* rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
@ 2016-02-09 10:11 Ross Green
2016-02-17 5:45 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-02-09 10:11 UTC (permalink / raw)
To: linux-kernel
Cc: Paul McKenney, mingo, jiangshanlai, dipankar, akpm,
Mathieu Desnoyers, josh, tglx, peterz, rostedt, dhowells,
Eric Dumazet, dvhart, Frédéric Weisbecker, oleg,
pranith kumar
[-- Attachment #1: Type: text/plain, Size: 541 bytes --]
Continued testing with the latest linux-4.5-rc3 release.
Please find attached a copy of traces from dmesg:
There is a lot more debug and trace data so hopefully this will shed
some light on what might be happening here.
My testing remains run a series of simple benchmarks, let that run to
completion and then leave the system idle away with just a few daemons
running.
the self detected stalls in this instance turned up after a days run time.
There were NO heavy artificial computational loads on the machine.
Regards,
Ross Green
[-- Attachment #2: dmesg-4.5-rc3 --]
[-- Type: application/octet-stream, Size: 29097 bytes --]
# cat /proc/version
Linux version 4.5.0-rc3-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #1 SMP PREEMPT Mon 6
$
$
$
$ uptime
19:36:00 up 1 day, 25 min, load average: 0.04, 0.08, 0.11
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.5.0-rc3-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #1 SMP PREEMPT Mon Feb 8 17:35:31 AEDT 2016
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c0966280, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7ab000 s17984 r8192 d22976 u49152
[ 0.000000] pcpu-alloc: s17984 r8192 d22976 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027232K/1046528K available (6879K kernel code, 252K rwdata, 2156K rodata, 304K init, 297K bss, 19296K reserved, 0K cma-reserved, 260096K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08db0d4 (9037 kB)
.init : 0xc08dc000 - 0xc0928000 ( 304 kB)
.data : 0xc0928000 - 0xc0967280 ( 253 kB)
.bss : 0xc096a000 - 0xc09b47b8 ( 298 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000854] Console: colour dummy device 80x30
[ 0.000854] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089202] pid_max: default: 32768 minimum: 301
[ 0.089263] Security Framework initialized
[ 0.089324] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089324] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089935] CPU: Testing write buffer coherency: ok
[ 0.090179] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090240] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.209197] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.209259] Brought up 2 CPUs
[ 0.209289] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.209289] CPU: All CPU(s) started in SVC mode.
[ 0.210083] devtmpfs: initialized
[ 0.226593] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.227081] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.227233] xor: measuring software checksum speed
[ 0.319183] arm4regs : 999.200 MB/sec
[ 0.419189] 8regs : 803.600 MB/sec
[ 0.519165] 32regs : 761.200 MB/sec
[ 0.519195] xor: using function: arm4regs (999.200 MB/sec)
[ 0.519439] pinctrl core: initialized pinctrl subsystem
[ 0.521331] NET: Registered protocol family 16
[ 0.522247] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.523956] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.525482] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.630645] OMAP GPIO hardware version 0.1
[ 0.635864] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.635894] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.636413] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.636779] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637176] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.648864] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.649139] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.655120] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.655151] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.655761] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.656005] OMAP DMA hardware revision 0.0
[ 0.889434] raid6: int32x1 gen() 103 MB/s
[ 1.059570] raid6: int32x1 xor() 82 MB/s
[ 1.229248] raid6: int32x2 gen() 134 MB/s
[ 1.399230] raid6: int32x2 xor() 98 MB/s
[ 1.569366] raid6: int32x4 gen() 145 MB/s
[ 1.739349] raid6: int32x4 xor() 98 MB/s
[ 1.909240] raid6: int32x8 gen() 160 MB/s
[ 2.079406] raid6: int32x8 xor() 94 MB/s
[ 2.079406] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.079437] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.079437] raid6: using intx1 recovery algorithm
[ 2.085418] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.159332] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.163574] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.163696] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.165771] SCSI subsystem initialized
[ 2.166046] usbcore: registered new interface driver usbfs
[ 2.166168] usbcore: registered new interface driver hub
[ 2.166320] usbcore: registered new device driver usb
[ 2.167266] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.167327] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.167358] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.167388] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.167663] Linux video capture interface: v2.00
[ 2.168395] Advanced Linux Sound Architecture Driver Initialized.
[ 2.169830] clocksource: Switched to clocksource 32k_counter
[ 2.183990] NET: Registered protocol family 2
[ 2.184570] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.184661] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.184814] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.184875] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.184936] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.185119] NET: Registered protocol family 1
[ 2.185516] RPC: Registered named UNIX socket transport module.
[ 2.185516] RPC: Registered udp transport module.
[ 2.185516] RPC: Registered tcp transport module.
[ 2.185546] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.187530] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.189666] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.208587] NFS: Registering the id_resolver key type
[ 2.208618] Key type id_resolver registered
[ 2.208618] Key type id_legacy registered
[ 2.208648] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.208679] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.219909] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.220214] fuse init (API version 7.24)
[ 2.223510] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.223602] bounce: pool size: 64 pages
[ 2.223632] io scheduler noop registered
[ 2.223632] io scheduler deadline registered
[ 2.223693] io scheduler cfq registered (default)
[ 2.224548] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.224792] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.227752] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.229370] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.229492] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.230072] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.230590] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.127227] console [ttyO2] enabled
[ 3.131378] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.142120] [drm] Initialized drm 1.1.0 20060810
[ 3.148651] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.156036] OMAP DSS rev 4.0
[ 3.159210] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.167541] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.176086] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.227966] loop: module loaded
[ 3.234039] usbcore: registered new interface driver smsc95xx
[ 3.240142] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.246978] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.269866] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.275543] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.283630] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.299865] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.306243] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.313354] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.320953] usb usb1: Product: EHCI Host Controller
[ 3.326049] usb usb1: Manufacturer: Linux 4.5.0-rc3-panda ehci_hcd
[ 3.332519] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.338104] hub 1-0:1.0: USB hub found
[ 3.342071] hub 1-0:1.0: 3 ports detected
[ 3.346984] usbcore: registered new interface driver cdc_wdm
[ 3.353057] usbcore: registered new interface driver usb-storage
[ 3.359771] i2c /dev entries driver
[ 3.363555] usbcore: registered new interface driver uvcvideo
[ 3.369567] USB Video Class driver (1.1.1)
[ 3.375091] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.382659] device-mapper: uevent: version 1.0.3
[ 3.387817] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.460845] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.466735] usbcore: registered new interface driver usbhid
[ 3.472564] usbhid: USB HID core driver
[ 3.477081] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.486389] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.497314] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.505249] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.512756] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.518432] Initializing XFRM netlink socket
[ 3.522979] NET: Registered protocol family 17
[ 3.527923] Key type dns_resolver registered
[ 3.532623] twl: not initialized
[ 3.536041] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.544647] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.553131] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.561645] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.570129] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.578613] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.587097] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.595581] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.603149] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.608856] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.616241] omap2_set_init_voltage: unable to set vdd_core
[ 3.622100] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.629364] omap2_set_init_voltage: unable to set vdd_iva
[ 3.635986] Power Management for TI OMAP4+ devices.
[ 3.641174] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.648345] ThumbEE CPU extension supported.
[ 3.652984] Registering SWP/SWPB emulation handler
[ 3.652984] SmartReflex Class3 initialized
[ 3.662506] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.687469] Btrfs loaded
[ 3.692626] dmm 4e000000.dmm: initialized all PAT entries
[ 3.718688] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.740264] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.746826] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.755584] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.777282] twl6040 0-004b: clk32k is not handled
[ 3.784545] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.791839] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.798645] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.805328] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.811676] omap_hsmmc 4809c000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.849731] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.856933] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.865173] hub 1-1:1.0: USB hub found
[ 3.869964] hub 1-1:1.0: 5 ports detected
[ 3.870361] omap_hsmmc 480d5000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 4.020507] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 4.033813] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.043365] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-02-08 08:10:04 UTC (1454919004)
[ 4.053649] sr_init: No PMIC hook to init smartreflex
[ 4.059204] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.067810] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.076324] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.092987] mmc1: new SDIO card at address 0001
[ 4.097869] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.108367] VDAC: disabling
[ 4.111511] mmc0: new high speed SDHC card at address e624
[ 4.117645] VANA: disabling
[ 4.121154] VUSB: disabling
[ 4.124450] ALSA device list:
[ 4.124450] #0: PandaBoardES
[ 4.130981] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.165100] mmcblk0: p1 p2 p3 p4
[ 4.180999] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.189727] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.197662] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.228881] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.236846] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.253448] devtmpfs: mounted
[ 4.253448] Freeing unused kernel memory: 304K (c08dc000 - c0928000)
[ 4.330383] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.337707] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.348327] smsc95xx v1.0.4
[ 4.458374] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, 36:1e:61:c0:2a:6a
[ 4.601470] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.658142] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.789886] random: dd urandom read with 29 bits of entropy available
[ 7.270111] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 17.209197] Bluetooth: Core ver 2.21
[ 17.216766] NET: Registered protocol family 31
[ 17.225830] Bluetooth: HCI device and connection manager initialized
[ 17.236480] Bluetooth: HCI socket layer initialized
[ 17.242248] Bluetooth: L2CAP socket layer initialized
[ 17.247711] Bluetooth: SCO socket layer initialized
[ 24.850402] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 24.861816] NFSD: starting 90-second grace period (net c09607c0)
[ 38.360900] random: nonblocking pool is initialized
[ 39.164764] wlcore: loaded
[ 52.577209] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 56.101531] wlan0: authenticate with 90:f6:52:81:ee:70
[ 56.138732] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 56.146728] wlan0: authenticated
[ 56.162078] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 56.172821] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 56.188201] wlan0: associated
[ 56.244812] wlcore: Association completed.
[ 144.881042] NFSD: Unable to end grace period: -110
[ 228.585998] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[66515.022857] INFO: rcu_preempt self-detected stall on CPU
[66515.022888] INFO: rcu_preempt self-detected stall on CPU
[66515.022888] 1-...: (1 ticks this GP) idle=7cb/1/0 softirq=515093/515093 fqs=0
[66515.022888]
[66515.022888] (t=8391 jiffies g=207416 c=207415 q=188)
[66515.022949] rcu_preempt kthread starved for 8391 jiffies! g207416 c207415 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[66515.022949] rcu_preempt S
[66515.022949] c06b9c18
[66515.022949] 0 7 2 0x00000000
[66515.022949] Backtrace:
[66515.022979] [<c06b9a4c>] (__schedule) from [<c06b9fa8>] (schedule+0x54/0xc4)
[66515.023010] r10:c092a518
[66515.023010] r9:00000001
[66515.023010] r8:0064e49b
[66515.023010] r7:c092a100
[66515.023010] r6:ef097ed4
[66515.023010] r5:ef7b73c0
[66515.023010] r4:ef096000
[66515.023040] [<c06b9f54>] (schedule) from [<c06bcda8>] (schedule_timeout+0x118/0x1ac)
[66515.023040] r5:ef7b73c0
[66515.023040] r4:ef7b73c0
[66515.023071] [<c06bcc90>] (schedule_timeout) from [<c0085f7c>] (rcu_gp_kthread+0x64c/0x99c)
[66515.023071] r8:c092a100
[66515.023101] r7:c093a210
[66515.023101] r6:c093a21c
[66515.023101] r5:c093a080
[66515.023101] r4:00000000
[66515.023132] [<c0085930>] (rcu_gp_kthread) from [<c00503c4>] (kthread+0xe4/0xfc)
[66515.023132] r7:c0085930
[66515.023162] [<c00502e0>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[66515.023162] r7:00000000
[66515.023162] r6:00000000
[66515.023162] r5:c00502e0
[66515.023162] r4:ef0407c0
[66515.023193] Task dump for CPU 0:
[66515.023193] swapper/0 R
[66515.023193] running
[66515.023193] 0 0 0 0x00000000
[66515.023193] Backtrace:
[66515.023193] Backtrace aborted due to bad frame pointer <c0929f54>
[66515.023193] Task dump for CPU 1:
[66515.023223] swapper/1 R
[66515.023223] running
[66515.023223] 0 0 1 0x00000000
[66515.023223] Backtrace:
[66515.023254] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[66515.023254] r7:c092a518
[66515.023254] r6:800c0193
[66515.023254] r5:00000001
[66515.023254] r4:ef077480
[66515.023254] [<c0014164>] (show_stack) from [<c005aaf8>] (sched_show_task+0xbc/0x110)
[66515.023315] [<c005aa3c>] (sched_show_task) from [<c005cf88>] (dump_cpu_task+0x40/0x48)
[66515.023315] r5:c093a080
[66515.023315] r4:00000001
[66515.023315] [<c005cf48>] (dump_cpu_task) from [<c0082754>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[66515.023345] r5:c093a080
[66515.023345] r4:00000002
[66515.023345] [<c00826b8>] (rcu_dump_cpu_stacks) from [<c0086bb8>] (rcu_check_callbacks+0x500/0x8e4)
[66515.023345] r9:c093a080
[66515.023376] r8:c092a628
[66515.023376] r7:2ee95000
[66515.023376] r6:c0926340
[66515.023376] r5:c093a080
[66515.023376] r4:ef7bb340
[66515.023406] [<c00866b8>] (rcu_check_callbacks) from [<c0089de8>] (update_process_times+0x40/0x6c)
[66515.023406] r10:c009b09c
[66515.023406] r9:00000001
[66515.023406] r8:ef7b7c4c
[66515.023406] r7:00003c7c
[66515.023437] r6:6ebe2431
[66515.023437] r5:00000000
[66515.023437] r4:ef077480
[66515.023468] [<c0089da8>] (update_process_times) from [<c009b098>] (tick_sched_handle+0x50/0x54)
[66515.023468] r5:ef09ff58
[66515.023468] r4:ef7b7e40
[66515.023468] [<c009b048>] (tick_sched_handle) from [<c009b0ec>] (tick_sched_timer+0x50/0x94)
[66515.023498] [<c009b09c>] (tick_sched_timer) from [<c008a82c>] (__hrtimer_run_queues+0x110/0x1a4)
[66515.023498] r7:00000000
[66515.023498] r6:ef7b7c40
[66515.023498] r5:ef7b7e40
[66515.023498] r4:ef7b7c00
[66515.023529] [<c008a71c>] (__hrtimer_run_queues) from [<c008aec0>] (hrtimer_interrupt+0xac/0x1fc)
[66515.023529] r10:ef7b7c78
[66515.023529] r9:ef7b7c98
[66515.023529] r8:ef7b7c14
[66515.023559] r7:ef7b7cb8
[66515.023559] r6:ffffffff
[66515.023559] r5:00000003
[66515.023559] r4:ef7b7c00
[66515.023590] [<c008ae14>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[66515.023590] r10:c092a4ec
[66515.023590] r9:fa241100
[66515.023590] r8:00000011
[66515.023590] r7:ef0287c0
[66515.023590] r6:c092a7a8
[66515.023590] r5:ef005cc0
[66515.023620] r4:00000001
[66515.023620] [<c00171d4>] (twd_handler) from [<c007cebc>] (handle_percpu_devid_irq+0x74/0x8c)
[66515.023651] r5:ef005cc0
[66515.023651] r4:ef7bd780
[66515.023651] [<c007ce48>] (handle_percpu_devid_irq) from [<c0078944>] (generic_handle_irq+0x2c/0x3c)
[66515.023681] r9:fa241100
[66515.023681] r8:ef008000
[66515.023681] r7:00000001
[66515.023681] r6:00000000
[66515.023681] r5:00000000
[66515.023681] r4:c092341c
[66515.023712] [<c0078918>] (generic_handle_irq) from [<c0078c3c>] (__handle_domain_irq+0x64/0xbc)
[66515.023712] [<c0078bd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[66515.023712] r9:fa241100
[66515.023712] r8:fa240100
[66515.023742] r7:ef09ff58
[66515.023742] r6:fa24010c
[66515.023742] r5:c092a7a8
[66515.023742] r4:c0947f48
[66515.023742] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[66515.023773] Exception stack(0xef09ff58 to 0xef09ffa0)
[66515.023773] ff40: 00000000 ef7b7388
[66515.023773] ff60: fe600000 00000000 ef09e000 c092a49c c0922364 ef09ffc8 c0967025 c0967025
[66515.023803] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c00289d4 c0010ca0 600c0113 ffffffff
[66515.023803] r9:c0967025
[66515.023803] r8:c0967025
[66515.023803] r7:ef09ff8c
[66515.023803] r6:ffffffff
[66515.023803] r5:600c0113
[66515.023803] r4:c0010ca0
[66515.023834] [<c0010c78>] (arch_cpu_idle) from [<c006f5b0>] (default_idle_call+0x28/0x34)
[66515.023864] [<c006f588>] (default_idle_call) from [<c006f6d4>] (cpu_startup_entry+0x118/0x188)
[66515.023864] [<c006f5bc>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[66515.023864] r7:c096a288
[66515.023864] r4:c093d140
[66515.023895] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[66515.023895] r5:00000051
[66515.023895] r4:af08406a
[66515.477172] 0-...: (1 GPs behind) idle=e19/1/0 softirq=475991/475991 fqs=36
[66515.485565] (t=8436 jiffies g=207416 c=207415 q=146)
[66515.491394] Task dump for CPU 0:
[66515.491394] swapper/0 R running 0 0 0 0x00000002
[66515.502075] Backtrace:
[66515.502075] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[66515.512695] r7:c092a518 r6:80010193 r5:00000000 r4:c092d180
[66515.512695] [<c0014164>] (show_stack) from [<c005aaf8>] (sched_show_task+0xbc/0x110)
[66515.512695] [<c005aa3c>] (sched_show_task) from [<c005cf88>] (dump_cpu_task+0x40/0x48)
[66515.512695] r5:c093a080 r4:00000000
[66515.539093] [<c005cf48>] (dump_cpu_task) from [<c0082754>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[66515.539093] r5:c093a080 r4:00000001
[66515.551635] [<c00826b8>] (rcu_dump_cpu_stacks) from [<c0086bb8>] (rcu_check_callbacks+0x500/0x8e4)
[66515.551635] r9:c093a080 r8:c092a628 r7:2ee89000 r6:c0926340 r5:c093a080 r4:ef7af340
[66515.551635] [<c00866b8>] (rcu_check_callbacks) from [<c0089de8>] (update_process_times+0x40/0x6c)
[66515.578735] r10:c009b09c r9:00000001 r8:ef7abc4c r7:00003c7c r6:6ebe2431 r5:00000000
[66515.578735] r4:c092d180
[66515.589752] [<c0089da8>] (update_process_times) from [<c009b098>] (tick_sched_handle+0x50/0x54)
[66515.589752] r5:c0929f10 r4:ef7abe40
[66515.602752] [<c009b048>] (tick_sched_handle) from [<c009b0ec>] (tick_sched_timer+0x50/0x94)
[66515.602752] [<c009b09c>] (tick_sched_timer) from [<c008a82c>] (__hrtimer_run_queues+0x110/0x1a4)
[66515.620880] r7:00000000 r6:ef7abc40 r5:ef7abe40 r4:ef7abc00
[66515.620880] [<c008a71c>] (__hrtimer_run_queues) from [<c008aec0>] (hrtimer_interrupt+0xac/0x1fc)
[66515.636199] r10:ef7abc78 r9:ef7abc98 r8:ef7abc14 r7:ef7abcb8 r6:ffffffff r5:00000003
[66515.636199] r4:ef7abc00
[66515.636199] [<c008ae14>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[66515.655578] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[66515.655578] r4:00000001
[66515.655578] [<c00171d4>] (twd_handler) from [<c007cebc>] (handle_percpu_devid_irq+0x74/0x8c)
[66515.666595] r5:ef005cc0 r4:ef7b1780
[66515.679321] [<c007ce48>] (handle_percpu_devid_irq) from [<c0078944>] (generic_handle_irq+0x2c/0x3c)
[66515.679321] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092341c
[66515.697113] [<c0078918>] (generic_handle_irq) from [<c0078c3c>] (__handle_domain_irq+0x64/0xbc)
[66515.706329] [<c0078bd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[66515.706329] r9:fa241100 r8:fa240100 r7:c0929f10 r6:fa24010c r5:c092a7a8 r4:c0947f48
[66515.723388] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[66515.723388] Exception stack(0xc0929f10 to 0xc0929f58)
[66515.723388] 9f00: 00000000 ef7ab388 fe600000 00000000
[66515.745300] 9f20: c0928000 c092a49c c0922364 c0929f80 c0967025 c0967025 c092a4ec c0929f6c
[66515.753967] 9f40: c0929f4c c0929f60 c00289d4 c0010ca0 60010113 ffffffff
[66515.753967] r9:c0967025 r8:c0967025 r7:c0929f44 r6:ffffffff r5:60010113 r4:c0010ca0
[66515.753967] [<c0010c78>] (arch_cpu_idle) from [<c006f5b0>] (default_idle_call+0x28/0x34)
[66515.753967] [<c006f588>] (default_idle_call) from [<c006f6d4>] (cpu_startup_entry+0x118/0x188)
[66515.786895] [<c006f5bc>] (cpu_startup_entry) from [<c06b937c>] (rest_init+0x90/0x94)
[66515.786895] r7:ffffffff r4:00000002
[66515.786895] [<c06b92ec>] (rest_init) from [<c08dcd0c>] (start_kernel+0x390/0x39c)
[66515.786895] r5:c096a000 r4:00000000
[66515.810607] [<c08dc97c>] (start_kernel) from [<8000807c>] (0x8000807c)
$
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-09 10:11 rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17 Ross Green
@ 2016-02-17 5:45 ` Paul E. McKenney
2016-02-17 19:28 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-17 5:45 UTC (permalink / raw)
To: Ross Green
Cc: linux-kernel, mingo, jiangshanlai, dipankar, akpm,
Mathieu Desnoyers, josh, tglx, peterz, rostedt, dhowells,
Eric Dumazet, dvhart, Frédéric Weisbecker, oleg,
pranith kumar
On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
> Continued testing with the latest linux-4.5-rc3 release.
>
> Please find attached a copy of traces from dmesg:
>
> There is a lot more debug and trace data so hopefully this will shed
> some light on what might be happening here.
>
> My testing remains run a series of simple benchmarks, let that run to
> completion and then leave the system idle away with just a few daemons
> running.
>
> the self detected stalls in this instance turned up after a days run time.
> There were NO heavy artificial computational loads on the machine.
It does indeed look quiet on that dmesg for a good long time.
The following insanely crude not-for-mainline hack -might- be producing
good results in my testing. It will take some time before I can claim
statistically different results. But please feel free to give it a go
in the meantime. (Thanks to Al Viro for pointing me in this direction.)
Thanx, Paul
------------------------------------------------------------------------
commit 0c2c8d9fd1641809830a7a75f84dcad69936ef56
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue Feb 16 15:42:36 2016 -0800
rcu: Crude exploratory hack
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 507d0ed48b97..5928e084620d 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2194,8 +2194,10 @@ static int __noreturn rcu_gp_kthread(void *arg)
READ_ONCE(rsp->gpnum),
TPS("fqswait"));
rsp->gp_state = RCU_GP_WAIT_FQS;
- ret = wait_event_interruptible_timeout(rsp->gp_wq,
- rcu_gp_fqs_check_wake(rsp, &gf), j);
+ ret = schedule_timeout_interruptible(j > 0 ? j : 1);
+ rcu_gp_fqs_check_wake(rsp, &gf);
+ // ret = wait_event_interruptible_timeout(rsp->gp_wq,
+ // rcu_gp_fqs_check_wake(rsp, &gf), j);
rsp->gp_state = RCU_GP_DOING_FQS;
/* Locking provides needed memory barriers. */
/* If grace period done, leave loop. */
^ permalink raw reply related [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-17 5:45 ` Paul E. McKenney
@ 2016-02-17 19:28 ` Paul E. McKenney
2016-02-17 19:45 ` Peter Zijlstra
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-17 19:28 UTC (permalink / raw)
To: Ross Green
Cc: linux-kernel, mingo, jiangshanlai, dipankar, akpm,
Mathieu Desnoyers, josh, tglx, peterz, rostedt, dhowells,
Eric Dumazet, dvhart, Frédéric Weisbecker, oleg,
pranith kumar
On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote:
> On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
> > Continued testing with the latest linux-4.5-rc3 release.
> >
> > Please find attached a copy of traces from dmesg:
> >
> > There is a lot more debug and trace data so hopefully this will shed
> > some light on what might be happening here.
> >
> > My testing remains run a series of simple benchmarks, let that run to
> > completion and then leave the system idle away with just a few daemons
> > running.
> >
> > the self detected stalls in this instance turned up after a days run time.
> > There were NO heavy artificial computational loads on the machine.
>
> It does indeed look quiet on that dmesg for a good long time.
>
> The following insanely crude not-for-mainline hack -might- be producing
> good results in my testing. It will take some time before I can claim
> statistically different results. But please feel free to give it a go
> in the meantime. (Thanks to Al Viro for pointing me in this direction.)
No joy, just a statistical anomaly. :-(
Thanx, Paul
> ------------------------------------------------------------------------
>
> commit 0c2c8d9fd1641809830a7a75f84dcad69936ef56
> Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Date: Tue Feb 16 15:42:36 2016 -0800
>
> rcu: Crude exploratory hack
>
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
>
> diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
> index 507d0ed48b97..5928e084620d 100644
> --- a/kernel/rcu/tree.c
> +++ b/kernel/rcu/tree.c
> @@ -2194,8 +2194,10 @@ static int __noreturn rcu_gp_kthread(void *arg)
> READ_ONCE(rsp->gpnum),
> TPS("fqswait"));
> rsp->gp_state = RCU_GP_WAIT_FQS;
> - ret = wait_event_interruptible_timeout(rsp->gp_wq,
> - rcu_gp_fqs_check_wake(rsp, &gf), j);
> + ret = schedule_timeout_interruptible(j > 0 ? j : 1);
> + rcu_gp_fqs_check_wake(rsp, &gf);
> + // ret = wait_event_interruptible_timeout(rsp->gp_wq,
> + // rcu_gp_fqs_check_wake(rsp, &gf), j);
> rsp->gp_state = RCU_GP_DOING_FQS;
> /* Locking provides needed memory barriers. */
> /* If grace period done, leave loop. */
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-17 19:28 ` Paul E. McKenney
@ 2016-02-17 19:45 ` Peter Zijlstra
2016-02-17 20:28 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Peter Zijlstra @ 2016-02-17 19:45 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Ross Green, linux-kernel, mingo, jiangshanlai, dipankar, akpm,
Mathieu Desnoyers, josh, tglx, rostedt, dhowells, Eric Dumazet,
dvhart, Frédéric Weisbecker, oleg, pranith kumar
On Wed, Feb 17, 2016 at 11:28:17AM -0800, Paul E. McKenney wrote:
> On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote:
> > On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
> > > Continued testing with the latest linux-4.5-rc3 release.
> > >
> > > Please find attached a copy of traces from dmesg:
> > >
> > > There is a lot more debug and trace data so hopefully this will shed
> > > some light on what might be happening here.
> > >
> > > My testing remains run a series of simple benchmarks, let that run to
> > > completion and then leave the system idle away with just a few daemons
> > > running.
> > >
> > > the self detected stalls in this instance turned up after a days run time.
> > > There were NO heavy artificial computational loads on the machine.
> >
> > It does indeed look quiet on that dmesg for a good long time.
> >
> > The following insanely crude not-for-mainline hack -might- be producing
> > good results in my testing. It will take some time before I can claim
> > statistically different results. But please feel free to give it a go
> > in the meantime. (Thanks to Al Viro for pointing me in this direction.)
Your case was special in that is was hotplug triggering it, right?
I was auditing the hotplug paths involved when I fell ill two weeks ago,
and have not really made any progress on that because of that :/
I'll go have another look, I had a vague feeling for a race back then,
lets see if I can still remember how..
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-17 19:45 ` Peter Zijlstra
@ 2016-02-17 20:28 ` Paul E. McKenney
2016-02-17 23:19 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-17 20:28 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Ross Green, linux-kernel, mingo, jiangshanlai, dipankar, akpm,
Mathieu Desnoyers, josh, tglx, rostedt, dhowells, Eric Dumazet,
dvhart, Frédéric Weisbecker, oleg, pranith kumar
On Wed, Feb 17, 2016 at 08:45:54PM +0100, Peter Zijlstra wrote:
> On Wed, Feb 17, 2016 at 11:28:17AM -0800, Paul E. McKenney wrote:
> > On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote:
> > > On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
> > > > Continued testing with the latest linux-4.5-rc3 release.
> > > >
> > > > Please find attached a copy of traces from dmesg:
> > > >
> > > > There is a lot more debug and trace data so hopefully this will shed
> > > > some light on what might be happening here.
> > > >
> > > > My testing remains run a series of simple benchmarks, let that run to
> > > > completion and then leave the system idle away with just a few daemons
> > > > running.
> > > >
> > > > the self detected stalls in this instance turned up after a days run time.
> > > > There were NO heavy artificial computational loads on the machine.
> > >
> > > It does indeed look quiet on that dmesg for a good long time.
> > >
> > > The following insanely crude not-for-mainline hack -might- be producing
> > > good results in my testing. It will take some time before I can claim
> > > statistically different results. But please feel free to give it a go
> > > in the meantime. (Thanks to Al Viro for pointing me in this direction.)
>
> Your case was special in that is was hotplug triggering it, right?
Yes, it has thus far only shown up with CPU hotplug enabled.
> I was auditing the hotplug paths involved when I fell ill two weeks ago,
> and have not really made any progress on that because of that :/
I have always said that being sick is bad for one's health, but I didn't
realize that it could be bad for the kernel's health as well. ;-)
> I'll go have another look, I had a vague feeling for a race back then,
> lets see if I can still remember how..
I believe that I can -finally- get an ftrace_dump() to happen within
10-20 milliseconds of the problem, which just might be soon enough
after the problem to gather some useful information. I am currently
testing this theory with "ftrace trace_event=sched_waking,sched_wakeup"
boot arguments on a two-hour run.
If this works out, what would be a useful set of trace events for me
to capture?
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-17 20:28 ` Paul E. McKenney
@ 2016-02-17 23:19 ` Paul E. McKenney
2016-02-18 11:51 ` Ross Green
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-17 23:19 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Ross Green, linux-kernel, mingo, jiangshanlai, dipankar, akpm,
Mathieu Desnoyers, josh, tglx, rostedt, dhowells, Eric Dumazet,
dvhart, Frédéric Weisbecker, oleg, pranith kumar
On Wed, Feb 17, 2016 at 12:28:29PM -0800, Paul E. McKenney wrote:
> On Wed, Feb 17, 2016 at 08:45:54PM +0100, Peter Zijlstra wrote:
> > On Wed, Feb 17, 2016 at 11:28:17AM -0800, Paul E. McKenney wrote:
> > > On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote:
> > > > On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
> > > > > Continued testing with the latest linux-4.5-rc3 release.
> > > > >
> > > > > Please find attached a copy of traces from dmesg:
> > > > >
> > > > > There is a lot more debug and trace data so hopefully this will shed
> > > > > some light on what might be happening here.
> > > > >
> > > > > My testing remains run a series of simple benchmarks, let that run to
> > > > > completion and then leave the system idle away with just a few daemons
> > > > > running.
> > > > >
> > > > > the self detected stalls in this instance turned up after a days run time.
> > > > > There were NO heavy artificial computational loads on the machine.
> > > >
> > > > It does indeed look quiet on that dmesg for a good long time.
> > > >
> > > > The following insanely crude not-for-mainline hack -might- be producing
> > > > good results in my testing. It will take some time before I can claim
> > > > statistically different results. But please feel free to give it a go
> > > > in the meantime. (Thanks to Al Viro for pointing me in this direction.)
> >
> > Your case was special in that is was hotplug triggering it, right?
>
> Yes, it has thus far only shown up with CPU hotplug enabled.
>
> > I was auditing the hotplug paths involved when I fell ill two weeks ago,
> > and have not really made any progress on that because of that :/
>
> I have always said that being sick is bad for one's health, but I didn't
> realize that it could be bad for the kernel's health as well. ;-)
>
> > I'll go have another look, I had a vague feeling for a race back then,
> > lets see if I can still remember how..
>
> I believe that I can -finally- get an ftrace_dump() to happen within
> 10-20 milliseconds of the problem, which just might be soon enough
> after the problem to gather some useful information. I am currently
> testing this theory with "ftrace trace_event=sched_waking,sched_wakeup"
> boot arguments on a two-hour run.
And apparently another way to greatly reduce the probability of this
bug occurring is to enable ftrace. :-/
Will try longer runs.
Thanx, Paul
> If this works out, what would be a useful set of trace events for me
> to capture?
>
> Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-17 23:19 ` Paul E. McKenney
@ 2016-02-18 11:51 ` Ross Green
2016-02-18 23:14 ` Mathieu Desnoyers
0 siblings, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-02-18 11:51 UTC (permalink / raw)
To: Paul McKenney
Cc: Peter Zijlstra, linux-kernel, mingo, jiangshanlai, dipankar,
akpm, Mathieu Desnoyers, josh, tglx, rostedt, dhowells,
Eric Dumazet, dvhart, Frédéric Weisbecker, oleg,
pranith kumar
[-- Attachment #1: Type: text/plain, Size: 3355 bytes --]
On Thu, Feb 18, 2016 at 10:19 AM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> On Wed, Feb 17, 2016 at 12:28:29PM -0800, Paul E. McKenney wrote:
>> On Wed, Feb 17, 2016 at 08:45:54PM +0100, Peter Zijlstra wrote:
>> > On Wed, Feb 17, 2016 at 11:28:17AM -0800, Paul E. McKenney wrote:
>> > > On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote:
>> > > > On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
>> > > > > Continued testing with the latest linux-4.5-rc3 release.
>> > > > >
>> > > > > Please find attached a copy of traces from dmesg:
>> > > > >
>> > > > > There is a lot more debug and trace data so hopefully this will shed
>> > > > > some light on what might be happening here.
>> > > > >
>> > > > > My testing remains run a series of simple benchmarks, let that run to
>> > > > > completion and then leave the system idle away with just a few daemons
>> > > > > running.
>> > > > >
>> > > > > the self detected stalls in this instance turned up after a days run time.
>> > > > > There were NO heavy artificial computational loads on the machine.
>> > > >
>> > > > It does indeed look quiet on that dmesg for a good long time.
>> > > >
>> > > > The following insanely crude not-for-mainline hack -might- be producing
>> > > > good results in my testing. It will take some time before I can claim
>> > > > statistically different results. But please feel free to give it a go
>> > > > in the meantime. (Thanks to Al Viro for pointing me in this direction.)
>> >
>> > Your case was special in that is was hotplug triggering it, right?
>>
>> Yes, it has thus far only shown up with CPU hotplug enabled.
>>
>> > I was auditing the hotplug paths involved when I fell ill two weeks ago,
>> > and have not really made any progress on that because of that :/
>>
>> I have always said that being sick is bad for one's health, but I didn't
>> realize that it could be bad for the kernel's health as well. ;-)
>>
>> > I'll go have another look, I had a vague feeling for a race back then,
>> > lets see if I can still remember how..
>>
>> I believe that I can -finally- get an ftrace_dump() to happen within
>> 10-20 milliseconds of the problem, which just might be soon enough
>> after the problem to gather some useful information. I am currently
>> testing this theory with "ftrace trace_event=sched_waking,sched_wakeup"
>> boot arguments on a two-hour run.
>
> And apparently another way to greatly reduce the probability of this
> bug occurring is to enable ftrace. :-/
>
> Will try longer runs.
>
> Thanx, Paul
>
>> If this works out, what would be a useful set of trace events for me
>> to capture?
>>
>> Thanx, Paul
>
Well managed to catch this one on linux-4.5-rc4.
Took over 3 days and 7 hours to hit.
Same test as before, boot, run a series of simple benchmarks and then
let the machine just idle away.
As before, the reported stall, AND everything keeps on running as if
nothing had happened.
I notice in the task dump for both the cpus, the swapper is running on
both cpus.
does that make any sense?
There is around 3% of memory actually used.
Anyway, please find attached a copy of the dmesg output.
Hope this helps a few people fill in the missing pieces here.
Regards,
Ross Green
[-- Attachment #2: dmesg-4.5-rc4 --]
[-- Type: application/octet-stream, Size: 30353 bytes --]
$ uptime
22:14:35 up 3 days, 7:45, load average: 0.02, 0.06, 0.11
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.5.0-rc4-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #1 SMP PREEMPT Mon Feb 15 12:35:52 AEDT 2016
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c09662c0, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7ab000 s17984 r8192 d22976 u49152
[ 0.000000] pcpu-alloc: s17984 r8192 d22976 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027232K/1046528K available (6879K kernel code, 252K rwdata, 2156K rodata, 304K init, 297K bss, 19296K reserved, 0K cma-reserved, 260096K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08db0d4 (9037 kB)
.init : 0xc08dc000 - 0xc0928000 ( 304 kB)
.data : 0xc0928000 - 0xc09672c0 ( 253 kB)
.bss : 0xc096a000 - 0xc09b47b8 ( 298 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000854] Console: colour dummy device 80x30
[ 0.000885] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089172] pid_max: default: 32768 minimum: 301
[ 0.089233] Security Framework initialized
[ 0.089294] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089294] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089904] CPU: Testing write buffer coherency: ok
[ 0.090148] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090209] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.209167] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.209228] Brought up 2 CPUs
[ 0.209259] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.209259] CPU: All CPU(s) started in SVC mode.
[ 0.210052] devtmpfs: initialized
[ 0.227111] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.227600] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.227752] xor: measuring software checksum speed
[ 0.319152] arm4regs : 1006.000 MB/sec
[ 0.419128] 8regs : 803.600 MB/sec
[ 0.519134] 32regs : 760.800 MB/sec
[ 0.519165] xor: using function: arm4regs (1006.000 MB/sec)
[ 0.519409] pinctrl core: initialized pinctrl subsystem
[ 0.521301] NET: Registered protocol family 16
[ 0.522216] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.523925] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.525451] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.630523] OMAP GPIO hardware version 0.1
[ 0.635803] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.635803] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.636352] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.636718] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637084] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.648925] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.649261] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.655273] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.655303] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.655944] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.656158] OMAP DMA hardware revision 0.0
[ 0.879425] raid6: int32x1 gen() 103 MB/s
[ 1.049407] raid6: int32x1 xor() 83 MB/s
[ 1.219207] raid6: int32x2 gen() 134 MB/s
[ 1.389343] raid6: int32x2 xor() 99 MB/s
[ 1.559448] raid6: int32x4 gen() 145 MB/s
[ 1.729278] raid6: int32x4 xor() 97 MB/s
[ 1.899230] raid6: int32x8 gen() 160 MB/s
[ 2.069366] raid6: int32x8 xor() 94 MB/s
[ 2.069396] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.069396] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.069396] raid6: using intx1 recovery algorithm
[ 2.075439] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.149291] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.153533] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.153656] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.155761] SCSI subsystem initialized
[ 2.156036] usbcore: registered new interface driver usbfs
[ 2.156188] usbcore: registered new interface driver hub
[ 2.156311] usbcore: registered new device driver usb
[ 2.157287] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.157318] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.157379] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.157409] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.157684] Linux video capture interface: v2.00
[ 2.158416] Advanced Linux Sound Architecture Driver Initialized.
[ 2.159881] clocksource: Switched to clocksource 32k_counter
[ 2.174499] NET: Registered protocol family 2
[ 2.175109] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.175201] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.175323] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.175415] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.175476] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.175659] NET: Registered protocol family 1
[ 2.175994] RPC: Registered named UNIX socket transport module.
[ 2.176025] RPC: Registered udp transport module.
[ 2.176025] RPC: Registered tcp transport module.
[ 2.176025] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.178314] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.181396] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.204132] NFS: Registering the id_resolver key type
[ 2.204162] Key type id_resolver registered
[ 2.204162] Key type id_legacy registered
[ 2.204193] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.204223] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.205780] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.206176] fuse init (API version 7.24)
[ 2.209625] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.209716] bounce: pool size: 64 pages
[ 2.209716] io scheduler noop registered
[ 2.209747] io scheduler deadline registered
[ 2.209808] io scheduler cfq registered (default)
[ 2.210723] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.210937] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.214263] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.216156] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.216278] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.216857] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.217407] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.114410] console [ttyO2] enabled
[ 3.118560] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.129302] [drm] Initialized drm 1.1.0 20060810
[ 3.135803] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.143188] OMAP DSS rev 4.0
[ 3.146362] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.154693] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.163330] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.215209] loop: module loaded
[ 3.221374] usbcore: registered new interface driver smsc95xx
[ 3.227447] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.234344] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.259948] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.265624] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.273712] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.299926] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.306304] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.313415] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.321014] usb usb1: Product: EHCI Host Controller
[ 3.326110] usb usb1: Manufacturer: Linux 4.5.0-rc4-panda ehci_hcd
[ 3.332580] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.338165] hub 1-0:1.0: USB hub found
[ 3.342163] hub 1-0:1.0: 3 ports detected
[ 3.347045] usbcore: registered new interface driver cdc_wdm
[ 3.353149] usbcore: registered new interface driver usb-storage
[ 3.359832] i2c /dev entries driver
[ 3.363647] usbcore: registered new interface driver uvcvideo
[ 3.369659] USB Video Class driver (1.1.1)
[ 3.375152] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.382720] device-mapper: uevent: version 1.0.3
[ 3.387878] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.460937] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.466796] usbcore: registered new interface driver usbhid
[ 3.472656] usbhid: USB HID core driver
[ 3.477142] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.486450] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.497375] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.505340] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.512817] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.518493] Initializing XFRM netlink socket
[ 3.523040] NET: Registered protocol family 17
[ 3.527984] Key type dns_resolver registered
[ 3.532653] twl: not initialized
[ 3.536071] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.544677] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.553192] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.561676] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.570159] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.578643] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.587127] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.595642] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.603210] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.608947] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.616333] omap2_set_init_voltage: unable to set vdd_core
[ 3.622161] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.629425] omap2_set_init_voltage: unable to set vdd_iva
[ 3.636047] Power Management for TI OMAP4+ devices.
[ 3.641235] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.648437] ThumbEE CPU extension supported.
[ 3.653076] Registering SWP/SWPB emulation handler
[ 3.653076] SmartReflex Class3 initialized
[ 3.662567] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.684265] Btrfs loaded
[ 3.689392] dmm 4e000000.dmm: initialized all PAT entries
[ 3.710876] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.730407] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.736816] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.745361] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.767181] twl6040 0-004b: clk32k is not handled
[ 3.775054] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.781982] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.789031] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.795806] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.801757] omap_hsmmc 4809c000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.827178] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.834411] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.842651] hub 1-1:1.0: USB hub found
[ 3.846832] hub 1-1:1.0: 5 ports detected
[ 3.862304] omap_hsmmc 480d5000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.994659] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.010894] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 4.022277] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-02-15 03:29:23 UTC (1455506963)
[ 4.032470] sr_init: No PMIC hook to init smartreflex
[ 4.038116] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.046844] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.055389] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.065307] mmc1: new SDIO card at address 0001
[ 4.072692] vwl1271: disabling
[ 4.076934] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.078979] VDAC: disabling
[ 4.079437] VANA: disabling
[ 4.079864] VUSB: disabling
[ 4.080230] ALSA device list:
[ 4.080230] #0: PandaBoardES
[ 4.101013] Waiting for root device /dev/mmcblk0p2...
[ 4.106475] mmc0: new high speed SDHC card at address e624
[ 4.112945] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.147369] mmcblk0: p1 p2 p3 p4
[ 4.152496] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.220825] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.230010] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.260223] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.270416] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.286865] devtmpfs: mounted
[ 4.290008] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.297332] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.297332] Freeing unused kernel memory: 304K (c08dc000 - c0928000)
[ 4.314666] smsc95xx v1.0.4
[ 4.409088] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, 96:f9:8a:33:0d:a7
[ 4.640808] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.694946] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.840026] random: dd urandom read with 29 bits of entropy available
[ 10.340759] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 20.158081] Bluetooth: Core ver 2.21
[ 20.161895] NET: Registered protocol family 31
[ 20.167266] Bluetooth: HCI device and connection manager initialized
[ 20.174987] Bluetooth: HCI socket layer initialized
[ 20.180236] Bluetooth: L2CAP socket layer initialized
[ 20.185699] Bluetooth: SCO socket layer initialized
[ 27.729614] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 27.740997] NFSD: starting 90-second grace period (net c09607c0)
[ 45.050445] random: nonblocking pool is initialized
[ 54.592010] wlcore: loaded
[ 68.823089] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 72.377471] wlan0: authenticate with 90:f6:52:81:ee:70
[ 72.392028] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 72.399688] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 72.406982] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 72.414276] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 75.921600] wlan0: authenticate with 90:f6:52:81:ee:70
[ 75.950622] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 75.958770] wlan0: authenticated
[ 75.976959] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 75.987701] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 76.002685] wlan0: associated
[ 76.066345] wlcore: Association completed.
[ 148.034057] NFSD: Unable to end grace period: -110
[ 215.277313] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[280121.367279] INFO: rcu_preempt self-detected stall on CPU
[280121.367279] INFO: rcu_preempt self-detected stall on CPU
[280121.367309] 0-...: (1 GPs behind) idle=917/1/0 softirq=1840575/1840576 fqs=0
[280121.367309] (t=18827 jiffies g=867073 c=867072 q=2)
[280121.367309] rcu_preempt kthread starved for 18827 jiffies! g867073 c867072 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0
[280121.367340] rcu_preempt R running 0 7 2 0x00000000
[280121.367340] Backtrace:
[280121.367370] [<c06b9d94>] (__schedule) from [<c06ba2f0>] (schedule+0x54/0xc4)
[280121.367401] r10:c092a518 r9:00000001 r8:01aaaf55 r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[280121.367401] r4:ef096000
[280121.367401] [<c06ba29c>] (schedule) from [<c06bd0f0>] (schedule_timeout+0x118/0x1ac)
[280121.367431] r5:ef7b73c0 r4:ef7b73c0
[280121.367431] [<c06bcfd8>] (schedule_timeout) from [<c00860ec>] (rcu_gp_kthread+0x64c/0x99c)
[280121.367431] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[280121.367492] [<c0085aa0>] (rcu_gp_kthread) from [<c0050534>] (kthread+0xe4/0xfc)
[280121.367492] r7:c0085aa0
[280121.367523] [<c0050450>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[280121.367523] r7:00000000 r6:00000000 r5:c0050450 r4:ef0407c0
[280121.367523] Task dump for CPU 0:
[280121.367553] swapper/0 R running 0 0 0 0x00000000
[280121.367553] Backtrace:
[280121.367584] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[280121.367584] r7:c092a518 r6:800c0193 r5:00000000 r4:c092d180
[280121.367614] [<c0014164>] (show_stack) from [<c005ac68>] (sched_show_task+0xbc/0x110)
[280121.367614] [<c005abac>] (sched_show_task) from [<c005d0f8>] (dump_cpu_task+0x40/0x48)
[280121.367645] r5:c093a080 r4:00000000
[280121.367645] [<c005d0b8>] (dump_cpu_task) from [<c00828c4>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[280121.367645] r5:c093a080 r4:00000001
[280121.367675] [<c0082828>] (rcu_dump_cpu_stacks) from [<c0086d28>] (rcu_check_callbacks+0x500/0x8e4)
[280121.367706] r9:c093a080 r8:c092a628 r7:2ee89000 r6:c0926340 r5:c093a080 r4:ef7af340
[280121.367706] [<c0086828>] (rcu_check_callbacks) from [<c0089f58>] (update_process_times+0x40/0x6c)
[280121.367736] r10:c009b20c r9:00000001 r8:ef7abc4c r7:0000fec4 r6:a1351daf r5:00000000
[280121.367736] r4:c092d180
[280121.367767] [<c0089f18>] (update_process_times) from [<c009b208>] (tick_sched_handle+0x50/0x54)
[280121.367767] r5:c0929f10 r4:ef7abe40
[280121.367767] [<c009b1b8>] (tick_sched_handle) from [<c009b25c>] (tick_sched_timer+0x50/0x94)
[280121.367797] [<c009b20c>] (tick_sched_timer) from [<c008a99c>] (__hrtimer_run_queues+0x110/0x1a4)
[280121.367797] r7:00000000 r6:ef7abc40 r5:ef7abe40 r4:ef7abc00
[280121.367828] [<c008a88c>] (__hrtimer_run_queues) from [<c008b030>] (hrtimer_interrupt+0xac/0x1fc)
[280121.367828] r10:ef7abc78 r9:ef7abc98 r8:ef7abc14 r7:ef7abcb8 r6:ffffffff r5:00000003
[280121.367858] r4:ef7abc00
[280121.367858] [<c008af84>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[280121.367889] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[280121.367889] r4:00000001
[280121.367919] [<c00171d4>] (twd_handler) from [<c007d02c>] (handle_percpu_devid_irq+0x74/0x8c)
[280121.367919] r5:ef005cc0 r4:ef7b1780
[280121.367950] [<c007cfb8>] (handle_percpu_devid_irq) from [<c0078ab4>] (generic_handle_irq+0x2c/0x3c)
[280121.367950] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092341c
[280121.367980] [<c0078a88>] (generic_handle_irq) from [<c0078dac>] (__handle_domain_irq+0x64/0xbc)
[280121.367980] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[280121.368011] r9:fa241100 r8:fa240100 r7:c0929f10 r6:fa24010c r5:c092a7a8 r4:c0947f48
[280121.368011] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[280121.368011] Exception stack(0xc0929f10 to 0xc0929f58)
[280121.368041] 9f00: 00000000 ef7ab390 fe600000 00000000
[280121.368041] 9f20: c0928000 c092a49c c092236c c0929f80 c0967065 c0967065 c092a4ec c0929f6c
[280121.368072] 9f40: c0929f4c c0929f60 c0028a30 c0010ca0 600c0113 ffffffff
[280121.368072] r9:c0967065 r8:c0967065 r7:c0929f44 r6:ffffffff r5:600c0113 r4:c0010ca0
[280121.368103] [<c0010c78>] (arch_cpu_idle) from [<c006f720>] (default_idle_call+0x28/0x34)
[280121.368103] [<c006f6f8>] (default_idle_call) from [<c006f844>] (cpu_startup_entry+0x118/0x188)
[280121.368133] [<c006f72c>] (cpu_startup_entry) from [<c06b96c8>] (rest_init+0x90/0x94)
[280121.368133] r7:ffffffff r4:00000002
[280121.368133] [<c06b9638>] (rest_init) from [<c08dcd0c>] (start_kernel+0x390/0x39c)
[280121.368133] r5:c096a000 r4:00000000
[280121.368194] [<c08dc97c>] (start_kernel) from [<8000807c>] (0x8000807c)
[280121.368194] Task dump for CPU 1:
[280121.368225] swapper/1 R running 0 0 1 0x00000002
[280121.368225] Backtrace:
[280121.368225] Backtrace aborted due to bad frame pointer <ef09ff9c>
[280121.833038] 1-...: (2 ticks this GP) idle=ded/2/0 softirq=3193168/3193168 fqs=0
[280121.833038] (t=18874 jiffies g=867073 c=867072 q=5)
[280121.845672] rcu_preempt kthread starved for 18875 jiffies! g867073 c867072 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0
[280121.845672] rcu_preempt R running 0 7 2 0x00000000
[280121.864105] Backtrace:
[280121.864105] [<c06b9d94>] (__schedule) from [<c06ba2f0>] (schedule+0x54/0xc4)
[280121.874359] r10:c092a518 r9:00000001 r8:01aaaf55 r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[280121.874359] r4:ef096000
[280121.883331] [<c06ba29c>] (schedule) from [<c06bd0f0>] (schedule_timeout+0x118/0x1ac)
[280121.887329] r5:ef7b73c0 r4:ef7b73c0
[280121.887329] [<c06bcfd8>] (schedule_timeout) from [<c00860ec>] (rcu_gp_kthread+0x64c/0x99c)
[280121.897735] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[280121.907257] [<c0085aa0>] (rcu_gp_kthread) from [<c0050534>] (kthread+0xe4/0xfc)
[280121.921600] r7:c0085aa0
[280121.921600] [<c0050450>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[280121.921600] r7:00000000 r6:00000000 r5:c0050450 r4:ef0407c0
[280121.932891] Task dump for CPU 1:
[280121.941711] swapper/1 R running 0 0 1 0x00000002
[280121.947265] Backtrace:
[280121.947265] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[280121.947265] r7:c092a518 r6:80080193 r5:00000001 r4:ef077480
[280121.965454] [<c0014164>] (show_stack) from [<c005ac68>] (sched_show_task+0xbc/0x110)
[280121.969024] [<c005abac>] (sched_show_task) from [<c005d0f8>] (dump_cpu_task+0x40/0x48)
[280121.982208] r5:c093a080 r4:00000001
[280121.982208] [<c005d0b8>] (dump_cpu_task) from [<c00828c4>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[280121.990051] r5:c093a080 r4:00000002
[280121.990051] [<c0082828>] (rcu_dump_cpu_stacks) from [<c0086d28>] (rcu_check_callbacks+0x500/0x8e4)
[280122.008392] r9:c093a080 r8:c092a628 r7:2ee95000 r6:c0926340 r5:c093a080 r4:ef7bb340
[280122.010040] [<c0086828>] (rcu_check_callbacks) from [<c0089f58>] (update_process_times+0x40/0x6c)
[280122.017761] r10:c009b20c r9:00000001 r8:ef7b7c4c r7:0000fec4 r6:a1b4b4e7 r5:00000000
[280122.027770] r4:ef077480
[280122.037261] [<c0089f18>] (update_process_times) from [<c009b208>] (tick_sched_handle+0x50/0x54)
[280122.040313] r5:ef09fdf0 r4:ef7b7e40
[280122.050567] [<c009b1b8>] (tick_sched_handle) from [<c009b25c>] (tick_sched_timer+0x50/0x94)
[280122.050567] [<c009b20c>] (tick_sched_timer) from [<c008a99c>] (__hrtimer_run_queues+0x110/0x1a4)
[280122.063934] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[280122.070587] [<c008a88c>] (__hrtimer_run_queues) from [<c008b030>] (hrtimer_interrupt+0xac/0x1fc)
[280122.077270] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[280122.077270] r4:ef7b7c00
[280122.077270] [<c008af84>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[280122.097229] r10:c05fdb80 r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[280122.107330] r4:00000001
[280122.112884] [<c00171d4>] (twd_handler) from [<c007d02c>] (handle_percpu_devid_irq+0x74/0x8c)
[280122.118530] r5:ef005cc0 r4:ef7bd780
[280122.118530] [<c007cfb8>] (handle_percpu_devid_irq) from [<c0078ab4>] (generic_handle_irq+0x2c/0x3c)
[280122.137786] r9:fa241100 r8:ef008000 r7:00000001 r6:ef09ff58 r5:00000000 r4:c092341c
[280122.140899] [<c0078a88>] (generic_handle_irq) from [<c0078dac>] (__handle_domain_irq+0x64/0xbc)
[280122.153594] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[280122.163665] r9:fa241100 r8:fa240100 r7:ef09fdf0 r6:fa24010c r5:c092a7a8 r4:c0947f48
[280122.167266] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[280122.180664] Exception stack(0xef09fdf0 to 0xef09fe38)
[280122.180664] fde0: ef7b73c0 00000005 ef09fe5c 000053b3
[280122.194854] fe00: ef3ff230 ef7b73c0 00000000 00000200 ef7b73e0 ef3ff200 c05fdb80 ef09fe4c
[280122.199645] fe20: ef09fe50 ef09fe40 c0089290 c06bdf78 60080113 ffffffff
[280122.210693] r9:ef3ff200 r8:ef7b73e0 r7:ef09fe24 r6:ffffffff r5:60080113 r4:c06bdf78
[280122.216888] [<c06bdf50>] (_raw_spin_unlock_irq) from [<c0089290>] (run_timer_softirq+0x18c/0x214)
[280122.227264] [<c0089104>] (run_timer_softirq) from [<c00387ac>] (__do_softirq+0x124/0x238)
[280122.227264] r10:40000001 r9:c092a080 r8:00000001 r7:00000101 r6:ef09e000 r5:c092a084
[280122.245666] r4:000000a0
[280122.247253] [<c0038688>] (__do_softirq) from [<c0038bb0>] (irq_exit+0xb8/0x120)
[280122.247253] r10:c092a4ec r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000
[280122.264678] r4:c092341c
[280122.264678] [<c0038af8>] (irq_exit) from [<c0078db0>] (__handle_domain_irq+0x68/0xbc)
[280122.268859] r5:00000000 r4:c092341c
[280122.277282] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[280122.287261] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a8 r4:c0947f48
[280122.296966] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[280122.304962] Exception stack(0xef09ff58 to 0xef09ffa0)
[280122.307250] ff40: 00000000 ef7b7390
[280122.319152] ff60: fe600000 00000000 ef09e000 c092a49c c092236c ef09ffc8 c0967065 c0967065
[280122.327301] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028a30 c0010ca0 60080113 ffffffff
[280122.327911] r9:c0967065 r8:c0967065 r7:ef09ff8c r6:ffffffff r5:60080113 r4:c0010ca0
[280122.344970] [<c0010c78>] (arch_cpu_idle) from [<c006f720>] (default_idle_call+0x28/0x34)
[280122.347259] [<c006f6f8>] (default_idle_call) from [<c006f844>] (cpu_startup_entry+0x118/0x188)
[280122.353637] [<c006f72c>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[280122.372497] r7:c096a288 r4:c093d140
[280122.376068] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[280122.384307] r5:00000051 r4:af08406a
$
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-18 11:51 ` Ross Green
@ 2016-02-18 23:14 ` Mathieu Desnoyers
2016-02-19 3:56 ` Ross Green
2016-02-19 4:22 ` Paul E. McKenney
0 siblings, 2 replies; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-02-18 23:14 UTC (permalink / raw)
To: Ross Green, Paul E. McKenney, Thomas Gleixner, John Stultz
Cc: Peter Zijlstra, linux-kernel, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, josh, rostedt, David Howells,
Eric Dumazet, dvhart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 4648 bytes --]
----- On Feb 18, 2016, at 6:51 AM, Ross Green rgkernel@gmail.com wrote:
> On Thu, Feb 18, 2016 at 10:19 AM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
>> On Wed, Feb 17, 2016 at 12:28:29PM -0800, Paul E. McKenney wrote:
>>> On Wed, Feb 17, 2016 at 08:45:54PM +0100, Peter Zijlstra wrote:
>>> > On Wed, Feb 17, 2016 at 11:28:17AM -0800, Paul E. McKenney wrote:
>>> > > On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote:
>>> > > > On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
>>> > > > > Continued testing with the latest linux-4.5-rc3 release.
>>> > > > >
>>> > > > > Please find attached a copy of traces from dmesg:
>>> > > > >
>>> > > > > There is a lot more debug and trace data so hopefully this will shed
>>> > > > > some light on what might be happening here.
>>> > > > >
>>> > > > > My testing remains run a series of simple benchmarks, let that run to
>>> > > > > completion and then leave the system idle away with just a few daemons
>>> > > > > running.
>>> > > > >
>>> > > > > the self detected stalls in this instance turned up after a days run time.
>>> > > > > There were NO heavy artificial computational loads on the machine.
>>> > > >
>>> > > > It does indeed look quiet on that dmesg for a good long time.
>>> > > >
>>> > > > The following insanely crude not-for-mainline hack -might- be producing
>>> > > > good results in my testing. It will take some time before I can claim
>>> > > > statistically different results. But please feel free to give it a go
>>> > > > in the meantime. (Thanks to Al Viro for pointing me in this direction.)
>>> >
>>> > Your case was special in that is was hotplug triggering it, right?
>>>
>>> Yes, it has thus far only shown up with CPU hotplug enabled.
>>>
>>> > I was auditing the hotplug paths involved when I fell ill two weeks ago,
>>> > and have not really made any progress on that because of that :/
>>>
>>> I have always said that being sick is bad for one's health, but I didn't
>>> realize that it could be bad for the kernel's health as well. ;-)
>>>
>>> > I'll go have another look, I had a vague feeling for a race back then,
>>> > lets see if I can still remember how..
>>>
>>> I believe that I can -finally- get an ftrace_dump() to happen within
>>> 10-20 milliseconds of the problem, which just might be soon enough
>>> after the problem to gather some useful information. I am currently
>>> testing this theory with "ftrace trace_event=sched_waking,sched_wakeup"
>>> boot arguments on a two-hour run.
>>
>> And apparently another way to greatly reduce the probability of this
>> bug occurring is to enable ftrace. :-/
>>
>> Will try longer runs.
>>
>> Thanx, Paul
>>
>>> If this works out, what would be a useful set of trace events for me
>>> to capture?
>>>
>>> Thanx, Paul
>>
>
> Well managed to catch this one on linux-4.5-rc4.
>
> Took over 3 days and 7 hours to hit.
>
> Same test as before, boot, run a series of simple benchmarks and then
> let the machine just idle away.
>
> As before, the reported stall, AND everything keeps on running as if
> nothing had happened.
>
> I notice in the task dump for both the cpus, the swapper is running on
> both cpus.
>
> does that make any sense?
> There is around 3% of memory actually used.
>
> Anyway, please find attached a copy of the dmesg output.
>
> Hope this helps a few people fill in the missing pieces here.
What seems weird here is that all code paths in the loop
perform a WRITE_ONCE(rsp->gp_activity, jiffies), which
implies progress in each case:
- rcu_gp_init() does it,
- both branches in the QS forcing loop do it, either
through rcu_gp_fqs(), or directly,
This means the thread is really stalled, and the backtrace
shows those threads are stalled on the
ret = wait_event_interruptible_timeout(rsp->gp_wq,
rcu_gp_fqs_check_wake(rsp, &gf), j);
Since this is a *_timeout wait, for which the timeout
is bounded by "j" jiffies which is bounded by "HZ" value,
we should really not stay there too long, even if we are
not awakened by whatever is supposed to awaken us.
So unless I'm missing something, it would look like
schedule_timeout() is missing its timeout there.
Perhaps we only experience this missed timeout here
because typically there is always a wakeup coming sooner
or later on relatively busy systems. This one is idle
for quite a while.
Thoughts ?
Thanks,
Mathieu
>
> Regards,
>
> Ross Green
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
[-- Attachment #2: dmesg-4.5-rc4 --]
[-- Type: application/octet-stream, Size: 30353 bytes --]
$ uptime
22:14:35 up 3 days, 7:45, load average: 0.02, 0.06, 0.11
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.5.0-rc4-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #1 SMP PREEMPT Mon Feb 15 12:35:52 AEDT 2016
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c09662c0, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7ab000 s17984 r8192 d22976 u49152
[ 0.000000] pcpu-alloc: s17984 r8192 d22976 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027232K/1046528K available (6879K kernel code, 252K rwdata, 2156K rodata, 304K init, 297K bss, 19296K reserved, 0K cma-reserved, 260096K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08db0d4 (9037 kB)
.init : 0xc08dc000 - 0xc0928000 ( 304 kB)
.data : 0xc0928000 - 0xc09672c0 ( 253 kB)
.bss : 0xc096a000 - 0xc09b47b8 ( 298 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000854] Console: colour dummy device 80x30
[ 0.000885] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089172] pid_max: default: 32768 minimum: 301
[ 0.089233] Security Framework initialized
[ 0.089294] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089294] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089904] CPU: Testing write buffer coherency: ok
[ 0.090148] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090209] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.209167] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.209228] Brought up 2 CPUs
[ 0.209259] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.209259] CPU: All CPU(s) started in SVC mode.
[ 0.210052] devtmpfs: initialized
[ 0.227111] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.227600] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.227752] xor: measuring software checksum speed
[ 0.319152] arm4regs : 1006.000 MB/sec
[ 0.419128] 8regs : 803.600 MB/sec
[ 0.519134] 32regs : 760.800 MB/sec
[ 0.519165] xor: using function: arm4regs (1006.000 MB/sec)
[ 0.519409] pinctrl core: initialized pinctrl subsystem
[ 0.521301] NET: Registered protocol family 16
[ 0.522216] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.523925] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.525451] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.630523] OMAP GPIO hardware version 0.1
[ 0.635803] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.635803] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.636352] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.636718] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637084] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.648925] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.649261] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.655273] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.655303] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.655944] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.656158] OMAP DMA hardware revision 0.0
[ 0.879425] raid6: int32x1 gen() 103 MB/s
[ 1.049407] raid6: int32x1 xor() 83 MB/s
[ 1.219207] raid6: int32x2 gen() 134 MB/s
[ 1.389343] raid6: int32x2 xor() 99 MB/s
[ 1.559448] raid6: int32x4 gen() 145 MB/s
[ 1.729278] raid6: int32x4 xor() 97 MB/s
[ 1.899230] raid6: int32x8 gen() 160 MB/s
[ 2.069366] raid6: int32x8 xor() 94 MB/s
[ 2.069396] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.069396] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.069396] raid6: using intx1 recovery algorithm
[ 2.075439] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.149291] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.153533] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.153656] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.155761] SCSI subsystem initialized
[ 2.156036] usbcore: registered new interface driver usbfs
[ 2.156188] usbcore: registered new interface driver hub
[ 2.156311] usbcore: registered new device driver usb
[ 2.157287] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.157318] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.157379] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.157409] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.157684] Linux video capture interface: v2.00
[ 2.158416] Advanced Linux Sound Architecture Driver Initialized.
[ 2.159881] clocksource: Switched to clocksource 32k_counter
[ 2.174499] NET: Registered protocol family 2
[ 2.175109] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.175201] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.175323] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.175415] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.175476] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.175659] NET: Registered protocol family 1
[ 2.175994] RPC: Registered named UNIX socket transport module.
[ 2.176025] RPC: Registered udp transport module.
[ 2.176025] RPC: Registered tcp transport module.
[ 2.176025] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.178314] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.181396] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.204132] NFS: Registering the id_resolver key type
[ 2.204162] Key type id_resolver registered
[ 2.204162] Key type id_legacy registered
[ 2.204193] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.204223] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.205780] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.206176] fuse init (API version 7.24)
[ 2.209625] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.209716] bounce: pool size: 64 pages
[ 2.209716] io scheduler noop registered
[ 2.209747] io scheduler deadline registered
[ 2.209808] io scheduler cfq registered (default)
[ 2.210723] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.210937] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.214263] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.216156] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.216278] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.216857] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.217407] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.114410] console [ttyO2] enabled
[ 3.118560] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.129302] [drm] Initialized drm 1.1.0 20060810
[ 3.135803] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.143188] OMAP DSS rev 4.0
[ 3.146362] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.154693] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.163330] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.215209] loop: module loaded
[ 3.221374] usbcore: registered new interface driver smsc95xx
[ 3.227447] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.234344] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.259948] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.265624] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.273712] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.299926] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.306304] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.313415] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.321014] usb usb1: Product: EHCI Host Controller
[ 3.326110] usb usb1: Manufacturer: Linux 4.5.0-rc4-panda ehci_hcd
[ 3.332580] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.338165] hub 1-0:1.0: USB hub found
[ 3.342163] hub 1-0:1.0: 3 ports detected
[ 3.347045] usbcore: registered new interface driver cdc_wdm
[ 3.353149] usbcore: registered new interface driver usb-storage
[ 3.359832] i2c /dev entries driver
[ 3.363647] usbcore: registered new interface driver uvcvideo
[ 3.369659] USB Video Class driver (1.1.1)
[ 3.375152] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.382720] device-mapper: uevent: version 1.0.3
[ 3.387878] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.460937] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.466796] usbcore: registered new interface driver usbhid
[ 3.472656] usbhid: USB HID core driver
[ 3.477142] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.486450] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.497375] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.505340] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.512817] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.518493] Initializing XFRM netlink socket
[ 3.523040] NET: Registered protocol family 17
[ 3.527984] Key type dns_resolver registered
[ 3.532653] twl: not initialized
[ 3.536071] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.544677] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.553192] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.561676] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.570159] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.578643] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.587127] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.595642] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.603210] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.608947] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.616333] omap2_set_init_voltage: unable to set vdd_core
[ 3.622161] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.629425] omap2_set_init_voltage: unable to set vdd_iva
[ 3.636047] Power Management for TI OMAP4+ devices.
[ 3.641235] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.648437] ThumbEE CPU extension supported.
[ 3.653076] Registering SWP/SWPB emulation handler
[ 3.653076] SmartReflex Class3 initialized
[ 3.662567] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.684265] Btrfs loaded
[ 3.689392] dmm 4e000000.dmm: initialized all PAT entries
[ 3.710876] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.730407] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.736816] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.745361] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.767181] twl6040 0-004b: clk32k is not handled
[ 3.775054] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.781982] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.789031] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.795806] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.801757] omap_hsmmc 4809c000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.827178] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.834411] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.842651] hub 1-1:1.0: USB hub found
[ 3.846832] hub 1-1:1.0: 5 ports detected
[ 3.862304] omap_hsmmc 480d5000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.994659] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.010894] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 4.022277] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-02-15 03:29:23 UTC (1455506963)
[ 4.032470] sr_init: No PMIC hook to init smartreflex
[ 4.038116] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.046844] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.055389] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.065307] mmc1: new SDIO card at address 0001
[ 4.072692] vwl1271: disabling
[ 4.076934] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.078979] VDAC: disabling
[ 4.079437] VANA: disabling
[ 4.079864] VUSB: disabling
[ 4.080230] ALSA device list:
[ 4.080230] #0: PandaBoardES
[ 4.101013] Waiting for root device /dev/mmcblk0p2...
[ 4.106475] mmc0: new high speed SDHC card at address e624
[ 4.112945] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.147369] mmcblk0: p1 p2 p3 p4
[ 4.152496] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.220825] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.230010] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.260223] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.270416] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.286865] devtmpfs: mounted
[ 4.290008] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.297332] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.297332] Freeing unused kernel memory: 304K (c08dc000 - c0928000)
[ 4.314666] smsc95xx v1.0.4
[ 4.409088] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, 96:f9:8a:33:0d:a7
[ 4.640808] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.694946] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.840026] random: dd urandom read with 29 bits of entropy available
[ 10.340759] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 20.158081] Bluetooth: Core ver 2.21
[ 20.161895] NET: Registered protocol family 31
[ 20.167266] Bluetooth: HCI device and connection manager initialized
[ 20.174987] Bluetooth: HCI socket layer initialized
[ 20.180236] Bluetooth: L2CAP socket layer initialized
[ 20.185699] Bluetooth: SCO socket layer initialized
[ 27.729614] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 27.740997] NFSD: starting 90-second grace period (net c09607c0)
[ 45.050445] random: nonblocking pool is initialized
[ 54.592010] wlcore: loaded
[ 68.823089] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 72.377471] wlan0: authenticate with 90:f6:52:81:ee:70
[ 72.392028] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 72.399688] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 72.406982] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 72.414276] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 75.921600] wlan0: authenticate with 90:f6:52:81:ee:70
[ 75.950622] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 75.958770] wlan0: authenticated
[ 75.976959] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 75.987701] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 76.002685] wlan0: associated
[ 76.066345] wlcore: Association completed.
[ 148.034057] NFSD: Unable to end grace period: -110
[ 215.277313] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[280121.367279] INFO: rcu_preempt self-detected stall on CPU
[280121.367279] INFO: rcu_preempt self-detected stall on CPU
[280121.367309] 0-...: (1 GPs behind) idle=917/1/0 softirq=1840575/1840576 fqs=0
[280121.367309] (t=18827 jiffies g=867073 c=867072 q=2)
[280121.367309] rcu_preempt kthread starved for 18827 jiffies! g867073 c867072 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0
[280121.367340] rcu_preempt R running 0 7 2 0x00000000
[280121.367340] Backtrace:
[280121.367370] [<c06b9d94>] (__schedule) from [<c06ba2f0>] (schedule+0x54/0xc4)
[280121.367401] r10:c092a518 r9:00000001 r8:01aaaf55 r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[280121.367401] r4:ef096000
[280121.367401] [<c06ba29c>] (schedule) from [<c06bd0f0>] (schedule_timeout+0x118/0x1ac)
[280121.367431] r5:ef7b73c0 r4:ef7b73c0
[280121.367431] [<c06bcfd8>] (schedule_timeout) from [<c00860ec>] (rcu_gp_kthread+0x64c/0x99c)
[280121.367431] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[280121.367492] [<c0085aa0>] (rcu_gp_kthread) from [<c0050534>] (kthread+0xe4/0xfc)
[280121.367492] r7:c0085aa0
[280121.367523] [<c0050450>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[280121.367523] r7:00000000 r6:00000000 r5:c0050450 r4:ef0407c0
[280121.367523] Task dump for CPU 0:
[280121.367553] swapper/0 R running 0 0 0 0x00000000
[280121.367553] Backtrace:
[280121.367584] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[280121.367584] r7:c092a518 r6:800c0193 r5:00000000 r4:c092d180
[280121.367614] [<c0014164>] (show_stack) from [<c005ac68>] (sched_show_task+0xbc/0x110)
[280121.367614] [<c005abac>] (sched_show_task) from [<c005d0f8>] (dump_cpu_task+0x40/0x48)
[280121.367645] r5:c093a080 r4:00000000
[280121.367645] [<c005d0b8>] (dump_cpu_task) from [<c00828c4>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[280121.367645] r5:c093a080 r4:00000001
[280121.367675] [<c0082828>] (rcu_dump_cpu_stacks) from [<c0086d28>] (rcu_check_callbacks+0x500/0x8e4)
[280121.367706] r9:c093a080 r8:c092a628 r7:2ee89000 r6:c0926340 r5:c093a080 r4:ef7af340
[280121.367706] [<c0086828>] (rcu_check_callbacks) from [<c0089f58>] (update_process_times+0x40/0x6c)
[280121.367736] r10:c009b20c r9:00000001 r8:ef7abc4c r7:0000fec4 r6:a1351daf r5:00000000
[280121.367736] r4:c092d180
[280121.367767] [<c0089f18>] (update_process_times) from [<c009b208>] (tick_sched_handle+0x50/0x54)
[280121.367767] r5:c0929f10 r4:ef7abe40
[280121.367767] [<c009b1b8>] (tick_sched_handle) from [<c009b25c>] (tick_sched_timer+0x50/0x94)
[280121.367797] [<c009b20c>] (tick_sched_timer) from [<c008a99c>] (__hrtimer_run_queues+0x110/0x1a4)
[280121.367797] r7:00000000 r6:ef7abc40 r5:ef7abe40 r4:ef7abc00
[280121.367828] [<c008a88c>] (__hrtimer_run_queues) from [<c008b030>] (hrtimer_interrupt+0xac/0x1fc)
[280121.367828] r10:ef7abc78 r9:ef7abc98 r8:ef7abc14 r7:ef7abcb8 r6:ffffffff r5:00000003
[280121.367858] r4:ef7abc00
[280121.367858] [<c008af84>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[280121.367889] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[280121.367889] r4:00000001
[280121.367919] [<c00171d4>] (twd_handler) from [<c007d02c>] (handle_percpu_devid_irq+0x74/0x8c)
[280121.367919] r5:ef005cc0 r4:ef7b1780
[280121.367950] [<c007cfb8>] (handle_percpu_devid_irq) from [<c0078ab4>] (generic_handle_irq+0x2c/0x3c)
[280121.367950] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092341c
[280121.367980] [<c0078a88>] (generic_handle_irq) from [<c0078dac>] (__handle_domain_irq+0x64/0xbc)
[280121.367980] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[280121.368011] r9:fa241100 r8:fa240100 r7:c0929f10 r6:fa24010c r5:c092a7a8 r4:c0947f48
[280121.368011] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[280121.368011] Exception stack(0xc0929f10 to 0xc0929f58)
[280121.368041] 9f00: 00000000 ef7ab390 fe600000 00000000
[280121.368041] 9f20: c0928000 c092a49c c092236c c0929f80 c0967065 c0967065 c092a4ec c0929f6c
[280121.368072] 9f40: c0929f4c c0929f60 c0028a30 c0010ca0 600c0113 ffffffff
[280121.368072] r9:c0967065 r8:c0967065 r7:c0929f44 r6:ffffffff r5:600c0113 r4:c0010ca0
[280121.368103] [<c0010c78>] (arch_cpu_idle) from [<c006f720>] (default_idle_call+0x28/0x34)
[280121.368103] [<c006f6f8>] (default_idle_call) from [<c006f844>] (cpu_startup_entry+0x118/0x188)
[280121.368133] [<c006f72c>] (cpu_startup_entry) from [<c06b96c8>] (rest_init+0x90/0x94)
[280121.368133] r7:ffffffff r4:00000002
[280121.368133] [<c06b9638>] (rest_init) from [<c08dcd0c>] (start_kernel+0x390/0x39c)
[280121.368133] r5:c096a000 r4:00000000
[280121.368194] [<c08dc97c>] (start_kernel) from [<8000807c>] (0x8000807c)
[280121.368194] Task dump for CPU 1:
[280121.368225] swapper/1 R running 0 0 1 0x00000002
[280121.368225] Backtrace:
[280121.368225] Backtrace aborted due to bad frame pointer <ef09ff9c>
[280121.833038] 1-...: (2 ticks this GP) idle=ded/2/0 softirq=3193168/3193168 fqs=0
[280121.833038] (t=18874 jiffies g=867073 c=867072 q=5)
[280121.845672] rcu_preempt kthread starved for 18875 jiffies! g867073 c867072 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0
[280121.845672] rcu_preempt R running 0 7 2 0x00000000
[280121.864105] Backtrace:
[280121.864105] [<c06b9d94>] (__schedule) from [<c06ba2f0>] (schedule+0x54/0xc4)
[280121.874359] r10:c092a518 r9:00000001 r8:01aaaf55 r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[280121.874359] r4:ef096000
[280121.883331] [<c06ba29c>] (schedule) from [<c06bd0f0>] (schedule_timeout+0x118/0x1ac)
[280121.887329] r5:ef7b73c0 r4:ef7b73c0
[280121.887329] [<c06bcfd8>] (schedule_timeout) from [<c00860ec>] (rcu_gp_kthread+0x64c/0x99c)
[280121.897735] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[280121.907257] [<c0085aa0>] (rcu_gp_kthread) from [<c0050534>] (kthread+0xe4/0xfc)
[280121.921600] r7:c0085aa0
[280121.921600] [<c0050450>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[280121.921600] r7:00000000 r6:00000000 r5:c0050450 r4:ef0407c0
[280121.932891] Task dump for CPU 1:
[280121.941711] swapper/1 R running 0 0 1 0x00000002
[280121.947265] Backtrace:
[280121.947265] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[280121.947265] r7:c092a518 r6:80080193 r5:00000001 r4:ef077480
[280121.965454] [<c0014164>] (show_stack) from [<c005ac68>] (sched_show_task+0xbc/0x110)
[280121.969024] [<c005abac>] (sched_show_task) from [<c005d0f8>] (dump_cpu_task+0x40/0x48)
[280121.982208] r5:c093a080 r4:00000001
[280121.982208] [<c005d0b8>] (dump_cpu_task) from [<c00828c4>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[280121.990051] r5:c093a080 r4:00000002
[280121.990051] [<c0082828>] (rcu_dump_cpu_stacks) from [<c0086d28>] (rcu_check_callbacks+0x500/0x8e4)
[280122.008392] r9:c093a080 r8:c092a628 r7:2ee95000 r6:c0926340 r5:c093a080 r4:ef7bb340
[280122.010040] [<c0086828>] (rcu_check_callbacks) from [<c0089f58>] (update_process_times+0x40/0x6c)
[280122.017761] r10:c009b20c r9:00000001 r8:ef7b7c4c r7:0000fec4 r6:a1b4b4e7 r5:00000000
[280122.027770] r4:ef077480
[280122.037261] [<c0089f18>] (update_process_times) from [<c009b208>] (tick_sched_handle+0x50/0x54)
[280122.040313] r5:ef09fdf0 r4:ef7b7e40
[280122.050567] [<c009b1b8>] (tick_sched_handle) from [<c009b25c>] (tick_sched_timer+0x50/0x94)
[280122.050567] [<c009b20c>] (tick_sched_timer) from [<c008a99c>] (__hrtimer_run_queues+0x110/0x1a4)
[280122.063934] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[280122.070587] [<c008a88c>] (__hrtimer_run_queues) from [<c008b030>] (hrtimer_interrupt+0xac/0x1fc)
[280122.077270] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[280122.077270] r4:ef7b7c00
[280122.077270] [<c008af84>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[280122.097229] r10:c05fdb80 r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[280122.107330] r4:00000001
[280122.112884] [<c00171d4>] (twd_handler) from [<c007d02c>] (handle_percpu_devid_irq+0x74/0x8c)
[280122.118530] r5:ef005cc0 r4:ef7bd780
[280122.118530] [<c007cfb8>] (handle_percpu_devid_irq) from [<c0078ab4>] (generic_handle_irq+0x2c/0x3c)
[280122.137786] r9:fa241100 r8:ef008000 r7:00000001 r6:ef09ff58 r5:00000000 r4:c092341c
[280122.140899] [<c0078a88>] (generic_handle_irq) from [<c0078dac>] (__handle_domain_irq+0x64/0xbc)
[280122.153594] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[280122.163665] r9:fa241100 r8:fa240100 r7:ef09fdf0 r6:fa24010c r5:c092a7a8 r4:c0947f48
[280122.167266] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[280122.180664] Exception stack(0xef09fdf0 to 0xef09fe38)
[280122.180664] fde0: ef7b73c0 00000005 ef09fe5c 000053b3
[280122.194854] fe00: ef3ff230 ef7b73c0 00000000 00000200 ef7b73e0 ef3ff200 c05fdb80 ef09fe4c
[280122.199645] fe20: ef09fe50 ef09fe40 c0089290 c06bdf78 60080113 ffffffff
[280122.210693] r9:ef3ff200 r8:ef7b73e0 r7:ef09fe24 r6:ffffffff r5:60080113 r4:c06bdf78
[280122.216888] [<c06bdf50>] (_raw_spin_unlock_irq) from [<c0089290>] (run_timer_softirq+0x18c/0x214)
[280122.227264] [<c0089104>] (run_timer_softirq) from [<c00387ac>] (__do_softirq+0x124/0x238)
[280122.227264] r10:40000001 r9:c092a080 r8:00000001 r7:00000101 r6:ef09e000 r5:c092a084
[280122.245666] r4:000000a0
[280122.247253] [<c0038688>] (__do_softirq) from [<c0038bb0>] (irq_exit+0xb8/0x120)
[280122.247253] r10:c092a4ec r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000
[280122.264678] r4:c092341c
[280122.264678] [<c0038af8>] (irq_exit) from [<c0078db0>] (__handle_domain_irq+0x68/0xbc)
[280122.268859] r5:00000000 r4:c092341c
[280122.277282] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[280122.287261] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a8 r4:c0947f48
[280122.296966] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[280122.304962] Exception stack(0xef09ff58 to 0xef09ffa0)
[280122.307250] ff40: 00000000 ef7b7390
[280122.319152] ff60: fe600000 00000000 ef09e000 c092a49c c092236c ef09ffc8 c0967065 c0967065
[280122.327301] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028a30 c0010ca0 60080113 ffffffff
[280122.327911] r9:c0967065 r8:c0967065 r7:ef09ff8c r6:ffffffff r5:60080113 r4:c0010ca0
[280122.344970] [<c0010c78>] (arch_cpu_idle) from [<c006f720>] (default_idle_call+0x28/0x34)
[280122.347259] [<c006f6f8>] (default_idle_call) from [<c006f844>] (cpu_startup_entry+0x118/0x188)
[280122.353637] [<c006f72c>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[280122.372497] r7:c096a288 r4:c093d140
[280122.376068] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[280122.384307] r5:00000051 r4:af08406a
$
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-18 23:14 ` Mathieu Desnoyers
@ 2016-02-19 3:56 ` Ross Green
2016-02-19 4:13 ` John Stultz
2016-02-19 4:22 ` Paul E. McKenney
1 sibling, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-02-19 3:56 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Paul E. McKenney, Thomas Gleixner, John Stultz, Peter Zijlstra,
linux-kernel, Ingo Molnar, Lai Jiangshan, dipankar,
Andrew Morton, josh, rostedt, David Howells, Eric Dumazet,
dvhart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar
[-- Attachment #1: Type: text/plain, Size: 5806 bytes --]
On Fri, Feb 19, 2016 at 10:14 AM, Mathieu Desnoyers
<mathieu.desnoyers@efficios.com> wrote:
> ----- On Feb 18, 2016, at 6:51 AM, Ross Green rgkernel@gmail.com wrote:
>
>> On Thu, Feb 18, 2016 at 10:19 AM, Paul E. McKenney
>> <paulmck@linux.vnet.ibm.com> wrote:
>>> On Wed, Feb 17, 2016 at 12:28:29PM -0800, Paul E. McKenney wrote:
>>>> On Wed, Feb 17, 2016 at 08:45:54PM +0100, Peter Zijlstra wrote:
>>>> > On Wed, Feb 17, 2016 at 11:28:17AM -0800, Paul E. McKenney wrote:
>>>> > > On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote:
>>>> > > > On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
>>>> > > > > Continued testing with the latest linux-4.5-rc3 release.
>>>> > > > >
>>>> > > > > Please find attached a copy of traces from dmesg:
>>>> > > > >
>>>> > > > > There is a lot more debug and trace data so hopefully this will shed
>>>> > > > > some light on what might be happening here.
>>>> > > > >
>>>> > > > > My testing remains run a series of simple benchmarks, let that run to
>>>> > > > > completion and then leave the system idle away with just a few daemons
>>>> > > > > running.
>>>> > > > >
>>>> > > > > the self detected stalls in this instance turned up after a days run time.
>>>> > > > > There were NO heavy artificial computational loads on the machine.
>>>> > > >
>>>> > > > It does indeed look quiet on that dmesg for a good long time.
>>>> > > >
>>>> > > > The following insanely crude not-for-mainline hack -might- be producing
>>>> > > > good results in my testing. It will take some time before I can claim
>>>> > > > statistically different results. But please feel free to give it a go
>>>> > > > in the meantime. (Thanks to Al Viro for pointing me in this direction.)
>>>> >
>>>> > Your case was special in that is was hotplug triggering it, right?
>>>>
>>>> Yes, it has thus far only shown up with CPU hotplug enabled.
>>>>
>>>> > I was auditing the hotplug paths involved when I fell ill two weeks ago,
>>>> > and have not really made any progress on that because of that :/
>>>>
>>>> I have always said that being sick is bad for one's health, but I didn't
>>>> realize that it could be bad for the kernel's health as well. ;-)
>>>>
>>>> > I'll go have another look, I had a vague feeling for a race back then,
>>>> > lets see if I can still remember how..
>>>>
>>>> I believe that I can -finally- get an ftrace_dump() to happen within
>>>> 10-20 milliseconds of the problem, which just might be soon enough
>>>> after the problem to gather some useful information. I am currently
>>>> testing this theory with "ftrace trace_event=sched_waking,sched_wakeup"
>>>> boot arguments on a two-hour run.
>>>
>>> And apparently another way to greatly reduce the probability of this
>>> bug occurring is to enable ftrace. :-/
>>>
>>> Will try longer runs.
>>>
>>> Thanx, Paul
>>>
>>>> If this works out, what would be a useful set of trace events for me
>>>> to capture?
>>>>
>>>> Thanx, Paul
>>>
>>
>> Well managed to catch this one on linux-4.5-rc4.
>>
>> Took over 3 days and 7 hours to hit.
>>
>> Same test as before, boot, run a series of simple benchmarks and then
>> let the machine just idle away.
>>
>> As before, the reported stall, AND everything keeps on running as if
>> nothing had happened.
>>
>> I notice in the task dump for both the cpus, the swapper is running on
>> both cpus.
>>
>> does that make any sense?
>> There is around 3% of memory actually used.
>>
>> Anyway, please find attached a copy of the dmesg output.
>>
>> Hope this helps a few people fill in the missing pieces here.
>
> What seems weird here is that all code paths in the loop
> perform a WRITE_ONCE(rsp->gp_activity, jiffies), which
> implies progress in each case:
>
> - rcu_gp_init() does it,
> - both branches in the QS forcing loop do it, either
> through rcu_gp_fqs(), or directly,
>
> This means the thread is really stalled, and the backtrace
> shows those threads are stalled on the
>
> ret = wait_event_interruptible_timeout(rsp->gp_wq,
> rcu_gp_fqs_check_wake(rsp, &gf), j);
>
> Since this is a *_timeout wait, for which the timeout
> is bounded by "j" jiffies which is bounded by "HZ" value,
> we should really not stay there too long, even if we are
> not awakened by whatever is supposed to awaken us.
>
> So unless I'm missing something, it would look like
> schedule_timeout() is missing its timeout there.
>
> Perhaps we only experience this missed timeout here
> because typically there is always a wakeup coming sooner
> or later on relatively busy systems. This one is idle
> for quite a while.
>
> Thoughts ?
>
> Thanks,
>
> Mathieu
>
>
>>
>> Regards,
>>
>> Ross Green
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
Well a bonus extra!
Kept everything running and there was another stall.
So i have included the demsg output for perusal.
Just to clear things up there is no hotplug involved in this system.
It is a standard Pandaboard ES Ti4460 two processor system.
I use this for testing as a generic armv7 processor, plus can keep it
just running along for testing for a long time. the system has a total
of 23-25 process running on average. Mainly standard daemons. There is
certainly no heavy processing going on. I run a series of benchmarks
that are cpu intensive for the first 20 miinutes after boot and then
just leave it idle away. checking every so often to see how it has
gone.
As mentioned I have observed these stalls going back to 3.17 kernel.
It will often take up to a week to record such a stall. I will
typically test every new release kernel, so the -rc? series will get
around a weeks testing.
Regards,
Ross Green
[-- Attachment #2: dmesg-4.5-rc4-2 --]
[-- Type: application/octet-stream, Size: 35631 bytes --]
$ uptime
13:53:01 up 3 days, 23:23, load average: 0.09, 0.09, 0.12
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.5.0-rc4-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #1 SMP PREEMPT Mon Feb 15 12:35:52 AEDT 2016
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c09662c0, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7ab000 s17984 r8192 d22976 u49152
[ 0.000000] pcpu-alloc: s17984 r8192 d22976 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027232K/1046528K available (6879K kernel code, 252K rwdata, 2156K rodata, 304K init, 297K bss, 19296K reserved, 0K cma-reserved, 260096K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08db0d4 (9037 kB)
.init : 0xc08dc000 - 0xc0928000 ( 304 kB)
.data : 0xc0928000 - 0xc09672c0 ( 253 kB)
.bss : 0xc096a000 - 0xc09b47b8 ( 298 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000854] Console: colour dummy device 80x30
[ 0.000885] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089172] pid_max: default: 32768 minimum: 301
[ 0.089233] Security Framework initialized
[ 0.089294] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089294] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089904] CPU: Testing write buffer coherency: ok
[ 0.090148] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090209] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.209167] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.209228] Brought up 2 CPUs
[ 0.209259] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.209259] CPU: All CPU(s) started in SVC mode.
[ 0.210052] devtmpfs: initialized
[ 0.227111] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.227600] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.227752] xor: measuring software checksum speed
[ 0.319152] arm4regs : 1006.000 MB/sec
[ 0.419128] 8regs : 803.600 MB/sec
[ 0.519134] 32regs : 760.800 MB/sec
[ 0.519165] xor: using function: arm4regs (1006.000 MB/sec)
[ 0.519409] pinctrl core: initialized pinctrl subsystem
[ 0.521301] NET: Registered protocol family 16
[ 0.522216] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.523925] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.525451] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.630523] OMAP GPIO hardware version 0.1
[ 0.635803] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.635803] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.636352] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.636718] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637084] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.648925] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.649261] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.655273] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.655303] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.655944] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.656158] OMAP DMA hardware revision 0.0
[ 0.879425] raid6: int32x1 gen() 103 MB/s
[ 1.049407] raid6: int32x1 xor() 83 MB/s
[ 1.219207] raid6: int32x2 gen() 134 MB/s
[ 1.389343] raid6: int32x2 xor() 99 MB/s
[ 1.559448] raid6: int32x4 gen() 145 MB/s
[ 1.729278] raid6: int32x4 xor() 97 MB/s
[ 1.899230] raid6: int32x8 gen() 160 MB/s
[ 2.069366] raid6: int32x8 xor() 94 MB/s
[ 2.069396] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.069396] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.069396] raid6: using intx1 recovery algorithm
[ 2.075439] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.149291] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.153533] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.153656] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.155761] SCSI subsystem initialized
[ 2.156036] usbcore: registered new interface driver usbfs
[ 2.156188] usbcore: registered new interface driver hub
[ 2.156311] usbcore: registered new device driver usb
[ 2.157287] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.157318] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.157379] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.157409] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.157684] Linux video capture interface: v2.00
[ 2.158416] Advanced Linux Sound Architecture Driver Initialized.
[ 2.159881] clocksource: Switched to clocksource 32k_counter
[ 2.174499] NET: Registered protocol family 2
[ 2.175109] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.175201] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.175323] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.175415] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.175476] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.175659] NET: Registered protocol family 1
[ 2.175994] RPC: Registered named UNIX socket transport module.
[ 2.176025] RPC: Registered udp transport module.
[ 2.176025] RPC: Registered tcp transport module.
[ 2.176025] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.178314] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.181396] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.204132] NFS: Registering the id_resolver key type
[ 2.204162] Key type id_resolver registered
[ 2.204162] Key type id_legacy registered
[ 2.204193] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.204223] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.205780] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.206176] fuse init (API version 7.24)
[ 2.209625] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.209716] bounce: pool size: 64 pages
[ 2.209716] io scheduler noop registered
[ 2.209747] io scheduler deadline registered
[ 2.209808] io scheduler cfq registered (default)
[ 2.210723] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.210937] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.214263] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.216156] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.216278] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.216857] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.217407] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.114410] console [ttyO2] enabled
[ 3.118560] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.129302] [drm] Initialized drm 1.1.0 20060810
[ 3.135803] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.143188] OMAP DSS rev 4.0
[ 3.146362] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.154693] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.163330] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.215209] loop: module loaded
[ 3.221374] usbcore: registered new interface driver smsc95xx
[ 3.227447] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.234344] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.259948] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.265624] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.273712] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.299926] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.306304] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.313415] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.321014] usb usb1: Product: EHCI Host Controller
[ 3.326110] usb usb1: Manufacturer: Linux 4.5.0-rc4-panda ehci_hcd
[ 3.332580] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.338165] hub 1-0:1.0: USB hub found
[ 3.342163] hub 1-0:1.0: 3 ports detected
[ 3.347045] usbcore: registered new interface driver cdc_wdm
[ 3.353149] usbcore: registered new interface driver usb-storage
[ 3.359832] i2c /dev entries driver
[ 3.363647] usbcore: registered new interface driver uvcvideo
[ 3.369659] USB Video Class driver (1.1.1)
[ 3.375152] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.382720] device-mapper: uevent: version 1.0.3
[ 3.387878] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.460937] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.466796] usbcore: registered new interface driver usbhid
[ 3.472656] usbhid: USB HID core driver
[ 3.477142] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.486450] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.497375] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.505340] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.512817] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.518493] Initializing XFRM netlink socket
[ 3.523040] NET: Registered protocol family 17
[ 3.527984] Key type dns_resolver registered
[ 3.532653] twl: not initialized
[ 3.536071] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.544677] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.553192] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.561676] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.570159] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.578643] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.587127] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.595642] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.603210] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.608947] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.616333] omap2_set_init_voltage: unable to set vdd_core
[ 3.622161] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.629425] omap2_set_init_voltage: unable to set vdd_iva
[ 3.636047] Power Management for TI OMAP4+ devices.
[ 3.641235] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.648437] ThumbEE CPU extension supported.
[ 3.653076] Registering SWP/SWPB emulation handler
[ 3.653076] SmartReflex Class3 initialized
[ 3.662567] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.684265] Btrfs loaded
[ 3.689392] dmm 4e000000.dmm: initialized all PAT entries
[ 3.710876] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.730407] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.736816] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.745361] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.767181] twl6040 0-004b: clk32k is not handled
[ 3.775054] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.781982] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.789031] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.795806] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.801757] omap_hsmmc 4809c000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.827178] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.834411] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.842651] hub 1-1:1.0: USB hub found
[ 3.846832] hub 1-1:1.0: 5 ports detected
[ 3.862304] omap_hsmmc 480d5000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.994659] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.010894] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 4.022277] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-02-15 03:29:23 UTC (1455506963)
[ 4.032470] sr_init: No PMIC hook to init smartreflex
[ 4.038116] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.046844] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.055389] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.065307] mmc1: new SDIO card at address 0001
[ 4.072692] vwl1271: disabling
[ 4.076934] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.078979] VDAC: disabling
[ 4.079437] VANA: disabling
[ 4.079864] VUSB: disabling
[ 4.080230] ALSA device list:
[ 4.080230] #0: PandaBoardES
[ 4.101013] Waiting for root device /dev/mmcblk0p2...
[ 4.106475] mmc0: new high speed SDHC card at address e624
[ 4.112945] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.147369] mmcblk0: p1 p2 p3 p4
[ 4.152496] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.220825] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.230010] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.260223] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.270416] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.286865] devtmpfs: mounted
[ 4.290008] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.297332] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.297332] Freeing unused kernel memory: 304K (c08dc000 - c0928000)
[ 4.314666] smsc95xx v1.0.4
[ 4.409088] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, 96:f9:8a:33:0d:a7
[ 4.640808] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.694946] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.840026] random: dd urandom read with 29 bits of entropy available
[ 10.340759] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 20.158081] Bluetooth: Core ver 2.21
[ 20.161895] NET: Registered protocol family 31
[ 20.167266] Bluetooth: HCI device and connection manager initialized
[ 20.174987] Bluetooth: HCI socket layer initialized
[ 20.180236] Bluetooth: L2CAP socket layer initialized
[ 20.185699] Bluetooth: SCO socket layer initialized
[ 27.729614] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 27.740997] NFSD: starting 90-second grace period (net c09607c0)
[ 45.050445] random: nonblocking pool is initialized
[ 54.592010] wlcore: loaded
[ 68.823089] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 72.377471] wlan0: authenticate with 90:f6:52:81:ee:70
[ 72.392028] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 72.399688] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 72.406982] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 72.414276] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 75.921600] wlan0: authenticate with 90:f6:52:81:ee:70
[ 75.950622] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 75.958770] wlan0: authenticated
[ 75.976959] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 75.987701] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 76.002685] wlan0: associated
[ 76.066345] wlcore: Association completed.
[ 148.034057] NFSD: Unable to end grace period: -110
[ 215.277313] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[280121.367279] INFO: rcu_preempt self-detected stall on CPU
[280121.367279] INFO: rcu_preempt self-detected stall on CPU
[280121.367309] 0-...: (1 GPs behind) idle=917/1/0 softirq=1840575/1840576 fqs=0
[280121.367309] (t=18827 jiffies g=867073 c=867072 q=2)
[280121.367309] rcu_preempt kthread starved for 18827 jiffies! g867073 c867072 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0
[280121.367340] rcu_preempt R running 0 7 2 0x00000000
[280121.367340] Backtrace:
[280121.367370] [<c06b9d94>] (__schedule) from [<c06ba2f0>] (schedule+0x54/0xc4)
[280121.367401] r10:c092a518 r9:00000001 r8:01aaaf55 r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[280121.367401] r4:ef096000
[280121.367401] [<c06ba29c>] (schedule) from [<c06bd0f0>] (schedule_timeout+0x118/0x1ac)
[280121.367431] r5:ef7b73c0 r4:ef7b73c0
[280121.367431] [<c06bcfd8>] (schedule_timeout) from [<c00860ec>] (rcu_gp_kthread+0x64c/0x99c)
[280121.367431] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[280121.367492] [<c0085aa0>] (rcu_gp_kthread) from [<c0050534>] (kthread+0xe4/0xfc)
[280121.367492] r7:c0085aa0
[280121.367523] [<c0050450>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[280121.367523] r7:00000000 r6:00000000 r5:c0050450 r4:ef0407c0
[280121.367523] Task dump for CPU 0:
[280121.367553] swapper/0 R running 0 0 0 0x00000000
[280121.367553] Backtrace:
[280121.367584] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[280121.367584] r7:c092a518 r6:800c0193 r5:00000000 r4:c092d180
[280121.367614] [<c0014164>] (show_stack) from [<c005ac68>] (sched_show_task+0xbc/0x110)
[280121.367614] [<c005abac>] (sched_show_task) from [<c005d0f8>] (dump_cpu_task+0x40/0x48)
[280121.367645] r5:c093a080 r4:00000000
[280121.367645] [<c005d0b8>] (dump_cpu_task) from [<c00828c4>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[280121.367645] r5:c093a080 r4:00000001
[280121.367675] [<c0082828>] (rcu_dump_cpu_stacks) from [<c0086d28>] (rcu_check_callbacks+0x500/0x8e4)
[280121.367706] r9:c093a080 r8:c092a628 r7:2ee89000 r6:c0926340 r5:c093a080 r4:ef7af340
[280121.367706] [<c0086828>] (rcu_check_callbacks) from [<c0089f58>] (update_process_times+0x40/0x6c)
[280121.367736] r10:c009b20c r9:00000001 r8:ef7abc4c r7:0000fec4 r6:a1351daf r5:00000000
[280121.367736] r4:c092d180
[280121.367767] [<c0089f18>] (update_process_times) from [<c009b208>] (tick_sched_handle+0x50/0x54)
[280121.367767] r5:c0929f10 r4:ef7abe40
[280121.367767] [<c009b1b8>] (tick_sched_handle) from [<c009b25c>] (tick_sched_timer+0x50/0x94)
[280121.367797] [<c009b20c>] (tick_sched_timer) from [<c008a99c>] (__hrtimer_run_queues+0x110/0x1a4)
[280121.367797] r7:00000000 r6:ef7abc40 r5:ef7abe40 r4:ef7abc00
[280121.367828] [<c008a88c>] (__hrtimer_run_queues) from [<c008b030>] (hrtimer_interrupt+0xac/0x1fc)
[280121.367828] r10:ef7abc78 r9:ef7abc98 r8:ef7abc14 r7:ef7abcb8 r6:ffffffff r5:00000003
[280121.367858] r4:ef7abc00
[280121.367858] [<c008af84>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[280121.367889] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[280121.367889] r4:00000001
[280121.367919] [<c00171d4>] (twd_handler) from [<c007d02c>] (handle_percpu_devid_irq+0x74/0x8c)
[280121.367919] r5:ef005cc0 r4:ef7b1780
[280121.367950] [<c007cfb8>] (handle_percpu_devid_irq) from [<c0078ab4>] (generic_handle_irq+0x2c/0x3c)
[280121.367950] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092341c
[280121.367980] [<c0078a88>] (generic_handle_irq) from [<c0078dac>] (__handle_domain_irq+0x64/0xbc)
[280121.367980] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[280121.368011] r9:fa241100 r8:fa240100 r7:c0929f10 r6:fa24010c r5:c092a7a8 r4:c0947f48
[280121.368011] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[280121.368011] Exception stack(0xc0929f10 to 0xc0929f58)
[280121.368041] 9f00: 00000000 ef7ab390 fe600000 00000000
[280121.368041] 9f20: c0928000 c092a49c c092236c c0929f80 c0967065 c0967065 c092a4ec c0929f6c
[280121.368072] 9f40: c0929f4c c0929f60 c0028a30 c0010ca0 600c0113 ffffffff
[280121.368072] r9:c0967065 r8:c0967065 r7:c0929f44 r6:ffffffff r5:600c0113 r4:c0010ca0
[280121.368103] [<c0010c78>] (arch_cpu_idle) from [<c006f720>] (default_idle_call+0x28/0x34)
[280121.368103] [<c006f6f8>] (default_idle_call) from [<c006f844>] (cpu_startup_entry+0x118/0x188)
[280121.368133] [<c006f72c>] (cpu_startup_entry) from [<c06b96c8>] (rest_init+0x90/0x94)
[280121.368133] r7:ffffffff r4:00000002
[280121.368133] [<c06b9638>] (rest_init) from [<c08dcd0c>] (start_kernel+0x390/0x39c)
[280121.368133] r5:c096a000 r4:00000000
[280121.368194] [<c08dc97c>] (start_kernel) from [<8000807c>] (0x8000807c)
[280121.368194] Task dump for CPU 1:
[280121.368225] swapper/1 R running 0 0 1 0x00000002
[280121.368225] Backtrace:
[280121.368225] Backtrace aborted due to bad frame pointer <ef09ff9c>
[280121.833038] 1-...: (2 ticks this GP) idle=ded/2/0 softirq=3193168/3193168 fqs=0
[280121.833038] (t=18874 jiffies g=867073 c=867072 q=5)
[280121.845672] rcu_preempt kthread starved for 18875 jiffies! g867073 c867072 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0
[280121.845672] rcu_preempt R running 0 7 2 0x00000000
[280121.864105] Backtrace:
[280121.864105] [<c06b9d94>] (__schedule) from [<c06ba2f0>] (schedule+0x54/0xc4)
[280121.874359] r10:c092a518 r9:00000001 r8:01aaaf55 r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[280121.874359] r4:ef096000
[280121.883331] [<c06ba29c>] (schedule) from [<c06bd0f0>] (schedule_timeout+0x118/0x1ac)
[280121.887329] r5:ef7b73c0 r4:ef7b73c0
[280121.887329] [<c06bcfd8>] (schedule_timeout) from [<c00860ec>] (rcu_gp_kthread+0x64c/0x99c)
[280121.897735] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[280121.907257] [<c0085aa0>] (rcu_gp_kthread) from [<c0050534>] (kthread+0xe4/0xfc)
[280121.921600] r7:c0085aa0
[280121.921600] [<c0050450>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[280121.921600] r7:00000000 r6:00000000 r5:c0050450 r4:ef0407c0
[280121.932891] Task dump for CPU 1:
[280121.941711] swapper/1 R running 0 0 1 0x00000002
[280121.947265] Backtrace:
[280121.947265] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[280121.947265] r7:c092a518 r6:80080193 r5:00000001 r4:ef077480
[280121.965454] [<c0014164>] (show_stack) from [<c005ac68>] (sched_show_task+0xbc/0x110)
[280121.969024] [<c005abac>] (sched_show_task) from [<c005d0f8>] (dump_cpu_task+0x40/0x48)
[280121.982208] r5:c093a080 r4:00000001
[280121.982208] [<c005d0b8>] (dump_cpu_task) from [<c00828c4>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[280121.990051] r5:c093a080 r4:00000002
[280121.990051] [<c0082828>] (rcu_dump_cpu_stacks) from [<c0086d28>] (rcu_check_callbacks+0x500/0x8e4)
[280122.008392] r9:c093a080 r8:c092a628 r7:2ee95000 r6:c0926340 r5:c093a080 r4:ef7bb340
[280122.010040] [<c0086828>] (rcu_check_callbacks) from [<c0089f58>] (update_process_times+0x40/0x6c)
[280122.017761] r10:c009b20c r9:00000001 r8:ef7b7c4c r7:0000fec4 r6:a1b4b4e7 r5:00000000
[280122.027770] r4:ef077480
[280122.037261] [<c0089f18>] (update_process_times) from [<c009b208>] (tick_sched_handle+0x50/0x54)
[280122.040313] r5:ef09fdf0 r4:ef7b7e40
[280122.050567] [<c009b1b8>] (tick_sched_handle) from [<c009b25c>] (tick_sched_timer+0x50/0x94)
[280122.050567] [<c009b20c>] (tick_sched_timer) from [<c008a99c>] (__hrtimer_run_queues+0x110/0x1a4)
[280122.063934] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[280122.070587] [<c008a88c>] (__hrtimer_run_queues) from [<c008b030>] (hrtimer_interrupt+0xac/0x1fc)
[280122.077270] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[280122.077270] r4:ef7b7c00
[280122.077270] [<c008af84>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[280122.097229] r10:c05fdb80 r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[280122.107330] r4:00000001
[280122.112884] [<c00171d4>] (twd_handler) from [<c007d02c>] (handle_percpu_devid_irq+0x74/0x8c)
[280122.118530] r5:ef005cc0 r4:ef7bd780
[280122.118530] [<c007cfb8>] (handle_percpu_devid_irq) from [<c0078ab4>] (generic_handle_irq+0x2c/0x3c)
[280122.137786] r9:fa241100 r8:ef008000 r7:00000001 r6:ef09ff58 r5:00000000 r4:c092341c
[280122.140899] [<c0078a88>] (generic_handle_irq) from [<c0078dac>] (__handle_domain_irq+0x64/0xbc)
[280122.153594] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[280122.163665] r9:fa241100 r8:fa240100 r7:ef09fdf0 r6:fa24010c r5:c092a7a8 r4:c0947f48
[280122.167266] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[280122.180664] Exception stack(0xef09fdf0 to 0xef09fe38)
[280122.180664] fde0: ef7b73c0 00000005 ef09fe5c 000053b3
[280122.194854] fe00: ef3ff230 ef7b73c0 00000000 00000200 ef7b73e0 ef3ff200 c05fdb80 ef09fe4c
[280122.199645] fe20: ef09fe50 ef09fe40 c0089290 c06bdf78 60080113 ffffffff
[280122.210693] r9:ef3ff200 r8:ef7b73e0 r7:ef09fe24 r6:ffffffff r5:60080113 r4:c06bdf78
[280122.216888] [<c06bdf50>] (_raw_spin_unlock_irq) from [<c0089290>] (run_timer_softirq+0x18c/0x214)
[280122.227264] [<c0089104>] (run_timer_softirq) from [<c00387ac>] (__do_softirq+0x124/0x238)
[280122.227264] r10:40000001 r9:c092a080 r8:00000001 r7:00000101 r6:ef09e000 r5:c092a084
[280122.245666] r4:000000a0
[280122.247253] [<c0038688>] (__do_softirq) from [<c0038bb0>] (irq_exit+0xb8/0x120)
[280122.247253] r10:c092a4ec r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000
[280122.264678] r4:c092341c
[280122.264678] [<c0038af8>] (irq_exit) from [<c0078db0>] (__handle_domain_irq+0x68/0xbc)
[280122.268859] r5:00000000 r4:c092341c
[280122.277282] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[280122.287261] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a8 r4:c0947f48
[280122.296966] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[280122.304962] Exception stack(0xef09ff58 to 0xef09ffa0)
[280122.307250] ff40: 00000000 ef7b7390
[280122.319152] ff60: fe600000 00000000 ef09e000 c092a49c c092236c ef09ffc8 c0967065 c0967065
[280122.327301] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028a30 c0010ca0 60080113 ffffffff
[280122.327911] r9:c0967065 r8:c0967065 r7:ef09ff8c r6:ffffffff r5:60080113 r4:c0010ca0
[280122.344970] [<c0010c78>] (arch_cpu_idle) from [<c006f720>] (default_idle_call+0x28/0x34)
[280122.347259] [<c006f6f8>] (default_idle_call) from [<c006f844>] (cpu_startup_entry+0x118/0x188)
[280122.353637] [<c006f72c>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[280122.372497] r7:c096a288 r4:c093d140
[280122.376068] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[280122.384307] r5:00000051 r4:af08406a
[332254.243560] INFO: rcu_preempt self-detected stall on CPU
[332254.249298] 1-...: (1 ticks this GP) idle=ad7/1/0 softirq=3767297/3767297 fqs=0
[332254.250396] INFO: rcu_preempt detected stalls on CPUs/tasks:
[332254.250427] 1-...: (1 ticks this GP) idle=ad7/1/0 softirq=3767297/3767297 fqs=0
[332254.250427] (detected by 0, t=8688 jiffies, g=1027929, c=1027928, q=10)
[332254.250427] Task dump for CPU 1:
[332254.250457] swapper/1 R running 0 0 1 0x00000000
[332254.250457] Backtrace:
[332254.250457] Backtrace aborted due to bad frame pointer <ef09ff9c>
[332254.250488] rcu_preempt kthread starved for 8688 jiffies! g1027929 c1027928 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[332254.250488] rcu_preempt S c06b9f60 0 7 2 0x00000000
[332254.250488] Backtrace:
[332254.250518] [<c06b9d94>] (__schedule) from [<c06ba2f0>] (schedule+0x54/0xc4)
[332254.250549] r10:c092a518 r9:00000001 r8:01fa634a r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[332254.250549] r4:ef096000
[332254.250549] [<c06ba29c>] (schedule) from [<c06bd0f0>] (schedule_timeout+0x118/0x1ac)
[332254.250579] r5:ef7b73c0 r4:ef7b73c0
[332254.250579] [<c06bcfd8>] (schedule_timeout) from [<c00860ec>] (rcu_gp_kthread+0x64c/0x99c)
[332254.250579] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[332254.250640] [<c0085aa0>] (rcu_gp_kthread) from [<c0050534>] (kthread+0xe4/0xfc)
[332254.250640] r7:c0085aa0
[332254.250671] [<c0050450>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[332254.250671] r7:00000000 r6:00000000 r5:c0050450 r4:ef0407c0
[332254.388793] (t=8688 jiffies g=1027929 c=1027928 q=10)
[332254.394622] Task dump for CPU 1:
[332254.398620] swapper/1 R running 0 0 1 0x00000000
[332254.405395] Backtrace:
[332254.408142] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[332254.415496] r7:c092a518 r6:80010193 r5:00000001 r4:ef077480
[332254.422271] [<c0014164>] (show_stack) from [<c005ac68>] (sched_show_task+0xbc/0x110)
[332254.430664] [<c005abac>] (sched_show_task) from [<c005d0f8>] (dump_cpu_task+0x40/0x48)
[332254.439056] r5:c093a080 r4:00000001
[332254.443023] [<c005d0b8>] (dump_cpu_task) from [<c00828c4>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[332254.445129] r5:c093a080 r4:00000002
[332254.455749] [<c0082828>] (rcu_dump_cpu_stacks) from [<c0086d28>] (rcu_check_callbacks+0x500/0x8e4)
[332254.464935] r9:c093a080 r8:c092a628 r7:2ee95000 r6:c0926340 r5:c093a080 r4:ef7bb340
[332254.464935] [<c0086828>] (rcu_check_callbacks) from [<c0089f58>] (update_process_times+0x40/0x6c)
[332254.481597] r10:c009b20c r9:00000001 r8:ef7b7c4c r7:00012e2e r6:babf14d4 r5:00000000
[332254.490356] r4:ef077480
[332254.494323] [<c0089f18>] (update_process_times) from [<c009b208>] (tick_sched_handle+0x50/0x54)
[332254.496978] r5:ef09ff58 r4:ef7b7e40
[332254.507507] [<c009b1b8>] (tick_sched_handle) from [<c009b25c>] (tick_sched_timer+0x50/0x94)
[332254.513183] [<c009b20c>] (tick_sched_timer) from [<c008a99c>] (__hrtimer_run_queues+0x110/0x1a4)
[332254.513183] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[332254.527496] [<c008a88c>] (__hrtimer_run_queues) from [<c008b030>] (hrtimer_interrupt+0xac/0x1fc)
[332254.540344] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[332254.547058] r4:ef7b7c00
[332254.552520] [<c008af84>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[332254.560974] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[332254.568176] r4:00000001
[332254.572174] [<c00171d4>] (twd_handler) from [<c007d02c>] (handle_percpu_devid_irq+0x74/0x8c)
[332254.572174] r5:ef005cc0 r4:ef7bd780
[332254.585083] [<c007cfb8>] (handle_percpu_devid_irq) from [<c0078ab4>] (generic_handle_irq+0x2c/0x3c)
[332254.594757] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092341c
[332254.600341] [<c0078a88>] (generic_handle_irq) from [<c0078dac>] (__handle_domain_irq+0x64/0xbc)
[332254.610351] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[332254.620361] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a8 r4:c0947f48
[332254.629608] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[332254.630340] Exception stack(0xef09ff58 to 0xef09ffa0)
[332254.643066] ff40: 00000000 ef7b7390
[332254.643066] ff60: fe600000 00000000 ef09e000 c092a49c c092236c ef09ffc8 c0967065 c0967065
[332254.654663] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028a30 c0010ca0 60010113 ffffffff
[332254.666015] r9:c0967065 r8:c0967065 r7:ef09ff8c r6:ffffffff r5:60010113 r4:c0010ca0
[332254.670349] [<c0010c78>] (arch_cpu_idle) from [<c006f720>] (default_idle_call+0x28/0x34)
[332254.685729] [<c006f6f8>] (default_idle_call) from [<c006f844>] (cpu_startup_entry+0x118/0x188)
[332254.694183] [<c006f72c>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[332254.705169] r7:c096a288 r4:c093d140
[332254.706542] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[332254.711669] r5:00000051 r4:af08406a
$
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-19 3:56 ` Ross Green
@ 2016-02-19 4:13 ` John Stultz
2016-02-19 17:33 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: John Stultz @ 2016-02-19 4:13 UTC (permalink / raw)
To: Ross Green
Cc: Mathieu Desnoyers, Paul E. McKenney, Thomas Gleixner,
Peter Zijlstra, lkml, Ingo Molnar, Lai Jiangshan, dipankar,
Andrew Morton, Josh Triplett, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
> Well a bonus extra!
> Kept everything running and there was another stall.
> So i have included the demsg output for perusal.
>
> Just to clear things up there is no hotplug involved in this system.
> It is a standard Pandaboard ES Ti4460 two processor system.
> I use this for testing as a generic armv7 processor, plus can keep it
> just running along for testing for a long time. the system has a total
> of 23-25 process running on average. Mainly standard daemons. There is
> certainly no heavy processing going on. I run a series of benchmarks
> that are cpu intensive for the first 20 miinutes after boot and then
> just leave it idle away. checking every so often to see how it has
> gone.
> As mentioned I have observed these stalls going back to 3.17 kernel.
> It will often take up to a week to record such a stall. I will
> typically test every new release kernel, so the -rc? series will get
> around a weeks testing.
Sorry. Kind of hopping in a bit late here. Is this always happening
with just the pandaboard? Or are you seeing this on different
machines?
Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
something is going awry there?
thanks
-john
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-18 23:14 ` Mathieu Desnoyers
2016-02-19 3:56 ` Ross Green
@ 2016-02-19 4:22 ` Paul E. McKenney
2016-02-19 5:59 ` Ross Green
1 sibling, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-19 4:22 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Ross Green, Thomas Gleixner, John Stultz, Peter Zijlstra,
linux-kernel, Ingo Molnar, Lai Jiangshan, dipankar,
Andrew Morton, josh, rostedt, David Howells, Eric Dumazet,
dvhart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar
On Thu, Feb 18, 2016 at 11:14:21PM +0000, Mathieu Desnoyers wrote:
> ----- On Feb 18, 2016, at 6:51 AM, Ross Green rgkernel@gmail.com wrote:
>
> > On Thu, Feb 18, 2016 at 10:19 AM, Paul E. McKenney
> > <paulmck@linux.vnet.ibm.com> wrote:
> >> On Wed, Feb 17, 2016 at 12:28:29PM -0800, Paul E. McKenney wrote:
> >>> On Wed, Feb 17, 2016 at 08:45:54PM +0100, Peter Zijlstra wrote:
> >>> > On Wed, Feb 17, 2016 at 11:28:17AM -0800, Paul E. McKenney wrote:
> >>> > > On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote:
> >>> > > > On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
> >>> > > > > Continued testing with the latest linux-4.5-rc3 release.
> >>> > > > >
> >>> > > > > Please find attached a copy of traces from dmesg:
> >>> > > > >
> >>> > > > > There is a lot more debug and trace data so hopefully this will shed
> >>> > > > > some light on what might be happening here.
> >>> > > > >
> >>> > > > > My testing remains run a series of simple benchmarks, let that run to
> >>> > > > > completion and then leave the system idle away with just a few daemons
> >>> > > > > running.
> >>> > > > >
> >>> > > > > the self detected stalls in this instance turned up after a days run time.
> >>> > > > > There were NO heavy artificial computational loads on the machine.
> >>> > > >
> >>> > > > It does indeed look quiet on that dmesg for a good long time.
> >>> > > >
> >>> > > > The following insanely crude not-for-mainline hack -might- be producing
> >>> > > > good results in my testing. It will take some time before I can claim
> >>> > > > statistically different results. But please feel free to give it a go
> >>> > > > in the meantime. (Thanks to Al Viro for pointing me in this direction.)
> >>> >
> >>> > Your case was special in that is was hotplug triggering it, right?
> >>>
> >>> Yes, it has thus far only shown up with CPU hotplug enabled.
> >>>
> >>> > I was auditing the hotplug paths involved when I fell ill two weeks ago,
> >>> > and have not really made any progress on that because of that :/
> >>>
> >>> I have always said that being sick is bad for one's health, but I didn't
> >>> realize that it could be bad for the kernel's health as well. ;-)
> >>>
> >>> > I'll go have another look, I had a vague feeling for a race back then,
> >>> > lets see if I can still remember how..
> >>>
> >>> I believe that I can -finally- get an ftrace_dump() to happen within
> >>> 10-20 milliseconds of the problem, which just might be soon enough
> >>> after the problem to gather some useful information. I am currently
> >>> testing this theory with "ftrace trace_event=sched_waking,sched_wakeup"
> >>> boot arguments on a two-hour run.
> >>
> >> And apparently another way to greatly reduce the probability of this
> >> bug occurring is to enable ftrace. :-/
> >>
> >> Will try longer runs.
> >>
> >> Thanx, Paul
> >>
> >>> If this works out, what would be a useful set of trace events for me
> >>> to capture?
> >>>
> >>> Thanx, Paul
> >>
> >
> > Well managed to catch this one on linux-4.5-rc4.
> >
> > Took over 3 days and 7 hours to hit.
> >
> > Same test as before, boot, run a series of simple benchmarks and then
> > let the machine just idle away.
> >
> > As before, the reported stall, AND everything keeps on running as if
> > nothing had happened.
> >
> > I notice in the task dump for both the cpus, the swapper is running on
> > both cpus.
> >
> > does that make any sense?
> > There is around 3% of memory actually used.
> >
> > Anyway, please find attached a copy of the dmesg output.
> >
> > Hope this helps a few people fill in the missing pieces here.
>
> What seems weird here is that all code paths in the loop
> perform a WRITE_ONCE(rsp->gp_activity, jiffies), which
> implies progress in each case:
>
> - rcu_gp_init() does it,
> - both branches in the QS forcing loop do it, either
> through rcu_gp_fqs(), or directly,
>
> This means the thread is really stalled, and the backtrace
> shows those threads are stalled on the
>
> ret = wait_event_interruptible_timeout(rsp->gp_wq,
> rcu_gp_fqs_check_wake(rsp, &gf), j);
>
> Since this is a *_timeout wait, for which the timeout
> is bounded by "j" jiffies which is bounded by "HZ" value,
> we should really not stay there too long, even if we are
> not awakened by whatever is supposed to awaken us.
Completely agreed on this seeming weird. ;-)
> So unless I'm missing something, it would look like
> schedule_timeout() is missing its timeout there.
>
> Perhaps we only experience this missed timeout here
> because typically there is always a wakeup coming sooner
> or later on relatively busy systems. This one is idle
> for quite a while.
>
> Thoughts ?
I can also make this happen (infrequently) on a busy system with
rcutorture, but only with frequent CPU hotplugging. Ross is making
it happen with pure idle.
I did manage to make this fail with ftrace running, but thus far
have not been able to get a trace that actually includes any
activity for the grace-period kthread. Working on tightening
up the tests...
Thanx, Paul
> Thanks,
>
> Mathieu
>
>
> >
> > Regards,
> >
> > Ross Green
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-19 4:22 ` Paul E. McKenney
@ 2016-02-19 5:59 ` Ross Green
0 siblings, 0 replies; 79+ messages in thread
From: Ross Green @ 2016-02-19 5:59 UTC (permalink / raw)
To: Paul McKenney
Cc: Mathieu Desnoyers, Thomas Gleixner, John Stultz, Peter Zijlstra,
linux-kernel, Ingo Molnar, Lai Jiangshan, dipankar,
Andrew Morton, josh, rostedt, David Howells, Eric Dumazet,
dvhart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar
[-- Attachment #1: Type: text/plain, Size: 7163 bytes --]
On Fri, Feb 19, 2016 at 3:22 PM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> On Thu, Feb 18, 2016 at 11:14:21PM +0000, Mathieu Desnoyers wrote:
>> ----- On Feb 18, 2016, at 6:51 AM, Ross Green rgkernel@gmail.com wrote:
>>
>> > On Thu, Feb 18, 2016 at 10:19 AM, Paul E. McKenney
>> > <paulmck@linux.vnet.ibm.com> wrote:
>> >> On Wed, Feb 17, 2016 at 12:28:29PM -0800, Paul E. McKenney wrote:
>> >>> On Wed, Feb 17, 2016 at 08:45:54PM +0100, Peter Zijlstra wrote:
>> >>> > On Wed, Feb 17, 2016 at 11:28:17AM -0800, Paul E. McKenney wrote:
>> >>> > > On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote:
>> >>> > > > On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote:
>> >>> > > > > Continued testing with the latest linux-4.5-rc3 release.
>> >>> > > > >
>> >>> > > > > Please find attached a copy of traces from dmesg:
>> >>> > > > >
>> >>> > > > > There is a lot more debug and trace data so hopefully this will shed
>> >>> > > > > some light on what might be happening here.
>> >>> > > > >
>> >>> > > > > My testing remains run a series of simple benchmarks, let that run to
>> >>> > > > > completion and then leave the system idle away with just a few daemons
>> >>> > > > > running.
>> >>> > > > >
>> >>> > > > > the self detected stalls in this instance turned up after a days run time.
>> >>> > > > > There were NO heavy artificial computational loads on the machine.
>> >>> > > >
>> >>> > > > It does indeed look quiet on that dmesg for a good long time.
>> >>> > > >
>> >>> > > > The following insanely crude not-for-mainline hack -might- be producing
>> >>> > > > good results in my testing. It will take some time before I can claim
>> >>> > > > statistically different results. But please feel free to give it a go
>> >>> > > > in the meantime. (Thanks to Al Viro for pointing me in this direction.)
>> >>> >
>> >>> > Your case was special in that is was hotplug triggering it, right?
>> >>>
>> >>> Yes, it has thus far only shown up with CPU hotplug enabled.
>> >>>
>> >>> > I was auditing the hotplug paths involved when I fell ill two weeks ago,
>> >>> > and have not really made any progress on that because of that :/
>> >>>
>> >>> I have always said that being sick is bad for one's health, but I didn't
>> >>> realize that it could be bad for the kernel's health as well. ;-)
>> >>>
>> >>> > I'll go have another look, I had a vague feeling for a race back then,
>> >>> > lets see if I can still remember how..
>> >>>
>> >>> I believe that I can -finally- get an ftrace_dump() to happen within
>> >>> 10-20 milliseconds of the problem, which just might be soon enough
>> >>> after the problem to gather some useful information. I am currently
>> >>> testing this theory with "ftrace trace_event=sched_waking,sched_wakeup"
>> >>> boot arguments on a two-hour run.
>> >>
>> >> And apparently another way to greatly reduce the probability of this
>> >> bug occurring is to enable ftrace. :-/
>> >>
>> >> Will try longer runs.
>> >>
>> >> Thanx, Paul
>> >>
>> >>> If this works out, what would be a useful set of trace events for me
>> >>> to capture?
>> >>>
>> >>> Thanx, Paul
>> >>
>> >
>> > Well managed to catch this one on linux-4.5-rc4.
>> >
>> > Took over 3 days and 7 hours to hit.
>> >
>> > Same test as before, boot, run a series of simple benchmarks and then
>> > let the machine just idle away.
>> >
>> > As before, the reported stall, AND everything keeps on running as if
>> > nothing had happened.
>> >
>> > I notice in the task dump for both the cpus, the swapper is running on
>> > both cpus.
>> >
>> > does that make any sense?
>> > There is around 3% of memory actually used.
>> >
>> > Anyway, please find attached a copy of the dmesg output.
>> >
>> > Hope this helps a few people fill in the missing pieces here.
>>
>> What seems weird here is that all code paths in the loop
>> perform a WRITE_ONCE(rsp->gp_activity, jiffies), which
>> implies progress in each case:
>>
>> - rcu_gp_init() does it,
>> - both branches in the QS forcing loop do it, either
>> through rcu_gp_fqs(), or directly,
>>
>> This means the thread is really stalled, and the backtrace
>> shows those threads are stalled on the
>>
>> ret = wait_event_interruptible_timeout(rsp->gp_wq,
>> rcu_gp_fqs_check_wake(rsp, &gf), j);
>>
>> Since this is a *_timeout wait, for which the timeout
>> is bounded by "j" jiffies which is bounded by "HZ" value,
>> we should really not stay there too long, even if we are
>> not awakened by whatever is supposed to awaken us.
>
> Completely agreed on this seeming weird. ;-)
>
>> So unless I'm missing something, it would look like
>> schedule_timeout() is missing its timeout there.
>>
>> Perhaps we only experience this missed timeout here
>> because typically there is always a wakeup coming sooner
>> or later on relatively busy systems. This one is idle
>> for quite a while.
>>
>> Thoughts ?
>
> I can also make this happen (infrequently) on a busy system with
> rcutorture, but only with frequent CPU hotplugging. Ross is making
> it happen with pure idle.
>
> I did manage to make this fail with ftrace running, but thus far
> have not been able to get a trace that actually includes any
> activity for the grace-period kthread. Working on tightening
> up the tests...
>
> Thanx, Paul
>
>> Thanks,
>>
>> Mathieu
>>
>>
>> >
>> > Regards,
>> >
>> > Ross Green
>>
>> --
>> Mathieu Desnoyers
>> EfficiOS Inc.
>> http://www.efficios.com
>
>
It is only happening on the pandaboard.
I always use this for testing a new kernel as it is a good generic
armv7 system with not too much exotic hardware attached to it.
Thinking about what else might be different with this system ...
The realtime clock is not battery backed up so I use ntpd to adjust the time.
just wondering if there might be something weird going on when there
is a time adjustment. Certainly sets time at startup once network is
established.
Gets the correct time.
I assumed over such short times the time differentials and drift would
not be that great.
I do have several other armv7 machines that are running usually with
faster and more hardware on board, but have not run these with latest
software.
the only other machine I have tested these later kernels on is intel
based laptops.
Never seen these sort of stalls there.
They are on the whole very active machines.
Loads more software on board and usually some gui graphics interface.
This pandaboard is running without any graphics.
I will include the kernel .config I have for the machine to see if
that sheds any light on things.
As Paul has said this pandaboard is really just idling along, with no
real work happening.
There are only a handful of daemons running in the background that
should not be doing very much, most of the time.
the only CPU intensive load I run is a series of crypto and graphics
bit blit operations that take around 10-20 minutes to complete. Then I
leave the machine alone.
Regards,
Ross Green
[-- Attachment #2: kconfig-4.4 --]
[-- Type: application/octet-stream, Size: 91495 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/arm 4.4.0-rc6 Kernel Configuration
#
CONFIG_ARM=y
CONFIG_ARM_HAS_SG_CHAIN=y
CONFIG_MIGHT_HAVE_PCI=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_HAVE_PROC_CPU=y
CONFIG_NO_IOPORT_MAP=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_ARCH_HAS_BANDGAP=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_VECTORS_BASE=0xffff0000
CONFIG_ARM_PATCH_PHYS_VIRT=y
CONFIG_GENERIC_BUG=y
CONFIG_PGTABLE_LEVELS=2
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION="-panda"
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
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# CONFIG_KERNEL_LZMA is not set
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# CONFIG_KERNEL_LZ4 is not set
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CONFIG_SWAP=y
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# CONFIG_FHANDLE is not set
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# CONFIG_AUDIT is not set
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
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CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
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CONFIG_IRQ_DOMAIN_HIERARCHY=y
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# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_GENERIC_TIME_VSYSCALL=y
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CONFIG_ARCH_HAS_TICK_BROADCAST=y
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# Timers subsystem
#
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# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
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# CONFIG_BLK_DEV_INITRD is not set
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CONFIG_OMAP_DM_TIMER=y
CONFIG_OMAP_PM_NOOP=y
CONFIG_MACH_OMAP_GENERIC=y
#
# TI OMAP/AM/DM/DRA Family
#
# CONFIG_ARCH_OMAP3 is not set
CONFIG_ARCH_OMAP4=y
# CONFIG_SOC_OMAP5 is not set
# CONFIG_SOC_AM33XX is not set
# CONFIG_SOC_AM43XX is not set
# CONFIG_SOC_DRA7XX is not set
CONFIG_ARCH_OMAP2PLUS=y
CONFIG_OMAP_INTERCONNECT_BARRIER=y
#
# TI OMAP2/3/4 Specific Features
#
CONFIG_ARCH_OMAP2PLUS_TYPICAL=y
CONFIG_SOC_HAS_OMAP2_SDRC=y
#
# OMAP Legacy Platform Data Board Type
#
# CONFIG_ARCH_QCOM is not set
# CONFIG_ARCH_ROCKCHIP is not set
# CONFIG_ARCH_SOCFPGA is not set
# CONFIG_PLAT_SPEAR is not set
# CONFIG_ARCH_STI is not set
# CONFIG_ARCH_S5PV210 is not set
# CONFIG_ARCH_EXYNOS is not set
# CONFIG_ARCH_SHMOBILE_MULTI is not set
# CONFIG_ARCH_SUNXI is not set
# CONFIG_ARCH_SIRF is not set
# CONFIG_ARCH_TEGRA is not set
# CONFIG_ARCH_UNIPHIER is not set
# CONFIG_ARCH_U8500 is not set
CONFIG_ARCH_VEXPRESS=y
CONFIG_ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA=y
# CONFIG_ARCH_VEXPRESS_SPC is not set
# CONFIG_ARCH_WM8850 is not set
# CONFIG_ARCH_ZX is not set
# CONFIG_ARCH_ZYNQ is not set
CONFIG_PLAT_VERSATILE=y
#
# Processor Type
#
CONFIG_CPU_V7=y
CONFIG_CPU_32v6K=y
CONFIG_CPU_32v7=y
CONFIG_CPU_ABRT_EV7=y
CONFIG_CPU_PABRT_V7=y
CONFIG_CPU_CACHE_V7=y
CONFIG_CPU_CACHE_VIPT=y
CONFIG_CPU_COPY_V6=y
CONFIG_CPU_TLB_V7=y
CONFIG_CPU_HAS_ASID=y
CONFIG_CPU_CP15=y
CONFIG_CPU_CP15_MMU=y
#
# Processor Features
#
# CONFIG_ARM_LPAE is not set
# CONFIG_ARCH_PHYS_ADDR_T_64BIT is not set
CONFIG_ARM_THUMB=y
CONFIG_ARM_THUMBEE=y
CONFIG_ARM_VIRT_EXT=y
CONFIG_SWP_EMULATE=y
# CONFIG_CPU_BIG_ENDIAN is not set
# CONFIG_CPU_ICACHE_DISABLE is not set
# CONFIG_CPU_BPREDICT_DISABLE is not set
CONFIG_KUSER_HELPERS=y
CONFIG_VDSO=y
CONFIG_OUTER_CACHE=y
CONFIG_OUTER_CACHE_SYNC=y
CONFIG_MIGHT_HAVE_CACHE_L2X0=y
CONFIG_CACHE_L2X0=y
CONFIG_PL310_ERRATA_588369=y
CONFIG_PL310_ERRATA_727915=y
CONFIG_PL310_ERRATA_753970=y
# CONFIG_PL310_ERRATA_769419 is not set
CONFIG_ARM_L1_CACHE_SHIFT_6=y
CONFIG_ARM_L1_CACHE_SHIFT=6
CONFIG_ARM_DMA_MEM_BUFFERABLE=y
CONFIG_ARM_HEAVY_MB=y
CONFIG_ARCH_SUPPORTS_BIG_ENDIAN=y
# CONFIG_ARM_KERNMEM_PERMS is not set
CONFIG_MULTI_IRQ_HANDLER=y
# CONFIG_ARM_ERRATA_430973 is not set
CONFIG_ARM_ERRATA_643719=y
CONFIG_ARM_ERRATA_720789=y
CONFIG_ARM_ERRATA_754322=y
# CONFIG_ARM_ERRATA_754327 is not set
# CONFIG_ARM_ERRATA_764369 is not set
CONFIG_ARM_ERRATA_775420=y
# CONFIG_ARM_ERRATA_798181 is not set
# CONFIG_ARM_ERRATA_773022 is not set
CONFIG_ICST=y
#
# Bus support
#
# CONFIG_PCI is not set
# CONFIG_PCI_DOMAINS_GENERIC is not set
# CONFIG_PCI_SYSCALL is not set
# CONFIG_PCCARD is not set
#
# Kernel Features
#
CONFIG_HAVE_SMP=y
CONFIG_SMP=y
CONFIG_SMP_ON_UP=y
CONFIG_ARM_CPU_TOPOLOGY=y
# CONFIG_SCHED_MC is not set
# CONFIG_SCHED_SMT is not set
CONFIG_HAVE_ARM_SCU=y
CONFIG_HAVE_ARM_ARCH_TIMER=y
CONFIG_HAVE_ARM_TWD=y
# CONFIG_MCPM is not set
# CONFIG_BIG_LITTLE is not set
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_3G_OPT is not set
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_NR_CPUS=2
CONFIG_HOTPLUG_CPU=y
# CONFIG_ARM_PSCI is not set
CONFIG_ARCH_NR_GPIO=0
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_HZ_FIXED=0
CONFIG_HZ_100=y
# CONFIG_HZ_200 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_500 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_SCHED_HRTICK=y
# CONFIG_THUMB2_KERNEL is not set
CONFIG_AEABI=y
CONFIG_OABI_COMPAT=y
CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
CONFIG_HAVE_ARCH_PFN_VALID=y
CONFIG_HIGHMEM=y
# CONFIG_HIGHPTE is not set
CONFIG_CPU_SW_DOMAIN_PAN=y
CONFIG_HW_PERF_EVENTS=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
# CONFIG_ARM_MODULE_PLTS is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_NO_BOOTMEM=y
CONFIG_MEMORY_ISOLATION=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=0
CONFIG_BOUNCE=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
CONFIG_CMA=y
# CONFIG_CMA_DEBUG is not set
# CONFIG_CMA_DEBUGFS is not set
CONFIG_CMA_AREAS=7
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_FRAME_VECTOR=y
CONFIG_FORCE_MAX_ZONEORDER=11
CONFIG_ALIGNMENT_TRAP=y
# CONFIG_UACCESS_WITH_MEMCPY is not set
# CONFIG_SECCOMP is not set
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
# CONFIG_XEN is not set
#
# Boot options
#
CONFIG_USE_OF=y
CONFIG_ATAGS=y
# CONFIG_DEPRECATED_PARAM_STRUCT is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
# CONFIG_ARM_ATAG_DTB_COMPAT is not set
CONFIG_CMDLINE="root=/dev/mmcblk0p2 rootwait console=ttyO2,115200"
CONFIG_CMDLINE_FROM_BOOTLOADER=y
# CONFIG_CMDLINE_EXTEND is not set
# CONFIG_CMDLINE_FORCE is not set
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_AUTO_ZRELADDR=y
#
# CPU Power Management
#
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
#
# CPU frequency scaling drivers
#
# CONFIG_CPUFREQ_DT is not set
# CONFIG_ARM_BIG_LITTLE_CPUFREQ is not set
# CONFIG_ARM_KIRKWOOD_CPUFREQ is not set
CONFIG_ARM_OMAP2PLUS_CPUFREQ=y
# CONFIG_QORIQ_CPUFREQ is not set
#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set
CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED=y
#
# Floating point emulation
#
#
# At least one emulation must be selected
#
# CONFIG_FPE_NWFPE is not set
# CONFIG_FPE_FASTFPE is not set
CONFIG_VFP=y
CONFIG_VFPv3=y
CONFIG_NEON=y
# CONFIG_KERNEL_MODE_NEON is not set
#
# Userspace binary formats
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
#
# Power management options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_SUSPEND_SKIP_SYNC is not set
# CONFIG_HIBERNATION is not set
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_APM_EMULATION is not set
CONFIG_PM_OPP=y
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_CPU_PM=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARM_CPU_SUSPEND=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_NET=y
CONFIG_NET_INGRESS=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_SUB_POLICY is not set
CONFIG_XFRM_MIGRATE=y
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_NET_IP_TUNNEL is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_UDP_TUNNEL is not set
# CONFIG_NET_FOU is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_INET_UDP_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETLABEL is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NET_PTP_CLASSIFY is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
# CONFIG_NETFILTER_NETLINK_ACCT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=y
#
# Xtables combined modules
#
# CONFIG_NETFILTER_XT_MARK is not set
#
# Xtables targets
#
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
# CONFIG_NETFILTER_XT_TARGET_LED is not set
# CONFIG_NETFILTER_XT_TARGET_LOG is not set
# CONFIG_NETFILTER_XT_TARGET_MARK is not set
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
#
# Xtables matches
#
# CONFIG_NETFILTER_XT_MATCH_ADDRTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
# CONFIG_NETFILTER_XT_MATCH_CPU is not set
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
# CONFIG_NETFILTER_XT_MATCH_DEVGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
# CONFIG_NETFILTER_XT_MATCH_ECN is not set
# CONFIG_NETFILTER_XT_MATCH_ESP is not set
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_HL is not set
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_MAC is not set
# CONFIG_NETFILTER_XT_MATCH_MARK is not set
# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
# CONFIG_NETFILTER_XT_MATCH_POLICY is not set
# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
# CONFIG_NETFILTER_XT_MATCH_SOCKET is not set
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
# CONFIG_NETFILTER_XT_MATCH_STRING is not set
# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set
#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
# CONFIG_NF_DUP_IPV4 is not set
# CONFIG_NF_LOG_ARP is not set
# CONFIG_NF_LOG_IPV4 is not set
# CONFIG_NF_REJECT_IPV4 is not set
CONFIG_IP_NF_IPTABLES=y
# CONFIG_IP_NF_MATCH_AH is not set
# CONFIG_IP_NF_MATCH_ECN is not set
# CONFIG_IP_NF_MATCH_TTL is not set
CONFIG_IP_NF_FILTER=y
# CONFIG_IP_NF_TARGET_REJECT is not set
# CONFIG_IP_NF_MANGLE is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_SECURITY is not set
# CONFIG_IP_NF_ARPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
# CONFIG_BPF_JIT is not set
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
CONFIG_BT=m
CONFIG_BT_BREDR=y
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
# CONFIG_BT_BNEP_MC_FILTER is not set
# CONFIG_BT_BNEP_PROTO_FILTER is not set
CONFIG_BT_HIDP=m
CONFIG_BT_HS=y
CONFIG_BT_LE=y
# CONFIG_BT_SELFTEST is not set
CONFIG_BT_DEBUGFS=y
#
# Bluetooth device drivers
#
# CONFIG_BT_HCIBTUSB is not set
CONFIG_BT_HCIBTSDIO=m
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
# CONFIG_BT_HCIUART_ATH3K is not set
CONFIG_BT_HCIUART_LL=y
# CONFIG_BT_HCIUART_3WIRE is not set
# CONFIG_BT_HCIUART_INTEL is not set
# CONFIG_BT_HCIUART_BCM is not set
# CONFIG_BT_HCIUART_QCA is not set
# CONFIG_BT_HCIBCM203X is not set
# CONFIG_BT_HCIBPA10X is not set
# CONFIG_BT_HCIBFUSB is not set
# CONFIG_BT_HCIVHCI is not set
# CONFIG_BT_MRVL is not set
CONFIG_BT_WILINK=m
# CONFIG_AF_RXRPC is not set
CONFIG_WIRELESS=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
# CONFIG_CFG80211_CERTIFICATION_ONUS is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
# CONFIG_CFG80211_WEXT is not set
# CONFIG_LIB80211 is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
# CONFIG_MAC80211_RC_MINSTREL_VHT is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_WIMAX is not set
CONFIG_RFKILL=y
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_REGULATOR is not set
CONFIG_RFKILL_GPIO=y
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_LWTUNNEL is not set
CONFIG_HAVE_BPF_JIT=y
#
# Device Drivers
#
CONFIG_ARM_AMBA=y
# CONFIG_TEGRA_AHB is not set
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_SOC_BUS=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPI=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_FENCE_TRACE is not set
# CONFIG_DMA_CMA is not set
#
# Bus devices
#
CONFIG_ARM_CCI=y
CONFIG_ARM_CCI_PMU=y
# CONFIG_ARM_CCI400_PMU is not set
CONFIG_ARM_CCI500_PMU=y
# CONFIG_ARM_CCN is not set
# CONFIG_BRCMSTB_GISB_ARB is not set
CONFIG_OMAP_INTERCONNECT=y
# CONFIG_OMAP_OCP2SCP is not set
CONFIG_VEXPRESS_CONFIG=y
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
# CONFIG_MTD is not set
CONFIG_DTC=y
CONFIG_OF=y
# CONFIG_OF_UNITTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_NET=y
CONFIG_OF_RESERVED_MEM=y
# CONFIG_OF_OVERLAY is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=4
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_MG_DISK is not set
# CONFIG_BLK_DEV_RBD is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_TI_DAC7512 is not set
# CONFIG_ARM_CHARLCD is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_BMP085_SPI is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
CONFIG_VEXPRESS_SYSCFG=y
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_93XX46 is not set
#
# Texas Instruments shared transport line discipline
#
CONFIG_TI_ST=m
# CONFIG_SENSORS_LIS3_SPI is not set
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
#
# Intel MIC Bus Driver
#
#
# SCIF Bus Driver
#
#
# Intel MIC Host Driver
#
#
# Intel MIC Card Driver
#
#
# SCIF Driver
#
#
# Intel MIC Coprocessor State Management (COSM) Drivers
#
# CONFIG_ECHO is not set
# CONFIG_CXL_BASE is not set
# CONFIG_CXL_KERNEL_API is not set
# CONFIG_CXL_EEH is not set
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_MQ_DEFAULT is not set
# CONFIG_SCSI_PROC_FS is not set
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
CONFIG_SCSI_SCAN_ASYNC=y
#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_HAVE_PATA_PLATFORM=y
# CONFIG_ATA is not set
CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_MQ_DEFAULT is not set
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
# CONFIG_DM_ERA is not set
# CONFIG_DM_MIRROR is not set
# CONFIG_DM_RAID is not set
# CONFIG_DM_ZERO is not set
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
CONFIG_DM_UEVENT=y
# CONFIG_DM_FLAKEY is not set
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
# CONFIG_DM_LOG_WRITES is not set
# CONFIG_TARGET_CORE is not set
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
#
# CAIF transport drivers
#
#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_ETHERNET is not set
# CONFIG_PHYLIB is not set
# CONFIG_MICREL_KS8995MA is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=y
# CONFIG_USB_NET_AX8817X is not set
# CONFIG_USB_NET_AX88179_178A is not set
# CONFIG_USB_NET_CDCETHER is not set
# CONFIG_USB_NET_CDC_EEM is not set
# CONFIG_USB_NET_CDC_NCM is not set
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
CONFIG_USB_NET_SMSC95XX=y
# CONFIG_USB_NET_GL620A is not set
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
# CONFIG_USB_NET_RNDIS_HOST is not set
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_NET_CH9200 is not set
CONFIG_WLAN=y
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_AT76C50X_USB is not set
# CONFIG_USB_ZD1201 is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_RTL8187 is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_ATH_CARDS is not set
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
# CONFIG_HOSTAP is not set
# CONFIG_LIBERTAS is not set
# CONFIG_P54_COMMON is not set
# CONFIG_RT2X00 is not set
# CONFIG_WL_MEDIATEK is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CU is not set
# CONFIG_RTL8XXXU is not set
CONFIG_WL_TI=y
# CONFIG_WL1251 is not set
CONFIG_WL12XX=m
# CONFIG_WL18XX is not set
CONFIG_WLCORE=m
# CONFIG_WLCORE_SPI is not set
CONFIG_WLCORE_SDIO=m
CONFIG_WILINK_PLATFORM_DATA=y
# CONFIG_ZD1211RW is not set
# CONFIG_MWIFIEX is not set
# CONFIG_CW1200 is not set
# CONFIG_RSI_91X is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_ISDN is not set
# CONFIG_NVM is not set
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=y
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_GPIO=y
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_OMAP4 is not set
# CONFIG_KEYBOARD_TWL4030 is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CAP11XX is not set
# CONFIG_KEYBOARD_BCM is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_BMA150 is not set
# CONFIG_INPUT_E3X0_BUTTON is not set
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_MPU3050 is not set
# CONFIG_INPUT_GP2A is not set
# CONFIG_INPUT_GPIO_BEEPER is not set
# CONFIG_INPUT_GPIO_TILT_POLLED is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_KXTJ9 is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_REGULATOR_HAPTIC is not set
CONFIG_INPUT_TWL4030_PWRBUTTON=y
# CONFIG_INPUT_TWL4030_VIBRA is not set
# CONFIG_INPUT_TWL6040_VIBRA is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_PALMAS_PWRBUTTON is not set
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_PWM_BEEPER is not set
# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IMS_PCU is not set
# CONFIG_INPUT_CMA3000 is not set
# CONFIG_INPUT_SOC_BUTTON_ARRAY is not set
# CONFIG_INPUT_DRV260X_HAPTICS is not set
# CONFIG_INPUT_DRV2665_HAPTICS is not set
# CONFIG_INPUT_DRV2667_HAPTICS is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_AMBAKMI is not set
# CONFIG_SERIO_LIBPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_SERIO_APBPS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVMEM=y
CONFIG_DEVKMEM=y
#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_FSL=y
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_EM is not set
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_8250_OMAP is not set
# CONFIG_SERIAL_8250_INGENIC is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_AMBA_PL010 is not set
# CONFIG_SERIAL_AMBA_PL011 is not set
# CONFIG_SERIAL_EARLYCON_ARM_SEMIHOST is not set
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_OF_PLATFORM is not set
CONFIG_SERIAL_OMAP=y
CONFIG_SERIAL_OMAP_CONSOLE=y
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_BCM63XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_IFX6X60 is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
# CONFIG_SERIAL_ST_ASC is not set
# CONFIG_SERIAL_STM32 is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_HVC_DCC is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_OMAP=y
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_XILLYBUS is not set
#
# I2C support
#
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y
#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_ARB_GPIO_CHALLENGE is not set
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
# CONFIG_I2C_MUX_PINCTRL is not set
# CONFIG_I2C_MUX_REG is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y
#
# I2C Hardware Bus support
#
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_NOMADIK is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_OMAP=y
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_RK3X is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_VERSATILE is not set
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_FSL_SPI is not set
# CONFIG_SPI_OC_TINY is not set
CONFIG_SPI_OMAP24XX=y
# CONFIG_SPI_TI_QSPI is not set
# CONFIG_SPI_PL022 is not set
# CONFIG_SPI_PXA2XX_PCI is not set
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
# CONFIG_SPI_DESIGNWARE is not set
#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
#
# PPS support
#
# CONFIG_PPS is not set
#
# PPS generators support
#
#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PINCTRL=y
#
# Pin controllers
#
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
CONFIG_PINCTRL_SINGLE=y
# CONFIG_PINCTRL_PALMAS is not set
CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_ARCH_REQUIRE_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_OF_GPIO=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_GENERIC=y
#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_74XX_MMIO is not set
# CONFIG_GPIO_ALTERA is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_EM is not set
CONFIG_GPIO_GENERIC_PLATFORM=y
# CONFIG_GPIO_GRGPIO is not set
CONFIG_GPIO_OMAP=y
# CONFIG_GPIO_PL061 is not set
# CONFIG_GPIO_SYSCON is not set
# CONFIG_GPIO_XILINX is not set
# CONFIG_GPIO_ZEVIO is not set
# CONFIG_GPIO_ZX is not set
#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_ADNP is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
CONFIG_GPIO_PCA953X=y
# CONFIG_GPIO_PCA953X_IRQ is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_SX150X is not set
#
# MFD GPIO expanders
#
CONFIG_GPIO_PALMAS=y
# CONFIG_GPIO_TPS65910 is not set
CONFIG_GPIO_TWL4030=y
CONFIG_GPIO_TWL6040=y
#
# SPI GPIO expanders
#
# CONFIG_GPIO_74X164 is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
#
# SPI or I2C GPIO expanders
#
# CONFIG_GPIO_MCP23S08 is not set
#
# USB GPIO expanders
#
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_ISP1704 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24190 is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_CHARGER_RT9455 is not set
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_BRCMSTB is not set
# CONFIG_POWER_RESET_GPIO is not set
# CONFIG_POWER_RESET_GPIO_RESTART is not set
# CONFIG_POWER_RESET_LTC2952 is not set
# CONFIG_POWER_RESET_RESTART is not set
# CONFIG_POWER_RESET_VERSATILE is not set
CONFIG_POWER_RESET_VEXPRESS=y
# CONFIG_POWER_RESET_SYSCON is not set
# CONFIG_POWER_RESET_SYSCON_POWEROFF is not set
CONFIG_POWER_AVS=y
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
# CONFIG_SENSORS_AD7314 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7310 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_GPIO_FAN is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_HTU21 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_ADCXX is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM70 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_PWM_FAN is not set
# CONFIG_SENSORS_SHT15 is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
# CONFIG_SENSORS_ADS1015 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_ADS7871 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VEXPRESS is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
CONFIG_THERMAL=y
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_OF=y
# CONFIG_THERMAL_WRITABLE_TRIPS is not set
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
# CONFIG_THERMAL_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_POWER_ALLOCATOR is not set
CONFIG_CPU_THERMAL=y
# CONFIG_CLOCK_THERMAL is not set
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_IMX_THERMAL is not set
#
# Texas Instruments thermal drivers
#
# CONFIG_TI_SOC_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_GPIO_WATCHDOG is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ARM_SP805_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
CONFIG_OMAP_WATCHDOG=y
# CONFIG_TWL4030_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_BCM7038_WDT is not set
# CONFIG_MEN_A21_WDT is not set
#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_AS3711 is not set
# CONFIG_MFD_AS3722 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_ATMEL_FLEXCOM is not set
# CONFIG_MFD_ATMEL_HLCDC is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_AXP20X is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_MFD_ASIC3 is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_HI6421_PMIC is not set
# CONFIG_HTC_EGPIO is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_INTEL_SOC_PMIC is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_PM8921_CORE is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RTSX_USB is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_RK808 is not set
# CONFIG_MFD_RN5T618 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_STMPE is not set
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
CONFIG_MFD_OMAP_USB_HOST=y
CONFIG_MFD_PALMAS=y
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS6586X is not set
CONFIG_MFD_TPS65910=y
# CONFIG_MFD_TPS65912 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_MFD_TPS80031 is not set
CONFIG_TWL4030_CORE=y
CONFIG_TWL4030_POWER=y
# CONFIG_MFD_TWL4030_AUDIO is not set
CONFIG_TWL6040_CORE=y
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_T7L66XB is not set
# CONFIG_MFD_TC6387XB is not set
# CONFIG_MFD_TC6393XB is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
CONFIG_MFD_VEXPRESS_SYSREG=y
CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_ANATOP is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_DA9211 is not set
# CONFIG_REGULATOR_FAN53555 is not set
# CONFIG_REGULATOR_GPIO is not set
# CONFIG_REGULATOR_ISL9305 is not set
# CONFIG_REGULATOR_ISL6271A is not set
# CONFIG_REGULATOR_LP3971 is not set
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
# CONFIG_REGULATOR_LTC3589 is not set
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX8973 is not set
# CONFIG_REGULATOR_MT6311 is not set
CONFIG_REGULATOR_PALMAS=y
CONFIG_REGULATOR_PBIAS=y
# CONFIG_REGULATOR_PFUZE100 is not set
# CONFIG_REGULATOR_PWM is not set
CONFIG_REGULATOR_TI_ABB=y
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
CONFIG_REGULATOR_TPS65023=y
CONFIG_REGULATOR_TPS6507X=y
# CONFIG_REGULATOR_TPS6524X is not set
CONFIG_REGULATOR_TPS65910=y
CONFIG_REGULATOR_TWL4030=y
# CONFIG_REGULATOR_VEXPRESS is not set
CONFIG_MEDIA_SUPPORT=y
#
# Multimedia core support
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_SDR_SUPPORT is not set
# CONFIG_MEDIA_RC_SUPPORT is not set
# CONFIG_MEDIA_CONTROLLER is not set
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_VIDEOBUF2_CORE=y
CONFIG_VIDEOBUF2_MEMOPS=y
CONFIG_VIDEOBUF2_VMALLOC=y
# CONFIG_TTPCI_EEPROM is not set
#
# Media drivers
#
CONFIG_MEDIA_USB_SUPPORT=y
#
# Webcam devices
#
CONFIG_USB_VIDEO_CLASS=y
CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
CONFIG_USB_GSPCA=m
# CONFIG_USB_M5602 is not set
# CONFIG_USB_STV06XX is not set
# CONFIG_USB_GL860 is not set
# CONFIG_USB_GSPCA_BENQ is not set
# CONFIG_USB_GSPCA_CONEX is not set
# CONFIG_USB_GSPCA_CPIA1 is not set
# CONFIG_USB_GSPCA_DTCS033 is not set
# CONFIG_USB_GSPCA_ETOMS is not set
# CONFIG_USB_GSPCA_FINEPIX is not set
# CONFIG_USB_GSPCA_JEILINJ is not set
# CONFIG_USB_GSPCA_JL2005BCD is not set
# CONFIG_USB_GSPCA_KINECT is not set
# CONFIG_USB_GSPCA_KONICA is not set
# CONFIG_USB_GSPCA_MARS is not set
# CONFIG_USB_GSPCA_MR97310A is not set
# CONFIG_USB_GSPCA_NW80X is not set
# CONFIG_USB_GSPCA_OV519 is not set
# CONFIG_USB_GSPCA_OV534 is not set
# CONFIG_USB_GSPCA_OV534_9 is not set
# CONFIG_USB_GSPCA_PAC207 is not set
# CONFIG_USB_GSPCA_PAC7302 is not set
# CONFIG_USB_GSPCA_PAC7311 is not set
# CONFIG_USB_GSPCA_SE401 is not set
# CONFIG_USB_GSPCA_SN9C2028 is not set
# CONFIG_USB_GSPCA_SN9C20X is not set
# CONFIG_USB_GSPCA_SONIXB is not set
# CONFIG_USB_GSPCA_SONIXJ is not set
# CONFIG_USB_GSPCA_SPCA500 is not set
# CONFIG_USB_GSPCA_SPCA501 is not set
# CONFIG_USB_GSPCA_SPCA505 is not set
# CONFIG_USB_GSPCA_SPCA506 is not set
# CONFIG_USB_GSPCA_SPCA508 is not set
# CONFIG_USB_GSPCA_SPCA561 is not set
# CONFIG_USB_GSPCA_SPCA1528 is not set
# CONFIG_USB_GSPCA_SQ905 is not set
# CONFIG_USB_GSPCA_SQ905C is not set
# CONFIG_USB_GSPCA_SQ930X is not set
# CONFIG_USB_GSPCA_STK014 is not set
# CONFIG_USB_GSPCA_STK1135 is not set
# CONFIG_USB_GSPCA_STV0680 is not set
# CONFIG_USB_GSPCA_SUNPLUS is not set
# CONFIG_USB_GSPCA_T613 is not set
# CONFIG_USB_GSPCA_TOPRO is not set
# CONFIG_USB_GSPCA_TOUPTEK is not set
# CONFIG_USB_GSPCA_TV8532 is not set
# CONFIG_USB_GSPCA_VC032X is not set
# CONFIG_USB_GSPCA_VICAM is not set
# CONFIG_USB_GSPCA_XIRLINK_CIT is not set
# CONFIG_USB_GSPCA_ZC3XX is not set
# CONFIG_USB_PWC is not set
# CONFIG_VIDEO_CPIA2 is not set
# CONFIG_USB_ZR364XX is not set
# CONFIG_USB_STKWEBCAM is not set
# CONFIG_USB_S2255 is not set
# CONFIG_VIDEO_USBTV is not set
#
# Webcam, TV (analog/digital) USB devices
#
# CONFIG_VIDEO_EM28XX is not set
CONFIG_V4L_PLATFORM_DRIVERS=y
# CONFIG_SOC_CAMERA is not set
# CONFIG_V4L_MEM2MEM_DRIVERS is not set
# CONFIG_V4L_TEST_DRIVERS is not set
#
# Supported MMC/SDIO adapters
#
# CONFIG_CYPRESS_FIRMWARE is not set
#
# Media ancillary drivers (tuners, sensors, i2c, frontends)
#
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y
#
# Audio decoders, processors and mixers
#
#
# RDS decoders
#
#
# Video decoders
#
#
# Video and audio decoders
#
#
# Video encoders
#
#
# Camera sensor devices
#
#
# Flash devices
#
#
# Video improvement chips
#
#
# Audio/Video compression chips
#
#
# Miscellaneous helper chips
#
#
# Sensors used on soc_camera driver
#
#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set
#
# Graphics support
#
CONFIG_DRM=y
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_KMS_FB_HELPER=y
CONFIG_DRM_FBDEV_EMULATION=y
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_ADV7511 is not set
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_EXYNOS is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_ARMADA is not set
CONFIG_DRM_OMAP=y
CONFIG_DRM_OMAP_NUM_CRTCS=2
# CONFIG_DRM_TILCDC is not set
# CONFIG_DRM_FSL_DCU is not set
CONFIG_DRM_BRIDGE=y
#
# Display Interface Bridges
#
# CONFIG_DRM_NXP_PTN3460 is not set
# CONFIG_DRM_PARADE_PS8622 is not set
# CONFIG_DRM_STI is not set
#
# Frame buffer Devices
#
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_CMDLINE=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
#
# Frame buffer hardware drivers
#
# CONFIG_FB_ARMCLCD is not set
# CONFIG_FB_UVESA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_FB_SIMPLE is not set
CONFIG_OMAP2_DSS_INIT=y
CONFIG_OMAP2_DSS=y
# CONFIG_OMAP2_DSS_DEBUG is not set
# CONFIG_OMAP2_DSS_DEBUGFS is not set
CONFIG_OMAP2_DSS_DPI=y
# CONFIG_OMAP2_DSS_VENC is not set
CONFIG_OMAP2_DSS_HDMI_COMMON=y
CONFIG_OMAP4_DSS_HDMI=y
# CONFIG_OMAP5_DSS_HDMI is not set
CONFIG_OMAP2_DSS_SDI=y
CONFIG_OMAP2_DSS_DSI=y
CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
CONFIG_OMAP2_DSS_SLEEP_AFTER_VENC_RESET=y
#
# OMAP Display Device Drivers (new device model)
#
# CONFIG_DISPLAY_ENCODER_OPA362 is not set
# CONFIG_DISPLAY_ENCODER_TFP410 is not set
# CONFIG_DISPLAY_ENCODER_TPD12S015 is not set
# CONFIG_DISPLAY_CONNECTOR_DVI is not set
# CONFIG_DISPLAY_CONNECTOR_HDMI is not set
# CONFIG_DISPLAY_CONNECTOR_ANALOG_TV is not set
# CONFIG_DISPLAY_PANEL_DPI is not set
# CONFIG_DISPLAY_PANEL_LGPHILIPS_LB035Q02 is not set
# CONFIG_DISPLAY_PANEL_TPO_TD028TTEC1 is not set
# CONFIG_DISPLAY_PANEL_TPO_TD043MTEA1 is not set
# CONFIG_FB_SSD1307 is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEOMODE_HELPERS=y
CONFIG_HDMI=y
#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_LOGO is not set
CONFIG_SOUND=y
# CONFIG_SOUND_OSS_CORE is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_DMAENGINE_PCM=y
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
CONFIG_SND_PCM_TIMER=y
# CONFIG_SND_SEQUENCER_OSS is not set
CONFIG_SND_HRTIMER=y
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_MAX_CARDS=32
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
# CONFIG_SND_DRIVERS is not set
#
# HD-Audio
#
CONFIG_SND_HDA_PREALLOC_SIZE=64
# CONFIG_SND_ARM is not set
# CONFIG_SND_SPI is not set
# CONFIG_SND_USB is not set
CONFIG_SND_SOC=y
# CONFIG_SND_ATMEL_SOC is not set
# CONFIG_SND_DAVINCI_SOC_MCASP is not set
# CONFIG_SND_DESIGNWARE_I2S is not set
#
# SoC Audio for Freescale CPUs
#
#
# Common SoC Audio options for Freescale CPUs:
#
# CONFIG_SND_SOC_FSL_ASRC is not set
# CONFIG_SND_SOC_FSL_SAI is not set
# CONFIG_SND_SOC_FSL_SSI is not set
# CONFIG_SND_SOC_FSL_SPDIF is not set
# CONFIG_SND_SOC_FSL_ESAI is not set
# CONFIG_SND_SOC_IMX_AUDMUX is not set
CONFIG_SND_OMAP_SOC=y
CONFIG_SND_OMAP_SOC_DMIC=y
CONFIG_SND_OMAP_SOC_MCPDM=y
# CONFIG_SND_OMAP_SOC_HDMI_AUDIO is not set
# CONFIG_SND_OMAP_SOC_RX51 is not set
# CONFIG_SND_OMAP_SOC_OMAP_TWL4030 is not set
CONFIG_SND_OMAP_SOC_OMAP_ABE_TWL6040=y
#
# Allwinner SoC Audio support
#
# CONFIG_SND_SUN4I_CODEC is not set
# CONFIG_SND_SOC_XTFPGA_I2S is not set
CONFIG_SND_SOC_I2C_AND_SPI=y
#
# CODEC drivers
#
# CONFIG_SND_SOC_AC97_CODEC is not set
# CONFIG_SND_SOC_ADAU1701 is not set
# CONFIG_SND_SOC_AK4104 is not set
# CONFIG_SND_SOC_AK4554 is not set
# CONFIG_SND_SOC_AK4613 is not set
# CONFIG_SND_SOC_AK4642 is not set
# CONFIG_SND_SOC_AK5386 is not set
# CONFIG_SND_SOC_ALC5623 is not set
# CONFIG_SND_SOC_CS35L32 is not set
# CONFIG_SND_SOC_CS42L51_I2C is not set
# CONFIG_SND_SOC_CS42L52 is not set
# CONFIG_SND_SOC_CS42L56 is not set
# CONFIG_SND_SOC_CS42L73 is not set
# CONFIG_SND_SOC_CS4265 is not set
# CONFIG_SND_SOC_CS4270 is not set
# CONFIG_SND_SOC_CS4271_I2C is not set
# CONFIG_SND_SOC_CS4271_SPI is not set
# CONFIG_SND_SOC_CS42XX8_I2C is not set
# CONFIG_SND_SOC_CS4349 is not set
CONFIG_SND_SOC_DMIC=y
# CONFIG_SND_SOC_ES8328 is not set
# CONFIG_SND_SOC_GTM601 is not set
# CONFIG_SND_SOC_PCM1681 is not set
# CONFIG_SND_SOC_PCM1792A is not set
# CONFIG_SND_SOC_PCM512x_I2C is not set
# CONFIG_SND_SOC_PCM512x_SPI is not set
# CONFIG_SND_SOC_RT5631 is not set
# CONFIG_SND_SOC_RT5677_SPI is not set
# CONFIG_SND_SOC_SGTL5000 is not set
# CONFIG_SND_SOC_SIRF_AUDIO_CODEC is not set
# CONFIG_SND_SOC_SPDIF is not set
# CONFIG_SND_SOC_SSM2602_SPI is not set
# CONFIG_SND_SOC_SSM2602_I2C is not set
# CONFIG_SND_SOC_SSM4567 is not set
# CONFIG_SND_SOC_STA32X is not set
# CONFIG_SND_SOC_STA350 is not set
# CONFIG_SND_SOC_STI_SAS is not set
# CONFIG_SND_SOC_TAS2552 is not set
# CONFIG_SND_SOC_TAS5086 is not set
# CONFIG_SND_SOC_TAS571X is not set
# CONFIG_SND_SOC_TFA9879 is not set
# CONFIG_SND_SOC_TLV320AIC23_I2C is not set
# CONFIG_SND_SOC_TLV320AIC23_SPI is not set
# CONFIG_SND_SOC_TLV320AIC31XX is not set
# CONFIG_SND_SOC_TLV320AIC3X is not set
# CONFIG_SND_SOC_TS3A227E is not set
CONFIG_SND_SOC_TWL6040=y
# CONFIG_SND_SOC_WM8510 is not set
# CONFIG_SND_SOC_WM8523 is not set
# CONFIG_SND_SOC_WM8580 is not set
# CONFIG_SND_SOC_WM8711 is not set
# CONFIG_SND_SOC_WM8728 is not set
# CONFIG_SND_SOC_WM8731 is not set
# CONFIG_SND_SOC_WM8737 is not set
# CONFIG_SND_SOC_WM8741 is not set
# CONFIG_SND_SOC_WM8750 is not set
# CONFIG_SND_SOC_WM8753 is not set
# CONFIG_SND_SOC_WM8770 is not set
# CONFIG_SND_SOC_WM8776 is not set
# CONFIG_SND_SOC_WM8804_I2C is not set
# CONFIG_SND_SOC_WM8804_SPI is not set
# CONFIG_SND_SOC_WM8903 is not set
# CONFIG_SND_SOC_WM8962 is not set
# CONFIG_SND_SOC_WM8978 is not set
# CONFIG_SND_SOC_TPA6130A2 is not set
# CONFIG_SND_SIMPLE_CARD is not set
# CONFIG_SOUND_PRIME is not set
#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y
#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_PRODIKEYS is not set
# CONFIG_HID_CP2112 is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_ELO is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_GT683R is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO is not set
CONFIG_HID_LOGITECH=y
# CONFIG_HID_LOGITECH_DJ is not set
# CONFIG_HID_LOGITECH_HIDPP is not set
# CONFIG_LOGITECH_FF is not set
CONFIG_LOGIRUMBLEPAD2_FF=y
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PENMOUNT is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THINGM is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=y
#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_OTG=y
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_OTG_FSM is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_HCD_OMAP=y
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set
#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
CONFIG_USB_WDM=y
# CONFIG_USB_TMC is not set
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set
#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set
#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set
#
# USB Physical Layer drivers
#
CONFIG_USB_PHY=y
CONFIG_NOP_USB_XCEIV=y
# CONFIG_AM335X_PHY_USB is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_ULPI is not set
# CONFIG_USB_GADGET is not set
# CONFIG_USB_LED_TRIG is not set
# CONFIG_UWB is not set
CONFIG_MMC=y
# CONFIG_MMC_DEBUG is not set
#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_MMC_BLOCK_BOUNCE=y
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_ARMMMCI is not set
# CONFIG_MMC_SDHCI is not set
# CONFIG_MMC_OMAP is not set
CONFIG_MMC_OMAP_HS=y
# CONFIG_MMC_DW is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MMC_USDHI6ROL0 is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
#
# LED drivers
#
# CONFIG_LEDS_BCM6328 is not set
# CONFIG_LEDS_BCM6358 is not set
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
CONFIG_LEDS_GPIO=y
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_LP5523 is not set
# CONFIG_LEDS_LP5562 is not set
# CONFIG_LEDS_LP8501 is not set
# CONFIG_LEDS_LP8860 is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_BLINKM is not set
# CONFIG_LEDS_SYSCON is not set
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_ONESHOT=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_GPIO is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
# CONFIG_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_HYM8563 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12057 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PALMAS is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
CONFIG_RTC_DRV_TWL4030=y
# CONFIG_RTC_DRV_TPS65910 is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
# CONFIG_RTC_DRV_RV8803 is not set
#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_DS3234 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_MCP795 is not set
#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_CMOS is not set
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_ZYNQMP is not set
#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_OMAP is not set
# CONFIG_RTC_DRV_PL030 is not set
# CONFIG_RTC_DRV_PL031 is not set
# CONFIG_RTC_DRV_SNVS is not set
#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_OF=y
# CONFIG_AMBA_PL08X is not set
CONFIG_DMA_OMAP=y
# CONFIG_FSL_EDMA is not set
# CONFIG_INTEL_IDMA64 is not set
# CONFIG_NBPFAXI_DMA is not set
# CONFIG_PL330_DMA is not set
# CONFIG_TI_CPPI41 is not set
# CONFIG_TI_EDMA is not set
# CONFIG_DW_DMAC is not set
#
# DMA Clients
#
# CONFIG_ASYNC_TX_DMA is not set
# CONFIG_DMATEST is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
#
# Virtio drivers
#
# CONFIG_VIRTIO_MMIO is not set
#
# Microsoft Hyper-V guest support
#
CONFIG_STAGING=y
# CONFIG_PRISM2_USB is not set
# CONFIG_COMEDI is not set
# CONFIG_RTLLIB is not set
# CONFIG_R8712U is not set
# CONFIG_R8188EU is not set
# CONFIG_R8723AU is not set
# CONFIG_VT6656 is not set
#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4 is not set
# CONFIG_STAGING_MEDIA is not set
#
# Android
#
# CONFIG_STAGING_BOARD is not set
# CONFIG_WIMAX_GDM72XX is not set
# CONFIG_LTE_GDM724X is not set
# CONFIG_LUSTRE_FS is not set
# CONFIG_DGAP is not set
# CONFIG_GS_FPGABOOT is not set
# CONFIG_COMMON_CLK_XLNX_CLKWZRD is not set
# CONFIG_FB_TFT is not set
# CONFIG_MOST is not set
# CONFIG_CHROME_PLATFORMS is not set
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
#
# Common Clock Framework
#
CONFIG_COMMON_CLK_VERSATILE=y
CONFIG_CLK_SP810=y
CONFIG_CLK_VEXPRESS_OSC=y
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI514 is not set
# CONFIG_COMMON_CLK_SI570 is not set
# CONFIG_COMMON_CLK_CDCE925 is not set
# CONFIG_CLK_TWL6040 is not set
# CONFIG_CLK_QORIQ is not set
# CONFIG_COMMON_CLK_PALMAS is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_COMMON_CLK_PXA is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
#
# Hardware Spinlock drivers
#
# CONFIG_HWSPINLOCK_OMAP is not set
#
# Clock Source drivers
#
CONFIG_CLKSRC_OF=y
CONFIG_CLKSRC_PROBE=y
CONFIG_CLKSRC_MMIO=y
CONFIG_CLKSRC_TI_32K=y
CONFIG_ARM_ARCH_TIMER=y
CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
CONFIG_ARM_GLOBAL_TIMER=y
CONFIG_ARM_TIMER_SP804=y
CONFIG_CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK=y
# CONFIG_ATMEL_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
CONFIG_CLKSRC_VERSATILE=y
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
#
# Generic IOMMU Pagetable Support
#
# CONFIG_IOMMU_IO_PGTABLE_LPAE is not set
CONFIG_OF_IOMMU=y
CONFIG_OMAP_IOMMU=y
# CONFIG_OMAP_IOMMU_DEBUG is not set
# CONFIG_ARM_SMMU is not set
#
# Remoteproc drivers
#
# CONFIG_OMAP_REMOTEPROC is not set
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
#
# SOC (System On Chip) specific Drivers
#
# CONFIG_SOC_BRCMSTB is not set
# CONFIG_SUNXI_SRAM is not set
# CONFIG_SOC_TI is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
CONFIG_MEMORY=y
# CONFIG_ARM_PL172_MPMC is not set
CONFIG_TI_EMIF=y
CONFIG_OMAP_GPMC=y
# CONFIG_OMAP_GPMC_DEBUG is not set
# CONFIG_IIO is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_FSL_FTM is not set
# CONFIG_PWM_PCA9685 is not set
# CONFIG_PWM_TIECAP is not set
# CONFIG_PWM_TIEHRPWM is not set
CONFIG_PWM_TWL=y
CONFIG_PWM_TWL_LED=y
CONFIG_IRQCHIP=y
CONFIG_ARM_GIC=y
CONFIG_OMAP_IRQCHIP=y
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set
#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_DM816X_USB is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_OMAP_CONTROL_PHY is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
#
# Performance monitor support
#
CONFIG_ARM_PMU=y
# CONFIG_RAS is not set
#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_NVMEM is not set
# CONFIG_STM is not set
# CONFIG_STM_DUMMY is not set
# CONFIG_STM_SOURCE_CONSOLE is not set
# CONFIG_INTEL_TH is not set
#
# FPGA Configuration Support
#
# CONFIG_FPGA is not set
#
# Firmware Drivers
#
# CONFIG_FIRMWARE_MEMMAP is not set
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_ENCRYPTION is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
CONFIG_BTRFS_FS=y
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_FANOTIFY_ACCESS_PERMISSIONS is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=y
# CONFIG_CUSE is not set
# CONFIG_OVERLAY_FS is not set
#
# Caches
#
# CONFIG_FSCACHE is not set
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_NTFS_FS=y
# CONFIG_NTFS_DEBUG is not set
# CONFIG_NTFS_RW is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
# CONFIG_NFS_V2 is not set
# CONFIG_NFS_V3 is not set
CONFIG_NFS_V4=y
CONFIG_NFS_SWAP=y
CONFIG_NFS_V4_1=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=y
CONFIG_PNFS_BLOCK=y
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DEBUG=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
# CONFIG_NFSD_V3_ACL is not set
CONFIG_NFSD_V4=y
# CONFIG_NFSD_PNFS is not set
CONFIG_NFSD_V4_SECURITY_LABEL=y
# CONFIG_NFSD_FAULT_INJECTION is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_SUNRPC_SWAP=y
CONFIG_SUNRPC_DEBUG=y
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=y
CONFIG_CIFS_STATS=y
# CONFIG_CIFS_STATS2 is not set
# CONFIG_CIFS_WEAK_PW_HASH is not set
# CONFIG_CIFS_UPCALL is not set
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
# CONFIG_CIFS_ACL is not set
# CONFIG_CIFS_DEBUG is not set
# CONFIG_CIFS_DFS_UPCALL is not set
# CONFIG_CIFS_SMB2 is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=y
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=y
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=y
#
# Kernel hacking
#
#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_PER_CPU_MAPS is not set
# CONFIG_DEBUG_HIGHMEM is not set
# CONFIG_DEBUG_SHIRQ is not set
#
# Debug Lockups and Hangs
#
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHED_INFO is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_TIMEKEEPING is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_PREEMPT is not set
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_STACKTRACE is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
# CONFIG_PROVE_RCU is not set
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_TORTURE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_MEMTEST is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
# CONFIG_ARM_PTDUMP is not set
# CONFIG_STRICT_DEVMEM is not set
# CONFIG_ARM_UNWIND is not set
# CONFIG_DEBUG_USER is not set
# CONFIG_DEBUG_LL is not set
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
# CONFIG_DEBUG_UART_8250 is not set
# CONFIG_DEBUG_UART_BCM63XX is not set
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
# CONFIG_PID_IN_CONTEXTIDR is not set
# CONFIG_DEBUG_SET_MODULE_RONX is not set
# CONFIG_CORESIGHT is not set
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
# CONFIG_ENCRYPTED_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
# CONFIG_SECURITY_NETWORK is not set
# CONFIG_SECURITY_PATH is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_YAMA is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
# CONFIG_IMA is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_XOR_BLOCKS=y
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_AKCIPHER2=y
# CONFIG_CRYPTO_RSA is not set
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=m
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_MCRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=m
#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_KEYWRAP is not set
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=y
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
CONFIG_CRYPTO_GHASH=m
# CONFIG_CRYPTO_POLY1305 is not set
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
CONFIG_CRYPTO_SHA256=y
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=y
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
# CONFIG_CRYPTO_HW is not set
# CONFIG_ASYMMETRIC_KEY_TYPE is not set
#
# Certificates for signature checking
#
# CONFIG_SYSTEM_TRUSTED_KEYRING is not set
# CONFIG_ARM_CRYPTO is not set
# CONFIG_BINARY_PRINTF is not set
#
# Library routines
#
CONFIG_RAID6_PQ=y
CONFIG_BITREVERSE=y
CONFIG_HAVE_ARCH_BITREVERSE=y
CONFIG_RATIONAL=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=y
# CONFIG_CRC8 is not set
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_DMA=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_CORDIC is not set
CONFIG_DDR=y
CONFIG_LIBFDT=y
CONFIG_OID_REGISTRY=y
CONFIG_FONT_SUPPORT=y
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_6x10 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
CONFIG_FONT_AUTOSELECT=y
# CONFIG_SG_SPLIT is not set
CONFIG_ARCH_HAS_SG_CHAIN=y
# CONFIG_VIRTUALIZATION is not set
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-19 4:13 ` John Stultz
@ 2016-02-19 17:33 ` Paul E. McKenney
2016-02-20 4:34 ` Ross Green
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-19 17:33 UTC (permalink / raw)
To: John Stultz
Cc: Ross Green, Mathieu Desnoyers, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote:
> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
> > Well a bonus extra!
> > Kept everything running and there was another stall.
> > So i have included the demsg output for perusal.
> >
> > Just to clear things up there is no hotplug involved in this system.
> > It is a standard Pandaboard ES Ti4460 two processor system.
> > I use this for testing as a generic armv7 processor, plus can keep it
> > just running along for testing for a long time. the system has a total
> > of 23-25 process running on average. Mainly standard daemons. There is
> > certainly no heavy processing going on. I run a series of benchmarks
> > that are cpu intensive for the first 20 miinutes after boot and then
> > just leave it idle away. checking every so often to see how it has
> > gone.
> > As mentioned I have observed these stalls going back to 3.17 kernel.
> > It will often take up to a week to record such a stall. I will
> > typically test every new release kernel, so the -rc? series will get
> > around a weeks testing.
>
> Sorry. Kind of hopping in a bit late here. Is this always happening
> with just the pandaboard? Or are you seeing this on different
> machines?
>
> Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
> something is going awry there?
Excellent point -- timekeeping issues have caused this sort of issue
in the past.
Ross, on your next test, could you please enable CONFIG_DEBUG_TIMEKEEPING
as John suggests?
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-19 17:33 ` Paul E. McKenney
@ 2016-02-20 4:34 ` Ross Green
2016-02-20 6:32 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-02-20 4:34 UTC (permalink / raw)
To: Paul McKenney
Cc: John Stultz, Mathieu Desnoyers, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote:
>> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
>> > Well a bonus extra!
>> > Kept everything running and there was another stall.
>> > So i have included the demsg output for perusal.
>> >
>> > Just to clear things up there is no hotplug involved in this system.
>> > It is a standard Pandaboard ES Ti4460 two processor system.
>> > I use this for testing as a generic armv7 processor, plus can keep it
>> > just running along for testing for a long time. the system has a total
>> > of 23-25 process running on average. Mainly standard daemons. There is
>> > certainly no heavy processing going on. I run a series of benchmarks
>> > that are cpu intensive for the first 20 miinutes after boot and then
>> > just leave it idle away. checking every so often to see how it has
>> > gone.
>> > As mentioned I have observed these stalls going back to 3.17 kernel.
>> > It will often take up to a week to record such a stall. I will
>> > typically test every new release kernel, so the -rc? series will get
>> > around a weeks testing.
>>
>> Sorry. Kind of hopping in a bit late here. Is this always happening
>> with just the pandaboard? Or are you seeing this on different
>> machines?
>>
>> Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
>> something is going awry there?
>
> Excellent point -- timekeeping issues have caused this sort of issue
> in the past.
>
> Ross, on your next test, could you please enable CONFIG_DEBUG_TIMEKEEPING
> as John suggests?
>
> Thanx, Paul
>
As John has suggested have already enabled CONFIG_DEBUG_TIMEKEEPING.
So far just on 1 day running.
Sigh...!! Nothing to report as yet, only one day on the clock.
Its like watching grass grow!
Regards,
Ross Green
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-20 4:34 ` Ross Green
@ 2016-02-20 6:32 ` Paul E. McKenney
2016-02-21 5:04 ` Ross Green
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-20 6:32 UTC (permalink / raw)
To: Ross Green
Cc: John Stultz, Mathieu Desnoyers, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
On Sat, Feb 20, 2016 at 03:34:30PM +1100, Ross Green wrote:
> On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
> > On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote:
> >> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
> >> > Well a bonus extra!
> >> > Kept everything running and there was another stall.
> >> > So i have included the demsg output for perusal.
> >> >
> >> > Just to clear things up there is no hotplug involved in this system.
> >> > It is a standard Pandaboard ES Ti4460 two processor system.
> >> > I use this for testing as a generic armv7 processor, plus can keep it
> >> > just running along for testing for a long time. the system has a total
> >> > of 23-25 process running on average. Mainly standard daemons. There is
> >> > certainly no heavy processing going on. I run a series of benchmarks
> >> > that are cpu intensive for the first 20 miinutes after boot and then
> >> > just leave it idle away. checking every so often to see how it has
> >> > gone.
> >> > As mentioned I have observed these stalls going back to 3.17 kernel.
> >> > It will often take up to a week to record such a stall. I will
> >> > typically test every new release kernel, so the -rc? series will get
> >> > around a weeks testing.
> >>
> >> Sorry. Kind of hopping in a bit late here. Is this always happening
> >> with just the pandaboard? Or are you seeing this on different
> >> machines?
> >>
> >> Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
> >> something is going awry there?
> >
> > Excellent point -- timekeeping issues have caused this sort of issue
> > in the past.
> >
> > Ross, on your next test, could you please enable CONFIG_DEBUG_TIMEKEEPING
> > as John suggests?
> >
> > Thanx, Paul
> >
> As John has suggested have already enabled CONFIG_DEBUG_TIMEKEEPING.
>
> So far just on 1 day running.
>
> Sigh...!! Nothing to report as yet, only one day on the clock.
> Its like watching grass grow!
I hear you! Though I was thinking in terms of watching paint dry...
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-20 6:32 ` Paul E. McKenney
@ 2016-02-21 5:04 ` Ross Green
2016-02-21 18:15 ` Ross Green
0 siblings, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-02-21 5:04 UTC (permalink / raw)
To: Paul McKenney
Cc: John Stultz, Mathieu Desnoyers, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
On Sat, Feb 20, 2016 at 5:32 PM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> On Sat, Feb 20, 2016 at 03:34:30PM +1100, Ross Green wrote:
>> On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney
>> <paulmck@linux.vnet.ibm.com> wrote:
>> > On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote:
>> >> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
>> >> > Well a bonus extra!
>> >> > Kept everything running and there was another stall.
>> >> > So i have included the demsg output for perusal.
>> >> >
>> >> > Just to clear things up there is no hotplug involved in this system.
>> >> > It is a standard Pandaboard ES Ti4460 two processor system.
>> >> > I use this for testing as a generic armv7 processor, plus can keep it
>> >> > just running along for testing for a long time. the system has a total
>> >> > of 23-25 process running on average. Mainly standard daemons. There is
>> >> > certainly no heavy processing going on. I run a series of benchmarks
>> >> > that are cpu intensive for the first 20 miinutes after boot and then
>> >> > just leave it idle away. checking every so often to see how it has
>> >> > gone.
>> >> > As mentioned I have observed these stalls going back to 3.17 kernel.
>> >> > It will often take up to a week to record such a stall. I will
>> >> > typically test every new release kernel, so the -rc? series will get
>> >> > around a weeks testing.
>> >>
>> >> Sorry. Kind of hopping in a bit late here. Is this always happening
>> >> with just the pandaboard? Or are you seeing this on different
>> >> machines?
>> >>
>> >> Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
>> >> something is going awry there?
>> >
>> > Excellent point -- timekeeping issues have caused this sort of issue
>> > in the past.
>> >
>> > Ross, on your next test, could you please enable CONFIG_DEBUG_TIMEKEEPING
>> > as John suggests?
>> >
>> > Thanx, Paul
>> >
>> As John has suggested have already enabled CONFIG_DEBUG_TIMEKEEPING.
>>
>> So far just on 1 day running.
>>
>> Sigh...!! Nothing to report as yet, only one day on the clock.
>> Its like watching grass grow!
>
> I hear you! Though I was thinking in terms of watching paint dry...
>
> Thanx, Paul
>
Yes,
but with paint drying there is an end point!
Grass just keeps on growing ...
More like the children in the back of the car ...
Are we there yet? ...
Well still nothing .. to report. I have just built a 4.5-rc5, but will
wait till I get some outcome from the previous test. That can't be too
much longer!
In hope,
Ross Green
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-21 5:04 ` Ross Green
@ 2016-02-21 18:15 ` Ross Green
2016-02-23 20:34 ` Mathieu Desnoyers
0 siblings, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-02-21 18:15 UTC (permalink / raw)
To: Paul McKenney
Cc: John Stultz, Mathieu Desnoyers, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 3233 bytes --]
On Sun, Feb 21, 2016 at 4:04 PM, Ross Green <rgkernel@gmail.com> wrote:
> On Sat, Feb 20, 2016 at 5:32 PM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
>> On Sat, Feb 20, 2016 at 03:34:30PM +1100, Ross Green wrote:
>>> On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney
>>> <paulmck@linux.vnet.ibm.com> wrote:
>>> > On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote:
>>> >> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
>>> >> > Well a bonus extra!
>>> >> > Kept everything running and there was another stall.
>>> >> > So i have included the demsg output for perusal.
>>> >> >
>>> >> > Just to clear things up there is no hotplug involved in this system.
>>> >> > It is a standard Pandaboard ES Ti4460 two processor system.
>>> >> > I use this for testing as a generic armv7 processor, plus can keep it
>>> >> > just running along for testing for a long time. the system has a total
>>> >> > of 23-25 process running on average. Mainly standard daemons. There is
>>> >> > certainly no heavy processing going on. I run a series of benchmarks
>>> >> > that are cpu intensive for the first 20 miinutes after boot and then
>>> >> > just leave it idle away. checking every so often to see how it has
>>> >> > gone.
>>> >> > As mentioned I have observed these stalls going back to 3.17 kernel.
>>> >> > It will often take up to a week to record such a stall. I will
>>> >> > typically test every new release kernel, so the -rc? series will get
>>> >> > around a weeks testing.
>>> >>
>>> >> Sorry. Kind of hopping in a bit late here. Is this always happening
>>> >> with just the pandaboard? Or are you seeing this on different
>>> >> machines?
>>> >>
>>> >> Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
>>> >> something is going awry there?
>>> >
>>> > Excellent point -- timekeeping issues have caused this sort of issue
>>> > in the past.
>>> >
>>> > Ross, on your next test, could you please enable CONFIG_DEBUG_TIMEKEEPING
>>> > as John suggests?
>>> >
>>> > Thanx, Paul
>>> >
>>> As John has suggested have already enabled CONFIG_DEBUG_TIMEKEEPING.
>>>
>>> So far just on 1 day running.
>>>
>>> Sigh...!! Nothing to report as yet, only one day on the clock.
>>> Its like watching grass grow!
>>
>> I hear you! Though I was thinking in terms of watching paint dry...
>>
>> Thanx, Paul
>>
> Yes,
>
> but with paint drying there is an end point!
> Grass just keeps on growing ...
>
> More like the children in the back of the car ...
> Are we there yet? ...
>
> Well still nothing .. to report. I have just built a 4.5-rc5, but will
> wait till I get some outcome from the previous test. That can't be too
> much longer!
>
> In hope,
>
> Ross Green
Patience little ones ...
Well after 2 days plus running pulled another stall.
This is with 4.5-rc4 and CONFIG_DEBUG_TIMEKEEPING set.
Can't see anything related to the TIMEKEEPING.
Anyway here is the dmesg output for people to look at.
Paul, I was going to move onto 4.5-rc5 kernel, is there something else
that you want me to test with that, Anyone else have any suggestions
or ideas?
Regards,
Ross Green
[-- Attachment #2: dmesg-4.5-rc4-3 --]
[-- Type: application/octet-stream, Size: 25170 bytes --]
$ uptime
04:44:22 up 2 days, 8:33, load average: 0.07, 0.09, 0.09
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.5.0-rc4-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #2 SMP PREEMPT Fri Feb 19 19:33:54 AEDT 2016
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c09662c0, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7ab000 s17984 r8192 d22976 u49152
[ 0.000000] pcpu-alloc: s17984 r8192 d22976 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027232K/1046528K available (6879K kernel code, 252K rwdata, 2156K rodata, 304K init, 298K bss, 19296K reserved, 0K cma-reserved, 260096K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08db0d4 (9037 kB)
.init : 0xc08dc000 - 0xc0928000 ( 304 kB)
.data : 0xc0928000 - 0xc09672c0 ( 253 kB)
.bss : 0xc096a000 - 0xc09b48b8 ( 299 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000030] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000885] Console: colour dummy device 80x30
[ 0.000885] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089202] pid_max: default: 32768 minimum: 301
[ 0.089263] Security Framework initialized
[ 0.089324] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089324] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089935] CPU: Testing write buffer coherency: ok
[ 0.090179] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090240] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.209197] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.209259] Brought up 2 CPUs
[ 0.209289] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.209289] CPU: All CPU(s) started in SVC mode.
[ 0.210083] devtmpfs: initialized
[ 0.227081] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.227569] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.227722] xor: measuring software checksum speed
[ 0.319183] arm4regs : 1006.000 MB/sec
[ 0.419189] 8regs : 803.600 MB/sec
[ 0.519165] 32regs : 761.200 MB/sec
[ 0.519195] xor: using function: arm4regs (1006.000 MB/sec)
[ 0.519439] pinctrl core: initialized pinctrl subsystem
[ 0.521331] NET: Registered protocol family 16
[ 0.522338] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.524078] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.525604] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.631103] OMAP GPIO hardware version 0.1
[ 0.636413] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.636444] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.636962] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637359] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637725] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.649597] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.649902] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.655883] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.655883] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.656524] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.656738] OMAP DMA hardware revision 0.0
[ 0.909423] raid6: int32x1 gen() 103 MB/s
[ 1.079498] raid6: int32x1 xor() 82 MB/s
[ 1.249267] raid6: int32x2 gen() 134 MB/s
[ 1.419372] raid6: int32x2 xor() 99 MB/s
[ 1.589385] raid6: int32x4 gen() 145 MB/s
[ 1.759307] raid6: int32x4 xor() 98 MB/s
[ 1.929260] raid6: int32x8 gen() 160 MB/s
[ 2.099365] raid6: int32x8 xor() 94 MB/s
[ 2.099365] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.099365] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.099395] raid6: using intx1 recovery algorithm
[ 2.105468] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.179321] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.183593] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.183715] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.185821] SCSI subsystem initialized
[ 2.186096] usbcore: registered new interface driver usbfs
[ 2.186248] usbcore: registered new interface driver hub
[ 2.186401] usbcore: registered new device driver usb
[ 2.187347] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.187408] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.187438] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.187469] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.187744] Linux video capture interface: v2.00
[ 2.188507] Advanced Linux Sound Architecture Driver Initialized.
[ 2.189971] clocksource: Switched to clocksource 32k_counter
[ 2.204315] NET: Registered protocol family 2
[ 2.204864] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.204956] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.205108] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.205169] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.205230] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.205413] NET: Registered protocol family 1
[ 2.205810] RPC: Registered named UNIX socket transport module.
[ 2.205841] RPC: Registered udp transport module.
[ 2.205841] RPC: Registered tcp transport module.
[ 2.205841] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.208007] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.210235] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.239166] NFS: Registering the id_resolver key type
[ 2.239196] Key type id_resolver registered
[ 2.239196] Key type id_legacy registered
[ 2.239227] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.239257] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.250488] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.250762] fuse init (API version 7.24)
[ 2.253631] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.253692] bounce: pool size: 64 pages
[ 2.253723] io scheduler noop registered
[ 2.253753] io scheduler deadline registered
[ 2.253784] io scheduler cfq registered (default)
[ 2.254669] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.254882] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.257873] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.259490] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.259643] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.260192] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.260681] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.157531] console [ttyO2] enabled
[ 3.161712] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.172424] [drm] Initialized drm 1.1.0 20060810
[ 3.178955] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.186340] OMAP DSS rev 4.0
[ 3.189514] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.197875] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.206481] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.258361] loop: module loaded
[ 3.264434] usbcore: registered new interface driver smsc95xx
[ 3.270599] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.277404] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.299987] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.305664] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.313720] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.339996] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.346374] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.353515] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.361083] usb usb1: Product: EHCI Host Controller
[ 3.366180] usb usb1: Manufacturer: Linux 4.5.0-rc4-panda ehci_hcd
[ 3.372650] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.378234] hub 1-0:1.0: USB hub found
[ 3.382232] hub 1-0:1.0: 3 ports detected
[ 3.387145] usbcore: registered new interface driver cdc_wdm
[ 3.393218] usbcore: registered new interface driver usb-storage
[ 3.399932] i2c /dev entries driver
[ 3.403747] usbcore: registered new interface driver uvcvideo
[ 3.409729] USB Video Class driver (1.1.1)
[ 3.415252] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.422821] device-mapper: uevent: version 1.0.3
[ 3.427978] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.491424] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.497497] usbcore: registered new interface driver usbhid
[ 3.503356] usbhid: USB HID core driver
[ 3.507904] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.517242] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.528778] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.536743] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.544311] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.550048] Initializing XFRM netlink socket
[ 3.554595] NET: Registered protocol family 17
[ 3.559570] Key type dns_resolver registered
[ 3.564270] twl: not initialized
[ 3.567687] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.576171] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.584686] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.593170] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.601684] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.610168] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.618652] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.627136] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.634429] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.640197] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.647552] omap2_set_init_voltage: unable to set vdd_core
[ 3.653381] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.660675] omap2_set_init_voltage: unable to set vdd_iva
[ 3.667602] Power Management for TI OMAP4+ devices.
[ 3.672790] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.680023] ThumbEE CPU extension supported.
[ 3.680023] Registering SWP/SWPB emulation handler
[ 3.684631] SmartReflex Class3 initialized
[ 3.714111] Btrfs loaded
[ 3.719268] dmm 4e000000.dmm: initialized all PAT entries
[ 3.719726] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.744720] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.770660] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.777099] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.785766] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.805755] twl6040 0-004b: clk32k is not handled
[ 3.813476] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.820220] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.827056] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.833801] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.840087] omap_hsmmc 4809c000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.870208] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.877380] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.885742] hub 1-1:1.0: USB hub found
[ 3.889831] hub 1-1:1.0: 5 ports detected
[ 3.900604] omap_hsmmc 480d5000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 4.035125] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.048919] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 4.060760] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-02-19 09:11:01 UTC (1455873061)
[ 4.071014] sr_init: No PMIC hook to init smartreflex
[ 4.076599] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.084991] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.093353] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.105468] mmc1: new SDIO card at address 0001
[ 4.114013] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.114013] vwl1271: disabling
[ 4.120666] VDAC: disabling
[ 4.121124] VANA: disabling
[ 4.121551] VUSB: disabling
[ 4.121765] ALSA device list:
[ 4.121765] #0: PandaBoardES
[ 4.141418] Waiting for root device /dev/mmcblk0p2...
[ 4.146911] mmc0: new high speed SDHC card at address e624
[ 4.153320] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.187683] mmcblk0: p1 p2 p3 p4
[ 4.229980] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.264984] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.274322] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.316009] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.324005] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.340850] devtmpfs: mounted
[ 4.344329] Freeing unused kernel memory: 304K (c08dc000 - c0928000)
[ 4.361633] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.368896] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.379486] smsc95xx v1.0.4
[ 4.467376] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, 6e:35:2b:90:2e:10
[ 4.703063] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.758605] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.895751] random: dd urandom read with 31 bits of entropy available
[ 8.906768] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 18.698944] Bluetooth: Core ver 2.21
[ 18.703186] NET: Registered protocol family 31
[ 18.708099] Bluetooth: HCI device and connection manager initialized
[ 18.715240] Bluetooth: HCI socket layer initialized
[ 18.720825] Bluetooth: L2CAP socket layer initialized
[ 18.726287] Bluetooth: SCO socket layer initialized
[ 26.347351] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 26.358642] NFSD: starting 90-second grace period (net c09607c0)
[ 48.742340] random: nonblocking pool is initialized
[ 146.720031] NFSD: Unable to end grace period: -110
[ 179.328674] wlcore: loaded
[ 189.669311] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 193.170959] wlan0: authenticate with 90:f6:52:81:ee:70
[ 193.185272] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 193.192993] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 193.200256] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 193.207519] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 196.753845] wlan0: authenticate with 90:f6:52:81:ee:70
[ 196.767944] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 196.775329] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 196.782440] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 196.789764] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 200.636230] wlan0: authenticate with 90:f6:52:81:ee:70
[ 200.680450] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 200.688446] wlan0: authenticated
[ 200.711700] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 200.722381] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 200.737976] wlan0: associated
[ 200.798187] wlcore: Association completed.
[ 785.829315] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[197112.778137] INFO: rcu_preempt self-detected stall on CPU
[197112.781707] 0-...: (1 GPs behind) idle=ff5/1/0 softirq=1813827/1813828 fqs=1
[197112.784942] INFO: rcu_preempt detected stalls on CPUs/tasks:
[197112.784942] 0-...: (1 GPs behind) idle=ff5/1/0 softirq=1813827/1813828 fqs=1
[197112.784973] (detected by 1, t=11981 jiffies, g=613144, c=613143, q=188)
[197112.784973] Task dump for CPU 0:
[197112.784973] swapper/0 R running 0 0 0 0x00000000
[197112.785003] Backtrace:
[197112.785003] Backtrace aborted due to bad frame pointer <c0929f54>
[197112.824920] (t=11981 jiffies g=613144 c=613143 q=188)
[197112.834930] Task dump for CPU 0:
[197112.834930] swapper/0 R running 0 0 0 0x00000002
[197112.834930] Backtrace:
[197112.834930] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[197112.858886] r7:c092a518 r6:800c0193 r5:00000000 r4:c092d180
[197112.858886] [<c0014164>] (show_stack) from [<c005ac68>] (sched_show_task+0xbc/0x110)
[197112.870941] [<c005abac>] (sched_show_task) from [<c005d0f8>] (dump_cpu_task+0x40/0x48)
[197112.878906] r5:c093a080 r4:00000000
[197112.884918] [<c005d0b8>] (dump_cpu_task) from [<c00828c4>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[197112.894500] r5:c093a080 r4:00000001
[197112.895751] [<c0082828>] (rcu_dump_cpu_stacks) from [<c0086d28>] (rcu_check_callbacks+0x500/0x8e4)
[197112.904937] r9:c093a080 r8:c092a628 r7:2ee89000 r6:c0926340 r5:c093a080 r4:ef7af340
[197112.904937] [<c0086828>] (rcu_check_callbacks) from [<c0089f58>] (update_process_times+0x40/0x6c)
[197112.904937] r10:c009b9bc r9:00000001 r8:ef7abc4c r7:0000b346 r6:194762c0 r5:00000000
[197112.934173] r4:c092d180
[197112.935089] [<c0089f18>] (update_process_times) from [<c009b9b8>] (tick_sched_handle+0x50/0x54)
[197112.944946] r5:c0929f10 r4:ef7abe40
[197112.944946] [<c009b968>] (tick_sched_handle) from [<c009ba0c>] (tick_sched_timer+0x50/0x94)
[197112.959075] [<c009b9bc>] (tick_sched_timer) from [<c008a99c>] (__hrtimer_run_queues+0x110/0x1a4)
[197112.968475] r7:00000000 r6:ef7abc40 r5:ef7abe40 r4:ef7abc00
[197112.974578] [<c008a88c>] (__hrtimer_run_queues) from [<c008b030>] (hrtimer_interrupt+0xac/0x1fc)
[197112.978240] r10:ef7abc78 r9:ef7abc98 r8:ef7abc14 r7:ef7abcb8 r6:ffffffff r5:00000003
[197112.984924] r4:ef7abc00
[197112.995147] [<c008af84>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[197112.995147] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[197113.012023] r4:00000001
[197113.012023] [<c00171d4>] (twd_handler) from [<c007d02c>] (handle_percpu_devid_irq+0x74/0x8c)
[197113.023834] r5:ef005cc0 r4:ef7b1780
[197113.027099] [<c007cfb8>] (handle_percpu_devid_irq) from [<c0078ab4>] (generic_handle_irq+0x2c/0x3c)
[197113.037384] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092341c
[197113.037384] [<c0078a88>] (generic_handle_irq) from [<c0078dac>] (__handle_domain_irq+0x64/0xbc)
[197113.037384] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[197113.059997] r9:fa241100 r8:fa240100 r7:c0929f10 r6:fa24010c r5:c092a7a8 r4:c0947f48
[197113.059997] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[197113.075073] Exception stack(0xc0929f10 to 0xc0929f58)
[197113.075073] 9f00: 00000000 ef7ab390 fe600000 00000000
[197113.094451] 9f20: c0928000 c092a49c c092236c c0929f80 c0967065 c0967065 c092a4ec c0929f6c
[197113.095703] 9f40: c0929f4c c0929f60 c0028a30 c0010ca0 600c0113 ffffffff
[197113.095703] r9:c0967065 r8:c0967065 r7:c0929f44 r6:ffffffff r5:600c0113 r4:c0010ca0
[197113.095703] [<c0010c78>] (arch_cpu_idle) from [<c006f720>] (default_idle_call+0x28/0x34)
[197113.095703] [<c006f6f8>] (default_idle_call) from [<c006f844>] (cpu_startup_entry+0x118/0x188)
[197113.095703] [<c006f72c>] (cpu_startup_entry) from [<c06b9e68>] (rest_init+0x90/0x94)
[197113.095703] r7:ffffffff r4:00000002
[197113.095703] [<c06b9dd8>] (rest_init) from [<c08dcd0c>] (start_kernel+0x390/0x39c)
[197113.151000] r5:c096a000 r4:00000000
[197113.158843] [<c08dc97c>] (start_kernel) from [<8000807c>] (0x8000807c)
$ zcat /proc/config.gz | grep TIME
CONFIG_BUILDTIME_EXTABLE_SORT=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_HIGH_RES_TIMERS=y
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_TIMERFD=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_OMAP_32K_TIMER=y
CONFIG_OMAP_DM_TIMER=y
CONFIG_HAVE_ARM_ARCH_TIMER=y
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
CONFIG_SND_TIMER=y
CONFIG_SND_PCM_TIMER=y
CONFIG_SND_HRTIMER=y
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_LEDS_TRIGGER_TIMER=y
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_ARM_ARCH_TIMER=y
CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
CONFIG_ARM_GLOBAL_TIMER=y
CONFIG_ARM_TIMER_SP804=y
CONFIG_CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK=y
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_PWM_OMAP_DMTIMER is not set
CONFIG_PRINTK_TIME=y
CONFIG_PANIC_TIMEOUT=0
CONFIG_DEBUG_TIMEKEEPING=y
# CONFIG_TIMER_STATS is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
$
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-21 18:15 ` Ross Green
@ 2016-02-23 20:34 ` Mathieu Desnoyers
2016-02-23 20:55 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-02-23 20:34 UTC (permalink / raw)
To: Ross Green, John Stultz, Thomas Gleixner
Cc: Paul E. McKenney, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, Josh Triplett, rostedt,
David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 4171 bytes --]
----- On Feb 21, 2016, at 1:15 PM, Ross Green rgkernel@gmail.com wrote:
> On Sun, Feb 21, 2016 at 4:04 PM, Ross Green <rgkernel@gmail.com> wrote:
>> On Sat, Feb 20, 2016 at 5:32 PM, Paul E. McKenney
>> <paulmck@linux.vnet.ibm.com> wrote:
>>> On Sat, Feb 20, 2016 at 03:34:30PM +1100, Ross Green wrote:
>>>> On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney
>>>> <paulmck@linux.vnet.ibm.com> wrote:
>>>> > On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote:
>>>> >> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
>>>> >> > Well a bonus extra!
>>>> >> > Kept everything running and there was another stall.
>>>> >> > So i have included the demsg output for perusal.
>>>> >> >
>>>> >> > Just to clear things up there is no hotplug involved in this system.
>>>> >> > It is a standard Pandaboard ES Ti4460 two processor system.
>>>> >> > I use this for testing as a generic armv7 processor, plus can keep it
>>>> >> > just running along for testing for a long time. the system has a total
>>>> >> > of 23-25 process running on average. Mainly standard daemons. There is
>>>> >> > certainly no heavy processing going on. I run a series of benchmarks
>>>> >> > that are cpu intensive for the first 20 miinutes after boot and then
>>>> >> > just leave it idle away. checking every so often to see how it has
>>>> >> > gone.
>>>> >> > As mentioned I have observed these stalls going back to 3.17 kernel.
>>>> >> > It will often take up to a week to record such a stall. I will
>>>> >> > typically test every new release kernel, so the -rc? series will get
>>>> >> > around a weeks testing.
>>>> >>
>>>> >> Sorry. Kind of hopping in a bit late here. Is this always happening
>>>> >> with just the pandaboard? Or are you seeing this on different
>>>> >> machines?
>>>> >>
>>>> >> Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
>>>> >> something is going awry there?
>>>> >
>>>> > Excellent point -- timekeeping issues have caused this sort of issue
>>>> > in the past.
>>>> >
>>>> > Ross, on your next test, could you please enable CONFIG_DEBUG_TIMEKEEPING
>>>> > as John suggests?
>>>> >
>>>> > Thanx, Paul
>>>> >
>>>> As John has suggested have already enabled CONFIG_DEBUG_TIMEKEEPING.
>>>>
>>>> So far just on 1 day running.
>>>>
>>>> Sigh...!! Nothing to report as yet, only one day on the clock.
>>>> Its like watching grass grow!
>>>
>>> I hear you! Though I was thinking in terms of watching paint dry...
>>>
>>> Thanx, Paul
>>>
>> Yes,
>>
>> but with paint drying there is an end point!
>> Grass just keeps on growing ...
>>
>> More like the children in the back of the car ...
>> Are we there yet? ...
>>
>> Well still nothing .. to report. I have just built a 4.5-rc5, but will
>> wait till I get some outcome from the previous test. That can't be too
>> much longer!
>>
>> In hope,
>>
>> Ross Green
> Patience little ones ...
>
> Well after 2 days plus running pulled another stall.
> This is with 4.5-rc4 and CONFIG_DEBUG_TIMEKEEPING set.
>
> Can't see anything related to the TIMEKEEPING.
>
> Anyway here is the dmesg output for people to look at.
>
> Paul, I was going to move onto 4.5-rc5 kernel, is there something else
> that you want me to test with that, Anyone else have any suggestions
> or ideas?
Starting from kernel 3.17, if we request a e.g. 1000 jiffies schedule_timeout
on a HZ=1000 kernel, is there an upper bound to the number of jiffies it
can actually take before the timeout happens, especially on idle systems ?
I remember a talk from Thomas Gleixner on the new timer wheel which could
add some imprecision to those timeouts. Not sure in which kernel version it
got in though.
My thinking is that it might be a good idea to try using hrtimers rather than
a jiffies-based timeout to awaken the RCU thread if it's really important to
run in a bounded amount of jiffies. Or else the jiffies-based sanity check
that triggers the warning is perhaps too strict.
Thoughts ?
Thanks,
Mathieu
>
> Regards,
>
> Ross Green
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
[-- Attachment #2: dmesg-4.5-rc4-3 --]
[-- Type: application/octet-stream, Size: 25170 bytes --]
$ uptime
04:44:22 up 2 days, 8:33, load average: 0.07, 0.09, 0.09
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.5.0-rc4-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #2 SMP PREEMPT Fri Feb 19 19:33:54 AEDT 2016
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c09662c0, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7ab000 s17984 r8192 d22976 u49152
[ 0.000000] pcpu-alloc: s17984 r8192 d22976 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027232K/1046528K available (6879K kernel code, 252K rwdata, 2156K rodata, 304K init, 298K bss, 19296K reserved, 0K cma-reserved, 260096K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08db0d4 (9037 kB)
.init : 0xc08dc000 - 0xc0928000 ( 304 kB)
.data : 0xc0928000 - 0xc09672c0 ( 253 kB)
.bss : 0xc096a000 - 0xc09b48b8 ( 299 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000030] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000885] Console: colour dummy device 80x30
[ 0.000885] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089202] pid_max: default: 32768 minimum: 301
[ 0.089263] Security Framework initialized
[ 0.089324] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089324] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089935] CPU: Testing write buffer coherency: ok
[ 0.090179] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090240] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.209197] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.209259] Brought up 2 CPUs
[ 0.209289] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.209289] CPU: All CPU(s) started in SVC mode.
[ 0.210083] devtmpfs: initialized
[ 0.227081] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.227569] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.227722] xor: measuring software checksum speed
[ 0.319183] arm4regs : 1006.000 MB/sec
[ 0.419189] 8regs : 803.600 MB/sec
[ 0.519165] 32regs : 761.200 MB/sec
[ 0.519195] xor: using function: arm4regs (1006.000 MB/sec)
[ 0.519439] pinctrl core: initialized pinctrl subsystem
[ 0.521331] NET: Registered protocol family 16
[ 0.522338] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.524078] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.525604] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.631103] OMAP GPIO hardware version 0.1
[ 0.636413] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.636444] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.636962] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637359] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637725] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.649597] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.649902] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.655883] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.655883] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.656524] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.656738] OMAP DMA hardware revision 0.0
[ 0.909423] raid6: int32x1 gen() 103 MB/s
[ 1.079498] raid6: int32x1 xor() 82 MB/s
[ 1.249267] raid6: int32x2 gen() 134 MB/s
[ 1.419372] raid6: int32x2 xor() 99 MB/s
[ 1.589385] raid6: int32x4 gen() 145 MB/s
[ 1.759307] raid6: int32x4 xor() 98 MB/s
[ 1.929260] raid6: int32x8 gen() 160 MB/s
[ 2.099365] raid6: int32x8 xor() 94 MB/s
[ 2.099365] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.099365] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.099395] raid6: using intx1 recovery algorithm
[ 2.105468] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.179321] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.183593] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.183715] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.185821] SCSI subsystem initialized
[ 2.186096] usbcore: registered new interface driver usbfs
[ 2.186248] usbcore: registered new interface driver hub
[ 2.186401] usbcore: registered new device driver usb
[ 2.187347] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.187408] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.187438] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.187469] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.187744] Linux video capture interface: v2.00
[ 2.188507] Advanced Linux Sound Architecture Driver Initialized.
[ 2.189971] clocksource: Switched to clocksource 32k_counter
[ 2.204315] NET: Registered protocol family 2
[ 2.204864] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.204956] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.205108] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.205169] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.205230] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.205413] NET: Registered protocol family 1
[ 2.205810] RPC: Registered named UNIX socket transport module.
[ 2.205841] RPC: Registered udp transport module.
[ 2.205841] RPC: Registered tcp transport module.
[ 2.205841] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.208007] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.210235] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.239166] NFS: Registering the id_resolver key type
[ 2.239196] Key type id_resolver registered
[ 2.239196] Key type id_legacy registered
[ 2.239227] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.239257] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.250488] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.250762] fuse init (API version 7.24)
[ 2.253631] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.253692] bounce: pool size: 64 pages
[ 2.253723] io scheduler noop registered
[ 2.253753] io scheduler deadline registered
[ 2.253784] io scheduler cfq registered (default)
[ 2.254669] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.254882] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.257873] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.259490] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.259643] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.260192] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.260681] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.157531] console [ttyO2] enabled
[ 3.161712] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.172424] [drm] Initialized drm 1.1.0 20060810
[ 3.178955] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.186340] OMAP DSS rev 4.0
[ 3.189514] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.197875] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.206481] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.258361] loop: module loaded
[ 3.264434] usbcore: registered new interface driver smsc95xx
[ 3.270599] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.277404] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.299987] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.305664] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.313720] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.339996] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.346374] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.353515] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.361083] usb usb1: Product: EHCI Host Controller
[ 3.366180] usb usb1: Manufacturer: Linux 4.5.0-rc4-panda ehci_hcd
[ 3.372650] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.378234] hub 1-0:1.0: USB hub found
[ 3.382232] hub 1-0:1.0: 3 ports detected
[ 3.387145] usbcore: registered new interface driver cdc_wdm
[ 3.393218] usbcore: registered new interface driver usb-storage
[ 3.399932] i2c /dev entries driver
[ 3.403747] usbcore: registered new interface driver uvcvideo
[ 3.409729] USB Video Class driver (1.1.1)
[ 3.415252] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.422821] device-mapper: uevent: version 1.0.3
[ 3.427978] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.491424] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.497497] usbcore: registered new interface driver usbhid
[ 3.503356] usbhid: USB HID core driver
[ 3.507904] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.517242] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.528778] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.536743] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.544311] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.550048] Initializing XFRM netlink socket
[ 3.554595] NET: Registered protocol family 17
[ 3.559570] Key type dns_resolver registered
[ 3.564270] twl: not initialized
[ 3.567687] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.576171] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.584686] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.593170] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.601684] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.610168] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.618652] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.627136] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.634429] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.640197] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.647552] omap2_set_init_voltage: unable to set vdd_core
[ 3.653381] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.660675] omap2_set_init_voltage: unable to set vdd_iva
[ 3.667602] Power Management for TI OMAP4+ devices.
[ 3.672790] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.680023] ThumbEE CPU extension supported.
[ 3.680023] Registering SWP/SWPB emulation handler
[ 3.684631] SmartReflex Class3 initialized
[ 3.714111] Btrfs loaded
[ 3.719268] dmm 4e000000.dmm: initialized all PAT entries
[ 3.719726] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.744720] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.770660] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.777099] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.785766] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.805755] twl6040 0-004b: clk32k is not handled
[ 3.813476] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.820220] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.827056] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.833801] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.840087] omap_hsmmc 4809c000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.870208] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.877380] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.885742] hub 1-1:1.0: USB hub found
[ 3.889831] hub 1-1:1.0: 5 ports detected
[ 3.900604] omap_hsmmc 480d5000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 4.035125] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.048919] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 4.060760] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-02-19 09:11:01 UTC (1455873061)
[ 4.071014] sr_init: No PMIC hook to init smartreflex
[ 4.076599] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.084991] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.093353] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.105468] mmc1: new SDIO card at address 0001
[ 4.114013] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.114013] vwl1271: disabling
[ 4.120666] VDAC: disabling
[ 4.121124] VANA: disabling
[ 4.121551] VUSB: disabling
[ 4.121765] ALSA device list:
[ 4.121765] #0: PandaBoardES
[ 4.141418] Waiting for root device /dev/mmcblk0p2...
[ 4.146911] mmc0: new high speed SDHC card at address e624
[ 4.153320] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.187683] mmcblk0: p1 p2 p3 p4
[ 4.229980] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.264984] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.274322] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.316009] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.324005] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.340850] devtmpfs: mounted
[ 4.344329] Freeing unused kernel memory: 304K (c08dc000 - c0928000)
[ 4.361633] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.368896] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.379486] smsc95xx v1.0.4
[ 4.467376] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, 6e:35:2b:90:2e:10
[ 4.703063] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.758605] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.895751] random: dd urandom read with 31 bits of entropy available
[ 8.906768] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 18.698944] Bluetooth: Core ver 2.21
[ 18.703186] NET: Registered protocol family 31
[ 18.708099] Bluetooth: HCI device and connection manager initialized
[ 18.715240] Bluetooth: HCI socket layer initialized
[ 18.720825] Bluetooth: L2CAP socket layer initialized
[ 18.726287] Bluetooth: SCO socket layer initialized
[ 26.347351] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 26.358642] NFSD: starting 90-second grace period (net c09607c0)
[ 48.742340] random: nonblocking pool is initialized
[ 146.720031] NFSD: Unable to end grace period: -110
[ 179.328674] wlcore: loaded
[ 189.669311] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 193.170959] wlan0: authenticate with 90:f6:52:81:ee:70
[ 193.185272] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 193.192993] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 193.200256] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 193.207519] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 196.753845] wlan0: authenticate with 90:f6:52:81:ee:70
[ 196.767944] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 196.775329] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 196.782440] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 196.789764] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 200.636230] wlan0: authenticate with 90:f6:52:81:ee:70
[ 200.680450] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 200.688446] wlan0: authenticated
[ 200.711700] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 200.722381] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 200.737976] wlan0: associated
[ 200.798187] wlcore: Association completed.
[ 785.829315] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[197112.778137] INFO: rcu_preempt self-detected stall on CPU
[197112.781707] 0-...: (1 GPs behind) idle=ff5/1/0 softirq=1813827/1813828 fqs=1
[197112.784942] INFO: rcu_preempt detected stalls on CPUs/tasks:
[197112.784942] 0-...: (1 GPs behind) idle=ff5/1/0 softirq=1813827/1813828 fqs=1
[197112.784973] (detected by 1, t=11981 jiffies, g=613144, c=613143, q=188)
[197112.784973] Task dump for CPU 0:
[197112.784973] swapper/0 R running 0 0 0 0x00000000
[197112.785003] Backtrace:
[197112.785003] Backtrace aborted due to bad frame pointer <c0929f54>
[197112.824920] (t=11981 jiffies g=613144 c=613143 q=188)
[197112.834930] Task dump for CPU 0:
[197112.834930] swapper/0 R running 0 0 0 0x00000002
[197112.834930] Backtrace:
[197112.834930] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[197112.858886] r7:c092a518 r6:800c0193 r5:00000000 r4:c092d180
[197112.858886] [<c0014164>] (show_stack) from [<c005ac68>] (sched_show_task+0xbc/0x110)
[197112.870941] [<c005abac>] (sched_show_task) from [<c005d0f8>] (dump_cpu_task+0x40/0x48)
[197112.878906] r5:c093a080 r4:00000000
[197112.884918] [<c005d0b8>] (dump_cpu_task) from [<c00828c4>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[197112.894500] r5:c093a080 r4:00000001
[197112.895751] [<c0082828>] (rcu_dump_cpu_stacks) from [<c0086d28>] (rcu_check_callbacks+0x500/0x8e4)
[197112.904937] r9:c093a080 r8:c092a628 r7:2ee89000 r6:c0926340 r5:c093a080 r4:ef7af340
[197112.904937] [<c0086828>] (rcu_check_callbacks) from [<c0089f58>] (update_process_times+0x40/0x6c)
[197112.904937] r10:c009b9bc r9:00000001 r8:ef7abc4c r7:0000b346 r6:194762c0 r5:00000000
[197112.934173] r4:c092d180
[197112.935089] [<c0089f18>] (update_process_times) from [<c009b9b8>] (tick_sched_handle+0x50/0x54)
[197112.944946] r5:c0929f10 r4:ef7abe40
[197112.944946] [<c009b968>] (tick_sched_handle) from [<c009ba0c>] (tick_sched_timer+0x50/0x94)
[197112.959075] [<c009b9bc>] (tick_sched_timer) from [<c008a99c>] (__hrtimer_run_queues+0x110/0x1a4)
[197112.968475] r7:00000000 r6:ef7abc40 r5:ef7abe40 r4:ef7abc00
[197112.974578] [<c008a88c>] (__hrtimer_run_queues) from [<c008b030>] (hrtimer_interrupt+0xac/0x1fc)
[197112.978240] r10:ef7abc78 r9:ef7abc98 r8:ef7abc14 r7:ef7abcb8 r6:ffffffff r5:00000003
[197112.984924] r4:ef7abc00
[197112.995147] [<c008af84>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[197112.995147] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[197113.012023] r4:00000001
[197113.012023] [<c00171d4>] (twd_handler) from [<c007d02c>] (handle_percpu_devid_irq+0x74/0x8c)
[197113.023834] r5:ef005cc0 r4:ef7b1780
[197113.027099] [<c007cfb8>] (handle_percpu_devid_irq) from [<c0078ab4>] (generic_handle_irq+0x2c/0x3c)
[197113.037384] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092341c
[197113.037384] [<c0078a88>] (generic_handle_irq) from [<c0078dac>] (__handle_domain_irq+0x64/0xbc)
[197113.037384] [<c0078d48>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[197113.059997] r9:fa241100 r8:fa240100 r7:c0929f10 r6:fa24010c r5:c092a7a8 r4:c0947f48
[197113.059997] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[197113.075073] Exception stack(0xc0929f10 to 0xc0929f58)
[197113.075073] 9f00: 00000000 ef7ab390 fe600000 00000000
[197113.094451] 9f20: c0928000 c092a49c c092236c c0929f80 c0967065 c0967065 c092a4ec c0929f6c
[197113.095703] 9f40: c0929f4c c0929f60 c0028a30 c0010ca0 600c0113 ffffffff
[197113.095703] r9:c0967065 r8:c0967065 r7:c0929f44 r6:ffffffff r5:600c0113 r4:c0010ca0
[197113.095703] [<c0010c78>] (arch_cpu_idle) from [<c006f720>] (default_idle_call+0x28/0x34)
[197113.095703] [<c006f6f8>] (default_idle_call) from [<c006f844>] (cpu_startup_entry+0x118/0x188)
[197113.095703] [<c006f72c>] (cpu_startup_entry) from [<c06b9e68>] (rest_init+0x90/0x94)
[197113.095703] r7:ffffffff r4:00000002
[197113.095703] [<c06b9dd8>] (rest_init) from [<c08dcd0c>] (start_kernel+0x390/0x39c)
[197113.151000] r5:c096a000 r4:00000000
[197113.158843] [<c08dc97c>] (start_kernel) from [<8000807c>] (0x8000807c)
$ zcat /proc/config.gz | grep TIME
CONFIG_BUILDTIME_EXTABLE_SORT=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_HIGH_RES_TIMERS=y
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_TIMERFD=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_OMAP_32K_TIMER=y
CONFIG_OMAP_DM_TIMER=y
CONFIG_HAVE_ARM_ARCH_TIMER=y
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
CONFIG_SND_TIMER=y
CONFIG_SND_PCM_TIMER=y
CONFIG_SND_HRTIMER=y
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_LEDS_TRIGGER_TIMER=y
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_ARM_ARCH_TIMER=y
CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
CONFIG_ARM_GLOBAL_TIMER=y
CONFIG_ARM_TIMER_SP804=y
CONFIG_CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK=y
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_PWM_OMAP_DMTIMER is not set
CONFIG_PRINTK_TIME=y
CONFIG_PANIC_TIMEOUT=0
CONFIG_DEBUG_TIMEKEEPING=y
# CONFIG_TIMER_STATS is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
$
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-23 20:34 ` Mathieu Desnoyers
@ 2016-02-23 20:55 ` Paul E. McKenney
2016-02-23 21:28 ` Ross Green
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-23 20:55 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Ross Green, John Stultz, Thomas Gleixner, Peter Zijlstra, lkml,
Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
On Tue, Feb 23, 2016 at 08:34:11PM +0000, Mathieu Desnoyers wrote:
> ----- On Feb 21, 2016, at 1:15 PM, Ross Green rgkernel@gmail.com wrote:
>
> > On Sun, Feb 21, 2016 at 4:04 PM, Ross Green <rgkernel@gmail.com> wrote:
> >> On Sat, Feb 20, 2016 at 5:32 PM, Paul E. McKenney
> >> <paulmck@linux.vnet.ibm.com> wrote:
> >>> On Sat, Feb 20, 2016 at 03:34:30PM +1100, Ross Green wrote:
> >>>> On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney
> >>>> <paulmck@linux.vnet.ibm.com> wrote:
> >>>> > On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote:
> >>>> >> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
> >>>> >> > Well a bonus extra!
> >>>> >> > Kept everything running and there was another stall.
> >>>> >> > So i have included the demsg output for perusal.
> >>>> >> >
> >>>> >> > Just to clear things up there is no hotplug involved in this system.
> >>>> >> > It is a standard Pandaboard ES Ti4460 two processor system.
> >>>> >> > I use this for testing as a generic armv7 processor, plus can keep it
> >>>> >> > just running along for testing for a long time. the system has a total
> >>>> >> > of 23-25 process running on average. Mainly standard daemons. There is
> >>>> >> > certainly no heavy processing going on. I run a series of benchmarks
> >>>> >> > that are cpu intensive for the first 20 miinutes after boot and then
> >>>> >> > just leave it idle away. checking every so often to see how it has
> >>>> >> > gone.
> >>>> >> > As mentioned I have observed these stalls going back to 3.17 kernel.
> >>>> >> > It will often take up to a week to record such a stall. I will
> >>>> >> > typically test every new release kernel, so the -rc? series will get
> >>>> >> > around a weeks testing.
> >>>> >>
> >>>> >> Sorry. Kind of hopping in a bit late here. Is this always happening
> >>>> >> with just the pandaboard? Or are you seeing this on different
> >>>> >> machines?
> >>>> >>
> >>>> >> Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
> >>>> >> something is going awry there?
> >>>> >
> >>>> > Excellent point -- timekeeping issues have caused this sort of issue
> >>>> > in the past.
> >>>> >
> >>>> > Ross, on your next test, could you please enable CONFIG_DEBUG_TIMEKEEPING
> >>>> > as John suggests?
> >>>> >
> >>>> > Thanx, Paul
> >>>> >
> >>>> As John has suggested have already enabled CONFIG_DEBUG_TIMEKEEPING.
> >>>>
> >>>> So far just on 1 day running.
> >>>>
> >>>> Sigh...!! Nothing to report as yet, only one day on the clock.
> >>>> Its like watching grass grow!
> >>>
> >>> I hear you! Though I was thinking in terms of watching paint dry...
> >>>
> >>> Thanx, Paul
> >>>
> >> Yes,
> >>
> >> but with paint drying there is an end point!
> >> Grass just keeps on growing ...
> >>
> >> More like the children in the back of the car ...
> >> Are we there yet? ...
> >>
> >> Well still nothing .. to report. I have just built a 4.5-rc5, but will
> >> wait till I get some outcome from the previous test. That can't be too
> >> much longer!
> >>
> >> In hope,
> >>
> >> Ross Green
> > Patience little ones ...
> >
> > Well after 2 days plus running pulled another stall.
> > This is with 4.5-rc4 and CONFIG_DEBUG_TIMEKEEPING set.
> >
> > Can't see anything related to the TIMEKEEPING.
> >
> > Anyway here is the dmesg output for people to look at.
> >
> > Paul, I was going to move onto 4.5-rc5 kernel, is there something else
> > that you want me to test with that, Anyone else have any suggestions
> > or ideas?
>
> Starting from kernel 3.17, if we request a e.g. 1000 jiffies schedule_timeout
> on a HZ=1000 kernel, is there an upper bound to the number of jiffies it
> can actually take before the timeout happens, especially on idle systems ?
> I remember a talk from Thomas Gleixner on the new timer wheel which could
> add some imprecision to those timeouts. Not sure in which kernel version it
> got in though.
>
> My thinking is that it might be a good idea to try using hrtimers rather than
> a jiffies-based timeout to awaken the RCU thread if it's really important to
> run in a bounded amount of jiffies. Or else the jiffies-based sanity check
> that triggers the warning is perhaps too strict.
Some imprecision I could well understand. 21 seconds of imprecision
on a three-millisecond timeout I am having somewhat more difficulty
understanding. ;-)
But I would rather avoid hrtimers for the RCU grace-period kthread
because a few milliseconds of adjustment for energy-efficiency
reasons is a very good thing.
Still working on getting decent traces...
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-23 20:55 ` Paul E. McKenney
@ 2016-02-23 21:28 ` Ross Green
2016-02-25 5:13 ` Ross Green
0 siblings, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-02-23 21:28 UTC (permalink / raw)
To: Paul McKenney
Cc: Mathieu Desnoyers, John Stultz, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 5470 bytes --]
On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> On Tue, Feb 23, 2016 at 08:34:11PM +0000, Mathieu Desnoyers wrote:
>> ----- On Feb 21, 2016, at 1:15 PM, Ross Green rgkernel@gmail.com wrote:
>>
>> > On Sun, Feb 21, 2016 at 4:04 PM, Ross Green <rgkernel@gmail.com> wrote:
>> >> On Sat, Feb 20, 2016 at 5:32 PM, Paul E. McKenney
>> >> <paulmck@linux.vnet.ibm.com> wrote:
>> >>> On Sat, Feb 20, 2016 at 03:34:30PM +1100, Ross Green wrote:
>> >>>> On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney
>> >>>> <paulmck@linux.vnet.ibm.com> wrote:
>> >>>> > On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote:
>> >>>> >> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
>> >>>> >> > Well a bonus extra!
>> >>>> >> > Kept everything running and there was another stall.
>> >>>> >> > So i have included the demsg output for perusal.
>> >>>> >> >
>> >>>> >> > Just to clear things up there is no hotplug involved in this system.
>> >>>> >> > It is a standard Pandaboard ES Ti4460 two processor system.
>> >>>> >> > I use this for testing as a generic armv7 processor, plus can keep it
>> >>>> >> > just running along for testing for a long time. the system has a total
>> >>>> >> > of 23-25 process running on average. Mainly standard daemons. There is
>> >>>> >> > certainly no heavy processing going on. I run a series of benchmarks
>> >>>> >> > that are cpu intensive for the first 20 miinutes after boot and then
>> >>>> >> > just leave it idle away. checking every so often to see how it has
>> >>>> >> > gone.
>> >>>> >> > As mentioned I have observed these stalls going back to 3.17 kernel.
>> >>>> >> > It will often take up to a week to record such a stall. I will
>> >>>> >> > typically test every new release kernel, so the -rc? series will get
>> >>>> >> > around a weeks testing.
>> >>>> >>
>> >>>> >> Sorry. Kind of hopping in a bit late here. Is this always happening
>> >>>> >> with just the pandaboard? Or are you seeing this on different
>> >>>> >> machines?
>> >>>> >>
>> >>>> >> Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
>> >>>> >> something is going awry there?
>> >>>> >
>> >>>> > Excellent point -- timekeeping issues have caused this sort of issue
>> >>>> > in the past.
>> >>>> >
>> >>>> > Ross, on your next test, could you please enable CONFIG_DEBUG_TIMEKEEPING
>> >>>> > as John suggests?
>> >>>> >
>> >>>> > Thanx, Paul
>> >>>> >
>> >>>> As John has suggested have already enabled CONFIG_DEBUG_TIMEKEEPING.
>> >>>>
>> >>>> So far just on 1 day running.
>> >>>>
>> >>>> Sigh...!! Nothing to report as yet, only one day on the clock.
>> >>>> Its like watching grass grow!
>> >>>
>> >>> I hear you! Though I was thinking in terms of watching paint dry...
>> >>>
>> >>> Thanx, Paul
>> >>>
>> >> Yes,
>> >>
>> >> but with paint drying there is an end point!
>> >> Grass just keeps on growing ...
>> >>
>> >> More like the children in the back of the car ...
>> >> Are we there yet? ...
>> >>
>> >> Well still nothing .. to report. I have just built a 4.5-rc5, but will
>> >> wait till I get some outcome from the previous test. That can't be too
>> >> much longer!
>> >>
>> >> In hope,
>> >>
>> >> Ross Green
>> > Patience little ones ...
>> >
>> > Well after 2 days plus running pulled another stall.
>> > This is with 4.5-rc4 and CONFIG_DEBUG_TIMEKEEPING set.
>> >
>> > Can't see anything related to the TIMEKEEPING.
>> >
>> > Anyway here is the dmesg output for people to look at.
>> >
>> > Paul, I was going to move onto 4.5-rc5 kernel, is there something else
>> > that you want me to test with that, Anyone else have any suggestions
>> > or ideas?
>>
>> Starting from kernel 3.17, if we request a e.g. 1000 jiffies schedule_timeout
>> on a HZ=1000 kernel, is there an upper bound to the number of jiffies it
>> can actually take before the timeout happens, especially on idle systems ?
>> I remember a talk from Thomas Gleixner on the new timer wheel which could
>> add some imprecision to those timeouts. Not sure in which kernel version it
>> got in though.
>>
>> My thinking is that it might be a good idea to try using hrtimers rather than
>> a jiffies-based timeout to awaken the RCU thread if it's really important to
>> run in a bounded amount of jiffies. Or else the jiffies-based sanity check
>> that triggers the warning is perhaps too strict.
>
> Some imprecision I could well understand. 21 seconds of imprecision
> on a three-millisecond timeout I am having somewhat more difficulty
> understanding. ;-)
>
> But I would rather avoid hrtimers for the RCU grace-period kthread
> because a few milliseconds of adjustment for energy-efficiency
> reasons is a very good thing.
>
> Still working on getting decent traces...
>
> Thanx, Paul
>
G'day all,
Here is another dmesg output for 4.5-rc5 showing another rcu_preempt stall.
This one appeared after only a day of running. CONFIG_DEBUG_TIMING is
turned on, but can't see any output that shows from this.
Again testing as before,
Boot, run a series of small benchmarks, then just let the system be
and idle away.
I notice in the stack trace there is mention of hrtimer_run_queues and
hrtimer_interrupt.
Anyway, leave this for a few more eyes to look at.
Open to any other suggestions of things to test.
Regards,
Ross Green
[-- Attachment #2: dmesg-4.5-rc5 --]
[-- Type: application/octet-stream, Size: 30999 bytes --]
$ uptime
07:41:55 up 1 day, 6:27, load average: 0.01, 0.05, 0.10
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.5.0-rc5-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #2 SMP PREEMPT Mon Feb 22 23:28:57 AEDT 2016
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c0966300, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7ab000 s17984 r8192 d22976 u49152
[ 0.000000] pcpu-alloc: s17984 r8192 d22976 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027232K/1046528K available (6883K kernel code, 252K rwdata, 2156K rodata, 300K init, 298K bss, 19296K reserved, 0K cma-reserved, 260096K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08dc0d4 (9041 kB)
.init : 0xc08dd000 - 0xc0928000 ( 300 kB)
.data : 0xc0928000 - 0xc0967300 ( 253 kB)
.bss : 0xc096a000 - 0xc09b48b8 ( 299 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000854] Console: colour dummy device 80x30
[ 0.000885] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089202] pid_max: default: 32768 minimum: 301
[ 0.089263] Security Framework initialized
[ 0.089324] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089324] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089965] CPU: Testing write buffer coherency: ok
[ 0.090179] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090240] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.209197] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.209259] Brought up 2 CPUs
[ 0.209289] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.209289] CPU: All CPU(s) started in SVC mode.
[ 0.210083] devtmpfs: initialized
[ 0.226806] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.227294] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.227447] xor: measuring software checksum speed
[ 0.319183] arm4regs : 1000.000 MB/sec
[ 0.419158] 8regs : 804.000 MB/sec
[ 0.519165] 32regs : 760.800 MB/sec
[ 0.519195] xor: using function: arm4regs (1000.000 MB/sec)
[ 0.519439] pinctrl core: initialized pinctrl subsystem
[ 0.521331] NET: Registered protocol family 16
[ 0.522186] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.523864] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.525390] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.630828] OMAP GPIO hardware version 0.1
[ 0.636108] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.636108] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.636657] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637023] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637420] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.649230] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.649536] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.655517] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.655517] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.656158] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.656372] OMAP DMA hardware revision 0.0
[ 0.909423] raid6: int32x1 gen() 103 MB/s
[ 1.079467] raid6: int32x1 xor() 82 MB/s
[ 1.249237] raid6: int32x2 gen() 134 MB/s
[ 1.419403] raid6: int32x2 xor() 98 MB/s
[ 1.589385] raid6: int32x4 gen() 145 MB/s
[ 1.759429] raid6: int32x4 xor() 97 MB/s
[ 1.929260] raid6: int32x8 gen() 160 MB/s
[ 2.099487] raid6: int32x8 xor() 94 MB/s
[ 2.099487] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.099487] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.099517] raid6: using intx1 recovery algorithm
[ 2.105529] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.179321] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.183563] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.183685] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.185760] SCSI subsystem initialized
[ 2.186065] usbcore: registered new interface driver usbfs
[ 2.186187] usbcore: registered new interface driver hub
[ 2.186340] usbcore: registered new device driver usb
[ 2.187286] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.187347] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.187377] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.187408] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.187683] Linux video capture interface: v2.00
[ 2.188415] Advanced Linux Sound Architecture Driver Initialized.
[ 2.189880] clocksource: Switched to clocksource 32k_counter
[ 2.204132] NET: Registered protocol family 2
[ 2.204803] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.204925] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.205047] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.205139] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.205169] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.205383] NET: Registered protocol family 1
[ 2.205749] RPC: Registered named UNIX socket transport module.
[ 2.205780] RPC: Registered udp transport module.
[ 2.205780] RPC: Registered tcp transport module.
[ 2.205780] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.208068] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.211242] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.233947] NFS: Registering the id_resolver key type
[ 2.233978] Key type id_resolver registered
[ 2.234008] Key type id_legacy registered
[ 2.234008] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.234039] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.235382] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.235687] fuse init (API version 7.24)
[ 2.238464] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.238555] bounce: pool size: 64 pages
[ 2.238555] io scheduler noop registered
[ 2.238586] io scheduler deadline registered
[ 2.238616] io scheduler cfq registered (default)
[ 2.239501] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.239715] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.242767] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.244354] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.244476] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.244995] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.245452] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.142425] console [ttyO2] enabled
[ 3.146545] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.157287] [drm] Initialized drm 1.1.0 20060810
[ 3.163757] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.171142] OMAP DSS rev 4.0
[ 3.174316] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.182647] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.191192] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.243072] loop: module loaded
[ 3.249145] usbcore: registered new interface driver smsc95xx
[ 3.255279] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.262115] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.279907] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.285614] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.293670] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.319885] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.326263] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.333374] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.340942] usb usb1: Product: EHCI Host Controller
[ 3.346069] usb usb1: Manufacturer: Linux 4.5.0-rc5-panda ehci_hcd
[ 3.352539] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.358123] hub 1-0:1.0: USB hub found
[ 3.362091] hub 1-0:1.0: 3 ports detected
[ 3.367004] usbcore: registered new interface driver cdc_wdm
[ 3.373077] usbcore: registered new interface driver usb-storage
[ 3.379791] i2c /dev entries driver
[ 3.383605] usbcore: registered new interface driver uvcvideo
[ 3.389617] USB Video Class driver (1.1.1)
[ 3.395111] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.402679] device-mapper: uevent: version 1.0.3
[ 3.407836] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.480865] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.486755] usbcore: registered new interface driver usbhid
[ 3.492584] usbhid: USB HID core driver
[ 3.497100] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.506408] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.517333] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.525299] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.532775] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.538482] Initializing XFRM netlink socket
[ 3.543029] NET: Registered protocol family 17
[ 3.547973] Key type dns_resolver registered
[ 3.552673] twl: not initialized
[ 3.556091] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.564697] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.573211] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.581695] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.590179] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.598663] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.607147] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.615661] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.623199] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.628936] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.636322] omap2_set_init_voltage: unable to set vdd_core
[ 3.642150] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.649414] omap2_set_init_voltage: unable to set vdd_iva
[ 3.656066] Power Management for TI OMAP4+ devices.
[ 3.661254] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.668487] ThumbEE CPU extension supported.
[ 3.673034] Registering SWP/SWPB emulation handler
[ 3.673065] SmartReflex Class3 initialized
[ 3.682525] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.707427] Btrfs loaded
[ 3.712707] dmm 4e000000.dmm: initialized all PAT entries
[ 3.730163] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.760406] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.766815] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.775482] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.797241] twl6040 0-004b: clk32k is not handled
[ 3.804412] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.811981] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.819000] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.825622] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.832000] omap_hsmmc 4809c000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.850494] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.857666] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.865997] hub 1-1:1.0: USB hub found
[ 3.870147] hub 1-1:1.0: 5 ports detected
[ 3.885772] omap_hsmmc 480d5000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 4.026062] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.041259] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 4.053192] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-02-22 14:14:55 UTC (1456150495)
[ 4.063568] sr_init: No PMIC hook to init smartreflex
[ 4.069244] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.077728] mmc1: new SDIO card at address 0001
[ 4.077728] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.077941] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.088684] VDAC: disabling
[ 4.089141] VANA: disabling
[ 4.089599] VUSB: disabling
[ 4.089965] ALSA device list:
[ 4.089965] #0: PandaBoardES
[ 4.114654] Waiting for root device /dev/mmcblk0p2...
[ 4.129089] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.140960] mmc0: new high speed SDHC card at address e624
[ 4.161804] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.179931] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.196685] mmcblk0: p1 p2 p3 p4
[ 4.241821] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.251098] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.281799] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.283599] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.304168] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.311523] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.322143] smsc95xx v1.0.4
[ 4.325714] devtmpfs: mounted
[ 4.328979] Freeing unused kernel memory: 300K (c08dd000 - c0928000)
[ 4.410034] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, c2:03:46:11:42:fc
[ 4.672088] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.720947] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.859893] random: dd urandom read with 31 bits of entropy available
[ 9.680908] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 19.578399] Bluetooth: Core ver 2.21
[ 19.582489] NET: Registered protocol family 31
[ 19.587188] Bluetooth: HCI device and connection manager initialized
[ 19.594635] Bluetooth: HCI socket layer initialized
[ 19.599731] Bluetooth: L2CAP socket layer initialized
[ 19.605316] Bluetooth: SCO socket layer initialized
[ 27.174468] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 27.185882] NFSD: starting 90-second grace period (net c0960800)
[ 30.303527] random: nonblocking pool is initialized
[ 56.984252] wlcore: loaded
[ 65.072265] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 65.807983] wlcore: ERROR ELP wakeup timeout!
[ 65.812622] ------------[ cut here ]------------
[ 65.817535] WARNING: CPU: 1 PID: 1116 at drivers/net/wireless/ti/wlcore/main.c:787 wl1271_op_cancel_hw_scan+0x838/0x83c [wlcore]()
[ 65.830047] Modules linked in: btwilink st_drv wl12xx wlcore_sdio wlcore mac80211 cfg80211 bluetooth
[ 65.830047] CPU: 1 PID: 1116 Comm: wpa_supplicant Not tainted 4.5.0-rc5-panda #2
[ 65.839874] Hardware name: Generic OMAP4 (Flattened Device Tree)
[ 65.853942] Backtrace:
[ 65.853942] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[ 65.864562] r7:bf0e6bf4 r6:60030113 r5:c0947d74 r4:00000000
[ 65.869873] [<c0014164>] (show_stack) from [<c03a2364>] (dump_stack+0x94/0xa8)
[ 65.878265] [<c03a22d0>] (dump_stack) from [<c0034c98>] (warn_slowpath_common+0x88/0xb8)
[ 65.886810] r7:bf0e6bf4 r6:00000313 r5:00000009 r4:00000000
[ 65.890624] [<c0034c10>] (warn_slowpath_common) from [<c0034d6c>] (warn_slowpath_null+0x24/0x2c)
[ 65.899871] r8:bf103540 r7:ee9a8d94 r6:00000000 r5:c092a100 r4:ee9a8d40
[ 65.899871] [<c0034d48>] (warn_slowpath_null) from [<bf0e6bf4>] (wl1271_op_cancel_hw_scan+0x838/0x83c [wlcore])
[ 65.919952] [<bf0e6b94>] (wl1271_op_cancel_hw_scan [wlcore]) from [<bf0e8e98>] (wl12xx_queue_recovery_work+0x1c/0x20 [wlcore])
[ 65.929870] r5:c092a100 r4:ee9a8d40
[ 65.929870] [<bf0e8e7c>] (wl12xx_queue_recovery_work [wlcore]) from [<bf0f26d4>] (wl1271_ps_elp_wakeup+0x200/0x208 [wlcore])
[ 65.947723] [<bf0f24d4>] (wl1271_ps_elp_wakeup [wlcore]) from [<bf0e4114>] (wl1271_op_hw_scan+0x68/0xe0 [wlcore])
[ 65.951965] r10:ef0034f8 r9:ee9a83e0 r8:00000000 r7:ef355e00 r6:ee9a8d7c r5:00000000
[ 65.959869] r4:ee9a8d40
[ 65.959869] [<bf0e40ac>] (wl1271_op_hw_scan [wlcore]) from [<bf0938a0>] (ieee80211_sched_scan_stopped+0x294/0x4dc [mac80211])
[ 65.959869] r10:00000000 r9:ee9ffcf0 r8:00000000 r7:ee9a8ab0 r6:ef003400 r5:eebeb4c0
[ 65.989868] r4:ee9a83e0
[ 65.989868] [<bf0936a0>] (ieee80211_sched_scan_stopped [mac80211]) from [<bf09456c>] (ieee80211_request_scan+0x30/0x48 [mac80211])
[ 65.999877] r9:ee9ffcf0 r8:00000112 r7:ee9a8000 r6:ef003400 r5:0000064c r4:eebeb4c0
[ 66.009857] [<bf09453c>] (ieee80211_request_scan [mac80211]) from [<bf0a3184>] (ieee80211_scan+0x8c/0xc8 [mac80211])
[ 66.024505] r7:ee9a8000 r6:ef003400 r5:00000000 r4:eebeb4c0
[ 66.030609] [<bf0a30f8>] (ieee80211_scan [mac80211]) from [<bf072770>] (nl80211_trigger_scan+0x600/0x65c [cfg80211])
[ 66.039855] r5:00000000 r4:ee863924
[ 66.039855] [<bf072170>] (nl80211_trigger_scan [cfg80211]) from [<c06141e4>] (genl_rcv_msg+0x264/0x400)
[ 66.055511] r10:edc58400 r9:c0960800 r8:00000000 r7:ef377a80 r6:ee863914 r5:bf07a158
[ 66.055511] r4:bf07ba48
[ 66.064208] [<c0613f80>] (genl_rcv_msg) from [<c0613430>] (netlink_rcv_skb+0xa8/0xc4)
[ 66.068542] r10:ef377a80 r9:00000000 r8:00000000 r7:ef377a80 r6:ef377a80 r5:c0613f80
[ 66.083099] r4:ee863900
[ 66.083099] [<c0613388>] (netlink_rcv_skb) from [<c0613f70>] (genl_rcv+0x2c/0x3c)
[ 66.089874] r7:ef377a80 r6:00000024 r5:ef377a80 r4:c09620a4
[ 66.093719] [<c0613f44>] (genl_rcv) from [<c0612d48>] (netlink_unicast+0x170/0x258)
[ 66.093719] r5:ee86b800 r4:ef153800
[ 66.111633] [<c0612bd8>] (netlink_unicast) from [<c06131f8>] (netlink_sendmsg+0x2f8/0x360)
[ 66.120361] r8:00000000 r7:00000024 r6:ee86b800 r5:00000000 r4:ee9fff4c
[ 66.120361] [<c0612f00>] (netlink_sendmsg) from [<c05d43c0>] (sock_sendmsg+0x1c/0x2c)
[ 66.135772] r10:00000000 r9:ee9ffe28 r8:00000000 r7:eed4dc80 r6:00000000 r5:00000000
[ 66.135772] r4:ee9fff4c
[ 66.135772] [<c05d43a4>] (sock_sendmsg) from [<c05d4a60>] (___sys_sendmsg+0x1f4/0x1fc)
[ 66.152099] [<c05d486c>] (___sys_sendmsg) from [<c05d5824>] (__sys_sendmsg+0x44/0x70)
[ 66.152099] r10:00000000 r9:ee9fe000 r8:c000fce8 r7:00000128 r6:eed4dc80 r5:00000000
[ 66.171752] r4:bed4aa34
[ 66.174438] [<c05d57e0>] (__sys_sendmsg) from [<c05d5860>] (SyS_sendmsg+0x10/0x14)
[ 66.180175] r6:0008d9d8 r5:0008e188 r4:0008da50
[ 66.180175] [<c05d5850>] (SyS_sendmsg) from [<c000fae0>] (ret_fast_syscall+0x0/0x3c)
[ 66.195648] ---[ end trace 0a879fbe88a91723 ]---
[ 66.200653] wlcore: Hardware recovery in progress. FW ver: Rev 6.3.10.0.133
[ 66.200653] ------------[ cut here ]------------
[ 66.217193] WARNING: CPU: 1 PID: 17 at drivers/net/wireless/ti/wlcore/io.h:64 wlcore_set_partition+0xa8/0x450 [wlcore]()
[ 66.228729] Modules linked in: btwilink st_drv wl12xx wlcore_sdio wlcore mac80211 cfg80211 bluetooth
[ 66.231811] CPU: 1 PID: 17 Comm: kworker/u4:1 Tainted: G W 4.5.0-rc5-panda #2
[ 66.246429] Hardware name: Generic OMAP4 (Flattened Device Tree)
[ 66.246429] Workqueue: phy0 wl1271_recovery_work [wlcore]
[ 66.253631] Backtrace:
[ 66.259918] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[ 66.269958] r7:bf0ee8b0 r6:600c0113 r5:c0947d74 r4:00000000
[ 66.269958] [<c0014164>] (show_stack) from [<c03a2364>] (dump_stack+0x94/0xa8)
[ 66.269958] [<c03a22d0>] (dump_stack) from [<c0034c98>] (warn_slowpath_common+0x88/0xb8)
[ 66.269958] r7:bf0ee8b0 r6:00000040 r5:00000009 r4:00000000
[ 66.296539] [<c0034c10>] (warn_slowpath_common) from [<c0034d6c>] (warn_slowpath_null+0x24/0x2c)
[ 66.296539] r8:ee9a8d7c r7:ee878200 r6:fffffffb r5:bf1212cc r4:ee9a8d40
[ 66.296539] [<c0034d48>] (warn_slowpath_null) from [<bf0ee8b0>] (wlcore_set_partition+0xa8/0x450 [wlcore])
[ 66.324890] [<bf0ee808>] (wlcore_set_partition [wlcore]) from [<bf0e60fc>] (wl1271_recovery_work+0x74/0x334 [wlcore])
[ 66.324890] r6:ee9a8d40 r5:ef043f80 r4:ee9a8fec
[ 66.324890] [<bf0e6088>] (wl1271_recovery_work [wlcore]) from [<c004a6f4>] (process_one_work+0x128/0x400)
[ 66.346649] r8:00000000 r7:ee878200 r6:ef00b000 r5:ef043f80 r4:ee9a8fec
[ 66.346649] [<c004a5cc>] (process_one_work) from [<c004aa20>] (worker_thread+0x54/0x58c)
[ 66.366851] r10:ef043f80 r9:ef14a020 r8:ef00b018 r7:c092a100 r6:00000088 r5:ef043f98
[ 66.366851] r4:ef00b000
[ 66.366851] [<c004a9cc>] (worker_thread) from [<c005053c>] (kthread+0xe4/0xfc)
[ 66.385498] r10:00000000 r9:00000000 r8:00000000 r7:c004a9cc r6:ef043f80 r5:ef1404c0
[ 66.385498] r4:00000000
[ 66.385498] [<c0050458>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[ 66.404144] r7:00000000 r6:00000000 r5:c0050458 r4:ef1404c0
[ 66.410247] ---[ end trace 0a879fbe88a91724 ]---
[ 66.411651] wlcore: down
[ 66.418945] ieee80211 phy0: Hardware restart was requested
[ 66.997100] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 70.594848] wlan0: authenticate with 90:f6:52:81:ee:70
[ 70.609497] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 70.616821] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 70.623901] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 70.631286] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 74.182769] wlan0: authenticate with 90:f6:52:81:ee:70
[ 74.196655] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 74.203765] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 74.210845] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 74.217895] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 78.127929] wlan0: authenticate with 90:f6:52:81:ee:70
[ 78.180389] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 78.188415] wlan0: authenticated
[ 78.204956] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 78.215667] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 78.230895] wlan0: associated
[ 78.291473] wlcore: Association completed.
[ 147.359924] NFSD: Unable to end grace period: -110
[ 251.135437] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[91494.584503] INFO: rcu_preempt detected stalls on CPUs/tasks:
[91494.587402] (detected by 1, t=7368 jiffies, g=283842, c=283841, q=103)
[91494.597412] All QSes seen, last rcu_preempt kthread activity 7367 (9119441-9112074), jiffies_till_next_fqs=1, root ->qsmask 0x0
[91494.609649] swapper/1 R running 0 0 1 0x00000000
[91494.616394] Backtrace:
[91494.618408] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[91494.619018] r7:2ee94000 r6:c0927340 r5:00000001 r4:ef077480
[91494.619018] [<c0014164>] (show_stack) from [<c005ac70>] (sched_show_task+0xbc/0x110)
[91494.638977] [<c005abb4>] (sched_show_task) from [<c0087100>] (rcu_check_callbacks+0x8d0/0x8e4)
[91494.641265] r5:c093a080 r4:ef7bb340
[91494.653533] [<c0086830>] (rcu_check_callbacks) from [<c0089f60>] (update_process_times+0x40/0x6c)
[91494.659667] r10:c009b9c4 r9:00000001 r8:ef7b7c4c r7:00005336 r6:b43a3541 r5:00000000
[91494.671874] r4:ef077480
[91494.671874] [<c0089f20>] (update_process_times) from [<c009b9c0>] (tick_sched_handle+0x50/0x54)
[91494.678985] r5:ef09ff58 r4:ef7b7e40
[91494.687561] [<c009b970>] (tick_sched_handle) from [<c009ba14>] (tick_sched_timer+0x50/0x94)
[91494.696411] [<c009b9c4>] (tick_sched_timer) from [<c008a9a4>] (__hrtimer_run_queues+0x110/0x1a4)
[91494.700347] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[91494.708374] [<c008a894>] (__hrtimer_run_queues) from [<c008b038>] (hrtimer_interrupt+0xac/0x1fc)
[91494.717407] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[91494.727416] r4:ef7b7c00
[91494.732025] [<c008af8c>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[91494.732025] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[91494.748199] r4:00000001
[91494.751403] [<c00171d4>] (twd_handler) from [<c007d034>] (handle_percpu_devid_irq+0x74/0x8c)
[91494.757415] r5:ef005cc0 r4:ef7bd780
[91494.764129] [<c007cfc0>] (handle_percpu_devid_irq) from [<c0078abc>] (generic_handle_irq+0x2c/0x3c)
[91494.767395] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092441c
[91494.781097] [<c0078a90>] (generic_handle_irq) from [<c0078db4>] (__handle_domain_irq+0x64/0xbc)
[91494.791137] [<c0078d50>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[91494.791137] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a8 r4:c0947f88
[91494.808197] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[91494.814727] Exception stack(0xef09ff58 to 0xef09ffa0)
[91494.818664] ff40: 00000000 ef7b7390
[91494.818664] ff60: fe600000 00000000 ef09e000 c092a49c c092336c ef09ffc8 c09670a5 c09670a5
[91494.837402] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028a30 c0010ca0 60010113 ffffffff
[91494.837402] r9:c09670a5 r8:c09670a5 r7:ef09ff8c r6:ffffffff r5:60010113 r4:c0010ca0
[91494.837402] [<c0010c78>] (arch_cpu_idle) from [<c006f728>] (default_idle_call+0x28/0x34)
[91494.857452] [<c006f700>] (default_idle_call) from [<c006f84c>] (cpu_startup_entry+0x118/0x188)
[91494.873352] [<c006f734>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[91494.877410] r7:c096a288 r4:c093d140
[91494.882934] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[91494.882934] r5:00000051 r4:af08406a
[91494.898345] rcu_preempt kthread starved for 7367 jiffies! g283842 c283841 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[91494.900360] rcu_preempt W c06bab48 0 7 2 0x00000000
[91494.914428] Backtrace:
[91494.914428] [<c06ba97c>] (__schedule) from [<c06baed8>] (schedule+0x54/0xc4)
[91494.921508] r10:c092a518 r9:00000001 r8:008b0a0b r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[91494.934112] r4:ef096000
[91494.934112] [<c06bae84>] (schedule) from [<c06bdcd8>] (schedule_timeout+0x118/0x1ac)
[91494.945007] r5:ef7b73c0 r4:ef7b73c0
[91494.945007] [<c06bdbc0>] (schedule_timeout) from [<c00860f4>] (rcu_gp_kthread+0x64c/0x99c)
[91494.957397] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[91494.957397] [<c0085aa8>] (rcu_gp_kthread) from [<c005053c>] (kthread+0xe4/0xfc)
[91494.972412] r7:c0085aa8
[91494.972412] [<c0050458>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[91494.982391] r7:00000000 r6:00000000 r5:c0050458 r4:ef0407c0
$ zcat /proc/config.gz | fgrep CONFIG_DEBUG_TIM
CONFIG_DEBUG_TIMEKEEPING=y
$
$
$
$ cat /proc/version
Linux version 4.5.0-rc5-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #2 SMP PREEMPT Mon Feb 22 23:28:57 AEDT 2016
$
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-23 21:28 ` Ross Green
@ 2016-02-25 5:13 ` Ross Green
2016-02-26 0:56 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-02-25 5:13 UTC (permalink / raw)
To: Paul McKenney
Cc: Mathieu Desnoyers, John Stultz, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 6090 bytes --]
On Wed, Feb 24, 2016 at 8:28 AM, Ross Green <rgkernel@gmail.com> wrote:
> On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
>> On Tue, Feb 23, 2016 at 08:34:11PM +0000, Mathieu Desnoyers wrote:
>>> ----- On Feb 21, 2016, at 1:15 PM, Ross Green rgkernel@gmail.com wrote:
>>>
>>> > On Sun, Feb 21, 2016 at 4:04 PM, Ross Green <rgkernel@gmail.com> wrote:
>>> >> On Sat, Feb 20, 2016 at 5:32 PM, Paul E. McKenney
>>> >> <paulmck@linux.vnet.ibm.com> wrote:
>>> >>> On Sat, Feb 20, 2016 at 03:34:30PM +1100, Ross Green wrote:
>>> >>>> On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney
>>> >>>> <paulmck@linux.vnet.ibm.com> wrote:
>>> >>>> > On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote:
>>> >>>> >> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green <rgkernel@gmail.com> wrote:
>>> >>>> >> > Well a bonus extra!
>>> >>>> >> > Kept everything running and there was another stall.
>>> >>>> >> > So i have included the demsg output for perusal.
>>> >>>> >> >
>>> >>>> >> > Just to clear things up there is no hotplug involved in this system.
>>> >>>> >> > It is a standard Pandaboard ES Ti4460 two processor system.
>>> >>>> >> > I use this for testing as a generic armv7 processor, plus can keep it
>>> >>>> >> > just running along for testing for a long time. the system has a total
>>> >>>> >> > of 23-25 process running on average. Mainly standard daemons. There is
>>> >>>> >> > certainly no heavy processing going on. I run a series of benchmarks
>>> >>>> >> > that are cpu intensive for the first 20 miinutes after boot and then
>>> >>>> >> > just leave it idle away. checking every so often to see how it has
>>> >>>> >> > gone.
>>> >>>> >> > As mentioned I have observed these stalls going back to 3.17 kernel.
>>> >>>> >> > It will often take up to a week to record such a stall. I will
>>> >>>> >> > typically test every new release kernel, so the -rc? series will get
>>> >>>> >> > around a weeks testing.
>>> >>>> >>
>>> >>>> >> Sorry. Kind of hopping in a bit late here. Is this always happening
>>> >>>> >> with just the pandaboard? Or are you seeing this on different
>>> >>>> >> machines?
>>> >>>> >>
>>> >>>> >> Have you tried enabling CONFIG_DEBUG_TIMEKEEPING just in case
>>> >>>> >> something is going awry there?
>>> >>>> >
>>> >>>> > Excellent point -- timekeeping issues have caused this sort of issue
>>> >>>> > in the past.
>>> >>>> >
>>> >>>> > Ross, on your next test, could you please enable CONFIG_DEBUG_TIMEKEEPING
>>> >>>> > as John suggests?
>>> >>>> >
>>> >>>> > Thanx, Paul
>>> >>>> >
>>> >>>> As John has suggested have already enabled CONFIG_DEBUG_TIMEKEEPING.
>>> >>>>
>>> >>>> So far just on 1 day running.
>>> >>>>
>>> >>>> Sigh...!! Nothing to report as yet, only one day on the clock.
>>> >>>> Its like watching grass grow!
>>> >>>
>>> >>> I hear you! Though I was thinking in terms of watching paint dry...
>>> >>>
>>> >>> Thanx, Paul
>>> >>>
>>> >> Yes,
>>> >>
>>> >> but with paint drying there is an end point!
>>> >> Grass just keeps on growing ...
>>> >>
>>> >> More like the children in the back of the car ...
>>> >> Are we there yet? ...
>>> >>
>>> >> Well still nothing .. to report. I have just built a 4.5-rc5, but will
>>> >> wait till I get some outcome from the previous test. That can't be too
>>> >> much longer!
>>> >>
>>> >> In hope,
>>> >>
>>> >> Ross Green
>>> > Patience little ones ...
>>> >
>>> > Well after 2 days plus running pulled another stall.
>>> > This is with 4.5-rc4 and CONFIG_DEBUG_TIMEKEEPING set.
>>> >
>>> > Can't see anything related to the TIMEKEEPING.
>>> >
>>> > Anyway here is the dmesg output for people to look at.
>>> >
>>> > Paul, I was going to move onto 4.5-rc5 kernel, is there something else
>>> > that you want me to test with that, Anyone else have any suggestions
>>> > or ideas?
>>>
>>> Starting from kernel 3.17, if we request a e.g. 1000 jiffies schedule_timeout
>>> on a HZ=1000 kernel, is there an upper bound to the number of jiffies it
>>> can actually take before the timeout happens, especially on idle systems ?
>>> I remember a talk from Thomas Gleixner on the new timer wheel which could
>>> add some imprecision to those timeouts. Not sure in which kernel version it
>>> got in though.
>>>
>>> My thinking is that it might be a good idea to try using hrtimers rather than
>>> a jiffies-based timeout to awaken the RCU thread if it's really important to
>>> run in a bounded amount of jiffies. Or else the jiffies-based sanity check
>>> that triggers the warning is perhaps too strict.
>>
>> Some imprecision I could well understand. 21 seconds of imprecision
>> on a three-millisecond timeout I am having somewhat more difficulty
>> understanding. ;-)
>>
>> But I would rather avoid hrtimers for the RCU grace-period kthread
>> because a few milliseconds of adjustment for energy-efficiency
>> reasons is a very good thing.
>>
>> Still working on getting decent traces...
>>
>> Thanx, Paul
>>
>
> G'day all,
>
> Here is another dmesg output for 4.5-rc5 showing another rcu_preempt stall.
> This one appeared after only a day of running. CONFIG_DEBUG_TIMING is
> turned on, but can't see any output that shows from this.
>
> Again testing as before,
>
> Boot, run a series of small benchmarks, then just let the system be
> and idle away.
>
> I notice in the stack trace there is mention of hrtimer_run_queues and
> hrtimer_interrupt.
>
> Anyway, leave this for a few more eyes to look at.
>
> Open to any other suggestions of things to test.
>
> Regards,
>
> Ross Green
G'day Paul,
I left the pandaboard running and captured another stall.
the attachment is the dmesg output.
Again there is no apparent output from any CONFIG_DEBUG_TIMING so I
assume there is nothing happening there.
I just saw the updates for 4.6 RCU code.
Is the patch in [PATCH tip/core/rcu 04/13] valid here?
do you want me try the new patch set with this configuration?
Regards,
Ross Green
[-- Attachment #2: dmesg-4.5-rc5-2 --]
[-- Type: application/octet-stream, Size: 35772 bytes --]
# dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.5.0-rc5-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #2 S6
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c0966300, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7ab000 s17984 r8192 d22976 u49152
[ 0.000000] pcpu-alloc: s17984 r8192 d22976 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027232K/1046528K available (6883K kernel code, 252K rwdata, 2156K rodata, 300K init, 298K bss, 19296K)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08dc0d4 (9041 kB)
.init : 0xc08dd000 - 0xc0928000 ( 300 kB)
.data : 0xc0928000 - 0xc0967300 ( 253 kB)
.bss : 0xc096a000 - 0xc09b48b8 ( 299 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000]
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000854] Console: colour dummy device 80x30
[ 0.000885] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089202] pid_max: default: 32768 minimum: 301
[ 0.089263] Security Framework initialized
[ 0.089324] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089324] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089965] CPU: Testing write buffer coherency: ok
[ 0.090179] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090240] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.209197] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.209259] Brought up 2 CPUs
[ 0.209289] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.209289] CPU: All CPU(s) started in SVC mode.
[ 0.210083] devtmpfs: initialized
[ 0.226806] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.227294] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.227447] xor: measuring software checksum speed
[ 0.319183] arm4regs : 1000.000 MB/sec
[ 0.419158] 8regs : 804.000 MB/sec
[ 0.519165] 32regs : 760.800 MB/sec
[ 0.519195] xor: using function: arm4regs (1000.000 MB/sec)
[ 0.519439] pinctrl core: initialized pinctrl subsystem
[ 0.521331] NET: Registered protocol family 16
[ 0.522186] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.523864] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.525390] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.630828] OMAP GPIO hardware version 0.1
[ 0.636108] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.636108] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.636657] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637023] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637420] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.649230] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.649536] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.655517] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.655517] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.656158] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.656372] OMAP DMA hardware revision 0.0
[ 0.909423] raid6: int32x1 gen() 103 MB/s
[ 1.079467] raid6: int32x1 xor() 82 MB/s
[ 1.249237] raid6: int32x2 gen() 134 MB/s
[ 1.419403] raid6: int32x2 xor() 98 MB/s
[ 1.589385] raid6: int32x4 gen() 145 MB/s
[ 1.759429] raid6: int32x4 xor() 97 MB/s
[ 1.929260] raid6: int32x8 gen() 160 MB/s
[ 2.099487] raid6: int32x8 xor() 94 MB/s
[ 2.099487] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.099487] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.099517] raid6: using intx1 recovery algorithm
[ 2.105529] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.179321] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wle
[ 2.183563] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.183685] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.185760] SCSI subsystem initialized
[ 2.186065] usbcore: registered new interface driver usbfs
[ 2.186187] usbcore: registered new interface driver hub
[ 2.186340] usbcore: registered new device driver usb
[ 2.187286] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins,e
[ 2.187347] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins,e
[ 2.187377] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins,e
[ 2.187408] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins,e
[ 2.187683] Linux video capture interface: v2.00
[ 2.188415] Advanced Linux Sound Architecture Driver Initialized.
[ 2.189880] clocksource: Switched to clocksource 32k_counter
[ 2.204132] NET: Registered protocol family 2
[ 2.204803] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.204925] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.205047] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.205139] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.205169] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.205383] NET: Registered protocol family 1
[ 2.205749] RPC: Registered named UNIX socket transport module.
[ 2.205780] RPC: Registered udp transport module.
[ 2.205780] RPC: Registered tcp transport module.
[ 2.205780] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.208068] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.211242] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.233947] NFS: Registering the id_resolver key type
[ 2.233978] Key type id_resolver registered
[ 2.234008] Key type id_legacy registered
[ 2.234008] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.234039] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.235382] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.235687] fuse init (API version 7.24)
[ 2.238464] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.238555] bounce: pool size: 64 pages
[ 2.238555] io scheduler noop registered
[ 2.238586] io scheduler deadline registered
[ 2.238616] io scheduler cfq registered (default)
[ 2.239501] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.239715] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.242767] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.244354] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.244476] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.244995] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.245452] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.142425] console [ttyO2] enabled
[ 3.146545] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.157287] [drm] Initialized drm 1.1.0 20060810
[ 3.163757] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.171142] OMAP DSS rev 4.0
[ 3.174316] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.182647] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.191192] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.243072] loop: module loaded
[ 3.249145] usbcore: registered new interface driver smsc95xx
[ 3.255279] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.262115] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.279907] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.285614] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.293670] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.319885] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.326263] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.333374] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.340942] usb usb1: Product: EHCI Host Controller
[ 3.346069] usb usb1: Manufacturer: Linux 4.5.0-rc5-panda ehci_hcd
[ 3.352539] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.358123] hub 1-0:1.0: USB hub found
[ 3.362091] hub 1-0:1.0: 3 ports detected
[ 3.367004] usbcore: registered new interface driver cdc_wdm
[ 3.373077] usbcore: registered new interface driver usb-storage
[ 3.379791] i2c /dev entries driver
[ 3.383605] usbcore: registered new interface driver uvcvideo
[ 3.389617] USB Video Class driver (1.1.1)
[ 3.395111] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.402679] device-mapper: uevent: version 1.0.3
[ 3.407836] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.480865] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.486755] usbcore: registered new interface driver usbhid
[ 3.492584] usbhid: USB HID core driver
[ 3.497100] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.506408] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.517333] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.525299] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.532775] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.538482] Initializing XFRM netlink socket
[ 3.543029] NET: Registered protocol family 17
[ 3.547973] Key type dns_resolver registered
[ 3.552673] twl: not initialized
[ 3.556091] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.564697] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.573211] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.581695] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.590179] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.598663] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.607147] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.615661] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.623199] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.628936] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.636322] omap2_set_init_voltage: unable to set vdd_core
[ 3.642150] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.649414] omap2_set_init_voltage: unable to set vdd_iva
[ 3.656066] Power Management for TI OMAP4+ devices.
[ 3.661254] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.668487] ThumbEE CPU extension supported.
[ 3.673034] Registering SWP/SWPB emulation handler
[ 3.673065] SmartReflex Class3 initialized
[ 3.682525] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.707427] Btrfs loaded
[ 3.712707] dmm 4e000000.dmm: initialized all PAT entries
[ 3.730163] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.760406] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.766815] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.775482] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.797241] twl6040 0-004b: clk32k is not handled
[ 3.804412] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.811981] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.819000] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.825622] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.832000] omap_hsmmc 4809c000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 3.850494] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.857666] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.865997] hub 1-1:1.0: USB hub found
[ 3.870147] hub 1-1:1.0: 5 ports detected
[ 3.885772] omap_hsmmc 480d5000.mmc: omap_device: omap_device_enable() called from invalid state 1
[ 4.026062] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.041259] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 4.053192] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-02-22 14:14:55 UTC (1456150495)
[ 4.063568] sr_init: No PMIC hook to init smartreflex
[ 4.069244] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.077728] mmc1: new SDIO card at address 0001
[ 4.077728] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.077941] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.088684] VDAC: disabling
[ 4.089141] VANA: disabling
[ 4.089599] VUSB: disabling
[ 4.089965] ALSA device list:
[ 4.089965] #0: PandaBoardES
[ 4.114654] Waiting for root device /dev/mmcblk0p2...
[ 4.129089] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.140960] mmc0: new high speed SDHC card at address e624
[ 4.161804] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.179931] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.196685] mmcblk0: p1 p2 p3 p4
[ 4.241821] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.251098] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.281799] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.283599] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.304168] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.311523] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.322143] smsc95xx v1.0.4
[ 4.325714] devtmpfs: mounted
[ 4.328979] Freeing unused kernel memory: 300K (c08dd000 - c0928000)
[ 4.410034] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, c2:03:46:11:c
[ 4.672088] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.720947] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.859893] random: dd urandom read with 31 bits of entropy available
[ 9.680908] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 19.578399] Bluetooth: Core ver 2.21
[ 19.582489] NET: Registered protocol family 31
[ 19.587188] Bluetooth: HCI device and connection manager initialized
[ 19.594635] Bluetooth: HCI socket layer initialized
[ 19.599731] Bluetooth: L2CAP socket layer initialized
[ 19.605316] Bluetooth: SCO socket layer initialized
[ 27.174468] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 27.185882] NFSD: starting 90-second grace period (net c0960800)
[ 30.303527] random: nonblocking pool is initialized
[ 56.984252] wlcore: loaded
[ 65.072265] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 65.807983] wlcore: ERROR ELP wakeup timeout!
[ 65.812622] ------------[ cut here ]------------
[ 65.817535] WARNING: CPU: 1 PID: 1116 at drivers/net/wireless/ti/wlcore/main.c:787 wl1271_op_cancel_hw_scan+0x838/0x83c [w)
[ 65.830047] Modules linked in: btwilink st_drv wl12xx wlcore_sdio wlcore mac80211 cfg80211 bluetooth
[ 65.830047] CPU: 1 PID: 1116 Comm: wpa_supplicant Not tainted 4.5.0-rc5-panda #2
[ 65.839874] Hardware name: Generic OMAP4 (Flattened Device Tree)
[ 65.853942] Backtrace:
[ 65.853942] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[ 65.864562] r7:bf0e6bf4 r6:60030113 r5:c0947d74 r4:00000000
[ 65.869873] [<c0014164>] (show_stack) from [<c03a2364>] (dump_stack+0x94/0xa8)
[ 65.878265] [<c03a22d0>] (dump_stack) from [<c0034c98>] (warn_slowpath_common+0x88/0xb8)
[ 65.886810] r7:bf0e6bf4 r6:00000313 r5:00000009 r4:00000000
[ 65.890624] [<c0034c10>] (warn_slowpath_common) from [<c0034d6c>] (warn_slowpath_null+0x24/0x2c)
[ 65.899871] r8:bf103540 r7:ee9a8d94 r6:00000000 r5:c092a100 r4:ee9a8d40
[ 65.899871] [<c0034d48>] (warn_slowpath_null) from [<bf0e6bf4>] (wl1271_op_cancel_hw_scan+0x838/0x83c [wlcore])
[ 65.919952] [<bf0e6b94>] (wl1271_op_cancel_hw_scan [wlcore]) from [<bf0e8e98>] (wl12xx_queue_recovery_work+0x1c/0x20 [wlco)
[ 65.929870] r5:c092a100 r4:ee9a8d40
[ 65.929870] [<bf0e8e7c>] (wl12xx_queue_recovery_work [wlcore]) from [<bf0f26d4>] (wl1271_ps_elp_wakeup+0x200/0x208 [wlcore)
[ 65.947723] [<bf0f24d4>] (wl1271_ps_elp_wakeup [wlcore]) from [<bf0e4114>] (wl1271_op_hw_scan+0x68/0xe0 [wlcore])
[ 65.951965] r10:ef0034f8 r9:ee9a83e0 r8:00000000 r7:ef355e00 r6:ee9a8d7c r5:00000000
[ 65.959869] r4:ee9a8d40
[ 65.959869] [<bf0e40ac>] (wl1271_op_hw_scan [wlcore]) from [<bf0938a0>] (ieee80211_sched_scan_stopped+0x294/0x4dc [mac8021)
[ 65.959869] r10:00000000 r9:ee9ffcf0 r8:00000000 r7:ee9a8ab0 r6:ef003400 r5:eebeb4c0
[ 65.989868] r4:ee9a83e0
[ 65.989868] [<bf0936a0>] (ieee80211_sched_scan_stopped [mac80211]) from [<bf09456c>] (ieee80211_request_scan+0x30/0x48 [ma)
[ 65.999877] r9:ee9ffcf0 r8:00000112 r7:ee9a8000 r6:ef003400 r5:0000064c r4:eebeb4c0
[ 66.009857] [<bf09453c>] (ieee80211_request_scan [mac80211]) from [<bf0a3184>] (ieee80211_scan+0x8c/0xc8 [mac80211])
[ 66.024505] r7:ee9a8000 r6:ef003400 r5:00000000 r4:eebeb4c0
[ 66.030609] [<bf0a30f8>] (ieee80211_scan [mac80211]) from [<bf072770>] (nl80211_trigger_scan+0x600/0x65c [cfg80211])
[ 66.039855] r5:00000000 r4:ee863924
[ 66.039855] [<bf072170>] (nl80211_trigger_scan [cfg80211]) from [<c06141e4>] (genl_rcv_msg+0x264/0x400)
[ 66.055511] r10:edc58400 r9:c0960800 r8:00000000 r7:ef377a80 r6:ee863914 r5:bf07a158
[ 66.055511] r4:bf07ba48
[ 66.064208] [<c0613f80>] (genl_rcv_msg) from [<c0613430>] (netlink_rcv_skb+0xa8/0xc4)
[ 66.068542] r10:ef377a80 r9:00000000 r8:00000000 r7:ef377a80 r6:ef377a80 r5:c0613f80
[ 66.083099] r4:ee863900
[ 66.083099] [<c0613388>] (netlink_rcv_skb) from [<c0613f70>] (genl_rcv+0x2c/0x3c)
[ 66.089874] r7:ef377a80 r6:00000024 r5:ef377a80 r4:c09620a4
[ 66.093719] [<c0613f44>] (genl_rcv) from [<c0612d48>] (netlink_unicast+0x170/0x258)
[ 66.093719] r5:ee86b800 r4:ef153800
[ 66.111633] [<c0612bd8>] (netlink_unicast) from [<c06131f8>] (netlink_sendmsg+0x2f8/0x360)
[ 66.120361] r8:00000000 r7:00000024 r6:ee86b800 r5:00000000 r4:ee9fff4c
[ 66.120361] [<c0612f00>] (netlink_sendmsg) from [<c05d43c0>] (sock_sendmsg+0x1c/0x2c)
[ 66.135772] r10:00000000 r9:ee9ffe28 r8:00000000 r7:eed4dc80 r6:00000000 r5:00000000
[ 66.135772] r4:ee9fff4c
[ 66.135772] [<c05d43a4>] (sock_sendmsg) from [<c05d4a60>] (___sys_sendmsg+0x1f4/0x1fc)
[ 66.152099] [<c05d486c>] (___sys_sendmsg) from [<c05d5824>] (__sys_sendmsg+0x44/0x70)
[ 66.152099] r10:00000000 r9:ee9fe000 r8:c000fce8 r7:00000128 r6:eed4dc80 r5:00000000
[ 66.171752] r4:bed4aa34
[ 66.174438] [<c05d57e0>] (__sys_sendmsg) from [<c05d5860>] (SyS_sendmsg+0x10/0x14)
[ 66.180175] r6:0008d9d8 r5:0008e188 r4:0008da50
[ 66.180175] [<c05d5850>] (SyS_sendmsg) from [<c000fae0>] (ret_fast_syscall+0x0/0x3c)
[ 66.195648] ---[ end trace 0a879fbe88a91723 ]---
[ 66.200653] wlcore: Hardware recovery in progress. FW ver: Rev 6.3.10.0.133
[ 66.200653] ------------[ cut here ]------------
[ 66.217193] WARNING: CPU: 1 PID: 17 at drivers/net/wireless/ti/wlcore/io.h:64 wlcore_set_partition+0xa8/0x450 [wlcore]()
[ 66.228729] Modules linked in: btwilink st_drv wl12xx wlcore_sdio wlcore mac80211 cfg80211 bluetooth
[ 66.231811] CPU: 1 PID: 17 Comm: kworker/u4:1 Tainted: G W 4.5.0-rc5-panda #2
[ 66.246429] Hardware name: Generic OMAP4 (Flattened Device Tree)
[ 66.246429] Workqueue: phy0 wl1271_recovery_work [wlcore]
[ 66.253631] Backtrace:
[ 66.259918] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[ 66.269958] r7:bf0ee8b0 r6:600c0113 r5:c0947d74 r4:00000000
[ 66.269958] [<c0014164>] (show_stack) from [<c03a2364>] (dump_stack+0x94/0xa8)
[ 66.269958] [<c03a22d0>] (dump_stack) from [<c0034c98>] (warn_slowpath_common+0x88/0xb8)
[ 66.269958] r7:bf0ee8b0 r6:00000040 r5:00000009 r4:00000000
[ 66.296539] [<c0034c10>] (warn_slowpath_common) from [<c0034d6c>] (warn_slowpath_null+0x24/0x2c)
[ 66.296539] r8:ee9a8d7c r7:ee878200 r6:fffffffb r5:bf1212cc r4:ee9a8d40
[ 66.296539] [<c0034d48>] (warn_slowpath_null) from [<bf0ee8b0>] (wlcore_set_partition+0xa8/0x450 [wlcore])
[ 66.324890] [<bf0ee808>] (wlcore_set_partition [wlcore]) from [<bf0e60fc>] (wl1271_recovery_work+0x74/0x334 [wlcore])
[ 66.324890] r6:ee9a8d40 r5:ef043f80 r4:ee9a8fec
[ 66.324890] [<bf0e6088>] (wl1271_recovery_work [wlcore]) from [<c004a6f4>] (process_one_work+0x128/0x400)
[ 66.346649] r8:00000000 r7:ee878200 r6:ef00b000 r5:ef043f80 r4:ee9a8fec
[ 66.346649] [<c004a5cc>] (process_one_work) from [<c004aa20>] (worker_thread+0x54/0x58c)
[ 66.366851] r10:ef043f80 r9:ef14a020 r8:ef00b018 r7:c092a100 r6:00000088 r5:ef043f98
[ 66.366851] r4:ef00b000
[ 66.366851] [<c004a9cc>] (worker_thread) from [<c005053c>] (kthread+0xe4/0xfc)
[ 66.385498] r10:00000000 r9:00000000 r8:00000000 r7:c004a9cc r6:ef043f80 r5:ef1404c0
[ 66.385498] r4:00000000
[ 66.385498] [<c0050458>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[ 66.404144] r7:00000000 r6:00000000 r5:c0050458 r4:ef1404c0
[ 66.410247] ---[ end trace 0a879fbe88a91724 ]---
[ 66.411651] wlcore: down
[ 66.418945] ieee80211 phy0: Hardware restart was requested
[ 66.997100] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 70.594848] wlan0: authenticate with 90:f6:52:81:ee:70
[ 70.609497] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 70.616821] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 70.623901] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 70.631286] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 74.182769] wlan0: authenticate with 90:f6:52:81:ee:70
[ 74.196655] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 74.203765] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 74.210845] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 74.217895] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 78.127929] wlan0: authenticate with 90:f6:52:81:ee:70
[ 78.180389] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 78.188415] wlan0: authenticated
[ 78.204956] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 78.215667] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 78.230895] wlan0: associated
[ 78.291473] wlcore: Association completed.
[ 147.359924] NFSD: Unable to end grace period: -110
[ 251.135437] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[91494.584503] INFO: rcu_preempt detected stalls on CPUs/tasks:
[91494.587402] (detected by 1, t=7368 jiffies, g=283842, c=283841, q=103)
[91494.597412] All QSes seen, last rcu_preempt kthread activity 7367 (9119441-9112074), jiffies_till_next_fqs=1, root ->qsmas0
[91494.609649] swapper/1 R running 0 0 1 0x00000000
[91494.616394] Backtrace:
[91494.618408] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[91494.619018] r7:2ee94000 r6:c0927340 r5:00000001 r4:ef077480
[91494.619018] [<c0014164>] (show_stack) from [<c005ac70>] (sched_show_task+0xbc/0x110)
[91494.638977] [<c005abb4>] (sched_show_task) from [<c0087100>] (rcu_check_callbacks+0x8d0/0x8e4)
[91494.641265] r5:c093a080 r4:ef7bb340
[91494.653533] [<c0086830>] (rcu_check_callbacks) from [<c0089f60>] (update_process_times+0x40/0x6c)
[91494.659667] r10:c009b9c4 r9:00000001 r8:ef7b7c4c r7:00005336 r6:b43a3541 r5:00000000
[91494.671874] r4:ef077480
[91494.671874] [<c0089f20>] (update_process_times) from [<c009b9c0>] (tick_sched_handle+0x50/0x54)
[91494.678985] r5:ef09ff58 r4:ef7b7e40
[91494.687561] [<c009b970>] (tick_sched_handle) from [<c009ba14>] (tick_sched_timer+0x50/0x94)
[91494.696411] [<c009b9c4>] (tick_sched_timer) from [<c008a9a4>] (__hrtimer_run_queues+0x110/0x1a4)
[91494.700347] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[91494.708374] [<c008a894>] (__hrtimer_run_queues) from [<c008b038>] (hrtimer_interrupt+0xac/0x1fc)
[91494.717407] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[91494.727416] r4:ef7b7c00
[91494.732025] [<c008af8c>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[91494.732025] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[91494.748199] r4:00000001
[91494.751403] [<c00171d4>] (twd_handler) from [<c007d034>] (handle_percpu_devid_irq+0x74/0x8c)
[91494.757415] r5:ef005cc0 r4:ef7bd780
[91494.764129] [<c007cfc0>] (handle_percpu_devid_irq) from [<c0078abc>] (generic_handle_irq+0x2c/0x3c)
[91494.767395] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092441c
[91494.781097] [<c0078a90>] (generic_handle_irq) from [<c0078db4>] (__handle_domain_irq+0x64/0xbc)
[91494.791137] [<c0078d50>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[91494.791137] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a8 r4:c0947f88
[91494.808197] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[91494.814727] Exception stack(0xef09ff58 to 0xef09ffa0)
[91494.818664] ff40: 00000000 ef7b7390
[91494.818664] ff60: fe600000 00000000 ef09e000 c092a49c c092336c ef09ffc8 c09670a5 c09670a5
[91494.837402] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028a30 c0010ca0 60010113 ffffffff
[91494.837402] r9:c09670a5 r8:c09670a5 r7:ef09ff8c r6:ffffffff r5:60010113 r4:c0010ca0
[91494.837402] [<c0010c78>] (arch_cpu_idle) from [<c006f728>] (default_idle_call+0x28/0x34)
[91494.857452] [<c006f700>] (default_idle_call) from [<c006f84c>] (cpu_startup_entry+0x118/0x188)
[91494.873352] [<c006f734>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[91494.877410] r7:c096a288 r4:c093d140
[91494.882934] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[91494.882934] r5:00000051 r4:af08406a
[91494.898345] rcu_preempt kthread starved for 7367 jiffies! g283842 c283841 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[91494.900360] rcu_preempt W c06bab48 0 7 2 0x00000000
[91494.914428] Backtrace:
[91494.914428] [<c06ba97c>] (__schedule) from [<c06baed8>] (schedule+0x54/0xc4)
[91494.921508] r10:c092a518 r9:00000001 r8:008b0a0b r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[91494.934112] r4:ef096000
[91494.934112] [<c06bae84>] (schedule) from [<c06bdcd8>] (schedule_timeout+0x118/0x1ac)
[91494.945007] r5:ef7b73c0 r4:ef7b73c0
[91494.945007] [<c06bdbc0>] (schedule_timeout) from [<c00860f4>] (rcu_gp_kthread+0x64c/0x99c)
[91494.957397] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[91494.957397] [<c0085aa8>] (rcu_gp_kthread) from [<c005053c>] (kthread+0xe4/0xfc)
[91494.972412] r7:c0085aa8
[91494.972412] [<c0050458>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[91494.982391] r7:00000000 r6:00000000 r5:c0050458 r4:ef0407c0
[165120.566680] INFO: rcu_preempt self-detected stall on CPU
[165120.566680] INFO: rcu_preempt detected stalls on CPUs/tasks:
[165120.566741] 0-...: (1 ticks this GP) idle=625/1/0 softirq=1178484/1178484 fqs=1
[165120.566741]
[165120.566741] (detected by 1, t=13451 jiffies, g=511998, c=511997, q=188)
[165120.566741] Task dump for CPU 0:
[165120.566741] swapper/0 R
[165120.566772] running
[165120.566772] 0 0 0 0x00000000
[165120.566772] Backtrace:
[165120.566772] Backtrace aborted due to bad frame pointer <c0929f54>
[165120.566802] rcu_preempt kthread starved for 13450 jiffies! g511998 c511997 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[165120.566802] rcu_preempt S
[165120.566802] c06bab48
[165120.566802] 0 7 2 0x00000000
[165120.566802] Backtrace:
[165120.566802] [<c06ba97c>] (__schedule) from [<c06baed8>] (schedule+0x54/0xc4)
[165120.566802] r10:c092a518
[165120.566802] r9:00000001
[165120.566864] r8:00fb4a71
[165120.566864] r7:c092a100
[165120.566864] r6:ef097ed4
[165120.566864] r5:ef7b73c0
[165120.566864] r4:ef096000
[165120.566894] [<c06bae84>] (schedule) from [<c06bdcd8>] (schedule_timeout+0x118/0x1ac)
[165120.566894] r5:ef7b73c0
[165120.566894] r4:ef7b73c0
[165120.566925] [<c06bdbc0>] (schedule_timeout) from [<c00860f4>] (rcu_gp_kthread+0x64c/0x99c)
[165120.566925] r8:c092a100
[165120.566925] r7:c093a210
[165120.566925] r6:c093a21c
[165120.566955] r5:c093a080
[165120.566955] r4:00000000
[165120.566955] [<c0085aa8>] (rcu_gp_kthread) from [<c005053c>] (kthread+0xe4/0xfc)
[165120.566955] r7:c0085aa8
[165120.566986] [<c0050458>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[165120.566986] r7:00000000
[165120.566986] r6:00000000
[165120.567016] r5:c0050458
[165120.567016] r4:ef0407c0
[165120.706115] 0-...: (1 GPs behind) idle=625/1/0 softirq=1178484/1178484 fqs=10
[165120.706115] (t=15 jiffies g=511999 c=511998 q=188)
[165120.715515] Task dump for CPU 0:
[165120.720520] swapper/0 R running 0 0 0 0x00000002
[165120.729736] Backtrace:
[165120.729736] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[165120.729736] r7:c092a518 r6:800c0193 r5:00000000 r4:c092d180
[165120.746673] [<c0014164>] (show_stack) from [<c005ac70>] (sched_show_task+0xbc/0x110)
[165120.746673] [<c005abb4>] (sched_show_task) from [<c005d100>] (dump_cpu_task+0x40/0x48)
[165120.763427] r5:c093a080 r4:00000000
[165120.763427] [<c005d0c0>] (dump_cpu_task) from [<c00828cc>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[165120.776153] r5:c093a080 r4:00000001
[165120.776153] [<c0082830>] (rcu_dump_cpu_stacks) from [<c0086d30>] (rcu_check_callbacks+0x500/0x8e4)
[165120.780059] r9:c093a080 r8:c092a628 r7:2ee88000 r6:c0927340 r5:c093a080 r4:ef7af340
[165120.797943] [<c0086830>] (rcu_check_callbacks) from [<c0089f60>] (update_process_times+0x40/0x6c)
[165120.797943] r10:c009b9c4 r9:00000001 r8:ef7abc4c r7:0000962d r6:186106c1 r5:00000000
[165120.807434] r4:c092d180
[165120.807434] [<c0089f20>] (update_process_times) from [<c009b9c0>] (tick_sched_handle+0x50/0x54)
[165120.827911] r5:c0929f10 r4:ef7abe40
[165120.827911] [<c009b970>] (tick_sched_handle) from [<c009ba14>] (tick_sched_timer+0x50/0x94)
[165120.827911] [<c009b9c4>] (tick_sched_timer) from [<c008a9a4>] (__hrtimer_run_queues+0x110/0x1a4)
[165120.850128] r7:00000000 r6:ef7abc40 r5:ef7abe40 r4:ef7abc00
[165120.850128] [<c008a894>] (__hrtimer_run_queues) from [<c008b038>] (hrtimer_interrupt+0xac/0x1fc)
[165120.850128] r10:ef7abc78 r9:ef7abc98 r8:ef7abc14 r7:ef7abcb8 r6:ffffffff r5:00000003
[165120.874023] r4:ef7abc00
[165120.874023] [<c008af8c>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[165120.874023] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a8 r5:ef005cc0
[165120.893676] r4:00000001
[165120.893676] [<c00171d4>] (twd_handler) from [<c007d034>] (handle_percpu_devid_irq+0x74/0x8c)
[165120.905487] r5:ef005cc0 r4:ef7b1780
[165120.905487] [<c007cfc0>] (handle_percpu_devid_irq) from [<c0078abc>] (generic_handle_irq+0x2c/0x3c)
[165120.919036] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092441c
[165120.919036] [<c0078a90>] (generic_handle_irq) from [<c0078db4>] (__handle_domain_irq+0x64/0xbc)
[165120.919036] [<c0078d50>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[165120.945587] r9:fa241100 r8:fa240100 r7:c0929f10 r6:fa24010c r5:c092a7a8 r4:c0947f88
[165120.945587] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[165120.961914] Exception stack(0xc0929f10 to 0xc0929f58)
[165120.961914] 9f00: 00000000 ef7ab390 fe600000 00000000
[165120.976104] 9f20: c0928000 c092a49c c092336c c0929f80 c09670a5 c09670a5 c092a4ec c0929f6c
[165120.976104] 9f40: c0929f4c c0929f60 c0028a30 c0010ca0 600c0113 ffffffff
[165120.991943] r9:c09670a5 r8:c09670a5 r7:c0929f44 r6:ffffffff r5:600c0113 r4:c0010ca0
[165120.991943] [<c0010c78>] (arch_cpu_idle) from [<c006f728>] (default_idle_call+0x28/0x34)
[165120.991943] [<c006f700>] (default_idle_call) from [<c006f84c>] (cpu_startup_entry+0x118/0x188)
[165120.991943] [<c006f734>] (cpu_startup_entry) from [<c06ba2b0>] (rest_init+0x90/0x94)
[165121.026428] r7:ffffffff r4:00000002
[165121.026428] [<c06ba220>] (rest_init) from [<c08ddd0c>] (start_kernel+0x390/0x39c)
[165121.026428] r5:c096a000 r4:00000000
[165121.042236] [<c08dd97c>] (start_kernel) from [<8000807c>] (0x8000807c)
#
#
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-25 5:13 ` Ross Green
@ 2016-02-26 0:56 ` Paul E. McKenney
2016-02-26 1:35 ` Paul E. McKenney
2016-03-18 21:00 ` Josh Triplett
0 siblings, 2 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-26 0:56 UTC (permalink / raw)
To: Ross Green
Cc: Mathieu Desnoyers, John Stultz, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
On Thu, Feb 25, 2016 at 04:13:11PM +1100, Ross Green wrote:
> On Wed, Feb 24, 2016 at 8:28 AM, Ross Green <rgkernel@gmail.com> wrote:
> > On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney
> > <paulmck@linux.vnet.ibm.com> wrote:
[ . . . ]
> >> Still working on getting decent traces...
And I might have succeeded, see below.
> >>
> >> Thanx, Paul
> >>
> >
> > G'day all,
> >
> > Here is another dmesg output for 4.5-rc5 showing another rcu_preempt stall.
> > This one appeared after only a day of running. CONFIG_DEBUG_TIMING is
> > turned on, but can't see any output that shows from this.
> >
> > Again testing as before,
> >
> > Boot, run a series of small benchmarks, then just let the system be
> > and idle away.
> >
> > I notice in the stack trace there is mention of hrtimer_run_queues and
> > hrtimer_interrupt.
> >
> > Anyway, leave this for a few more eyes to look at.
> >
> > Open to any other suggestions of things to test.
> >
> > Regards,
> >
> > Ross Green
>
>
> G'day Paul,
>
> I left the pandaboard running and captured another stall.
>
> the attachment is the dmesg output.
>
> Again there is no apparent output from any CONFIG_DEBUG_TIMING so I
> assume there is nothing happening there.
I agree, looks like this is not due to time skew.
> I just saw the updates for 4.6 RCU code.
> Is the patch in [PATCH tip/core/rcu 04/13] valid here?
I doubt that it will help, but you never know.
> do you want me try the new patch set with this configuration?
Even better would be to try Daniel Wagner's swait patchset. I have
attached them in UNIX mbox format, or you can get them from the
-tip tree.
And I -finally- got some tracing that -might- be useful. The dmesg, all
67MB of it, is here:
http://www.rdrop.com/~paulmck/submission/console.2016.02.23a.log
This failure mode is less likely to happen, and looks a bit different
than the ones that I was seeing before enabling tracing. Then, an
additional wakeup would actually wake the task up. In contrast, with
tracing enabled, the RCU grace-period kthread goes into "teenager mode",
refusing to wake up despite repeated attempts. However, this might
be a side-effect of the ftrace dump.
On line 525,132, we see that the rcu_preempt grace-period kthread has
been starved for 1,188,154 jiffies, or about 20 minutes. This seems
unlikely... The kthread is waiting for no more than a three-jiffy
timeout ("RCU_GP_WAIT_FQS(3)") and is in TASK_INTERRUPTIBLE state
("0x1"). I have replaced the old event-waiting with a straight
schedule_timeout_interruptible() as an (ineffective) desperation move.
But this dmesg also contains a trace with sched_waking and sched_wakeup
enabled. Here are the entries corresponding to the grace-period kthread
in reverse time order:
[ 1205.567414] rcu_pree-7 5d..2 1175375682us : sched_waking: comm=rcub/9 pid=34 prio=97 target_cpu=005
[ 1205.567414] rcu_pree-7 5dN.3 1175375685us : sched_wakeup: comm=rcub/9 pid=34 prio=97 target_cpu=005
This is the last sched_wakeup trace entry, 29 seconds before
the end of the trace. After this, we see a sched_waking event
about every three milliseconds.
[ 1205.567414] rcu_pree-7 4d..2 1175381643us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175384644us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175387662us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175390643us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175393644us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175396651us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175399665us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175402646us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175405647us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175408650us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175411669us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175414659us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175417654us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175420661us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175423679us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175426657us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175429660us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175432660us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175435681us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175460700us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175464687us : sched_waking: comm=rcub/14 pid=89 prio=97 target_cpu=014
[ 1205.567414] rcu_pree-7 4d..2 1175467728us : sched_waking: comm=rcub/14 pid=89 prio=97 target_cpu=014
[ 1205.567414] rcu_pree-7 4d..2 1175477679us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175477696us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175493687us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175506686us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175516696us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175516714us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175529700us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175536704us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175539737us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175542707us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175545704us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175548709us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175551740us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175554709us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175566714us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
[ 1205.567414] rcu_pree-7 4d..2 1175566732us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175569724us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175572719us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175575750us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175578717us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175581718us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175584721us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175587748us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175590728us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175593724us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175596724us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175599761us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175602726us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175605728us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
[ 1205.567414] rcu_pree-7 4d..2 1175612737us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175615753us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175618737us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175621736us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175624738us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175627757us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175630741us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175633741us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175636745us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175639765us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175642744us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175645745us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175648750us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175651771us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175654751us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175657750us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175660752us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175663779us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175666752us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175669753us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175672757us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175675782us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175678756us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175681761us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175684761us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175687778us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175690762us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175693763us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
[ 1205.567414] rcu_pree-7 4d..2 1175696766us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
We might have lost some events, but losing that many in that pattern
seems unlikely.
OK, so what wakeup path omits the sched_wakeup event?
The sched_waking event looks to occur once in try_to_wake_up() and
once in try_to_wake_up_local(). Starting with try_to_wake_up():
o If the task is ->on_rq, ttwu_remote() is invoked:
o This acquires the runqueue lock, then if
task_on_rq_queued() invokes ttwu_do_wakeup(). This
unconditionally does sched_wakeup, so we didn't go that
way. (And this path skips the bulk of try_to_wake_up()
on return.)
o Otherwise, we release the runqueu lock and returns zero.
o There is some ordering checking, runqueue selection, and then
p->state is set to TASK_WAKING. And we apparently are not getting
here, either. But I don't see any other way out.
Ignoring this for the moment...
We eventually reach to the call to ttwu_queue().
o Here the TTWU_QUEUE path seems to avoid doing a
sched_wakeup event -- and since we are trying to wake
CPU 0 from CPU 4, so they don't share cache (x86).
o This invokes ttwu_queue_remote(), which sends an IPI
unless polling is in effect. I would need to enable
trace_sched_wake_idle_without_ipi() to see whether or
not the IPI was actually sent.
If the target CPU was offline, we should have seen the
cpu_is_offline() WARN_ON(). I suppose that the CPU might
go offline between the check and the ->send_IPI_mask(),
but only once. And we are trying to wakeup on CPU 0
quite a few times.
Any thoughts on what to look for?
Next, try_to_wake_up_local():
o After doing several checks, it does the sched_waking event.
o If the task is already queued, it calls ttwu_activate().
o It then invokes ttwu_do_wakeup(), which unconditionally
does the sched_wakeup() event.
So this path looks unlikely, even ignoring the fact that
the waking CPU in the traces above is always different than
the CPU to be awakened on.
Any thoughts?
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-26 0:56 ` Paul E. McKenney
@ 2016-02-26 1:35 ` Paul E. McKenney
2016-03-04 5:30 ` Ross Green
2016-03-18 21:00 ` Josh Triplett
1 sibling, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-02-26 1:35 UTC (permalink / raw)
To: Ross Green
Cc: Mathieu Desnoyers, John Stultz, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 14521 bytes --]
This time actually attaching Daniel's patches...
Thanx, Paul
On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
> On Thu, Feb 25, 2016 at 04:13:11PM +1100, Ross Green wrote:
> > On Wed, Feb 24, 2016 at 8:28 AM, Ross Green <rgkernel@gmail.com> wrote:
> > > On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney
> > > <paulmck@linux.vnet.ibm.com> wrote:
>
> [ . . . ]
>
> > >> Still working on getting decent traces...
>
> And I might have succeeded, see below.
>
> > >>
> > >> Thanx, Paul
> > >>
> > >
> > > G'day all,
> > >
> > > Here is another dmesg output for 4.5-rc5 showing another rcu_preempt stall.
> > > This one appeared after only a day of running. CONFIG_DEBUG_TIMING is
> > > turned on, but can't see any output that shows from this.
> > >
> > > Again testing as before,
> > >
> > > Boot, run a series of small benchmarks, then just let the system be
> > > and idle away.
> > >
> > > I notice in the stack trace there is mention of hrtimer_run_queues and
> > > hrtimer_interrupt.
> > >
> > > Anyway, leave this for a few more eyes to look at.
> > >
> > > Open to any other suggestions of things to test.
> > >
> > > Regards,
> > >
> > > Ross Green
> >
> >
> > G'day Paul,
> >
> > I left the pandaboard running and captured another stall.
> >
> > the attachment is the dmesg output.
> >
> > Again there is no apparent output from any CONFIG_DEBUG_TIMING so I
> > assume there is nothing happening there.
>
> I agree, looks like this is not due to time skew.
>
> > I just saw the updates for 4.6 RCU code.
> > Is the patch in [PATCH tip/core/rcu 04/13] valid here?
>
> I doubt that it will help, but you never know.
>
> > do you want me try the new patch set with this configuration?
>
> Even better would be to try Daniel Wagner's swait patchset. I have
> attached them in UNIX mbox format, or you can get them from the
> -tip tree.
>
> And I -finally- got some tracing that -might- be useful. The dmesg, all
> 67MB of it, is here:
>
> http://www.rdrop.com/~paulmck/submission/console.2016.02.23a.log
>
> This failure mode is less likely to happen, and looks a bit different
> than the ones that I was seeing before enabling tracing. Then, an
> additional wakeup would actually wake the task up. In contrast, with
> tracing enabled, the RCU grace-period kthread goes into "teenager mode",
> refusing to wake up despite repeated attempts. However, this might
> be a side-effect of the ftrace dump.
>
> On line 525,132, we see that the rcu_preempt grace-period kthread has
> been starved for 1,188,154 jiffies, or about 20 minutes. This seems
> unlikely... The kthread is waiting for no more than a three-jiffy
> timeout ("RCU_GP_WAIT_FQS(3)") and is in TASK_INTERRUPTIBLE state
> ("0x1"). I have replaced the old event-waiting with a straight
> schedule_timeout_interruptible() as an (ineffective) desperation move.
>
> But this dmesg also contains a trace with sched_waking and sched_wakeup
> enabled. Here are the entries corresponding to the grace-period kthread
> in reverse time order:
>
> [ 1205.567414] rcu_pree-7 5d..2 1175375682us : sched_waking: comm=rcub/9 pid=34 prio=97 target_cpu=005
> [ 1205.567414] rcu_pree-7 5dN.3 1175375685us : sched_wakeup: comm=rcub/9 pid=34 prio=97 target_cpu=005
>
> This is the last sched_wakeup trace entry, 29 seconds before
> the end of the trace. After this, we see a sched_waking event
> about every three milliseconds.
>
> [ 1205.567414] rcu_pree-7 4d..2 1175381643us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175384644us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175387662us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175390643us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175393644us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175396651us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175399665us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175402646us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175405647us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175408650us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175411669us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175414659us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175417654us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175420661us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175423679us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175426657us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175429660us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175432660us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175435681us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175460700us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175464687us : sched_waking: comm=rcub/14 pid=89 prio=97 target_cpu=014
> [ 1205.567414] rcu_pree-7 4d..2 1175467728us : sched_waking: comm=rcub/14 pid=89 prio=97 target_cpu=014
> [ 1205.567414] rcu_pree-7 4d..2 1175477679us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175477696us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175493687us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175506686us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175516696us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175516714us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175529700us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175536704us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175539737us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175542707us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175545704us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175548709us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175551740us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175554709us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175566714us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
> [ 1205.567414] rcu_pree-7 4d..2 1175566732us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175569724us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175572719us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175575750us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175578717us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175581718us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175584721us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175587748us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175590728us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175593724us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175596724us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175599761us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175602726us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175605728us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
> [ 1205.567414] rcu_pree-7 4d..2 1175612737us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175615753us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175618737us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175621736us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175624738us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175627757us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175630741us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175633741us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175636745us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175639765us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175642744us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175645745us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175648750us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175651771us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175654751us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175657750us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175660752us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175663779us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175666752us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175669753us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175672757us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175675782us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175678756us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175681761us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175684761us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175687778us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175690762us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175693763us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
> [ 1205.567414] rcu_pree-7 4d..2 1175696766us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>
> We might have lost some events, but losing that many in that pattern
> seems unlikely.
>
> OK, so what wakeup path omits the sched_wakeup event?
>
> The sched_waking event looks to occur once in try_to_wake_up() and
> once in try_to_wake_up_local(). Starting with try_to_wake_up():
>
> o If the task is ->on_rq, ttwu_remote() is invoked:
>
> o This acquires the runqueue lock, then if
> task_on_rq_queued() invokes ttwu_do_wakeup(). This
> unconditionally does sched_wakeup, so we didn't go that
> way. (And this path skips the bulk of try_to_wake_up()
> on return.)
>
> o Otherwise, we release the runqueu lock and returns zero.
>
> o There is some ordering checking, runqueue selection, and then
> p->state is set to TASK_WAKING. And we apparently are not getting
> here, either. But I don't see any other way out.
>
> Ignoring this for the moment...
>
> We eventually reach to the call to ttwu_queue().
>
> o Here the TTWU_QUEUE path seems to avoid doing a
> sched_wakeup event -- and since we are trying to wake
> CPU 0 from CPU 4, so they don't share cache (x86).
>
> o This invokes ttwu_queue_remote(), which sends an IPI
> unless polling is in effect. I would need to enable
> trace_sched_wake_idle_without_ipi() to see whether or
> not the IPI was actually sent.
>
> If the target CPU was offline, we should have seen the
> cpu_is_offline() WARN_ON(). I suppose that the CPU might
> go offline between the check and the ->send_IPI_mask(),
> but only once. And we are trying to wakeup on CPU 0
> quite a few times.
>
> Any thoughts on what to look for?
>
> Next, try_to_wake_up_local():
>
> o After doing several checks, it does the sched_waking event.
>
> o If the task is already queued, it calls ttwu_activate().
>
> o It then invokes ttwu_do_wakeup(), which unconditionally
> does the sched_wakeup() event.
>
> So this path looks unlikely, even ignoring the fact that
> the waking CPU in the traces above is always different than
> the CPU to be awakened on.
>
> Any thoughts?
>
> Thanx, Paul
[-- Attachment #2: wagi.patch --]
[-- Type: text/x-diff, Size: 82291 bytes --]
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From: Daniel Wagner <wagi@monom.org>
To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>, Paolo Bonzini
<pbonzini@redhat.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, Paul Gortmaker
<paul.gortmaker@windriver.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>, Thomas Gleixner <tglx@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>, Boqun Feng
<boqun.feng@gmail.com>, Daniel Wagner <daniel.wagner@bmw-carit.de>
Subject: [PATCH tip v8 0/5] Simple wait queue support
Date: Fri, 19 Feb 2016 09:46:36 +0100
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From: Daniel Wagner <daniel.wagner@bmw-carit.de>
Hi,
This version of the series got some compile time. I tried
to weed out the incompatible-pointer-types warning in mainline.
In the last verison I included two patches to fix those warnings.
In the meantime these patches are either already in mainline
or on the way. I found a couple more of them and sent out fixes.
Overall it looks quite good on that front. So I don't think
-Werror=incompatible-pointer-types will be a big desaster. Famous last
words...
I was able to build alpha, arm32, arm64, cris10, frv, ia64, mips32,
mips64, m68k, ppc64, s390, sparc32, sparc64, um_x86_64 and x86_64 with
toolchains I got. There are a comple of missing architectures though
like avr32, blackfin, cris32, m32r, parsic, parsic64, ppc32, sh32,
sh64, tile and xtensa for which I have toolchains but they are broken
in some way beyound easy fixing.
These patches are against
tip/sched/core 3223d052b79eb9b620d170584c417d60a8bfd649
also available as git tree:
git://git.kernel.org/pub/scm/linux/kernel/git/wagi/linux.git tip-swait
cheers,
daniel
changes since v7:
- dropped random fixes for incompatible-pointer-types warning
- sent out patches for fixing incompatible-pointer-types warnings
changes since v6:
- fixed a couple of incompatible-pointer-types errors
- fixed a missing KVM ARM wait -> swait update
changes since v5:
- unconditionally add -Werror=incompatible-pointer-types
- updated KVM statistics in commit message
- rebased on tip/sched/core
- added ack-by PeterZ
changes since v4:
- replaced patch #2 which tried to force to compiler to
exit with an error by using compile time assertion type
check macros. Instead use -Werror=incompatible-pointer-types
to tell the compiler to barf loudly.
- fixed wrong API usage in patch 4 as reported by Boqun.
changes since v3
- rebased it on tip/sched/core (KVM bits have changed slightly)
- added compile time type check assertion
- added non lazy version of swake_up_locked()
changes since v2
- rebased again on tip/master. The patches apply
cleanly on v4.3-rc6 too.
- fixed up mips
- reordered patches to avoid lockdep warning when doing bissect.
- remove unnecessary initialization of rsp->rda in rcu_init_one().
changes since v1 (PATCH v0)
- rebased and fixed some typos found by cross building
for S390, ARM and powerpc. For some unknown reason didn't catch
them last time.
- dropped completion patches because it is not clear yet
how to handle complete_all() calls hard-irq/atomic contexts
and swake_up_all.
changes since v0 (RFC v0)
- promoted the series to PATCH state instead of RFC
- fixed a few fallouts with build all and some cross compilers
such ARM, PowerPC, S390.
- Added the simple waitqueue transformation for KVM from -rt
including some numbers requested by Paolo.
- Added a commit message to PeterZ's patch. Hope he likes it.
[I got the numbering wrong in v1, so instead 'PATCH v1' you find it
as 'PATCH v0' series]
v7: https://lkml.org/lkml/2016/1/29/305
v6: https://lkml.org/lkml/2016/1/28/462
v5: https://lkml.org/lkml/2015/11/30/318
v4: https://lwn.net/Articles/665655/
v3: https://lwn.net/Articles/661415/
v2: https://lwn.net/Articles/660628/
v1: https://lwn.net/Articles/656942/
v0: https://lwn.net/Articles/653586/
Daniel Wagner (2):
kbuild: Add option to turn incompatible pointer check into error
rcu: Do not call rcu_nocb_gp_cleanup() while holding rnp->lock
Marcelo Tosatti (1):
KVM: use simple waitqueue for vcpu->wq
Paul Gortmaker (1):
rcu: use simple wait queues where possible in rcutree
Peter Zijlstra (Intel) (1):
wait.[ch]: Introduce the simple waitqueue (swait) implementation
Makefile | 3 +
arch/arm/kvm/arm.c | 8 +-
arch/arm/kvm/psci.c | 4 +-
arch/mips/kvm/mips.c | 8 +-
arch/powerpc/include/asm/kvm_host.h | 4 +-
arch/powerpc/kvm/book3s_hv.c | 23 +++--
arch/s390/include/asm/kvm_host.h | 2 +-
arch/s390/kvm/interrupt.c | 4 +-
arch/x86/kvm/lapic.c | 6 +-
include/linux/kvm_host.h | 5 +-
include/linux/swait.h | 172 ++++++++++++++++++++++++++++++++++++
kernel/rcu/tree.c | 24 ++---
kernel/rcu/tree.h | 12 +--
kernel/rcu/tree_plugin.h | 32 ++++---
kernel/sched/Makefile | 2 +-
kernel/sched/swait.c | 123 ++++++++++++++++++++++++++
virt/kvm/async_pf.c | 4 +-
virt/kvm/kvm_main.c | 17 ++--
18 files changed, 382 insertions(+), 71 deletions(-)
create mode 100644 include/linux/swait.h
create mode 100644 kernel/sched/swait.c
--
2.5.0
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From: Daniel Wagner <wagi@monom.org>
To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>, Paolo Bonzini
<pbonzini@redhat.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, Paul Gortmaker
<paul.gortmaker@windriver.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>, Thomas Gleixner <tglx@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>, Boqun Feng
<boqun.feng@gmail.com>, Daniel Wagner <daniel.wagner@bmw-carit.de>
Subject: [PATCH v8 1/5] wait.[ch]: Introduce the simple waitqueue (swait)
implementation
Date: Fri, 19 Feb 2016 09:46:37 +0100
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From: "Peter Zijlstra (Intel)" <peterz@infradead.org>
The existing wait queue support has support for custom wake up call
backs, wake flags, wake key (passed to call back) and exclusive
flags that allow wakers to be tagged as exclusive, for limiting
the number of wakers.
In a lot of cases, none of these features are used, and hence we
can benefit from a slimmed down version that lowers memory overhead
and reduces runtime overhead.
The concept originated from -rt, where waitqueues are a constant
source of trouble, as we can't convert the head lock to a raw
spinlock due to fancy and long lasting callbacks.
With the removal of custom callbacks, we can use a raw lock for
queue list manipulations, hence allowing the simple wait support
to be used in -rt.
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Originally-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
[Patch is from PeterZ which is based on Thomas version.
Commit message is written by Paul G.
Daniel:
- And some compile issues fixed.
- Added non-lazy implementation of swake_up_locked as suggested by Boqun Feng.]
---
include/linux/swait.h | 172 ++++++++++++++++++++++++++++++++++++++++++++++++++
kernel/sched/Makefile | 2 +-
kernel/sched/swait.c | 123 ++++++++++++++++++++++++++++++++++++
3 files changed, 296 insertions(+), 1 deletion(-)
create mode 100644 include/linux/swait.h
create mode 100644 kernel/sched/swait.c
diff --git a/include/linux/swait.h b/include/linux/swait.h
new file mode 100644
index 0000000..c1f9c62
--- /dev/null
+++ b/include/linux/swait.h
@@ -0,0 +1,172 @@
+#ifndef _LINUX_SWAIT_H
+#define _LINUX_SWAIT_H
+
+#include <linux/list.h>
+#include <linux/stddef.h>
+#include <linux/spinlock.h>
+#include <asm/current.h>
+
+/*
+ * Simple wait queues
+ *
+ * While these are very similar to the other/complex wait queues (wait.h) the
+ * most important difference is that the simple waitqueue allows for
+ * deterministic behaviour -- IOW it has strictly bounded IRQ and lock hold
+ * times.
+ *
+ * In order to make this so, we had to drop a fair number of features of the
+ * other waitqueue code; notably:
+ *
+ * - mixing INTERRUPTIBLE and UNINTERRUPTIBLE sleeps on the same waitqueue;
+ * all wakeups are TASK_NORMAL in order to avoid O(n) lookups for the right
+ * sleeper state.
+ *
+ * - the exclusive mode; because this requires preserving the list order
+ * and this is hard.
+ *
+ * - custom wake functions; because you cannot give any guarantees about
+ * random code.
+ *
+ * As a side effect of this; the data structures are slimmer.
+ *
+ * One would recommend using this wait queue where possible.
+ */
+
+struct task_struct;
+
+struct swait_queue_head {
+ raw_spinlock_t lock;
+ struct list_head task_list;
+};
+
+struct swait_queue {
+ struct task_struct *task;
+ struct list_head task_list;
+};
+
+#define __SWAITQUEUE_INITIALIZER(name) { \
+ .task = current, \
+ .task_list = LIST_HEAD_INIT((name).task_list), \
+}
+
+#define DECLARE_SWAITQUEUE(name) \
+ struct swait_queue name = __SWAITQUEUE_INITIALIZER(name)
+
+#define __SWAIT_QUEUE_HEAD_INITIALIZER(name) { \
+ .lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock), \
+ .task_list = LIST_HEAD_INIT((name).task_list), \
+}
+
+#define DECLARE_SWAIT_QUEUE_HEAD(name) \
+ struct swait_queue_head name = __SWAIT_QUEUE_HEAD_INITIALIZER(name)
+
+extern void __init_swait_queue_head(struct swait_queue_head *q, const char *name,
+ struct lock_class_key *key);
+
+#define init_swait_queue_head(q) \
+ do { \
+ static struct lock_class_key __key; \
+ __init_swait_queue_head((q), #q, &__key); \
+ } while (0)
+
+#ifdef CONFIG_LOCKDEP
+# define __SWAIT_QUEUE_HEAD_INIT_ONSTACK(name) \
+ ({ init_swait_queue_head(&name); name; })
+# define DECLARE_SWAIT_QUEUE_HEAD_ONSTACK(name) \
+ struct swait_queue_head name = __SWAIT_QUEUE_HEAD_INIT_ONSTACK(name)
+#else
+# define DECLARE_SWAIT_QUEUE_HEAD_ONSTACK(name) \
+ DECLARE_SWAIT_QUEUE_HEAD(name)
+#endif
+
+static inline int swait_active(struct swait_queue_head *q)
+{
+ return !list_empty(&q->task_list);
+}
+
+extern void swake_up(struct swait_queue_head *q);
+extern void swake_up_all(struct swait_queue_head *q);
+extern void swake_up_locked(struct swait_queue_head *q);
+
+extern void __prepare_to_swait(struct swait_queue_head *q, struct swait_queue *wait);
+extern void prepare_to_swait(struct swait_queue_head *q, struct swait_queue *wait, int state);
+extern long prepare_to_swait_event(struct swait_queue_head *q, struct swait_queue *wait, int state);
+
+extern void __finish_swait(struct swait_queue_head *q, struct swait_queue *wait);
+extern void finish_swait(struct swait_queue_head *q, struct swait_queue *wait);
+
+/* as per ___wait_event() but for swait, therefore "exclusive == 0" */
+#define ___swait_event(wq, condition, state, ret, cmd) \
+({ \
+ struct swait_queue __wait; \
+ long __ret = ret; \
+ \
+ INIT_LIST_HEAD(&__wait.task_list); \
+ for (;;) { \
+ long __int = prepare_to_swait_event(&wq, &__wait, state);\
+ \
+ if (condition) \
+ break; \
+ \
+ if (___wait_is_interruptible(state) && __int) { \
+ __ret = __int; \
+ break; \
+ } \
+ \
+ cmd; \
+ } \
+ finish_swait(&wq, &__wait); \
+ __ret; \
+})
+
+#define __swait_event(wq, condition) \
+ (void)___swait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, \
+ schedule())
+
+#define swait_event(wq, condition) \
+do { \
+ if (condition) \
+ break; \
+ __swait_event(wq, condition); \
+} while (0)
+
+#define __swait_event_timeout(wq, condition, timeout) \
+ ___swait_event(wq, ___wait_cond_timeout(condition), \
+ TASK_UNINTERRUPTIBLE, timeout, \
+ __ret = schedule_timeout(__ret))
+
+#define swait_event_timeout(wq, condition, timeout) \
+({ \
+ long __ret = timeout; \
+ if (!___wait_cond_timeout(condition)) \
+ __ret = __swait_event_timeout(wq, condition, timeout); \
+ __ret; \
+})
+
+#define __swait_event_interruptible(wq, condition) \
+ ___swait_event(wq, condition, TASK_INTERRUPTIBLE, 0, \
+ schedule())
+
+#define swait_event_interruptible(wq, condition) \
+({ \
+ int __ret = 0; \
+ if (!(condition)) \
+ __ret = __swait_event_interruptible(wq, condition); \
+ __ret; \
+})
+
+#define __swait_event_interruptible_timeout(wq, condition, timeout) \
+ ___swait_event(wq, ___wait_cond_timeout(condition), \
+ TASK_INTERRUPTIBLE, timeout, \
+ __ret = schedule_timeout(__ret))
+
+#define swait_event_interruptible_timeout(wq, condition, timeout) \
+({ \
+ long __ret = timeout; \
+ if (!___wait_cond_timeout(condition)) \
+ __ret = __swait_event_interruptible_timeout(wq, \
+ condition, timeout); \
+ __ret; \
+})
+
+#endif /* _LINUX_SWAIT_H */
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile
index 6768797..7d4cba2 100644
--- a/kernel/sched/Makefile
+++ b/kernel/sched/Makefile
@@ -13,7 +13,7 @@ endif
obj-y += core.o loadavg.o clock.o cputime.o
obj-y += idle_task.o fair.o rt.o deadline.o stop_task.o
-obj-y += wait.o completion.o idle.o
+obj-y += wait.o swait.o completion.o idle.o
obj-$(CONFIG_SMP) += cpupri.o cpudeadline.o
obj-$(CONFIG_SCHED_AUTOGROUP) += auto_group.o
obj-$(CONFIG_SCHEDSTATS) += stats.o
diff --git a/kernel/sched/swait.c b/kernel/sched/swait.c
new file mode 100644
index 0000000..82f0dff
--- /dev/null
+++ b/kernel/sched/swait.c
@@ -0,0 +1,123 @@
+#include <linux/sched.h>
+#include <linux/swait.h>
+
+void __init_swait_queue_head(struct swait_queue_head *q, const char *name,
+ struct lock_class_key *key)
+{
+ raw_spin_lock_init(&q->lock);
+ lockdep_set_class_and_name(&q->lock, key, name);
+ INIT_LIST_HEAD(&q->task_list);
+}
+EXPORT_SYMBOL(__init_swait_queue_head);
+
+/*
+ * The thing about the wake_up_state() return value; I think we can ignore it.
+ *
+ * If for some reason it would return 0, that means the previously waiting
+ * task is already running, so it will observe condition true (or has already).
+ */
+void swake_up_locked(struct swait_queue_head *q)
+{
+ struct swait_queue *curr;
+
+ if (list_empty(&q->task_list))
+ return;
+
+ curr = list_first_entry(&q->task_list, typeof(*curr), task_list);
+ wake_up_process(curr->task);
+ list_del_init(&curr->task_list);
+}
+EXPORT_SYMBOL(swake_up_locked);
+
+void swake_up(struct swait_queue_head *q)
+{
+ unsigned long flags;
+
+ if (!swait_active(q))
+ return;
+
+ raw_spin_lock_irqsave(&q->lock, flags);
+ swake_up_locked(q);
+ raw_spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(swake_up);
+
+/*
+ * Does not allow usage from IRQ disabled, since we must be able to
+ * release IRQs to guarantee bounded hold time.
+ */
+void swake_up_all(struct swait_queue_head *q)
+{
+ struct swait_queue *curr;
+ LIST_HEAD(tmp);
+
+ if (!swait_active(q))
+ return;
+
+ raw_spin_lock_irq(&q->lock);
+ list_splice_init(&q->task_list, &tmp);
+ while (!list_empty(&tmp)) {
+ curr = list_first_entry(&tmp, typeof(*curr), task_list);
+
+ wake_up_state(curr->task, TASK_NORMAL);
+ list_del_init(&curr->task_list);
+
+ if (list_empty(&tmp))
+ break;
+
+ raw_spin_unlock_irq(&q->lock);
+ raw_spin_lock_irq(&q->lock);
+ }
+ raw_spin_unlock_irq(&q->lock);
+}
+EXPORT_SYMBOL(swake_up_all);
+
+void __prepare_to_swait(struct swait_queue_head *q, struct swait_queue *wait)
+{
+ wait->task = current;
+ if (list_empty(&wait->task_list))
+ list_add(&wait->task_list, &q->task_list);
+}
+
+void prepare_to_swait(struct swait_queue_head *q, struct swait_queue *wait, int state)
+{
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&q->lock, flags);
+ __prepare_to_swait(q, wait);
+ set_current_state(state);
+ raw_spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(prepare_to_swait);
+
+long prepare_to_swait_event(struct swait_queue_head *q, struct swait_queue *wait, int state)
+{
+ if (signal_pending_state(state, current))
+ return -ERESTARTSYS;
+
+ prepare_to_swait(q, wait, state);
+
+ return 0;
+}
+EXPORT_SYMBOL(prepare_to_swait_event);
+
+void __finish_swait(struct swait_queue_head *q, struct swait_queue *wait)
+{
+ __set_current_state(TASK_RUNNING);
+ if (!list_empty(&wait->task_list))
+ list_del_init(&wait->task_list);
+}
+
+void finish_swait(struct swait_queue_head *q, struct swait_queue *wait)
+{
+ unsigned long flags;
+
+ __set_current_state(TASK_RUNNING);
+
+ if (!list_empty_careful(&wait->task_list)) {
+ raw_spin_lock_irqsave(&q->lock, flags);
+ list_del_init(&wait->task_list);
+ raw_spin_unlock_irqrestore(&q->lock, flags);
+ }
+}
+EXPORT_SYMBOL(finish_swait);
--
2.5.0
>From wagi@monom.org Fri Feb 19 00:51:50 2016
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From: Daniel Wagner <wagi@monom.org>
To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>, Paolo Bonzini
<pbonzini@redhat.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, Paul Gortmaker
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Steven Rostedt <rostedt@goodmis.org>, Boqun Feng
<boqun.feng@gmail.com>, Daniel Wagner <daniel.wagner@bmw-carit.de>
Subject: [PATCH v8 2/5] kbuild: Add option to turn incompatible pointer check
into error
Date: Fri, 19 Feb 2016 09:46:38 +0100
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From: Daniel Wagner <daniel.wagner@bmw-carit.de>
With the introduction of the simple wait API we have two very
similar APIs in the kernel. For example wake_up() and swake_up()
is only one character away. Although the compiler will warn
happily the wrong usage it keeps on going an even links the kernel.
Thomas and Peter would rather like to see early missuses reported
as error early on.
In a first attempt we tried to wrap all swait and wait calls
into a macro which has an compile time type assertion. The result
was pretty ugly and wasn't able to catch all wrong usages.
woken_wake_function(), autoremove_wake_function() and wake_bit_function()
are assigned as function pointers. Wrapping them with a macro around is
not possible. Prefixing them with '_' was also not a real option
because there some users in the kernel which do use them as well.
All in all this attempt looked to intrusive and too ugly.
An alternative is to turn the pointer type check into an error which
catches wrong type uses. Obviously not only the swait/wait ones. That
isn't a bad thing either.
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
Makefile | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Makefile b/Makefile
index 6c1a3c2..4513509 100644
--- a/Makefile
+++ b/Makefile
@@ -773,6 +773,9 @@ KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes)
# Prohibit date/time macros, which would make the build non-deterministic
KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
+# enforce correct pointer usage
+KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types)
+
# use the deterministic mode of AR if available
KBUILD_ARFLAGS := $(call ar-option,D)
--
2.5.0
>From wagi@monom.org Fri Feb 19 00:51:52 2016
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From: Daniel Wagner <wagi@monom.org>
To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>, Paolo Bonzini
<pbonzini@redhat.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, Paul Gortmaker
<paul.gortmaker@windriver.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>, Thomas Gleixner <tglx@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>, Boqun Feng
<boqun.feng@gmail.com>, Daniel Wagner <daniel.wagner@bmw-carit.de>
Subject: [PATCH v8 3/5] KVM: use simple waitqueue for vcpu->wq
Date: Fri, 19 Feb 2016 09:46:39 +0100
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From: Marcelo Tosatti <mtosatti@redhat.com>
The problem:
On -rt, an emulated LAPIC timer instances has the following path:
1) hard interrupt
2) ksoftirqd is scheduled
3) ksoftirqd wakes up vcpu thread
4) vcpu thread is scheduled
This extra context switch introduces unnecessary latency in the
LAPIC path for a KVM guest.
The solution:
Allow waking up vcpu thread from hardirq context,
thus avoiding the need for ksoftirqd to be scheduled.
Normal waitqueues make use of spinlocks, which on -RT
are sleepable locks. Therefore, waking up a waitqueue
waiter involves locking a sleeping lock, which
is not allowed from hard interrupt context.
cyclictest command line:
This patch reduces the average latency in my tests from 14us to 11us.
Daniel writes:
Paolo asked for numbers from kvm-unit-tests/tscdeadline_latency
benchmark on mainline. The test was run 1000 times on
tip/sched/core 4.4.0-rc8-01134-g0905f04:
./x86-run x86/tscdeadline_latency.flat -cpu host
with idle=poll.
The test seems not to deliver really stable numbers though most of
them are smaller. Paolo write:
"Anything above ~10000 cycles means that the host went to C1 or
lower---the number means more or less nothing in that case.
The mean shows an improvement indeed."
Before:
min max mean std
count 1000.000000 1000.000000 1000.000000 1000.000000
mean 5162.596000 2019270.084000 5824.491541 20681.645558
std 75.431231 622607.723969 89.575700 6492.272062
min 4466.000000 23928.000000 5537.926500 585.864966
25% 5163.000000 1613252.750000 5790.132275 16683.745433
50% 5175.000000 2281919.000000 5834.654000 23151.990026
75% 5190.000000 2382865.750000 5861.412950 24148.206168
max 5228.000000 4175158.000000 6254.827300 46481.048691
After
min max mean std
count 1000.000000 1000.00000 1000.000000 1000.000000
mean 5143.511000 2076886.10300 5813.312474 21207.357565
std 77.668322 610413.09583 86.541500 6331.915127
min 4427.000000 25103.00000 5529.756600 559.187707
25% 5148.000000 1691272.75000 5784.889825 17473.518244
50% 5160.000000 2308328.50000 5832.025000 23464.837068
75% 5172.000000 2393037.75000 5853.177675 24223.969976
max 5222.000000 3922458.00000 6186.720500 42520.379830
[Patch was originaly based on the swait implementation found in the -rt
tree. Daniel ported it to mainline's version and gathered the
benchmark numbers for tscdeadline_latency test.]
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
---
arch/arm/kvm/arm.c | 8 ++++----
arch/arm/kvm/psci.c | 4 ++--
arch/mips/kvm/mips.c | 8 ++++----
arch/powerpc/include/asm/kvm_host.h | 4 ++--
arch/powerpc/kvm/book3s_hv.c | 23 +++++++++++------------
arch/s390/include/asm/kvm_host.h | 2 +-
arch/s390/kvm/interrupt.c | 4 ++--
arch/x86/kvm/lapic.c | 6 +++---
include/linux/kvm_host.h | 5 +++--
virt/kvm/async_pf.c | 4 ++--
virt/kvm/kvm_main.c | 17 ++++++++---------
11 files changed, 42 insertions(+), 43 deletions(-)
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index dda1959..08e49c4 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -506,18 +506,18 @@ static void kvm_arm_resume_guest(struct kvm *kvm)
struct kvm_vcpu *vcpu;
kvm_for_each_vcpu(i, vcpu, kvm) {
- wait_queue_head_t *wq = kvm_arch_vcpu_wq(vcpu);
+ struct swait_queue_head *wq = kvm_arch_vcpu_wq(vcpu);
vcpu->arch.pause = false;
- wake_up_interruptible(wq);
+ swake_up(wq);
}
}
static void vcpu_sleep(struct kvm_vcpu *vcpu)
{
- wait_queue_head_t *wq = kvm_arch_vcpu_wq(vcpu);
+ struct swait_queue_head *wq = kvm_arch_vcpu_wq(vcpu);
- wait_event_interruptible(*wq, ((!vcpu->arch.power_off) &&
+ swait_event_interruptible(*wq, ((!vcpu->arch.power_off) &&
(!vcpu->arch.pause)));
}
diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c
index a9b3b90..c2b1315 100644
--- a/arch/arm/kvm/psci.c
+++ b/arch/arm/kvm/psci.c
@@ -70,7 +70,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
{
struct kvm *kvm = source_vcpu->kvm;
struct kvm_vcpu *vcpu = NULL;
- wait_queue_head_t *wq;
+ struct swait_queue_head *wq;
unsigned long cpu_id;
unsigned long context_id;
phys_addr_t target_pc;
@@ -119,7 +119,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
smp_mb(); /* Make sure the above is visible */
wq = kvm_arch_vcpu_wq(vcpu);
- wake_up_interruptible(wq);
+ swake_up(wq);
return PSCI_RET_SUCCESS;
}
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 8bc3977..341f6a1 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -445,8 +445,8 @@ int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
dvcpu->arch.wait = 0;
- if (waitqueue_active(&dvcpu->wq))
- wake_up_interruptible(&dvcpu->wq);
+ if (swait_active(&dvcpu->wq))
+ swake_up(&dvcpu->wq);
return 0;
}
@@ -1174,8 +1174,8 @@ static void kvm_mips_comparecount_func(unsigned long data)
kvm_mips_callbacks->queue_timer_int(vcpu);
vcpu->arch.wait = 0;
- if (waitqueue_active(&vcpu->wq))
- wake_up_interruptible(&vcpu->wq);
+ if (swait_active(&vcpu->wq))
+ swake_up(&vcpu->wq);
}
/* low level hrtimer wake routine */
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 9d08d8c..c98afa5 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -289,7 +289,7 @@ struct kvmppc_vcore {
struct list_head runnable_threads;
struct list_head preempt_list;
spinlock_t lock;
- wait_queue_head_t wq;
+ struct swait_queue_head wq;
spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */
u64 stolen_tb;
u64 preempt_tb;
@@ -629,7 +629,7 @@ struct kvm_vcpu_arch {
u8 prodded;
u32 last_inst;
- wait_queue_head_t *wqp;
+ struct swait_queue_head *wqp;
struct kvmppc_vcore *vcore;
int ret;
int trap;
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index baeddb0..f1187bb 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -114,11 +114,11 @@ static bool kvmppc_ipi_thread(int cpu)
static void kvmppc_fast_vcpu_kick_hv(struct kvm_vcpu *vcpu)
{
int cpu;
- wait_queue_head_t *wqp;
+ struct swait_queue_head *wqp;
wqp = kvm_arch_vcpu_wq(vcpu);
- if (waitqueue_active(wqp)) {
- wake_up_interruptible(wqp);
+ if (swait_active(wqp)) {
+ swake_up(wqp);
++vcpu->stat.halt_wakeup;
}
@@ -701,8 +701,8 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
tvcpu->arch.prodded = 1;
smp_mb();
if (vcpu->arch.ceded) {
- if (waitqueue_active(&vcpu->wq)) {
- wake_up_interruptible(&vcpu->wq);
+ if (swait_active(&vcpu->wq)) {
+ swake_up(&vcpu->wq);
vcpu->stat.halt_wakeup++;
}
}
@@ -1459,7 +1459,7 @@ static struct kvmppc_vcore *kvmppc_vcore_create(struct kvm *kvm, int core)
INIT_LIST_HEAD(&vcore->runnable_threads);
spin_lock_init(&vcore->lock);
spin_lock_init(&vcore->stoltb_lock);
- init_waitqueue_head(&vcore->wq);
+ init_swait_queue_head(&vcore->wq);
vcore->preempt_tb = TB_NIL;
vcore->lpcr = kvm->arch.lpcr;
vcore->first_vcpuid = core * threads_per_subcore;
@@ -2531,10 +2531,9 @@ static void kvmppc_vcore_blocked(struct kvmppc_vcore *vc)
{
struct kvm_vcpu *vcpu;
int do_sleep = 1;
+ DECLARE_SWAITQUEUE(wait);
- DEFINE_WAIT(wait);
-
- prepare_to_wait(&vc->wq, &wait, TASK_INTERRUPTIBLE);
+ prepare_to_swait(&vc->wq, &wait, TASK_INTERRUPTIBLE);
/*
* Check one last time for pending exceptions and ceded state after
@@ -2548,7 +2547,7 @@ static void kvmppc_vcore_blocked(struct kvmppc_vcore *vc)
}
if (!do_sleep) {
- finish_wait(&vc->wq, &wait);
+ finish_swait(&vc->wq, &wait);
return;
}
@@ -2556,7 +2555,7 @@ static void kvmppc_vcore_blocked(struct kvmppc_vcore *vc)
trace_kvmppc_vcore_blocked(vc, 0);
spin_unlock(&vc->lock);
schedule();
- finish_wait(&vc->wq, &wait);
+ finish_swait(&vc->wq, &wait);
spin_lock(&vc->lock);
vc->vcore_state = VCORE_INACTIVE;
trace_kvmppc_vcore_blocked(vc, 1);
@@ -2612,7 +2611,7 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
kvmppc_start_thread(vcpu, vc);
trace_kvm_guest_enter(vcpu);
} else if (vc->vcore_state == VCORE_SLEEPING) {
- wake_up(&vc->wq);
+ swake_up(&vc->wq);
}
}
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 8959ebb..b0c8ad0 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -467,7 +467,7 @@ struct kvm_s390_irq_payload {
struct kvm_s390_local_interrupt {
spinlock_t lock;
struct kvm_s390_float_interrupt *float_int;
- wait_queue_head_t *wq;
+ struct swait_queue_head *wq;
atomic_t *cpuflags;
DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
struct kvm_s390_irq_payload irq;
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index f88ca72..9ffc732 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -966,13 +966,13 @@ no_timer:
void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu)
{
- if (waitqueue_active(&vcpu->wq)) {
+ if (swait_active(&vcpu->wq)) {
/*
* The vcpu gave up the cpu voluntarily, mark it as a good
* yield-candidate.
*/
vcpu->preempted = true;
- wake_up_interruptible(&vcpu->wq);
+ swake_up(&vcpu->wq);
vcpu->stat.halt_wakeup++;
}
}
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 36591fa..3a045f3 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1195,7 +1195,7 @@ static void apic_update_lvtt(struct kvm_lapic *apic)
static void apic_timer_expired(struct kvm_lapic *apic)
{
struct kvm_vcpu *vcpu = apic->vcpu;
- wait_queue_head_t *q = &vcpu->wq;
+ struct swait_queue_head *q = &vcpu->wq;
struct kvm_timer *ktimer = &apic->lapic_timer;
if (atomic_read(&apic->lapic_timer.pending))
@@ -1204,8 +1204,8 @@ static void apic_timer_expired(struct kvm_lapic *apic)
atomic_inc(&apic->lapic_timer.pending);
kvm_set_pending_timer(vcpu);
- if (waitqueue_active(q))
- wake_up_interruptible(q);
+ if (swait_active(q))
+ swake_up(q);
if (apic_lvtt_tscdeadline(apic))
ktimer->expired_tscdeadline = ktimer->tscdeadline;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 861f690..5276fe0 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -25,6 +25,7 @@
#include <linux/irqflags.h>
#include <linux/context_tracking.h>
#include <linux/irqbypass.h>
+#include <linux/swait.h>
#include <asm/signal.h>
#include <linux/kvm.h>
@@ -218,7 +219,7 @@ struct kvm_vcpu {
int fpu_active;
int guest_fpu_loaded, guest_xcr0_loaded;
unsigned char fpu_counter;
- wait_queue_head_t wq;
+ struct swait_queue_head wq;
struct pid *pid;
int sigset_active;
sigset_t sigset;
@@ -782,7 +783,7 @@ static inline bool kvm_arch_has_assigned_device(struct kvm *kvm)
}
#endif
-static inline wait_queue_head_t *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu)
+static inline struct swait_queue_head *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu)
{
#ifdef __KVM_HAVE_ARCH_WQP
return vcpu->arch.wqp;
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 3531599..73c1a2a 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -97,8 +97,8 @@ static void async_pf_execute(struct work_struct *work)
* This memory barrier pairs with prepare_to_wait's set_current_state()
*/
smp_mb();
- if (waitqueue_active(&vcpu->wq))
- wake_up_interruptible(&vcpu->wq);
+ if (swait_active(&vcpu->wq))
+ swake_up(&vcpu->wq);
mmput(mm);
kvm_put_kvm(vcpu->kvm);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a11cfd2..f8417d0 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -216,8 +216,7 @@ int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
vcpu->kvm = kvm;
vcpu->vcpu_id = id;
vcpu->pid = NULL;
- vcpu->halt_poll_ns = 0;
- init_waitqueue_head(&vcpu->wq);
+ init_swait_queue_head(&vcpu->wq);
kvm_async_pf_vcpu_init(vcpu);
vcpu->pre_pcpu = -1;
@@ -1990,7 +1989,7 @@ static int kvm_vcpu_check_block(struct kvm_vcpu *vcpu)
void kvm_vcpu_block(struct kvm_vcpu *vcpu)
{
ktime_t start, cur;
- DEFINE_WAIT(wait);
+ DECLARE_SWAITQUEUE(wait);
bool waited = false;
u64 block_ns;
@@ -2015,7 +2014,7 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu)
kvm_arch_vcpu_blocking(vcpu);
for (;;) {
- prepare_to_wait(&vcpu->wq, &wait, TASK_INTERRUPTIBLE);
+ prepare_to_swait(&vcpu->wq, &wait, TASK_INTERRUPTIBLE);
if (kvm_vcpu_check_block(vcpu) < 0)
break;
@@ -2024,7 +2023,7 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu)
schedule();
}
- finish_wait(&vcpu->wq, &wait);
+ finish_swait(&vcpu->wq, &wait);
cur = ktime_get();
kvm_arch_vcpu_unblocking(vcpu);
@@ -2056,11 +2055,11 @@ void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
{
int me;
int cpu = vcpu->cpu;
- wait_queue_head_t *wqp;
+ struct swait_queue_head *wqp;
wqp = kvm_arch_vcpu_wq(vcpu);
- if (waitqueue_active(wqp)) {
- wake_up_interruptible(wqp);
+ if (swait_active(wqp)) {
+ swake_up(wqp);
++vcpu->stat.halt_wakeup;
}
@@ -2161,7 +2160,7 @@ void kvm_vcpu_on_spin(struct kvm_vcpu *me)
continue;
if (vcpu == me)
continue;
- if (waitqueue_active(&vcpu->wq) && !kvm_arch_vcpu_runnable(vcpu))
+ if (swait_active(&vcpu->wq) && !kvm_arch_vcpu_runnable(vcpu))
continue;
if (!kvm_vcpu_eligible_for_directed_yield(vcpu))
continue;
--
2.5.0
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From: Daniel Wagner <wagi@monom.org>
To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>, Paolo Bonzini
<pbonzini@redhat.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, Paul Gortmaker
<paul.gortmaker@windriver.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>, Thomas Gleixner <tglx@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>, Boqun Feng
<boqun.feng@gmail.com>, Daniel Wagner <daniel.wagner@bmw-carit.de>
Subject: [PATCH v8 4/5] rcu: Do not call rcu_nocb_gp_cleanup() while holding
rnp->lock
Date: Fri, 19 Feb 2016 09:46:40 +0100
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From: Daniel Wagner <daniel.wagner@bmw-carit.de>
rcu_nocb_gp_cleanup() is called while holding rnp->lock. Currently,
this is okay because the wake_up_all() in rcu_nocb_gp_cleanup() will
not enable the IRQs. lockdep is happy.
By switching over using swait this is not true anymore. swake_up_all()
enables the IRQs while processing the waiters. __do_softirq() can now
run and will eventually call rcu_process_callbacks() which wants to
grap nrp->lock.
Let's move the rcu_nocb_gp_cleanup() call outside the lock before we
switch over to swait.
If we would hold the rnp->lock and use swait, lockdep reports
following:
=================================
[ INFO: inconsistent lock state ]
4.2.0-rc5-00025-g9a73ba0 #136 Not tainted
---------------------------------
inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
rcu_preempt/8 [HC0[0]:SC0[0]:HE1:SE1] takes:
(rcu_node_1){+.?...}, at: [<ffffffff811387c7>] rcu_gp_kthread+0xb97/0xeb0
{IN-SOFTIRQ-W} state was registered at:
[<ffffffff81109b9f>] __lock_acquire+0xd5f/0x21e0
[<ffffffff8110be0f>] lock_acquire+0xdf/0x2b0
[<ffffffff81841cc9>] _raw_spin_lock_irqsave+0x59/0xa0
[<ffffffff81136991>] rcu_process_callbacks+0x141/0x3c0
[<ffffffff810b1a9d>] __do_softirq+0x14d/0x670
[<ffffffff810b2214>] irq_exit+0x104/0x110
[<ffffffff81844e96>] smp_apic_timer_interrupt+0x46/0x60
[<ffffffff81842e70>] apic_timer_interrupt+0x70/0x80
[<ffffffff810dba66>] rq_attach_root+0xa6/0x100
[<ffffffff810dbc2d>] cpu_attach_domain+0x16d/0x650
[<ffffffff810e4b42>] build_sched_domains+0x942/0xb00
[<ffffffff821777c2>] sched_init_smp+0x509/0x5c1
[<ffffffff821551e3>] kernel_init_freeable+0x172/0x28f
[<ffffffff8182cdce>] kernel_init+0xe/0xe0
[<ffffffff8184231f>] ret_from_fork+0x3f/0x70
irq event stamp: 76
hardirqs last enabled at (75): [<ffffffff81841330>] _raw_spin_unlock_irq+0x30/0x60
hardirqs last disabled at (76): [<ffffffff8184116f>] _raw_spin_lock_irq+0x1f/0x90
softirqs last enabled at (0): [<ffffffff810a8df2>] copy_process.part.26+0x602/0x1cf0
softirqs last disabled at (0): [< (null)>] (null)
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(rcu_node_1);
<Interrupt>
lock(rcu_node_1);
*** DEADLOCK ***
1 lock held by rcu_preempt/8:
#0: (rcu_node_1){+.?...}, at: [<ffffffff811387c7>] rcu_gp_kthread+0xb97/0xeb0
stack backtrace:
CPU: 0 PID: 8 Comm: rcu_preempt Not tainted 4.2.0-rc5-00025-g9a73ba0 #136
Hardware name: Dell Inc. PowerEdge R820/066N7P, BIOS 2.0.20 01/16/2014
0000000000000000 000000006d7e67d8 ffff881fb081fbd8 ffffffff818379e0
0000000000000000 ffff881fb0812a00 ffff881fb081fc38 ffffffff8110813b
0000000000000000 0000000000000001 ffff881f00000001 ffffffff8102fa4f
Call Trace:
[<ffffffff818379e0>] dump_stack+0x4f/0x7b
[<ffffffff8110813b>] print_usage_bug+0x1db/0x1e0
[<ffffffff8102fa4f>] ? save_stack_trace+0x2f/0x50
[<ffffffff811087ad>] mark_lock+0x66d/0x6e0
[<ffffffff81107790>] ? check_usage_forwards+0x150/0x150
[<ffffffff81108898>] mark_held_locks+0x78/0xa0
[<ffffffff81841330>] ? _raw_spin_unlock_irq+0x30/0x60
[<ffffffff81108a28>] trace_hardirqs_on_caller+0x168/0x220
[<ffffffff81108aed>] trace_hardirqs_on+0xd/0x10
[<ffffffff81841330>] _raw_spin_unlock_irq+0x30/0x60
[<ffffffff810fd1c7>] swake_up_all+0xb7/0xe0
[<ffffffff811386e1>] rcu_gp_kthread+0xab1/0xeb0
[<ffffffff811089bf>] ? trace_hardirqs_on_caller+0xff/0x220
[<ffffffff81841341>] ? _raw_spin_unlock_irq+0x41/0x60
[<ffffffff81137c30>] ? rcu_barrier+0x20/0x20
[<ffffffff810d2014>] kthread+0x104/0x120
[<ffffffff81841330>] ? _raw_spin_unlock_irq+0x30/0x60
[<ffffffff810d1f10>] ? kthread_create_on_node+0x260/0x260
[<ffffffff8184231f>] ret_from_fork+0x3f/0x70
[<ffffffff810d1f10>] ? kthread_create_on_node+0x260/0x260
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
kernel/rcu/tree.c | 4 +++-
kernel/rcu/tree.h | 3 ++-
kernel/rcu/tree_plugin.h | 16 +++++++++++++---
3 files changed, 18 insertions(+), 5 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index e41dd41..8e8c6ec 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1614,7 +1614,6 @@ static int rcu_future_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
int needmore;
struct rcu_data *rdp = this_cpu_ptr(rsp->rda);
- rcu_nocb_gp_cleanup(rsp, rnp);
rnp->need_future_gp[c & 0x1] = 0;
needmore = rnp->need_future_gp[(c + 1) & 0x1];
trace_rcu_future_gp(rnp, rdp, c,
@@ -2010,6 +2009,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
int nocb = 0;
struct rcu_data *rdp;
struct rcu_node *rnp = rcu_get_root(rsp);
+ wait_queue_head_t *sq;
WRITE_ONCE(rsp->gp_activity, jiffies);
raw_spin_lock_irq_rcu_node(rnp);
@@ -2046,7 +2046,9 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
needgp = __note_gp_changes(rsp, rnp, rdp) || needgp;
/* smp_mb() provided by prior unlock-lock pair. */
nocb += rcu_future_gp_cleanup(rsp, rnp);
+ sq = rcu_nocb_gp_get(rnp);
raw_spin_unlock_irq(&rnp->lock);
+ rcu_nocb_gp_cleanup(sq);
cond_resched_rcu_qs();
WRITE_ONCE(rsp->gp_activity, jiffies);
rcu_gp_slow(rsp, gp_cleanup_delay);
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 83360b4..10dedfb 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -621,7 +621,8 @@ static void zero_cpu_stall_ticks(struct rcu_data *rdp);
static void increment_cpu_stall_ticks(void);
static bool rcu_nocb_cpu_needs_barrier(struct rcu_state *rsp, int cpu);
static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq);
-static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp);
+static wait_queue_head_t *rcu_nocb_gp_get(struct rcu_node *rnp);
+static void rcu_nocb_gp_cleanup(wait_queue_head_t *sq);
static void rcu_init_one_nocb(struct rcu_node *rnp);
static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
bool lazy, unsigned long flags);
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 9467a8b..631aff6 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1811,9 +1811,9 @@ early_param("rcu_nocb_poll", parse_rcu_nocb_poll);
* Wake up any no-CBs CPUs' kthreads that were waiting on the just-ended
* grace period.
*/
-static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
+static void rcu_nocb_gp_cleanup(wait_queue_head_t *sq)
{
- wake_up_all(&rnp->nocb_gp_wq[rnp->completed & 0x1]);
+ wake_up_all(sq);
}
/*
@@ -1829,6 +1829,11 @@ static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq)
rnp->need_future_gp[(rnp->completed + 1) & 0x1] += nrq;
}
+static wait_queue_head_t *rcu_nocb_gp_get(struct rcu_node *rnp)
+{
+ return &rnp->nocb_gp_wq[rnp->completed & 0x1];
+}
+
static void rcu_init_one_nocb(struct rcu_node *rnp)
{
init_waitqueue_head(&rnp->nocb_gp_wq[0]);
@@ -2502,7 +2507,7 @@ static bool rcu_nocb_cpu_needs_barrier(struct rcu_state *rsp, int cpu)
return false;
}
-static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
+static void rcu_nocb_gp_cleanup(wait_queue_head_t *sq)
{
}
@@ -2510,6 +2515,11 @@ static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq)
{
}
+static wait_queue_head_t *rcu_nocb_gp_get(struct rcu_node *rnp)
+{
+ return NULL;
+}
+
static void rcu_init_one_nocb(struct rcu_node *rnp)
{
}
--
2.5.0
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From: Daniel Wagner <wagi@monom.org>
To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>, Paolo Bonzini
<pbonzini@redhat.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, Paul Gortmaker
<paul.gortmaker@windriver.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>, Thomas Gleixner <tglx@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>, Boqun Feng
<boqun.feng@gmail.com>, Daniel Wagner <daniel.wagner@bmw-carit.de>
Subject: [PATCH v8 5/5] rcu: use simple wait queues where possible in rcutree
Date: Fri, 19 Feb 2016 09:46:41 +0100
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From: Paul Gortmaker <paul.gortmaker@windriver.com>
As of commit dae6e64d2bcfd4b06304ab864c7e3a4f6b5fedf4 ("rcu: Introduce
proper blocking to no-CBs kthreads GP waits") the RCU subsystem started
making use of wait queues.
Here we convert all additions of RCU wait queues to use simple wait queues,
since they don't need the extra overhead of the full wait queue features.
Originally this was done for RT kernels[1], since we would get things like...
BUG: sleeping function called from invalid context at kernel/rtmutex.c:659
in_atomic(): 1, irqs_disabled(): 1, pid: 8, name: rcu_preempt
Pid: 8, comm: rcu_preempt Not tainted
Call Trace:
[<ffffffff8106c8d0>] __might_sleep+0xd0/0xf0
[<ffffffff817d77b4>] rt_spin_lock+0x24/0x50
[<ffffffff8106fcf6>] __wake_up+0x36/0x70
[<ffffffff810c4542>] rcu_gp_kthread+0x4d2/0x680
[<ffffffff8105f910>] ? __init_waitqueue_head+0x50/0x50
[<ffffffff810c4070>] ? rcu_gp_fqs+0x80/0x80
[<ffffffff8105eabb>] kthread+0xdb/0xe0
[<ffffffff8106b912>] ? finish_task_switch+0x52/0x100
[<ffffffff817e0754>] kernel_thread_helper+0x4/0x10
[<ffffffff8105e9e0>] ? __init_kthread_worker+0x60/0x60
[<ffffffff817e0750>] ? gs_change+0xb/0xb
...and hence simple wait queues were deployed on RT out of necessity
(as simple wait uses a raw lock), but mainline might as well take
advantage of the more streamline support as well.
[1] This is a carry forward of work from v3.10-rt; the original conversion
was by Thomas on an earlier -rt version, and Sebastian extended it to
additional post-3.10 added RCU waiters; here I've added a commit log and
unified the RCU changes into one, and uprev'd it to match mainline RCU.
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
kernel/rcu/tree.c | 22 +++++++++++-----------
kernel/rcu/tree.h | 13 +++++++------
kernel/rcu/tree_plugin.h | 26 +++++++++++++-------------
3 files changed, 31 insertions(+), 30 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 8e8c6ec..9fd5b62 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1634,7 +1634,7 @@ static void rcu_gp_kthread_wake(struct rcu_state *rsp)
!READ_ONCE(rsp->gp_flags) ||
!rsp->gp_kthread)
return;
- wake_up(&rsp->gp_wq);
+ swake_up(&rsp->gp_wq);
}
/*
@@ -2009,7 +2009,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
int nocb = 0;
struct rcu_data *rdp;
struct rcu_node *rnp = rcu_get_root(rsp);
- wait_queue_head_t *sq;
+ struct swait_queue_head *sq;
WRITE_ONCE(rsp->gp_activity, jiffies);
raw_spin_lock_irq_rcu_node(rnp);
@@ -2094,7 +2094,7 @@ static int __noreturn rcu_gp_kthread(void *arg)
READ_ONCE(rsp->gpnum),
TPS("reqwait"));
rsp->gp_state = RCU_GP_WAIT_GPS;
- wait_event_interruptible(rsp->gp_wq,
+ swait_event_interruptible(rsp->gp_wq,
READ_ONCE(rsp->gp_flags) &
RCU_GP_FLAG_INIT);
rsp->gp_state = RCU_GP_DONE_GPS;
@@ -2124,7 +2124,7 @@ static int __noreturn rcu_gp_kthread(void *arg)
READ_ONCE(rsp->gpnum),
TPS("fqswait"));
rsp->gp_state = RCU_GP_WAIT_FQS;
- ret = wait_event_interruptible_timeout(rsp->gp_wq,
+ ret = swait_event_interruptible_timeout(rsp->gp_wq,
rcu_gp_fqs_check_wake(rsp, &gf), j);
rsp->gp_state = RCU_GP_DOING_FQS;
/* Locking provides needed memory barriers. */
@@ -2248,7 +2248,7 @@ static void rcu_report_qs_rsp(struct rcu_state *rsp, unsigned long flags)
WARN_ON_ONCE(!rcu_gp_in_progress(rsp));
WRITE_ONCE(rsp->gp_flags, READ_ONCE(rsp->gp_flags) | RCU_GP_FLAG_FQS);
raw_spin_unlock_irqrestore(&rcu_get_root(rsp)->lock, flags);
- rcu_gp_kthread_wake(rsp);
+ swake_up(&rsp->gp_wq); /* Memory barrier implied by swake_up() path. */
}
/*
@@ -2902,7 +2902,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
}
WRITE_ONCE(rsp->gp_flags, READ_ONCE(rsp->gp_flags) | RCU_GP_FLAG_FQS);
raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
- rcu_gp_kthread_wake(rsp);
+ swake_up(&rsp->gp_wq); /* Memory barrier implied by swake_up() path. */
}
/*
@@ -3531,7 +3531,7 @@ static void __rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
raw_spin_unlock_irqrestore(&rnp->lock, flags);
if (wake) {
smp_mb(); /* EGP done before wake_up(). */
- wake_up(&rsp->expedited_wq);
+ swake_up(&rsp->expedited_wq);
}
break;
}
@@ -3782,7 +3782,7 @@ static void synchronize_sched_expedited_wait(struct rcu_state *rsp)
jiffies_start = jiffies;
for (;;) {
- ret = wait_event_interruptible_timeout(
+ ret = swait_event_timeout(
rsp->expedited_wq,
sync_rcu_preempt_exp_done(rnp_root),
jiffies_stall);
@@ -3790,7 +3790,7 @@ static void synchronize_sched_expedited_wait(struct rcu_state *rsp)
return;
if (ret < 0) {
/* Hit a signal, disable CPU stall warnings. */
- wait_event(rsp->expedited_wq,
+ swait_event(rsp->expedited_wq,
sync_rcu_preempt_exp_done(rnp_root));
return;
}
@@ -4484,8 +4484,8 @@ static void __init rcu_init_one(struct rcu_state *rsp)
}
}
- init_waitqueue_head(&rsp->gp_wq);
- init_waitqueue_head(&rsp->expedited_wq);
+ init_swait_queue_head(&rsp->gp_wq);
+ init_swait_queue_head(&rsp->expedited_wq);
rnp = rsp->level[rcu_num_lvls - 1];
for_each_possible_cpu(i) {
while (i > rnp->grphi)
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 10dedfb..bbd235d 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -27,6 +27,7 @@
#include <linux/threads.h>
#include <linux/cpumask.h>
#include <linux/seqlock.h>
+#include <linux/swait.h>
#include <linux/stop_machine.h>
/*
@@ -243,7 +244,7 @@ struct rcu_node {
/* Refused to boost: not sure why, though. */
/* This can happen due to race conditions. */
#ifdef CONFIG_RCU_NOCB_CPU
- wait_queue_head_t nocb_gp_wq[2];
+ struct swait_queue_head nocb_gp_wq[2];
/* Place for rcu_nocb_kthread() to wait GP. */
#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
int need_future_gp[2];
@@ -399,7 +400,7 @@ struct rcu_data {
atomic_long_t nocb_q_count_lazy; /* invocation (all stages). */
struct rcu_head *nocb_follower_head; /* CBs ready to invoke. */
struct rcu_head **nocb_follower_tail;
- wait_queue_head_t nocb_wq; /* For nocb kthreads to sleep on. */
+ struct swait_queue_head nocb_wq; /* For nocb kthreads to sleep on. */
struct task_struct *nocb_kthread;
int nocb_defer_wakeup; /* Defer wakeup of nocb_kthread. */
@@ -478,7 +479,7 @@ struct rcu_state {
unsigned long gpnum; /* Current gp number. */
unsigned long completed; /* # of last completed gp. */
struct task_struct *gp_kthread; /* Task for grace periods. */
- wait_queue_head_t gp_wq; /* Where GP task waits. */
+ struct swait_queue_head gp_wq; /* Where GP task waits. */
short gp_flags; /* Commands for GP task. */
short gp_state; /* GP kthread sleep state. */
@@ -506,7 +507,7 @@ struct rcu_state {
unsigned long expedited_sequence; /* Take a ticket. */
atomic_long_t expedited_normal; /* # fallbacks to normal. */
atomic_t expedited_need_qs; /* # CPUs left to check in. */
- wait_queue_head_t expedited_wq; /* Wait for check-ins. */
+ struct swait_queue_head expedited_wq; /* Wait for check-ins. */
int ncpus_snap; /* # CPUs seen last time. */
unsigned long jiffies_force_qs; /* Time at which to invoke */
@@ -621,8 +622,8 @@ static void zero_cpu_stall_ticks(struct rcu_data *rdp);
static void increment_cpu_stall_ticks(void);
static bool rcu_nocb_cpu_needs_barrier(struct rcu_state *rsp, int cpu);
static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq);
-static wait_queue_head_t *rcu_nocb_gp_get(struct rcu_node *rnp);
-static void rcu_nocb_gp_cleanup(wait_queue_head_t *sq);
+static struct swait_queue_head *rcu_nocb_gp_get(struct rcu_node *rnp);
+static void rcu_nocb_gp_cleanup(struct swait_queue_head *sq);
static void rcu_init_one_nocb(struct rcu_node *rnp);
static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
bool lazy, unsigned long flags);
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 631aff6..080bd20 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1811,9 +1811,9 @@ early_param("rcu_nocb_poll", parse_rcu_nocb_poll);
* Wake up any no-CBs CPUs' kthreads that were waiting on the just-ended
* grace period.
*/
-static void rcu_nocb_gp_cleanup(wait_queue_head_t *sq)
+static void rcu_nocb_gp_cleanup(struct swait_queue_head *sq)
{
- wake_up_all(sq);
+ swake_up_all(sq);
}
/*
@@ -1829,15 +1829,15 @@ static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq)
rnp->need_future_gp[(rnp->completed + 1) & 0x1] += nrq;
}
-static wait_queue_head_t *rcu_nocb_gp_get(struct rcu_node *rnp)
+static struct swait_queue_head *rcu_nocb_gp_get(struct rcu_node *rnp)
{
return &rnp->nocb_gp_wq[rnp->completed & 0x1];
}
static void rcu_init_one_nocb(struct rcu_node *rnp)
{
- init_waitqueue_head(&rnp->nocb_gp_wq[0]);
- init_waitqueue_head(&rnp->nocb_gp_wq[1]);
+ init_swait_queue_head(&rnp->nocb_gp_wq[0]);
+ init_swait_queue_head(&rnp->nocb_gp_wq[1]);
}
#ifndef CONFIG_RCU_NOCB_CPU_ALL
@@ -1862,7 +1862,7 @@ static void wake_nocb_leader(struct rcu_data *rdp, bool force)
if (READ_ONCE(rdp_leader->nocb_leader_sleep) || force) {
/* Prior smp_mb__after_atomic() orders against prior enqueue. */
WRITE_ONCE(rdp_leader->nocb_leader_sleep, false);
- wake_up(&rdp_leader->nocb_wq);
+ swake_up(&rdp_leader->nocb_wq);
}
}
@@ -2074,7 +2074,7 @@ static void rcu_nocb_wait_gp(struct rcu_data *rdp)
*/
trace_rcu_future_gp(rnp, rdp, c, TPS("StartWait"));
for (;;) {
- wait_event_interruptible(
+ swait_event_interruptible(
rnp->nocb_gp_wq[c & 0x1],
(d = ULONG_CMP_GE(READ_ONCE(rnp->completed), c)));
if (likely(d))
@@ -2102,7 +2102,7 @@ wait_again:
/* Wait for callbacks to appear. */
if (!rcu_nocb_poll) {
trace_rcu_nocb_wake(my_rdp->rsp->name, my_rdp->cpu, "Sleep");
- wait_event_interruptible(my_rdp->nocb_wq,
+ swait_event_interruptible(my_rdp->nocb_wq,
!READ_ONCE(my_rdp->nocb_leader_sleep));
/* Memory barrier handled by smp_mb() calls below and repoll. */
} else if (firsttime) {
@@ -2177,7 +2177,7 @@ wait_again:
* List was empty, wake up the follower.
* Memory barriers supplied by atomic_long_add().
*/
- wake_up(&rdp->nocb_wq);
+ swake_up(&rdp->nocb_wq);
}
}
@@ -2198,7 +2198,7 @@ static void nocb_follower_wait(struct rcu_data *rdp)
if (!rcu_nocb_poll) {
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
"FollowerSleep");
- wait_event_interruptible(rdp->nocb_wq,
+ swait_event_interruptible(rdp->nocb_wq,
READ_ONCE(rdp->nocb_follower_head));
} else if (firsttime) {
/* Don't drown trace log with "Poll"! */
@@ -2357,7 +2357,7 @@ void __init rcu_init_nohz(void)
static void __init rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp)
{
rdp->nocb_tail = &rdp->nocb_head;
- init_waitqueue_head(&rdp->nocb_wq);
+ init_swait_queue_head(&rdp->nocb_wq);
rdp->nocb_follower_tail = &rdp->nocb_follower_head;
}
@@ -2507,7 +2507,7 @@ static bool rcu_nocb_cpu_needs_barrier(struct rcu_state *rsp, int cpu)
return false;
}
-static void rcu_nocb_gp_cleanup(wait_queue_head_t *sq)
+static void rcu_nocb_gp_cleanup(struct swait_queue_head *sq)
{
}
@@ -2515,7 +2515,7 @@ static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq)
{
}
-static wait_queue_head_t *rcu_nocb_gp_get(struct rcu_node *rnp)
+static struct swait_queue_head *rcu_nocb_gp_get(struct rcu_node *rnp)
{
return NULL;
}
--
2.5.0
^ permalink raw reply related [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-26 1:35 ` Paul E. McKenney
@ 2016-03-04 5:30 ` Ross Green
2016-03-04 15:18 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-03-04 5:30 UTC (permalink / raw)
To: Paul McKenney
Cc: Mathieu Desnoyers, John Stultz, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 15594 bytes --]
On Fri, Feb 26, 2016 at 12:35 PM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> This time actually attaching Daniel's patches...
>
> Thanx, Paul
>
> On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
>> On Thu, Feb 25, 2016 at 04:13:11PM +1100, Ross Green wrote:
>> > On Wed, Feb 24, 2016 at 8:28 AM, Ross Green <rgkernel@gmail.com> wrote:
>> > > On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney
>> > > <paulmck@linux.vnet.ibm.com> wrote:
>>
>> [ . . . ]
>>
>> > >> Still working on getting decent traces...
>>
>> And I might have succeeded, see below.
>>
>> > >>
>> > >> Thanx, Paul
>> > >>
>> > >
>> > > G'day all,
>> > >
>> > > Here is another dmesg output for 4.5-rc5 showing another rcu_preempt stall.
>> > > This one appeared after only a day of running. CONFIG_DEBUG_TIMING is
>> > > turned on, but can't see any output that shows from this.
>> > >
>> > > Again testing as before,
>> > >
>> > > Boot, run a series of small benchmarks, then just let the system be
>> > > and idle away.
>> > >
>> > > I notice in the stack trace there is mention of hrtimer_run_queues and
>> > > hrtimer_interrupt.
>> > >
>> > > Anyway, leave this for a few more eyes to look at.
>> > >
>> > > Open to any other suggestions of things to test.
>> > >
>> > > Regards,
>> > >
>> > > Ross Green
>> >
>> >
>> > G'day Paul,
>> >
>> > I left the pandaboard running and captured another stall.
>> >
>> > the attachment is the dmesg output.
>> >
>> > Again there is no apparent output from any CONFIG_DEBUG_TIMING so I
>> > assume there is nothing happening there.
>>
>> I agree, looks like this is not due to time skew.
>>
>> > I just saw the updates for 4.6 RCU code.
>> > Is the patch in [PATCH tip/core/rcu 04/13] valid here?
>>
>> I doubt that it will help, but you never know.
>>
>> > do you want me try the new patch set with this configuration?
>>
>> Even better would be to try Daniel Wagner's swait patchset. I have
>> attached them in UNIX mbox format, or you can get them from the
>> -tip tree.
>>
>> And I -finally- got some tracing that -might- be useful. The dmesg, all
>> 67MB of it, is here:
>>
>> http://www.rdrop.com/~paulmck/submission/console.2016.02.23a.log
>>
>> This failure mode is less likely to happen, and looks a bit different
>> than the ones that I was seeing before enabling tracing. Then, an
>> additional wakeup would actually wake the task up. In contrast, with
>> tracing enabled, the RCU grace-period kthread goes into "teenager mode",
>> refusing to wake up despite repeated attempts. However, this might
>> be a side-effect of the ftrace dump.
>>
>> On line 525,132, we see that the rcu_preempt grace-period kthread has
>> been starved for 1,188,154 jiffies, or about 20 minutes. This seems
>> unlikely... The kthread is waiting for no more than a three-jiffy
>> timeout ("RCU_GP_WAIT_FQS(3)") and is in TASK_INTERRUPTIBLE state
>> ("0x1"). I have replaced the old event-waiting with a straight
>> schedule_timeout_interruptible() as an (ineffective) desperation move.
>>
>> But this dmesg also contains a trace with sched_waking and sched_wakeup
>> enabled. Here are the entries corresponding to the grace-period kthread
>> in reverse time order:
>>
>> [ 1205.567414] rcu_pree-7 5d..2 1175375682us : sched_waking: comm=rcub/9 pid=34 prio=97 target_cpu=005
>> [ 1205.567414] rcu_pree-7 5dN.3 1175375685us : sched_wakeup: comm=rcub/9 pid=34 prio=97 target_cpu=005
>>
>> This is the last sched_wakeup trace entry, 29 seconds before
>> the end of the trace. After this, we see a sched_waking event
>> about every three milliseconds.
>>
>> [ 1205.567414] rcu_pree-7 4d..2 1175381643us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175384644us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175387662us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175390643us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175393644us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175396651us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175399665us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175402646us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175405647us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175408650us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175411669us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175414659us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175417654us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175420661us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175423679us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175426657us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175429660us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175432660us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175435681us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175460700us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175464687us : sched_waking: comm=rcub/14 pid=89 prio=97 target_cpu=014
>> [ 1205.567414] rcu_pree-7 4d..2 1175467728us : sched_waking: comm=rcub/14 pid=89 prio=97 target_cpu=014
>> [ 1205.567414] rcu_pree-7 4d..2 1175477679us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175477696us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175493687us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175506686us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175516696us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175516714us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175529700us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175536704us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175539737us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175542707us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175545704us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175548709us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175551740us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175554709us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175566714us : sched_waking: comm=rcub/7 pid=11 prio=97 target_cpu=000
>> [ 1205.567414] rcu_pree-7 4d..2 1175566732us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175569724us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175572719us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175575750us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175578717us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175581718us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175584721us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175587748us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175590728us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175593724us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175596724us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175599761us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175602726us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175605728us : sched_waking: comm=rcub/10 pid=45 prio=97 target_cpu=006
>> [ 1205.567414] rcu_pree-7 4d..2 1175612737us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175615753us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175618737us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175621736us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175624738us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175627757us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175630741us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175633741us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175636745us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175639765us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175642744us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175645745us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175648750us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175651771us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175654751us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175657750us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175660752us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175663779us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175666752us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175669753us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175672757us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175675782us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175678756us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175681761us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175684761us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175687778us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175690762us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175693763us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>> [ 1205.567414] rcu_pree-7 4d..2 1175696766us : sched_waking: comm=rcub/12 pid=67 prio=97 target_cpu=010
>>
>> We might have lost some events, but losing that many in that pattern
>> seems unlikely.
>>
>> OK, so what wakeup path omits the sched_wakeup event?
>>
>> The sched_waking event looks to occur once in try_to_wake_up() and
>> once in try_to_wake_up_local(). Starting with try_to_wake_up():
>>
>> o If the task is ->on_rq, ttwu_remote() is invoked:
>>
>> o This acquires the runqueue lock, then if
>> task_on_rq_queued() invokes ttwu_do_wakeup(). This
>> unconditionally does sched_wakeup, so we didn't go that
>> way. (And this path skips the bulk of try_to_wake_up()
>> on return.)
>>
>> o Otherwise, we release the runqueu lock and returns zero.
>>
>> o There is some ordering checking, runqueue selection, and then
>> p->state is set to TASK_WAKING. And we apparently are not getting
>> here, either. But I don't see any other way out.
>>
>> Ignoring this for the moment...
>>
>> We eventually reach to the call to ttwu_queue().
>>
>> o Here the TTWU_QUEUE path seems to avoid doing a
>> sched_wakeup event -- and since we are trying to wake
>> CPU 0 from CPU 4, so they don't share cache (x86).
>>
>> o This invokes ttwu_queue_remote(), which sends an IPI
>> unless polling is in effect. I would need to enable
>> trace_sched_wake_idle_without_ipi() to see whether or
>> not the IPI was actually sent.
>>
>> If the target CPU was offline, we should have seen the
>> cpu_is_offline() WARN_ON(). I suppose that the CPU might
>> go offline between the check and the ->send_IPI_mask(),
>> but only once. And we are trying to wakeup on CPU 0
>> quite a few times.
>>
>> Any thoughts on what to look for?
>>
>> Next, try_to_wake_up_local():
>>
>> o After doing several checks, it does the sched_waking event.
>>
>> o If the task is already queued, it calls ttwu_activate().
>>
>> o It then invokes ttwu_do_wakeup(), which unconditionally
>> does the sched_wakeup() event.
>>
>> So this path looks unlikely, even ignoring the fact that
>> the waking CPU in the traces above is always different than
>> the CPU to be awakened on.
>>
>> Any thoughts?
>>
>> Thanx, Paul
G'day,
Here is a series of rcu_preempt stall events(5) from linux-4.5-rc6 release.
Again some testing procedure. boot, run series of brief benchmarks and
then leave idle.
The first stall event appeared quite quickly - within hours, the rest
at what appears to be random intervals after that.
I thought I might give Daniels patch set a try and see how that goes!
Regards,
Ross Green
[-- Attachment #2: dmesg-4.5-rc6 --]
[-- Type: application/octet-stream, Size: 59680 bytes --]
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.5.0-rc6-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #1 SMP PREEMPT Mon Feb 29 16:32:29 AEDT 2016
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c0966380, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7ab000 s17984 r8192 d22976 u49152
[ 0.000000] pcpu-alloc: s17984 r8192 d22976 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1027232K/1046528K available (6883K kernel code, 252K rwdata, 2156K rodata, 300K init, 297K bss, 19296K reserved, 0K cma-reserved, 260096K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08dc0d4 (9041 kB)
.init : 0xc08dd000 - 0xc0928000 ( 300 kB)
.data : 0xc0928000 - 0xc0967380 ( 253 kB)
.bss : 0xc096a000 - 0xc09b47b8 ( 298 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000854] Console: colour dummy device 80x30
[ 0.000885] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089202] pid_max: default: 32768 minimum: 301
[ 0.089263] Security Framework initialized
[ 0.089324] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089324] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089965] CPU: Testing write buffer coherency: ok
[ 0.090179] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090240] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.209197] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.209259] Brought up 2 CPUs
[ 0.209289] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.209289] CPU: All CPU(s) started in SVC mode.
[ 0.210113] devtmpfs: initialized
[ 0.227111] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.227630] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.227783] xor: measuring software checksum speed
[ 0.319183] arm4regs : 1006.000 MB/sec
[ 0.419158] 8regs : 804.400 MB/sec
[ 0.519165] 32regs : 760.800 MB/sec
[ 0.519195] xor: using function: arm4regs (1006.000 MB/sec)
[ 0.519409] pinctrl core: initialized pinctrl subsystem
[ 0.521331] NET: Registered protocol family 16
[ 0.522247] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.523986] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.525512] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.631225] OMAP GPIO hardware version 0.1
[ 0.636474] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.636505] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.637023] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637390] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.637786] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.649658] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.649963] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.655975] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.655975] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.656616] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.656829] OMAP DMA hardware revision 0.0
[ 0.899200] raid6: int32x1 gen() 103 MB/s
[ 1.069213] raid6: int32x1 xor() 85 MB/s
[ 1.239257] raid6: int32x2 gen() 134 MB/s
[ 1.409271] raid6: int32x2 xor() 97 MB/s
[ 1.579254] raid6: int32x4 gen() 145 MB/s
[ 1.749359] raid6: int32x4 xor() 97 MB/s
[ 1.919250] raid6: int32x8 gen() 160 MB/s
[ 2.089294] raid6: int32x8 xor() 94 MB/s
[ 2.089294] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.089324] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.089324] raid6: using intx1 recovery algorithm
[ 2.095397] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.169311] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.173583] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.173675] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.175781] SCSI subsystem initialized
[ 2.176055] usbcore: registered new interface driver usbfs
[ 2.176208] usbcore: registered new interface driver hub
[ 2.176330] usbcore: registered new device driver usb
[ 2.177307] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.177337] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.177398] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.177429] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.177703] Linux video capture interface: v2.00
[ 2.178466] Advanced Linux Sound Architecture Driver Initialized.
[ 2.179931] clocksource: Switched to clocksource 32k_counter
[ 2.194244] NET: Registered protocol family 2
[ 2.194793] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.194885] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.195037] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.195129] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.195159] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.195373] NET: Registered protocol family 1
[ 2.195770] RPC: Registered named UNIX socket transport module.
[ 2.195770] RPC: Registered udp transport module.
[ 2.195770] RPC: Registered tcp transport module.
[ 2.195800] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.197814] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.199920] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.222076] NFS: Registering the id_resolver key type
[ 2.222137] Key type id_resolver registered
[ 2.222137] Key type id_legacy registered
[ 2.222167] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.222198] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.223388] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.223663] fuse init (API version 7.24)
[ 2.226318] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.226409] bounce: pool size: 64 pages
[ 2.226409] io scheduler noop registered
[ 2.226440] io scheduler deadline registered
[ 2.226470] io scheduler cfq registered (default)
[ 2.227386] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.227630] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.230682] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.232238] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.232482] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.233001] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.233459] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.130554] console [ttyO2] enabled
[ 3.134674] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.145416] [drm] Initialized drm 1.1.0 20060810
[ 3.151916] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.159301] OMAP DSS rev 4.0
[ 3.162475] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.170806] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.179351] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.231170] loop: module loaded
[ 3.237304] usbcore: registered new interface driver smsc95xx
[ 3.243469] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.250305] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.269958] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.275634] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.283721] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.309936] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.316314] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.323455] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.331024] usb usb1: Product: EHCI Host Controller
[ 3.336120] usb usb1: Manufacturer: Linux 4.5.0-rc6-panda ehci_hcd
[ 3.342590] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.348175] hub 1-0:1.0: USB hub found
[ 3.352142] hub 1-0:1.0: 3 ports detected
[ 3.357055] usbcore: registered new interface driver cdc_wdm
[ 3.363128] usbcore: registered new interface driver usb-storage
[ 3.369873] i2c /dev entries driver
[ 3.373657] usbcore: registered new interface driver uvcvideo
[ 3.379669] USB Video Class driver (1.1.1)
[ 3.385162] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.392730] device-mapper: uevent: version 1.0.3
[ 3.397888] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.471008] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.476867] usbcore: registered new interface driver usbhid
[ 3.482788] usbhid: USB HID core driver
[ 3.487274] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.496582] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.507568] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.515533] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.523010] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.528717] Initializing XFRM netlink socket
[ 3.533294] NET: Registered protocol family 17
[ 3.538238] Key type dns_resolver registered
[ 3.542938] twl: not initialized
[ 3.546356] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.554931] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.563446] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.571960] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.580444] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.588928] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.597412] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.605926] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.613494] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.619232] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.626617] omap2_set_init_voltage: unable to set vdd_core
[ 3.632446] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.639739] omap2_set_init_voltage: unable to set vdd_iva
[ 3.646331] Power Management for TI OMAP4+ devices.
[ 3.651519] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.658782] ThumbEE CPU extension supported.
[ 3.663360] Registering SWP/SWPB emulation handler
[ 3.663360] SmartReflex Class3 initialized
[ 3.672851] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.682739] Btrfs loaded
[ 3.687988] dmm 4e000000.dmm: initialized all PAT entries
[ 3.707946] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.730682] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.737121] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.745941] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.766113] twl6040 0-004b: clk32k is not handled
[ 3.772216] twl6040 0-004b: Failed to read revision register: -121
[ 3.773742] twl6040: probe of 0-004b failed with error -121
[ 3.784912] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.791717] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.798736] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.805480] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.854156] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.861358] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.869750] hub 1-1:1.0: USB hub found
[ 3.873870] hub 1-1:1.0: 5 ports detected
[ 3.969940] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.970275] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.986785] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-02-29 08:17:36 UTC (1456733856)
[ 3.990142] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.001403] mmc1: new SDIO card at address 0001
[ 4.010467] sr_init: No PMIC hook to init smartreflex
[ 4.016113] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.024627] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.024627] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 4.024932] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 4.047973] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.047973] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 4.048217] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 4.056518] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.059967] mmc0: new high speed SDHC card at address e624
[ 4.080291] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.090637] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 4.098693] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 4.098693] vwl1271: disabling
[ 4.111175] VDAC: disabling
[ 4.114624] VANA: disabling
[ 4.118041] VUSB: disabling
[ 4.119720] mmcblk0: p1 p2 p3 p4
[ 4.121215] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 4.121582] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 4.140167] ALSA device list:
[ 4.143310] No soundcards found.
[ 4.158325] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.167449] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.209960] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.209960] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.225738] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.242431] devtmpfs: mounted
[ 4.242431] Freeing unused kernel memory: 300K (c08dd000 - c0928000)
[ 4.365356] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.372680] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.383239] smsc95xx v1.0.4
[ 4.509490] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, 7a:45:a4:ce:63:b5
[ 4.521820] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 4.529998] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 4.581573] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.635467] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.780944] random: dd urandom read with 28 bits of entropy available
[ 8.674133] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 18.826232] Bluetooth: Core ver 2.21
[ 18.831207] NET: Registered protocol family 31
[ 18.840423] Bluetooth: HCI device and connection manager initialized
[ 18.847229] Bluetooth: HCI socket layer initialized
[ 18.852691] Bluetooth: L2CAP socket layer initialized
[ 18.858123] Bluetooth: SCO socket layer initialized
[ 26.559692] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 26.571075] NFSD: starting 90-second grace period (net c0960880)
[ 44.431243] random: nonblocking pool is initialized
[ 44.914398] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 44.922271] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 45.060455] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 45.062683] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 45.474121] wlcore: loaded
[ 57.863952] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 61.414764] wlan0: authenticate with 90:f6:52:81:ee:70
[ 61.428710] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 61.445251] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 61.461883] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 61.478302] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 64.970977] wlan0: authenticate with 90:f6:52:81:ee:70
[ 65.009674] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 65.018035] wlan0: authenticated
[ 65.051330] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 65.062347] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 65.079101] wlan0: associated
[ 65.143035] wlcore: Association completed.
[ 99.092468] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[ 146.722442] NFSD: Unable to end grace period: -110
[ 3987.928649] INFO: rcu_preempt self-detected stall on CPU
[ 3987.929351] 1-...: (1 ticks this GP) idle=263/1/0 softirq=28665/28665 fqs=0
[ 3987.929351] (t=8609 jiffies g=12469 c=12468 q=157)
[ 3987.947113] rcu_preempt kthread starved for 8609 jiffies! g12469 c12468 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[ 3987.950531] INFO: rcu_preempt self-detected stall on CPU
[ 3987.950561] 0-...: (1 ticks this GP) idle=0db/1/0 softirq=34961/34961 fqs=0
[ 3987.950561] (t=8609 jiffies g=12469 c=12468 q=157)
[ 3987.950561] rcu_preempt kthread starved for 8609 jiffies! g12469 c12468 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[ 3987.950592] rcu_preempt S c06bacb0 0 7 2 0x00000000
[ 3987.950592] Backtrace:
[ 3987.950592] [<c06baae4>] (__schedule) from [<c06bb040>] (schedule+0x54/0xc4)
[ 3987.950592] r10:c092a518 r9:00000001 r8:00057ef8 r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[ 3987.950653] r4:ef096000
[ 3987.950653] [<c06bafec>] (schedule) from [<c06bde40>] (schedule_timeout+0x118/0x1ac)
[ 3987.950683] r5:ef7b73c0 r4:ef7b73c0
[ 3987.950683] [<c06bdd28>] (schedule_timeout) from [<c008617c>] (rcu_gp_kthread+0x64c/0x99c)
[ 3987.950714] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[ 3987.950744] [<c0085b30>] (rcu_gp_kthread) from [<c00505c4>] (kthread+0xe4/0xfc)
[ 3987.950744] r7:c0085b30
[ 3987.950744] [<c00504e0>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[ 3987.950744] r7:00000000 r6:00000000 r5:c00504e0 r4:ef0407c0
[ 3987.950744] Task dump for CPU 0:
[ 3987.950805] swapper/0 R running 0 0 0 0x00000000
[ 3987.950805] Backtrace:
[ 3987.950805] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[ 3987.950836] r7:c092a518 r6:80010193 r5:00000000 r4:c092d180
[ 3987.950866] [<c0014164>] (show_stack) from [<c005acf8>] (sched_show_task+0xbc/0x110)
[ 3987.950866] [<c005ac3c>] (sched_show_task) from [<c005d188>] (dump_cpu_task+0x40/0x48)
[ 3987.950897] r5:c093a080 r4:00000000
[ 3987.950897] [<c005d148>] (dump_cpu_task) from [<c0082954>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[ 3987.950897] r5:c093a080 r4:00000001
[ 3987.950927] [<c00828b8>] (rcu_dump_cpu_stacks) from [<c0086db8>] (rcu_check_callbacks+0x500/0x8e4)
[ 3987.950958] r9:c093a080 r8:c092a624 r7:2ee88000 r6:c0927340 r5:c093a080 r4:ef7af340
[ 3987.950958] [<c00868b8>] (rcu_check_callbacks) from [<c0089fe8>] (update_process_times+0x40/0x6c)
[ 3987.950988] r10:c009b29c r9:00000001 r8:ef7abc4c r7:000003a0 r6:84193799 r5:00000000
[ 3987.950988] r4:c092d180
[ 3987.951019] [<c0089fa8>] (update_process_times) from [<c009b298>] (tick_sched_handle+0x50/0x54)
[ 3987.951019] r5:c0929f10 r4:ef7abe40
[ 3987.951049] [<c009b248>] (tick_sched_handle) from [<c009b2ec>] (tick_sched_timer+0x50/0x94)
[ 3987.951049] [<c009b29c>] (tick_sched_timer) from [<c008aa2c>] (__hrtimer_run_queues+0x110/0x1a4)
[ 3987.951049] r7:00000000 r6:ef7abc40 r5:ef7abe40 r4:ef7abc00
[ 3987.951080] [<c008a91c>] (__hrtimer_run_queues) from [<c008b0c0>] (hrtimer_interrupt+0xac/0x1fc)
[ 3987.951080] r10:ef7abc78 r9:ef7abc98 r8:ef7abc14 r7:ef7abcb8 r6:ffffffff r5:00000003
[ 3987.951110] r4:ef7abc00
[ 3987.951110] [<c008b014>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[ 3987.951141] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a4 r5:ef005cc0
[ 3987.951141] r4:00000001
[ 3987.951171] [<c00171d4>] (twd_handler) from [<c007d0bc>] (handle_percpu_devid_irq+0x74/0x8c)
[ 3987.951171] r5:ef005cc0 r4:ef7b1780
[ 3987.951202] [<c007d048>] (handle_percpu_devid_irq) from [<c0078b44>] (generic_handle_irq+0x2c/0x3c)
[ 3987.951202] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092441c
[ 3987.951232] [<c0078b18>] (generic_handle_irq) from [<c0078e3c>] (__handle_domain_irq+0x64/0xbc)
[ 3987.951232] [<c0078dd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[ 3987.951263] r9:fa241100 r8:fa240100 r7:c0929f10 r6:fa24010c r5:c092a7a4 r4:c0948008
[ 3987.951263] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[ 3987.951263] Exception stack(0xc0929f10 to 0xc0929f58)
[ 3987.951293] 9f00: 00000000 ef7ab390 fe600000 00000000
[ 3987.951293] 9f20: c0928000 c092a49c c092336c c0929f80 c0967125 c0967125 c092a4ec c0929f6c
[ 3987.951293] 9f40: c0929f4c c0929f60 c0028ab4 c0010ca0 60010113 ffffffff
[ 3987.951324] r9:c0967125 r8:c0967125 r7:c0929f44 r6:ffffffff r5:60010113 r4:c0010ca0
[ 3987.951354] [<c0010c78>] (arch_cpu_idle) from [<c006f7b0>] (default_idle_call+0x28/0x34)
[ 3987.951354] [<c006f788>] (default_idle_call) from [<c006f8d4>] (cpu_startup_entry+0x118/0x188)
[ 3987.951385] [<c006f7bc>] (cpu_startup_entry) from [<c06ba414>] (rest_init+0x90/0x94)
[ 3987.951385] r7:ffffffff r4:00000002
[ 3987.951416] [<c06ba384>] (rest_init) from [<c08ddd0c>] (start_kernel+0x390/0x39c)
[ 3987.951416] r5:c096a000 r4:00000000
[ 3987.951446] [<c08dd97c>] (start_kernel) from [<8000807c>] (0x8000807c)
[ 3987.951446] Task dump for CPU 1:
[ 3987.951446] swapper/1 R running 0 0 1 0x00000000
[ 3987.951446] Backtrace:
[ 3987.951477] Backtrace aborted due to bad frame pointer <ef09ff9c>
[ 3988.404846] rcu_preempt S c06bacb0 0 7 2 0x00000000
[ 3988.414642] Backtrace:
[ 3988.414642] [<c06baae4>] (__schedule) from [<c06bb040>] (schedule+0x54/0xc4)
[ 3988.414642] r10:c092a518 r9:00000001 r8:00057ef8 r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[ 3988.434387] r4:ef096000
[ 3988.435150] [<c06bafec>] (schedule) from [<c06bde40>] (schedule_timeout+0x118/0x1ac)
[ 3988.444641] r5:ef7b73c0 r4:ef7b73c0
[ 3988.449066] [<c06bdd28>] (schedule_timeout) from [<c008617c>] (rcu_gp_kthread+0x64c/0x99c)
[ 3988.449066] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[ 3988.464935] [<c0085b30>] (rcu_gp_kthread) from [<c00505c4>] (kthread+0xe4/0xfc)
[ 3988.467041] r7:c0085b30
[ 3988.474639] [<c00504e0>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[ 3988.482238] r7:00000000 r6:00000000 r5:c00504e0 r4:ef0407c0
[ 3988.489013] Task dump for CPU 1:
[ 3988.489013] swapper/1 R running 0 0 1 0x00000000
[ 3988.489013] Backtrace:
[ 3988.501770] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[ 3988.501770] r7:c092a518 r6:800c0193 r5:00000001 r4:ef077480
[ 3988.501770] [<c0014164>] (show_stack) from [<c005acf8>] (sched_show_task+0xbc/0x110)
[ 3988.523986] [<c005ac3c>] (sched_show_task) from [<c005d188>] (dump_cpu_task+0x40/0x48)
[ 3988.524658] r5:c093a080 r4:00000001
[ 3988.536163] [<c005d148>] (dump_cpu_task) from [<c0082954>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[ 3988.544647] r5:c093a080 r4:00000002
[ 3988.548706] [<c00828b8>] (rcu_dump_cpu_stacks) from [<c0086db8>] (rcu_check_callbacks+0x500/0x8e4)
[ 3988.548706] r9:c093a080 r8:c092a624 r7:2ee94000 r6:c0927340 r5:c093a080 r4:ef7bb340
[ 3988.560577] [<c00868b8>] (rcu_check_callbacks) from [<c0089fe8>] (update_process_times+0x40/0x6c)
[ 3988.575805] r10:c009b29c r9:00000001 r8:ef7b7c4c r7:000003a0 r6:82cadf22 r5:00000000
[ 3988.575805] r4:ef077480
[ 3988.575805] [<c0089fa8>] (update_process_times) from [<c009b298>] (tick_sched_handle+0x50/0x54)
[ 3988.596008] r5:ef09ff58 r4:ef7b7e40
[ 3988.596008] [<c009b248>] (tick_sched_handle) from [<c009b2ec>] (tick_sched_timer+0x50/0x94)
[ 3988.604644] [<c009b29c>] (tick_sched_timer) from [<c008aa2c>] (__hrtimer_run_queues+0x110/0x1a4)
[ 3988.617126] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[ 3988.619598] [<c008a91c>] (__hrtimer_run_queues) from [<c008b0c0>] (hrtimer_interrupt+0xac/0x1fc)
[ 3988.627105] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[ 3988.634643] r4:ef7b7c00
[ 3988.634643] [<c008b014>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[ 3988.634643] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a4 r5:ef005cc0
[ 3988.654663] r4:00000001
[ 3988.654663] [<c00171d4>] (twd_handler) from [<c007d0bc>] (handle_percpu_devid_irq+0x74/0x8c)
[ 3988.664642] r5:ef005cc0 r4:ef7bd780
[ 3988.676361] [<c007d048>] (handle_percpu_devid_irq) from [<c0078b44>] (generic_handle_irq+0x2c/0x3c)
[ 3988.676361] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092441c
[ 3988.676361] [<c0078b18>] (generic_handle_irq) from [<c0078e3c>] (__handle_domain_irq+0x64/0xbc)
[ 3988.703369] [<c0078dd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[ 3988.709472] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a4 r4:c0948008
[ 3988.718139] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[ 3988.724639] Exception stack(0xef09ff58 to 0xef09ffa0)
[ 3988.733703] ff40: 00000000 ef7b7390
[ 3988.736511] ff60: fe600000 00000000 ef09e000 c092a49c c092336c ef09ffc8 c0967125 c0967125
[ 3988.751007] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028ab4 c0010ca0 600c0113 ffffffff
[ 3988.752777] r9:c0967125 r8:c0967125 r7:ef09ff8c r6:ffffffff r5:600c0113 r4:c0010ca0
[ 3988.760223] [<c0010c78>] (arch_cpu_idle) from [<c006f7b0>] (default_idle_call+0x28/0x34)
[ 3988.774658] [<c006f788>] (default_idle_call) from [<c006f8d4>] (cpu_startup_entry+0x118/0x188)
[ 3988.785583] [<c006f7bc>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[ 3988.785583] r7:c096a288 r4:c093d1c0
[ 3988.798950] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[ 3988.803710] r5:00000051 r4:af08406a
[132761.897125] INFO: rcu_preempt self-detected stall on CPU
[132761.901550] INFO: rcu_preempt self-detected stall on CPU
[132761.901580] 0-...: (1 ticks this GP) idle=5c7/1/0 softirq=1211802/1211802 fqs=0
[132761.901580]
[132761.901580] (t=8376 jiffies g=411486 c=411485 q=190)
[132761.901580] rcu_preempt kthread starved for 8376 jiffies! g411486 c411485 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[132761.901580] rcu_preempt S
[132761.901580] c06bacb0
[132761.901611] 0 7 2 0x00000000
[132761.901611] Backtrace:
[132761.901611] [<c06baae4>] (__schedule) from [<c06bb040>] (schedule+0x54/0xc4)
[132761.901611] r10:c092a518
[132761.901611] r9:00000001
[132761.901611] r8:00c9fe1a
[132761.901611] r7:c092a100
[132761.901611] r6:ef097ed4
[132761.901672] r5:ef7b73c0
[132761.901672] r4:ef096000
[132761.901672] [<c06bafec>] (schedule) from [<c06bde40>] (schedule_timeout+0x118/0x1ac)
[132761.901702] r5:ef7b73c0
[132761.901702] r4:ef7b73c0
[132761.901702] [<c06bdd28>] (schedule_timeout) from [<c008617c>] (rcu_gp_kthread+0x64c/0x99c)
[132761.901702] r8:c092a100
[132761.901702] r7:c093a210
[132761.901702] r6:c093a21c
[132761.901702] r5:c093a080
[132761.901702] r4:00000000
[132761.901763] [<c0085b30>] (rcu_gp_kthread) from [<c00505c4>] (kthread+0xe4/0xfc)
[132761.901763] r7:c0085b30
[132761.901763] [<c00504e0>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[132761.901763] r7:00000000
[132761.901763] r6:00000000
[132761.901824] r5:c00504e0
[132761.901824] r4:ef0407c0
[132761.901824] Task dump for CPU 0:
[132761.901824] swapper/0 R
[132761.901824] running
[132761.901824] 0 0 0 0x00000000
[132761.901824] Backtrace:
[132761.901855] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[132761.901855] r7:c092a518
[132761.901885] r6:800b0193
[132761.901885] r5:00000000
[132761.901885] r4:c092d180
[132761.901916] [<c0014164>] (show_stack) from [<c005acf8>] (sched_show_task+0xbc/0x110)
[132761.901916] [<c005ac3c>] (sched_show_task) from [<c005d188>] (dump_cpu_task+0x40/0x48)
[132761.901916] r5:c093a080
[132761.901916] r4:00000000
[132761.901947] [<c005d148>] (dump_cpu_task) from [<c0082954>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[132761.901947] r5:c093a080
[132761.901947] r4:00000001
[132761.901977] [<c00828b8>] (rcu_dump_cpu_stacks) from [<c0086db8>] (rcu_check_callbacks+0x500/0x8e4)
[132761.901977] r9:c093a080
[132761.901977] r8:c092a624
[132761.901977] r7:2ee88000
[132761.901977] r6:c0927340
[132761.902008] r5:c093a080
[132761.902008] r4:ef7af340
[132761.902008] [<c00868b8>] (rcu_check_callbacks) from [<c0089fe8>] (update_process_times+0x40/0x6c)
[132761.902038] r10:c009b29c
[132761.902038] r9:00000001
[132761.902038] r8:ef7abc4c
[132761.902038] r7:000078be
[132761.902038] r6:f94e2e08
[132761.902038] r5:00000000
[132761.902038] r4:c092d180
[132761.902069] [<c0089fa8>] (update_process_times) from [<c009b298>] (tick_sched_handle+0x50/0x54)
[132761.902069] r5:c0929f10
[132761.902069] r4:ef7abe40
[132761.902099] [<c009b248>] (tick_sched_handle) from [<c009b2ec>] (tick_sched_timer+0x50/0x94)
[132761.902099] [<c009b29c>] (tick_sched_timer) from [<c008aa2c>] (__hrtimer_run_queues+0x110/0x1a4)
[132761.902130] r7:00000000
[132761.902130] r6:ef7abc40
[132761.902130] r5:ef7abe40
[132761.902130] r4:ef7abc00
[132761.902130] [<c008a91c>] (__hrtimer_run_queues) from [<c008b0c0>] (hrtimer_interrupt+0xac/0x1fc)
[132761.902160] r10:ef7abc78
[132761.902160] r9:ef7abc98
[132761.902160] r8:ef7abc14
[132761.902160] r7:ef7abcb8
[132761.902160] r6:ffffffff
[132761.902160] r5:00000003
[132761.902191] r4:ef7abc00
[132761.902191] [<c008b014>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[132761.902191] r10:c092a4ec
[132761.902191] r9:fa241100
[132761.902221] r8:00000011
[132761.902221] r7:ef0287c0
[132761.902221] r6:c092a7a4
[132761.902221] r5:ef005cc0
[132761.902221] r4:00000001
[132761.902252] [<c00171d4>] (twd_handler) from [<c007d0bc>] (handle_percpu_devid_irq+0x74/0x8c)
[132761.902252] r5:ef005cc0
[132761.902252] r4:ef7b1780
[132761.902282] [<c007d048>] (handle_percpu_devid_irq) from [<c0078b44>] (generic_handle_irq+0x2c/0x3c)
[132761.902282] r9:fa241100
[132761.902282] r8:ef008000
[132761.902282] r7:00000001
[132761.902282] r6:00000000
[132761.902282] r5:00000000
[132761.902313] r4:c092441c
[132761.902313] [<c0078b18>] (generic_handle_irq) from [<c0078e3c>] (__handle_domain_irq+0x64/0xbc)
[132761.902313] [<c0078dd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[132761.902343] r9:fa241100
[132761.902343] r8:fa240100
[132761.902343] r7:c0929f10
[132761.902343] r6:fa24010c
[132761.902343] r5:c092a7a4
[132761.902343] r4:c0948008
[132761.902374] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[132761.902374] Exception stack(0xc0929f10 to 0xc0929f58)
[132761.902374] 9f00: 00000000 ef7ab390 fe600000 00000000
[132761.902404] 9f20: c0928000 c092a49c c092336c c0929f80 c0967125 c0967125 c092a4ec c0929f6c
[132761.902404] 9f40: c0929f4c c0929f60 c0028ab4 c0010ca0 600b0113 ffffffff
[132761.902404] r9:c0967125
[132761.902404] r8:c0967125
[132761.902404] r7:c0929f44
[132761.902435] r6:ffffffff
[132761.902435] r5:600b0113
[132761.902435] r4:c0010ca0
[132761.902435] [<c0010c78>] (arch_cpu_idle) from [<c006f7b0>] (default_idle_call+0x28/0x34)
[132761.902435] [<c006f788>] (default_idle_call) from [<c006f8d4>] (cpu_startup_entry+0x118/0x188)
[132761.902496] [<c006f7bc>] (cpu_startup_entry) from [<c06ba414>] (rest_init+0x90/0x94)
[132761.902496] r7:ffffffff
[132761.902496] r4:00000002
[132761.902496] [<c06ba384>] (rest_init) from [<c08ddd0c>] (start_kernel+0x390/0x39c)
[132761.902496] r5:c096a000
[132761.902496] r4:00000000
[132761.902557] [<c08dd97c>] (start_kernel) from [<8000807c>] (0x8000807c)
[132761.902557] Task dump for CPU 1:
[132761.902557] swapper/1 R
[132761.902557] running
[132761.902557] 0 0 1 0x00000000
[132761.902557] Backtrace:
[132761.902587] Backtrace aborted due to bad frame pointer <ef09ff9c>
[132762.299804] 1-...: (1 ticks this GP) idle=795/1/0 softirq=943809/943809 fqs=0
[132762.299804] (t=8376 jiffies g=411486 c=411485 q=190)
[132762.377044] rcu_preempt kthread starved for 8376 jiffies! g411486 c411485 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[132762.382385] rcu_preempt S c06bacb0 0 7 2 0x00000000
[132762.389801] Backtrace:
[132762.389801] [<c06baae4>] (__schedule) from [<c06bb040>] (schedule+0x54/0xc4)
[132762.402404] r10:c092a518 r9:00000001 r8:00c9fe1a r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[132762.409790] r4:ef096000
[132762.409790] [<c06bafec>] (schedule) from [<c06bde40>] (schedule_timeout+0x118/0x1ac)
[132762.409790] r5:ef7b73c0 r4:ef7b73c0
[132762.424163] [<c06bdd28>] (schedule_timeout) from [<c008617c>] (rcu_gp_kthread+0x64c/0x99c)
[132762.429809] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[132762.439788] [<c0085b30>] (rcu_gp_kthread) from [<c00505c4>] (kthread+0xe4/0xfc)
[132762.451934] r7:c0085b30
[132762.451934] [<c00504e0>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[132762.451934] r7:00000000 r6:00000000 r5:c00504e0 r4:ef0407c0
[132762.451934] Task dump for CPU 1:
[132762.472045] swapper/1 R running 0 0 1 0x00000000
[132762.475494] Backtrace:
[132762.481567] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[132762.481567] r7:c092a518 r6:800c0193 r5:00000001 r4:ef077480
[132762.495788] [<c0014164>] (show_stack) from [<c005acf8>] (sched_show_task+0xbc/0x110)
[132762.500518] [<c005ac3c>] (sched_show_task) from [<c005d188>] (dump_cpu_task+0x40/0x48)
[132762.509796] r5:c093a080 r4:00000001
[132762.509796] [<c005d148>] (dump_cpu_task) from [<c0082954>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[132762.525268] r5:c093a080 r4:00000002
[132762.525268] [<c00828b8>] (rcu_dump_cpu_stacks) from [<c0086db8>] (rcu_check_callbacks+0x500/0x8e4)
[132762.529785] r9:c093a080 r8:c092a624 r7:2ee94000 r6:c0927340 r5:c093a080 r4:ef7bb340
[132762.547058] [<c00868b8>] (rcu_check_callbacks) from [<c0089fe8>] (update_process_times+0x40/0x6c)
[132762.552520] r10:c009b29c r9:00000001 r8:ef7b7c4c r7:000078be r6:f909ba3d r5:00000000
[132762.564941] r4:ef077480
[132762.564941] [<c0089fa8>] (update_process_times) from [<c009b298>] (tick_sched_handle+0x50/0x54)
[132762.577026] r5:ef09ff58 r4:ef7b7e40
[132762.577026] [<c009b248>] (tick_sched_handle) from [<c009b2ec>] (tick_sched_timer+0x50/0x94)
[132762.582550] [<c009b29c>] (tick_sched_timer) from [<c008aa2c>] (__hrtimer_run_queues+0x110/0x1a4)
[132762.582550] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[132762.604278] [<c008a91c>] (__hrtimer_run_queues) from [<c008b0c0>] (hrtimer_interrupt+0xac/0x1fc)
[132762.614715] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[132762.619781] r4:ef7b7c00
[132762.625915] [<c008b014>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[132762.634368] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a4 r5:ef005cc0
[132762.642791] r4:00000001
[132762.645568] [<c00171d4>] (twd_handler) from [<c007d0bc>] (handle_percpu_devid_irq+0x74/0x8c)
[132762.645568] r5:ef005cc0 r4:ef7bd780
[132762.658477] [<c007d048>] (handle_percpu_devid_irq) from [<c0078b44>] (generic_handle_irq+0x2c/0x3c)
[132762.660644] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092441c
[132762.676452] [<c0078b18>] (generic_handle_irq) from [<c0078e3c>] (__handle_domain_irq+0x64/0xbc)
[132762.685760] [<c0078dd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[132762.693115] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a4 r4:c0948008
[132762.703002] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[132762.705352] Exception stack(0xef09ff58 to 0xef09ffa0)
[132762.714233] ff40: 00000000 ef7b7390
[132762.716461] ff60: fe600000 00000000 ef09e000 c092a49c c092336c ef09ffc8 c0967125 c0967125
[132762.733947] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028ab4 c0010ca0 600c0113 ffffffff
[132762.734252] r9:c0967125 r8:c0967125 r7:ef09ff8c r6:ffffffff r5:600c0113 r4:c0010ca0
[132762.745330] [<c0010c78>] (arch_cpu_idle) from [<c006f7b0>] (default_idle_call+0x28/0x34)
[132762.759674] [<c006f788>] (default_idle_call) from [<c006f8d4>] (cpu_startup_entry+0x118/0x188)
[132762.768890] [<c006f7bc>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[132762.769897] r7:c096a288 r4:c093d1c0
[132762.782440] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[132762.782440] r5:00000051 r4:af08406a
[139046.079986] INFO: rcu_preempt self-detected stall on CPU
[139046.079986] INFO: rcu_preempt self-detected stall on CPU
[139046.079986] 0-...: (1 ticks this GP) idle=19d/1/0 softirq=1263243/1263243 fqs=0
[139046.079986]
[139046.080047] (t=17067 jiffies g=430516 c=430515 q=188)
[139046.080047] rcu_preempt kthread starved for 17067 jiffies! g430516 c430515 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[139046.080047] rcu_preempt S
[139046.080047] c06bacb0
[139046.080047] 0 7 2 0x00000000
[139046.080078] Backtrace:
[139046.080078] [<c06baae4>] (__schedule) from [<c06bb040>] (schedule+0x54/0xc4)
[139046.080108] r10:c092a518
[139046.080108] r9:00000001
[139046.080108] r8:00d372e8
[139046.080108] r7:c092a100
[139046.080108] r6:ef097ed4
[139046.080108] r5:ef7ab3c0
[139046.080139] r4:ef096000
[139046.080139] [<c06bafec>] (schedule) from [<c06bde40>] (schedule_timeout+0x118/0x1ac)
[139046.080139] r5:ef7ab3c0
[139046.080139] r4:ef7ab3c0
[139046.080169] [<c06bdd28>] (schedule_timeout) from [<c008617c>] (rcu_gp_kthread+0x64c/0x99c)
[139046.080169] r8:c092a100
[139046.080200] r7:c093a210
[139046.080200] r6:c093a21c
[139046.080200] r5:c093a080
[139046.080200] r4:00000000
[139046.080230] [<c0085b30>] (rcu_gp_kthread) from [<c00505c4>] (kthread+0xe4/0xfc)
[139046.080230] r7:c0085b30
[139046.080230] [<c00504e0>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[139046.080230] r7:00000000
[139046.080230] r6:00000000
[139046.080230] r5:c00504e0
[139046.080230] r4:ef0407c0
[139046.080230] Task dump for CPU 0:
[139046.080291] swapper/0 R
[139046.080291] running
[139046.080291] 0 0 0 0x00000000
[139046.080291] Backtrace:
[139046.080322] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[139046.080322] r7:c092a518
[139046.080322] r6:800f0193
[139046.080322] r5:00000000
[139046.080322] r4:c092d180
[139046.080352] [<c0014164>] (show_stack) from [<c005acf8>] (sched_show_task+0xbc/0x110)
[139046.080383] [<c005ac3c>] (sched_show_task) from [<c005d188>] (dump_cpu_task+0x40/0x48)
[139046.080383] r5:c093a080
[139046.080383] r4:00000000
[139046.080413] [<c005d148>] (dump_cpu_task) from [<c0082954>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[139046.080413] r5:c093a080
[139046.080413] r4:00000001
[139046.080413] [<c00828b8>] (rcu_dump_cpu_stacks) from [<c0086db8>] (rcu_check_callbacks+0x500/0x8e4)
[139046.080413] r9:c093a080
[139046.080444] r8:c092a624
[139046.080444] r7:2ee88000
[139046.080444] r6:c0927340
[139046.080444] r5:c093a080
[139046.080444] r4:ef7af340
[139046.080474] [<c00868b8>] (rcu_check_callbacks) from [<c0089fe8>] (update_process_times+0x40/0x6c)
[139046.080474] r10:c009b29c
[139046.080474] r9:00000001
[139046.080474] r8:ef7abc4c
[139046.080474] r7:00007e76
[139046.080505] r6:1ea02e37
[139046.080505] r5:00000000
[139046.080505] r4:c092d180
[139046.080505] [<c0089fa8>] (update_process_times) from [<c009b298>] (tick_sched_handle+0x50/0x54)
[139046.080505] r5:c0929f10
[139046.080505] r4:ef7abe40
[139046.080505] [<c009b248>] (tick_sched_handle) from [<c009b2ec>] (tick_sched_timer+0x50/0x94)
[139046.080566] [<c009b29c>] (tick_sched_timer) from [<c008aa2c>] (__hrtimer_run_queues+0x110/0x1a4)
[139046.080566] r7:00000000
[139046.080566] r6:ef7abc40
[139046.080566] r5:ef7abe40
[139046.080566] r4:ef7abc00
[139046.080596] [<c008a91c>] (__hrtimer_run_queues) from [<c008b0c0>] (hrtimer_interrupt+0xac/0x1fc)
[139046.080596] r10:ef7abc78
[139046.080596] r9:ef7abc98
[139046.080596] r8:ef7abc14
[139046.080596] r7:ef7abcb8
[139046.080627] r6:ffffffff
[139046.080627] r5:00000003
[139046.080627] r4:ef7abc00
[139046.080657] [<c008b014>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[139046.080657] r10:c092a4ec
[139046.080657] r9:fa241100
[139046.080657] r8:00000011
[139046.080657] r7:ef0287c0
[139046.080657] r6:c092a7a4
[139046.080657] r5:ef005cc0
[139046.080688] r4:00000001
[139046.080688] [<c00171d4>] (twd_handler) from [<c007d0bc>] (handle_percpu_devid_irq+0x74/0x8c)
[139046.080718] r5:ef005cc0
[139046.080718] r4:ef7b1780
[139046.080718] [<c007d048>] (handle_percpu_devid_irq) from [<c0078b44>] (generic_handle_irq+0x2c/0x3c)
[139046.080718] r9:fa241100
[139046.080749] r8:ef008000
[139046.080749] r7:00000001
[139046.080749] r6:00000000
[139046.080749] r5:00000000
[139046.080749] r4:c092441c
[139046.080780] [<c0078b18>] (generic_handle_irq) from [<c0078e3c>] (__handle_domain_irq+0x64/0xbc)
[139046.080780] [<c0078dd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[139046.080780] r9:fa241100
[139046.080780] r8:fa240100
[139046.080780] r7:c0929f10
[139046.080810] r6:fa24010c
[139046.080810] r5:c092a7a4
[139046.080810] r4:c0948008
[139046.080810] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[139046.080810] Exception stack(0xc0929f10 to 0xc0929f58)
[139046.080841] 9f00: 00000000 ef7ab390 fe600000 00000000
[139046.080841] 9f20: c0928000 c092a49c c092336c c0929f80 c0967125 c0967125 c092a4ec c0929f6c
[139046.080871] 9f40: c0929f4c c0929f60 c0028ab4 c0010ca0 600f0113 ffffffff
[139046.080871] r9:c0967125
[139046.080871] r8:c0967125
[139046.080871] r7:c0929f44
[139046.080871] r6:ffffffff
[139046.080871] r5:600f0113
[139046.080871] r4:c0010ca0
[139046.080871] [<c0010c78>] (arch_cpu_idle) from [<c006f7b0>] (default_idle_call+0x28/0x34)
[139046.080932] [<c006f788>] (default_idle_call) from [<c006f8d4>] (cpu_startup_entry+0x118/0x188)
[139046.080932] [<c006f7bc>] (cpu_startup_entry) from [<c06ba414>] (rest_init+0x90/0x94)
[139046.080932] r7:ffffffff
[139046.080932] r4:00000002
[139046.080963] [<c06ba384>] (rest_init) from [<c08ddd0c>] (start_kernel+0x390/0x39c)
[139046.080993] r5:c096a000
[139046.080993] r4:00000000
[139046.080993] [<c08dd97c>] (start_kernel) from [<8000807c>] (0x8000807c)
[139046.080993] Task dump for CPU 1:
[139046.081024] swapper/1 R
[139046.081024] running
[139046.081024] 0 0 1 0x00000002
[139046.081024] Backtrace:
[139046.081024] Backtrace aborted due to bad frame pointer <ef09ff9c>
[139046.537567] 1-...: (1 GPs behind) idle=5fd/1/0 softirq=988582/988582 fqs=41
[139046.547546] (t=17114 jiffies g=430516 c=430515 q=111)
[139046.560028] Task dump for CPU 1:
[139046.563537] swapper/1 R running 0 0 1 0x00000002
[139046.567504] Backtrace:
[139046.573059] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[139046.573059] r7:c092a518 r6:80010193 r5:00000001 r4:ef077480
[139046.587280] [<c0014164>] (show_stack) from [<c005acf8>] (sched_show_task+0xbc/0x110)
[139046.587280] [<c005ac3c>] (sched_show_task) from [<c005d188>] (dump_cpu_task+0x40/0x48)
[139046.587280] r5:c093a080 r4:00000001
[139046.607940] [<c005d148>] (dump_cpu_task) from [<c0082954>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[139046.607940] r5:c093a080 r4:00000002
[139046.620666] [<c00828b8>] (rcu_dump_cpu_stacks) from [<c0086db8>] (rcu_check_callbacks+0x500/0x8e4)
[139046.620666] r9:c093a080 r8:c092a624 r7:2ee94000 r6:c0927340 r5:c093a080 r4:ef7bb340
[139046.620666] [<c00868b8>] (rcu_check_callbacks) from [<c0089fe8>] (update_process_times+0x40/0x6c)
[139046.648040] r10:c009b29c r9:00000001 r8:ef7b7c4c r7:00007e76 r6:1f1155ef r5:00000000
[139046.648040] r4:ef077480
[139046.648040] [<c0089fa8>] (update_process_times) from [<c009b298>] (tick_sched_handle+0x50/0x54)
[139046.659240] r5:ef09ff58 r4:ef7b7e40
[139046.672424] [<c009b248>] (tick_sched_handle) from [<c009b2ec>] (tick_sched_timer+0x50/0x94)
[139046.672424] [<c009b29c>] (tick_sched_timer) from [<c008aa2c>] (__hrtimer_run_queues+0x110/0x1a4)
[139046.690734] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[139046.690734] [<c008a91c>] (__hrtimer_run_queues) from [<c008b0c0>] (hrtimer_interrupt+0xac/0x1fc)
[139046.706237] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000002
[139046.706237] r4:ef7b7c00
[139046.706237] [<c008b014>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[139046.725891] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a4 r5:ef005cc0
[139046.725891] r4:00000001
[139046.737091] [<c00171d4>] (twd_handler) from [<c007d0bc>] (handle_percpu_devid_irq+0x74/0x8c)
[139046.737091] r5:ef005cc0 r4:ef7bd780
[139046.749999] [<c007d048>] (handle_percpu_devid_irq) from [<c0078b44>] (generic_handle_irq+0x2c/0x3c)
[139046.749999] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092441c
[139046.767974] [<c0078b18>] (generic_handle_irq) from [<c0078e3c>] (__handle_domain_irq+0x64/0xbc)
[139046.767974] [<c0078dd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[139046.767974] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a4 r4:c0948008
[139046.794525] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[139046.794525] Exception stack(0xef09ff58 to 0xef09ffa0)
[139046.807983] ff40: 00000000 ef7b7390
[139046.807983] ff60: fe600000 00000000 ef09e000 c092a49c c092336c ef09ffc8 c0967125 c0967125
[139046.825469] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028ab4 c0010ca0 60010113 ffffffff
[139046.825469] r9:c0967125 r8:c0967125 r7:ef09ff8c r6:ffffffff r5:60010113 r4:c0010ca0
[139046.834228] [<c0010c78>] (arch_cpu_idle) from [<c006f7b0>] (default_idle_call+0x28/0x34)
[139046.834228] [<c006f788>] (default_idle_call) from [<c006f8d4>] (cpu_startup_entry+0x118/0x188)
[139046.860412] [<c006f7bc>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[139046.870086] r7:c096a288 r4:c093d1c0
[139046.870086] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[139046.870086] r5:00000051 r4:af08406a
[143828.257507] INFO: rcu_preempt self-detected stall on CPU
[143828.263244] 1-...: (1 ticks this GP) idle=50f/1/0 softirq=1020351/1020351 fqs=0
[143828.264709] INFO: rcu_preempt detected stalls on CPUs/tasks:
[143828.264709] 1-...: (1 ticks this GP) idle=50f/1/0 softirq=1020351/1020351 fqs=0
[143828.264709] (detected by 0, t=21433 jiffies, g=444713, c=444712, q=111)
[143828.264739] Task dump for CPU 1:
[143828.264739] swapper/1 R running 0 0 1 0x00000000
[143828.264739] Backtrace:
[143828.264770] Backtrace aborted due to bad frame pointer <ef09ff9c>
[143828.264770] rcu_preempt kthread starved for 21433 jiffies! g444713 c444712 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[143828.264770] rcu_preempt S c06bacb0 0 7 2 0x00000000
[143828.264801] Backtrace:
[143828.264801] [<c06baae4>] (__schedule) from [<c06bb040>] (schedule+0x54/0xc4)
[143828.264831] r10:c092a518 r9:00000001 r8:00daade3 r7:c092a100 r6:ef097ed4 r5:ef7b73c0
[143828.264831] r4:ef096000
[143828.264862] [<c06bafec>] (schedule) from [<c06bde40>] (schedule_timeout+0x118/0x1ac)
[143828.264862] r5:ef7b73c0 r4:ef7b73c0
[143828.264892] [<c06bdd28>] (schedule_timeout) from [<c008617c>] (rcu_gp_kthread+0x64c/0x99c)
[143828.264923] r8:c092a100 r7:c093a210 r6:c093a21c r5:c093a080 r4:00000000
[143828.264923] [<c0085b30>] (rcu_gp_kthread) from [<c00505c4>] (kthread+0xe4/0xfc)
[143828.264923] r7:c0085b30
[143828.264923] [<c00504e0>] (kthread) from [<c000fb98>] (ret_from_fork+0x14/0x3c)
[143828.264984] r7:00000000 r6:00000000 r5:c00504e0 r4:ef0407c0
[143828.403320] (t=21433 jiffies g=444713 c=444712 q=111)
[143828.408905] Task dump for CPU 1:
[143828.412353] swapper/1 R running 0 0 1 0x00000000
[143828.419281] Backtrace:
[143828.421936] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[143828.430053] r7:c092a518 r6:80010193 r5:00000001 r4:ef077480
[143828.435974] [<c0014164>] (show_stack) from [<c005acf8>] (sched_show_task+0xbc/0x110)
[143828.444122] [<c005ac3c>] (sched_show_task) from [<c005d188>] (dump_cpu_task+0x40/0x48)
[143828.452972] r5:c093a080 r4:00000001
[143828.456604] [<c005d148>] (dump_cpu_task) from [<c0082954>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[143828.465698] r5:c093a080 r4:00000002
[143828.465698] [<c00828b8>] (rcu_dump_cpu_stacks) from [<c0086db8>] (rcu_check_callbacks+0x500/0x8e4)
[143828.479156] r9:c093a080 r8:c092a624 r7:2ee94000 r6:c0927340 r5:c093a080 r4:ef7bb340
[143828.487487] [<c00868b8>] (rcu_check_callbacks) from [<c0089fe8>] (update_process_times+0x40/0x6c)
[143828.487487] r10:c009b29c r9:00000001 r8:ef7b7c4c r7:000082cf r6:8e083bf2 r5:00000000
[143828.505371] r4:ef077480
[143828.505371] [<c0089fa8>] (update_process_times) from [<c009b298>] (tick_sched_handle+0x50/0x54)
[143828.517456] r5:ef09ff58 r4:ef7b7e40
[143828.521362] [<c009b248>] (tick_sched_handle) from [<c009b2ec>] (tick_sched_timer+0x50/0x94)
[143828.521362] [<c009b29c>] (tick_sched_timer) from [<c008aa2c>] (__hrtimer_run_queues+0x110/0x1a4)
[143828.538055] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[143828.538055] [<c008a91c>] (__hrtimer_run_queues) from [<c008b0c0>] (hrtimer_interrupt+0xac/0x1fc)
[143828.554687] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[143828.562866] r4:ef7b7c00
[143828.562866] [<c008b014>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[143828.574829] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a4 r5:ef005cc0
[143828.582611] r4:00000001
[143828.586029] [<c00171d4>] (twd_handler) from [<c007d0bc>] (handle_percpu_devid_irq+0x74/0x8c)
[143828.586029] r5:ef005cc0 r4:ef7bd780
[143828.598937] [<c007d048>] (handle_percpu_devid_irq) from [<c0078b44>] (generic_handle_irq+0x2c/0x3c)
[143828.598937] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092441c
[143828.614685] [<c0078b18>] (generic_handle_irq) from [<c0078e3c>] (__handle_domain_irq+0x64/0xbc)
[143828.623199] [<c0078dd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[143828.634674] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a4 r4:c0948008
[143828.643463] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[143828.644683] Exception stack(0xef09ff58 to 0xef09ffa0)
[143828.654693] ff40: 00000000 ef7b7390
[143828.665374] ff60: fe600000 00000000 ef09e000 c092a49c c092336c ef09ffc8 c0967125 c0967125
[143828.671234] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028ab4 c0010ca0 60010113 ffffffff
[143828.677124] r9:c0967125 r8:c0967125 r7:ef09ff8c r6:ffffffff r5:60010113 r4:c0010ca0
[143828.686187] [<c0010c78>] (arch_cpu_idle) from [<c006f7b0>] (default_idle_call+0x28/0x34)
[143828.686187] [<c006f788>] (default_idle_call) from [<c006f8d4>] (cpu_startup_entry+0x118/0x188)
[143828.686187] [<c006f7bc>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[143828.719024] r7:c096a288 r4:c093d1c0
[143828.720153] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[143828.730834] r5:00000051 r4:af08406a
[267048.206451] INFO: rcu_preempt self-detected stall on CPU
[267048.207763] 1-...: (1 GPs behind) idle=35d/1/0 softirq=1890766/1890767 fqs=1
[267048.219970] (t=34092 jiffies g=825350 c=825349 q=16)
[267048.223052] INFO: rcu_preempt detected stalls on CPUs/tasks:
[267048.223052] 1-...: (1 GPs behind) idle=35d/1/0 softirq=1890766/1890767 fqs=1
[267048.223052] (detected by 0, t=34092 jiffies, g=825350, c=825349, q=16)
[267048.223083] Task dump for CPU 1:
[267048.223083] swapper/1 R running 0 0 1 0x00000000
[267048.223083] Backtrace:
[267048.223114] Backtrace aborted due to bad frame pointer <ef09ff9c>
[267048.265869] Task dump for CPU 1:
[267048.269378] swapper/1 R running 0 0 1 0x00000002
[267048.271606] Backtrace:
[267048.276214] [<c0013f80>] (dump_backtrace) from [<c001417c>] (show_stack+0x18/0x1c)
[267048.287017] r7:c092a518 r6:80010193 r5:00000001 r4:ef077480
[267048.287017] [<c0014164>] (show_stack) from [<c005acf8>] (sched_show_task+0xbc/0x110)
[267048.300720] [<c005ac3c>] (sched_show_task) from [<c005d188>] (dump_cpu_task+0x40/0x48)
[267048.309906] r5:c093a080 r4:00000001
[267048.313201] [<c005d148>] (dump_cpu_task) from [<c0082954>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[267048.314880] r5:c093a080 r4:00000002
[267048.314880] [<c00828b8>] (rcu_dump_cpu_stacks) from [<c0086db8>] (rcu_check_callbacks+0x500/0x8e4)
[267048.329956] r9:c093a080 r8:c092a624 r7:2ee94000 r6:c0927340 r5:c093a080 r4:ef7bb340
[267048.344421] [<c00868b8>] (rcu_check_callbacks) from [<c0089fe8>] (update_process_times+0x40/0x6c)
[267048.351593] r10:c009b29c r9:00000001 r8:ef7b7c4c r7:0000f2e0 r6:e7c10de6 r5:00000000
[267048.361602] r4:ef077480
[267048.361602] [<c0089fa8>] (update_process_times) from [<c009b298>] (tick_sched_handle+0x50/0x54)
[267048.371582] r5:ef09ff58 r4:ef7b7e40
[267048.371582] [<c009b248>] (tick_sched_handle) from [<c009b2ec>] (tick_sched_timer+0x50/0x94)
[267048.384857] [<c009b29c>] (tick_sched_timer) from [<c008aa2c>] (__hrtimer_run_queues+0x110/0x1a4)
[267048.396606] r7:00000000 r6:ef7b7c40 r5:ef7b7e40 r4:ef7b7c00
[267048.402709] [<c008a91c>] (__hrtimer_run_queues) from [<c008b0c0>] (hrtimer_interrupt+0xac/0x1fc)
[267048.412109] r10:ef7b7c78 r9:ef7b7c98 r8:ef7b7c14 r7:ef7b7cb8 r6:ffffffff r5:00000003
[267048.412109] r4:ef7b7c00
[267048.412109] [<c008b014>] (hrtimer_interrupt) from [<c001720c>] (twd_handler+0x38/0x48)
[267048.431060] r10:c092a4ec r9:fa241100 r8:00000011 r7:ef0287c0 r6:c092a7a4 r5:ef005cc0
[267048.431060] r4:00000001
[267048.442962] [<c00171d4>] (twd_handler) from [<c007d0bc>] (handle_percpu_devid_irq+0x74/0x8c)
[267048.442962] r5:ef005cc0 r4:ef7bd780
[267048.455871] [<c007d048>] (handle_percpu_devid_irq) from [<c0078b44>] (generic_handle_irq+0x2c/0x3c)
[267048.460205] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c092441c
[267048.471588] [<c0078b18>] (generic_handle_irq) from [<c0078e3c>] (__handle_domain_irq+0x64/0xbc)
[267048.483154] [<c0078dd8>] (__handle_domain_irq) from [<c00094d4>] (gic_handle_irq+0x50/0x90)
[267048.491638] r9:fa241100 r8:fa240100 r7:ef09ff58 r6:fa24010c r5:c092a7a4 r4:c0948008
[267048.491638] [<c0009484>] (gic_handle_irq) from [<c0014cd4>] (__irq_svc+0x54/0x90)
[267048.508422] Exception stack(0xef09ff58 to 0xef09ffa0)
[267048.513854] ff40: 00000000 ef7b7390
[267048.513854] ff60: fe600000 00000000 ef09e000 c092a49c c092336c ef09ffc8 c0967125 c0967125
[267048.513854] ff80: c092a4ec ef09ffb4 ef09ff94 ef09ffa8 c0028ab4 c0010ca0 60010113 ffffffff
[267048.513854] r9:c0967125 r8:c0967125 r7:ef09ff8c r6:ffffffff r5:60010113 r4:c0010ca0
[267048.544830] [<c0010c78>] (arch_cpu_idle) from [<c006f7b0>] (default_idle_call+0x28/0x34)
[267048.544830] [<c006f788>] (default_idle_call) from [<c006f8d4>] (cpu_startup_entry+0x118/0x188)
[267048.558349] [<c006f7bc>] (cpu_startup_entry) from [<c001627c>] (secondary_start_kernel+0x178/0x184)
[267048.575958] r7:c096a288 r4:c093d1c0
[267048.575958] [<c0016104>] (secondary_start_kernel) from [<800095ac>] (0x800095ac)
[267048.587768] r5:00000051 r4:af08406a
$
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-04 5:30 ` Ross Green
@ 2016-03-04 15:18 ` Paul E. McKenney
0 siblings, 0 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-04 15:18 UTC (permalink / raw)
To: Ross Green
Cc: Mathieu Desnoyers, John Stultz, Thomas Gleixner, Peter Zijlstra,
lkml, Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton,
Josh Triplett, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar
On Fri, Mar 04, 2016 at 04:30:12PM +1100, Ross Green wrote:
> On Fri, Feb 26, 2016 at 12:35 PM, Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
[ . . . ]
> >> OK, so what wakeup path omits the sched_wakeup event?
> >>
> >> The sched_waking event looks to occur once in try_to_wake_up() and
> >> once in try_to_wake_up_local(). Starting with try_to_wake_up():
> >>
> >> o If the task is ->on_rq, ttwu_remote() is invoked:
> >>
> >> o This acquires the runqueue lock, then if
> >> task_on_rq_queued() invokes ttwu_do_wakeup(). This
> >> unconditionally does sched_wakeup, so we didn't go that
> >> way. (And this path skips the bulk of try_to_wake_up()
> >> on return.)
> >>
> >> o Otherwise, we release the runqueu lock and returns zero.
> >>
> >> o There is some ordering checking, runqueue selection, and then
> >> p->state is set to TASK_WAKING. And we apparently are not getting
> >> here, either. But I don't see any other way out.
> >>
> >> Ignoring this for the moment...
> >>
> >> We eventually reach to the call to ttwu_queue().
> >>
> >> o Here the TTWU_QUEUE path seems to avoid doing a
> >> sched_wakeup event -- and since we are trying to wake
> >> CPU 0 from CPU 4, so they don't share cache (x86).
> >>
> >> o This invokes ttwu_queue_remote(), which sends an IPI
> >> unless polling is in effect. I would need to enable
> >> trace_sched_wake_idle_without_ipi() to see whether or
> >> not the IPI was actually sent.
> >>
> >> If the target CPU was offline, we should have seen the
> >> cpu_is_offline() WARN_ON(). I suppose that the CPU might
> >> go offline between the check and the ->send_IPI_mask(),
> >> but only once. And we are trying to wakeup on CPU 0
> >> quite a few times.
> >>
> >> Any thoughts on what to look for?
> >>
> >> Next, try_to_wake_up_local():
> >>
> >> o After doing several checks, it does the sched_waking event.
> >>
> >> o If the task is already queued, it calls ttwu_activate().
> >>
> >> o It then invokes ttwu_do_wakeup(), which unconditionally
> >> does the sched_wakeup() event.
> >>
> >> So this path looks unlikely, even ignoring the fact that
> >> the waking CPU in the traces above is always different than
> >> the CPU to be awakened on.
> >>
> >> Any thoughts?
> >>
> >> Thanx, Paul
> G'day,
>
>
> Here is a series of rcu_preempt stall events(5) from linux-4.5-rc6 release.
>
> Again some testing procedure. boot, run series of brief benchmarks and
> then leave idle.
> The first stall event appeared quite quickly - within hours, the rest
> at what appears to be random intervals after that.
>
>
> I thought I might give Daniels patch set a try and see how that goes!
Looks like the same issue from dmesg.
For my part, I added more tracing, which seems to have further decreased
the probability of occurrence. The sched_wake_idle_without_ipi event
did not appear.
My next step is to try writing a torture test focused specifically on
this issue. We need a faster reproducer to make decent progress.
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-02-26 0:56 ` Paul E. McKenney
2016-02-26 1:35 ` Paul E. McKenney
@ 2016-03-18 21:00 ` Josh Triplett
2016-03-18 23:56 ` Paul E. McKenney
1 sibling, 1 reply; 79+ messages in thread
From: Josh Triplett @ 2016-03-18 21:00 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Ross Green, Mathieu Desnoyers, John Stultz, Thomas Gleixner,
Peter Zijlstra, lkml, Ingo Molnar, Lai Jiangshan, dipankar,
Andrew Morton, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar,
jacob.jun.pan
On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
> On Thu, Feb 25, 2016 at 04:13:11PM +1100, Ross Green wrote:
> > On Wed, Feb 24, 2016 at 8:28 AM, Ross Green <rgkernel@gmail.com> wrote:
> > > On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney
> > > <paulmck@linux.vnet.ibm.com> wrote:
>
> [ . . . ]
>
> > >> Still working on getting decent traces...
>
> And I might have succeeded, see below.
>
> > >>
> > >> Thanx, Paul
> > >>
> > >
> > > G'day all,
> > >
> > > Here is another dmesg output for 4.5-rc5 showing another rcu_preempt stall.
> > > This one appeared after only a day of running. CONFIG_DEBUG_TIMING is
> > > turned on, but can't see any output that shows from this.
> > >
> > > Again testing as before,
> > >
> > > Boot, run a series of small benchmarks, then just let the system be
> > > and idle away.
> > >
> > > I notice in the stack trace there is mention of hrtimer_run_queues and
> > > hrtimer_interrupt.
> > >
> > > Anyway, leave this for a few more eyes to look at.
> > >
> > > Open to any other suggestions of things to test.
> > >
> > > Regards,
> > >
> > > Ross Green
> >
> >
> > G'day Paul,
> >
> > I left the pandaboard running and captured another stall.
> >
> > the attachment is the dmesg output.
> >
> > Again there is no apparent output from any CONFIG_DEBUG_TIMING so I
> > assume there is nothing happening there.
>
> I agree, looks like this is not due to time skew.
>
> > I just saw the updates for 4.6 RCU code.
> > Is the patch in [PATCH tip/core/rcu 04/13] valid here?
>
> I doubt that it will help, but you never know.
>
> > do you want me try the new patch set with this configuration?
>
> Even better would be to try Daniel Wagner's swait patchset. I have
> attached them in UNIX mbox format, or you can get them from the
> -tip tree.
>
> And I -finally- got some tracing that -might- be useful. The dmesg, all
> 67MB of it, is here:
>
> http://www.rdrop.com/~paulmck/submission/console.2016.02.23a.log
>
> This failure mode is less likely to happen, and looks a bit different
> than the ones that I was seeing before enabling tracing. Then, an
> additional wakeup would actually wake the task up. In contrast, with
> tracing enabled, the RCU grace-period kthread goes into "teenager mode",
> refusing to wake up despite repeated attempts. However, this might
> be a side-effect of the ftrace dump.
>
> On line 525,132, we see that the rcu_preempt grace-period kthread has
> been starved for 1,188,154 jiffies, or about 20 minutes. This seems
> unlikely... The kthread is waiting for no more than a three-jiffy
> timeout ("RCU_GP_WAIT_FQS(3)") and is in TASK_INTERRUPTIBLE state
> ("0x1").
We're seeing a similar stall (~60 seconds) on an x86 development system
here. Any luck tracking down the cause of this? If not, any
suggestions for traces that might be helpful?
- Josh Triplett
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-18 21:00 ` Josh Triplett
@ 2016-03-18 23:56 ` Paul E. McKenney
2016-03-21 16:22 ` Jacob Pan
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-18 23:56 UTC (permalink / raw)
To: Josh Triplett
Cc: Ross Green, Mathieu Desnoyers, John Stultz, Thomas Gleixner,
Peter Zijlstra, lkml, Ingo Molnar, Lai Jiangshan, dipankar,
Andrew Morton, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar,
jacob.jun.pan
On Fri, Mar 18, 2016 at 02:00:11PM -0700, Josh Triplett wrote:
> On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
> > On Thu, Feb 25, 2016 at 04:13:11PM +1100, Ross Green wrote:
> > > On Wed, Feb 24, 2016 at 8:28 AM, Ross Green <rgkernel@gmail.com> wrote:
> > > > On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney
> > > > <paulmck@linux.vnet.ibm.com> wrote:
> >
> > [ . . . ]
> >
> > > >> Still working on getting decent traces...
> >
> > And I might have succeeded, see below.
> >
> > > >>
> > > >> Thanx, Paul
> > > >>
> > > >
> > > > G'day all,
> > > >
> > > > Here is another dmesg output for 4.5-rc5 showing another rcu_preempt stall.
> > > > This one appeared after only a day of running. CONFIG_DEBUG_TIMING is
> > > > turned on, but can't see any output that shows from this.
> > > >
> > > > Again testing as before,
> > > >
> > > > Boot, run a series of small benchmarks, then just let the system be
> > > > and idle away.
> > > >
> > > > I notice in the stack trace there is mention of hrtimer_run_queues and
> > > > hrtimer_interrupt.
> > > >
> > > > Anyway, leave this for a few more eyes to look at.
> > > >
> > > > Open to any other suggestions of things to test.
> > > >
> > > > Regards,
> > > >
> > > > Ross Green
> > >
> > >
> > > G'day Paul,
> > >
> > > I left the pandaboard running and captured another stall.
> > >
> > > the attachment is the dmesg output.
> > >
> > > Again there is no apparent output from any CONFIG_DEBUG_TIMING so I
> > > assume there is nothing happening there.
> >
> > I agree, looks like this is not due to time skew.
> >
> > > I just saw the updates for 4.6 RCU code.
> > > Is the patch in [PATCH tip/core/rcu 04/13] valid here?
> >
> > I doubt that it will help, but you never know.
> >
> > > do you want me try the new patch set with this configuration?
> >
> > Even better would be to try Daniel Wagner's swait patchset. I have
> > attached them in UNIX mbox format, or you can get them from the
> > -tip tree.
> >
> > And I -finally- got some tracing that -might- be useful. The dmesg, all
> > 67MB of it, is here:
> >
> > http://www.rdrop.com/~paulmck/submission/console.2016.02.23a.log
> >
> > This failure mode is less likely to happen, and looks a bit different
> > than the ones that I was seeing before enabling tracing. Then, an
> > additional wakeup would actually wake the task up. In contrast, with
> > tracing enabled, the RCU grace-period kthread goes into "teenager mode",
> > refusing to wake up despite repeated attempts. However, this might
> > be a side-effect of the ftrace dump.
> >
> > On line 525,132, we see that the rcu_preempt grace-period kthread has
> > been starved for 1,188,154 jiffies, or about 20 minutes. This seems
> > unlikely... The kthread is waiting for no more than a three-jiffy
> > timeout ("RCU_GP_WAIT_FQS(3)") and is in TASK_INTERRUPTIBLE state
> > ("0x1").
>
> We're seeing a similar stall (~60 seconds) on an x86 development system
> here. Any luck tracking down the cause of this? If not, any
> suggestions for traces that might be helpful?
The dmesg containing the stall, the kernel version, and the .config would
be helpful! Working on a torture test specific to this bug...
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-18 23:56 ` Paul E. McKenney
@ 2016-03-21 16:22 ` Jacob Pan
2016-03-21 17:26 ` Paul E. McKenney
2016-03-27 20:54 ` Peter Zijlstra
0 siblings, 2 replies; 79+ messages in thread
From: Jacob Pan @ 2016-03-21 16:22 UTC (permalink / raw)
To: paulmck
Cc: Josh Triplett, Ross Green, Mathieu Desnoyers, John Stultz,
Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar, jacob.jun.pan, Chatre, Reinette
On Fri, 18 Mar 2016 16:56:41 -0700
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
> On Fri, Mar 18, 2016 at 02:00:11PM -0700, Josh Triplett wrote:
> > On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
> > > On Thu, Feb 25, 2016 at 04:13:11PM +1100, Ross Green wrote:
> > > > On Wed, Feb 24, 2016 at 8:28 AM, Ross Green
> > > > <rgkernel@gmail.com> wrote:
> > > > > On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney
> > > > > <paulmck@linux.vnet.ibm.com> wrote:
> > >
> > > [ . . . ]
> > >
> > > > >> Still working on getting decent traces...
> > >
> > > And I might have succeeded, see below.
> > >
> > > > >>
> > > > >> Thanx,
> > > > >> Paul
> > > > >>
> > > > >
> > > > > G'day all,
> > > > >
> > > > > Here is another dmesg output for 4.5-rc5 showing another
> > > > > rcu_preempt stall. This one appeared after only a day of
> > > > > running. CONFIG_DEBUG_TIMING is turned on, but can't see any
> > > > > output that shows from this.
> > > > >
> > > > > Again testing as before,
> > > > >
> > > > > Boot, run a series of small benchmarks, then just let the
> > > > > system be and idle away.
> > > > >
> > > > > I notice in the stack trace there is mention of
> > > > > hrtimer_run_queues and hrtimer_interrupt.
> > > > >
> > > > > Anyway, leave this for a few more eyes to look at.
> > > > >
> > > > > Open to any other suggestions of things to test.
> > > > >
> > > > > Regards,
> > > > >
> > > > > Ross Green
> > > >
> > > >
> > > > G'day Paul,
> > > >
> > > > I left the pandaboard running and captured another stall.
> > > >
> > > > the attachment is the dmesg output.
> > > >
> > > > Again there is no apparent output from any CONFIG_DEBUG_TIMING
> > > > so I assume there is nothing happening there.
> > >
> > > I agree, looks like this is not due to time skew.
> > >
> > > > I just saw the updates for 4.6 RCU code.
> > > > Is the patch in [PATCH tip/core/rcu 04/13] valid here?
> > >
> > > I doubt that it will help, but you never know.
> > >
> > > > do you want me try the new patch set with this configuration?
> > >
> > > Even better would be to try Daniel Wagner's swait patchset. I
> > > have attached them in UNIX mbox format, or you can get them from
> > > the -tip tree.
> > >
> > > And I -finally- got some tracing that -might- be useful. The
> > > dmesg, all 67MB of it, is here:
> > >
> > > http://www.rdrop.com/~paulmck/submission/console.2016.02.23a.log
> > >
> > > This failure mode is less likely to happen, and looks a bit
> > > different than the ones that I was seeing before enabling
> > > tracing. Then, an additional wakeup would actually wake the task
> > > up. In contrast, with tracing enabled, the RCU grace-period
> > > kthread goes into "teenager mode", refusing to wake up despite
> > > repeated attempts. However, this might be a side-effect of the
> > > ftrace dump.
> > >
> > > On line 525,132, we see that the rcu_preempt grace-period kthread
> > > has been starved for 1,188,154 jiffies, or about 20 minutes.
> > > This seems unlikely... The kthread is waiting for no more than a
> > > three-jiffy timeout ("RCU_GP_WAIT_FQS(3)") and is in
> > > TASK_INTERRUPTIBLE state ("0x1").
> >
> > We're seeing a similar stall (~60 seconds) on an x86 development
> > system here. Any luck tracking down the cause of this? If not, any
> > suggestions for traces that might be helpful?
>
> The dmesg containing the stall, the kernel version, and the .config
> would be helpful! Working on a torture test specific to this bug...
>
> Thanx, Paul
>
+Reinette, she has the system that can reproduce the issue. I
believe she is having some other problems with it at the moment. But
the .config should be available. Version is v4.5.
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-21 16:22 ` Jacob Pan
@ 2016-03-21 17:26 ` Paul E. McKenney
2016-03-22 16:35 ` Chatre, Reinette
2016-03-27 20:54 ` Peter Zijlstra
1 sibling, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-21 17:26 UTC (permalink / raw)
To: Jacob Pan
Cc: Josh Triplett, Ross Green, Mathieu Desnoyers, John Stultz,
Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar, Chatre, Reinette
On Mon, Mar 21, 2016 at 09:22:30AM -0700, Jacob Pan wrote:
> On Fri, 18 Mar 2016 16:56:41 -0700
> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
> > On Fri, Mar 18, 2016 at 02:00:11PM -0700, Josh Triplett wrote:
> > > On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
[ . . . ]
> > > We're seeing a similar stall (~60 seconds) on an x86 development
> > > system here. Any luck tracking down the cause of this? If not, any
> > > suggestions for traces that might be helpful?
> >
> > The dmesg containing the stall, the kernel version, and the .config
> > would be helpful! Working on a torture test specific to this bug...
> >
> > Thanx, Paul
> >
> +Reinette, she has the system that can reproduce the issue. I
> believe she is having some other problems with it at the moment. But
> the .config should be available. Version is v4.5.
A couple of additional questions:
1. Is the test running on bare metal or virtualized? If the
latter, what is the host?
2. Does the workload involve CPU hotplug?
3. Are you seeing things like this in dmesg?
"rcu_preempt kthread starved for 21033 jiffies"
"rcu_sched kthread starved for 32103 jiffies"
"rcu_bh kthread starved for 84031 jiffies"
If not, you are probably facing some other bug, and should
proceed debugging as described in Documentation/RCU/stallwarn.txt.
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* RE: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-21 17:26 ` Paul E. McKenney
@ 2016-03-22 16:35 ` Chatre, Reinette
2016-03-22 17:40 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Chatre, Reinette @ 2016-03-22 16:35 UTC (permalink / raw)
To: paulmck, Jacob Pan
Cc: Josh Triplett, Ross Green, Mathieu Desnoyers, John Stultz,
Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 3726 bytes --]
Hi Paul,
On 2016-03-21, Paul E. McKenney wrote:
> On Mon, Mar 21, 2016 at 09:22:30AM -0700, Jacob Pan wrote:
>> On Fri, 18 Mar 2016 16:56:41 -0700
>> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
>>> On Fri, Mar 18, 2016 at 02:00:11PM -0700, Josh Triplett wrote:
>>>> On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
>
> [ . . . ]
>
>>>> We're seeing a similar stall (~60 seconds) on an x86 development
>>>> system here. Any luck tracking down the cause of this? If not, any
>>>> suggestions for traces that might be helpful?
>>>
>>> The dmesg containing the stall, the kernel version, and the .config
>>> would be helpful! Working on a torture test specific to this bug...
>>>
>>> Thanx, Paul
>>>
>> +Reinette, she has the system that can reproduce the issue. I
>> believe she is having some other problems with it at the moment. But
>> the .config should be available. Version is v4.5.
>
> A couple of additional questions:
>
> 1. Is the test running on bare metal or virtualized? If the
> latter, what is the host?
Bare metal.
> 2. Does the workload involve CPU hotplug?
No.
> 3. Are you seeing things like this in dmesg?
>
> "rcu_preempt kthread starved for 21033 jiffies"
> "rcu_sched kthread starved for 32103 jiffies"
> "rcu_bh kthread starved for 84031 jiffies"
>
> If not, you are probably facing some other bug, and should
> proceed debugging as described in Documentation/RCU/stallwarn.txt.
Below is a sample of what I see as captured with v4.5. The kernel configuration is attached.
[ 135.456197] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 135.457729] 3-...: (0 ticks this GP) idle=722/0/0 softirq=5532/5532 fqs=0
[ 135.459604] (detected by 2, t=60004 jiffies, g=2105, c=2104, q=165)
[ 135.461318] Task dump for CPU 3:
[ 135.461321] swapper/3 R running task 0 0 1 0x00200000
[ 135.461325] 00000078560040e5 ffff88017846fed0 ffffffff818af2cc ffff880100000000
[ 135.461330] 0000000600000003 ffff880178470000 ffff880072f32200 ffffffff822dcec0
[ 135.461334] ffff88017846c000 ffff88017846c000 ffff88017846fee0 ffffffff818af517
[ 135.461338] Call Trace:
[ 135.461345] [<ffffffff818af2cc>] ? cpuidle_enter_state+0xfc/0x310
[ 135.461349] [<ffffffff818af517>] ? cpuidle_enter+0x17/0x20
[ 135.461353] [<ffffffff811515aa>] ? call_cpuidle+0x2a/0x40
[ 135.461355] [<ffffffff8115197d>] ? cpu_startup_entry+0x28d/0x360
[ 135.461360] [<ffffffff8108c874>] ? start_secondary+0x114/0x140
[ 135.461365] rcu_preempt kthread starved for 60004 jiffies! g2105 c2104 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[ 135.463965] rcu_preempt S ffff88017844fd68 0 7 2 0x00000000
[ 135.463969] ffff88017844fd68 ffff88017dd8cc80 ffff880177ff0000 ffff880178443b80
[ 135.463973] ffff880178450000 ffff88017844fda0 ffff88017dd8cc80 ffff88017dd8cc80
[ 135.463977] 0000000000000003 ffff88017844fd80 ffffffff81ab031f 0000000100031504
[ 135.463981] Call Trace:
[ 135.463986] [<ffffffff81ab031f>] schedule+0x3f/0xa0
[ 135.463989] [<ffffffff81ab42d7>] schedule_timeout+0x127/0x270
[ 135.463993] [<ffffffff81171a50>] ? detach_if_pending+0x120/0x120
[ 135.463997] [<ffffffff8116da5d>] rcu_gp_kthread+0x6bd/0xa30
[ 135.464000] [<ffffffff81151390>] ? wake_atomic_t_function+0x70/0x70
[ 135.464003] [<ffffffff8116d3a0>] ? force_qs_rnp+0x1b0/0x1b0
[ 135.464006] [<ffffffff8112f846>] kthread+0xe6/0x100
[ 135.464009] [<ffffffff8112f760>] ? kthread_worker_fn+0x190/0x190
[ 135.464012] [<ffffffff81ab5c0f>] ret_from_fork+0x3f/0x70
[ 135.464015] [<ffffffff8112f760>] ? kthread_worker_fn+0x190/0x190
Thank you very much
Reinette
[-- Attachment #2: config --]
[-- Type: application/octet-stream, Size: 153808 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 4.5.0 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11"
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_FHANDLE=y
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
#
# CPU/Task time and stats accounting
#
# CONFIG_TICK_CPU_ACCOUNTING is not set
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
# CONFIG_TASK_XACCT is not set
#
# RCU Subsystem
#
CONFIG_PREEMPT_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
# CONFIG_TASKS_RCU is not set
CONFIG_RCU_STALL_COMMON=y
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_EXPEDITE_BOOT is not set
CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=21
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_ARCH_SUPPORTS_INT128=y
# CONFIG_NUMA_BALANCING is not set
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
CONFIG_MEMCG=y
CONFIG_MEMCG_SWAP=y
CONFIG_MEMCG_SWAP_ENABLED=y
CONFIG_BLK_CGROUP=y
# CONFIG_DEBUG_BLK_CGROUP is not set
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
# CONFIG_CGROUP_PIDS is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_DEBUG=y
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_SYSFS_DEPRECATED=y
# CONFIG_SYSFS_DEPRECATED_V2 is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_BPF=y
CONFIG_EXPERT=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
# CONFIG_BPF_SYSCALL is not set
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
# CONFIG_USERFAULTFD is not set
CONFIG_PCI_QUIRKS=y
CONFIG_MEMBARRIER=y
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y
#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
CONFIG_COMPAT_BRK=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_SLUB_CPU_PARTIAL=y
# CONFIG_SYSTEM_DATA_VERIFICATION is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_KEXEC_CORE=y
CONFIG_OPROFILE=y
# CONFIG_OPROFILE_EVENT_MULTIPLEX is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
CONFIG_KPROBES=y
# CONFIG_JUMP_LABEL is not set
CONFIG_KPROBES_ON_FTRACE=y
CONFIG_UPROBES=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_HAVE_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_CC_STACKPROTECTOR_NONE=y
# CONFIG_CC_STACKPROTECTOR_REGULAR is not set
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_COPY_THREAD_TLS=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLK_DEV_BSGLIB=y
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_CMDLINE_PARSER is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_CFQ_GROUP_IOSCHED is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_FREEZER=y
#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_FAST_FEATURE_TESTS=y
# CONFIG_X86_X2APIC is not set
CONFIG_X86_MPPARSE=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_VSMP is not set
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_MID is not set
CONFIG_X86_INTEL_LPSS=y
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=y
CONFIG_IOSF_MBI_DEBUG=y
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
# CONFIG_PARAVIRT_SPINLOCKS is not set
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
# CONFIG_KVM_DEBUG_FS is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
CONFIG_NO_BOOTMEM=y
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
CONFIG_MCORE2=y
# CONFIG_MATOM is not set
# CONFIG_GENERIC_CPU is not set
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_P6_NOP=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_GART_IOMMU is not set
# CONFIG_CALGARY_IOMMU is not set
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS=64
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_X86_MCE_THRESHOLD=y
# CONFIG_X86_MCE_INJECT is not set
CONFIG_X86_THERMAL_VECTOR=y
# CONFIG_VM86 is not set
CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
CONFIG_I8K=m
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
CONFIG_MICROCODE_AMD=y
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_X86_DIRECT_GBPAGES=y
CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
# CONFIG_NUMA_EMU is not set
CONFIG_NODES_SHIFT=6
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
# CONFIG_MOVABLE_NODE is not set
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_MEMORY_FAILURE is not set
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
# CONFIG_CLEANCACHE is not set
CONFIG_FRONTSWAP=y
# CONFIG_CMA is not set
# CONFIG_ZSWAP is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
CONFIG_ZSMALLOC=y
# CONFIG_PGTABLE_MAPPING is not set
# CONFIG_ZSMALLOC_STAT is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT=y
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_FRAME_VECTOR=y
CONFIG_X86_PMEM_LEGACY_DEVICE=y
CONFIG_X86_PMEM_LEGACY=m
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
# CONFIG_X86_INTEL_MPX is not set
CONFIG_EFI=y
CONFIG_EFI_STUB=y
CONFIG_EFI_MIXED=y
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_KEXEC_FILE=y
# CONFIG_KEXEC_VERIFY_SIG is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x100000
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_LEGACY_VSYSCALL_NATIVE is not set
CONFIG_LEGACY_VSYSCALL_EMULATE=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
CONFIG_HAVE_LIVEPATCH=y
# CONFIG_LIVEPATCH is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
#
# Power management and ACPI options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_SUSPEND_SKIP_SYNC is not set
# CONFIG_HIBERNATION is not set
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
CONFIG_PM_WAKELOCKS=y
CONFIG_PM_WAKELOCKS_LIMIT=100
CONFIG_PM_WAKELOCKS_GC=y
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
CONFIG_DPM_WATCHDOG=y
CONFIG_DPM_WATCHDOG_TIMEOUT=12
# CONFIG_PM_TRACE_RTC is not set
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SLEEP=y
# CONFIG_ACPI_PROCFS_POWER is not set
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
CONFIG_ACPI_EC_DEBUGFS=y
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
# CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=m
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_BGRT is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
CONFIG_ACPI_NFIT=m
# CONFIG_ACPI_NFIT_DEBUG is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
# CONFIG_ACPI_APEI_GHES is not set
# CONFIG_ACPI_APEI_PCIEAER is not set
# CONFIG_ACPI_APEI_EINJ is not set
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
CONFIG_ACPI_EXTLOG=m
# CONFIG_PMIC_OPREGION is not set
# CONFIG_SFI is not set
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
#
# CPU frequency scaling drivers
#
CONFIG_X86_INTEL_PSTATE=y
# CONFIG_X86_PCC_CPUFREQ is not set
CONFIG_X86_ACPI_CPUFREQ=y
CONFIG_X86_ACPI_CPUFREQ_CPB=y
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_P4_CLOCKMOD is not set
#
# shared options
#
# CONFIG_X86_SPEEDSTEP_LIB is not set
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
CONFIG_INTEL_IDLE=y
#
# Memory power savings
#
# CONFIG_I7300_IDLE is not set
#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_DOMAINS=y
# CONFIG_PCI_CNB20LE_QUIRK is not set
CONFIG_PCIEPORTBUS=y
# CONFIG_HOTPLUG_PCI_PCIE is not set
CONFIG_PCIEAER=y
# CONFIG_PCIE_ECRC is not set
# CONFIG_PCIEAER_INJECT is not set
CONFIG_PCIEASPM=y
# CONFIG_PCIEASPM_DEBUG is not set
# CONFIG_PCIEASPM_DEFAULT is not set
CONFIG_PCIEASPM_POWERSAVE=y
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCI_BUS_ADDR_T_64BIT=y
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
# CONFIG_PCI_DEBUG is not set
CONFIG_PCI_REALLOC_ENABLE_AUTO=y
# CONFIG_PCI_STUB is not set
CONFIG_HT_IRQ=y
CONFIG_PCI_ATS=y
CONFIG_PCI_IOV=y
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_PCI_LABEL=y
#
# PCI host controller drivers
#
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
# CONFIG_PCCARD is not set
CONFIG_HOTPLUG_PCI=y
# CONFIG_HOTPLUG_PCI_ACPI is not set
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set
# CONFIG_RAPIDIO is not set
# CONFIG_X86_SYSFB is not set
#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
# CONFIG_IA32_EMULATION is not set
# CONFIG_X86_X32 is not set
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_PMC_ATOM=y
# CONFIG_VMD is not set
CONFIG_NET=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_IPCOMP=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_FIB_TRIE_STATS is not set
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NET_IPIP=m
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=y
CONFIG_IP_MROUTE=y
# CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_IPVTI is not set
CONFIG_NET_UDP_TUNNEL=m
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=y
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_INET_UDP_DIAG is not set
# CONFIG_INET_DIAG_DESTROY is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
# CONFIG_IPV6_ILA is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_INET6_XFRM_MODE_TRANSPORT=y
CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=y
CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=y
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
# CONFIG_IPV6_GRE is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
# CONFIG_NETLABEL is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=m
#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_NETLINK=m
# CONFIG_NETFILTER_NETLINK_ACCT is not set
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_MARK=y
# CONFIG_NF_CONNTRACK_ZONES is not set
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
# CONFIG_NF_CONNTRACK_TIMEOUT is not set
# CONFIG_NF_CONNTRACK_TIMESTAMP is not set
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CT_PROTO_GRE=m
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
# CONFIG_NF_CONNTRACK_SNMP is not set
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
# CONFIG_NF_CT_NETLINK_TIMEOUT is not set
# CONFIG_NETFILTER_NETLINK_GLUE_CT is not set
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_NF_NAT_PROTO_UDPLITE=m
CONFIG_NF_NAT_PROTO_SCTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_SIP=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_REDIRECT=m
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=m
#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m
#
# Xtables targets
#
# CONFIG_NETFILTER_XT_TARGET_CHECKSUM is not set
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
# CONFIG_NETFILTER_XT_TARGET_LED is not set
# CONFIG_NETFILTER_XT_TARGET_LOG is not set
CONFIG_NETFILTER_XT_TARGET_MARK=m
# CONFIG_NETFILTER_XT_NAT is not set
CONFIG_NETFILTER_XT_TARGET_NETMAP=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_REDIRECT=m
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_TPROXY is not set
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
#
# Xtables matches
#
# CONFIG_NETFILTER_XT_MATCH_ADDRTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_CLUSTER is not set
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
# CONFIG_NETFILTER_XT_MATCH_CONNLABEL is not set
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
# CONFIG_NETFILTER_XT_MATCH_CPU is not set
CONFIG_NETFILTER_XT_MATCH_DCCP=m
# CONFIG_NETFILTER_XT_MATCH_DEVGROUP is not set
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
# CONFIG_NETFILTER_XT_MATCH_OSF is not set
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
# CONFIG_NETFILTER_XT_MATCH_PHYSDEV is not set
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
CONFIG_NETFILTER_XT_MATCH_SCTP=m
# CONFIG_NETFILTER_XT_MATCH_SOCKET is not set
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set
#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
# CONFIG_NF_DUP_IPV4 is not set
# CONFIG_NF_LOG_ARP is not set
# CONFIG_NF_LOG_IPV4 is not set
CONFIG_NF_REJECT_IPV4=m
CONFIG_NF_NAT_IPV4=m
# CONFIG_NF_NAT_MASQUERADE_IPV4 is not set
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
# CONFIG_IP_NF_MATCH_RPFILTER is not set
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
# CONFIG_IP_NF_TARGET_SYNPROXY is not set
# CONFIG_IP_NF_NAT is not set
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
# CONFIG_IP_NF_SECURITY is not set
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV6 is not set
# CONFIG_NF_CONNTRACK_IPV6 is not set
# CONFIG_NF_DUP_IPV6 is not set
# CONFIG_NF_REJECT_IPV6 is not set
# CONFIG_NF_LOG_IPV6 is not set
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
# CONFIG_IP6_NF_MATCH_RPFILTER is not set
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
CONFIG_IP6_NF_FILTER=m
# CONFIG_IP6_NF_TARGET_REJECT is not set
# CONFIG_IP6_NF_TARGET_SYNPROXY is not set
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
# CONFIG_IP6_NF_SECURITY is not set
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
# CONFIG_IP_DCCP is not set
CONFIG_IP_SCTP=m
# CONFIG_NET_SCTPPROBE is not set
# CONFIG_SCTP_DBG_OBJCNT is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1 is not set
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
# CONFIG_SCTP_COOKIE_HMAC_SHA1 is not set
# CONFIG_RDS is not set
CONFIG_TIPC=m
CONFIG_TIPC_MEDIA_UDP=y
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
CONFIG_STP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
# CONFIG_BRIDGE_VLAN_FILTERING is not set
CONFIG_HAVE_NET_DSA=y
CONFIG_VLAN_8021Q=m
# CONFIG_VLAN_8021Q_GVRP is not set
# CONFIG_VLAN_8021Q_MVRP is not set
# CONFIG_DECNET is not set
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y
#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
# CONFIG_NET_SCH_MULTIQ is not set
CONFIG_NET_SCH_RED=m
# CONFIG_NET_SCH_SFB is not set
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_NETEM=m
# CONFIG_NET_SCH_DRR is not set
# CONFIG_NET_SCH_MQPRIO is not set
# CONFIG_NET_SCH_CHOKE is not set
# CONFIG_NET_SCH_QFQ is not set
CONFIG_NET_SCH_CODEL=m
# CONFIG_NET_SCH_FQ_CODEL is not set
# CONFIG_NET_SCH_FQ is not set
# CONFIG_NET_SCH_HHF is not set
# CONFIG_NET_SCH_PIE is not set
CONFIG_NET_SCH_INGRESS=m
# CONFIG_NET_SCH_PLUG is not set
#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=y
# CONFIG_NET_CLS_TCINDEX is not set
# CONFIG_NET_CLS_ROUTE4 is not set
# CONFIG_NET_CLS_FW is not set
CONFIG_NET_CLS_U32=y
# CONFIG_CLS_U32_PERF is not set
# CONFIG_CLS_U32_MARK is not set
# CONFIG_NET_CLS_RSVP is not set
# CONFIG_NET_CLS_RSVP6 is not set
# CONFIG_NET_CLS_FLOW is not set
CONFIG_NET_CLS_CGROUP=y
# CONFIG_NET_CLS_BPF is not set
# CONFIG_NET_CLS_FLOWER is not set
# CONFIG_NET_EMATCH is not set
CONFIG_NET_CLS_ACT=y
# CONFIG_NET_ACT_POLICE is not set
# CONFIG_NET_ACT_GACT is not set
CONFIG_NET_ACT_MIRRED=m
# CONFIG_NET_ACT_IPT is not set
# CONFIG_NET_ACT_NAT is not set
# CONFIG_NET_ACT_PEDIT is not set
# CONFIG_NET_ACT_SIMP is not set
# CONFIG_NET_ACT_SKBEDIT is not set
# CONFIG_NET_ACT_CSUM is not set
# CONFIG_NET_ACT_VLAN is not set
# CONFIG_NET_ACT_BPF is not set
# CONFIG_NET_ACT_CONNMARK is not set
# CONFIG_NET_CLS_IND is not set
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
CONFIG_SOCK_CGROUP_DATA=y
# CONFIG_CGROUP_NET_PRIO is not set
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_BPF_JIT=y
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
CONFIG_NET_PKTGEN=m
# CONFIG_NET_TCPPROBE is not set
# CONFIG_NET_DROP_MONITOR is not set
# CONFIG_HAMRADIO is not set
CONFIG_CAN=y
CONFIG_CAN_RAW=y
CONFIG_CAN_BCM=y
CONFIG_CAN_GW=y
#
# CAN Device Drivers
#
# CONFIG_CAN_VCAN is not set
# CONFIG_CAN_SLCAN is not set
CONFIG_CAN_DEV=y
CONFIG_CAN_CALC_BITTIMING=y
# CONFIG_CAN_LEDS is not set
# CONFIG_CAN_SJA1000 is not set
# CONFIG_CAN_C_CAN is not set
# CONFIG_CAN_M_CAN is not set
# CONFIG_CAN_CC770 is not set
#
# CAN SPI interfaces
#
# CONFIG_CAN_MCP251X is not set
#
# CAN USB interfaces
#
# CONFIG_CAN_EMS_USB is not set
# CONFIG_CAN_ESD_USB2 is not set
# CONFIG_CAN_GS_USB is not set
# CONFIG_CAN_KVASER_USB is not set
# CONFIG_CAN_PEAK_USB is not set
# CONFIG_CAN_8DEV_USB is not set
# CONFIG_CAN_SOFTING is not set
# CONFIG_CAN_DEBUG_DEVICES is not set
# CONFIG_IRDA is not set
CONFIG_BT=y
CONFIG_BT_BREDR=y
CONFIG_BT_RFCOMM=y
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=y
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=y
CONFIG_BT_HS=y
CONFIG_BT_LE=y
# CONFIG_BT_SELFTEST is not set
CONFIG_BT_DEBUGFS=y
#
# Bluetooth device drivers
#
CONFIG_BT_INTEL=y
CONFIG_BT_BCM=y
CONFIG_BT_RTL=y
CONFIG_BT_HCIBTUSB=y
CONFIG_BT_HCIBTUSB_BCM=y
CONFIG_BT_HCIBTUSB_RTL=y
CONFIG_BT_HCIBTSDIO=m
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
# CONFIG_BT_HCIUART_ATH3K is not set
CONFIG_BT_HCIUART_LL=y
CONFIG_BT_HCIUART_3WIRE=y
# CONFIG_BT_HCIUART_INTEL is not set
# CONFIG_BT_HCIUART_BCM is not set
# CONFIG_BT_HCIUART_QCA is not set
CONFIG_BT_HCIBCM203X=m
CONFIG_BT_HCIBPA10X=m
CONFIG_BT_HCIBFUSB=m
CONFIG_BT_HCIVHCI=m
CONFIG_BT_MRVL=m
CONFIG_BT_MRVL_SDIO=m
CONFIG_BT_ATH3K=m
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
# CONFIG_CFG80211_CERTIFICATION_ONUS is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
CONFIG_CFG80211_WEXT=y
CONFIG_CFG80211_WEXT_EXPORT=y
CONFIG_LIB80211=m
CONFIG_LIB80211_CRYPT_WEP=m
CONFIG_LIB80211_CRYPT_CCMP=m
CONFIG_LIB80211_CRYPT_TKIP=m
# CONFIG_LIB80211_DEBUG is not set
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
# CONFIG_MAC80211_RC_MINSTREL_VHT is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_WIMAX is not set
CONFIG_RFKILL=y
CONFIG_RFKILL_LEDS=y
# CONFIG_RFKILL_INPUT is not set
CONFIG_RFKILL_GPIO=m
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
CONFIG_NFC=y
# CONFIG_NFC_DIGITAL is not set
CONFIG_NFC_NCI=m
# CONFIG_NFC_NCI_SPI is not set
# CONFIG_NFC_NCI_UART is not set
CONFIG_NFC_HCI=m
CONFIG_NFC_SHDLC=y
#
# Near Field Communication (NFC) devices
#
CONFIG_NFC_PN533=m
CONFIG_NFC_MEI_PHY=m
# CONFIG_NFC_SIM is not set
# CONFIG_NFC_FDP is not set
CONFIG_NFC_PN544=m
CONFIG_NFC_PN544_I2C=m
CONFIG_NFC_PN544_MEI=m
CONFIG_NFC_MICROREAD=m
CONFIG_NFC_MICROREAD_I2C=m
CONFIG_NFC_MICROREAD_MEI=m
# CONFIG_NFC_MRVL_USB is not set
# CONFIG_NFC_ST21NFCA_I2C is not set
# CONFIG_NFC_ST_NCI_I2C is not set
# CONFIG_NFC_ST_NCI_SPI is not set
# CONFIG_NFC_NXP_NCI is not set
# CONFIG_NFC_S3FWRN5_I2C is not set
# CONFIG_LWTUNNEL is not set
CONFIG_HAVE_BPF_JIT=y
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
CONFIG_WANT_DEV_COREDUMP=y
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_REGMAP_SPI=m
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_FENCE_TRACE is not set
#
# Bus devices
#
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
# CONFIG_PARPORT_SERIAL is not set
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_GSC is not set
# CONFIG_PARPORT_AX88796 is not set
# CONFIG_PARPORT_1284 is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_FD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_ZRAM is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
CONFIG_BLK_DEV_CRYPTOLOOP=m
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_SKD is not set
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_VIRTIO_BLK=y
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set
CONFIG_BLK_DEV_NVME=y
# CONFIG_BLK_DEV_NVME_SCSI is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_TI_DAC7512 is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_BMP085_SPI is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
CONFIG_EEPROM_93CX6=m
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_CB710_CORE is not set
#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
CONFIG_ALTERA_STAPL=m
CONFIG_INTEL_MEI=m
CONFIG_INTEL_MEI_ME=m
CONFIG_INTEL_MEI_TXE=m
# CONFIG_VMWARE_VMCI is not set
#
# Intel MIC Bus Driver
#
# CONFIG_INTEL_MIC_BUS is not set
#
# SCIF Bus Driver
#
# CONFIG_SCIF_BUS is not set
#
# Intel MIC Host Driver
#
#
# Intel MIC Card Driver
#
#
# SCIF Driver
#
#
# Intel MIC Coprocessor State Management (COSM) Drivers
#
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_CXL_BASE is not set
# CONFIG_CXL_KERNEL_API is not set
# CONFIG_CXL_EEH is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y
#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
# CONFIG_IDE_GD_ATAPI is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEACPI is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y
#
# IDE chipset support/bugfixes
#
# CONFIG_IDE_GENERIC is not set
# CONFIG_BLK_DEV_PLATFORM is not set
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y
#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_ATIIXP is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
CONFIG_BLK_DEV_PIIX=y
# CONFIG_BLK_DEV_IT8172 is not set
# CONFIG_BLK_DEV_IT8213 is not set
# CONFIG_BLK_DEV_IT821X is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_BLK_DEV_TC86C001 is not set
CONFIG_BLK_DEV_IDEDMA=y
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
# CONFIG_SCSI_MQ_DEFAULT is not set
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
# CONFIG_SCSI_ISCSI_ATTRS is not set
CONFIG_SCSI_SAS_ATTRS=m
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_VMWARE_PVSCSI is not set
# CONFIG_LIBFC is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_ISCI is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_BFA_FC is not set
CONFIG_SCSI_VIRTIO=m
# CONFIG_SCSI_CHELSIO_FCOE is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
CONFIG_SATA_ZPODD=y
CONFIG_SATA_PMP=y
#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y
#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=y
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
CONFIG_PATA_SCH=y
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
CONFIG_PATA_MPIIX=y
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_PLATFORM is not set
# CONFIG_PATA_RZ1000 is not set
#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
CONFIG_ATA_GENERIC=y
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=y
CONFIG_MD_RAID456=y
CONFIG_MD_MULTIPATH=y
CONFIG_MD_FAULTY=y
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_MQ_DEFAULT is not set
CONFIG_DM_DEBUG=y
CONFIG_DM_BUFIO=y
# CONFIG_DM_DEBUG_BLOCK_STACK_TRACING is not set
CONFIG_DM_CRYPT=y
CONFIG_DM_SNAPSHOT=y
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
# CONFIG_DM_ERA is not set
CONFIG_DM_MIRROR=y
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_RAID=m
CONFIG_DM_ZERO=y
CONFIG_DM_MULTIPATH=m
# CONFIG_DM_MULTIPATH_QL is not set
# CONFIG_DM_MULTIPATH_ST is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_UEVENT is not set
# CONFIG_DM_FLAKEY is not set
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
# CONFIG_DM_LOG_WRITES is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
CONFIG_BONDING=m
CONFIG_DUMMY=m
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_IFB is not set
# CONFIG_NET_TEAM is not set
CONFIG_MACVLAN=m
# CONFIG_MACVTAP is not set
# CONFIG_IPVLAN is not set
CONFIG_VXLAN=m
# CONFIG_GENEVE is not set
CONFIG_NETCONSOLE=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=m
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
CONFIG_VIRTIO_NET=y
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set
#
# CAIF transport drivers
#
CONFIG_VHOST_NET=m
CONFIG_VHOST_RING=m
CONFIG_VHOST=m
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
CONFIG_ETHERNET=y
CONFIG_MDIO=m
CONFIG_NET_VENDOR_3COM=y
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMD=y
# CONFIG_AMD8111_ETH is not set
CONFIG_PCNET32=y
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
CONFIG_ATL2=m
# CONFIG_ATL1 is not set
CONFIG_ATL1E=m
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
# CONFIG_NET_VENDOR_AURORA is not set
CONFIG_NET_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
CONFIG_TIGON3=y
# CONFIG_BNX2X is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_THUNDER_NIC_PF is not set
# CONFIG_THUNDER_NIC_VF is not set
# CONFIG_THUNDER_NIC_BGX is not set
# CONFIG_LIQUIDIO is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
# CONFIG_CX_ECAT is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
# CONFIG_NET_TULIP is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_EXAR=y
# CONFIG_S2IO is not set
# CONFIG_VXGE is not set
CONFIG_NET_VENDOR_HP=y
# CONFIG_HP100 is not set
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=y
CONFIG_E1000=y
CONFIG_E1000E=y
CONFIG_IGB=m
CONFIG_IGB_HWMON=y
CONFIG_IGB_DCA=y
CONFIG_IGBVF=m
CONFIG_IXGB=m
CONFIG_IXGBE=m
# CONFIG_IXGBE_VXLAN is not set
CONFIG_IXGBE_HWMON=y
CONFIG_IXGBE_DCA=y
CONFIG_IXGBE_DCB=y
CONFIG_IXGBEVF=m
CONFIG_I40E=m
# CONFIG_I40E_VXLAN is not set
# CONFIG_I40E_DCB is not set
CONFIG_I40EVF=m
# CONFIG_FM10K is not set
CONFIG_NET_VENDOR_I825XX=y
# CONFIG_JME is not set
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROCHIP=y
# CONFIG_ENC28J60 is not set
# CONFIG_ENCX24J600 is not set
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP_NETVF is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_PACKET_ENGINE=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_QLGE is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_QUALCOMM=y
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
CONFIG_8139CP=m
CONFIG_8139TOO=m
CONFIG_8139TOO_PIO=y
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_R8169=m
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
# CONFIG_SFC is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_ALE is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_AQUANTIA_PHY is not set
CONFIG_AT803X_PHY=m
# CONFIG_AMD_PHY is not set
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=m
# CONFIG_TERANETICS_PHY is not set
CONFIG_SMSC_PHY=m
CONFIG_BCM_NET_PHYLIB=m
CONFIG_BROADCOM_PHY=m
# CONFIG_BCM7XXX_PHY is not set
CONFIG_BCM87XX_PHY=m
CONFIG_ICPLUS_PHY=m
CONFIG_REALTEK_PHY=m
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
CONFIG_MICREL_PHY=m
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_FIXED_PHY is not set
CONFIG_MDIO_BITBANG=m
# CONFIG_MDIO_GPIO is not set
# CONFIG_MDIO_OCTEON is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MICREL_KS8995MA is not set
# CONFIG_PLIP is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_SLIP=m
CONFIG_SLHC=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
CONFIG_USB_NET_DRIVERS=y
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
CONFIG_USB_RTL8150=m
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=m
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_AX88179_178A=m
CONFIG_USB_NET_CDCETHER=m
CONFIG_USB_NET_CDC_EEM=m
CONFIG_USB_NET_CDC_NCM=m
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
CONFIG_USB_NET_CDC_MBIM=m
CONFIG_USB_NET_DM9601=m
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
CONFIG_USB_NET_SMSC95XX=m
CONFIG_USB_NET_GL620A=m
CONFIG_USB_NET_NET1080=m
CONFIG_USB_NET_PLUSB=m
CONFIG_USB_NET_MCS7830=m
CONFIG_USB_NET_RNDIS_HOST=m
CONFIG_USB_NET_CDC_SUBSET_ENABLE=m
CONFIG_USB_NET_CDC_SUBSET=m
CONFIG_USB_ALI_M5632=y
CONFIG_USB_AN2720=y
CONFIG_USB_BELKIN=y
CONFIG_USB_ARMLINUX=y
CONFIG_USB_EPSON2888=y
CONFIG_USB_KC2190=y
CONFIG_USB_NET_ZAURUS=m
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
CONFIG_USB_HSO=m
# CONFIG_USB_NET_INT51X1 is not set
CONFIG_USB_IPHETH=m
CONFIG_USB_SIERRA_NET=m
# CONFIG_USB_VL600 is not set
# CONFIG_USB_NET_CH9200 is not set
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set
CONFIG_ATH_COMMON=m
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
CONFIG_ATH5K=m
# CONFIG_ATH5K_DEBUG is not set
# CONFIG_ATH5K_TRACER is not set
CONFIG_ATH5K_PCI=y
CONFIG_ATH9K_HW=m
CONFIG_ATH9K_COMMON=m
CONFIG_ATH9K_BTCOEX_SUPPORT=y
CONFIG_ATH9K=m
CONFIG_ATH9K_PCI=y
# CONFIG_ATH9K_AHB is not set
# CONFIG_ATH9K_DEBUGFS is not set
# CONFIG_ATH9K_DYNACK is not set
# CONFIG_ATH9K_WOW is not set
CONFIG_ATH9K_RFKILL=y
# CONFIG_ATH9K_CHANNEL_CONTEXT is not set
CONFIG_ATH9K_PCOEM=y
# CONFIG_ATH9K_HTC is not set
CONFIG_ATH9K_HWRNG=y
# CONFIG_CARL9170 is not set
# CONFIG_ATH6KL is not set
# CONFIG_AR5523 is not set
# CONFIG_WIL6210 is not set
# CONFIG_ATH10K is not set
# CONFIG_WCN36XX is not set
CONFIG_WLAN_VENDOR_ATMEL=y
# CONFIG_ATMEL is not set
# CONFIG_AT76C50X_USB is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
CONFIG_BRCMUTIL=m
CONFIG_BRCMSMAC=m
CONFIG_BRCMFMAC=m
CONFIG_BRCMFMAC_PROTO_BCDC=y
CONFIG_BRCMFMAC_SDIO=y
CONFIG_BRCMFMAC_USB=y
# CONFIG_BRCMFMAC_PCIE is not set
# CONFIG_BRCM_TRACING is not set
# CONFIG_BRCMDBG is not set
CONFIG_WLAN_VENDOR_CISCO=y
# CONFIG_AIRO is not set
CONFIG_WLAN_VENDOR_INTEL=y
CONFIG_IPW2100=m
# CONFIG_IPW2100_MONITOR is not set
# CONFIG_IPW2100_DEBUG is not set
CONFIG_IPW2200=m
# CONFIG_IPW2200_MONITOR is not set
CONFIG_IPW2200_QOS=y
# CONFIG_IPW2200_DEBUG is not set
CONFIG_LIBIPW=m
# CONFIG_LIBIPW_DEBUG is not set
CONFIG_IWLEGACY=m
CONFIG_IWL4965=m
CONFIG_IWL3945=m
#
# iwl3945 / iwl4965 Debugging Options
#
# CONFIG_IWLEGACY_DEBUG is not set
# CONFIG_IWLEGACY_DEBUGFS is not set
CONFIG_IWLWIFI=m
CONFIG_IWLWIFI_LEDS=y
CONFIG_IWLDVM=m
CONFIG_IWLMVM=m
CONFIG_IWLWIFI_OPMODE_MODULAR=y
# CONFIG_IWLWIFI_BCAST_FILTERING is not set
# CONFIG_IWLWIFI_UAPSD is not set
#
# Debugging Options
#
# CONFIG_IWLWIFI_DEBUG is not set
CONFIG_IWLWIFI_DEBUGFS=y
CONFIG_IWLWIFI_DEVICE_TRACING=y
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_HERMES is not set
# CONFIG_P54_COMMON is not set
# CONFIG_PRISM54 is not set
CONFIG_WLAN_VENDOR_MARVELL=y
# CONFIG_LIBERTAS is not set
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_MWIFIEX is not set
# CONFIG_MWL8K is not set
CONFIG_WLAN_VENDOR_MEDIATEK=y
# CONFIG_MT7601U is not set
CONFIG_WLAN_VENDOR_RALINK=y
CONFIG_RT2X00=m
# CONFIG_RT2400PCI is not set
# CONFIG_RT2500PCI is not set
# CONFIG_RT61PCI is not set
CONFIG_RT2800PCI=m
CONFIG_RT2800PCI_RT33XX=y
CONFIG_RT2800PCI_RT35XX=y
CONFIG_RT2800PCI_RT53XX=y
CONFIG_RT2800PCI_RT3290=y
# CONFIG_RT2500USB is not set
# CONFIG_RT73USB is not set
# CONFIG_RT2800USB is not set
CONFIG_RT2800_LIB=m
CONFIG_RT2800_LIB_MMIO=m
CONFIG_RT2X00_LIB_MMIO=m
CONFIG_RT2X00_LIB_PCI=m
CONFIG_RT2X00_LIB=m
CONFIG_RT2X00_LIB_FIRMWARE=y
CONFIG_RT2X00_LIB_CRYPTO=y
CONFIG_RT2X00_LIB_LEDS=y
# CONFIG_RT2X00_LIB_DEBUGFS is not set
# CONFIG_RT2X00_DEBUG is not set
CONFIG_WLAN_VENDOR_REALTEK=y
# CONFIG_RTL8180 is not set
# CONFIG_RTL8187 is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CE is not set
# CONFIG_RTL8192SE is not set
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8723BE is not set
# CONFIG_RTL8188EE is not set
# CONFIG_RTL8192EE is not set
# CONFIG_RTL8821AE is not set
# CONFIG_RTL8192CU is not set
# CONFIG_RTL8XXXU is not set
CONFIG_WLAN_VENDOR_RSI=y
# CONFIG_RSI_91X is not set
CONFIG_WLAN_VENDOR_ST=y
# CONFIG_CW1200 is not set
CONFIG_WLAN_VENDOR_TI=y
# CONFIG_WL1251 is not set
# CONFIG_WL12XX is not set
# CONFIG_WL18XX is not set
# CONFIG_WLCORE is not set
CONFIG_WLAN_VENDOR_ZYDAS=y
# CONFIG_USB_ZD1201 is not set
# CONFIG_ZD1211RW is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_ISDN is not set
# CONFIG_NVM is not set
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_POLLDEV=m
CONFIG_INPUT_SPARSEKMAP=m
# CONFIG_INPUT_MATRIXKMAP is not set
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_SENTELIC=y
CONFIG_MOUSE_PS2_TOUCHKIT=y
CONFIG_MOUSE_PS2_FOCALTECH=y
# CONFIG_MOUSE_PS2_VMMOUSE is not set
CONFIG_MOUSE_SERIAL=m
CONFIG_MOUSE_APPLETOUCH=y
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_ELAN_I2C is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_GPIO is not set
CONFIG_MOUSE_SYNAPTICS_I2C=m
CONFIG_MOUSE_SYNAPTICS_USB=m
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
# CONFIG_TABLET_USB_ACECAD is not set
# CONFIG_TABLET_USB_AIPTEK is not set
# CONFIG_TABLET_USB_GTCO is not set
# CONFIG_TABLET_USB_HANWANG is not set
# CONFIG_TABLET_USB_KBTAB is not set
# CONFIG_TABLET_SERIAL_WACOM4 is not set
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_PROPERTIES=y
# CONFIG_TOUCHSCREEN_ADS7846 is not set
# CONFIG_TOUCHSCREEN_AD7877 is not set
# CONFIG_TOUCHSCREEN_AD7879 is not set
CONFIG_TOUCHSCREEN_ATMEL_MXT=y
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
# CONFIG_TOUCHSCREEN_BU21013 is not set
# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
# CONFIG_TOUCHSCREEN_DYNAPRO is not set
# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set
# CONFIG_TOUCHSCREEN_FT6236 is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_GOODIX is not set
# CONFIG_TOUCHSCREEN_ILI210X is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
# CONFIG_TOUCHSCREEN_ELAN is not set
# CONFIG_TOUCHSCREEN_ELO is not set
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
# CONFIG_TOUCHSCREEN_MMS114 is not set
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
# CONFIG_TOUCHSCREEN_MK712 is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_PIXCIR is not set
# CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set
# CONFIG_TOUCHSCREEN_WM97XX is not set
CONFIG_TOUCHSCREEN_USB_COMPOSITE=m
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
CONFIG_TOUCHSCREEN_USB_3M=y
CONFIG_TOUCHSCREEN_USB_ITM=y
CONFIG_TOUCHSCREEN_USB_ETURBO=y
CONFIG_TOUCHSCREEN_USB_GUNZE=y
CONFIG_TOUCHSCREEN_USB_DMC_TSC10=y
CONFIG_TOUCHSCREEN_USB_IRTOUCH=y
CONFIG_TOUCHSCREEN_USB_IDEALTEK=y
CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y
CONFIG_TOUCHSCREEN_USB_GOTOP=y
CONFIG_TOUCHSCREEN_USB_JASTEC=y
CONFIG_TOUCHSCREEN_USB_ELO=y
CONFIG_TOUCHSCREEN_USB_E2I=y
CONFIG_TOUCHSCREEN_USB_ZYTRONIC=y
CONFIG_TOUCHSCREEN_USB_ETT_TC45USB=y
CONFIG_TOUCHSCREEN_USB_NEXIO=y
CONFIG_TOUCHSCREEN_USB_EASYTOUCH=y
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
# CONFIG_TOUCHSCREEN_TSC2004 is not set
# CONFIG_TOUCHSCREEN_TSC2005 is not set
# CONFIG_TOUCHSCREEN_TSC2007 is not set
# CONFIG_TOUCHSCREEN_ST1232 is not set
# CONFIG_TOUCHSCREEN_SUR40 is not set
# CONFIG_TOUCHSCREEN_SX8654 is not set
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ZFORCE is not set
# CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set
# CONFIG_INPUT_MISC is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVMEM=y
CONFIG_DEVKMEM=y
#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_FSL is not set
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_8250_FINTEK is not set
# CONFIG_SERIAL_8250_MID is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_KGDB_NMI is not set
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_CONSOLE_POLL=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
CONFIG_SERIAL_ALTERA_JTAGUART=m
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_IFX6X60 is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
CONFIG_TTY_PRINTK=y
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
CONFIG_HVC_DRIVER=y
CONFIG_VIRTIO_CONSOLE=y
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=m
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_INTEL=m
CONFIG_HW_RANDOM_AMD=m
CONFIG_HW_RANDOM_VIA=m
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_HW_RANDOM_TPM=m
CONFIG_NVRAM=m
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
CONFIG_HPET_MMAP_DEFAULT=y
# CONFIG_HANGCHECK_TIMER is not set
CONFIG_TCG_TPM=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_I2C_ATMEL is not set
CONFIG_TCG_TIS_I2C_INFINEON=m
# CONFIG_TCG_TIS_I2C_NUVOTON is not set
CONFIG_TCG_NSC=y
CONFIG_TCG_ATMEL=y
CONFIG_TCG_INFINEON=y
# CONFIG_TCG_CRB is not set
# CONFIG_TCG_TIS_ST33ZP24 is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set
#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y
#
# Multiplexer I2C Chip support
#
CONFIG_I2C_MUX_GPIO=m
CONFIG_I2C_MUX_PCA9541=m
CONFIG_I2C_MUX_PCA954x=m
# CONFIG_I2C_MUX_PINCTRL is not set
# CONFIG_I2C_MUX_REG is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_I801=m
CONFIG_I2C_ISCH=m
CONFIG_I2C_ISMT=m
CONFIG_I2C_PIIX4=m
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DESIGNWARE_CORE=m
CONFIG_I2C_DESIGNWARE_PLATFORM=m
CONFIG_I2C_DESIGNWARE_PCI=m
# CONFIG_I2C_DESIGNWARE_BAYTRAIL is not set
# CONFIG_I2C_EMEV2 is not set
CONFIG_I2C_GPIO=m
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
CONFIG_SPI_BITBANG=y
# CONFIG_SPI_BUTTERFLY is not set
# CONFIG_SPI_CADENCE is not set
CONFIG_SPI_GPIO=y
# CONFIG_SPI_LM70_LLP is not set
# CONFIG_SPI_OC_TINY is not set
CONFIG_SPI_PXA2XX_DMA=y
CONFIG_SPI_PXA2XX=m
CONFIG_SPI_PXA2XX_PCI=m
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
CONFIG_SPI_DESIGNWARE=m
CONFIG_SPI_DW_PCI=m
CONFIG_SPI_DW_MID_DMA=y
CONFIG_SPI_DW_MMIO=m
#
# SPI Protocol Masters
#
CONFIG_SPI_SPIDEV=m
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
#
# PPS support
#
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set
#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_PARPORT is not set
# CONFIG_PPS_CLIENT_GPIO is not set
#
# PPS generators support
#
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PINCTRL=y
#
# Pin controllers
#
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
CONFIG_PINCTRL_BAYTRAIL=y
# CONFIG_PINCTRL_CHERRYVIEW is not set
CONFIG_PINCTRL_INTEL=m
CONFIG_PINCTRL_BROXTON=m
CONFIG_PINCTRL_SUNRISEPOINT=m
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_GENERIC=m
#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_DWAPB is not set
CONFIG_GPIO_GENERIC_PLATFORM=m
CONFIG_GPIO_ICH=m
CONFIG_GPIO_LYNXPOINT=y
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_ZX is not set
#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_104_IDIO_16 is not set
# CONFIG_GPIO_104_IDI_48 is not set
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_IT87 is not set
CONFIG_GPIO_SCH=m
# CONFIG_GPIO_SCH311X is not set
#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_SX150X is not set
#
# MFD GPIO expanders
#
#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
CONFIG_GPIO_INTEL_MID=y
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_RDC321X is not set
#
# SPI GPIO expanders
#
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
#
# SPI or I2C GPIO expanders
#
# CONFIG_GPIO_MCP23S08 is not set
#
# USB GPIO expanders
#
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
CONFIG_GENERIC_ADC_BATTERY=m
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
CONFIG_BATTERY_SBS=m
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_ISP1704 is not set
# CONFIG_CHARGER_MAX8903 is not set
CONFIG_CHARGER_LP8727=m
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24190 is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_CHARGER_RT9455 is not set
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_RESTART is not set
CONFIG_POWER_AVS=y
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7314 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7310 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_FAM15H_POWER is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
CONFIG_SENSORS_DELL_SMM=m
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_GPIO_FAN is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_IIO_HWMON is not set
# CONFIG_SENSORS_I5500 is not set
CONFIG_SENSORS_CORETEMP=m
# CONFIG_SENSORS_IT87 is not set
CONFIG_SENSORS_JC42=m
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_ADCXX is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM70 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SHT15 is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
# CONFIG_SENSORS_ADS1015 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_ADS7871 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
#
# ACPI drivers
#
CONFIG_SENSORS_ACPI_POWER=m
# CONFIG_SENSORS_ATK0110 is not set
CONFIG_THERMAL=y
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_GOV_POWER_ALLOCATOR is not set
# CONFIG_THERMAL_EMULATION is not set
CONFIG_INTEL_POWERCLAMP=m
CONFIG_X86_PKG_TEMP_THERMAL=m
CONFIG_INTEL_SOC_DTS_IOSF_CORE=m
CONFIG_INTEL_SOC_DTS_THERMAL=m
CONFIG_INT340X_THERMAL=m
CONFIG_ACPI_THERMAL_REL=m
# CONFIG_INTEL_PCH_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
# CONFIG_WATCHDOG_SYSFS is not set
#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SBC_FITPC2_WATCHDOG is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=m
CONFIG_IE6XX_WDT=m
CONFIG_ITCO_WDT=y
CONFIG_ITCO_VENDOR_SUPPORT=y
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
# CONFIG_HP_WATCHDOG is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_VIA_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
# CONFIG_MACHZ_WDT is not set
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_BCM7038_WDT is not set
# CONFIG_MEN_A21_WDT is not set
#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set
#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
CONFIG_BCMA=m
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_PCI=y
# CONFIG_BCMA_HOST_SOC is not set
CONFIG_BCMA_DRIVER_PCI=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
# CONFIG_BCMA_DRIVER_GPIO is not set
# CONFIG_BCMA_DEBUG is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_AXP20X is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
CONFIG_LPC_ICH=y
CONFIG_LPC_SCH=m
# CONFIG_INTEL_SOC_PMIC is not set
CONFIG_MFD_INTEL_LPSS=m
CONFIG_MFD_INTEL_LPSS_ACPI=m
CONFIG_MFD_INTEL_LPSS_PCI=m
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_UCB1400_CORE is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RTSX_USB is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_RN5T618 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
CONFIG_MFD_WL1273_CORE=m
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_REGULATOR is not set
CONFIG_MEDIA_SUPPORT=y
#
# Multimedia core support
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
CONFIG_MEDIA_RADIO_SUPPORT=y
# CONFIG_MEDIA_SDR_SUPPORT is not set
CONFIG_MEDIA_RC_SUPPORT=y
CONFIG_MEDIA_CONTROLLER=y
# CONFIG_MEDIA_CONTROLLER_DVB is not set
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2_SUBDEV_API=y
CONFIG_VIDEO_V4L2=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_VIDEO_TUNER=y
CONFIG_V4L2_MEM2MEM_DEV=m
CONFIG_VIDEOBUF_GEN=m
CONFIG_VIDEOBUF_DMA_SG=m
CONFIG_VIDEOBUF_VMALLOC=m
CONFIG_VIDEOBUF_DVB=m
CONFIG_VIDEOBUF2_CORE=m
CONFIG_VIDEOBUF2_MEMOPS=m
CONFIG_VIDEOBUF2_DMA_CONTIG=m
CONFIG_VIDEOBUF2_VMALLOC=m
CONFIG_VIDEOBUF2_DMA_SG=m
CONFIG_VIDEOBUF2_DVB=m
CONFIG_DVB_CORE=y
CONFIG_DVB_NET=y
CONFIG_TTPCI_EEPROM=m
CONFIG_DVB_MAX_ADAPTERS=8
CONFIG_DVB_DYNAMIC_MINORS=y
#
# Media drivers
#
CONFIG_RC_CORE=y
CONFIG_RC_MAP=y
CONFIG_RC_DECODERS=y
CONFIG_LIRC=m
CONFIG_IR_LIRC_CODEC=m
CONFIG_IR_NEC_DECODER=y
CONFIG_IR_RC5_DECODER=y
CONFIG_IR_RC6_DECODER=y
CONFIG_IR_JVC_DECODER=y
CONFIG_IR_SONY_DECODER=y
CONFIG_IR_SANYO_DECODER=y
CONFIG_IR_SHARP_DECODER=y
CONFIG_IR_MCE_KBD_DECODER=y
CONFIG_IR_XMP_DECODER=y
# CONFIG_RC_DEVICES is not set
CONFIG_MEDIA_USB_SUPPORT=y
#
# Webcam devices
#
CONFIG_USB_VIDEO_CLASS=m
CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
CONFIG_USB_GSPCA=m
CONFIG_USB_M5602=m
CONFIG_USB_STV06XX=m
CONFIG_USB_GL860=m
CONFIG_USB_GSPCA_BENQ=m
CONFIG_USB_GSPCA_CONEX=m
CONFIG_USB_GSPCA_CPIA1=m
# CONFIG_USB_GSPCA_DTCS033 is not set
CONFIG_USB_GSPCA_ETOMS=m
CONFIG_USB_GSPCA_FINEPIX=m
CONFIG_USB_GSPCA_JEILINJ=m
CONFIG_USB_GSPCA_JL2005BCD=m
CONFIG_USB_GSPCA_KINECT=m
CONFIG_USB_GSPCA_KONICA=m
CONFIG_USB_GSPCA_MARS=m
CONFIG_USB_GSPCA_MR97310A=m
CONFIG_USB_GSPCA_NW80X=m
CONFIG_USB_GSPCA_OV519=m
CONFIG_USB_GSPCA_OV534=m
CONFIG_USB_GSPCA_OV534_9=m
CONFIG_USB_GSPCA_PAC207=m
CONFIG_USB_GSPCA_PAC7302=m
CONFIG_USB_GSPCA_PAC7311=m
CONFIG_USB_GSPCA_SE401=m
CONFIG_USB_GSPCA_SN9C2028=m
CONFIG_USB_GSPCA_SN9C20X=m
CONFIG_USB_GSPCA_SONIXB=m
CONFIG_USB_GSPCA_SONIXJ=m
CONFIG_USB_GSPCA_SPCA500=m
CONFIG_USB_GSPCA_SPCA501=m
CONFIG_USB_GSPCA_SPCA505=m
CONFIG_USB_GSPCA_SPCA506=m
CONFIG_USB_GSPCA_SPCA508=m
CONFIG_USB_GSPCA_SPCA561=m
CONFIG_USB_GSPCA_SPCA1528=m
CONFIG_USB_GSPCA_SQ905=m
CONFIG_USB_GSPCA_SQ905C=m
CONFIG_USB_GSPCA_SQ930X=m
CONFIG_USB_GSPCA_STK014=m
# CONFIG_USB_GSPCA_STK1135 is not set
CONFIG_USB_GSPCA_STV0680=m
CONFIG_USB_GSPCA_SUNPLUS=m
CONFIG_USB_GSPCA_T613=m
CONFIG_USB_GSPCA_TOPRO=m
# CONFIG_USB_GSPCA_TOUPTEK is not set
CONFIG_USB_GSPCA_TV8532=m
CONFIG_USB_GSPCA_VC032X=m
CONFIG_USB_GSPCA_VICAM=m
CONFIG_USB_GSPCA_XIRLINK_CIT=m
CONFIG_USB_GSPCA_ZC3XX=m
CONFIG_USB_PWC=m
# CONFIG_USB_PWC_DEBUG is not set
CONFIG_USB_PWC_INPUT_EVDEV=y
CONFIG_VIDEO_CPIA2=m
# CONFIG_USB_ZR364XX is not set
CONFIG_USB_STKWEBCAM=m
CONFIG_USB_S2255=m
# CONFIG_VIDEO_USBTV is not set
#
# Analog TV USB devices
#
CONFIG_VIDEO_PVRUSB2=m
CONFIG_VIDEO_PVRUSB2_SYSFS=y
CONFIG_VIDEO_PVRUSB2_DVB=y
# CONFIG_VIDEO_PVRUSB2_DEBUGIFC is not set
CONFIG_VIDEO_HDPVR=m
CONFIG_VIDEO_USBVISION=m
# CONFIG_VIDEO_STK1160_COMMON is not set
# CONFIG_VIDEO_GO7007 is not set
#
# Analog/digital TV USB devices
#
CONFIG_VIDEO_AU0828=m
CONFIG_VIDEO_AU0828_V4L2=y
# CONFIG_VIDEO_AU0828_RC is not set
CONFIG_VIDEO_CX231XX=m
CONFIG_VIDEO_CX231XX_RC=y
CONFIG_VIDEO_CX231XX_ALSA=m
CONFIG_VIDEO_CX231XX_DVB=m
CONFIG_VIDEO_TM6000=m
CONFIG_VIDEO_TM6000_ALSA=m
CONFIG_VIDEO_TM6000_DVB=m
#
# Digital TV USB devices
#
CONFIG_DVB_USB=m
# CONFIG_DVB_USB_DEBUG is not set
CONFIG_DVB_USB_A800=m
CONFIG_DVB_USB_DIBUSB_MB=m
# CONFIG_DVB_USB_DIBUSB_MB_FAULTY is not set
CONFIG_DVB_USB_DIBUSB_MC=m
CONFIG_DVB_USB_DIB0700=m
CONFIG_DVB_USB_UMT_010=m
CONFIG_DVB_USB_CXUSB=m
CONFIG_DVB_USB_M920X=m
CONFIG_DVB_USB_DIGITV=m
CONFIG_DVB_USB_VP7045=m
CONFIG_DVB_USB_VP702X=m
CONFIG_DVB_USB_GP8PSK=m
CONFIG_DVB_USB_NOVA_T_USB2=m
CONFIG_DVB_USB_TTUSB2=m
CONFIG_DVB_USB_DTT200U=m
CONFIG_DVB_USB_OPERA1=m
CONFIG_DVB_USB_AF9005=m
CONFIG_DVB_USB_AF9005_REMOTE=m
CONFIG_DVB_USB_PCTV452E=m
CONFIG_DVB_USB_DW2102=m
CONFIG_DVB_USB_CINERGY_T2=m
CONFIG_DVB_USB_DTV5100=m
CONFIG_DVB_USB_FRIIO=m
CONFIG_DVB_USB_AZ6027=m
CONFIG_DVB_USB_TECHNISAT_USB2=m
CONFIG_DVB_USB_V2=m
CONFIG_DVB_USB_AF9015=m
CONFIG_DVB_USB_AF9035=m
CONFIG_DVB_USB_ANYSEE=m
CONFIG_DVB_USB_AU6610=m
CONFIG_DVB_USB_AZ6007=m
CONFIG_DVB_USB_CE6230=m
CONFIG_DVB_USB_EC168=m
CONFIG_DVB_USB_GL861=m
CONFIG_DVB_USB_LME2510=m
CONFIG_DVB_USB_MXL111SF=m
CONFIG_DVB_USB_RTL28XXU=m
# CONFIG_DVB_USB_DVBSKY is not set
CONFIG_DVB_TTUSB_BUDGET=m
CONFIG_DVB_TTUSB_DEC=m
CONFIG_SMS_USB_DRV=m
CONFIG_DVB_B2C2_FLEXCOP_USB=m
# CONFIG_DVB_B2C2_FLEXCOP_USB_DEBUG is not set
# CONFIG_DVB_AS102 is not set
#
# Webcam, TV (analog/digital) USB devices
#
CONFIG_VIDEO_EM28XX=m
# CONFIG_VIDEO_EM28XX_V4L2 is not set
CONFIG_VIDEO_EM28XX_ALSA=m
CONFIG_VIDEO_EM28XX_DVB=m
CONFIG_VIDEO_EM28XX_RC=m
CONFIG_MEDIA_PCI_SUPPORT=y
#
# Media capture support
#
# CONFIG_VIDEO_SOLO6X10 is not set
# CONFIG_VIDEO_TW68 is not set
CONFIG_VIDEO_ZORAN=m
CONFIG_VIDEO_ZORAN_DC30=m
CONFIG_VIDEO_ZORAN_ZR36060=m
# CONFIG_VIDEO_ZORAN_BUZ is not set
CONFIG_VIDEO_ZORAN_DC10=m
CONFIG_VIDEO_ZORAN_LML33=m
CONFIG_VIDEO_ZORAN_LML33R10=m
CONFIG_VIDEO_ZORAN_AVS6EYES=m
#
# Media capture/analog TV support
#
CONFIG_VIDEO_IVTV=y
CONFIG_VIDEO_IVTV_ALSA=m
CONFIG_VIDEO_FB_IVTV=y
CONFIG_VIDEO_HEXIUM_GEMINI=m
CONFIG_VIDEO_HEXIUM_ORION=m
CONFIG_VIDEO_MXB=m
# CONFIG_VIDEO_DT3155 is not set
#
# Media capture/analog/hybrid TV support
#
CONFIG_VIDEO_CX18=m
CONFIG_VIDEO_CX18_ALSA=m
CONFIG_VIDEO_CX23885=m
CONFIG_MEDIA_ALTERA_CI=m
CONFIG_VIDEO_CX25821=m
CONFIG_VIDEO_CX25821_ALSA=m
CONFIG_VIDEO_CX88=m
CONFIG_VIDEO_CX88_ALSA=m
CONFIG_VIDEO_CX88_BLACKBIRD=m
CONFIG_VIDEO_CX88_DVB=m
CONFIG_VIDEO_CX88_ENABLE_VP3054=y
CONFIG_VIDEO_CX88_VP3054=m
CONFIG_VIDEO_CX88_MPEG=m
CONFIG_VIDEO_BT848=m
CONFIG_DVB_BT8XX=m
CONFIG_VIDEO_SAA7134=m
CONFIG_VIDEO_SAA7134_ALSA=m
CONFIG_VIDEO_SAA7134_RC=y
CONFIG_VIDEO_SAA7134_DVB=m
CONFIG_VIDEO_SAA7164=m
#
# Media digital TV PCI Adapters
#
CONFIG_DVB_AV7110_IR=y
CONFIG_DVB_AV7110=m
CONFIG_DVB_AV7110_OSD=y
CONFIG_DVB_BUDGET_CORE=m
CONFIG_DVB_BUDGET=m
CONFIG_DVB_BUDGET_CI=m
CONFIG_DVB_BUDGET_AV=m
CONFIG_DVB_BUDGET_PATCH=m
CONFIG_DVB_B2C2_FLEXCOP_PCI=m
# CONFIG_DVB_B2C2_FLEXCOP_PCI_DEBUG is not set
CONFIG_DVB_PLUTO2=m
CONFIG_DVB_DM1105=m
CONFIG_DVB_PT1=m
# CONFIG_DVB_PT3 is not set
CONFIG_MANTIS_CORE=m
CONFIG_DVB_MANTIS=m
CONFIG_DVB_HOPPER=m
CONFIG_DVB_NGENE=m
CONFIG_DVB_DDBRIDGE=m
# CONFIG_DVB_SMIPCIE is not set
# CONFIG_DVB_NETUP_UNIDVB is not set
CONFIG_V4L_PLATFORM_DRIVERS=y
# CONFIG_VIDEO_CAFE_CCIC is not set
CONFIG_SOC_CAMERA=m
CONFIG_SOC_CAMERA_PLATFORM=m
CONFIG_V4L_MEM2MEM_DRIVERS=y
CONFIG_VIDEO_MEM2MEM_DEINTERLACE=m
# CONFIG_VIDEO_SH_VEU is not set
# CONFIG_V4L_TEST_DRIVERS is not set
# CONFIG_DVB_PLATFORM_DRIVERS is not set
#
# Supported MMC/SDIO adapters
#
# CONFIG_SMS_SDIO_DRV is not set
CONFIG_RADIO_ADAPTERS=y
CONFIG_RADIO_TEA575X=m
CONFIG_RADIO_SI470X=y
CONFIG_USB_SI470X=m
CONFIG_I2C_SI470X=m
CONFIG_RADIO_SI4713=m
# CONFIG_USB_SI4713 is not set
# CONFIG_PLATFORM_SI4713 is not set
CONFIG_I2C_SI4713=m
CONFIG_USB_MR800=m
CONFIG_USB_DSBR=m
CONFIG_RADIO_MAXIRADIO=m
CONFIG_RADIO_SHARK=m
CONFIG_RADIO_SHARK2=m
CONFIG_USB_KEENE=m
# CONFIG_USB_RAREMONO is not set
# CONFIG_USB_MA901 is not set
CONFIG_RADIO_TEA5764=m
CONFIG_RADIO_SAA7706H=m
CONFIG_RADIO_TEF6862=m
CONFIG_RADIO_WL1273=m
#
# Texas Instruments WL128x FM driver (ST based)
#
CONFIG_MEDIA_COMMON_OPTIONS=y
#
# common driver options
#
CONFIG_VIDEO_CX2341X=y
CONFIG_VIDEO_TVEEPROM=y
CONFIG_CYPRESS_FIRMWARE=m
CONFIG_DVB_B2C2_FLEXCOP=m
CONFIG_VIDEO_SAA7146=m
CONFIG_VIDEO_SAA7146_VV=m
CONFIG_SMS_SIANO_MDTV=m
CONFIG_SMS_SIANO_RC=y
#
# Media ancillary drivers (tuners, sensors, i2c, frontends)
#
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y
CONFIG_MEDIA_ATTACH=y
CONFIG_VIDEO_IR_I2C=y
#
# Audio decoders, processors and mixers
#
CONFIG_VIDEO_TVAUDIO=m
CONFIG_VIDEO_TDA7432=m
CONFIG_VIDEO_TDA9840=m
CONFIG_VIDEO_TEA6415C=m
CONFIG_VIDEO_TEA6420=m
CONFIG_VIDEO_MSP3400=y
CONFIG_VIDEO_CS3308=m
CONFIG_VIDEO_CS5345=m
CONFIG_VIDEO_CS53L32A=y
CONFIG_VIDEO_WM8775=y
CONFIG_VIDEO_WM8739=y
CONFIG_VIDEO_VP27SMPX=y
#
# RDS decoders
#
CONFIG_VIDEO_SAA6588=m
#
# Video decoders
#
CONFIG_VIDEO_BT819=m
CONFIG_VIDEO_BT856=m
CONFIG_VIDEO_BT866=m
CONFIG_VIDEO_KS0127=m
CONFIG_VIDEO_SAA7110=m
CONFIG_VIDEO_SAA711X=y
CONFIG_VIDEO_VPX3220=m
#
# Video and audio decoders
#
CONFIG_VIDEO_SAA717X=y
CONFIG_VIDEO_CX25840=y
#
# Video encoders
#
CONFIG_VIDEO_SAA7127=y
CONFIG_VIDEO_ADV7170=m
CONFIG_VIDEO_ADV7175=m
#
# Camera sensor devices
#
#
# Flash devices
#
#
# Video improvement chips
#
CONFIG_VIDEO_UPD64031A=y
CONFIG_VIDEO_UPD64083=y
#
# Audio/Video compression chips
#
CONFIG_VIDEO_SAA6752HS=m
#
# Miscellaneous helper chips
#
CONFIG_VIDEO_M52790=y
#
# Sensors used on soc_camera driver
#
#
# soc_camera sensor drivers
#
# CONFIG_SOC_CAMERA_IMX074 is not set
# CONFIG_SOC_CAMERA_MT9M001 is not set
# CONFIG_SOC_CAMERA_MT9M111 is not set
# CONFIG_SOC_CAMERA_MT9T031 is not set
# CONFIG_SOC_CAMERA_MT9T112 is not set
# CONFIG_SOC_CAMERA_MT9V022 is not set
# CONFIG_SOC_CAMERA_OV2640 is not set
# CONFIG_SOC_CAMERA_OV5642 is not set
# CONFIG_SOC_CAMERA_OV6650 is not set
# CONFIG_SOC_CAMERA_OV772X is not set
# CONFIG_SOC_CAMERA_OV9640 is not set
# CONFIG_SOC_CAMERA_OV9740 is not set
# CONFIG_SOC_CAMERA_RJ54N1 is not set
# CONFIG_SOC_CAMERA_TW9910 is not set
CONFIG_MEDIA_TUNER=y
CONFIG_MEDIA_TUNER_SIMPLE=y
CONFIG_MEDIA_TUNER_TDA8290=y
CONFIG_MEDIA_TUNER_TDA827X=y
CONFIG_MEDIA_TUNER_TDA18271=y
CONFIG_MEDIA_TUNER_TDA9887=y
CONFIG_MEDIA_TUNER_TEA5761=y
CONFIG_MEDIA_TUNER_TEA5767=y
CONFIG_MEDIA_TUNER_MT20XX=y
CONFIG_MEDIA_TUNER_MT2060=m
CONFIG_MEDIA_TUNER_MT2063=m
CONFIG_MEDIA_TUNER_MT2266=m
CONFIG_MEDIA_TUNER_MT2131=m
CONFIG_MEDIA_TUNER_QT1010=m
CONFIG_MEDIA_TUNER_XC2028=y
CONFIG_MEDIA_TUNER_XC5000=y
CONFIG_MEDIA_TUNER_XC4000=y
CONFIG_MEDIA_TUNER_MXL5005S=m
CONFIG_MEDIA_TUNER_MXL5007T=m
CONFIG_MEDIA_TUNER_MC44S803=y
CONFIG_MEDIA_TUNER_MAX2165=m
CONFIG_MEDIA_TUNER_TDA18218=m
CONFIG_MEDIA_TUNER_FC0011=m
CONFIG_MEDIA_TUNER_FC0012=m
CONFIG_MEDIA_TUNER_FC0013=m
CONFIG_MEDIA_TUNER_TDA18212=m
CONFIG_MEDIA_TUNER_E4000=m
CONFIG_MEDIA_TUNER_FC2580=m
CONFIG_MEDIA_TUNER_M88RS6000T=m
CONFIG_MEDIA_TUNER_TUA9001=m
CONFIG_MEDIA_TUNER_SI2157=m
CONFIG_MEDIA_TUNER_IT913X=m
CONFIG_MEDIA_TUNER_R820T=m
#
# Multistandard (satellite) frontends
#
CONFIG_DVB_STB0899=m
CONFIG_DVB_STB6100=m
CONFIG_DVB_STV090x=m
CONFIG_DVB_STV6110x=m
CONFIG_DVB_M88DS3103=m
#
# Multistandard (cable + terrestrial) frontends
#
CONFIG_DVB_DRXK=m
CONFIG_DVB_TDA18271C2DD=m
CONFIG_DVB_SI2165=m
#
# DVB-S (satellite) frontends
#
CONFIG_DVB_CX24110=m
CONFIG_DVB_CX24123=m
CONFIG_DVB_MT312=m
CONFIG_DVB_ZL10036=m
CONFIG_DVB_ZL10039=m
CONFIG_DVB_S5H1420=m
CONFIG_DVB_STV0288=m
CONFIG_DVB_STB6000=m
CONFIG_DVB_STV0299=m
CONFIG_DVB_STV6110=m
CONFIG_DVB_STV0900=m
CONFIG_DVB_TDA8083=m
CONFIG_DVB_TDA10086=m
CONFIG_DVB_TDA8261=m
CONFIG_DVB_VES1X93=m
CONFIG_DVB_TUNER_ITD1000=m
CONFIG_DVB_TUNER_CX24113=m
CONFIG_DVB_TDA826X=m
CONFIG_DVB_TUA6100=m
CONFIG_DVB_CX24116=m
CONFIG_DVB_CX24117=m
CONFIG_DVB_CX24120=m
CONFIG_DVB_SI21XX=m
CONFIG_DVB_TS2020=m
CONFIG_DVB_DS3000=m
CONFIG_DVB_MB86A16=m
CONFIG_DVB_TDA10071=m
#
# DVB-T (terrestrial) frontends
#
CONFIG_DVB_SP8870=m
CONFIG_DVB_SP887X=m
CONFIG_DVB_CX22700=m
CONFIG_DVB_CX22702=m
CONFIG_DVB_DRXD=m
CONFIG_DVB_L64781=m
CONFIG_DVB_TDA1004X=m
CONFIG_DVB_NXT6000=m
CONFIG_DVB_MT352=m
CONFIG_DVB_ZL10353=m
CONFIG_DVB_DIB3000MB=m
CONFIG_DVB_DIB3000MC=m
CONFIG_DVB_DIB7000M=m
CONFIG_DVB_DIB7000P=m
CONFIG_DVB_TDA10048=m
CONFIG_DVB_AF9013=m
CONFIG_DVB_EC100=m
CONFIG_DVB_STV0367=m
CONFIG_DVB_CXD2820R=m
CONFIG_DVB_RTL2830=m
CONFIG_DVB_RTL2832=m
CONFIG_DVB_SI2168=m
# CONFIG_DVB_AS102_FE is not set
#
# DVB-C (cable) frontends
#
CONFIG_DVB_VES1820=m
CONFIG_DVB_TDA10021=m
CONFIG_DVB_TDA10023=m
CONFIG_DVB_STV0297=m
#
# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
#
CONFIG_DVB_NXT200X=m
CONFIG_DVB_OR51211=m
CONFIG_DVB_OR51132=m
CONFIG_DVB_BCM3510=m
CONFIG_DVB_LGDT330X=m
CONFIG_DVB_LGDT3305=m
CONFIG_DVB_LGDT3306A=m
CONFIG_DVB_LG2160=m
CONFIG_DVB_S5H1409=m
CONFIG_DVB_AU8522=m
CONFIG_DVB_AU8522_DTV=m
CONFIG_DVB_AU8522_V4L=m
CONFIG_DVB_S5H1411=m
#
# ISDB-T (terrestrial) frontends
#
CONFIG_DVB_S921=m
CONFIG_DVB_DIB8000=m
CONFIG_DVB_MB86A20S=m
#
# ISDB-S (satellite) & ISDB-T (terrestrial) frontends
#
#
# Digital terrestrial only tuners/PLL
#
CONFIG_DVB_PLL=m
CONFIG_DVB_TUNER_DIB0070=m
CONFIG_DVB_TUNER_DIB0090=m
#
# SEC control devices for DVB-S
#
CONFIG_DVB_DRX39XYJ=m
CONFIG_DVB_LNBP21=m
CONFIG_DVB_LNBP22=m
CONFIG_DVB_ISL6405=m
CONFIG_DVB_ISL6421=m
CONFIG_DVB_ISL6423=m
CONFIG_DVB_A8293=m
CONFIG_DVB_LGS8GXX=m
CONFIG_DVB_ATBM8830=m
CONFIG_DVB_TDA665x=m
CONFIG_DVB_IX2505V=m
CONFIG_DVB_M88RS2000=m
CONFIG_DVB_AF9033=m
#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set
#
# Graphics support
#
CONFIG_AGP=y
# CONFIG_AGP_AMD64 is not set
CONFIG_AGP_INTEL=y
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
CONFIG_INTEL_GTT=y
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=10
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=y
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_KMS_FB_HELPER=y
CONFIG_DRM_FBDEV_EMULATION=y
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_TTM=m
#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_ADV7511 is not set
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
# CONFIG_DRM_NOUVEAU is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT=y
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
CONFIG_DRM_CIRRUS_QEMU=m
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_BOCHS is not set
# CONFIG_DRM_VIRTIO_GPU is not set
CONFIG_DRM_PANEL=y
#
# Display Panels
#
CONFIG_DRM_BRIDGE=y
#
# Display Interface Bridges
#
#
# Frame buffer Devices
#
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
# CONFIG_FB_DDC is not set
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set
#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
CONFIG_FB_UVESA=m
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_INTEL is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
CONFIG_FB_SIMPLE=y
# CONFIG_FB_SM712 is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
# CONFIG_LCD_L4F00242T03 is not set
# CONFIG_LCD_LMS283GF05 is not set
# CONFIG_LCD_LTV350QV is not set
# CONFIG_LCD_ILI922X is not set
# CONFIG_LCD_ILI9320 is not set
# CONFIG_LCD_TDO24M is not set
# CONFIG_LCD_VGG2432A4 is not set
# CONFIG_LCD_PLATFORM is not set
# CONFIG_LCD_S6E63M0 is not set
# CONFIG_LCD_LD9040 is not set
# CONFIG_LCD_AMS369FG06 is not set
# CONFIG_LCD_LMS501KF03 is not set
# CONFIG_LCD_HX8357 is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
# CONFIG_BACKLIGHT_PWM is not set
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_PM8941_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
CONFIG_BACKLIGHT_GPIO=m
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_VGASTATE is not set
CONFIG_HDMI=y
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_VGACON_SOFT_SCROLLBACK is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_LOGO is not set
CONFIG_SOUND=y
# CONFIG_SOUND_OSS_CORE is not set
CONFIG_SND=y
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_DMAENGINE_PCM=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
CONFIG_SND_PCM_TIMER=y
# CONFIG_SND_HRTIMER is not set
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_MAX_CARDS=32
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VERBOSE_PRINTK=y
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_DMA_SGBUF=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_PCSP is not set
# CONFIG_SND_DUMMY is not set
CONFIG_SND_ALOOP=m
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=5
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ASIHPI is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
CONFIG_SND_INTEL8X0=m
CONFIG_SND_INTEL8X0M=m
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SE6X is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
#
# HD-Audio
#
CONFIG_SND_HDA=m
CONFIG_SND_HDA_INTEL=m
# CONFIG_SND_HDA_HWDEP is not set
CONFIG_SND_HDA_RECONFIG=y
# CONFIG_SND_HDA_INPUT_BEEP is not set
CONFIG_SND_HDA_PATCH_LOADER=y
CONFIG_SND_HDA_CODEC_REALTEK=m
CONFIG_SND_HDA_CODEC_ANALOG=m
CONFIG_SND_HDA_CODEC_SIGMATEL=m
# CONFIG_SND_HDA_CODEC_VIA is not set
CONFIG_SND_HDA_CODEC_HDMI=m
CONFIG_SND_HDA_CODEC_CIRRUS=m
CONFIG_SND_HDA_CODEC_CONEXANT=m
CONFIG_SND_HDA_CODEC_CA0110=m
CONFIG_SND_HDA_CODEC_CA0132=m
# CONFIG_SND_HDA_CODEC_CA0132_DSP is not set
CONFIG_SND_HDA_CODEC_CMEDIA=m
CONFIG_SND_HDA_CODEC_SI3054=m
CONFIG_SND_HDA_GENERIC=m
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=1
CONFIG_SND_HDA_CORE=m
CONFIG_SND_HDA_I915=y
CONFIG_SND_HDA_PREALLOC_SIZE=4096
CONFIG_SND_SPI=y
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_UA101 is not set
# CONFIG_SND_USB_USX2Y is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_USB_US122L is not set
# CONFIG_SND_USB_6FIRE is not set
# CONFIG_SND_USB_HIFACE is not set
# CONFIG_SND_BCD2000 is not set
# CONFIG_SND_USB_POD is not set
# CONFIG_SND_USB_PODHD is not set
# CONFIG_SND_USB_TONEPORT is not set
# CONFIG_SND_USB_VARIAX is not set
CONFIG_SND_SOC=m
CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
# CONFIG_SND_SOC_AMD_ACP is not set
# CONFIG_SND_ATMEL_SOC is not set
CONFIG_SND_DESIGNWARE_I2S=m
#
# SoC Audio for Freescale CPUs
#
#
# Common SoC Audio options for Freescale CPUs:
#
# CONFIG_SND_SOC_FSL_ASRC is not set
# CONFIG_SND_SOC_FSL_SAI is not set
# CONFIG_SND_SOC_FSL_SSI is not set
# CONFIG_SND_SOC_FSL_SPDIF is not set
# CONFIG_SND_SOC_FSL_ESAI is not set
# CONFIG_SND_SOC_IMX_AUDMUX is not set
# CONFIG_SND_SOC_IMG is not set
# CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH is not set
# CONFIG_SND_SOC_INTEL_BYTCR_RT5651_MACH is not set
# CONFIG_SND_SOC_INTEL_CHT_BSW_RT5672_MACH is not set
# CONFIG_SND_SOC_INTEL_CHT_BSW_RT5645_MACH is not set
# CONFIG_SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH is not set
# CONFIG_SND_SOC_INTEL_SKL_RT286_MACH is not set
# CONFIG_SND_SOC_INTEL_SKL_NAU88L25_SSM4567_MACH is not set
# CONFIG_SND_SOC_INTEL_SKL_NAU88L25_MAX98357A_MACH is not set
#
# Allwinner SoC Audio support
#
# CONFIG_SND_SUN4I_CODEC is not set
# CONFIG_SND_SOC_XTFPGA_I2S is not set
CONFIG_SND_SOC_I2C_AND_SPI=m
#
# CODEC drivers
#
# CONFIG_SND_SOC_AC97_CODEC is not set
# CONFIG_SND_SOC_ADAU1701 is not set
# CONFIG_SND_SOC_AK4104 is not set
# CONFIG_SND_SOC_AK4554 is not set
# CONFIG_SND_SOC_AK4613 is not set
# CONFIG_SND_SOC_AK4642 is not set
# CONFIG_SND_SOC_AK5386 is not set
# CONFIG_SND_SOC_ALC5623 is not set
# CONFIG_SND_SOC_CS35L32 is not set
# CONFIG_SND_SOC_CS42L51_I2C is not set
# CONFIG_SND_SOC_CS42L52 is not set
# CONFIG_SND_SOC_CS42L56 is not set
# CONFIG_SND_SOC_CS42L73 is not set
# CONFIG_SND_SOC_CS4265 is not set
# CONFIG_SND_SOC_CS4270 is not set
# CONFIG_SND_SOC_CS4271_I2C is not set
# CONFIG_SND_SOC_CS4271_SPI is not set
# CONFIG_SND_SOC_CS42XX8_I2C is not set
# CONFIG_SND_SOC_CS4349 is not set
# CONFIG_SND_SOC_ES8328 is not set
# CONFIG_SND_SOC_GTM601 is not set
# CONFIG_SND_SOC_INNO_RK3036 is not set
# CONFIG_SND_SOC_PCM1681 is not set
# CONFIG_SND_SOC_PCM179X is not set
# CONFIG_SND_SOC_PCM3168A_I2C is not set
# CONFIG_SND_SOC_PCM3168A_SPI is not set
# CONFIG_SND_SOC_PCM512x_I2C is not set
# CONFIG_SND_SOC_PCM512x_SPI is not set
# CONFIG_SND_SOC_RT5631 is not set
# CONFIG_SND_SOC_RT5677_SPI is not set
# CONFIG_SND_SOC_SGTL5000 is not set
# CONFIG_SND_SOC_SIRF_AUDIO_CODEC is not set
# CONFIG_SND_SOC_SPDIF is not set
# CONFIG_SND_SOC_SSM2602_SPI is not set
# CONFIG_SND_SOC_SSM2602_I2C is not set
# CONFIG_SND_SOC_SSM4567 is not set
# CONFIG_SND_SOC_STA32X is not set
# CONFIG_SND_SOC_STA350 is not set
# CONFIG_SND_SOC_STI_SAS is not set
# CONFIG_SND_SOC_TAS2552 is not set
# CONFIG_SND_SOC_TAS5086 is not set
# CONFIG_SND_SOC_TAS571X is not set
# CONFIG_SND_SOC_TFA9879 is not set
# CONFIG_SND_SOC_TLV320AIC23_I2C is not set
# CONFIG_SND_SOC_TLV320AIC23_SPI is not set
# CONFIG_SND_SOC_TLV320AIC31XX is not set
# CONFIG_SND_SOC_TLV320AIC3X is not set
# CONFIG_SND_SOC_TS3A227E is not set
# CONFIG_SND_SOC_WM8510 is not set
# CONFIG_SND_SOC_WM8523 is not set
# CONFIG_SND_SOC_WM8580 is not set
# CONFIG_SND_SOC_WM8711 is not set
# CONFIG_SND_SOC_WM8728 is not set
# CONFIG_SND_SOC_WM8731 is not set
# CONFIG_SND_SOC_WM8737 is not set
# CONFIG_SND_SOC_WM8741 is not set
# CONFIG_SND_SOC_WM8750 is not set
# CONFIG_SND_SOC_WM8753 is not set
# CONFIG_SND_SOC_WM8770 is not set
# CONFIG_SND_SOC_WM8776 is not set
# CONFIG_SND_SOC_WM8804_I2C is not set
# CONFIG_SND_SOC_WM8804_SPI is not set
# CONFIG_SND_SOC_WM8903 is not set
# CONFIG_SND_SOC_WM8962 is not set
# CONFIG_SND_SOC_WM8974 is not set
# CONFIG_SND_SOC_WM8978 is not set
# CONFIG_SND_SOC_TPA6130A2 is not set
# CONFIG_SND_SIMPLE_CARD is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
#
# HID support
#
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
# CONFIG_HIDRAW is not set
CONFIG_UHID=m
CONFIG_HID_GENERIC=y
#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
CONFIG_HID_ACRUX=m
# CONFIG_HID_ACRUX_FF is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_APPLEIR is not set
CONFIG_HID_AUREAL=m
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CORSAIR is not set
CONFIG_HID_PRODIKEYS=m
# CONFIG_HID_CP2112 is not set
# CONFIG_HID_CYPRESS is not set
CONFIG_HID_DRAGONRISE=m
# CONFIG_DRAGONRISE_FF is not set
CONFIG_HID_EMS_FF=m
CONFIG_HID_ELECOM=m
# CONFIG_HID_ELO is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
CONFIG_HID_HOLTEK=m
CONFIG_HOLTEK_FF=y
# CONFIG_HID_GT683R is not set
CONFIG_HID_KEYTOUCH=y
# CONFIG_HID_KYE is not set
CONFIG_HID_UCLOGIC=m
CONFIG_HID_WALTOP=m
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
CONFIG_HID_TWINHAN=m
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
CONFIG_HID_MULTITOUCH=y
# CONFIG_HID_NTRIG is not set
CONFIG_HID_ORTEK=m
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PENMOUNT is not set
# CONFIG_HID_PETALYNX is not set
CONFIG_HID_PICOLCD=m
# CONFIG_HID_PICOLCD_FB is not set
# CONFIG_HID_PICOLCD_BACKLIGHT is not set
# CONFIG_HID_PICOLCD_LCD is not set
# CONFIG_HID_PICOLCD_LEDS is not set
# CONFIG_HID_PICOLCD_CIR is not set
# CONFIG_HID_PLANTRONICS is not set
CONFIG_HID_PRIMAX=m
CONFIG_HID_ROCCAT=m
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SONY is not set
CONFIG_HID_SPEEDLINK=m
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
CONFIG_HID_GREENASIA=m
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=m
# CONFIG_SMARTJOYPLUS_FF is not set
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=m
# CONFIG_HID_THINGM is not set
CONFIG_HID_THRUSTMASTER=m
# CONFIG_THRUSTMASTER_FF is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
CONFIG_HID_ZEROPLUS=m
# CONFIG_ZEROPLUS_FF is not set
CONFIG_HID_ZYDACRON=m
CONFIG_HID_SENSOR_HUB=m
# CONFIG_HID_SENSOR_CUSTOM_SENSOR is not set
#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
CONFIG_USB_HIDDEV=y
#
# I2C HID support
#
CONFIG_I2C_HID=y
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_PCI=y
CONFIG_USB_XHCI_PLATFORM=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_BCMA is not set
# CONFIG_USB_HCD_TEST_MODE is not set
#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
CONFIG_USB_WDM=m
# CONFIG_USB_TMC is not set
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
CONFIG_USB_STORAGE_REALTEK=m
CONFIG_REALTEK_AUTOPM=y
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_MUSB_HDRC is not set
CONFIG_USB_DWC3=y
# CONFIG_USB_DWC3_HOST is not set
CONFIG_USB_DWC3_GADGET=y
# CONFIG_USB_DWC3_DUAL_ROLE is not set
#
# Platform Glue Driver Support
#
CONFIG_USB_DWC3_PCI=y
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set
#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_CONSOLE=y
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_SIMPLE=m
CONFIG_USB_SERIAL_AIRCABLE=m
CONFIG_USB_SERIAL_ARK3116=m
CONFIG_USB_SERIAL_BELKIN=m
CONFIG_USB_SERIAL_CH341=m
CONFIG_USB_SERIAL_WHITEHEAT=m
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m
CONFIG_USB_SERIAL_CP210X=y
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=y
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
CONFIG_USB_SERIAL_EDGEPORT=m
CONFIG_USB_SERIAL_EDGEPORT_TI=m
# CONFIG_USB_SERIAL_F81232 is not set
CONFIG_USB_SERIAL_GARMIN=m
CONFIG_USB_SERIAL_IPW=m
CONFIG_USB_SERIAL_IUU=m
CONFIG_USB_SERIAL_KEYSPAN_PDA=m
CONFIG_USB_SERIAL_KEYSPAN=m
CONFIG_USB_SERIAL_KEYSPAN_MPR=y
CONFIG_USB_SERIAL_KEYSPAN_USA28=y
CONFIG_USB_SERIAL_KEYSPAN_USA28X=y
CONFIG_USB_SERIAL_KEYSPAN_USA28XA=y
CONFIG_USB_SERIAL_KEYSPAN_USA28XB=y
CONFIG_USB_SERIAL_KEYSPAN_USA19=y
CONFIG_USB_SERIAL_KEYSPAN_USA18X=y
CONFIG_USB_SERIAL_KEYSPAN_USA19W=y
CONFIG_USB_SERIAL_KEYSPAN_USA19QW=y
CONFIG_USB_SERIAL_KEYSPAN_USA19QI=y
CONFIG_USB_SERIAL_KEYSPAN_USA49W=y
CONFIG_USB_SERIAL_KEYSPAN_USA49WLC=y
CONFIG_USB_SERIAL_KLSI=m
CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
# CONFIG_USB_SERIAL_METRO is not set
CONFIG_USB_SERIAL_MOS7720=m
# CONFIG_USB_SERIAL_MOS7715_PARPORT is not set
CONFIG_USB_SERIAL_MOS7840=m
# CONFIG_USB_SERIAL_MXUPORT is not set
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=y
CONFIG_USB_SERIAL_OTI6858=m
# CONFIG_USB_SERIAL_QCAUX is not set
CONFIG_USB_SERIAL_QUALCOMM=m
# CONFIG_USB_SERIAL_SPCP8X5 is not set
CONFIG_USB_SERIAL_SAFE=m
CONFIG_USB_SERIAL_SAFE_PADDED=y
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_SYMBOL=m
CONFIG_USB_SERIAL_TI=m
CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_WWAN=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
# CONFIG_USB_SERIAL_OPTICON is not set
# CONFIG_USB_SERIAL_XSENS_MT is not set
# CONFIG_USB_SERIAL_WISHBONE is not set
CONFIG_USB_SERIAL_SSU100=m
CONFIG_USB_SERIAL_QT2=m
CONFIG_USB_SERIAL_DEBUG=m
#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
CONFIG_USB_EZUSB_FX2=y
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set
#
# USB Physical Layer drivers
#
CONFIG_USB_PHY=y
CONFIG_NOP_USB_XCEIV=y
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
# CONFIG_USB_GADGET_DEBUG_FS is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2
# CONFIG_U_SERIAL_CONSOLE is not set
#
# USB Peripheral Controller
#
# CONFIG_USB_FOTG210_UDC is not set
# CONFIG_USB_GR_UDC is not set
# CONFIG_USB_R8A66597 is not set
# CONFIG_USB_PXA27X is not set
# CONFIG_USB_MV_UDC is not set
# CONFIG_USB_MV_U3D is not set
# CONFIG_USB_M66592 is not set
# CONFIG_USB_BDC_UDC is not set
# CONFIG_USB_AMD5536UDC is not set
# CONFIG_USB_NET2272 is not set
# CONFIG_USB_NET2280 is not set
# CONFIG_USB_GOKU is not set
CONFIG_USB_EG20T=y
# CONFIG_USB_DUMMY_HCD is not set
CONFIG_USB_LIBCOMPOSITE=m
CONFIG_USB_F_ACM=m
CONFIG_USB_F_SS_LB=m
CONFIG_USB_U_SERIAL=m
CONFIG_USB_U_ETHER=m
CONFIG_USB_F_SERIAL=m
CONFIG_USB_F_OBEX=m
CONFIG_USB_F_NCM=m
CONFIG_USB_F_ECM=m
CONFIG_USB_F_SUBSET=m
CONFIG_USB_F_RNDIS=m
CONFIG_USB_F_MASS_STORAGE=m
CONFIG_USB_F_FS=m
CONFIG_USB_F_UAC2=m
CONFIG_USB_F_UVC=m
CONFIG_USB_F_MIDI=m
CONFIG_USB_F_HID=m
CONFIG_USB_F_PRINTER=m
# CONFIG_USB_CONFIGFS is not set
CONFIG_USB_ZERO=m
CONFIG_USB_AUDIO=m
# CONFIG_GADGET_UAC1 is not set
CONFIG_USB_ETH=m
CONFIG_USB_ETH_RNDIS=y
# CONFIG_USB_ETH_EEM is not set
CONFIG_USB_G_NCM=m
CONFIG_USB_GADGETFS=m
CONFIG_USB_FUNCTIONFS=m
# CONFIG_USB_FUNCTIONFS_ETH is not set
# CONFIG_USB_FUNCTIONFS_RNDIS is not set
CONFIG_USB_FUNCTIONFS_GENERIC=y
CONFIG_USB_MASS_STORAGE=m
CONFIG_USB_G_SERIAL=m
CONFIG_USB_MIDI_GADGET=m
CONFIG_USB_G_PRINTER=m
CONFIG_USB_CDC_COMPOSITE=m
CONFIG_USB_G_ACM_MS=m
CONFIG_USB_G_MULTI=m
CONFIG_USB_G_MULTI_RNDIS=y
# CONFIG_USB_G_MULTI_CDC is not set
CONFIG_USB_G_HID=m
CONFIG_USB_G_DBGP=m
# CONFIG_USB_G_DBGP_PRINTK is not set
CONFIG_USB_G_DBGP_SERIAL=y
CONFIG_USB_G_WEBCAM=m
# CONFIG_USB_LED_TRIG is not set
# CONFIG_UWB is not set
CONFIG_MMC=y
# CONFIG_MMC_DEBUG is not set
#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_MINORS=16
CONFIG_MMC_BLOCK_BOUNCE=y
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PCI=y
CONFIG_MMC_RICOH_MMC=y
CONFIG_MMC_SDHCI_ACPI=y
# CONFIG_MMC_SDHCI_PLTFM is not set
CONFIG_MMC_WBSD=m
CONFIG_MMC_TIFM_SD=m
CONFIG_MMC_SPI=m
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
# CONFIG_MMC_VUB300 is not set
CONFIG_MMC_USHC=y
# CONFIG_MMC_USDHI6ROL0 is not set
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
#
# LED drivers
#
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
CONFIG_LEDS_GPIO=y
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_LP5523 is not set
# CONFIG_LEDS_LP5562 is not set
# CONFIG_LEDS_LP8501 is not set
# CONFIG_LEDS_LP8860 is not set
# CONFIG_LEDS_CLEVO_MAIL is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=m
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_ONESHOT=y
# CONFIG_LEDS_TRIGGER_IDE_DISK is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_BACKLIGHT=y
CONFIG_LEDS_TRIGGER_CPU=y
CONFIG_LEDS_TRIGGER_GPIO=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=m
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
# CONFIG_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12057 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
# CONFIG_RTC_DRV_RV8803 is not set
#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_DS3234 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_MCP795 is not set
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
#
# on-CPU RTC drivers
#
#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_ACPI=y
# CONFIG_INTEL_IDMA64 is not set
CONFIG_INTEL_IOATDMA=m
CONFIG_DW_DMAC_CORE=m
CONFIG_DW_DMAC=m
CONFIG_DW_DMAC_PCI=m
#
# DMA Clients
#
# CONFIG_ASYNC_TX_DMA is not set
# CONFIG_DMATEST is not set
CONFIG_DMA_ENGINE_RAID=y
CONFIG_DCA=m
# CONFIG_AUXDISPLAY is not set
CONFIG_UIO=m
CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV_GENIRQ=m
CONFIG_UIO_DMEM_GENIRQ=m
# CONFIG_UIO_AEC is not set
# CONFIG_UIO_SERCOS3 is not set
CONFIG_UIO_PCI_GENERIC=m
# CONFIG_UIO_NETX is not set
# CONFIG_UIO_PRUSS is not set
# CONFIG_UIO_MF624 is not set
CONFIG_VFIO_IOMMU_TYPE1=y
CONFIG_VFIO_VIRQFD=y
CONFIG_VFIO=y
CONFIG_VFIO_NOIOMMU=y
CONFIG_VFIO_PCI=y
CONFIG_VFIO_PCI_VGA=y
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_IRQ_BYPASS_MANAGER=y
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=y
#
# Virtio drivers
#
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
# CONFIG_VIRTIO_BALLOON is not set
# CONFIG_VIRTIO_INPUT is not set
CONFIG_VIRTIO_MMIO=m
CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
CONFIG_STAGING=y
# CONFIG_SLICOSS is not set
# CONFIG_PRISM2_USB is not set
# CONFIG_COMEDI is not set
# CONFIG_PANEL is not set
# CONFIG_RTL8192U is not set
# CONFIG_RTLLIB is not set
# CONFIG_R8712U is not set
CONFIG_R8188EU=m
CONFIG_88EU_AP_MODE=y
# CONFIG_R8723AU is not set
# CONFIG_RTS5208 is not set
# CONFIG_VT6655 is not set
# CONFIG_VT6656 is not set
#
# IIO staging drivers
#
#
# Accelerometers
#
# CONFIG_ADIS16201 is not set
# CONFIG_ADIS16203 is not set
# CONFIG_ADIS16204 is not set
# CONFIG_ADIS16209 is not set
# CONFIG_ADIS16220 is not set
# CONFIG_ADIS16240 is not set
# CONFIG_LIS3L02DQ is not set
# CONFIG_SCA3000 is not set
#
# Analog to digital converters
#
# CONFIG_AD7606 is not set
# CONFIG_AD7780 is not set
# CONFIG_AD7816 is not set
# CONFIG_AD7192 is not set
# CONFIG_AD7280 is not set
#
# Analog digital bi-direction converters
#
# CONFIG_ADT7316 is not set
#
# Capacitance to digital converters
#
# CONFIG_AD7150 is not set
# CONFIG_AD7152 is not set
# CONFIG_AD7746 is not set
#
# Direct Digital Synthesis
#
# CONFIG_AD9832 is not set
# CONFIG_AD9834 is not set
#
# Digital gyroscope sensors
#
# CONFIG_ADIS16060 is not set
#
# Network Analyzer, Impedance Converters
#
# CONFIG_AD5933 is not set
#
# Light sensors
#
# CONFIG_SENSORS_ISL29018 is not set
# CONFIG_SENSORS_ISL29028 is not set
# CONFIG_TSL2583 is not set
# CONFIG_TSL2x7x is not set
#
# Magnetometer sensors
#
# CONFIG_SENSORS_HMC5843_I2C is not set
# CONFIG_SENSORS_HMC5843_SPI is not set
#
# Active energy metering IC
#
# CONFIG_ADE7753 is not set
# CONFIG_ADE7754 is not set
# CONFIG_ADE7758 is not set
# CONFIG_ADE7759 is not set
# CONFIG_ADE7854 is not set
#
# Resolver to digital converters
#
# CONFIG_AD2S90 is not set
# CONFIG_AD2S1200 is not set
# CONFIG_AD2S1210 is not set
#
# Triggers - standalone
#
# CONFIG_IIO_PERIODIC_RTC_TRIGGER is not set
# CONFIG_FB_SM750 is not set
# CONFIG_FB_XGI is not set
#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4=m
# CONFIG_STAGING_MEDIA is not set
#
# Android
#
# CONFIG_WIMAX_GDM72XX is not set
# CONFIG_LTE_GDM724X is not set
# CONFIG_LUSTRE_FS is not set
# CONFIG_DGNC is not set
# CONFIG_DGAP is not set
# CONFIG_GS_FPGABOOT is not set
# CONFIG_CRYPTO_SKEIN is not set
# CONFIG_UNISYSSPAR is not set
# CONFIG_FB_TFT is not set
# CONFIG_WILC1000_SDIO is not set
# CONFIG_WILC1000_SPI is not set
# CONFIG_MOST is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACERHDF is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_DELL_SMO8800 is not set
# CONFIG_DELL_RBTN is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_AMILO_RFKILL is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_HP_WIRELESS is not set
# CONFIG_MSI_LAPTOP is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_COMPAL_LAPTOP is not set
# CONFIG_SONY_LAPTOP is not set
# CONFIG_IDEAPAD_LAPTOP is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_SENSORS_HDAPS is not set
CONFIG_INTEL_MENLOW=m
# CONFIG_EEEPC_LAPTOP is not set
# CONFIG_ASUS_WIRELESS is not set
# CONFIG_ACPI_WMI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_INTEL_HID_EVENT is not set
CONFIG_INTEL_IPS=m
# CONFIG_IBM_RTL is not set
# CONFIG_SAMSUNG_LAPTOP is not set
CONFIG_INTEL_OAKTRAIL=m
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_APPLE_GMUX is not set
CONFIG_INTEL_RST=m
CONFIG_INTEL_SMARTCONNECT=m
# CONFIG_PVPANIC is not set
# CONFIG_INTEL_PMC_IPC is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
# CONFIG_INTEL_PUNIT_IPC is not set
# CONFIG_CHROME_PLATFORMS is not set
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
#
# Common Clock Framework
#
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_NXP is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_COMMON_CLK_PXA is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
#
# Hardware Spinlock drivers
#
#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# CONFIG_ATMEL_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
#
# Generic IOMMU Pagetable Support
#
CONFIG_IOMMU_IOVA=y
# CONFIG_AMD_IOMMU is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_SVM is not set
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
# CONFIG_IRQ_REMAP is not set
#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
#
# SOC (System On Chip) specific Drivers
#
# CONFIG_SUNXI_SRAM is not set
# CONFIG_SOC_TI is not set
CONFIG_PM_DEVFREQ=y
#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=m
CONFIG_DEVFREQ_GOV_PERFORMANCE=m
CONFIG_DEVFREQ_GOV_POWERSAVE=m
CONFIG_DEVFREQ_GOV_USERSPACE=m
#
# DEVFREQ Drivers
#
# CONFIG_PM_DEVFREQ_EVENT is not set
CONFIG_EXTCON=m
#
# Extcon Device Drivers
#
# CONFIG_EXTCON_ADC_JACK is not set
CONFIG_EXTCON_GPIO=m
# CONFIG_EXTCON_MAX3355 is not set
# CONFIG_EXTCON_RT8973A is not set
# CONFIG_EXTCON_SM5502 is not set
# CONFIG_EXTCON_USB_GPIO is not set
# CONFIG_MEMORY is not set
CONFIG_IIO=m
CONFIG_IIO_BUFFER=y
CONFIG_IIO_BUFFER_CB=m
CONFIG_IIO_KFIFO_BUF=m
CONFIG_IIO_TRIGGERED_BUFFER=m
# CONFIG_IIO_CONFIGFS is not set
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
# CONFIG_IIO_SW_TRIGGER is not set
#
# Accelerometers
#
CONFIG_BMA180=m
# CONFIG_BMC150_ACCEL is not set
CONFIG_HID_SENSOR_ACCEL_3D=m
CONFIG_IIO_ST_ACCEL_3AXIS=m
CONFIG_IIO_ST_ACCEL_I2C_3AXIS=m
CONFIG_IIO_ST_ACCEL_SPI_3AXIS=m
CONFIG_KXSD9=m
# CONFIG_KXCJK1013 is not set
# CONFIG_MMA7455_I2C is not set
# CONFIG_MMA7455_SPI is not set
# CONFIG_MMA8452 is not set
# CONFIG_MMA9551 is not set
# CONFIG_MMA9553 is not set
# CONFIG_MXC4005 is not set
# CONFIG_MXC6255 is not set
# CONFIG_STK8312 is not set
# CONFIG_STK8BA50 is not set
#
# Analog to digital converters
#
CONFIG_AD_SIGMA_DELTA=m
CONFIG_AD7266=m
# CONFIG_AD7291 is not set
CONFIG_AD7298=m
CONFIG_AD7476=m
CONFIG_AD7791=m
CONFIG_AD7793=m
CONFIG_AD7887=m
CONFIG_AD7923=m
# CONFIG_AD799X is not set
# CONFIG_HI8435 is not set
# CONFIG_INA2XX_ADC is not set
# CONFIG_MAX1027 is not set
CONFIG_MAX1363=m
CONFIG_MCP320X=m
CONFIG_MCP3422=m
CONFIG_NAU7802=m
CONFIG_TI_ADC081C=m
# CONFIG_TI_ADC128S052 is not set
#
# Amplifiers
#
CONFIG_AD8366=m
#
# Chemical Sensors
#
# CONFIG_IAQCORE is not set
# CONFIG_VZ89X is not set
#
# Hid Sensor IIO Common
#
CONFIG_HID_SENSOR_IIO_COMMON=m
CONFIG_HID_SENSOR_IIO_TRIGGER=m
#
# SSP Sensor Common
#
# CONFIG_IIO_SSP_SENSORHUB is not set
CONFIG_IIO_ST_SENSORS_I2C=m
CONFIG_IIO_ST_SENSORS_SPI=m
CONFIG_IIO_ST_SENSORS_CORE=m
#
# Digital to analog converters
#
CONFIG_AD5064=m
CONFIG_AD5360=m
CONFIG_AD5380=m
CONFIG_AD5421=m
CONFIG_AD5446=m
CONFIG_AD5449=m
CONFIG_AD5504=m
CONFIG_AD5624R_SPI=m
CONFIG_AD5686=m
CONFIG_AD5755=m
CONFIG_AD5764=m
CONFIG_AD5791=m
CONFIG_AD7303=m
# CONFIG_M62332 is not set
CONFIG_MAX517=m
CONFIG_MCP4725=m
# CONFIG_MCP4922 is not set
#
# IIO dummy driver
#
# CONFIG_IIO_SIMPLE_DUMMY is not set
#
# Frequency Synthesizers DDS/PLL
#
#
# Clock Generator/Distribution
#
CONFIG_AD9523=m
#
# Phase-Locked Loop (PLL) frequency synthesizers
#
CONFIG_ADF4350=m
#
# Digital gyroscope sensors
#
CONFIG_ADIS16080=m
CONFIG_ADIS16130=m
CONFIG_ADIS16136=m
CONFIG_ADIS16260=m
CONFIG_ADXRS450=m
# CONFIG_BMG160 is not set
CONFIG_HID_SENSOR_GYRO_3D=m
CONFIG_IIO_ST_GYRO_3AXIS=m
CONFIG_IIO_ST_GYRO_I2C_3AXIS=m
CONFIG_IIO_ST_GYRO_SPI_3AXIS=m
CONFIG_ITG3200=m
#
# Health sensors
#
# CONFIG_MAX30100 is not set
#
# Humidity sensors
#
CONFIG_DHT11=m
# CONFIG_HDC100X is not set
# CONFIG_HTU21 is not set
# CONFIG_SI7005 is not set
# CONFIG_SI7020 is not set
#
# Inertial measurement units
#
CONFIG_ADIS16400=m
CONFIG_ADIS16480=m
# CONFIG_KMX61 is not set
CONFIG_INV_MPU6050_IIO=m
CONFIG_IIO_ADIS_LIB=m
CONFIG_IIO_ADIS_LIB_BUFFER=y
#
# Light sensors
#
# CONFIG_ACPI_ALS is not set
CONFIG_ADJD_S311=m
# CONFIG_AL3320A is not set
CONFIG_APDS9300=m
# CONFIG_APDS9960 is not set
# CONFIG_BH1750 is not set
CONFIG_CM32181=m
# CONFIG_CM3232 is not set
# CONFIG_CM3323 is not set
CONFIG_CM36651=m
CONFIG_GP2AP020A00F=m
# CONFIG_ISL29125 is not set
CONFIG_HID_SENSOR_ALS=m
# CONFIG_HID_SENSOR_PROX is not set
# CONFIG_JSA1212 is not set
# CONFIG_RPR0521 is not set
# CONFIG_LTR501 is not set
# CONFIG_OPT3001 is not set
# CONFIG_PA12203001 is not set
# CONFIG_STK3310 is not set
# CONFIG_TCS3414 is not set
CONFIG_TCS3472=m
CONFIG_SENSORS_TSL2563=m
CONFIG_TSL4531=m
# CONFIG_US5182D is not set
CONFIG_VCNL4000=m
#
# Magnetometer sensors
#
CONFIG_AK8975=m
# CONFIG_AK09911 is not set
# CONFIG_BMC150_MAGN is not set
CONFIG_MAG3110=m
CONFIG_HID_SENSOR_MAGNETOMETER_3D=m
# CONFIG_MMC35240 is not set
CONFIG_IIO_ST_MAGN_3AXIS=m
CONFIG_IIO_ST_MAGN_I2C_3AXIS=m
CONFIG_IIO_ST_MAGN_SPI_3AXIS=m
#
# Inclinometer sensors
#
CONFIG_HID_SENSOR_INCLINOMETER_3D=m
# CONFIG_HID_SENSOR_DEVICE_ROTATION is not set
#
# Triggers - standalone
#
CONFIG_IIO_INTERRUPT_TRIGGER=m
CONFIG_IIO_SYSFS_TRIGGER=m
#
# Digital potentiometers
#
# CONFIG_MCP4531 is not set
#
# Pressure sensors
#
# CONFIG_BMP280 is not set
# CONFIG_HID_SENSOR_PRESS is not set
# CONFIG_MPL115 is not set
CONFIG_MPL3115=m
# CONFIG_MS5611 is not set
# CONFIG_MS5637 is not set
CONFIG_IIO_ST_PRESS=m
CONFIG_IIO_ST_PRESS_I2C=m
CONFIG_IIO_ST_PRESS_SPI=m
# CONFIG_T5403 is not set
#
# Lightning sensors
#
# CONFIG_AS3935 is not set
#
# Proximity sensors
#
# CONFIG_LIDAR_LITE_V2 is not set
# CONFIG_SX9500 is not set
#
# Temperature sensors
#
# CONFIG_MLX90614 is not set
CONFIG_TMP006=m
# CONFIG_TSYS01 is not set
# CONFIG_TSYS02D is not set
CONFIG_NTB=m
# CONFIG_NTB_AMD is not set
# CONFIG_NTB_INTEL is not set
# CONFIG_NTB_PINGPONG is not set
# CONFIG_NTB_TOOL is not set
# CONFIG_NTB_PERF is not set
# CONFIG_NTB_TRANSPORT is not set
# CONFIG_VME_BUS is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
CONFIG_PWM_LPSS=m
CONFIG_PWM_LPSS_PCI=m
CONFIG_PWM_LPSS_PLATFORM=m
# CONFIG_PWM_PCA9685 is not set
CONFIG_ARM_GIC_MAX_NR=1
# CONFIG_TS4800_IRQ is not set
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set
#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
CONFIG_POWERCAP=y
CONFIG_INTEL_RAPL=y
# CONFIG_MCB is not set
#
# Performance monitor support
#
CONFIG_RAS=y
# CONFIG_THUNDERBOLT is not set
#
# Android
#
# CONFIG_ANDROID is not set
CONFIG_LIBNVDIMM=m
CONFIG_BLK_DEV_PMEM=m
CONFIG_ND_BLK=m
CONFIG_ND_CLAIM=y
CONFIG_ND_BTT=m
CONFIG_BTT=y
# CONFIG_NVMEM is not set
# CONFIG_STM is not set
# CONFIG_STM_DUMMY is not set
# CONFIG_STM_SOURCE_CONSOLE is not set
# CONFIG_INTEL_TH is not set
#
# FPGA Configuration Support
#
# CONFIG_FPGA is not set
#
# Firmware Drivers
#
# CONFIG_EDD is not set
CONFIG_FIRMWARE_MEMMAP=y
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=y
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT_FIND is not set
# CONFIG_GOOGLE_FIRMWARE is not set
#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=y
CONFIG_EFI_ESRT=y
CONFIG_EFI_VARS_PSTORE=y
# CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE is not set
CONFIG_EFI_RUNTIME_MAP=y
# CONFIG_EFI_FAKE_MEMMAP is not set
CONFIG_EFI_RUNTIME_WRAPPERS=y
CONFIG_UEFI_CPER=y
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
# CONFIG_EXT2_FS_SECURITY is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_ENCRYPTION is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=m
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
# CONFIG_REISERFS_FS_SECURITY is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
CONFIG_BTRFS_FS=y
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_FS_DAX is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_MANDATORY_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
# CONFIG_FANOTIFY_ACCESS_PERMISSIONS is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
# CONFIG_OVERLAY_FS is not set
#
# Caches
#
CONFIG_FSCACHE=m
CONFIG_FSCACHE_STATS=y
# CONFIG_FSCACHE_HISTOGRAM is not set
# CONFIG_FSCACHE_DEBUG is not set
# CONFIG_FSCACHE_OBJECT_LIST is not set
# CONFIG_CACHEFILES is not set
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=m
CONFIG_EFIVAR_FS=y
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
CONFIG_ECRYPT_FS=m
# CONFIG_ECRYPT_FS_MESSAGING is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_FILE_CACHE=y
# CONFIG_SQUASHFS_FILE_DIRECT is not set
CONFIG_SQUASHFS_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_DECOMP_MULTI is not set
# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZ4 is not set
CONFIG_SQUASHFS_LZO=y
# CONFIG_SQUASHFS_XZ is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
CONFIG_MINIX_FS=m
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
CONFIG_ROMFS_FS=m
CONFIG_ROMFS_BACKED_BY_BLOCK=y
CONFIG_ROMFS_ON_BLOCK=y
CONFIG_PSTORE=y
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
# CONFIG_PSTORE_RAM is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
CONFIG_NFS_V4=y
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
# CONFIG_NFS_V4_2 is not set
CONFIG_PNFS_FILE_LAYOUT=y
CONFIG_PNFS_BLOCK=y
CONFIG_PNFS_FLEXFILE_LAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
# CONFIG_NFSD_PNFS is not set
# CONFIG_NFSD_V4_SECURITY_LABEL is not set
# CONFIG_NFSD_FAULT_INJECTION is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_SUNRPC_BACKCHANNEL=y
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
# CONFIG_CIFS_STATS is not set
CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
# CONFIG_CIFS_ACL is not set
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
CONFIG_CIFS_DFS_UPCALL=y
CONFIG_CIFS_SMB2=y
# CONFIG_CIFS_SMB311 is not set
CONFIG_CIFS_FSCACHE=y
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_9P_FS=y
# CONFIG_9P_FS_POSIX_ACL is not set
# CONFIG_9P_FS_SECURITY is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=m
CONFIG_NLS_MAC_ICELAND=m
CONFIG_NLS_MAC_INUIT=m
CONFIG_NLS_MAC_ROMANIAN=m
CONFIG_NLS_MAC_TURKISH=m
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_REDUCED=y
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_GDB_SCRIPTS is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
CONFIG_UNUSED_SYMBOLS=y
# CONFIG_PAGE_OWNER is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_HAVE_ARCH_KMEMCHECK=y
CONFIG_HAVE_ARCH_KASAN=y
# CONFIG_KASAN is not set
CONFIG_DEBUG_SHIRQ=y
#
# Debug Lockups and Hangs
#
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_TIMEKEEPING is not set
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_PREEMPT=y
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
CONFIG_DEBUG_NOTIFIERS=y
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
# CONFIG_PROVE_RCU is not set
CONFIG_SPARSE_RCU_POINTER=y
# CONFIG_TORTURE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=60
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_LATENCYTOP=y
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_RING_BUFFER_ALLOW_SWAP=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_PREEMPT_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
# CONFIG_STACK_TRACER is not set
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KPROBE_EVENT=y
CONFIG_UPROBE_EVENT=y
CONFIG_PROBE_EVENTS=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
# CONFIG_FUNCTION_PROFILER is not set
CONFIG_FTRACE_MCOUNT_RECORD=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_MMIOTRACE is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
# CONFIG_RING_BUFFER_BENCHMARK is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
# CONFIG_TRACE_ENUM_MAP_FILE is not set
CONFIG_TRACING_EVENTS_GPIO=y
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_MEMTEST is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_KGDB=y
CONFIG_KGDB_SERIAL_CONSOLE=y
# CONFIG_KGDB_TESTS is not set
CONFIG_KGDB_LOW_LEVEL_TRAP=y
CONFIG_KGDB_KDB=y
CONFIG_KDB_DEFAULT_ENABLE=0x1
CONFIG_KDB_KEYBOARD=y
CONFIG_KDB_CONTINUE_CATASTROPHIC=0
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
# CONFIG_UBSAN is not set
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
# CONFIG_IO_STRICT_DEVMEM is not set
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
# CONFIG_EARLY_PRINTK_DBGP is not set
# CONFIG_EARLY_PRINTK_EFI is not set
# CONFIG_X86_PTDUMP_CORE is not set
# CONFIG_X86_PTDUMP is not set
# CONFIG_EFI_PGT_DUMP is not set
CONFIG_DEBUG_RODATA=y
CONFIG_DEBUG_RODATA_TEST=y
# CONFIG_DEBUG_WX is not set
CONFIG_DEBUG_SET_MODULE_RONX=y
# CONFIG_DEBUG_NX_TEST is not set
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
# CONFIG_DEBUG_BOOT_PARAMS is not set
# CONFIG_CPA_DEBUG is not set
CONFIG_OPTIMIZE_INLINING=y
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_STATIC_CPU_HAS is not set
CONFIG_X86_DEBUG_FPU=y
# CONFIG_PUNIT_ATOM_DEBUG is not set
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
CONFIG_TRUSTED_KEYS=y
CONFIG_ENCRYPTED_KEYS=m
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
# CONFIG_SECURITY_NETWORK is not set
# CONFIG_SECURITY_PATH is not set
# CONFIG_INTEL_TXT is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_YAMA is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
# CONFIG_IMA is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_XOR_BLOCKS=y
CONFIG_ASYNC_CORE=y
CONFIG_ASYNC_MEMCPY=y
CONFIG_ASYNC_XOR=y
CONFIG_ASYNC_PQ=y
CONFIG_ASYNC_RAID6_RECOV=y
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_PCOMP=m
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_AKCIPHER2=y
# CONFIG_CRYPTO_RSA is not set
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=y
# CONFIG_CRYPTO_MCRYPTD is not set
CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_ABLK_HELPER=y
CONFIG_CRYPTO_GLUE_HELPER_X86=y
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=m
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_SEQIV=m
CONFIG_CRYPTO_ECHAINIV=y
#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=m
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=y
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=y
# CONFIG_CRYPTO_KEYWRAP is not set
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=m
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRC32_PCLMUL is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
CONFIG_CRYPTO_GHASH=m
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_POLY1305_X86_64 is not set
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA1_SSSE3=y
CONFIG_CRYPTO_SHA256_SSSE3=y
CONFIG_CRYPTO_SHA512_SSSE3=y
# CONFIG_CRYPTO_SHA1_MB is not set
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=y
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_X86_64=y
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=y
CONFIG_CRYPTO_BLOWFISH_X86_64=y
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAMELLIA_X86_64=y
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64=y
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64=y
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST5_AVX_X86_64=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_CAST6_AVX_X86_64=m
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
CONFIG_CRYPTO_SALSA20_X86_64=m
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_CHACHA20_X86_64 is not set
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_SERPENT_SSE2_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX_X86_64=y
CONFIG_CRYPTO_SERPENT_AVX2_X86_64=y
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=y
CONFIG_CRYPTO_TWOFISH_X86_64=y
CONFIG_CRYPTO_TWOFISH_X86_64_3WAY=y
CONFIG_CRYPTO_TWOFISH_AVX_X86_64=y
#
# Compression
#
CONFIG_CRYPTO_DEFLATE=m
CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_PADLOCK is not set
# CONFIG_CRYPTO_DEV_CCP is not set
# CONFIG_CRYPTO_DEV_QAT_DH895xCC is not set
# CONFIG_CRYPTO_DEV_QAT_C3XXX is not set
# CONFIG_CRYPTO_DEV_QAT_C62X is not set
# CONFIG_CRYPTO_DEV_QAT_DH895xCCVF is not set
# CONFIG_CRYPTO_DEV_QAT_C3XXXVF is not set
# CONFIG_CRYPTO_DEV_QAT_C62XVF is not set
CONFIG_ASYMMETRIC_KEY_TYPE=m
# CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE is not set
# CONFIG_PUBLIC_KEY_ALGO_RSA is not set
#
# Certificates for signature checking
#
# CONFIG_SYSTEM_TRUSTED_KEYRING is not set
CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_APIC_ARCHITECTURE=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=y
CONFIG_KVM_INTEL=y
# CONFIG_KVM_AMD is not set
# CONFIG_KVM_MMU_AUDIT is not set
# CONFIG_KVM_DEVICE_ASSIGNMENT is not set
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_RAID6_PQ=y
CONFIG_BITREVERSE=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC7=m
CONFIG_LIBCRC32C=y
CONFIG_CRC8=m
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_INTERVAL_TREE=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
CONFIG_CORDIC=m
CONFIG_DDR=y
# CONFIG_IRQ_POLL is not set
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_FONT_SUPPORT=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
CONFIG_FONT_7x14=y
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_6x10 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
CONFIG_FONT_10x18=y
# CONFIG_SG_SPLIT is not set
CONFIG_ARCH_HAS_SG_CHAIN=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_ARCH_HAS_MMIO_FLUSH=y
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-22 16:35 ` Chatre, Reinette
@ 2016-03-22 17:40 ` Paul E. McKenney
2016-03-22 21:04 ` Chatre, Reinette
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-22 17:40 UTC (permalink / raw)
To: Chatre, Reinette
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Tue, Mar 22, 2016 at 04:35:32PM +0000, Chatre, Reinette wrote:
> Hi Paul,
Hello, Reinette!
> On 2016-03-21, Paul E. McKenney wrote:
> > On Mon, Mar 21, 2016 at 09:22:30AM -0700, Jacob Pan wrote:
> >> On Fri, 18 Mar 2016 16:56:41 -0700
> >> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
> >>> On Fri, Mar 18, 2016 at 02:00:11PM -0700, Josh Triplett wrote:
> >>>> On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
> >
> > [ . . . ]
> >
> >>>> We're seeing a similar stall (~60 seconds) on an x86 development
> >>>> system here. Any luck tracking down the cause of this? If not, any
> >>>> suggestions for traces that might be helpful?
> >>>
> >>> The dmesg containing the stall, the kernel version, and the .config
> >>> would be helpful! Working on a torture test specific to this bug...
And thank you for the .config. Your kenrle version looks to be 4.5.0.
> >> +Reinette, she has the system that can reproduce the issue. I
> >> believe she is having some other problems with it at the moment. But
> >> the .config should be available. Version is v4.5.
> >
> > A couple of additional questions:
> >
> > 1. Is the test running on bare metal or virtualized? If the
> > latter, what is the host?
>
> Bare metal.
OK, you are ahead of me. Mine is virtualized.
> > 2. Does the workload involve CPU hotplug?
>
> No.
Again, you are ahead of me. Mine makes extremely heavy use of CPU hotplug.
> > 3. Are you seeing things like this in dmesg?
> >
> > "rcu_preempt kthread starved for 21033 jiffies"
> > "rcu_sched kthread starved for 32103 jiffies"
> > "rcu_bh kthread starved for 84031 jiffies"
> >
> > If not, you are probably facing some other bug, and should
> > proceed debugging as described in Documentation/RCU/stallwarn.txt.
>
> Below is a sample of what I see as captured with v4.5. The kernel configuration is attached.
>
> [ 135.456197] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 135.457729] 3-...: (0 ticks this GP) idle=722/0/0 softirq=5532/5532 fqs=0
> [ 135.459604] (detected by 2, t=60004 jiffies, g=2105, c=2104, q=165)
> [ 135.461318] Task dump for CPU 3:
> [ 135.461321] swapper/3 R running task 0 0 1 0x00200000
> [ 135.461325] 00000078560040e5 ffff88017846fed0 ffffffff818af2cc ffff880100000000
> [ 135.461330] 0000000600000003 ffff880178470000 ffff880072f32200 ffffffff822dcec0
> [ 135.461334] ffff88017846c000 ffff88017846c000 ffff88017846fee0 ffffffff818af517
> [ 135.461338] Call Trace:
> [ 135.461345] [<ffffffff818af2cc>] ? cpuidle_enter_state+0xfc/0x310
> [ 135.461349] [<ffffffff818af517>] ? cpuidle_enter+0x17/0x20
> [ 135.461353] [<ffffffff811515aa>] ? call_cpuidle+0x2a/0x40
> [ 135.461355] [<ffffffff8115197d>] ? cpu_startup_entry+0x28d/0x360
> [ 135.461360] [<ffffffff8108c874>] ? start_secondary+0x114/0x140
> [ 135.461365] rcu_preempt kthread starved for 60004 jiffies! g2105 c2104 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
And yes, it looks like you are seeing the same bug that I am tracing.
The kthread is blocked on a schedule_timeout_interruptible(). Given
default configuration, this would have a three-jiffy timeout.
You set CONFIG_RCU_CPU_STALL_TIMEOUT=60, which matches the 60004 jiffies
above. Is that value due to a distro setting or something? Mainline
uses CONFIG_RCU_CPU_STALL_TIMEOUT=21.
> [ 135.463965] rcu_preempt S ffff88017844fd68 0 7 2 0x00000000
> [ 135.463969] ffff88017844fd68 ffff88017dd8cc80 ffff880177ff0000 ffff880178443b80
> [ 135.463973] ffff880178450000 ffff88017844fda0 ffff88017dd8cc80 ffff88017dd8cc80
> [ 135.463977] 0000000000000003 ffff88017844fd80 ffffffff81ab031f 0000000100031504
> [ 135.463981] Call Trace:
> [ 135.463986] [<ffffffff81ab031f>] schedule+0x3f/0xa0
> [ 135.463989] [<ffffffff81ab42d7>] schedule_timeout+0x127/0x270
> [ 135.463993] [<ffffffff81171a50>] ? detach_if_pending+0x120/0x120
> [ 135.463997] [<ffffffff8116da5d>] rcu_gp_kthread+0x6bd/0xa30
> [ 135.464000] [<ffffffff81151390>] ? wake_atomic_t_function+0x70/0x70
> [ 135.464003] [<ffffffff8116d3a0>] ? force_qs_rnp+0x1b0/0x1b0
> [ 135.464006] [<ffffffff8112f846>] kthread+0xe6/0x100
> [ 135.464009] [<ffffffff8112f760>] ? kthread_worker_fn+0x190/0x190
> [ 135.464012] [<ffffffff81ab5c0f>] ret_from_fork+0x3f/0x70
> [ 135.464015] [<ffffffff8112f760>] ? kthread_worker_fn+0x190/0x190
How long does it take to reproduce this? If it reproduces in minutes
or hours, could you please boot with the following on the kernel command
line and dump the trace buffer shortly after the stall?
ftrace trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
If dumping manually shortly after the stall is at all non-trivial
(for example, if your reproduction time is many minute or hours),
I can supply some patches that automate this. Or you can pick
them up from -rcu:
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
Branch rcu/dev has these patches (and much else besides).
Thanx, Paul
PS: In case you are curious, when I enable those tracepoints, it
shows me that the timer is firing every three jiffies, as it
should, but that something happens between the sched_waking
and the IPI handler that should actually do the wakeup.
However, adding the traces significantly slows reproduction,
so I am writing a stress test specific to this bug to try to
speed things up, hopefully allowing more tracing to be added
while still retaining non-geologic reproduction times.
^ permalink raw reply [flat|nested] 79+ messages in thread
* RE: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-22 17:40 ` Paul E. McKenney
@ 2016-03-22 21:04 ` Chatre, Reinette
2016-03-22 21:19 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Chatre, Reinette @ 2016-03-22 21:04 UTC (permalink / raw)
To: paulmck
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
Hi Paul,
On 2016-03-22, Paul E. McKenney wrote:
> On Tue, Mar 22, 2016 at 04:35:32PM +0000, Chatre, Reinette wrote:
>> On 2016-03-21, Paul E. McKenney wrote:
>>> On Mon, Mar 21, 2016 at 09:22:30AM -0700, Jacob Pan wrote:
>>>> On Fri, 18 Mar 2016 16:56:41 -0700
>>>> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
>>>>> On Fri, Mar 18, 2016 at 02:00:11PM -0700, Josh Triplett wrote:
>>>>>> On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
>>>
>>> [ . . . ]
>>>
>>>>>> We're seeing a similar stall (~60 seconds) on an x86 development
>>>>>> system here. Any luck tracking down the cause of this? If not, any
>>>>>> suggestions for traces that might be helpful?
>>>>>
>>>>> The dmesg containing the stall, the kernel version, and the .config
>>>>> would be helpful! Working on a torture test specific to this bug...
>
> And thank you for the .config. Your kenrle version looks to be 4.5.0.
>
>>>> +Reinette, she has the system that can reproduce the issue. I
>>>> believe she is having some other problems with it at the moment. But
>>>> the .config should be available. Version is v4.5.
>>>
>>> A couple of additional questions:
>>>
>>> 1. Is the test running on bare metal or virtualized? If the
>>> latter, what is the host?
>>
>> Bare metal.
>
> OK, you are ahead of me. Mine is virtualized.
>
>>> 2. Does the workload involve CPU hotplug?
>>
>> No.
>
> Again, you are ahead of me. Mine makes extremely heavy use of CPU hotplug.
>
>>> 3. Are you seeing things like this in dmesg?
>>>
>>> "rcu_preempt kthread starved for 21033 jiffies"
>>> "rcu_sched kthread starved for 32103 jiffies"
>>> "rcu_bh kthread starved for 84031 jiffies"
>>>
>>> If not, you are probably facing some other bug, and should
>>> proceed debugging as described in Documentation/RCU/stallwarn.txt.
>>
>> Below is a sample of what I see as captured with v4.5. The kernel
>> configuration is attached.
>>
>> [ 135.456197] INFO: rcu_preempt detected stalls on CPUs/tasks: [
>> 135.457729] 3-...: (0 ticks this GP) idle=722/0/0 softirq=5532/5532
>> fqs=0 [ 135.459604] (detected by 2, t=60004 jiffies, g=2105, c=2104,
>> q=165) [ 135.461318] Task dump for CPU 3: [ 135.461321] swapper/3
>> R running task 0 0 1 0x00200000 [ 135.461325]
>> 00000078560040e5 ffff88017846fed0 ffffffff818af2cc ffff880100000000 [
>> 135.461330] 0000000600000003 ffff880178470000 ffff880072f32200
>> ffffffff822dcec0 [ 135.461334] ffff88017846c000 ffff88017846c000
>> ffff88017846fee0 ffffffff818af517 [ 135.461338] Call Trace: [
>> 135.461345] [<ffffffff818af2cc>] ? cpuidle_enter_state+0xfc/0x310 [
>> 135.461349] [<ffffffff818af517>] ? cpuidle_enter+0x17/0x20 [
>> 135.461353] [<ffffffff811515aa>] ? call_cpuidle+0x2a/0x40 [
>> 135.461355] [<ffffffff8115197d>] ? cpu_startup_entry+0x28d/0x360 [
>> 135.461360] [<ffffffff8108c874>] ? start_secondary+0x114/0x140 [
>> 135.461365] rcu_preempt kthread starved for 60004 jiffies! g2105 c2104
> f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
>
> And yes, it looks like you are seeing the same bug that I am tracing.
>
> The kthread is blocked on a schedule_timeout_interruptible(). Given
> default configuration, this would have a three-jiffy timeout.
>
> You set CONFIG_RCU_CPU_STALL_TIMEOUT=60, which matches the 60004 jiffies
> above. Is that value due to a distro setting or something? Mainline
> uses CONFIG_RCU_CPU_STALL_TIMEOUT=21.
Indeed ... this value originated from a Fedora configuration.
>> [ 135.463965] rcu_preempt S ffff88017844fd68 0 7 2
>> 0x00000000 [ 135.463969] ffff88017844fd68 ffff88017dd8cc80
>> ffff880177ff0000 ffff880178443b80 [ 135.463973] ffff880178450000
>> ffff88017844fda0 ffff88017dd8cc80 ffff88017dd8cc80 [ 135.463977]
>> 0000000000000003 ffff88017844fd80 ffffffff81ab031f 0000000100031504 [
>> 135.463981] Call Trace: [ 135.463986] [<ffffffff81ab031f>]
>> schedule+0x3f/0xa0 [ 135.463989] [<ffffffff81ab42d7>]
>> schedule_timeout+0x127/0x270 [ 135.463993] [<ffffffff81171a50>] ?
>> detach_if_pending+0x120/0x120 [ 135.463997] [<ffffffff8116da5d>]
>> rcu_gp_kthread+0x6bd/0xa30 [ 135.464000] [<ffffffff81151390>] ?
>> wake_atomic_t_function+0x70/0x70 [ 135.464003] [<ffffffff8116d3a0>] ?
>> force_qs_rnp+0x1b0/0x1b0 [ 135.464006] [<ffffffff8112f846>]
>> kthread+0xe6/0x100 [ 135.464009] [<ffffffff8112f760>] ?
>> kthread_worker_fn+0x190/0x190 [ 135.464012] [<ffffffff81ab5c0f>]
>> ret_from_fork+0x3f/0x70 [ 135.464015] [<ffffffff8112f760>] ?
>> kthread_worker_fn+0x190/0x190
>
> How long does it take to reproduce this? If it reproduces in minutes
> or hours, could you please boot with the following on the kernel command
> line and dump the trace buffer shortly after the stall?
>
> ftrace trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
The trace I provided above appeared after a few minutes and not again. On previous occasions I had to wait a few hours. I tried running with the above added to the kernel command line but I have not seen the trace yet. I will leave the system overnight but then may risk not capturing the data you need so ...
> If dumping manually shortly after the stall is at all non-trivial
> (for example, if your reproduction time is many minute or hours),
> I can supply some patches that automate this. Or you can pick
> them up from -rcu:
... could you please point me to the patches you refer to? Or would you like me to try with the entire kernel from rcu/dev?
>
> git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
>
> Branch rcu/dev has these patches (and much else besides).
>
> Thanx, Paul
>
> PS: In case you are curious, when I enable those tracepoints, it
> shows me that the timer is firing every three jiffies, as it
> should, but that something happens between the sched_waking
> and the IPI handler that should actually do the wakeup.
> However, adding the traces significantly slows reproduction,
> so I am writing a stress test specific to this bug to try to
> speed things up, hopefully allowing more tracing to be added
> while still retaining non-geologic reproduction times.
Thank you very much for these details.
Reinette
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-22 21:04 ` Chatre, Reinette
@ 2016-03-22 21:19 ` Paul E. McKenney
2016-03-23 17:15 ` Chatre, Reinette
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-22 21:19 UTC (permalink / raw)
To: Chatre, Reinette
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Tue, Mar 22, 2016 at 09:04:47PM +0000, Chatre, Reinette wrote:
> Hi Paul,
>
> On 2016-03-22, Paul E. McKenney wrote:
> > On Tue, Mar 22, 2016 at 04:35:32PM +0000, Chatre, Reinette wrote:
> >> On 2016-03-21, Paul E. McKenney wrote:
> >>> On Mon, Mar 21, 2016 at 09:22:30AM -0700, Jacob Pan wrote:
> >>>> On Fri, 18 Mar 2016 16:56:41 -0700
> >>>> "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
> >>>>> On Fri, Mar 18, 2016 at 02:00:11PM -0700, Josh Triplett wrote:
> >>>>>> On Thu, Feb 25, 2016 at 04:56:38PM -0800, Paul E. McKenney wrote:
> >>>
> >>> [ . . . ]
> >>>
> >>>>>> We're seeing a similar stall (~60 seconds) on an x86 development
> >>>>>> system here. Any luck tracking down the cause of this? If not, any
> >>>>>> suggestions for traces that might be helpful?
> >>>>>
> >>>>> The dmesg containing the stall, the kernel version, and the .config
> >>>>> would be helpful! Working on a torture test specific to this bug...
> >
> > And thank you for the .config. Your kenrle version looks to be 4.5.0.
> >
> >>>> +Reinette, she has the system that can reproduce the issue. I
> >>>> believe she is having some other problems with it at the moment. But
> >>>> the .config should be available. Version is v4.5.
> >>>
> >>> A couple of additional questions:
> >>>
> >>> 1. Is the test running on bare metal or virtualized? If the
> >>> latter, what is the host?
> >>
> >> Bare metal.
> >
> > OK, you are ahead of me. Mine is virtualized.
> >
> >>> 2. Does the workload involve CPU hotplug?
> >>
> >> No.
> >
> > Again, you are ahead of me. Mine makes extremely heavy use of CPU hotplug.
> >
> >>> 3. Are you seeing things like this in dmesg?
> >>>
> >>> "rcu_preempt kthread starved for 21033 jiffies"
> >>> "rcu_sched kthread starved for 32103 jiffies"
> >>> "rcu_bh kthread starved for 84031 jiffies"
> >>>
> >>> If not, you are probably facing some other bug, and should
> >>> proceed debugging as described in Documentation/RCU/stallwarn.txt.
> >>
> >> Below is a sample of what I see as captured with v4.5. The kernel
> >> configuration is attached.
> >>
> >> [ 135.456197] INFO: rcu_preempt detected stalls on CPUs/tasks: [
> >> 135.457729] 3-...: (0 ticks this GP) idle=722/0/0 softirq=5532/5532
> >> fqs=0 [ 135.459604] (detected by 2, t=60004 jiffies, g=2105, c=2104,
> >> q=165) [ 135.461318] Task dump for CPU 3: [ 135.461321] swapper/3
> >> R running task 0 0 1 0x00200000 [ 135.461325]
> >> 00000078560040e5 ffff88017846fed0 ffffffff818af2cc ffff880100000000 [
> >> 135.461330] 0000000600000003 ffff880178470000 ffff880072f32200
> >> ffffffff822dcec0 [ 135.461334] ffff88017846c000 ffff88017846c000
> >> ffff88017846fee0 ffffffff818af517 [ 135.461338] Call Trace: [
> >> 135.461345] [<ffffffff818af2cc>] ? cpuidle_enter_state+0xfc/0x310 [
> >> 135.461349] [<ffffffff818af517>] ? cpuidle_enter+0x17/0x20 [
> >> 135.461353] [<ffffffff811515aa>] ? call_cpuidle+0x2a/0x40 [
> >> 135.461355] [<ffffffff8115197d>] ? cpu_startup_entry+0x28d/0x360 [
> >> 135.461360] [<ffffffff8108c874>] ? start_secondary+0x114/0x140 [
> >> 135.461365] rcu_preempt kthread starved for 60004 jiffies! g2105 c2104
> > f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
> >
> > And yes, it looks like you are seeing the same bug that I am tracing.
> >
> > The kthread is blocked on a schedule_timeout_interruptible(). Given
> > default configuration, this would have a three-jiffy timeout.
> >
> > You set CONFIG_RCU_CPU_STALL_TIMEOUT=60, which matches the 60004 jiffies
> > above. Is that value due to a distro setting or something? Mainline
> > uses CONFIG_RCU_CPU_STALL_TIMEOUT=21.
>
> Indeed ... this value originated from a Fedora configuration.
OK. Setting it shorter might (or might not) make it reproduce more
quickly. This can be set at boot time via rcupdate.rcu_cpu_stall_timeout.
Or at compile time via CONFIG_RCU_CPU_STALL_TIMEOUT.
> >> [ 135.463965] rcu_preempt S ffff88017844fd68 0 7 2
> >> 0x00000000 [ 135.463969] ffff88017844fd68 ffff88017dd8cc80
> >> ffff880177ff0000 ffff880178443b80 [ 135.463973] ffff880178450000
> >> ffff88017844fda0 ffff88017dd8cc80 ffff88017dd8cc80 [ 135.463977]
> >> 0000000000000003 ffff88017844fd80 ffffffff81ab031f 0000000100031504 [
> >> 135.463981] Call Trace: [ 135.463986] [<ffffffff81ab031f>]
> >> schedule+0x3f/0xa0 [ 135.463989] [<ffffffff81ab42d7>]
> >> schedule_timeout+0x127/0x270 [ 135.463993] [<ffffffff81171a50>] ?
> >> detach_if_pending+0x120/0x120 [ 135.463997] [<ffffffff8116da5d>]
> >> rcu_gp_kthread+0x6bd/0xa30 [ 135.464000] [<ffffffff81151390>] ?
> >> wake_atomic_t_function+0x70/0x70 [ 135.464003] [<ffffffff8116d3a0>] ?
> >> force_qs_rnp+0x1b0/0x1b0 [ 135.464006] [<ffffffff8112f846>]
> >> kthread+0xe6/0x100 [ 135.464009] [<ffffffff8112f760>] ?
> >> kthread_worker_fn+0x190/0x190 [ 135.464012] [<ffffffff81ab5c0f>]
> >> ret_from_fork+0x3f/0x70 [ 135.464015] [<ffffffff8112f760>] ?
> >> kthread_worker_fn+0x190/0x190
> >
> > How long does it take to reproduce this? If it reproduces in minutes
> > or hours, could you please boot with the following on the kernel command
> > line and dump the trace buffer shortly after the stall?
> >
> > ftrace trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
>
> The trace I provided above appeared after a few minutes and not again. On previous occasions I had to wait a few hours. I tried running with the above added to the kernel command line but I have not seen the trace yet. I will leave the system overnight but then may risk not capturing the data you need so ...
Fair enough... Sounds like you might have the same geologic-time
problem that I do when adding tracing. :-/
> > If dumping manually shortly after the stall is at all non-trivial
> > (for example, if your reproduction time is many minute or hours),
> > I can supply some patches that automate this. Or you can pick
> > them up from -rcu:
>
> ... could you please point me to the patches you refer to? Or would you like me to try with the entire kernel from rcu/dev?
2dc92e2a86b9 (rcu: Awaken grace-period kthread if too long since FQS)
c3fd2095d015 (rcu: Dump ftrace buffer when kicking grace-period kthread)
There might be other dependencies, but these are the two that you need.
Thanx, Paul
> > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> >
> > Branch rcu/dev has these patches (and much else besides).
> >
> > Thanx, Paul
> >
> > PS: In case you are curious, when I enable those tracepoints, it
> > shows me that the timer is firing every three jiffies, as it
> > should, but that something happens between the sched_waking
> > and the IPI handler that should actually do the wakeup.
> > However, adding the traces significantly slows reproduction,
> > so I am writing a stress test specific to this bug to try to
> > speed things up, hopefully allowing more tracing to be added
> > while still retaining non-geologic reproduction times.
>
> Thank you very much for these details.
>
> Reinette
>
^ permalink raw reply [flat|nested] 79+ messages in thread
* RE: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-22 21:19 ` Paul E. McKenney
@ 2016-03-23 17:15 ` Chatre, Reinette
2016-03-23 18:20 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Chatre, Reinette @ 2016-03-23 17:15 UTC (permalink / raw)
To: paulmck
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
Hi Paul,
On 2016-03-22, Paul E. McKenney wrote:
> On Tue, Mar 22, 2016 at 09:04:47PM +0000, Chatre, Reinette wrote:
>> On 2016-03-22, Paul E. McKenney wrote:
>>> You set CONFIG_RCU_CPU_STALL_TIMEOUT=60, which matches the 60004
>>> jiffies above. Is that value due to a distro setting or something?
>>> Mainline uses CONFIG_RCU_CPU_STALL_TIMEOUT=21.
>>
>> Indeed ... this value originated from a Fedora configuration.
>
> OK. Setting it shorter might (or might not) make it reproduce more
> quickly. This can be set at boot time via rcupdate.rcu_cpu_stall_timeout.
> Or at compile time via CONFIG_RCU_CPU_STALL_TIMEOUT.
I kept the original configuration and seem to be able to reproduce with that.
>>> If dumping manually shortly after the stall is at all non-trivial
>>> (for example, if your reproduction time is many minute or hours),
>>> I can supply some patches that automate this. Or you can pick
>>> them up from -rcu:
>>
>> ... could you please point me to the patches you refer to? Or would you like
> me to try with the entire kernel from rcu/dev?
>
> 2dc92e2a86b9 (rcu: Awaken grace-period kthread if too long since FQS)
> c3fd2095d015 (rcu: Dump ftrace buffer when kicking grace-period kthread)
>
> There might be other dependencies, but these are the two that you need.
I did not look closely at the patches when I applied them and because of that missed that they need a kernel parameter to be activated. After leaving the system idle overnight with these patches the stalls occurred but without the parameter I did not capture the data you need. I will try again tonight. Below are the traces from last night just in case they have value to you.
[10154.635318] INFO: rcu_preempt detected stalls on CPUs/tasks:
[10154.639218] 1-...: (0 ticks this GP) idle=c4e/0/0 softirq=99936/99936 fqs=0
[10154.643497] (detected by 0, t=60005 jiffies, g=24190, c=24189, q=79)
[10154.647596] Task dump for CPU 1:
[10154.650818] swapper/1 R running task 0 0 1 0x00200000
[10154.655052] 00002656bf74de5e ffff8801785cfed0 ffffffff818af34c ffff880100000000
[10154.659349] 0000000600000003 ffff8801785d0000 ffff880072f0bc00 ffffffff822dcf80
[10154.663636] ffff8801785cc000 ffff8801785cc000 ffff8801785cfee0 ffffffff818af597
[10154.667916] Call Trace:
[10154.670845] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
[10154.674802] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
[10154.678564] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
[10154.682295] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
[10154.686187] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
[10154.690040] rcu_preempt kthread starved for 60005 jiffies! g24190 c24189 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[10154.694944] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
[10154.699062] ffff8801785b7d68 ffff88017dc8cc80 ffff8801785c3b80 ffff8801785abb80
[10154.703275] ffff8801785b8000 ffff8801785b7da0 ffff88017dc8cc80 ffff88017dc8cc80
[10154.707481] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 00000001027e21aa
[10154.711692] Call Trace:
[10154.714548] [<ffffffff81ab03df>] schedule+0x3f/0xa0
[10154.718075] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
[10154.721832] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
[10154.725659] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
[10154.729379] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
[10154.733235] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
[10154.736854] [<ffffffff8112f856>] kthread+0xe6/0x100
[10154.740267] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[10154.743980] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
[10154.747511] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[11348.912706] INFO: rcu_preempt detected stalls on CPUs/tasks:
[11348.916346] 2-...: (0 ticks this GP) idle=586/0/0 softirq=133504/133504 fqs=0
[11348.920407] (detected by 3, t=60002 jiffies, g=26799, c=26798, q=72)
[11348.924244] Task dump for CPU 2:
[11348.927205] swapper/2 R running task 0 0 1 0x00200000
[11348.931178] 00002adc83427a76 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
[11348.935217] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
[11348.939237] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
[11348.943252] Call Trace:
[11348.945921] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
[11348.949615] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
[11348.953115] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
[11348.956584] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
[11348.960215] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
[11348.963808] rcu_preempt kthread starved for 60002 jiffies! g26799 c26798 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[11348.968452] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
[11348.972309] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
[11348.976266] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
[11348.980207] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102c9d45e
[11348.984142] Call Trace:
[11348.986714] [<ffffffff81ab03df>] schedule+0x3f/0xa0
[11348.989974] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
[11348.993453] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
[11348.997000] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
[11349.000431] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
[11349.004040] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
[11349.007449] [<ffffffff8112f856>] kthread+0xe6/0x100
[11349.010676] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[11349.014216] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
[11349.017568] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[11790.539207] INFO: rcu_preempt detected stalls on CPUs/tasks:
[11790.542652] 2-...: (0 ticks this GP) idle=944/0/0 softirq=133668/133668 fqs=0
[11790.546505] (detected by 3, t=60003 jiffies, g=27589, c=27588, q=72)
[11790.550124] Task dump for CPU 2:
[11790.552871] swapper/2 R running task 0 0 1 0x00200000
[11790.556678] 00002c8422fed65e ffff8801785d3ed0 ffffffff818af34c ffff880100000000
[11790.560580] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
[11790.564485] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
[11790.568389] Call Trace:
[11790.570942] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
[11790.574525] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
[11790.577934] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
[11790.581311] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
[11790.584853] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
[11790.588350] rcu_preempt kthread starved for 60003 jiffies! g27589 c27588 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[11790.592945] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
[11790.596808] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
[11790.600751] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
[11790.604688] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102e5d253
[11790.608635] Call Trace:
[11790.611220] [<ffffffff81ab03df>] schedule+0x3f/0xa0
[11790.614480] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
[11790.617971] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
[11790.621530] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
[11790.624972] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
[11790.628558] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
[11790.631904] [<ffffffff8112f856>] kthread+0xe6/0x100
[11790.635043] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[11790.638485] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
[11790.641745] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[11820.319166] INFO: rcu_preempt detected stalls on CPUs/tasks:
[11820.322523] 2-...: (0 ticks this GP) idle=9b4/0/0 softirq=133674/133674 fqs=0
[11820.326301] (detected by 3, t=60002 jiffies, g=27620, c=27619, q=64)
[11820.329856] Task dump for CPU 2:
[11820.332536] swapper/2 R running task 0 0 1 0x00200000
[11820.336228] 00002ca4dc6b2bb1 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
[11820.339990] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
[11820.343749] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
[11820.347483] Call Trace:
[11820.349852] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
[11820.353250] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
[11820.356463] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
[11820.359637] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
[11820.362973] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
[11820.366264] rcu_preempt kthread starved for 60002 jiffies! g27620 c27619 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[11820.370643] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
[11820.374276] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
[11820.378026] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
[11820.381775] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102e7b58c
[11820.385537] Call Trace:
[11820.387940] [<ffffffff81ab03df>] schedule+0x3f/0xa0
[11820.391005] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
[11820.394286] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
[11820.397626] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
[11820.400853] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
[11820.404269] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
[11820.407478] [<ffffffff8112f856>] kthread+0xe6/0x100
[11820.410493] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[11820.413824] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
[11820.416966] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[11903.292474] INFO: rcu_preempt detected stalls on CPUs/tasks:
[11903.295736] 2-...: (0 ticks this GP) idle=bd2/0/0 softirq=133700/133700 fqs=0
[11903.299427] (detected by 3, t=60003 jiffies, g=27759, c=27758, q=277)
[11903.302921] Task dump for CPU 2:
[11903.305513] swapper/2 R running task 0 0 1 0x00200000
[11903.309164] 00002cf65a063204 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
[11903.312931] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
[11903.316685] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
[11903.320426] Call Trace:
[11903.322802] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
[11903.326199] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
[11903.329416] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
[11903.332591] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
[11903.335931] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
[11903.339226] rcu_preempt kthread starved for 60003 jiffies! g27759 c27758 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[11903.343607] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
[11903.347246] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
[11903.350999] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
[11903.354750] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102ecf7e4
[11903.358508] Call Trace:
[11903.360909] [<ffffffff81ab03df>] schedule+0x3f/0xa0
[11903.363979] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
[11903.367259] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
[11903.370601] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
[11903.373829] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
[11903.377243] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
[11903.380455] [<ffffffff8112f856>] kthread+0xe6/0x100
[11903.383473] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[11903.386804] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
[11903.389942] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[12101.322638] INFO: rcu_preempt detected stalls on CPUs/tasks:
[12101.325902] 2-...: (19 GPs behind) idle=880/0/0 softirq=133768/133768 fqs=1
[12101.329542] (detected by 1, t=60004 jiffies, g=28170, c=28169, q=41)
[12101.333009] Task dump for CPU 2:
[12101.335599] swapper/2 R running task 0 0 1 0x00200000
[12101.339248] 00002db4171b61e1 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
[12101.343008] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
[12101.346763] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
[12101.350501] Call Trace:
[12101.352868] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
[12101.356262] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
[12101.359475] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
[12101.362645] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
[12101.365980] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
[12101.369270] rcu_preempt kthread starved for 60000 jiffies! g28170 c28169 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[12101.373646] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
[12101.377281] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
[12101.381030] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
[12101.384778] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102f98533
[12101.388532] Call Trace:
[12101.390927] [<ffffffff81ab03df>] schedule+0x3f/0xa0
[12101.393991] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
[12101.397266] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
[12101.400602] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
[12101.403825] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
[12101.407240] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
[12101.410450] [<ffffffff8112f856>] kthread+0xe6/0x100
[12101.413465] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[12101.416793] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
[12101.419930] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[12269.411058] INFO: rcu_preempt detected stalls on CPUs/tasks:
[12269.414316] 2-...: (27 GPs behind) idle=daa/0/0 softirq=133902/133902 fqs=1
[12269.417947] (detected by 0, t=60003 jiffies, g=28504, c=28503, q=347)
[12269.421426] Task dump for CPU 2:
[12269.424012] swapper/2 R running task 0 0 1 0x00200000
[12269.427656] 00002e58b5f8d033 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
[12269.431405] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
[12269.435153] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
[12269.438886] Call Trace:
[12269.441252] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
[12269.444638] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
[12269.447850] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
[12269.451014] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
[12269.454348] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
[12269.457634] rcu_preempt kthread starved for 59872 jiffies! g28504 c28503 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[12269.462008] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
[12269.465636] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
[12269.469380] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
[12269.473121] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000103042d26
[12269.476868] Call Trace:
[12269.479262] [<ffffffff81ab03df>] schedule+0x3f/0xa0
[12269.482321] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
[12269.485592] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
[12269.488926] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
[12269.492144] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
[12269.495554] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
[12269.498756] [<ffffffff8112f856>] kthread+0xe6/0x100
[12269.501764] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[12269.505090] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
[12269.508224] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[12426.587923] INFO: rcu_preempt detected stalls on CPUs/tasks:
[12426.591181] 2-...: (17 GPs behind) idle=15c/0/0 softirq=134033/134034 fqs=1
[12426.594815] (detected by 0, t=60002 jiffies, g=28804, c=28803, q=396)
[12426.598296] Task dump for CPU 2:
[12426.600881] swapper/2 R running task 0 0 1 0x00200000
[12426.604528] 00002eed4414d5d4 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
[12426.608284] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
[12426.612030] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
[12426.615762] Call Trace:
[12426.618131] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
[12426.621522] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
[12426.624733] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
[12426.627903] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
[12426.631238] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
[12426.634527] rcu_preempt kthread starved for 59998 jiffies! g28804 c28803 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[12426.638900] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
[12426.642535] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
[12426.646285] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
[12426.650031] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 00000001030e230e
[12426.653787] Call Trace:
[12426.656186] [<ffffffff81ab03df>] schedule+0x3f/0xa0
[12426.659251] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
[12426.662528] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
[12426.665868] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
[12426.669091] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
[12426.672502] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
[12426.675710] [<ffffffff8112f856>] kthread+0xe6/0x100
[12426.678724] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[12426.682052] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
[12426.685188] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-23 17:15 ` Chatre, Reinette
@ 2016-03-23 18:20 ` Paul E. McKenney
2016-03-23 18:25 ` Chatre, Reinette
2016-03-25 21:24 ` Chatre, Reinette
0 siblings, 2 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-23 18:20 UTC (permalink / raw)
To: Chatre, Reinette
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Wed, Mar 23, 2016 at 05:15:11PM +0000, Chatre, Reinette wrote:
> Hi Paul,
>
> On 2016-03-22, Paul E. McKenney wrote:
> > On Tue, Mar 22, 2016 at 09:04:47PM +0000, Chatre, Reinette wrote:
> >> On 2016-03-22, Paul E. McKenney wrote:
> >>> You set CONFIG_RCU_CPU_STALL_TIMEOUT=60, which matches the 60004
> >>> jiffies above. Is that value due to a distro setting or something?
> >>> Mainline uses CONFIG_RCU_CPU_STALL_TIMEOUT=21.
> >>
> >> Indeed ... this value originated from a Fedora configuration.
> >
> > OK. Setting it shorter might (or might not) make it reproduce more
> > quickly. This can be set at boot time via rcupdate.rcu_cpu_stall_timeout.
> > Or at compile time via CONFIG_RCU_CPU_STALL_TIMEOUT.
>
> I kept the original configuration and seem to be able to reproduce with that.
>
>
> >>> If dumping manually shortly after the stall is at all non-trivial
> >>> (for example, if your reproduction time is many minute or hours),
> >>> I can supply some patches that automate this. Or you can pick
> >>> them up from -rcu:
> >>
> >> ... could you please point me to the patches you refer to? Or would you like
> > me to try with the entire kernel from rcu/dev?
> >
> > 2dc92e2a86b9 (rcu: Awaken grace-period kthread if too long since FQS)
> > c3fd2095d015 (rcu: Dump ftrace buffer when kicking grace-period kthread)
> >
> > There might be other dependencies, but these are the two that you need.
>
> I did not look closely at the patches when I applied them and because
> of that missed that they need a kernel parameter to be activated. After
> leaving the system idle overnight with these patches the stalls occurred
> but without the parameter I did not capture the data you need. I will
> try again tonight. Below are the traces from last night just in case
> they have value to you.
I know that feeling!
Please boot with the following parameters:
rcu_tree.rcu_kick_kthreads ftrace trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
Or was this run with tracing? If so, less than three hours isn't too bad.
> [10154.635318] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [10154.639218] 1-...: (0 ticks this GP) idle=c4e/0/0 softirq=99936/99936 fqs=0
> [10154.643497] (detected by 0, t=60005 jiffies, g=24190, c=24189, q=79)
> [10154.647596] Task dump for CPU 1:
> [10154.650818] swapper/1 R running task 0 0 1 0x00200000
> [10154.655052] 00002656bf74de5e ffff8801785cfed0 ffffffff818af34c ffff880100000000
> [10154.659349] 0000000600000003 ffff8801785d0000 ffff880072f0bc00 ffffffff822dcf80
> [10154.663636] ffff8801785cc000 ffff8801785cc000 ffff8801785cfee0 ffffffff818af597
> [10154.667916] Call Trace:
> [10154.670845] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> [10154.674802] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> [10154.678564] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> [10154.682295] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> [10154.686187] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> [10154.690040] rcu_preempt kthread starved for 60005 jiffies! g24190 c24189 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
Still the same type of failure, which is reassuring.
Thanx, Paul
> [10154.694944] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> [10154.699062] ffff8801785b7d68 ffff88017dc8cc80 ffff8801785c3b80 ffff8801785abb80
> [10154.703275] ffff8801785b8000 ffff8801785b7da0 ffff88017dc8cc80 ffff88017dc8cc80
> [10154.707481] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 00000001027e21aa
> [10154.711692] Call Trace:
> [10154.714548] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> [10154.718075] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> [10154.721832] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> [10154.725659] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> [10154.729379] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> [10154.733235] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> [10154.736854] [<ffffffff8112f856>] kthread+0xe6/0x100
> [10154.740267] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [10154.743980] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> [10154.747511] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [11348.912706] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [11348.916346] 2-...: (0 ticks this GP) idle=586/0/0 softirq=133504/133504 fqs=0
> [11348.920407] (detected by 3, t=60002 jiffies, g=26799, c=26798, q=72)
> [11348.924244] Task dump for CPU 2:
> [11348.927205] swapper/2 R running task 0 0 1 0x00200000
> [11348.931178] 00002adc83427a76 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
> [11348.935217] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
> [11348.939237] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
> [11348.943252] Call Trace:
> [11348.945921] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> [11348.949615] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> [11348.953115] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> [11348.956584] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> [11348.960215] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> [11348.963808] rcu_preempt kthread starved for 60002 jiffies! g26799 c26798 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
> [11348.968452] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> [11348.972309] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
> [11348.976266] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
> [11348.980207] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102c9d45e
> [11348.984142] Call Trace:
> [11348.986714] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> [11348.989974] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> [11348.993453] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> [11348.997000] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> [11349.000431] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> [11349.004040] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> [11349.007449] [<ffffffff8112f856>] kthread+0xe6/0x100
> [11349.010676] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [11349.014216] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> [11349.017568] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [11790.539207] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [11790.542652] 2-...: (0 ticks this GP) idle=944/0/0 softirq=133668/133668 fqs=0
> [11790.546505] (detected by 3, t=60003 jiffies, g=27589, c=27588, q=72)
> [11790.550124] Task dump for CPU 2:
> [11790.552871] swapper/2 R running task 0 0 1 0x00200000
> [11790.556678] 00002c8422fed65e ffff8801785d3ed0 ffffffff818af34c ffff880100000000
> [11790.560580] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
> [11790.564485] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
> [11790.568389] Call Trace:
> [11790.570942] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> [11790.574525] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> [11790.577934] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> [11790.581311] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> [11790.584853] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> [11790.588350] rcu_preempt kthread starved for 60003 jiffies! g27589 c27588 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
> [11790.592945] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> [11790.596808] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
> [11790.600751] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
> [11790.604688] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102e5d253
> [11790.608635] Call Trace:
> [11790.611220] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> [11790.614480] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> [11790.617971] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> [11790.621530] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> [11790.624972] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> [11790.628558] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> [11790.631904] [<ffffffff8112f856>] kthread+0xe6/0x100
> [11790.635043] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [11790.638485] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> [11790.641745] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [11820.319166] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [11820.322523] 2-...: (0 ticks this GP) idle=9b4/0/0 softirq=133674/133674 fqs=0
> [11820.326301] (detected by 3, t=60002 jiffies, g=27620, c=27619, q=64)
> [11820.329856] Task dump for CPU 2:
> [11820.332536] swapper/2 R running task 0 0 1 0x00200000
> [11820.336228] 00002ca4dc6b2bb1 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
> [11820.339990] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
> [11820.343749] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
> [11820.347483] Call Trace:
> [11820.349852] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> [11820.353250] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> [11820.356463] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> [11820.359637] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> [11820.362973] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> [11820.366264] rcu_preempt kthread starved for 60002 jiffies! g27620 c27619 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
> [11820.370643] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> [11820.374276] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
> [11820.378026] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
> [11820.381775] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102e7b58c
> [11820.385537] Call Trace:
> [11820.387940] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> [11820.391005] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> [11820.394286] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> [11820.397626] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> [11820.400853] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> [11820.404269] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> [11820.407478] [<ffffffff8112f856>] kthread+0xe6/0x100
> [11820.410493] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [11820.413824] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> [11820.416966] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [11903.292474] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [11903.295736] 2-...: (0 ticks this GP) idle=bd2/0/0 softirq=133700/133700 fqs=0
> [11903.299427] (detected by 3, t=60003 jiffies, g=27759, c=27758, q=277)
> [11903.302921] Task dump for CPU 2:
> [11903.305513] swapper/2 R running task 0 0 1 0x00200000
> [11903.309164] 00002cf65a063204 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
> [11903.312931] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
> [11903.316685] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
> [11903.320426] Call Trace:
> [11903.322802] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> [11903.326199] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> [11903.329416] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> [11903.332591] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> [11903.335931] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> [11903.339226] rcu_preempt kthread starved for 60003 jiffies! g27759 c27758 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
> [11903.343607] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> [11903.347246] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
> [11903.350999] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
> [11903.354750] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102ecf7e4
> [11903.358508] Call Trace:
> [11903.360909] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> [11903.363979] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> [11903.367259] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> [11903.370601] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> [11903.373829] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> [11903.377243] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> [11903.380455] [<ffffffff8112f856>] kthread+0xe6/0x100
> [11903.383473] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [11903.386804] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> [11903.389942] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [12101.322638] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [12101.325902] 2-...: (19 GPs behind) idle=880/0/0 softirq=133768/133768 fqs=1
> [12101.329542] (detected by 1, t=60004 jiffies, g=28170, c=28169, q=41)
> [12101.333009] Task dump for CPU 2:
> [12101.335599] swapper/2 R running task 0 0 1 0x00200000
> [12101.339248] 00002db4171b61e1 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
> [12101.343008] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
> [12101.346763] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
> [12101.350501] Call Trace:
> [12101.352868] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> [12101.356262] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> [12101.359475] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> [12101.362645] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> [12101.365980] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> [12101.369270] rcu_preempt kthread starved for 60000 jiffies! g28170 c28169 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
> [12101.373646] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> [12101.377281] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
> [12101.381030] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
> [12101.384778] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000102f98533
> [12101.388532] Call Trace:
> [12101.390927] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> [12101.393991] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> [12101.397266] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> [12101.400602] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> [12101.403825] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> [12101.407240] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> [12101.410450] [<ffffffff8112f856>] kthread+0xe6/0x100
> [12101.413465] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [12101.416793] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> [12101.419930] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [12269.411058] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [12269.414316] 2-...: (27 GPs behind) idle=daa/0/0 softirq=133902/133902 fqs=1
> [12269.417947] (detected by 0, t=60003 jiffies, g=28504, c=28503, q=347)
> [12269.421426] Task dump for CPU 2:
> [12269.424012] swapper/2 R running task 0 0 1 0x00200000
> [12269.427656] 00002e58b5f8d033 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
> [12269.431405] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
> [12269.435153] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
> [12269.438886] Call Trace:
> [12269.441252] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> [12269.444638] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> [12269.447850] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> [12269.451014] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> [12269.454348] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> [12269.457634] rcu_preempt kthread starved for 59872 jiffies! g28504 c28503 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
> [12269.462008] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> [12269.465636] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
> [12269.469380] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
> [12269.473121] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000103042d26
> [12269.476868] Call Trace:
> [12269.479262] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> [12269.482321] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> [12269.485592] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> [12269.488926] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> [12269.492144] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> [12269.495554] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> [12269.498756] [<ffffffff8112f856>] kthread+0xe6/0x100
> [12269.501764] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [12269.505090] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> [12269.508224] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [12426.587923] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [12426.591181] 2-...: (17 GPs behind) idle=15c/0/0 softirq=134033/134034 fqs=1
> [12426.594815] (detected by 0, t=60002 jiffies, g=28804, c=28803, q=396)
> [12426.598296] Task dump for CPU 2:
> [12426.600881] swapper/2 R running task 0 0 1 0x00200000
> [12426.604528] 00002eed4414d5d4 ffff8801785d3ed0 ffffffff818af34c ffff880100000000
> [12426.608284] 0000000600000003 ffff8801785d4000 ffff880177d01e00 ffffffff822dcf80
> [12426.612030] ffff8801785d0000 ffff8801785d0000 ffff8801785d3ee0 ffffffff818af597
> [12426.615762] Call Trace:
> [12426.618131] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> [12426.621522] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> [12426.624733] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> [12426.627903] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> [12426.631238] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> [12426.634527] rcu_preempt kthread starved for 59998 jiffies! g28804 c28803 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
> [12426.638900] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> [12426.642535] ffff8801785b7d68 ffff88017dd0cc80 ffff8801785c5940 ffff8801785abb80
> [12426.646285] ffff8801785b8000 ffff8801785b7da0 ffff88017dd0cc80 ffff88017dd0cc80
> [12426.650031] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 00000001030e230e
> [12426.653787] Call Trace:
> [12426.656186] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> [12426.659251] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> [12426.662528] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> [12426.665868] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> [12426.669091] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> [12426.672502] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> [12426.675710] [<ffffffff8112f856>] kthread+0xe6/0x100
> [12426.678724] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [12426.682052] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> [12426.685188] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
>
>
^ permalink raw reply [flat|nested] 79+ messages in thread
* RE: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-23 18:20 ` Paul E. McKenney
@ 2016-03-23 18:25 ` Chatre, Reinette
2016-03-23 19:50 ` Paul E. McKenney
2016-03-25 21:24 ` Chatre, Reinette
1 sibling, 1 reply; 79+ messages in thread
From: Chatre, Reinette @ 2016-03-23 18:25 UTC (permalink / raw)
To: paulmck
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
Hi Paul,
On 2016-03-23, Paul E. McKenney wrote:
> Please boot with the following parameters:
>
> rcu_tree.rcu_kick_kthreads ftrace
> trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
>
> Or was this run with tracing? If so, less than three hours isn't too bad.
This was with tracing enabled, only missing the crucial rcu_tree.rcu_kick_kthreads
Reinette
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-23 18:25 ` Chatre, Reinette
@ 2016-03-23 19:50 ` Paul E. McKenney
0 siblings, 0 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-23 19:50 UTC (permalink / raw)
To: Chatre, Reinette
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Wed, Mar 23, 2016 at 06:25:50PM +0000, Chatre, Reinette wrote:
> Hi Paul,
>
> On 2016-03-23, Paul E. McKenney wrote:
> > Please boot with the following parameters:
> >
> > rcu_tree.rcu_kick_kthreads ftrace
> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
> >
> > Or was this run with tracing? If so, less than three hours isn't too bad.
>
> This was with tracing enabled, only missing the crucial
> rcu_tree.rcu_kick_kthreads
Good, then the condition did trigger with tracing enabled! ;-)
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* RE: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-23 18:20 ` Paul E. McKenney
2016-03-23 18:25 ` Chatre, Reinette
@ 2016-03-25 21:24 ` Chatre, Reinette
2016-03-25 21:46 ` Paul E. McKenney
1 sibling, 1 reply; 79+ messages in thread
From: Chatre, Reinette @ 2016-03-25 21:24 UTC (permalink / raw)
To: paulmck
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 3266 bytes --]
Hi Paul,
On 2016-03-23, Paul E. McKenney wrote:
> Please boot with the following parameters:
>
> rcu_tree.rcu_kick_kthreads ftrace
> trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
With these parameters I expected more details to show up in the kernel logs but cannot find any. Even so, today I left the machine running again and when this happened I think I was able to capture the trace data for the event. Please find attached the trace information for the kernel message below. Since the complete trace file is very big I trimmed it to show the time around this event - hopefully this will contain the information you need. I would also like to provide some additional information. The system on which I see these events had a time that was _very_ wrong. I noticed that this issue occurs when system-timesynd was one of the tasks calling the functions of interest to your tracing and am wondering if a very out of sync time in process of being corrected could be the cause of this issue? As an experiment I ensured the system time was accurate before leaving the system idle overnight and I did not see the issue the next morning.
[ 957.396537] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 957.399933] 1-...: (0 ticks this GP) idle=4d6/0/0 softirq=6311/6311 fqs=0
[ 957.403661] (detected by 0, t=60002 jiffies, g=3583, c=3582, q=47)
[ 957.407227] Task dump for CPU 1:
[ 957.409964] swapper/1 R running task 0 0 1 0x00200000
[ 957.413770] 0000039daa9a7eb9 ffff8801785cfed0 ffffffff818af34c ffff880100000000
[ 957.417696] 0000000600000003 ffff8801785d0000 ffff880072f9ea00 ffffffff822dcf80
[ 957.421631] ffff8801785cc000 ffff8801785cc000 ffff8801785cfee0 ffffffff818af597
[ 957.425562] Call Trace:
[ 957.428124] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
[ 957.431713] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
[ 957.435122] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
[ 957.438467] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
[ 957.441949] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
[ 957.445378] rcu_preempt kthread starved for 60002 jiffies! g3583 c3582 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[ 957.449834] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
[ 957.453579] ffff8801785b7d68 ffff88017dc8cc80 ffff88016fe6bb80 ffff8801785abb80
[ 957.457428] ffff8801785b8000 ffff8801785b7da0 ffff88017dc8cc80 ffff88017dc8cc80
[ 957.461249] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000100373021
[ 957.465055] Call Trace:
[ 957.467493] [<ffffffff81ab03df>] schedule+0x3f/0xa0
[ 957.470613] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
[ 957.473976] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
[ 957.477387] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
[ 957.480659] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
[ 957.484123] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
[ 957.487392] [<ffffffff8112f856>] kthread+0xe6/0x100
[ 957.490470] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
[ 957.493859] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
[ 957.497044] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
Reinette
[-- Attachment #2: trace.trim.gz --]
[-- Type: application/x-gzip, Size: 55975 bytes --]
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-25 21:24 ` Chatre, Reinette
@ 2016-03-25 21:46 ` Paul E. McKenney
2016-03-26 12:29 ` Mathieu Desnoyers
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-25 21:46 UTC (permalink / raw)
To: Chatre, Reinette
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Fri, Mar 25, 2016 at 09:24:14PM +0000, Chatre, Reinette wrote:
> Hi Paul,
>
> On 2016-03-23, Paul E. McKenney wrote:
> > Please boot with the following parameters:
> >
> > rcu_tree.rcu_kick_kthreads ftrace
> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
>
> With these parameters I expected more details to show up in the kernel logs but cannot find any. Even so, today I left the machine running again and when this happened I think I was able to capture the trace data for the event. Please find attached the trace information for the kernel message below. Since the complete trace file is very big I trimmed it to show the time around this event - hopefully this will contain the information you need. I would also like to provide some additional information. The system on which I see these events had a time that was _very_ wrong. I noticed that this issue occurs when system-timesynd was one of the tasks calling the functions of interest to your tracing and am wondering if a very out of sync time in process of being corrected could be the cause of this issue? As an experiment I ensured the system time was accurate before leaving the system idle overnight and I did not see the issue the next morning.
Ah! Yes, a sudden jump in time or a disagreement about the time among
different components of the system can definitely cause these symptoms.
We have sometimes seen these problems occur when a pair of CPUs have
wildly different ideas about what time it is, for example. Please let
me know how it goes.
Also, in your trace, there are no sched_waking events for the rcu_preempt
process that are not immediately followed by sched_wakeup, so your trace
isn't showing the problem that I am seeing.
Still beating up on my stress test, which is not yet proving to be all
that stressful. :-/
Thanx, Paul
> [ 957.396537] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 957.399933] 1-...: (0 ticks this GP) idle=4d6/0/0 softirq=6311/6311 fqs=0
> [ 957.403661] (detected by 0, t=60002 jiffies, g=3583, c=3582, q=47)
> [ 957.407227] Task dump for CPU 1:
> [ 957.409964] swapper/1 R running task 0 0 1 0x00200000
> [ 957.413770] 0000039daa9a7eb9 ffff8801785cfed0 ffffffff818af34c ffff880100000000
> [ 957.417696] 0000000600000003 ffff8801785d0000 ffff880072f9ea00 ffffffff822dcf80
> [ 957.421631] ffff8801785cc000 ffff8801785cc000 ffff8801785cfee0 ffffffff818af597
> [ 957.425562] Call Trace:
> [ 957.428124] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> [ 957.431713] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> [ 957.435122] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> [ 957.438467] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> [ 957.441949] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> [ 957.445378] rcu_preempt kthread starved for 60002 jiffies! g3583 c3582 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
> [ 957.449834] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> [ 957.453579] ffff8801785b7d68 ffff88017dc8cc80 ffff88016fe6bb80 ffff8801785abb80
> [ 957.457428] ffff8801785b8000 ffff8801785b7da0 ffff88017dc8cc80 ffff88017dc8cc80
> [ 957.461249] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df 0000000100373021
> [ 957.465055] Call Trace:
> [ 957.467493] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> [ 957.470613] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> [ 957.473976] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> [ 957.477387] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> [ 957.480659] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> [ 957.484123] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> [ 957.487392] [<ffffffff8112f856>] kthread+0xe6/0x100
> [ 957.490470] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> [ 957.493859] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> [ 957.497044] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
>
> Reinette
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-25 21:46 ` Paul E. McKenney
@ 2016-03-26 12:29 ` Mathieu Desnoyers
2016-03-26 15:28 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-03-26 12:29 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
----- On Mar 25, 2016, at 5:46 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
> On Fri, Mar 25, 2016 at 09:24:14PM +0000, Chatre, Reinette wrote:
>> Hi Paul,
>>
>> On 2016-03-23, Paul E. McKenney wrote:
>> > Please boot with the following parameters:
>> >
>> > rcu_tree.rcu_kick_kthreads ftrace
>> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
>>
>> With these parameters I expected more details to show up in the kernel logs but
>> cannot find any. Even so, today I left the machine running again and when this
>> happened I think I was able to capture the trace data for the event. Please
>> find attached the trace information for the kernel message below. Since the
>> complete trace file is very big I trimmed it to show the time around this event
>> - hopefully this will contain the information you need. I would also like to
>> provide some additional information. The system on which I see these events had
>> a time that was _very_ wrong. I noticed that this issue occurs when
>> system-timesynd was one of the tasks calling the functions of interest to your
>> tracing and am wondering if a very out of sync time in process of being
>> corrected could be the cause of this issue? As an experiment I ensured the
>> system time was accurate before leaving the system idle overnight and I did not
>> see the issue the next morning.
>
> Ah! Yes, a sudden jump in time or a disagreement about the time among
> different components of the system can definitely cause these symptoms.
> We have sometimes seen these problems occur when a pair of CPUs have
> wildly different ideas about what time it is, for example. Please let
> me know how it goes.
>
> Also, in your trace, there are no sched_waking events for the rcu_preempt
> process that are not immediately followed by sched_wakeup, so your trace
> isn't showing the problem that I am seeing.
This is interesting.
Perhaps we could try with those commits reverted ?
commit e3baac47f0e82c4be632f4f97215bb93bf16b342
Author: Peter Zijlstra <peterz@infradead.org>
Date: Wed Jun 4 10:31:18 2014 -0700
sched/idle: Optimize try-to-wake-up IPI
commit fd99f91aa007ba255aac44fe6cf21c1db398243a
Author: Peter Zijlstra <peterz@infradead.org>
Date: Wed Apr 9 15:35:08 2014 +0200
sched/idle: Avoid spurious wakeup IPIs
They appeared in 3.16.
Thanks,
Mathieu
>
> Still beating up on my stress test, which is not yet proving to be all
> that stressful. :-/
>
> Thanx, Paul
>
>> [ 957.396537] INFO: rcu_preempt detected stalls on CPUs/tasks:
>> [ 957.399933] 1-...: (0 ticks this GP) idle=4d6/0/0 softirq=6311/6311 fqs=0
>> [ 957.403661] (detected by 0, t=60002 jiffies, g=3583, c=3582, q=47)
>> [ 957.407227] Task dump for CPU 1:
>> [ 957.409964] swapper/1 R running task 0 0 1 0x00200000
>> [ 957.413770] 0000039daa9a7eb9 ffff8801785cfed0 ffffffff818af34c
>> ffff880100000000
>> [ 957.417696] 0000000600000003 ffff8801785d0000 ffff880072f9ea00
>> ffffffff822dcf80
>> [ 957.421631] ffff8801785cc000 ffff8801785cc000 ffff8801785cfee0
>> ffffffff818af597
>> [ 957.425562] Call Trace:
>> [ 957.428124] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
>> [ 957.431713] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
>> [ 957.435122] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
>> [ 957.438467] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
>> [ 957.441949] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
>> [ 957.445378] rcu_preempt kthread starved for 60002 jiffies! g3583 c3582 f0x0
>> RCU_GP_WAIT_FQS(3) ->state=0x1
>> [ 957.449834] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
>> [ 957.453579] ffff8801785b7d68 ffff88017dc8cc80 ffff88016fe6bb80
>> ffff8801785abb80
>> [ 957.457428] ffff8801785b8000 ffff8801785b7da0 ffff88017dc8cc80
>> ffff88017dc8cc80
>> [ 957.461249] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df
>> 0000000100373021
>> [ 957.465055] Call Trace:
>> [ 957.467493] [<ffffffff81ab03df>] schedule+0x3f/0xa0
>> [ 957.470613] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
>> [ 957.473976] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
>> [ 957.477387] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
>> [ 957.480659] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
>> [ 957.484123] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
>> [ 957.487392] [<ffffffff8112f856>] kthread+0xe6/0x100
>> [ 957.490470] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
>> [ 957.493859] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
>> [ 957.497044] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
>>
> > Reinette
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-26 12:29 ` Mathieu Desnoyers
@ 2016-03-26 15:28 ` Paul E. McKenney
2016-03-26 18:49 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-26 15:28 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sat, Mar 26, 2016 at 12:29:31PM +0000, Mathieu Desnoyers wrote:
> ----- On Mar 25, 2016, at 5:46 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
>
> > On Fri, Mar 25, 2016 at 09:24:14PM +0000, Chatre, Reinette wrote:
> >> Hi Paul,
> >>
> >> On 2016-03-23, Paul E. McKenney wrote:
> >> > Please boot with the following parameters:
> >> >
> >> > rcu_tree.rcu_kick_kthreads ftrace
> >> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
> >>
> >> With these parameters I expected more details to show up in the kernel logs but
> >> cannot find any. Even so, today I left the machine running again and when this
> >> happened I think I was able to capture the trace data for the event. Please
> >> find attached the trace information for the kernel message below. Since the
> >> complete trace file is very big I trimmed it to show the time around this event
> >> - hopefully this will contain the information you need. I would also like to
> >> provide some additional information. The system on which I see these events had
> >> a time that was _very_ wrong. I noticed that this issue occurs when
> >> system-timesynd was one of the tasks calling the functions of interest to your
> >> tracing and am wondering if a very out of sync time in process of being
> >> corrected could be the cause of this issue? As an experiment I ensured the
> >> system time was accurate before leaving the system idle overnight and I did not
> >> see the issue the next morning.
> >
> > Ah! Yes, a sudden jump in time or a disagreement about the time among
> > different components of the system can definitely cause these symptoms.
> > We have sometimes seen these problems occur when a pair of CPUs have
> > wildly different ideas about what time it is, for example. Please let
> > me know how it goes.
> >
> > Also, in your trace, there are no sched_waking events for the rcu_preempt
> > process that are not immediately followed by sched_wakeup, so your trace
> > isn't showing the problem that I am seeing.
>
> This is interesting.
>
> Perhaps we could try with those commits reverted ?
>
> commit e3baac47f0e82c4be632f4f97215bb93bf16b342
> Author: Peter Zijlstra <peterz@infradead.org>
> Date: Wed Jun 4 10:31:18 2014 -0700
>
> sched/idle: Optimize try-to-wake-up IPI
>
> commit fd99f91aa007ba255aac44fe6cf21c1db398243a
> Author: Peter Zijlstra <peterz@infradead.org>
> Date: Wed Apr 9 15:35:08 2014 +0200
>
> sched/idle: Avoid spurious wakeup IPIs
>
> They appeared in 3.16.
At this point, I am up for trying pretty much anything. ;-)
Will give it a go.
Thanx, Paul
> Thanks,
>
> Mathieu
>
> >
> > Still beating up on my stress test, which is not yet proving to be all
> > that stressful. :-/
> >
> > Thanx, Paul
> >
> >> [ 957.396537] INFO: rcu_preempt detected stalls on CPUs/tasks:
> >> [ 957.399933] 1-...: (0 ticks this GP) idle=4d6/0/0 softirq=6311/6311 fqs=0
> >> [ 957.403661] (detected by 0, t=60002 jiffies, g=3583, c=3582, q=47)
> >> [ 957.407227] Task dump for CPU 1:
> >> [ 957.409964] swapper/1 R running task 0 0 1 0x00200000
> >> [ 957.413770] 0000039daa9a7eb9 ffff8801785cfed0 ffffffff818af34c
> >> ffff880100000000
> >> [ 957.417696] 0000000600000003 ffff8801785d0000 ffff880072f9ea00
> >> ffffffff822dcf80
> >> [ 957.421631] ffff8801785cc000 ffff8801785cc000 ffff8801785cfee0
> >> ffffffff818af597
> >> [ 957.425562] Call Trace:
> >> [ 957.428124] [<ffffffff818af34c>] ? cpuidle_enter_state+0xfc/0x310
> >> [ 957.431713] [<ffffffff818af597>] ? cpuidle_enter+0x17/0x20
> >> [ 957.435122] [<ffffffff811515ba>] ? call_cpuidle+0x2a/0x40
> >> [ 957.438467] [<ffffffff8115198d>] ? cpu_startup_entry+0x28d/0x360
> >> [ 957.441949] [<ffffffff8108c864>] ? start_secondary+0x114/0x140
> >> [ 957.445378] rcu_preempt kthread starved for 60002 jiffies! g3583 c3582 f0x0
> >> RCU_GP_WAIT_FQS(3) ->state=0x1
> >> [ 957.449834] rcu_preempt S ffff8801785b7d68 0 7 2 0x00000000
> >> [ 957.453579] ffff8801785b7d68 ffff88017dc8cc80 ffff88016fe6bb80
> >> ffff8801785abb80
> >> [ 957.457428] ffff8801785b8000 ffff8801785b7da0 ffff88017dc8cc80
> >> ffff88017dc8cc80
> >> [ 957.461249] 0000000000000003 ffff8801785b7d80 ffffffff81ab03df
> >> 0000000100373021
> >> [ 957.465055] Call Trace:
> >> [ 957.467493] [<ffffffff81ab03df>] schedule+0x3f/0xa0
> >> [ 957.470613] [<ffffffff81ab4397>] schedule_timeout+0x127/0x270
> >> [ 957.473976] [<ffffffff81171a00>] ? detach_if_pending+0x120/0x120
> >> [ 957.477387] [<ffffffff8116d983>] rcu_gp_kthread+0x6d3/0xa40
> >> [ 957.480659] [<ffffffff811513a0>] ? wake_atomic_t_function+0x70/0x70
> >> [ 957.484123] [<ffffffff8116d2b0>] ? force_qs_rnp+0x1b0/0x1b0
> >> [ 957.487392] [<ffffffff8112f856>] kthread+0xe6/0x100
> >> [ 957.490470] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> >> [ 957.493859] [<ffffffff81ab5ccf>] ret_from_fork+0x3f/0x70
> >> [ 957.497044] [<ffffffff8112f770>] ? kthread_worker_fn+0x190/0x190
> >>
> > > Reinette
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
>
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-26 15:28 ` Paul E. McKenney
@ 2016-03-26 18:49 ` Paul E. McKenney
2016-03-26 22:22 ` Mathieu Desnoyers
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-26 18:49 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sat, Mar 26, 2016 at 08:28:16AM -0700, Paul E. McKenney wrote:
> On Sat, Mar 26, 2016 at 12:29:31PM +0000, Mathieu Desnoyers wrote:
> > ----- On Mar 25, 2016, at 5:46 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
> >
> > > On Fri, Mar 25, 2016 at 09:24:14PM +0000, Chatre, Reinette wrote:
> > >> Hi Paul,
> > >>
> > >> On 2016-03-23, Paul E. McKenney wrote:
> > >> > Please boot with the following parameters:
> > >> >
> > >> > rcu_tree.rcu_kick_kthreads ftrace
> > >> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
> > >>
> > >> With these parameters I expected more details to show up in the kernel logs but
> > >> cannot find any. Even so, today I left the machine running again and when this
> > >> happened I think I was able to capture the trace data for the event. Please
> > >> find attached the trace information for the kernel message below. Since the
> > >> complete trace file is very big I trimmed it to show the time around this event
> > >> - hopefully this will contain the information you need. I would also like to
> > >> provide some additional information. The system on which I see these events had
> > >> a time that was _very_ wrong. I noticed that this issue occurs when
> > >> system-timesynd was one of the tasks calling the functions of interest to your
> > >> tracing and am wondering if a very out of sync time in process of being
> > >> corrected could be the cause of this issue? As an experiment I ensured the
> > >> system time was accurate before leaving the system idle overnight and I did not
> > >> see the issue the next morning.
> > >
> > > Ah! Yes, a sudden jump in time or a disagreement about the time among
> > > different components of the system can definitely cause these symptoms.
> > > We have sometimes seen these problems occur when a pair of CPUs have
> > > wildly different ideas about what time it is, for example. Please let
> > > me know how it goes.
> > >
> > > Also, in your trace, there are no sched_waking events for the rcu_preempt
> > > process that are not immediately followed by sched_wakeup, so your trace
> > > isn't showing the problem that I am seeing.
> >
> > This is interesting.
> >
> > Perhaps we could try with those commits reverted ?
> >
> > commit e3baac47f0e82c4be632f4f97215bb93bf16b342
> > Author: Peter Zijlstra <peterz@infradead.org>
> > Date: Wed Jun 4 10:31:18 2014 -0700
> >
> > sched/idle: Optimize try-to-wake-up IPI
> >
> > commit fd99f91aa007ba255aac44fe6cf21c1db398243a
> > Author: Peter Zijlstra <peterz@infradead.org>
> > Date: Wed Apr 9 15:35:08 2014 +0200
> >
> > sched/idle: Avoid spurious wakeup IPIs
> >
> > They appeared in 3.16.
>
> At this point, I am up for trying pretty much anything. ;-)
>
> Will give it a go.
And those certainly don't revert cleanly! Would patching the kernel
to remove the definition of TIF_POLLING_NRFLAG be useful? Or, more
to the point, is there some other course of action that would be more
useful? At this point, the test times are measured in weeks...
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-26 18:49 ` Paul E. McKenney
@ 2016-03-26 22:22 ` Mathieu Desnoyers
2016-03-27 1:34 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-03-26 22:22 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
----- On Mar 26, 2016, at 2:49 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
> On Sat, Mar 26, 2016 at 08:28:16AM -0700, Paul E. McKenney wrote:
>> On Sat, Mar 26, 2016 at 12:29:31PM +0000, Mathieu Desnoyers wrote:
>> > ----- On Mar 25, 2016, at 5:46 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com
>> > wrote:
>> >
>> > > On Fri, Mar 25, 2016 at 09:24:14PM +0000, Chatre, Reinette wrote:
>> > >> Hi Paul,
>> > >>
>> > >> On 2016-03-23, Paul E. McKenney wrote:
>> > >> > Please boot with the following parameters:
>> > >> >
>> > >> > rcu_tree.rcu_kick_kthreads ftrace
>> > >> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
>> > >>
>> > >> With these parameters I expected more details to show up in the kernel logs but
>> > >> cannot find any. Even so, today I left the machine running again and when this
>> > >> happened I think I was able to capture the trace data for the event. Please
>> > >> find attached the trace information for the kernel message below. Since the
>> > >> complete trace file is very big I trimmed it to show the time around this event
>> > >> - hopefully this will contain the information you need. I would also like to
>> > >> provide some additional information. The system on which I see these events had
>> > >> a time that was _very_ wrong. I noticed that this issue occurs when
>> > >> system-timesynd was one of the tasks calling the functions of interest to your
>> > >> tracing and am wondering if a very out of sync time in process of being
>> > >> corrected could be the cause of this issue? As an experiment I ensured the
>> > >> system time was accurate before leaving the system idle overnight and I did not
>> > >> see the issue the next morning.
>> > >
>> > > Ah! Yes, a sudden jump in time or a disagreement about the time among
>> > > different components of the system can definitely cause these symptoms.
>> > > We have sometimes seen these problems occur when a pair of CPUs have
>> > > wildly different ideas about what time it is, for example. Please let
>> > > me know how it goes.
>> > >
>> > > Also, in your trace, there are no sched_waking events for the rcu_preempt
>> > > process that are not immediately followed by sched_wakeup, so your trace
>> > > isn't showing the problem that I am seeing.
>> >
>> > This is interesting.
>> >
>> > Perhaps we could try with those commits reverted ?
>> >
>> > commit e3baac47f0e82c4be632f4f97215bb93bf16b342
>> > Author: Peter Zijlstra <peterz@infradead.org>
>> > Date: Wed Jun 4 10:31:18 2014 -0700
>> >
>> > sched/idle: Optimize try-to-wake-up IPI
>> >
>> > commit fd99f91aa007ba255aac44fe6cf21c1db398243a
>> > Author: Peter Zijlstra <peterz@infradead.org>
>> > Date: Wed Apr 9 15:35:08 2014 +0200
>> >
>> > sched/idle: Avoid spurious wakeup IPIs
>> >
>> > They appeared in 3.16.
>>
>> At this point, I am up for trying pretty much anything. ;-)
>>
>> Will give it a go.
>
> And those certainly don't revert cleanly! Would patching the kernel
> to remove the definition of TIF_POLLING_NRFLAG be useful? Or, more
> to the point, is there some other course of action that would be more
> useful? At this point, the test times are measured in weeks...
Indeed, patching the kernel to remove the TIF_POLLING_NRFLAG
definition would have an effect similar to reverting those two
commits.
Since testing takes a while, we could take a more aggressive
approach towards reproducing a possible race condition: we
could re-implement the _TIF_POLLING_NRFLAG vs _TIF_NEED_RESCHED
dance, along with the ttwu pending lock-list queue, within
a dummy test module, with custom data structures, and
stress-test the invariants. We could also create a Promela
model of these ipi-skip optimisations trying to validate
progress: whenever a wakeup is requested, there should
always be a scheduling performed, even if no further wakeup
is encountered.
Each of the two approaches proposed above might be a significant
endeavor, and would only validate my specific hunch. So it might
be a good idea to just let a test run for a few weeks with
TIF_POLLING_NRFLAG disabled meanwhile.
Thoughts ?
Thanks,
Mathieu
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-26 22:22 ` Mathieu Desnoyers
@ 2016-03-27 1:34 ` Paul E. McKenney
2016-03-27 13:48 ` Mathieu Desnoyers
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-27 1:34 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sat, Mar 26, 2016 at 10:22:57PM +0000, Mathieu Desnoyers wrote:
> ----- On Mar 26, 2016, at 2:49 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
>
> > On Sat, Mar 26, 2016 at 08:28:16AM -0700, Paul E. McKenney wrote:
> >> On Sat, Mar 26, 2016 at 12:29:31PM +0000, Mathieu Desnoyers wrote:
> >> > ----- On Mar 25, 2016, at 5:46 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com
> >> > wrote:
> >> >
> >> > > On Fri, Mar 25, 2016 at 09:24:14PM +0000, Chatre, Reinette wrote:
> >> > >> Hi Paul,
> >> > >>
> >> > >> On 2016-03-23, Paul E. McKenney wrote:
> >> > >> > Please boot with the following parameters:
> >> > >> >
> >> > >> > rcu_tree.rcu_kick_kthreads ftrace
> >> > >> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
> >> > >>
> >> > >> With these parameters I expected more details to show up in the kernel logs but
> >> > >> cannot find any. Even so, today I left the machine running again and when this
> >> > >> happened I think I was able to capture the trace data for the event. Please
> >> > >> find attached the trace information for the kernel message below. Since the
> >> > >> complete trace file is very big I trimmed it to show the time around this event
> >> > >> - hopefully this will contain the information you need. I would also like to
> >> > >> provide some additional information. The system on which I see these events had
> >> > >> a time that was _very_ wrong. I noticed that this issue occurs when
> >> > >> system-timesynd was one of the tasks calling the functions of interest to your
> >> > >> tracing and am wondering if a very out of sync time in process of being
> >> > >> corrected could be the cause of this issue? As an experiment I ensured the
> >> > >> system time was accurate before leaving the system idle overnight and I did not
> >> > >> see the issue the next morning.
> >> > >
> >> > > Ah! Yes, a sudden jump in time or a disagreement about the time among
> >> > > different components of the system can definitely cause these symptoms.
> >> > > We have sometimes seen these problems occur when a pair of CPUs have
> >> > > wildly different ideas about what time it is, for example. Please let
> >> > > me know how it goes.
> >> > >
> >> > > Also, in your trace, there are no sched_waking events for the rcu_preempt
> >> > > process that are not immediately followed by sched_wakeup, so your trace
> >> > > isn't showing the problem that I am seeing.
> >> >
> >> > This is interesting.
> >> >
> >> > Perhaps we could try with those commits reverted ?
> >> >
> >> > commit e3baac47f0e82c4be632f4f97215bb93bf16b342
> >> > Author: Peter Zijlstra <peterz@infradead.org>
> >> > Date: Wed Jun 4 10:31:18 2014 -0700
> >> >
> >> > sched/idle: Optimize try-to-wake-up IPI
> >> >
> >> > commit fd99f91aa007ba255aac44fe6cf21c1db398243a
> >> > Author: Peter Zijlstra <peterz@infradead.org>
> >> > Date: Wed Apr 9 15:35:08 2014 +0200
> >> >
> >> > sched/idle: Avoid spurious wakeup IPIs
> >> >
> >> > They appeared in 3.16.
> >>
> >> At this point, I am up for trying pretty much anything. ;-)
> >>
> >> Will give it a go.
> >
> > And those certainly don't revert cleanly! Would patching the kernel
> > to remove the definition of TIF_POLLING_NRFLAG be useful? Or, more
> > to the point, is there some other course of action that would be more
> > useful? At this point, the test times are measured in weeks...
>
> Indeed, patching the kernel to remove the TIF_POLLING_NRFLAG
> definition would have an effect similar to reverting those two
> commits.
>
> Since testing takes a while, we could take a more aggressive
> approach towards reproducing a possible race condition: we
> could re-implement the _TIF_POLLING_NRFLAG vs _TIF_NEED_RESCHED
> dance, along with the ttwu pending lock-list queue, within
> a dummy test module, with custom data structures, and
> stress-test the invariants. We could also create a Promela
> model of these ipi-skip optimisations trying to validate
> progress: whenever a wakeup is requested, there should
> always be a scheduling performed, even if no further wakeup
> is encountered.
>
> Each of the two approaches proposed above might be a significant
> endeavor, and would only validate my specific hunch. So it might
> be a good idea to just let a test run for a few weeks with
> TIF_POLLING_NRFLAG disabled meanwhile.
This makes a lot of sense. I did some short runs, and nothing broke
too badly. However, I left some diagnostic stuff in that obscured
the outcome. I disabled the diagnostic stuff and am running overnight.
I might need to go further and revert some of my diagnostic patches,
but let's see where it is in the morning.
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 1:34 ` Paul E. McKenney
@ 2016-03-27 13:48 ` Mathieu Desnoyers
2016-03-27 15:40 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-03-27 13:48 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
----- On Mar 26, 2016, at 9:34 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
> On Sat, Mar 26, 2016 at 10:22:57PM +0000, Mathieu Desnoyers wrote:
>> ----- On Mar 26, 2016, at 2:49 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com
>> wrote:
>>
>> > On Sat, Mar 26, 2016 at 08:28:16AM -0700, Paul E. McKenney wrote:
>> >> On Sat, Mar 26, 2016 at 12:29:31PM +0000, Mathieu Desnoyers wrote:
>> >> > ----- On Mar 25, 2016, at 5:46 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com
>> >> > wrote:
>> >> >
>> >> > > On Fri, Mar 25, 2016 at 09:24:14PM +0000, Chatre, Reinette wrote:
>> >> > >> Hi Paul,
>> >> > >>
>> >> > >> On 2016-03-23, Paul E. McKenney wrote:
>> >> > >> > Please boot with the following parameters:
>> >> > >> >
>> >> > >> > rcu_tree.rcu_kick_kthreads ftrace
>> >> > >> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
>> >> > >>
>> >> > >> With these parameters I expected more details to show up in the kernel logs but
>> >> > >> cannot find any. Even so, today I left the machine running again and when this
>> >> > >> happened I think I was able to capture the trace data for the event. Please
>> >> > >> find attached the trace information for the kernel message below. Since the
>> >> > >> complete trace file is very big I trimmed it to show the time around this event
>> >> > >> - hopefully this will contain the information you need. I would also like to
>> >> > >> provide some additional information. The system on which I see these events had
>> >> > >> a time that was _very_ wrong. I noticed that this issue occurs when
>> >> > >> system-timesynd was one of the tasks calling the functions of interest to your
>> >> > >> tracing and am wondering if a very out of sync time in process of being
>> >> > >> corrected could be the cause of this issue? As an experiment I ensured the
>> >> > >> system time was accurate before leaving the system idle overnight and I did not
>> >> > >> see the issue the next morning.
>> >> > >
>> >> > > Ah! Yes, a sudden jump in time or a disagreement about the time among
>> >> > > different components of the system can definitely cause these symptoms.
>> >> > > We have sometimes seen these problems occur when a pair of CPUs have
>> >> > > wildly different ideas about what time it is, for example. Please let
>> >> > > me know how it goes.
>> >> > >
>> >> > > Also, in your trace, there are no sched_waking events for the rcu_preempt
>> >> > > process that are not immediately followed by sched_wakeup, so your trace
>> >> > > isn't showing the problem that I am seeing.
>> >> >
>> >> > This is interesting.
>> >> >
>> >> > Perhaps we could try with those commits reverted ?
>> >> >
>> >> > commit e3baac47f0e82c4be632f4f97215bb93bf16b342
>> >> > Author: Peter Zijlstra <peterz@infradead.org>
>> >> > Date: Wed Jun 4 10:31:18 2014 -0700
>> >> >
>> >> > sched/idle: Optimize try-to-wake-up IPI
>> >> >
>> >> > commit fd99f91aa007ba255aac44fe6cf21c1db398243a
>> >> > Author: Peter Zijlstra <peterz@infradead.org>
>> >> > Date: Wed Apr 9 15:35:08 2014 +0200
>> >> >
>> >> > sched/idle: Avoid spurious wakeup IPIs
>> >> >
>> >> > They appeared in 3.16.
>> >>
>> >> At this point, I am up for trying pretty much anything. ;-)
>> >>
>> >> Will give it a go.
>> >
>> > And those certainly don't revert cleanly! Would patching the kernel
>> > to remove the definition of TIF_POLLING_NRFLAG be useful? Or, more
>> > to the point, is there some other course of action that would be more
>> > useful? At this point, the test times are measured in weeks...
>>
>> Indeed, patching the kernel to remove the TIF_POLLING_NRFLAG
>> definition would have an effect similar to reverting those two
>> commits.
>>
>> Since testing takes a while, we could take a more aggressive
>> approach towards reproducing a possible race condition: we
>> could re-implement the _TIF_POLLING_NRFLAG vs _TIF_NEED_RESCHED
>> dance, along with the ttwu pending lock-list queue, within
>> a dummy test module, with custom data structures, and
>> stress-test the invariants. We could also create a Promela
>> model of these ipi-skip optimisations trying to validate
>> progress: whenever a wakeup is requested, there should
>> always be a scheduling performed, even if no further wakeup
>> is encountered.
>>
>> Each of the two approaches proposed above might be a significant
>> endeavor, and would only validate my specific hunch. So it might
>> be a good idea to just let a test run for a few weeks with
>> TIF_POLLING_NRFLAG disabled meanwhile.
>
> This makes a lot of sense. I did some short runs, and nothing broke
> too badly. However, I left some diagnostic stuff in that obscured
> the outcome. I disabled the diagnostic stuff and am running overnight.
> I might need to go further and revert some of my diagnostic patches,
> but let's see where it is in the morning.
Here is another idea that might help us reproduce this issue faster.
If you can afford it, you might want to just throw more similar hardware
at the problem. Assuming the problem shows up randomly, but its odds
of showing up make it happen only once per week, if we have 100 machines
idling in the same way in parallel, we should be able to reproduce it
within about 1-2 hours.
Of course, if the problem really need each machine to "degrade" for
a week (e.g. memory fragmentation), that would not help. It's only for
races that appear to be showing up randomly.
Thoughts ?
Thanks,
Mathieu
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 13:48 ` Mathieu Desnoyers
@ 2016-03-27 15:40 ` Paul E. McKenney
2016-03-27 20:00 ` Paul E. McKenney
` (2 more replies)
0 siblings, 3 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-27 15:40 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sun, Mar 27, 2016 at 01:48:55PM +0000, Mathieu Desnoyers wrote:
> ----- On Mar 26, 2016, at 9:34 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
>
> > On Sat, Mar 26, 2016 at 10:22:57PM +0000, Mathieu Desnoyers wrote:
> >> ----- On Mar 26, 2016, at 2:49 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com
> >> wrote:
> >>
> >> > On Sat, Mar 26, 2016 at 08:28:16AM -0700, Paul E. McKenney wrote:
> >> >> On Sat, Mar 26, 2016 at 12:29:31PM +0000, Mathieu Desnoyers wrote:
> >> >> > ----- On Mar 25, 2016, at 5:46 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com
> >> >> > wrote:
> >> >> >
> >> >> > > On Fri, Mar 25, 2016 at 09:24:14PM +0000, Chatre, Reinette wrote:
> >> >> > >> Hi Paul,
> >> >> > >>
> >> >> > >> On 2016-03-23, Paul E. McKenney wrote:
> >> >> > >> > Please boot with the following parameters:
> >> >> > >> >
> >> >> > >> > rcu_tree.rcu_kick_kthreads ftrace
> >> >> > >> > trace_event=sched_waking,sched_wakeup,sched_wake_idle_without_ipi
> >> >> > >>
> >> >> > >> With these parameters I expected more details to show up in the kernel logs but
> >> >> > >> cannot find any. Even so, today I left the machine running again and when this
> >> >> > >> happened I think I was able to capture the trace data for the event. Please
> >> >> > >> find attached the trace information for the kernel message below. Since the
> >> >> > >> complete trace file is very big I trimmed it to show the time around this event
> >> >> > >> - hopefully this will contain the information you need. I would also like to
> >> >> > >> provide some additional information. The system on which I see these events had
> >> >> > >> a time that was _very_ wrong. I noticed that this issue occurs when
> >> >> > >> system-timesynd was one of the tasks calling the functions of interest to your
> >> >> > >> tracing and am wondering if a very out of sync time in process of being
> >> >> > >> corrected could be the cause of this issue? As an experiment I ensured the
> >> >> > >> system time was accurate before leaving the system idle overnight and I did not
> >> >> > >> see the issue the next morning.
> >> >> > >
> >> >> > > Ah! Yes, a sudden jump in time or a disagreement about the time among
> >> >> > > different components of the system can definitely cause these symptoms.
> >> >> > > We have sometimes seen these problems occur when a pair of CPUs have
> >> >> > > wildly different ideas about what time it is, for example. Please let
> >> >> > > me know how it goes.
> >> >> > >
> >> >> > > Also, in your trace, there are no sched_waking events for the rcu_preempt
> >> >> > > process that are not immediately followed by sched_wakeup, so your trace
> >> >> > > isn't showing the problem that I am seeing.
> >> >> >
> >> >> > This is interesting.
> >> >> >
> >> >> > Perhaps we could try with those commits reverted ?
> >> >> >
> >> >> > commit e3baac47f0e82c4be632f4f97215bb93bf16b342
> >> >> > Author: Peter Zijlstra <peterz@infradead.org>
> >> >> > Date: Wed Jun 4 10:31:18 2014 -0700
> >> >> >
> >> >> > sched/idle: Optimize try-to-wake-up IPI
> >> >> >
> >> >> > commit fd99f91aa007ba255aac44fe6cf21c1db398243a
> >> >> > Author: Peter Zijlstra <peterz@infradead.org>
> >> >> > Date: Wed Apr 9 15:35:08 2014 +0200
> >> >> >
> >> >> > sched/idle: Avoid spurious wakeup IPIs
> >> >> >
> >> >> > They appeared in 3.16.
> >> >>
> >> >> At this point, I am up for trying pretty much anything. ;-)
> >> >>
> >> >> Will give it a go.
> >> >
> >> > And those certainly don't revert cleanly! Would patching the kernel
> >> > to remove the definition of TIF_POLLING_NRFLAG be useful? Or, more
> >> > to the point, is there some other course of action that would be more
> >> > useful? At this point, the test times are measured in weeks...
> >>
> >> Indeed, patching the kernel to remove the TIF_POLLING_NRFLAG
> >> definition would have an effect similar to reverting those two
> >> commits.
> >>
> >> Since testing takes a while, we could take a more aggressive
> >> approach towards reproducing a possible race condition: we
> >> could re-implement the _TIF_POLLING_NRFLAG vs _TIF_NEED_RESCHED
> >> dance, along with the ttwu pending lock-list queue, within
> >> a dummy test module, with custom data structures, and
> >> stress-test the invariants. We could also create a Promela
> >> model of these ipi-skip optimisations trying to validate
> >> progress: whenever a wakeup is requested, there should
> >> always be a scheduling performed, even if no further wakeup
> >> is encountered.
> >>
> >> Each of the two approaches proposed above might be a significant
> >> endeavor, and would only validate my specific hunch. So it might
> >> be a good idea to just let a test run for a few weeks with
> >> TIF_POLLING_NRFLAG disabled meanwhile.
> >
> > This makes a lot of sense. I did some short runs, and nothing broke
> > too badly. However, I left some diagnostic stuff in that obscured
> > the outcome. I disabled the diagnostic stuff and am running overnight.
> > I might need to go further and revert some of my diagnostic patches,
> > but let's see where it is in the morning.
>
> Here is another idea that might help us reproduce this issue faster.
> If you can afford it, you might want to just throw more similar hardware
> at the problem. Assuming the problem shows up randomly, but its odds
> of showing up make it happen only once per week, if we have 100 machines
> idling in the same way in parallel, we should be able to reproduce it
> within about 1-2 hours.
>
> Of course, if the problem really need each machine to "degrade" for
> a week (e.g. memory fragmentation), that would not help. It's only for
> races that appear to be showing up randomly.
Certain rcutorture tests sometimes hit it within an hour (TREE03).
Last night's TREE03 ran six hours without incident, which is unusual
given that I didn't enable any tracepoints, but does not any significant
level of statitstical confidence. The set will finish in a few hours,
at which point I will start parallel batches of TREE03 to see what
comes up.
Feel free to take a look at kernel/rcu/waketorture.c for my (feeble
thus far) attempt to speed things up. I am thinking that I need to
push sleeping tasks onto idle CPUs to make it happen more often.
My current approach to this is to run with CPU utilizations of about
40% and using hrtimer with a prime number of microseconds to avoid
synchronization. That should in theory get me a 40% chance of hitting
an idle CPU with a wakeup, and a reasonable chance of racing with a
CPU-hotplug operation. But maybe the wakeup needs to be remote or
some such, in which case waketorture also needs to move stuff around.
Oh, and the patch I am running with is below. I am running x86, and so
some other architectures would of course need the corresponding patch
on that architecture.
Thanx, Paul
------------------------------------------------------------------------
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index c7b5510..062ae53 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -102,7 +102,7 @@ struct thread_info {
#define TIF_FORK 18 /* ret_from_fork */
#define TIF_NOHZ 19 /* in adaptive nohz mode */
#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
-#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
+/* #define TIF_POLLING_NRFLAG 21 idle is polling for TIF_NEED_RESCHED */
#define TIF_IO_BITMAP 22 /* uses I/O bitmap */
#define TIF_FORCED_TF 24 /* true if TF in eflags artificially */
#define TIF_BLOCKSTEP 25 /* set when we want DEBUGCTLMSR_BTF */
^ permalink raw reply related [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 15:40 ` Paul E. McKenney
@ 2016-03-27 20:00 ` Paul E. McKenney
2016-03-27 20:45 ` Peter Zijlstra
2016-03-27 20:53 ` Peter Zijlstra
2 siblings, 0 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-27 20:00 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, Peter Zijlstra, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sun, Mar 27, 2016 at 08:40:18AM -0700, Paul E. McKenney wrote:
> On Sun, Mar 27, 2016 at 01:48:55PM +0000, Mathieu Desnoyers wrote:
> > ----- On Mar 26, 2016, at 9:34 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
> > > On Sat, Mar 26, 2016 at 10:22:57PM +0000, Mathieu Desnoyers wrote:
> > >> ----- On Mar 26, 2016, at 2:49 PM, Paul E. McKenney paulmck@linux.vnet.ibm.com
> > >> wrote:
> > >> > On Sat, Mar 26, 2016 at 08:28:16AM -0700, Paul E. McKenney wrote:
> > >> >> On Sat, Mar 26, 2016 at 12:29:31PM +0000, Mathieu Desnoyers wrote:
[ . . . ]
> > >> >> > Perhaps we could try with those commits reverted ?
> > >> >> >
> > >> >> > commit e3baac47f0e82c4be632f4f97215bb93bf16b342
> > >> >> > Author: Peter Zijlstra <peterz@infradead.org>
> > >> >> > Date: Wed Jun 4 10:31:18 2014 -0700
> > >> >> >
> > >> >> > sched/idle: Optimize try-to-wake-up IPI
> > >> >> >
> > >> >> > commit fd99f91aa007ba255aac44fe6cf21c1db398243a
> > >> >> > Author: Peter Zijlstra <peterz@infradead.org>
> > >> >> > Date: Wed Apr 9 15:35:08 2014 +0200
> > >> >> >
> > >> >> > sched/idle: Avoid spurious wakeup IPIs
> > >> >> >
> > >> >> > They appeared in 3.16.
> > >> >>
> > >> >> At this point, I am up for trying pretty much anything. ;-)
> > >> >>
> > >> >> Will give it a go.
> > >> >
> > >> > And those certainly don't revert cleanly! Would patching the kernel
> > >> > to remove the definition of TIF_POLLING_NRFLAG be useful? Or, more
> > >> > to the point, is there some other course of action that would be more
> > >> > useful? At this point, the test times are measured in weeks...
> > >>
> > >> Indeed, patching the kernel to remove the TIF_POLLING_NRFLAG
> > >> definition would have an effect similar to reverting those two
> > >> commits.
> > >>
> > >> Since testing takes a while, we could take a more aggressive
> > >> approach towards reproducing a possible race condition: we
> > >> could re-implement the _TIF_POLLING_NRFLAG vs _TIF_NEED_RESCHED
> > >> dance, along with the ttwu pending lock-list queue, within
> > >> a dummy test module, with custom data structures, and
> > >> stress-test the invariants. We could also create a Promela
> > >> model of these ipi-skip optimisations trying to validate
> > >> progress: whenever a wakeup is requested, there should
> > >> always be a scheduling performed, even if no further wakeup
> > >> is encountered.
> > >>
> > >> Each of the two approaches proposed above might be a significant
> > >> endeavor, and would only validate my specific hunch. So it might
> > >> be a good idea to just let a test run for a few weeks with
> > >> TIF_POLLING_NRFLAG disabled meanwhile.
> > >
> > > This makes a lot of sense. I did some short runs, and nothing broke
> > > too badly. However, I left some diagnostic stuff in that obscured
> > > the outcome. I disabled the diagnostic stuff and am running overnight.
> > > I might need to go further and revert some of my diagnostic patches,
> > > but let's see where it is in the morning.
> >
> > Here is another idea that might help us reproduce this issue faster.
> > If you can afford it, you might want to just throw more similar hardware
> > at the problem. Assuming the problem shows up randomly, but its odds
> > of showing up make it happen only once per week, if we have 100 machines
> > idling in the same way in parallel, we should be able to reproduce it
> > within about 1-2 hours.
> >
> > Of course, if the problem really need each machine to "degrade" for
> > a week (e.g. memory fragmentation), that would not help. It's only for
> > races that appear to be showing up randomly.
>
> Certain rcutorture tests sometimes hit it within an hour (TREE03).
> Last night's TREE03 ran six hours without incident, which is unusual
> given that I didn't enable any tracepoints, but does not any significant
> level of statitstical confidence. The set will finish in a few hours,
> at which point I will start parallel batches of TREE03 to see what
> comes up.
>
> Feel free to take a look at kernel/rcu/waketorture.c for my (feeble
> thus far) attempt to speed things up. I am thinking that I need to
> push sleeping tasks onto idle CPUs to make it happen more often.
> My current approach to this is to run with CPU utilizations of about
> 40% and using hrtimer with a prime number of microseconds to avoid
> synchronization. That should in theory get me a 40% chance of hitting
> an idle CPU with a wakeup, and a reasonable chance of racing with a
> CPU-hotplug operation. But maybe the wakeup needs to be remote or
> some such, in which case waketorture also needs to move stuff around.
>
> Oh, and the patch I am running with is below. I am running x86, and so
> some other architectures would of course need the corresponding patch
> on that architecture.
And it passed a full set of six-hour runs. Unusual of late, but not
unheard of. Next step is to focus on TREE03 overnight.
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 15:40 ` Paul E. McKenney
2016-03-27 20:00 ` Paul E. McKenney
@ 2016-03-27 20:45 ` Peter Zijlstra
2016-03-27 21:06 ` Paul E. McKenney
2016-03-28 1:44 ` Mathieu Desnoyers
2016-03-27 20:53 ` Peter Zijlstra
2 siblings, 2 replies; 79+ messages in thread
From: Peter Zijlstra @ 2016-03-27 20:45 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sun, Mar 27, 2016 at 08:40:18AM -0700, Paul E. McKenney wrote:
> Oh, and the patch I am running with is below. I am running x86, and so
> some other architectures would of course need the corresponding patch
> on that architecture.
> -#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
> +/* #define TIF_POLLING_NRFLAG 21 idle is polling for TIF_NEED_RESCHED */
x86 is the only arch that really uses this heavily IIRC.
Most of the other archs need interrupts to wake up remote cores.
So what we try to do is avoid sending IPIs when the CPU is idle, for the
remote wakeup case we use set_nr_if_polling() which sets
TIF_NEED_RESCHED if TIF_POLLING_NRFLAG was set. If it wasn't, we'll send
the IPI. Otherwise we rely on the idle loop to do sched_ttwu_pending()
when it breaks out of loop due to TIF_NEED_RESCHED.
But, you need hotplug for this to happen, right?
We should not be migrating towards, or waking on, CPUs no longer present
in cpu_active_map, and there is a rcu/sched_sync() after clearing that
bit. Furthermore, migration_call() does a sched_ttwu_pending() (waking
any remaining stragglers) before we migrate all runnable tasks off the
dying CPU.
The other interesting case would be resched_cpu(), which uses
set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
not set. If indeed not, it will send an IPI.
This assumes the idle 'exit' path will do the same as the IPI does; and
if you look at cpu_idle_loop() it does indeed do both
preempt_fold_need_resched() and sched_ttwu_pending().
Note that one cannot rely on irq_enter()/irq_exit() being called for the
scheduler IPI.
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 15:40 ` Paul E. McKenney
2016-03-27 20:00 ` Paul E. McKenney
2016-03-27 20:45 ` Peter Zijlstra
@ 2016-03-27 20:53 ` Peter Zijlstra
2016-03-27 21:07 ` Paul E. McKenney
2 siblings, 1 reply; 79+ messages in thread
From: Peter Zijlstra @ 2016-03-27 20:53 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sun, Mar 27, 2016 at 08:40:18AM -0700, Paul E. McKenney wrote:
> Oh, and the patch I am running with is below. I am running x86, and so
> some other architectures would of course need the corresponding patch
> on that architecture.
> -#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
Also note that ARM (v7) which Ross is running doesn't have this to begin
with.
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-21 16:22 ` Jacob Pan
2016-03-21 17:26 ` Paul E. McKenney
@ 2016-03-27 20:54 ` Peter Zijlstra
2016-03-27 21:09 ` Paul E. McKenney
1 sibling, 1 reply; 79+ messages in thread
From: Peter Zijlstra @ 2016-03-27 20:54 UTC (permalink / raw)
To: Jacob Pan
Cc: paulmck, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, lkml, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, rostedt, David Howells, Eric Dumazet,
Darren Hart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar, Chatre, Reinette
On Mon, Mar 21, 2016 at 09:22:30AM -0700, Jacob Pan wrote:
> > > We're seeing a similar stall (~60 seconds) on an x86 development
> > > system here. Any luck tracking down the cause of this? If not, any
> > > suggestions for traces that might be helpful?
> +Reinette, she has the system that can reproduce the issue. I
> believe she is having some other problems with it at the moment. But
> the .config should be available. Version is v4.5.
Does that system have MONITOR/MWAIT errata?
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 20:45 ` Peter Zijlstra
@ 2016-03-27 21:06 ` Paul E. McKenney
2016-03-28 6:25 ` Peter Zijlstra
2016-03-28 1:44 ` Mathieu Desnoyers
1 sibling, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-27 21:06 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sun, Mar 27, 2016 at 10:45:59PM +0200, Peter Zijlstra wrote:
> On Sun, Mar 27, 2016 at 08:40:18AM -0700, Paul E. McKenney wrote:
> > Oh, and the patch I am running with is below. I am running x86, and so
> > some other architectures would of course need the corresponding patch
> > on that architecture.
>
> > -#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
> > +/* #define TIF_POLLING_NRFLAG 21 idle is polling for TIF_NEED_RESCHED */
>
> x86 is the only arch that really uses this heavily IIRC.
>
> Most of the other archs need interrupts to wake up remote cores.
>
> So what we try to do is avoid sending IPIs when the CPU is idle, for the
> remote wakeup case we use set_nr_if_polling() which sets
> TIF_NEED_RESCHED if TIF_POLLING_NRFLAG was set. If it wasn't, we'll send
> the IPI. Otherwise we rely on the idle loop to do sched_ttwu_pending()
> when it breaks out of loop due to TIF_NEED_RESCHED.
>
> But, you need hotplug for this to happen, right?
I do, but Ross Green is seeing something that looks similar, and without
CPU hotplug.
> We should not be migrating towards, or waking on, CPUs no longer present
> in cpu_active_map, and there is a rcu/sched_sync() after clearing that
> bit. Furthermore, migration_call() does a sched_ttwu_pending() (waking
> any remaining stragglers) before we migrate all runnable tasks off the
> dying CPU.
OK, so I should instrument migration_call() if I get the repro rate up?
> The other interesting case would be resched_cpu(), which uses
> set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
> atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
> not set. If indeed not, it will send an IPI.
>
> This assumes the idle 'exit' path will do the same as the IPI does; and
> if you look at cpu_idle_loop() it does indeed do both
> preempt_fold_need_resched() and sched_ttwu_pending().
>
> Note that one cannot rely on irq_enter()/irq_exit() being called for the
> scheduler IPI.
OK, thank you for the info! Any specific debug actions?
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 20:53 ` Peter Zijlstra
@ 2016-03-27 21:07 ` Paul E. McKenney
0 siblings, 0 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-27 21:07 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sun, Mar 27, 2016 at 10:53:18PM +0200, Peter Zijlstra wrote:
> On Sun, Mar 27, 2016 at 08:40:18AM -0700, Paul E. McKenney wrote:
> > Oh, and the patch I am running with is below. I am running x86, and so
> > some other architectures would of course need the corresponding patch
> > on that architecture.
>
> > -#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
>
> Also note that ARM (v7) which Ross is running doesn't have this to begin
> with.
He might well be seeing some other bug, then. Reinette might be instead
seeing time-synchronization issues, perhaps that is also Ross's problem.
Or maybe there is more than one bug. ;-)
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 20:54 ` Peter Zijlstra
@ 2016-03-27 21:09 ` Paul E. McKenney
2016-03-28 6:28 ` Peter Zijlstra
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-27 21:09 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, lkml, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, rostedt, David Howells, Eric Dumazet,
Darren Hart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar, Chatre, Reinette
On Sun, Mar 27, 2016 at 10:54:39PM +0200, Peter Zijlstra wrote:
> On Mon, Mar 21, 2016 at 09:22:30AM -0700, Jacob Pan wrote:
> > > > We're seeing a similar stall (~60 seconds) on an x86 development
> > > > system here. Any luck tracking down the cause of this? If not, any
> > > > suggestions for traces that might be helpful?
>
> > +Reinette, she has the system that can reproduce the issue. I
> > believe she is having some other problems with it at the moment. But
> > the .config should be available. Version is v4.5.
>
> Does that system have MONITOR/MWAIT errata?
On the off-chance that this question was also directed at me, here is
what I am running on. I am running in a qemu/KVM virtual machine, in
case that matters.
Thanx, Paul
processor : 63
vendor_id : GenuineIntel
cpu family : 6
model : 47
model name : Intel(R) Xeon(R) CPU E7- 4820 @ 2.00GHz
stepping : 2
microcode : 0x37
cpu MHz : 1064.000
cache size : 18432 KB
physical id : 3
siblings : 16
core id : 25
cpu cores : 8
apicid : 243
initial apicid : 243
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt aes lahf_lm ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips : 3990.01
clflush size : 64
cache_alignment : 64
address sizes : 44 bits physical, 48 bits virtual
power management:
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 20:45 ` Peter Zijlstra
2016-03-27 21:06 ` Paul E. McKenney
@ 2016-03-28 1:44 ` Mathieu Desnoyers
2016-03-28 2:23 ` Mathieu Desnoyers
1 sibling, 1 reply; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-03-28 1:44 UTC (permalink / raw)
To: Peter Zijlstra, Paul E. McKenney
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, lkml, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, rostedt, David Howells, Eric Dumazet,
Darren Hart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar
----- On Mar 27, 2016, at 4:45 PM, Peter Zijlstra peterz@infradead.org wrote:
> On Sun, Mar 27, 2016 at 08:40:18AM -0700, Paul E. McKenney wrote:
>> Oh, and the patch I am running with is below. I am running x86, and so
>> some other architectures would of course need the corresponding patch
>> on that architecture.
>
>> -#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
>> +/* #define TIF_POLLING_NRFLAG 21 idle is polling for TIF_NEED_RESCHED */
>
> x86 is the only arch that really uses this heavily IIRC.
>
> Most of the other archs need interrupts to wake up remote cores.
>
> So what we try to do is avoid sending IPIs when the CPU is idle, for the
> remote wakeup case we use set_nr_if_polling() which sets
> TIF_NEED_RESCHED if TIF_POLLING_NRFLAG was set. If it wasn't, we'll send
> the IPI. Otherwise we rely on the idle loop to do sched_ttwu_pending()
> when it breaks out of loop due to TIF_NEED_RESCHED.
>
> But, you need hotplug for this to happen, right?
My understanding is that this seems to be detection of failures to be
awakened for a long time on idle CPUs. It therefore seems to be more
idle-related than cpu hotplug-related. I'm not saying that there is
no issue with hotplug, just that the investigation so far seems to
target mostly idle systems, AFAIK without stressing hotplug.
>
> We should not be migrating towards, or waking on, CPUs no longer present
> in cpu_active_map, and there is a rcu/sched_sync() after clearing that
> bit. Furthermore, migration_call() does a sched_ttwu_pending() (waking
> any remaining stragglers) before we migrate all runnable tasks off the
> dying CPU.
>
>
>
> The other interesting case would be resched_cpu(), which uses
> set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
> atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
> not set. If indeed not, it will send an IPI.
>
> This assumes the idle 'exit' path will do the same as the IPI does; and
> if you look at cpu_idle_loop() it does indeed do both
> preempt_fold_need_resched() and sched_ttwu_pending().
>
> Note that one cannot rely on irq_enter()/irq_exit() being called for the
> scheduler IPI.
Looking at commit e3baac47f0e82c4be632f4f97215bb93bf16b342 :
set_nr_if_polling() returns true if the ti->flags read has the
_TIF_NEED_RESCHED bit set, which will skip the IPI.
But it seems weird. The side that calls set_nr_if_polling()
does the following:
1) llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)
2) set_nr_if_polling(rq->idle)
3) (don't do smp_send_reschedule(cpu) since set_nr_if_polling() returned
true)
The idle loop does:
1) __current_set_polling()
2) __current_clr_polling()
3) smp_mb__after_atomic()
4) sched_ttwu_pending()
5) schedule_preempt_disabled()
-> This will clear the TIF_NEED_RESCHED flag
While the idle loop is in sched_ttwu_pending(), after
it has done the llist_del_all() (thus has grabbed all the
list entries), TIF_NEED_RESCHED is still set. If both list_all and
set_nr_if_polling() are called right after the llist_del_all(), we
will end up in a situation where we have an entry in the list, but
there won't be any reschedule sent on the idle CPU until something
else awakens it. On a _very_ idle CPU, this could take some time.
set_nr_and_not_polling() don't seem to have the same issue, because
it does not return true if TIF_NEED_RESCHED is observed as being
already set: it really just depends on the state of the TIF_POLLING_NRFLAG
bit.
Am I missing something important ?
Thanks,
Mathieu
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 1:44 ` Mathieu Desnoyers
@ 2016-03-28 2:23 ` Mathieu Desnoyers
2016-03-28 6:13 ` Peter Zijlstra
0 siblings, 1 reply; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-03-28 2:23 UTC (permalink / raw)
To: Peter Zijlstra, Paul E. McKenney
Cc: Chatre, Reinette, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, Thomas Gleixner, lkml, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, rostedt, David Howells, Eric Dumazet,
Darren Hart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar
----- On Mar 27, 2016, at 9:44 PM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:
> ----- On Mar 27, 2016, at 4:45 PM, Peter Zijlstra peterz@infradead.org wrote:
>
>> On Sun, Mar 27, 2016 at 08:40:18AM -0700, Paul E. McKenney wrote:
>>> Oh, and the patch I am running with is below. I am running x86, and so
>>> some other architectures would of course need the corresponding patch
>>> on that architecture.
>>
>>> -#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
>>> +/* #define TIF_POLLING_NRFLAG 21 idle is polling for TIF_NEED_RESCHED */
>>
>> x86 is the only arch that really uses this heavily IIRC.
>>
>> Most of the other archs need interrupts to wake up remote cores.
>>
>> So what we try to do is avoid sending IPIs when the CPU is idle, for the
>> remote wakeup case we use set_nr_if_polling() which sets
>> TIF_NEED_RESCHED if TIF_POLLING_NRFLAG was set. If it wasn't, we'll send
>> the IPI. Otherwise we rely on the idle loop to do sched_ttwu_pending()
>> when it breaks out of loop due to TIF_NEED_RESCHED.
>>
>> But, you need hotplug for this to happen, right?
>
> My understanding is that this seems to be detection of failures to be
> awakened for a long time on idle CPUs. It therefore seems to be more
> idle-related than cpu hotplug-related. I'm not saying that there is
> no issue with hotplug, just that the investigation so far seems to
> target mostly idle systems, AFAIK without stressing hotplug.
>
>>
>> We should not be migrating towards, or waking on, CPUs no longer present
>> in cpu_active_map, and there is a rcu/sched_sync() after clearing that
>> bit. Furthermore, migration_call() does a sched_ttwu_pending() (waking
>> any remaining stragglers) before we migrate all runnable tasks off the
>> dying CPU.
>>
>>
>>
>> The other interesting case would be resched_cpu(), which uses
>> set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
>> atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
>> not set. If indeed not, it will send an IPI.
>>
>> This assumes the idle 'exit' path will do the same as the IPI does; and
>> if you look at cpu_idle_loop() it does indeed do both
>> preempt_fold_need_resched() and sched_ttwu_pending().
>>
>> Note that one cannot rely on irq_enter()/irq_exit() being called for the
>> scheduler IPI.
>
> Looking at commit e3baac47f0e82c4be632f4f97215bb93bf16b342 :
>
> set_nr_if_polling() returns true if the ti->flags read has the
> _TIF_NEED_RESCHED bit set, which will skip the IPI.
>
> But it seems weird. The side that calls set_nr_if_polling()
> does the following:
> 1) llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)
> 2) set_nr_if_polling(rq->idle)
> 3) (don't do smp_send_reschedule(cpu) since set_nr_if_polling() returned
> true)
>
> The idle loop does:
> 1) __current_set_polling()
> 2) __current_clr_polling()
> 3) smp_mb__after_atomic()
> 4) sched_ttwu_pending()
> 5) schedule_preempt_disabled()
> -> This will clear the TIF_NEED_RESCHED flag
>
> While the idle loop is in sched_ttwu_pending(), after
> it has done the llist_del_all() (thus has grabbed all the
> list entries), TIF_NEED_RESCHED is still set. If both list_all and
> set_nr_if_polling() are called right after the llist_del_all(), we
> will end up in a situation where we have an entry in the list, but
> there won't be any reschedule sent on the idle CPU until something
> else awakens it. On a _very_ idle CPU, this could take some time.
>
> set_nr_and_not_polling() don't seem to have the same issue, because
> it does not return true if TIF_NEED_RESCHED is observed as being
> already set: it really just depends on the state of the TIF_POLLING_NRFLAG
> bit.
>
> Am I missing something important ?
Well, it seems that the test for _TIF_POLLING_NRFLAG in set_nr_if_polling()
just before the test for _TIF_NEED_RESCHED should take care of it: while in
sched_ttwu_pending within the idle loop, the TIF_POLLING_NRFLAG should be
cleared, thus causing set_nr_if_polling to return false.
I'm slightly concerned about the lack of smp_mb__after_atomic()
between the TIF_NEED_RESCHED flag being cleared within schedule_preempt_disabled
and the TIF_POLLING_NRFLAG being set in the following loop. Indeed, clear_bit()
does not have a compiler barrier, nor processor-level memory barriers
(of course, the processor memory barrier should not really matter on
x86-64 due to lock prefix). Moreover, TIF_NEED_RESCHED is bit 3 on x86-64,
whereas TIF_POLLING_NRFLAG is bit 21. Those are in two different bytes of
the thread flags, and thus set/cleared as different addresses by clear_bit()
acting on an immediate "nr" argument.
If we have any state where TIF_POLLING_NRFLAG is set before TIF_NEED_RESCHED
is cleared within the idle thread, we could end up missing a needed resched IPI.
Another question: why are set_nr_if_polling and set_nr_and_not_polling two
different implementations ? Could they be combined ?
Thanks,
Mathieu
>
> Thanks,
>
> Mathieu
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 2:23 ` Mathieu Desnoyers
@ 2016-03-28 6:13 ` Peter Zijlstra
2016-03-28 13:50 ` Paul E. McKenney
2016-03-28 14:15 ` Mathieu Desnoyers
0 siblings, 2 replies; 79+ messages in thread
From: Peter Zijlstra @ 2016-03-28 6:13 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Paul E. McKenney, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Mon, Mar 28, 2016 at 02:23:45AM +0000, Mathieu Desnoyers wrote:
> >> But, you need hotplug for this to happen, right?
> >
> > My understanding is that this seems to be detection of failures to be
> > awakened for a long time on idle CPUs. It therefore seems to be more
> > idle-related than cpu hotplug-related. I'm not saying that there is
> > no issue with hotplug, just that the investigation so far seems to
> > target mostly idle systems, AFAIK without stressing hotplug.
Paul has stated that without hotplug he cannot trigger this.
> > set_nr_if_polling() returns true if the ti->flags read has the
> > _TIF_NEED_RESCHED bit set, which will skip the IPI.
POLLING_NR, as per your later comment
> > But it seems weird. The side that calls set_nr_if_polling()
> > does the following:
> > 1) llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)
> > 2) set_nr_if_polling(rq->idle)
> > 3) (don't do smp_send_reschedule(cpu) since set_nr_if_polling() returned
> > true)
> >
> > The idle loop does:
> > 1) __current_set_polling()
> > 2) __current_clr_polling()
> > 3) smp_mb__after_atomic()
> > 4) sched_ttwu_pending()
> > 5) schedule_preempt_disabled()
> > -> This will clear the TIF_NEED_RESCHED flag
> >
> > While the idle loop is in sched_ttwu_pending(), after
> > it has done the llist_del_all() (thus has grabbed all the
> > list entries), TIF_NEED_RESCHED is still set.
> > If both list_all and
llist_add() ?
> > set_nr_if_polling() are called right after the llist_del_all(), we
> > will end up in a situation where we have an entry in the list, but
> > there won't be any reschedule sent on the idle CPU until something
> > else awakens it. On a _very_ idle CPU, this could take some time.
Can't happen, as per clearing of POLLING_NR before doing llist_del_all()
and the latter being a full memory barrier.
> > set_nr_and_not_polling() don't seem to have the same issue, because
> > it does not return true if TIF_NEED_RESCHED is observed as being
> > already set: it really just depends on the state of the TIF_POLLING_NRFLAG
> > bit.
> >
> > Am I missing something important ?
>
> Well, it seems that the test for _TIF_POLLING_NRFLAG in set_nr_if_polling()
> just before the test for _TIF_NEED_RESCHED should take care of it: while in
> sched_ttwu_pending within the idle loop, the TIF_POLLING_NRFLAG should be
> cleared, thus causing set_nr_if_polling to return false.
Right, clue in the name: Set NEED_RESCHED _IF_ POLLING_NR (is set).
> I'm slightly concerned about the lack of smp_mb__after_atomic()
> between the TIF_NEED_RESCHED flag being cleared within schedule_preempt_disabled
> and the TIF_POLLING_NRFLAG being set in the following loop. Indeed, clear_bit()
> does not have a compiler barrier,
Urgh, it really should, as all atomic ops. set_bit() very much has a
memory clobber in, see below.
> nor processor-level memory barriers
> (of course, the processor memory barrier should not really matter on
> x86-64 due to lock prefix).
Right.
> Moreover, TIF_NEED_RESCHED is bit 3 on x86-64,
> whereas TIF_POLLING_NRFLAG is bit 21. Those are in two different bytes of
> the thread flags, and thus set/cleared as different addresses by clear_bit()
> acting on an immediate "nr" argument.
>
> If we have any state where TIF_POLLING_NRFLAG is set before TIF_NEED_RESCHED
> is cleared within the idle thread, we could end up missing a needed resched IPI.
Yes, that would be bad. No objection to adding smp_mb__before_atomic()
before the initial __current_set_polling(). Although that's not going to
make a difference for x86_64 as you already noted.
> Another question: why are set_nr_if_polling and set_nr_and_not_polling two
> different implementations ?
Because they're fundamentally two different things. The one
conditionally sets NEED_RESCHED, the other unconditionally sets it.
> Could they be combined ?
Can, yes, will not be pretty nor clear code though.
---
arch/x86/include/asm/bitops.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 7766d1cf096e..5345784d5e41 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
if (IS_IMMEDIATE(nr)) {
asm volatile(LOCK_PREFIX "andb %1,%0"
: CONST_MASK_ADDR(nr, addr)
- : "iq" ((u8)~CONST_MASK(nr)));
+ : "iq" ((u8)~CONST_MASK(nr))
+ : "memory");
} else {
asm volatile(LOCK_PREFIX "btr %1,%0"
: BITOP_ADDR(addr)
- : "Ir" (nr));
+ : "Ir" (nr)
+ : "memory");
}
}
^ permalink raw reply related [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 21:06 ` Paul E. McKenney
@ 2016-03-28 6:25 ` Peter Zijlstra
2016-03-28 13:08 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Peter Zijlstra @ 2016-03-28 6:25 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
> > But, you need hotplug for this to happen, right?
>
> I do, but Ross Green is seeing something that looks similar, and without
> CPU hotplug.
Yes, but that's two differences so far, you need hotplug and he's on ARM
(which doesn't have TIF_POLLING_NR).
So either we're all looking at the wrong thing or these really are two
different issues.
> > We should not be migrating towards, or waking on, CPUs no longer present
> > in cpu_active_map, and there is a rcu/sched_sync() after clearing that
> > bit. Furthermore, migration_call() does a sched_ttwu_pending() (waking
> > any remaining stragglers) before we migrate all runnable tasks off the
> > dying CPU.
>
> OK, so I should instrument migration_call() if I get the repro rate up?
Can do, maybe try the below first. (yes I know how long it all takes :/)
> > The other interesting case would be resched_cpu(), which uses
> > set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
> > atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
> > not set. If indeed not, it will send an IPI.
> >
> > This assumes the idle 'exit' path will do the same as the IPI does; and
> > if you look at cpu_idle_loop() it does indeed do both
> > preempt_fold_need_resched() and sched_ttwu_pending().
> >
> > Note that one cannot rely on irq_enter()/irq_exit() being called for the
> > scheduler IPI.
>
> OK, thank you for the info! Any specific debug actions?
Dunno, something like the below should bring visibility into the
(lockless) wake_list thingy.
So these trace_printk()s should happen between trace_sched_waking() and
trace_sched_wakeup() (I've not fully read the thread, but ISTR you had
some traces with these here thingies on).
---
arch/x86/include/asm/bitops.h | 6 ++++--
kernel/sched/core.c | 9 +++++++++
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 7766d1cf096e..5345784d5e41 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
if (IS_IMMEDIATE(nr)) {
asm volatile(LOCK_PREFIX "andb %1,%0"
: CONST_MASK_ADDR(nr, addr)
- : "iq" ((u8)~CONST_MASK(nr)));
+ : "iq" ((u8)~CONST_MASK(nr))
+ : "memory");
} else {
asm volatile(LOCK_PREFIX "btr %1,%0"
: BITOP_ADDR(addr)
- : "Ir" (nr));
+ : "Ir" (nr)
+ : "memory");
}
}
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 0b21e7a724e1..b446f73c530d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1669,6 +1669,7 @@ void sched_ttwu_pending(void)
while (llist) {
p = llist_entry(llist, struct task_struct, wake_entry);
llist = llist_next(llist);
+ trace_printk("waking %d\n", p->pid);
ttwu_do_activate(rq, p, 0);
}
@@ -1719,6 +1720,7 @@ static void ttwu_queue_remote(struct task_struct *p, int cpu)
struct rq *rq = cpu_rq(cpu);
if (llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)) {
+ trace_printk("queued %d for waking on %d\n", p->pid, cpu);
if (!set_nr_if_polling(rq->idle))
smp_send_reschedule(cpu);
else
@@ -5397,10 +5399,17 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
migrate_tasks(rq);
BUG_ON(rq->nr_running != 1); /* the migration thread */
raw_spin_unlock_irqrestore(&rq->lock, flags);
+
+ /* really bad m'kay */
+ WARN_ON(!llist_empty(&rq->wake_list));
+
break;
case CPU_DEAD:
calc_load_migrate(rq);
+
+ /* more bad */
+ WARN_ON(!llist_empty(&rq->wake_list));
break;
#endif
}
^ permalink raw reply related [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-27 21:09 ` Paul E. McKenney
@ 2016-03-28 6:28 ` Peter Zijlstra
2016-03-28 13:29 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Peter Zijlstra @ 2016-03-28 6:28 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, lkml, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, rostedt, David Howells, Eric Dumazet,
Darren Hart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar, Chatre, Reinette
On Sun, Mar 27, 2016 at 02:09:14PM -0700, Paul E. McKenney wrote:
> > Does that system have MONITOR/MWAIT errata?
>
> On the off-chance that this question was also directed at me,
Hehe, it wasn't, however, since we're here..
> here is
> what I am running on. I am running in a qemu/KVM virtual machine, in
> case that matters.
Have you actually tried on real proper hardware? Does it still reproduce
there?
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 6:25 ` Peter Zijlstra
@ 2016-03-28 13:08 ` Paul E. McKenney
2016-03-29 0:25 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-28 13:08 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
> On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
>
> > > But, you need hotplug for this to happen, right?
> >
> > I do, but Ross Green is seeing something that looks similar, and without
> > CPU hotplug.
>
> Yes, but that's two differences so far, you need hotplug and he's on ARM
> (which doesn't have TIF_POLLING_NR).
>
> So either we're all looking at the wrong thing or these really are two
> different issues.
Given that this failure has grown more probable over the past several
releases, it does seem quite likely that we have more than one bug.
Or maybe a few bugs and additional innocent-bystander commits that make
one or more of the bugs more probable.
> > > We should not be migrating towards, or waking on, CPUs no longer present
> > > in cpu_active_map, and there is a rcu/sched_sync() after clearing that
> > > bit. Furthermore, migration_call() does a sched_ttwu_pending() (waking
> > > any remaining stragglers) before we migrate all runnable tasks off the
> > > dying CPU.
> >
> > OK, so I should instrument migration_call() if I get the repro rate up?
>
> Can do, maybe try the below first. (yes I know how long it all takes :/)
OK, will run this today, then run calibration for last night's run this
evening.
Speaking of which, last night's run (disabling TIF_POLLING_NRFLAG)
consisted of 24 two-hour runs. Six of them had hard hangs, and another
had a hang that eventually unhung of its own accord. I believe that this
is significantly fewer failures than from a stock kernel, but I could
be wrong, and it will take some serious testing to give statistical
confidence for whatever conclusion is correct.
> > > The other interesting case would be resched_cpu(), which uses
> > > set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
> > > atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
> > > not set. If indeed not, it will send an IPI.
> > >
> > > This assumes the idle 'exit' path will do the same as the IPI does; and
> > > if you look at cpu_idle_loop() it does indeed do both
> > > preempt_fold_need_resched() and sched_ttwu_pending().
> > >
> > > Note that one cannot rely on irq_enter()/irq_exit() being called for the
> > > scheduler IPI.
> >
> > OK, thank you for the info! Any specific debug actions?
>
> Dunno, something like the below should bring visibility into the
> (lockless) wake_list thingy.
>
> So these trace_printk()s should happen between trace_sched_waking() and
> trace_sched_wakeup() (I've not fully read the thread, but ISTR you had
> some traces with these here thingies on).
>
> ---
> arch/x86/include/asm/bitops.h | 6 ++++--
> kernel/sched/core.c | 9 +++++++++
> 2 files changed, 13 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
> index 7766d1cf096e..5345784d5e41 100644
> --- a/arch/x86/include/asm/bitops.h
> +++ b/arch/x86/include/asm/bitops.h
> @@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
> if (IS_IMMEDIATE(nr)) {
> asm volatile(LOCK_PREFIX "andb %1,%0"
> : CONST_MASK_ADDR(nr, addr)
> - : "iq" ((u8)~CONST_MASK(nr)));
> + : "iq" ((u8)~CONST_MASK(nr))
> + : "memory");
> } else {
> asm volatile(LOCK_PREFIX "btr %1,%0"
> : BITOP_ADDR(addr)
> - : "Ir" (nr));
> + : "Ir" (nr)
> + : "memory");
> }
> }
Is the above addition of "memory" strictly for the debug below, or is
it also a potential fix?
Starting it up regardless, but figured I should ask!
Thanx, Paul
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index 0b21e7a724e1..b446f73c530d 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -1669,6 +1669,7 @@ void sched_ttwu_pending(void)
> while (llist) {
> p = llist_entry(llist, struct task_struct, wake_entry);
> llist = llist_next(llist);
> + trace_printk("waking %d\n", p->pid);
> ttwu_do_activate(rq, p, 0);
> }
>
> @@ -1719,6 +1720,7 @@ static void ttwu_queue_remote(struct task_struct *p, int cpu)
> struct rq *rq = cpu_rq(cpu);
>
> if (llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)) {
> + trace_printk("queued %d for waking on %d\n", p->pid, cpu);
> if (!set_nr_if_polling(rq->idle))
> smp_send_reschedule(cpu);
> else
> @@ -5397,10 +5399,17 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
> migrate_tasks(rq);
> BUG_ON(rq->nr_running != 1); /* the migration thread */
> raw_spin_unlock_irqrestore(&rq->lock, flags);
> +
> + /* really bad m'kay */
> + WARN_ON(!llist_empty(&rq->wake_list));
> +
> break;
>
> case CPU_DEAD:
> calc_load_migrate(rq);
> +
> + /* more bad */
> + WARN_ON(!llist_empty(&rq->wake_list));
> break;
> #endif
> }
>
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 6:28 ` Peter Zijlstra
@ 2016-03-28 13:29 ` Paul E. McKenney
2016-03-28 15:07 ` Mathieu Desnoyers
2016-03-30 12:58 ` Boqun Feng
0 siblings, 2 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-28 13:29 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Jacob Pan, Josh Triplett, Ross Green, Mathieu Desnoyers,
John Stultz, Thomas Gleixner, lkml, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, rostedt, David Howells, Eric Dumazet,
Darren Hart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar, Chatre, Reinette
On Mon, Mar 28, 2016 at 08:28:51AM +0200, Peter Zijlstra wrote:
> On Sun, Mar 27, 2016 at 02:09:14PM -0700, Paul E. McKenney wrote:
>
> > > Does that system have MONITOR/MWAIT errata?
> >
> > On the off-chance that this question was also directed at me,
>
> Hehe, it wasn't, however, since we're here..
>
> > here is
> > what I am running on. I am running in a qemu/KVM virtual machine, in
> > case that matters.
>
> Have you actually tried on real proper hardware? Does it still reproduce
> there?
Ross has, but I have not, given that I have a shared system on the one
hand and a single-socket (four core, eight hardware thread) laptop on
the other that has even longer reproduction times. The repeat-by is
as follows:
o Build a kernel with the following Kconfigs:
CONFIG_SMP=y
CONFIG_NR_CPUS=16
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
# This should result in CONFIG_PREEMPT_RCU=y
CONFIG_HZ_PERIODIC=y
CONFIG_NO_HZ_IDLE=n
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_TRACE=y
CONFIG_HOTPLUG_CPU=y
CONFIG_RCU_FANOUT=2
CONFIG_RCU_FANOUT_LEAF=2
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_RCU_BOOST=y
CONFIG_RCU_KTHREAD_PRIO=2
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_RCU_EXPERT=y
CONFIG_RCU_TORTURE_TEST=y
CONFIG_PRINTK_TIME=y
CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
If desired, you can instead build with CONFIG_RCU_TORTURE_TEST=m
and modprobe/insmod the module manually.
o Find a two-socket x86 system or larger, with at least 16 CPUs.
o Boot the kernel with the following kernel boot parameters:
rcutorture.onoff_interval=1 rcutorture.onoff_holdoff=30
The onoff_holdoff is only needed for CONFIG_RCU_TORTURE_TEST=y.
When manually setting up the module, you get the holdoff for
free, courtesy of human timescales.
In the absence of instrumentation, I get failures usually within a
couple of hours, though sometimes much longer. With instrumentation,
the sky appears to be the limit. :-/
Ross is running on bare metal with no CPU hotplug, so perhaps his setup
is of more immediate interest. He is seeing the same symptoms that I am,
namely a task being repeatedly awakened without actually coming out of
TASK_INTERRUPTIBLE state, let alone running. As you pointed out earlier,
he cannot be seeing the same bug that my crude patch suppresses, but
given that I still see a few failures with that crude patch, it is quite
possible that there is still a common bug.
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 6:13 ` Peter Zijlstra
@ 2016-03-28 13:50 ` Paul E. McKenney
2016-03-28 14:15 ` Mathieu Desnoyers
1 sibling, 0 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-28 13:50 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Mon, Mar 28, 2016 at 08:13:51AM +0200, Peter Zijlstra wrote:
> On Mon, Mar 28, 2016 at 02:23:45AM +0000, Mathieu Desnoyers wrote:
>
> > >> But, you need hotplug for this to happen, right?
> > >
> > > My understanding is that this seems to be detection of failures to be
> > > awakened for a long time on idle CPUs. It therefore seems to be more
> > > idle-related than cpu hotplug-related. I'm not saying that there is
> > > no issue with hotplug, just that the investigation so far seems to
> > > target mostly idle systems, AFAIK without stressing hotplug.
>
> Paul has stated that without hotplug he cannot trigger this.
Which means either that hotplug is absolutely necessary or that
hotplug increases the probability of failure. Ross's experience is
without hotplug on a mostly idle system, so I am currently betting on
"increases the probability". The set of bugs does seem to have gotten
worse somewhere between v4.1 and v4.2, but not sufficiently to allow
reasonble bisection (yes, I did try, several times).
> > > set_nr_if_polling() returns true if the ti->flags read has the
> > > _TIF_NEED_RESCHED bit set, which will skip the IPI.
>
> POLLING_NR, as per your later comment
>
> > > But it seems weird. The side that calls set_nr_if_polling()
> > > does the following:
> > > 1) llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)
> > > 2) set_nr_if_polling(rq->idle)
> > > 3) (don't do smp_send_reschedule(cpu) since set_nr_if_polling() returned
> > > true)
> > >
> > > The idle loop does:
> > > 1) __current_set_polling()
> > > 2) __current_clr_polling()
> > > 3) smp_mb__after_atomic()
> > > 4) sched_ttwu_pending()
> > > 5) schedule_preempt_disabled()
> > > -> This will clear the TIF_NEED_RESCHED flag
> > >
> > > While the idle loop is in sched_ttwu_pending(), after
> > > it has done the llist_del_all() (thus has grabbed all the
> > > list entries), TIF_NEED_RESCHED is still set.
>
> > > If both list_all and
>
> llist_add() ?
>
> > > set_nr_if_polling() are called right after the llist_del_all(), we
> > > will end up in a situation where we have an entry in the list, but
> > > there won't be any reschedule sent on the idle CPU until something
> > > else awakens it. On a _very_ idle CPU, this could take some time.
>
> Can't happen, as per clearing of POLLING_NR before doing llist_del_all()
> and the latter being a full memory barrier.
>
> > > set_nr_and_not_polling() don't seem to have the same issue, because
> > > it does not return true if TIF_NEED_RESCHED is observed as being
> > > already set: it really just depends on the state of the TIF_POLLING_NRFLAG
> > > bit.
> > >
> > > Am I missing something important ?
> >
> > Well, it seems that the test for _TIF_POLLING_NRFLAG in set_nr_if_polling()
> > just before the test for _TIF_NEED_RESCHED should take care of it: while in
> > sched_ttwu_pending within the idle loop, the TIF_POLLING_NRFLAG should be
> > cleared, thus causing set_nr_if_polling to return false.
>
> Right, clue in the name: Set NEED_RESCHED _IF_ POLLING_NR (is set).
>
> > I'm slightly concerned about the lack of smp_mb__after_atomic()
> > between the TIF_NEED_RESCHED flag being cleared within schedule_preempt_disabled
> > and the TIF_POLLING_NRFLAG being set in the following loop. Indeed, clear_bit()
> > does not have a compiler barrier,
>
> Urgh, it really should, as all atomic ops. set_bit() very much has a
> memory clobber in, see below.
And this is one of the changes in your patch that I am now testing, correct?
(Looks that way to me, but..)
Thanx, Paul
> > nor processor-level memory barriers
> > (of course, the processor memory barrier should not really matter on
> > x86-64 due to lock prefix).
>
> Right.
>
> > Moreover, TIF_NEED_RESCHED is bit 3 on x86-64,
> > whereas TIF_POLLING_NRFLAG is bit 21. Those are in two different bytes of
> > the thread flags, and thus set/cleared as different addresses by clear_bit()
> > acting on an immediate "nr" argument.
> >
> > If we have any state where TIF_POLLING_NRFLAG is set before TIF_NEED_RESCHED
> > is cleared within the idle thread, we could end up missing a needed resched IPI.
>
> Yes, that would be bad. No objection to adding smp_mb__before_atomic()
> before the initial __current_set_polling(). Although that's not going to
> make a difference for x86_64 as you already noted.
>
> > Another question: why are set_nr_if_polling and set_nr_and_not_polling two
> > different implementations ?
>
> Because they're fundamentally two different things. The one
> conditionally sets NEED_RESCHED, the other unconditionally sets it.
>
> > Could they be combined ?
>
> Can, yes, will not be pretty nor clear code though.
>
>
> ---
> arch/x86/include/asm/bitops.h | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
> index 7766d1cf096e..5345784d5e41 100644
> --- a/arch/x86/include/asm/bitops.h
> +++ b/arch/x86/include/asm/bitops.h
> @@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
> if (IS_IMMEDIATE(nr)) {
> asm volatile(LOCK_PREFIX "andb %1,%0"
> : CONST_MASK_ADDR(nr, addr)
> - : "iq" ((u8)~CONST_MASK(nr)));
> + : "iq" ((u8)~CONST_MASK(nr))
> + : "memory");
> } else {
> asm volatile(LOCK_PREFIX "btr %1,%0"
> : BITOP_ADDR(addr)
> - : "Ir" (nr));
> + : "Ir" (nr)
> + : "memory");
> }
> }
>
>
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 6:13 ` Peter Zijlstra
2016-03-28 13:50 ` Paul E. McKenney
@ 2016-03-28 14:15 ` Mathieu Desnoyers
1 sibling, 0 replies; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-03-28 14:15 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Paul E. McKenney, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
----- On Mar 28, 2016, at 2:13 AM, Peter Zijlstra peterz@infradead.org wrote:
> On Mon, Mar 28, 2016 at 02:23:45AM +0000, Mathieu Desnoyers wrote:
>
>> >> But, you need hotplug for this to happen, right?
>> >
>> > My understanding is that this seems to be detection of failures to be
>> > awakened for a long time on idle CPUs. It therefore seems to be more
>> > idle-related than cpu hotplug-related. I'm not saying that there is
>> > no issue with hotplug, just that the investigation so far seems to
>> > target mostly idle systems, AFAIK without stressing hotplug.
>
> Paul has stated that without hotplug he cannot trigger this.
>
>> > set_nr_if_polling() returns true if the ti->flags read has the
>> > _TIF_NEED_RESCHED bit set, which will skip the IPI.
>
> POLLING_NR, as per your later comment
>
>> > But it seems weird. The side that calls set_nr_if_polling()
>> > does the following:
>> > 1) llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)
>> > 2) set_nr_if_polling(rq->idle)
>> > 3) (don't do smp_send_reschedule(cpu) since set_nr_if_polling() returned
>> > true)
>> >
>> > The idle loop does:
>> > 1) __current_set_polling()
>> > 2) __current_clr_polling()
>> > 3) smp_mb__after_atomic()
>> > 4) sched_ttwu_pending()
>> > 5) schedule_preempt_disabled()
>> > -> This will clear the TIF_NEED_RESCHED flag
>> >
>> > While the idle loop is in sched_ttwu_pending(), after
>> > it has done the llist_del_all() (thus has grabbed all the
>> > list entries), TIF_NEED_RESCHED is still set.
>
>> > If both list_all and
>
> llist_add() ?
Yes, indeed.
>
>> > set_nr_if_polling() are called right after the llist_del_all(), we
>> > will end up in a situation where we have an entry in the list, but
>> > there won't be any reschedule sent on the idle CPU until something
>> > else awakens it. On a _very_ idle CPU, this could take some time.
>
> Can't happen, as per clearing of POLLING_NR before doing llist_del_all()
> and the latter being a full memory barrier.
>
>> > set_nr_and_not_polling() don't seem to have the same issue, because
>> > it does not return true if TIF_NEED_RESCHED is observed as being
>> > already set: it really just depends on the state of the TIF_POLLING_NRFLAG
>> > bit.
>> >
>> > Am I missing something important ?
>>
>> Well, it seems that the test for _TIF_POLLING_NRFLAG in set_nr_if_polling()
>> just before the test for _TIF_NEED_RESCHED should take care of it: while in
>> sched_ttwu_pending within the idle loop, the TIF_POLLING_NRFLAG should be
>> cleared, thus causing set_nr_if_polling to return false.
>
> Right, clue in the name: Set NEED_RESCHED _IF_ POLLING_NR (is set).
>
>> I'm slightly concerned about the lack of smp_mb__after_atomic()
>> between the TIF_NEED_RESCHED flag being cleared within schedule_preempt_disabled
>> and the TIF_POLLING_NRFLAG being set in the following loop. Indeed, clear_bit()
>> does not have a compiler barrier,
>
> Urgh, it really should, as all atomic ops. set_bit() very much has a
> memory clobber in, see below.
Yes, I'd be more comfortable with the memory clobber in the clear_bit
too, but theoretically it *should* not matter, because we have a clobber
in set_bit, and clear_bit has a +m memory operand.
>
>> nor processor-level memory barriers
>> (of course, the processor memory barrier should not really matter on
>> x86-64 due to lock prefix).
>
> Right.
>
>> Moreover, TIF_NEED_RESCHED is bit 3 on x86-64,
>> whereas TIF_POLLING_NRFLAG is bit 21. Those are in two different bytes of
>> the thread flags, and thus set/cleared as different addresses by clear_bit()
>> acting on an immediate "nr" argument.
>>
>> If we have any state where TIF_POLLING_NRFLAG is set before TIF_NEED_RESCHED
>> is cleared within the idle thread, we could end up missing a needed resched IPI.
>
> Yes, that would be bad. No objection to adding smp_mb__before_atomic()
> before the initial __current_set_polling(). Although that's not going to
> make a difference for x86_64 as you already noted.
Yep.
>
>> Another question: why are set_nr_if_polling and set_nr_and_not_polling two
>> different implementations ?
>
> Because they're fundamentally two different things. The one
> conditionally sets NEED_RESCHED, the other unconditionally sets it.
Got it, makes sense.
Thanks!
Mathieu
>
>> Could they be combined ?
>
> Can, yes, will not be pretty nor clear code though.
>
>
> ---
> arch/x86/include/asm/bitops.h | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
> index 7766d1cf096e..5345784d5e41 100644
> --- a/arch/x86/include/asm/bitops.h
> +++ b/arch/x86/include/asm/bitops.h
> @@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
> if (IS_IMMEDIATE(nr)) {
> asm volatile(LOCK_PREFIX "andb %1,%0"
> : CONST_MASK_ADDR(nr, addr)
> - : "iq" ((u8)~CONST_MASK(nr)));
> + : "iq" ((u8)~CONST_MASK(nr))
> + : "memory");
> } else {
> asm volatile(LOCK_PREFIX "btr %1,%0"
> : BITOP_ADDR(addr)
> - : "Ir" (nr));
> + : "Ir" (nr)
> + : "memory");
> }
> }
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 13:29 ` Paul E. McKenney
@ 2016-03-28 15:07 ` Mathieu Desnoyers
2016-03-28 15:56 ` Paul E. McKenney
2016-03-30 12:58 ` Boqun Feng
1 sibling, 1 reply; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-03-28 15:07 UTC (permalink / raw)
To: Paul E. McKenney, Thomas Gleixner
Cc: Peter Zijlstra, Jacob Pan, Josh Triplett, Ross Green,
John Stultz, lkml, Ingo Molnar, Lai Jiangshan, dipankar,
Andrew Morton, rostedt, David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar,
Chatre, Reinette
----- On Mar 28, 2016, at 9:29 AM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
> On Mon, Mar 28, 2016 at 08:28:51AM +0200, Peter Zijlstra wrote:
>> On Sun, Mar 27, 2016 at 02:09:14PM -0700, Paul E. McKenney wrote:
>>
>> > > Does that system have MONITOR/MWAIT errata?
>> >
>> > On the off-chance that this question was also directed at me,
>>
>> Hehe, it wasn't, however, since we're here..
>>
>> > here is
>> > what I am running on. I am running in a qemu/KVM virtual machine, in
>> > case that matters.
>>
>> Have you actually tried on real proper hardware? Does it still reproduce
>> there?
>
> Ross has, but I have not, given that I have a shared system on the one
> hand and a single-socket (four core, eight hardware thread) laptop on
> the other that has even longer reproduction times. The repeat-by is
> as follows:
>
> o Build a kernel with the following Kconfigs:
>
> CONFIG_SMP=y
> CONFIG_NR_CPUS=16
> CONFIG_PREEMPT_NONE=n
> CONFIG_PREEMPT_VOLUNTARY=n
> CONFIG_PREEMPT=y
> # This should result in CONFIG_PREEMPT_RCU=y
> CONFIG_HZ_PERIODIC=y
> CONFIG_NO_HZ_IDLE=n
> CONFIG_NO_HZ_FULL=n
> CONFIG_RCU_TRACE=y
> CONFIG_HOTPLUG_CPU=y
> CONFIG_RCU_FANOUT=2
> CONFIG_RCU_FANOUT_LEAF=2
> CONFIG_RCU_NOCB_CPU=n
> CONFIG_DEBUG_LOCK_ALLOC=n
> CONFIG_RCU_BOOST=y
> CONFIG_RCU_KTHREAD_PRIO=2
> CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
> CONFIG_RCU_EXPERT=y
> CONFIG_RCU_TORTURE_TEST=y
> CONFIG_PRINTK_TIME=y
> CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
>
> If desired, you can instead build with CONFIG_RCU_TORTURE_TEST=m
> and modprobe/insmod the module manually.
>
> o Find a two-socket x86 system or larger, with at least 16 CPUs.
>
> o Boot the kernel with the following kernel boot parameters:
>
> rcutorture.onoff_interval=1 rcutorture.onoff_holdoff=30
>
> The onoff_holdoff is only needed for CONFIG_RCU_TORTURE_TEST=y.
> When manually setting up the module, you get the holdoff for
> free, courtesy of human timescales.
>
> In the absence of instrumentation, I get failures usually within a
> couple of hours, though sometimes much longer. With instrumentation,
> the sky appears to be the limit. :-/
>
> Ross is running on bare metal with no CPU hotplug, so perhaps his setup
> is of more immediate interest. He is seeing the same symptoms that I am,
> namely a task being repeatedly awakened without actually coming out of
> TASK_INTERRUPTIBLE state, let alone running. As you pointed out earlier,
> he cannot be seeing the same bug that my crude patch suppresses, but
> given that I still see a few failures with that crude patch, it is quite
> possible that there is still a common bug.
With respect to bare metal vs KVM guest, I've reported an issue with
inaccurate detection of TSC as being an unreliable time source on a
KVM guest. The basic setup is to overcommit the CPU use across the
entire host, thus leading to preemption of the guest. The guest TSC
watchdog then falsely assume that TSC is unreliable, because it gets
preempted for a long time (e.g. 0.5 second) between reading the HPET
and the TSC.
Ref. http://lkml.iu.edu/hypermail/linux/kernel/1509.1/00379.html
I'm wondering if what Paul is observing in the KVM setup might be
caused by long preemption by the host. One way to stress test this
is to run parallel kernel builds on the host (or in another guest)
while the guest is running, thus over-committing the CPU use.
Thoughts ?
Thanks,
Mathieu
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 15:07 ` Mathieu Desnoyers
@ 2016-03-28 15:56 ` Paul E. McKenney
2016-03-28 16:12 ` Mathieu Desnoyers
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-28 15:56 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Thomas Gleixner, Peter Zijlstra, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, lkml, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, rostedt, David Howells, Eric Dumazet,
Darren Hart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar, Chatre, Reinette
On Mon, Mar 28, 2016 at 03:07:36PM +0000, Mathieu Desnoyers wrote:
> ----- On Mar 28, 2016, at 9:29 AM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
>
> > On Mon, Mar 28, 2016 at 08:28:51AM +0200, Peter Zijlstra wrote:
> >> On Sun, Mar 27, 2016 at 02:09:14PM -0700, Paul E. McKenney wrote:
> >>
> >> > > Does that system have MONITOR/MWAIT errata?
> >> >
> >> > On the off-chance that this question was also directed at me,
> >>
> >> Hehe, it wasn't, however, since we're here..
> >>
> >> > here is
> >> > what I am running on. I am running in a qemu/KVM virtual machine, in
> >> > case that matters.
> >>
> >> Have you actually tried on real proper hardware? Does it still reproduce
> >> there?
> >
> > Ross has, but I have not, given that I have a shared system on the one
> > hand and a single-socket (four core, eight hardware thread) laptop on
> > the other that has even longer reproduction times. The repeat-by is
> > as follows:
> >
> > o Build a kernel with the following Kconfigs:
> >
> > CONFIG_SMP=y
> > CONFIG_NR_CPUS=16
> > CONFIG_PREEMPT_NONE=n
> > CONFIG_PREEMPT_VOLUNTARY=n
> > CONFIG_PREEMPT=y
> > # This should result in CONFIG_PREEMPT_RCU=y
> > CONFIG_HZ_PERIODIC=y
> > CONFIG_NO_HZ_IDLE=n
> > CONFIG_NO_HZ_FULL=n
> > CONFIG_RCU_TRACE=y
> > CONFIG_HOTPLUG_CPU=y
> > CONFIG_RCU_FANOUT=2
> > CONFIG_RCU_FANOUT_LEAF=2
> > CONFIG_RCU_NOCB_CPU=n
> > CONFIG_DEBUG_LOCK_ALLOC=n
> > CONFIG_RCU_BOOST=y
> > CONFIG_RCU_KTHREAD_PRIO=2
> > CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
> > CONFIG_RCU_EXPERT=y
> > CONFIG_RCU_TORTURE_TEST=y
> > CONFIG_PRINTK_TIME=y
> > CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> > CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> > CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
> >
> > If desired, you can instead build with CONFIG_RCU_TORTURE_TEST=m
> > and modprobe/insmod the module manually.
> >
> > o Find a two-socket x86 system or larger, with at least 16 CPUs.
> >
> > o Boot the kernel with the following kernel boot parameters:
> >
> > rcutorture.onoff_interval=1 rcutorture.onoff_holdoff=30
> >
> > The onoff_holdoff is only needed for CONFIG_RCU_TORTURE_TEST=y.
> > When manually setting up the module, you get the holdoff for
> > free, courtesy of human timescales.
> >
> > In the absence of instrumentation, I get failures usually within a
> > couple of hours, though sometimes much longer. With instrumentation,
> > the sky appears to be the limit. :-/
> >
> > Ross is running on bare metal with no CPU hotplug, so perhaps his setup
> > is of more immediate interest. He is seeing the same symptoms that I am,
> > namely a task being repeatedly awakened without actually coming out of
> > TASK_INTERRUPTIBLE state, let alone running. As you pointed out earlier,
> > he cannot be seeing the same bug that my crude patch suppresses, but
> > given that I still see a few failures with that crude patch, it is quite
> > possible that there is still a common bug.
>
> With respect to bare metal vs KVM guest, I've reported an issue with
> inaccurate detection of TSC as being an unreliable time source on a
> KVM guest. The basic setup is to overcommit the CPU use across the
> entire host, thus leading to preemption of the guest. The guest TSC
> watchdog then falsely assume that TSC is unreliable, because it gets
> preempted for a long time (e.g. 0.5 second) between reading the HPET
> and the TSC.
>
> Ref. http://lkml.iu.edu/hypermail/linux/kernel/1509.1/00379.html
>
> I'm wondering if what Paul is observing in the KVM setup might be
> caused by long preemption by the host. One way to stress test this
> is to run parallel kernel builds on the host (or in another guest)
> while the guest is running, thus over-committing the CPU use.
>
> Thoughts ?
If I run NO_HZ_FULL, I do get warnings about unstable timesources.
And certainly guest VCPUs can be preempted. However, if they were
preempted for the lengths of time I am seeing, I should also see
softlockup warnings on the host, which I do not see.
That said, perhaps I should cobble together something to force short
repeated preemptions at the host level. Maybe that would get the
reproduction rate sufficiently high to enable less-dainty debugging.
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 15:56 ` Paul E. McKenney
@ 2016-03-28 16:12 ` Mathieu Desnoyers
2016-03-28 16:29 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Mathieu Desnoyers @ 2016-03-28 16:12 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Thomas Gleixner, Peter Zijlstra, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, lkml, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, rostedt, David Howells, Eric Dumazet,
Darren Hart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar, Chatre, Reinette
----- On Mar 28, 2016, at 11:56 AM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
> On Mon, Mar 28, 2016 at 03:07:36PM +0000, Mathieu Desnoyers wrote:
>> ----- On Mar 28, 2016, at 9:29 AM, Paul E. McKenney paulmck@linux.vnet.ibm.com
>> wrote:
>>
>> > On Mon, Mar 28, 2016 at 08:28:51AM +0200, Peter Zijlstra wrote:
>> >> On Sun, Mar 27, 2016 at 02:09:14PM -0700, Paul E. McKenney wrote:
>> >>
>> >> > > Does that system have MONITOR/MWAIT errata?
>> >> >
>> >> > On the off-chance that this question was also directed at me,
>> >>
>> >> Hehe, it wasn't, however, since we're here..
>> >>
>> >> > here is
>> >> > what I am running on. I am running in a qemu/KVM virtual machine, in
>> >> > case that matters.
>> >>
>> >> Have you actually tried on real proper hardware? Does it still reproduce
>> >> there?
>> >
>> > Ross has, but I have not, given that I have a shared system on the one
>> > hand and a single-socket (four core, eight hardware thread) laptop on
>> > the other that has even longer reproduction times. The repeat-by is
>> > as follows:
>> >
>> > o Build a kernel with the following Kconfigs:
>> >
>> > CONFIG_SMP=y
>> > CONFIG_NR_CPUS=16
>> > CONFIG_PREEMPT_NONE=n
>> > CONFIG_PREEMPT_VOLUNTARY=n
>> > CONFIG_PREEMPT=y
>> > # This should result in CONFIG_PREEMPT_RCU=y
>> > CONFIG_HZ_PERIODIC=y
>> > CONFIG_NO_HZ_IDLE=n
>> > CONFIG_NO_HZ_FULL=n
>> > CONFIG_RCU_TRACE=y
>> > CONFIG_HOTPLUG_CPU=y
>> > CONFIG_RCU_FANOUT=2
>> > CONFIG_RCU_FANOUT_LEAF=2
>> > CONFIG_RCU_NOCB_CPU=n
>> > CONFIG_DEBUG_LOCK_ALLOC=n
>> > CONFIG_RCU_BOOST=y
>> > CONFIG_RCU_KTHREAD_PRIO=2
>> > CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
>> > CONFIG_RCU_EXPERT=y
>> > CONFIG_RCU_TORTURE_TEST=y
>> > CONFIG_PRINTK_TIME=y
>> > CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
>> > CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
>> > CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
>> >
>> > If desired, you can instead build with CONFIG_RCU_TORTURE_TEST=m
>> > and modprobe/insmod the module manually.
>> >
>> > o Find a two-socket x86 system or larger, with at least 16 CPUs.
>> >
>> > o Boot the kernel with the following kernel boot parameters:
>> >
>> > rcutorture.onoff_interval=1 rcutorture.onoff_holdoff=30
>> >
>> > The onoff_holdoff is only needed for CONFIG_RCU_TORTURE_TEST=y.
>> > When manually setting up the module, you get the holdoff for
>> > free, courtesy of human timescales.
>> >
>> > In the absence of instrumentation, I get failures usually within a
>> > couple of hours, though sometimes much longer. With instrumentation,
>> > the sky appears to be the limit. :-/
>> >
>> > Ross is running on bare metal with no CPU hotplug, so perhaps his setup
>> > is of more immediate interest. He is seeing the same symptoms that I am,
>> > namely a task being repeatedly awakened without actually coming out of
>> > TASK_INTERRUPTIBLE state, let alone running. As you pointed out earlier,
>> > he cannot be seeing the same bug that my crude patch suppresses, but
>> > given that I still see a few failures with that crude patch, it is quite
>> > possible that there is still a common bug.
>>
>> With respect to bare metal vs KVM guest, I've reported an issue with
>> inaccurate detection of TSC as being an unreliable time source on a
>> KVM guest. The basic setup is to overcommit the CPU use across the
>> entire host, thus leading to preemption of the guest. The guest TSC
>> watchdog then falsely assume that TSC is unreliable, because it gets
>> preempted for a long time (e.g. 0.5 second) between reading the HPET
>> and the TSC.
>>
>> Ref. http://lkml.iu.edu/hypermail/linux/kernel/1509.1/00379.html
>>
>> I'm wondering if what Paul is observing in the KVM setup might be
>> caused by long preemption by the host. One way to stress test this
>> is to run parallel kernel builds on the host (or in another guest)
>> while the guest is running, thus over-committing the CPU use.
>>
>> Thoughts ?
>
> If I run NO_HZ_FULL, I do get warnings about unstable timesources.
>
> And certainly guest VCPUs can be preempted. However, if they were
> preempted for the lengths of time I am seeing, I should also see
> softlockup warnings on the host, which I do not see.
Why would you see softlockup warning on the host ?
I expect the priority at which the kvm vcpu runs is much lower than
the priority of the rcu worker threads on the host. Therefore, you
might very well have long preemption delays for kvm vpus while the
rcu worker threads run fine on the host kernel because they have
a higher priority.
Am I missing something ?
Thanks,
Mathieu
>
> That said, perhaps I should cobble together something to force short
> repeated preemptions at the host level. Maybe that would get the
> reproduction rate sufficiently high to enable less-dainty debugging.
>
> Thanx, Paul
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 16:12 ` Mathieu Desnoyers
@ 2016-03-28 16:29 ` Paul E. McKenney
0 siblings, 0 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-28 16:29 UTC (permalink / raw)
To: Mathieu Desnoyers
Cc: Thomas Gleixner, Peter Zijlstra, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, lkml, Ingo Molnar, Lai Jiangshan,
dipankar, Andrew Morton, rostedt, David Howells, Eric Dumazet,
Darren Hart, Frédéric Weisbecker, Oleg Nesterov,
pranith kumar, Chatre, Reinette
On Mon, Mar 28, 2016 at 04:12:19PM +0000, Mathieu Desnoyers wrote:
> ----- On Mar 28, 2016, at 11:56 AM, Paul E. McKenney paulmck@linux.vnet.ibm.com wrote:
>
> > On Mon, Mar 28, 2016 at 03:07:36PM +0000, Mathieu Desnoyers wrote:
> >> ----- On Mar 28, 2016, at 9:29 AM, Paul E. McKenney paulmck@linux.vnet.ibm.com
> >> wrote:
> >>
> >> > On Mon, Mar 28, 2016 at 08:28:51AM +0200, Peter Zijlstra wrote:
> >> >> On Sun, Mar 27, 2016 at 02:09:14PM -0700, Paul E. McKenney wrote:
> >> >>
> >> >> > > Does that system have MONITOR/MWAIT errata?
> >> >> >
> >> >> > On the off-chance that this question was also directed at me,
> >> >>
> >> >> Hehe, it wasn't, however, since we're here..
> >> >>
> >> >> > here is
> >> >> > what I am running on. I am running in a qemu/KVM virtual machine, in
> >> >> > case that matters.
> >> >>
> >> >> Have you actually tried on real proper hardware? Does it still reproduce
> >> >> there?
> >> >
> >> > Ross has, but I have not, given that I have a shared system on the one
> >> > hand and a single-socket (four core, eight hardware thread) laptop on
> >> > the other that has even longer reproduction times. The repeat-by is
> >> > as follows:
> >> >
> >> > o Build a kernel with the following Kconfigs:
> >> >
> >> > CONFIG_SMP=y
> >> > CONFIG_NR_CPUS=16
> >> > CONFIG_PREEMPT_NONE=n
> >> > CONFIG_PREEMPT_VOLUNTARY=n
> >> > CONFIG_PREEMPT=y
> >> > # This should result in CONFIG_PREEMPT_RCU=y
> >> > CONFIG_HZ_PERIODIC=y
> >> > CONFIG_NO_HZ_IDLE=n
> >> > CONFIG_NO_HZ_FULL=n
> >> > CONFIG_RCU_TRACE=y
> >> > CONFIG_HOTPLUG_CPU=y
> >> > CONFIG_RCU_FANOUT=2
> >> > CONFIG_RCU_FANOUT_LEAF=2
> >> > CONFIG_RCU_NOCB_CPU=n
> >> > CONFIG_DEBUG_LOCK_ALLOC=n
> >> > CONFIG_RCU_BOOST=y
> >> > CONFIG_RCU_KTHREAD_PRIO=2
> >> > CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
> >> > CONFIG_RCU_EXPERT=y
> >> > CONFIG_RCU_TORTURE_TEST=y
> >> > CONFIG_PRINTK_TIME=y
> >> > CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> >> > CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> >> > CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
> >> >
> >> > If desired, you can instead build with CONFIG_RCU_TORTURE_TEST=m
> >> > and modprobe/insmod the module manually.
> >> >
> >> > o Find a two-socket x86 system or larger, with at least 16 CPUs.
> >> >
> >> > o Boot the kernel with the following kernel boot parameters:
> >> >
> >> > rcutorture.onoff_interval=1 rcutorture.onoff_holdoff=30
> >> >
> >> > The onoff_holdoff is only needed for CONFIG_RCU_TORTURE_TEST=y.
> >> > When manually setting up the module, you get the holdoff for
> >> > free, courtesy of human timescales.
> >> >
> >> > In the absence of instrumentation, I get failures usually within a
> >> > couple of hours, though sometimes much longer. With instrumentation,
> >> > the sky appears to be the limit. :-/
> >> >
> >> > Ross is running on bare metal with no CPU hotplug, so perhaps his setup
> >> > is of more immediate interest. He is seeing the same symptoms that I am,
> >> > namely a task being repeatedly awakened without actually coming out of
> >> > TASK_INTERRUPTIBLE state, let alone running. As you pointed out earlier,
> >> > he cannot be seeing the same bug that my crude patch suppresses, but
> >> > given that I still see a few failures with that crude patch, it is quite
> >> > possible that there is still a common bug.
> >>
> >> With respect to bare metal vs KVM guest, I've reported an issue with
> >> inaccurate detection of TSC as being an unreliable time source on a
> >> KVM guest. The basic setup is to overcommit the CPU use across the
> >> entire host, thus leading to preemption of the guest. The guest TSC
> >> watchdog then falsely assume that TSC is unreliable, because it gets
> >> preempted for a long time (e.g. 0.5 second) between reading the HPET
> >> and the TSC.
> >>
> >> Ref. http://lkml.iu.edu/hypermail/linux/kernel/1509.1/00379.html
> >>
> >> I'm wondering if what Paul is observing in the KVM setup might be
> >> caused by long preemption by the host. One way to stress test this
> >> is to run parallel kernel builds on the host (or in another guest)
> >> while the guest is running, thus over-committing the CPU use.
> >>
> >> Thoughts ?
> >
> > If I run NO_HZ_FULL, I do get warnings about unstable timesources.
> >
> > And certainly guest VCPUs can be preempted. However, if they were
> > preempted for the lengths of time I am seeing, I should also see
> > softlockup warnings on the host, which I do not see.
>
> Why would you see softlockup warning on the host ?
>
> I expect the priority at which the kvm vcpu runs is much lower than
> the priority of the rcu worker threads on the host. Therefore, you
> might very well have long preemption delays for kvm vpus while the
> rcu worker threads run fine on the host kernel because they have
> a higher priority.
>
> Am I missing something ?
Right, host/guest confusion on my part. I should expect softlockups
on the -guest- because rcutorture runs almost entirely in kernel
mode. I don't see them there, either.
Another reason I do not expect preemption is the problem is because
I don't see it with waketorture, which has a large number of tasks
periodically waking up.
Yet another reason is that I can get things moving again by doing periodic
wakeups from the scheduling-clock interrupt. (Why those wakeups make
things go but those from the timers don't is a mystery to me!) Please see
commit 56ef96ac25c3 (DIAGS: Another horrible exploratory hack) for one
piece of this. This would presumably have no effect on preemption at
the host level.
Thanx, Paul
> Thanks,
>
> Mathieu
>
> >
> > That said, perhaps I should cobble together something to force short
> > repeated preemptions at the host level. Maybe that would get the
> > reproduction rate sufficiently high to enable less-dainty debugging.
> >
> > Thanx, Paul
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
>
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 13:08 ` Paul E. McKenney
@ 2016-03-29 0:25 ` Paul E. McKenney
2016-03-29 0:28 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-29 0:25 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Mon, Mar 28, 2016 at 06:08:41AM -0700, Paul E. McKenney wrote:
> On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
> > On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
[ . . . ]
> > > OK, so I should instrument migration_call() if I get the repro rate up?
> >
> > Can do, maybe try the below first. (yes I know how long it all takes :/)
>
> OK, will run this today, then run calibration for last night's run this
> evening.
And there was one failure out of ten runs. If last night's failure rate
was typical (7 of 24), then I believe we can be about 87% confident that
this change helped. That isn't all that confident, but...
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
So what to run tonight?
The most sane approach would be to run stock in order to get a baseline
failure rate. It is tempting to run more of Peter's patch, but part of
the problem is that we don't know the current baseline.
So baseline it is...
Thanx, Paul
> Speaking of which, last night's run (disabling TIF_POLLING_NRFLAG)
> consisted of 24 two-hour runs. Six of them had hard hangs, and another
> had a hang that eventually unhung of its own accord. I believe that this
> is significantly fewer failures than from a stock kernel, but I could
> be wrong, and it will take some serious testing to give statistical
> confidence for whatever conclusion is correct.
>
> > > > The other interesting case would be resched_cpu(), which uses
> > > > set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
> > > > atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
> > > > not set. If indeed not, it will send an IPI.
> > > >
> > > > This assumes the idle 'exit' path will do the same as the IPI does; and
> > > > if you look at cpu_idle_loop() it does indeed do both
> > > > preempt_fold_need_resched() and sched_ttwu_pending().
> > > >
> > > > Note that one cannot rely on irq_enter()/irq_exit() being called for the
> > > > scheduler IPI.
> > >
> > > OK, thank you for the info! Any specific debug actions?
> >
> > Dunno, something like the below should bring visibility into the
> > (lockless) wake_list thingy.
> >
> > So these trace_printk()s should happen between trace_sched_waking() and
> > trace_sched_wakeup() (I've not fully read the thread, but ISTR you had
> > some traces with these here thingies on).
> >
> > ---
> > arch/x86/include/asm/bitops.h | 6 ++++--
> > kernel/sched/core.c | 9 +++++++++
> > 2 files changed, 13 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
> > index 7766d1cf096e..5345784d5e41 100644
> > --- a/arch/x86/include/asm/bitops.h
> > +++ b/arch/x86/include/asm/bitops.h
> > @@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
> > if (IS_IMMEDIATE(nr)) {
> > asm volatile(LOCK_PREFIX "andb %1,%0"
> > : CONST_MASK_ADDR(nr, addr)
> > - : "iq" ((u8)~CONST_MASK(nr)));
> > + : "iq" ((u8)~CONST_MASK(nr))
> > + : "memory");
> > } else {
> > asm volatile(LOCK_PREFIX "btr %1,%0"
> > : BITOP_ADDR(addr)
> > - : "Ir" (nr));
> > + : "Ir" (nr)
> > + : "memory");
> > }
> > }
>
> Is the above addition of "memory" strictly for the debug below, or is
> it also a potential fix?
>
> Starting it up regardless, but figured I should ask!
>
> Thanx, Paul
>
> > diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> > index 0b21e7a724e1..b446f73c530d 100644
> > --- a/kernel/sched/core.c
> > +++ b/kernel/sched/core.c
> > @@ -1669,6 +1669,7 @@ void sched_ttwu_pending(void)
> > while (llist) {
> > p = llist_entry(llist, struct task_struct, wake_entry);
> > llist = llist_next(llist);
> > + trace_printk("waking %d\n", p->pid);
> > ttwu_do_activate(rq, p, 0);
> > }
> >
> > @@ -1719,6 +1720,7 @@ static void ttwu_queue_remote(struct task_struct *p, int cpu)
> > struct rq *rq = cpu_rq(cpu);
> >
> > if (llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)) {
> > + trace_printk("queued %d for waking on %d\n", p->pid, cpu);
> > if (!set_nr_if_polling(rq->idle))
> > smp_send_reschedule(cpu);
> > else
> > @@ -5397,10 +5399,17 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
> > migrate_tasks(rq);
> > BUG_ON(rq->nr_running != 1); /* the migration thread */
> > raw_spin_unlock_irqrestore(&rq->lock, flags);
> > +
> > + /* really bad m'kay */
> > + WARN_ON(!llist_empty(&rq->wake_list));
> > +
> > break;
> >
> > case CPU_DEAD:
> > calc_load_migrate(rq);
> > +
> > + /* more bad */
> > + WARN_ON(!llist_empty(&rq->wake_list));
> > break;
> > #endif
> > }
> >
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-29 0:25 ` Paul E. McKenney
@ 2016-03-29 0:28 ` Paul E. McKenney
2016-03-29 13:49 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-29 0:28 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Mon, Mar 28, 2016 at 05:25:18PM -0700, Paul E. McKenney wrote:
> On Mon, Mar 28, 2016 at 06:08:41AM -0700, Paul E. McKenney wrote:
> > On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
> > > On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
>
> [ . . . ]
>
> > > > OK, so I should instrument migration_call() if I get the repro rate up?
> > >
> > > Can do, maybe try the below first. (yes I know how long it all takes :/)
> >
> > OK, will run this today, then run calibration for last night's run this
> > evening.
>
> And there was one failure out of ten runs. If last night's failure rate
> was typical (7 of 24), then I believe we can be about 87% confident that
> this change helped. That isn't all that confident, but...
And, as Murphy would have it, the instrumentation didn't trigger. I just
got the usual stall-warning messages with a starving RCU grace-period
kthread.
Thanx, Paul
> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
>
> So what to run tonight?
>
> The most sane approach would be to run stock in order to get a baseline
> failure rate. It is tempting to run more of Peter's patch, but part of
> the problem is that we don't know the current baseline.
>
> So baseline it is...
>
> Thanx, Paul
>
> > Speaking of which, last night's run (disabling TIF_POLLING_NRFLAG)
> > consisted of 24 two-hour runs. Six of them had hard hangs, and another
> > had a hang that eventually unhung of its own accord. I believe that this
> > is significantly fewer failures than from a stock kernel, but I could
> > be wrong, and it will take some serious testing to give statistical
> > confidence for whatever conclusion is correct.
> >
> > > > > The other interesting case would be resched_cpu(), which uses
> > > > > set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
> > > > > atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
> > > > > not set. If indeed not, it will send an IPI.
> > > > >
> > > > > This assumes the idle 'exit' path will do the same as the IPI does; and
> > > > > if you look at cpu_idle_loop() it does indeed do both
> > > > > preempt_fold_need_resched() and sched_ttwu_pending().
> > > > >
> > > > > Note that one cannot rely on irq_enter()/irq_exit() being called for the
> > > > > scheduler IPI.
> > > >
> > > > OK, thank you for the info! Any specific debug actions?
> > >
> > > Dunno, something like the below should bring visibility into the
> > > (lockless) wake_list thingy.
> > >
> > > So these trace_printk()s should happen between trace_sched_waking() and
> > > trace_sched_wakeup() (I've not fully read the thread, but ISTR you had
> > > some traces with these here thingies on).
> > >
> > > ---
> > > arch/x86/include/asm/bitops.h | 6 ++++--
> > > kernel/sched/core.c | 9 +++++++++
> > > 2 files changed, 13 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
> > > index 7766d1cf096e..5345784d5e41 100644
> > > --- a/arch/x86/include/asm/bitops.h
> > > +++ b/arch/x86/include/asm/bitops.h
> > > @@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
> > > if (IS_IMMEDIATE(nr)) {
> > > asm volatile(LOCK_PREFIX "andb %1,%0"
> > > : CONST_MASK_ADDR(nr, addr)
> > > - : "iq" ((u8)~CONST_MASK(nr)));
> > > + : "iq" ((u8)~CONST_MASK(nr))
> > > + : "memory");
> > > } else {
> > > asm volatile(LOCK_PREFIX "btr %1,%0"
> > > : BITOP_ADDR(addr)
> > > - : "Ir" (nr));
> > > + : "Ir" (nr)
> > > + : "memory");
> > > }
> > > }
> >
> > Is the above addition of "memory" strictly for the debug below, or is
> > it also a potential fix?
> >
> > Starting it up regardless, but figured I should ask!
> >
> > Thanx, Paul
> >
> > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> > > index 0b21e7a724e1..b446f73c530d 100644
> > > --- a/kernel/sched/core.c
> > > +++ b/kernel/sched/core.c
> > > @@ -1669,6 +1669,7 @@ void sched_ttwu_pending(void)
> > > while (llist) {
> > > p = llist_entry(llist, struct task_struct, wake_entry);
> > > llist = llist_next(llist);
> > > + trace_printk("waking %d\n", p->pid);
> > > ttwu_do_activate(rq, p, 0);
> > > }
> > >
> > > @@ -1719,6 +1720,7 @@ static void ttwu_queue_remote(struct task_struct *p, int cpu)
> > > struct rq *rq = cpu_rq(cpu);
> > >
> > > if (llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)) {
> > > + trace_printk("queued %d for waking on %d\n", p->pid, cpu);
> > > if (!set_nr_if_polling(rq->idle))
> > > smp_send_reschedule(cpu);
> > > else
> > > @@ -5397,10 +5399,17 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
> > > migrate_tasks(rq);
> > > BUG_ON(rq->nr_running != 1); /* the migration thread */
> > > raw_spin_unlock_irqrestore(&rq->lock, flags);
> > > +
> > > + /* really bad m'kay */
> > > + WARN_ON(!llist_empty(&rq->wake_list));
> > > +
> > > break;
> > >
> > > case CPU_DEAD:
> > > calc_load_migrate(rq);
> > > +
> > > + /* more bad */
> > > + WARN_ON(!llist_empty(&rq->wake_list));
> > > break;
> > > #endif
> > > }
> > >
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-29 0:28 ` Paul E. McKenney
@ 2016-03-29 13:49 ` Paul E. McKenney
2016-03-30 14:55 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-29 13:49 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Mon, Mar 28, 2016 at 05:28:14PM -0700, Paul E. McKenney wrote:
> On Mon, Mar 28, 2016 at 05:25:18PM -0700, Paul E. McKenney wrote:
> > On Mon, Mar 28, 2016 at 06:08:41AM -0700, Paul E. McKenney wrote:
> > > On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
> > > > On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
> >
> > [ . . . ]
> >
> > > > > OK, so I should instrument migration_call() if I get the repro rate up?
> > > >
> > > > Can do, maybe try the below first. (yes I know how long it all takes :/)
> > >
> > > OK, will run this today, then run calibration for last night's run this
> > > evening.
And of 18 two-hour runs, there were five failures, or about 28%.
That said, I don't have even one significant digit on the failure rate,
as 5 of 18 is within the 95% confidence limits for a failure probability
as low as 12.5% and as high as 47%.
However, the previous night's runs gave 7 failures in 24 two-hour runs,
for about a 29% failure rate. There is thus a good probability that my
disabling of TIF_POLLING_NRFLAG had no effect whatsoever, tantalizing
though that possibility might have been.
(FWIW, I use the pdf_binomial() and quantile_binomial() functions in
maxima for computing this stuff. Similar stuff is no doubt available
in other math/stat packages as well.)
So we have bugs, but not much idea where they are. Situation normal.
Other thoughts?
Thanx, Paul
> > And there was one failure out of ten runs. If last night's failure rate
> > was typical (7 of 24), then I believe we can be about 87% confident that
> > this change helped. That isn't all that confident, but...
>
> And, as Murphy would have it, the instrumentation didn't trigger. I just
> got the usual stall-warning messages with a starving RCU grace-period
> kthread.
>
> Thanx, Paul
>
> > Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> >
> > So what to run tonight?
> >
> > The most sane approach would be to run stock in order to get a baseline
> > failure rate. It is tempting to run more of Peter's patch, but part of
> > the problem is that we don't know the current baseline.
> >
> > So baseline it is...
> >
> > Thanx, Paul
> >
> > > Speaking of which, last night's run (disabling TIF_POLLING_NRFLAG)
> > > consisted of 24 two-hour runs. Six of them had hard hangs, and another
> > > had a hang that eventually unhung of its own accord. I believe that this
> > > is significantly fewer failures than from a stock kernel, but I could
> > > be wrong, and it will take some serious testing to give statistical
> > > confidence for whatever conclusion is correct.
> > >
> > > > > > The other interesting case would be resched_cpu(), which uses
> > > > > > set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
> > > > > > atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
> > > > > > not set. If indeed not, it will send an IPI.
> > > > > >
> > > > > > This assumes the idle 'exit' path will do the same as the IPI does; and
> > > > > > if you look at cpu_idle_loop() it does indeed do both
> > > > > > preempt_fold_need_resched() and sched_ttwu_pending().
> > > > > >
> > > > > > Note that one cannot rely on irq_enter()/irq_exit() being called for the
> > > > > > scheduler IPI.
> > > > >
> > > > > OK, thank you for the info! Any specific debug actions?
> > > >
> > > > Dunno, something like the below should bring visibility into the
> > > > (lockless) wake_list thingy.
> > > >
> > > > So these trace_printk()s should happen between trace_sched_waking() and
> > > > trace_sched_wakeup() (I've not fully read the thread, but ISTR you had
> > > > some traces with these here thingies on).
> > > >
> > > > ---
> > > > arch/x86/include/asm/bitops.h | 6 ++++--
> > > > kernel/sched/core.c | 9 +++++++++
> > > > 2 files changed, 13 insertions(+), 2 deletions(-)
> > > >
> > > > diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
> > > > index 7766d1cf096e..5345784d5e41 100644
> > > > --- a/arch/x86/include/asm/bitops.h
> > > > +++ b/arch/x86/include/asm/bitops.h
> > > > @@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
> > > > if (IS_IMMEDIATE(nr)) {
> > > > asm volatile(LOCK_PREFIX "andb %1,%0"
> > > > : CONST_MASK_ADDR(nr, addr)
> > > > - : "iq" ((u8)~CONST_MASK(nr)));
> > > > + : "iq" ((u8)~CONST_MASK(nr))
> > > > + : "memory");
> > > > } else {
> > > > asm volatile(LOCK_PREFIX "btr %1,%0"
> > > > : BITOP_ADDR(addr)
> > > > - : "Ir" (nr));
> > > > + : "Ir" (nr)
> > > > + : "memory");
> > > > }
> > > > }
> > >
> > > Is the above addition of "memory" strictly for the debug below, or is
> > > it also a potential fix?
> > >
> > > Starting it up regardless, but figured I should ask!
> > >
> > > Thanx, Paul
> > >
> > > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> > > > index 0b21e7a724e1..b446f73c530d 100644
> > > > --- a/kernel/sched/core.c
> > > > +++ b/kernel/sched/core.c
> > > > @@ -1669,6 +1669,7 @@ void sched_ttwu_pending(void)
> > > > while (llist) {
> > > > p = llist_entry(llist, struct task_struct, wake_entry);
> > > > llist = llist_next(llist);
> > > > + trace_printk("waking %d\n", p->pid);
> > > > ttwu_do_activate(rq, p, 0);
> > > > }
> > > >
> > > > @@ -1719,6 +1720,7 @@ static void ttwu_queue_remote(struct task_struct *p, int cpu)
> > > > struct rq *rq = cpu_rq(cpu);
> > > >
> > > > if (llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)) {
> > > > + trace_printk("queued %d for waking on %d\n", p->pid, cpu);
> > > > if (!set_nr_if_polling(rq->idle))
> > > > smp_send_reschedule(cpu);
> > > > else
> > > > @@ -5397,10 +5399,17 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
> > > > migrate_tasks(rq);
> > > > BUG_ON(rq->nr_running != 1); /* the migration thread */
> > > > raw_spin_unlock_irqrestore(&rq->lock, flags);
> > > > +
> > > > + /* really bad m'kay */
> > > > + WARN_ON(!llist_empty(&rq->wake_list));
> > > > +
> > > > break;
> > > >
> > > > case CPU_DEAD:
> > > > calc_load_migrate(rq);
> > > > +
> > > > + /* more bad */
> > > > + WARN_ON(!llist_empty(&rq->wake_list));
> > > > break;
> > > > #endif
> > > > }
> > > >
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-28 13:29 ` Paul E. McKenney
2016-03-28 15:07 ` Mathieu Desnoyers
@ 2016-03-30 12:58 ` Boqun Feng
2016-03-30 13:30 ` Paul E. McKenney
1 sibling, 1 reply; 79+ messages in thread
From: Boqun Feng @ 2016-03-30 12:58 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Peter Zijlstra, Jacob Pan, Josh Triplett, Ross Green,
Mathieu Desnoyers, John Stultz, Thomas Gleixner, lkml,
Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton, rostedt,
David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar,
Chatre, Reinette
[-- Attachment #1.1: Type: text/plain, Size: 7047 bytes --]
Hi Paul,
On Mon, Mar 28, 2016 at 06:29:32AM -0700, Paul E. McKenney wrote:
> On Mon, Mar 28, 2016 at 08:28:51AM +0200, Peter Zijlstra wrote:
> > On Sun, Mar 27, 2016 at 02:09:14PM -0700, Paul E. McKenney wrote:
> >
> > > > Does that system have MONITOR/MWAIT errata?
> > >
> > > On the off-chance that this question was also directed at me,
> >
> > Hehe, it wasn't, however, since we're here..
> >
> > > here is
> > > what I am running on. I am running in a qemu/KVM virtual machine, in
> > > case that matters.
> >
> > Have you actually tried on real proper hardware? Does it still reproduce
> > there?
>
> Ross has, but I have not, given that I have a shared system on the one
> hand and a single-socket (four core, eight hardware thread) laptop on
> the other that has even longer reproduction times. The repeat-by is
> as follows:
>
> o Build a kernel with the following Kconfigs:
>
> CONFIG_SMP=y
> CONFIG_NR_CPUS=16
> CONFIG_PREEMPT_NONE=n
> CONFIG_PREEMPT_VOLUNTARY=n
> CONFIG_PREEMPT=y
> # This should result in CONFIG_PREEMPT_RCU=y
> CONFIG_HZ_PERIODIC=y
> CONFIG_NO_HZ_IDLE=n
> CONFIG_NO_HZ_FULL=n
> CONFIG_RCU_TRACE=y
> CONFIG_HOTPLUG_CPU=y
> CONFIG_RCU_FANOUT=2
> CONFIG_RCU_FANOUT_LEAF=2
> CONFIG_RCU_NOCB_CPU=n
> CONFIG_DEBUG_LOCK_ALLOC=n
> CONFIG_RCU_BOOST=y
> CONFIG_RCU_KTHREAD_PRIO=2
> CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
> CONFIG_RCU_EXPERT=y
> CONFIG_RCU_TORTURE_TEST=y
> CONFIG_PRINTK_TIME=y
> CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
>
> If desired, you can instead build with CONFIG_RCU_TORTURE_TEST=m
> and modprobe/insmod the module manually.
>
> o Find a two-socket x86 system or larger, with at least 16 CPUs.
>
> o Boot the kernel with the following kernel boot parameters:
>
> rcutorture.onoff_interval=1 rcutorture.onoff_holdoff=30
>
> The onoff_holdoff is only needed for CONFIG_RCU_TORTURE_TEST=y.
> When manually setting up the module, you get the holdoff for
> free, courtesy of human timescales.
>
I ran several tests similar to this setup in a guest, the guest was
running in a 12-core Xeon X5690 host with kernel 4.4.5. The guest was
given 16 VCPUs and 2G memory.
Rather than RCU stall warnings, I was able to see a bug like this nearly
*everytime*:
[ 308.291635] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 308.292063] IP: [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 308.292063] PGD 0
[ 308.292063] Oops: 0002 [#1] PREEMPT SMP
[ 308.292063] Modules linked in:
[ 308.292063] CPU: 11 PID: 798 Comm: torture_onoff Not tainted 4.5.0-rc1+ #14
[ 308.292063] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 308.292063] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
[ 308.292063] RIP: 0010:[<ffffffff810b9452>] [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 308.292063] RSP: 0018:ffff88007c6f7c98 EFLAGS: 00010086
[ 308.292063] RAX: dead000000000200 RBX: ffff88007fb6cc00 RCX: ffff88007fa2cc00
[ 308.292063] RDX: 0000000000000000 RSI: ffff88007fa2d6d0 RDI: ffff88007fb6cc00
[ 308.292063] RBP: ffff88007c6f7cc0 R08: 0000000000000000 R09: ffffffff81e4d360
[ 308.292063] R10: ffffea0001f2daa0 R11: 0000000000000000 R12: ffff88007fa2d6d0
[ 308.292063] R13: ffff88007fb6cc00 R14: 000000000000000b R15: ffff88007fa2c420
[ 308.292063] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 308.292063] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 308.292063] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 308.292063] Stack:
[ 308.292063] ffff88007fb6cc00 ffff88007fa2d6d8 ffff88007fa2dad0 ffff88007fa2d8d0
[ 308.292063] ffff88007fa2d4d8 ffff88007c6f7d08 ffffffff810b95c4 ffff88007fa2cc00
[ 308.292063] ffff88007fa2d648 00000000fffffff0 ffffffff81e4e0c0 0000000000000007
[ 308.292063] Call Trace:
[ 308.292063] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 308.292063] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 308.292063] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 308.292063] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 308.292063] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 308.292063] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 308.292063] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 308.292063] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 308.292063] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 308.292063] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 308.292063] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 308.292063] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 308.292063] Code: 56 41 55 41 54 53 48 8b 06 44 8b 77 40 48 85 c0 74 53 49 89 fd 49 89 f4 4d 8b 3c 24 66 66 66 66 90 49 8b 07 49 8b 57 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 00 00 00 00 ad de 4c 89
[ 308.292063] RIP [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 308.292063] RSP <ffff88007c6f7c98>
[ 308.292063] CR2: 0000000000000000
[ 308.292063] ---[ end trace 29cb5d70ad875872 ]---
I'm not sure whether this is relevant, maybe this was caused by my
setup? But I attach two kernel logs and my config in case this could
help us solve the problem.
Another interesting I observed was that the time stamps of printk went
back in a while in some run, please note the log named "dmesg.1" in the
attachments.
A quick analysis of this bug is the null dereference happened at:
migrate_timer_list()
detach_timer();
__list_del();
WRITE_ONCE(*pprev, next); <- pprev is NULL
This seems highly unlikely, but as I said, I hit this almost every time
after a few minutes of starting rcutoture.
Any idea about whether this could be related to the RCU stall problem,
or this is another bug, or this actually happend by design for some
reasons?
Regards,
Boqun
> In the absence of instrumentation, I get failures usually within a
> couple of hours, though sometimes much longer. With instrumentation,
> the sky appears to be the limit. :-/
>
> Ross is running on bare metal with no CPU hotplug, so perhaps his setup
> is of more immediate interest. He is seeing the same symptoms that I am,
> namely a task being repeatedly awakened without actually coming out of
> TASK_INTERRUPTIBLE state, let alone running. As you pointed out earlier,
> he cannot be seeing the same bug that my crude patch suppresses, but
> given that I still see a few failures with that crude patch, it is quite
> possible that there is still a common bug.
>
> Thanx, Paul
>
[-- Attachment #1.2: dmesg.1 --]
[-- Type: text/plain, Size: 248072 bytes --]
[ 0.000000] Linux version 4.5.0-rc1+ (root@insomnia) (gcc version 5.3.0 (GCC) ) #14 SMP PREEMPT Wed Mar 30 20:01:04 CST 2016
[ 0.000000] Command line: noapic selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
[ 0.000000] x86/fpu: Legacy x87 FPU detected.
[ 0.000000] x86/fpu: Using 'lazy' FPU context switches.
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdefff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007ffdf000-0x000000007fffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 2.8 present.
[ 0.000000] e820: last_pfn = 0x7ffdf max_arch_pfn = 0x400000000
[ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
[ 0.000000] found SMP MP-table at [mem 0x000f6a50-0x000f6a5f] mapped at [ffff8800000f6a50]
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] Using GB pages for direct mapping
[ 0.000000] RAMDISK: [mem 0x7fcd4000-0x7ffcffff]
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x00000000000F6A00 000014 (v00 BOCHS )
[ 0.000000] ACPI: RSDT 0x000000007FFE1580 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACP 0x000000007FFE061A 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
[ 0.000000] ACPI: DSDT 0x000000007FFDFA80 000B9A (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACS 0x000000007FFDFA40 000040
[ 0.000000] ACPI: SSDT 0x000000007FFE068E 000DCA (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: APIC 0x000000007FFE1458 0000F0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
[ 0.000000] ACPI: HPET 0x000000007FFE1548 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007ffdefff]
[ 0.000000] NODE_DATA(0) allocated [mem 0x7ffdb000-0x7ffdefff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.000000] DMA32 [mem 0x0000000001000000-0x000000007ffdefff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.000000] node 0: [mem 0x0000000000100000-0x000000007ffdefff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000007ffdefff]
[ 0.000000] ACPI: PM-Timer IO Port: 0x608
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.000000] ACPI: Skipping IOAPIC probe due to 'noapic' option.
[ 0.000000] Using ACPI for processor (LAPIC) configuration information
[ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.000000] Intel MultiProcessor Specification v1.4
[ 0.000000] MPTABLE: OEM ID: BOCHSCPU
[ 0.000000] MPTABLE: Product ID: 0.1
[ 0.000000] MPTABLE: APIC at: 0xFEE00000
[ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.000000] Processors: 16
[ 0.000000] smpboot: Allowing 16 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 0.000000] e820: [mem 0x80000000-0xfeffbfff] available for PCI devices
[ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
[ 0.000000] setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:16 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 32 pages/cpu @ffff88007fa00000 s92008 r8192 d30872 u131072
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 515944
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: noapic selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Memory: 2040780K/2096628K available (8931K kernel code, 1258K rwdata, 3700K rodata, 1092K init, 984K bss, 55848K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=16, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] RCU debugfs-based tracing is enabled.
[ 0.000000] CONFIG_RCU_FANOUT set to non-default value of 2
[ 0.000000] RCU torture testing starts during boot.
[ 0.000000] Four(or more)-level hierarchy is enabled.
[ 0.000000] Build-time adjustment of leaf fanout to 2.
[ 0.000000] RCU kthread priority: 2.
[ 0.000000] NR_IRQS:4352 nr_irqs:552 16
[ 0.000000] Console: colour *CGA 80x25
[ 0.000000] console [ttyS0] enabled
[ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
[ 0.000000] tsc: Fast TSC calibration using PIT
[ 0.000000] tsc: Detected 3466.555 MHz processor
[ 0.002013] Calibrating delay loop (skipped), value calculated using timer frequency.. 6933.11 BogoMIPS (lpj=3466555)
[ 0.003221] pid_max: default: 32768 minimum: 301
[ 0.004006] ACPI: Core revision 20160108
[ 0.005400] ACPI: 2 ACPI AML tables successfully acquired and loaded
[ 0.005895]
[ 0.006006] ACPI: setting ELCR to 0200 (from 0c00)
[ 0.006390] Security Framework initialized
[ 0.006710] SELinux: Disabled at boot.
[ 0.007098] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.008111] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.008795] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.009005] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.010313] mce: CPU supports 10 MCE banks
[ 0.010663] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.011003] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 0.012726] Freeing SMP alternatives memory: 32K (ffffffff8204d000 - ffffffff82055000)
[ 0.013357] Switched APIC routing to physical flat.
[ 0.014080] smpboot: CPU0: Intel(R) Xeon(R) CPU X5690 @ 3.47GHz (family: 0x6, model: 0x2c, stepping: 0x2)
[ 0.014920] Performance Events: 16-deep LBR, Westmere events, Intel PMU driver.
[ 0.015429] perf_event_intel: CPUID marked event: 'bus cycles' unavailable
[ 0.015949] ... version: 2
[ 0.016003] ... bit width: 48
[ 0.016329] ... generic registers: 4
[ 0.016636] ... value mask: 0000ffffffffffff
[ 0.017003] ... max period: 000000007fffffff
[ 0.017404] ... fixed-purpose events: 3
[ 0.017710] ... event mask: 000000070000000f
[ 0.027039] x86: Booting SMP configuration:
[ 0.027433] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15
[ 0.985023] x86: Booted up 1 node, 16 CPUs
[ 0.985362] smpboot: Total of 16 processors activated (111447.03 BogoMIPS)
[ 0.987547] devtmpfs: initialized
[ 0.988368] kworker/u32:0 (98) used greatest stack depth: 13928 bytes left
[ 0.988536] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[ 0.988993] RTC time: 12:03:37, date: 03/30/16
[ 0.989101] NET: Registered protocol family 16
[ 0.989570] kworker/u32:1 (100) used greatest stack depth: 13736 bytes left
[ 0.996022] cpuidle: using governor menu
[ 0.996672] ACPI: bus type PCI registered
[ 0.997125] PCI: Using configuration type 1 for base access
[ 1.010381] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 1.011926] ACPI: Added _OSI(Module Device)
[ 1.012004] ACPI: Added _OSI(Processor Device)
[ 1.012349] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 1.012717] ACPI: Added _OSI(Processor Aggregator Device)
[ 1.014251] ACPI: Interpreter enabled
[ 1.014628] ACPI: (supports S0 S3 S4 S5)
[ 1.014997] ACPI: Using PIC for interrupt routing
[ 1.015037] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 1.019866] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 1.020013] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
[ 1.020677] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
[ 1.021011] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
[ 1.022058] PCI host bridge to bus 0000:00
[ 1.022466] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
[ 1.023011] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
[ 1.023551] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[ 1.024004] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff window]
[ 1.024578] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 1.028247] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
[ 1.028778] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
[ 1.029004] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
[ 1.029537] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
[ 1.030369] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI
[ 1.030936] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB
[ 1.037175] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[ 1.037744] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
[ 1.038196] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[ 1.038745] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
[ 1.039172] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
[ 1.040561] ACPI: Enabled 16 GPEs in block 00 to 0F
[ 1.041109] vgaarb: loaded
[ 1.041419] SCSI subsystem initialized
[ 1.041953] ACPI: bus type USB registered
[ 1.042040] usbcore: registered new interface driver usbfs
[ 1.042487] usbcore: registered new interface driver hub
[ 1.043100] usbcore: registered new device driver usb
[ 1.043539] pps_core: LinuxPPS API ver. 1 registered
[ 1.043979] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 1.044019] PTP clock support registered
[ 1.044684] Advanced Linux Sound Architecture Driver Initialized.
[ 1.045053] PCI: Using ACPI for IRQ routing
[ 1.045729] NetLabel: Initializing
[ 1.046004] NetLabel: domain hash size = 128
[ 1.046365] NetLabel: protocols = UNLABELED CIPSOv4
[ 1.046767] NetLabel: unlabeled traffic allowed by default
[ 1.047180] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[ 1.047609] hpet0: 3 comparators, 64-bit 100.000000 MHz counter
[ 1.052714] clocksource: Switched to clocksource hpet
[ 1.059250] VFS: Disk quotas dquot_6.6.0
[ 1.059578] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 1.060306] pnp: PnP ACPI init
[ 1.060970] pnp: PnP ACPI: found 5 devices
[ 1.069312] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[ 1.070069] NET: Registered protocol family 2
[ 1.070632] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[ 1.071401] TCP bind hash table entries: 16384 (order: 7, 524288 bytes)
[ 1.072064] TCP: Hash tables configured (established 16384 bind 16384)
[ 1.072688] UDP hash table entries: 1024 (order: 4, 98304 bytes)
[ 1.073276] UDP-Lite hash table entries: 1024 (order: 4, 98304 bytes)
[ 1.073827] NET: Registered protocol family 1
[ 1.074495] RPC: Registered named UNIX socket transport module.
[ 1.074955] RPC: Registered udp transport module.
[ 1.075464] RPC: Registered tcp transport module.
[ 1.075826] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.076439] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[ 1.076891] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[ 1.077443] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[ 1.077963] Unpacking initramfs...
[ 1.120173] Freeing initrd memory: 3056K (ffff88007fcd4000 - ffff88007ffd0000)
[ 1.122503] Scanning for low memory corruption every 60 seconds
[ 1.123167] rcu-torture:--- Start of test: nreaders=15 nfakewriters=4 stat_interval=60 verbose=1 test_no_idle_hz=1 shuffle_interval=3 stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 fqs_stutter=3 test_boost=1/0 test_boost_interval=7 test_boost_duration=4 shutdown_secs=0 stall_cpu=0 stall_cpu_holdoff=10 n_barrier_cbs=0 onoff_interval=1 onoff_holdoff=0
[ 1.125747] rcu-torture: Creating rcu_torture_writer task
[ 1.126429] rcu-torture: Creating rcu_torture_fakewriter task
[ 1.126429] rcu-torture: rcu_torture_writer task started
[ 1.126430] rcu-torture: Grace periods expedited from boot/sysfs for rcu,
[ 1.126430] rcu-torture: Testing of dynamic grace-period expediting diabled.
[ 1.128644] rcu-torture: Creating rcu_torture_fakewriter task
[ 1.128642] rcu-torture: rcu_torture_fakewriter task started
[ 1.129727] rcu-torture: Creating rcu_torture_fakewriter task
[ 1.129733] rcu-torture: rcu_torture_fakewriter task started
[ 1.130898] rcu-torture: Creating rcu_torture_fakewriter task
[ 1.130906] rcu-torture: rcu_torture_fakewriter task started
[ 1.132691] rcu-torture: Creating rcu_torture_reader task
[ 1.132694] rcu-torture: rcu_torture_fakewriter task started
[ 1.133744] rcu-torture: Creating rcu_torture_reader task
[ 1.133750] rcu-torture: rcu_torture_reader task started
[ 1.135313] rcu-torture: Creating rcu_torture_reader task
[ 1.135317] rcu-torture: rcu_torture_reader task started
[ 1.136682] rcu-torture: Creating rcu_torture_reader task
[ 1.136686] rcu-torture: rcu_torture_reader task started
[ 1.138108] rcu-torture: Creating rcu_torture_reader task
[ 1.138809] rcu-torture: Creating rcu_torture_reader task
[ 1.138818] rcu-torture: rcu_torture_reader task started
[ 1.140081] rcu-torture: rcu_torture_reader task started
[ 1.140856] rcu-torture: Creating rcu_torture_reader task
[ 1.140866] rcu-torture: rcu_torture_reader task started
[ 1.142268] rcu-torture: Creating rcu_torture_reader task
[ 1.142271] rcu-torture: rcu_torture_reader task started
[ 1.143582] rcu-torture: Creating rcu_torture_reader task
[ 1.143575] rcu-torture: rcu_torture_reader task started
[ 1.144936] rcu-torture: Creating rcu_torture_reader task
[ 1.144938] rcu-torture: rcu_torture_reader task started
[ 1.147747] rcu-torture: Creating rcu_torture_reader task
[ 1.148083] rcu-torture: rcu_torture_reader task started
[ 1.150115] rcu-torture: Creating rcu_torture_reader task
[ 1.150770] rcu-torture: Creating rcu_torture_reader task
[ 1.150778] rcu-torture: rcu_torture_reader task started
[ 1.151081] rcu-torture: rcu_torture_reader task started
[ 1.152751] rcu-torture: Creating rcu_torture_reader task
[ 1.152757] rcu-torture: rcu_torture_reader task started
[ 1.154181] rcu-torture: Creating rcu_torture_reader task
[ 1.154185] rcu-torture: rcu_torture_reader task started
[ 1.155491] rcu-torture: Creating rcu_torture_stats task
[ 1.156175] rcu-torture: rcu_torture_reader task started
[ 1.158111] rcu-torture: Creating torture_shuffle task
[ 1.158225] rcu-torture: rcu_torture_stats task started
[ 1.160088] rcu-torture: Creating torture_stutter task
[ 1.162072] rcu-torture: torture_shuffle task started
[ 1.162089] rcu-torture: Creating torture_onoff task
[ 1.162096] rcu-torture: torture_stutter task started
[ 1.163132] rcu-torture: Creating rcu_torture_cbflood task
[ 1.163136] rcu-torture: torture_onoff task started
[ 1.163137] rcu-torture:torture_onoff task: offlining 1
[ 1.165109] rcu-torture: Creating rcu_torture_cbflood task
[ 1.165188] rcu-torture: rcu_torture_cbflood task started
[ 1.166119] rcu-torture: Creating rcu_torture_cbflood task
[ 1.166175] rcu-torture: rcu_torture_cbflood task started
[ 1.167091] rcu-torture: Creating rcu_torture_cbflood task
[ 1.167186] rcu-torture: rcu_torture_cbflood task started
[ 1.168161] rcu-torture: rcu_torture_cbflood task started
[ 1.198566] Cannot set affinity for irq 0
[ 1.201317] rcu-torture:torture_onoff task: offlined 1
[ 1.202330] futex hash table entries: 4096 (order: 6, 262144 bytes)
[ 1.203196] audit: initializing netlink subsys (disabled)
[ 1.203818] audit: type=2000 audit(1459339417.203:1): initialized
[ 1.214213] NFS: Registering the id_resolver key type
[ 1.214798] Key type id_resolver registered
[ 1.216354] Key type id_legacy registered
[ 1.244465] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[ 1.245389] io scheduler noop registered
[ 1.245828] io scheduler deadline registered
[ 1.246386] io scheduler cfq registered (default)
[ 1.246974] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 1.247793] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[ 1.248696] ACPI: Power Button [PWRF]
[ 1.250818] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 1.298067] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 1.301459] Non-volatile memory driver v1.3
[ 1.301993] Linux agpgart interface v0.103
[ 1.302664] [drm] Initialized drm 1.1.0 20060810
[ 1.333318] loop: module loaded
[ 1.338108] scsi host0: ata_piix
[ 1.344082] scsi host1: ata_piix
[ 1.344504] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc040 irq 14
[ 1.345328] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc048 irq 15
[ 1.346267] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
[ 1.346946] e100: Copyright(c) 1999-2006 Intel Corporation
[ 1.347667] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[ 1.348576] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 1.401454] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 10
[ 1.837131] e1000 0000:00:02.0 eth0: (PCI:33MHz:32-bit) 52:54:00:12:34:56
[ 1.837856] e1000 0000:00:02.0 eth0: Intel(R) PRO/1000 Network Connection
[ 1.839514] sky2: driver version 1.30
[ 1.842083] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.842792] ehci-pci: EHCI PCI platform driver
[ 1.843372] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.844095] ohci-pci: OHCI PCI platform driver
[ 1.844586] uhci_hcd: USB Universal Host Controller Interface driver
[ 1.848330] usbcore: registered new interface driver usblp
[ 1.848944] usbcore: registered new interface driver usb-storage
[ 1.850748] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
[ 1.853219] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 1.853811] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 1.854564] mousedev: PS/2 mouse device common for all mice
[ 1.855778] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
[ 1.856946] rtc_cmos 00:00: RTC can wake from S4
[ 1.857843] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0
[ 1.860852] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram, hpet irqs
[ 1.861917] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 1.863983] hidraw: raw HID events driver (C) Jiri Kosina
[ 1.864831] usbcore: registered new interface driver usbhid
[ 1.866528] usbhid: USB HID core driver
[ 1.868362] Netfilter messages via NETLINK v0.30.
[ 1.868937] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 1.869776] ctnetlink v0.93: registering with nfnetlink.
[ 1.938103] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 1.954088] Initializing XFRM netlink socket
[ 1.954745] NET: Registered protocol family 10
[ 1.959227] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 2.045095] sit: IPv6 over IPv4 tunneling driver
[ 2.045761] NET: Registered protocol family 17
[ 2.046381] Key type dns_resolver registered
[ 2.048272] microcode: CPU0 sig=0x206c2, pf=0x1, revision=0x1
[ 2.054101] microcode: CPU2 sig=0x206c2, pf=0x1, revision=0x1
[ 2.054727] microcode: CPU3 sig=0x206c2, pf=0x1, revision=0x1
[ 2.055398] microcode: CPU4 sig=0x206c2, pf=0x1, revision=0x1
[ 2.057091] microcode: CPU5 sig=0x206c2, pf=0x1, revision=0x1
[ 2.058077] microcode: CPU6 sig=0x206c2, pf=0x1, revision=0x1
[ 2.059488] microcode: CPU7 sig=0x206c2, pf=0x1, revision=0x1
[ 2.060165] microcode: CPU8 sig=0x206c2, pf=0x1, revision=0x1
[ 2.060792] microcode: CPU9 sig=0x206c2, pf=0x1, revision=0x1
[ 2.062457] microcode: CPU10 sig=0x206c2, pf=0x1, revision=0x1
[ 2.063193] microcode: CPU11 sig=0x206c2, pf=0x1, revision=0x1
[ 2.063807] microcode: CPU12 sig=0x206c2, pf=0x1, revision=0x1
[ 2.065476] microcode: CPU13 sig=0x206c2, pf=0x1, revision=0x1
[ 2.066140] microcode: CPU14 sig=0x206c2, pf=0x1, revision=0x1
[ 2.066776] microcode: CPU15 sig=0x206c2, pf=0x1, revision=0x1
[ 2.069136] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[ 2.073334] registered taskstats version 1
[ 2.120085] tsc: Refined TSC clocksource calibration: 3466.787 MHz
[ 2.120116] Magic number: 8:22:78
[ 2.121287] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x31f8c1a78ae, max_idle_ns: 440795301702 ns
[ 2.122453] console [netcon0] enabled
[ 2.122838] netconsole: network logging started
[ 2.123496] ALSA device list:
[ 2.123826] No soundcards found.
[ 2.132882] Freeing unused kernel memory: 1092K (ffffffff81f3c000 - ffffffff8204d000)
[ 2.133781] Write protecting the kernel read-only data: 14336k
[ 2.142268] Freeing unused kernel memory: 1296K (ffff8800018bc000 - ffff880001a00000)
[ 2.147172] Freeing unused kernel memory: 396K (ffff880001d9d000 - ffff880001e00000)
:: running early hook [udev]
Warning: /lib/modules/4.5.0-rc1+/modules.devname not found - ignoring
[ 2.156227] random: systemd-tmpfile urandom read with 3 bits of entropy available
starting version 228
:: running hook [udev]
:: Triggering uevents...
[ 2.203265] rcu-torture:torture_onoff task: offlining 13
[ 2.311090] smpboot: CPU 13 is now offline
[ 2.335175] rcu-torture:torture_onoff task: offlined 13
[ 2.374076] hrtimer: interrupt took 3052040 ns
ERROR: device '' not found. Skipping fsck.
ERROR: Unable to find root device ''.
You are being dropped to a recovery shell
Type 'exit' to try and continue booting
sh: can't access tty; job control turned off
[rootfs /]# [ 2.532402] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
[ 3.175686] clocksource: Switched to clocksource tsc
[ 3.335015] rcu-torture:torture_onoff task: offlining 9
[ 3.458326] smpboot: CPU 9 is now offline
[ 3.473041] rcu-torture:torture_onoff task: offlined 9
[ 4.474012] rcu-torture:torture_onoff task: offlining 3
[ 4.658671] smpboot: CPU 3 is now offline
[ 4.707907] rcu-torture:torture_onoff task: offlined 3
[ 5.708012] rcu-torture:torture_onoff task: onlining 13
[ 5.718635] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 5.849194] rcu-torture:torture_onoff task: onlined 13
[ 6.849043] rcu-torture:torture_onoff task: offlining 6
[ 6.918255] smpboot: CPU 6 is now offline
[ 6.973968] rcu-torture:torture_onoff task: offlined 6
[ 7.975013] rcu-torture:torture_onoff task: offlining 13
[ 8.030256] smpboot: CPU 13 is now offline
[ 8.084823] rcu-torture:torture_onoff task: offlined 13
[ 9.085014] rcu-torture:torture_onoff task: offlining 2
[ 9.141234] smpboot: CPU 2 is now offline
[ 9.195554] rcu-torture:torture_onoff task: offlined 2
[ 10.195008] rcu-torture:torture_onoff task: onlining 6
[ 10.249497] smpboot: Booting Node 0 Processor 6 APIC 0x6
[ 10.275147] rcu-torture:torture_onoff task: onlined 6
[ 11.275012] rcu-torture:torture_onoff task: offlining 8
[ 11.348220] smpboot: CPU 8 is now offline
[ 11.352839] rcu-torture:torture_onoff task: offlined 8
[ 12.353015] rcu-torture:torture_onoff task: onlining 8
[ 12.376796] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 12.523163] rcu-torture:torture_onoff task: onlined 8
[ 13.523013] rcu-torture:torture_onoff task: offlining 6
[ 13.571220] smpboot: CPU 6 is now offline
[ 13.577564] rcu-torture:torture_onoff task: offlined 6
[ 14.578012] rcu-torture:torture_onoff task: onlining 1
[ 14.602743] x86: Booting SMP configuration:
[ 14.603246] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 14.729178] microcode: CPU1 sig=0x206c2, pf=0x1, revision=0x1
[ 14.729828] rcu-torture:torture_onoff task: onlined 1
[ 15.730012] rcu-torture:torture_onoff task: onlining 9
[ 15.764765] smpboot: Booting Node 0 Processor 9 APIC 0x9
[ 15.918505] rcu-torture:torture_onoff task: onlined 9
[ 16.919012] rcu-torture:torture_onoff task: offlining 15
[ 17.032826] smpboot: CPU 15 is now offline
[ 17.088898] rcu-torture:torture_onoff task: offlined 15
[ 18.089019] rcu-torture:torture_onoff task: offlining 1
[ 18.144244] smpboot: CPU 1 is now offline
[ 18.198796] rcu-torture:torture_onoff task: offlined 1
[ 19.199020] rcu-torture:torture_onoff task: onlining 1
[ 19.253718] x86: Booting SMP configuration:
[ 19.254220] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 19.280164] rcu-torture:torture_onoff task: onlined 1
[ 20.280009] rcu-torture:torture_onoff task: onlining 13
[ 20.334516] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 20.360165] rcu-torture:torture_onoff task: onlined 13
[ 21.360012] rcu-torture:torture_onoff task: offlining 5
[ 21.398318] smpboot: CPU 5 is now offline
[ 21.402867] rcu-torture:torture_onoff task: offlined 5
[ 22.403014] rcu-torture:torture_onoff task: offlining 9
[ 22.414258] smpboot: CPU 9 is now offline
[ 22.460826] rcu-torture:torture_onoff task: offlined 9
[ 23.461009] rcu-torture:torture_onoff task: offlining 10
[ 23.603210] smpboot: CPU 10 is now offline
[ 23.627577] rcu-torture:torture_onoff task: offlined 10
[ 24.627009] rcu-torture:torture_onoff task: onlining 6
[ 24.675485] smpboot: Booting Node 0 Processor 6 APIC 0x6
[ 24.789151] rcu-torture:torture_onoff task: onlined 6
[ 25.789025] rcu-torture:torture_onoff task: offlining 14
[ 25.858243] smpboot: CPU 14 is now offline
[ 25.867988] rcu-torture:torture_onoff task: offlined 14
[ 26.870062] rcu-torture:torture_onoff task: offlining 1
[ 26.925293] smpboot: CPU 1 is now offline
[ 26.978849] rcu-torture:torture_onoff task: offlined 1
[ 28.979064] rcu-torture:torture_onoff task: onlining 10
[ 29.032704] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 29.059317] rcu-torture:torture_onoff task: onlined 10
[ 30.059084] rcu-torture:torture_onoff task: onlining 14
[ 30.112682] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 30.137343] rcu-torture:torture_onoff task: onlined 14
[ 31.137078] rcu-torture:torture_onoff task: offlining 14
[ 31.166070] smpboot: CPU 14 is now offline
[ 31.219937] rcu-torture:torture_onoff task: offlined 14
[ 32.220012] rcu-torture:torture_onoff task: offlining 8
[ 32.256561] smpboot: CPU 8 is now offline
[ 32.261886] rcu-torture:torture_onoff task: offlined 8
[ 33.262016] rcu-torture:torture_onoff task: offlining 12
[ 33.380237] smpboot: CPU 12 is now offline
[ 33.423113] rcu-torture:torture_onoff task: offlined 12
[ 34.423009] rcu-torture:torture_onoff task: offlining 10
[ 34.466212] smpboot: CPU 10 is now offline
[ 34.471595] rcu-torture:torture_onoff task: offlined 10
[ 35.471008] rcu-torture:torture_onoff task: onlining 3
[ 35.479539] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 35.508119] rcu-torture:torture_onoff task: onlined 3
[ 36.509009] rcu-torture:torture_onoff task: onlining 5
[ 36.563589] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 36.588315] rcu-torture:torture_onoff task: onlined 5
[ 38.589069] rcu-torture:torture_onoff task: offlining 5
[ 38.644261] smpboot: CPU 5 is now offline
[ 38.698930] rcu-torture:torture_onoff task: offlined 5
[ 39.699060] rcu-torture:torture_onoff task: offlining 4
[ 39.754291] smpboot: CPU 4 is now offline
[ 39.808637] rcu-torture:torture_onoff task: offlined 4
[ 40.809021] rcu-torture:torture_onoff task: offlining 11
[ 40.865225] smpboot: CPU 11 is now offline
[ 40.919552] rcu-torture:torture_onoff task: offlined 11
[ 41.939673] rcu-torture:torture_onoff task: onlining 11
[ 41.948489] smpboot: Booting Node 0 Processor 11 APIC 0xb
[ 42.031085] rcu-torture:torture_onoff task: onlined 11
[ 43.031008] rcu-torture:torture_onoff task: onlining 4
[ 43.039562] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 43.129117] rcu-torture:torture_onoff task: onlined 4
[ 44.142784] rcu-torture:torture_onoff task: onlining 5
[ 44.188584] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 44.257115] rcu-torture:torture_onoff task: onlined 5
[ 45.257008] rcu-torture:torture_onoff task: onlining 14
[ 45.278452] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 45.445125] rcu-torture:torture_onoff task: onlined 14
[ 47.445009] rcu-torture:torture_onoff task: onlining 9
[ 47.499476] smpboot: Booting Node 0 Processor 9 APIC 0x9
[ 47.533228] rcu-torture:torture_onoff task: onlined 9
[ 48.533037] rcu-torture:torture_onoff task: onlining 10
[ 48.587760] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 48.625191] rcu-torture:torture_onoff task: onlined 10
[ 49.625023] rcu-torture:torture_onoff task: offlining 3
[ 49.684242] smpboot: CPU 3 is now offline
[ 49.739836] rcu-torture:torture_onoff task: offlined 3
[ 50.740027] rcu-torture:torture_onoff task: onlining 3
[ 50.795725] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 50.825193] rcu-torture:torture_onoff task: onlined 3
[ 51.839424] rcu-torture:torture_onoff task: offlining 10
[ 51.863245] smpboot: CPU 10 is now offline
[ 51.907767] rcu-torture:torture_onoff task: offlined 10
[ 52.908012] rcu-torture:torture_onoff task: onlining 8
[ 52.954756] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 53.045171] rcu-torture:torture_onoff task: onlined 8
[ 54.045023] rcu-torture:torture_onoff task: offlining 13
[ 54.097238] smpboot: CPU 13 is now offline
[ 54.131066] rcu-torture:torture_onoff task: offlined 13
[ 55.131011] rcu-torture:torture_onoff task: offlining 9
[ 55.176245] smpboot: CPU 9 is now offline
[ 55.181098] rcu-torture:torture_onoff task: offlined 9
[ 56.181027] rcu-torture:torture_onoff task: onlining 10
[ 56.236916] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 56.283185] rcu-torture:torture_onoff task: onlined 10
[ 57.283030] rcu-torture:torture_onoff task: onlining 2
[ 57.352121] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 57.414115] rcu-torture:torture_onoff task: onlined 2
[ 58.415028] rcu-torture:torture_onoff task: onlining 1
[ 58.472096] x86: Booting SMP configuration:
[ 58.472545] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 58.508573] rcu-torture:torture_onoff task: onlined 1
[ 59.510021] rcu-torture:torture_onoff task: offlining 4
[ 59.588298] smpboot: CPU 4 is now offline
[ 59.643851] rcu-torture:torture_onoff task: offlined 4
[ 60.645012] rcu-torture:torture_onoff task: offlining 14
[ 60.728261] smpboot: CPU 14 is now offline
[ 60.783787] rcu-torture:torture_onoff task: offlined 14
[ 61.158025] rcu-torture: rtc: ffffffff820d7030 ver: 493 tfle: 0 rta: 493 rtaf: 0 rtf: 484 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 211179 onoff: 23/23:29/29 37,189:38,232 2550:2997 (HZ=1000) barrier: 0/0:0 cbflood: 118
[ 61.160296] rcu-torture: Reader Pipe: 1606911908 2853 0 0 0 0 0 0 0 0 0
[ 61.161231] rcu-torture: Reader Batch: 1564038099 42876662 0 0 0 0 0 0 0 0 0
[ 61.162222] rcu-torture: Free-Block Circulation: 492 492 491 490 489 488 487 486 485 484 0
[ 61.784011] rcu-torture:torture_onoff task: onlining 13
[ 61.817712] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 62.001153] rcu-torture:torture_onoff task: onlined 13
[ 63.001013] rcu-torture:torture_onoff task: offlining 1
[ 63.103245] smpboot: CPU 1 is now offline
[ 63.109824] rcu-torture:torture_onoff task: offlined 1
[ 64.152203] rcu-torture:torture_onoff task: offlining 10
[ 64.185213] smpboot: CPU 10 is now offline
[ 64.189763] rcu-torture:torture_onoff task: offlined 10
[ 65.190026] rcu-torture:torture_onoff task: onlining 9
[ 65.216015] smpboot: Booting Node 0 Processor 9 APIC 0x9
[ 65.434160] rcu-torture:torture_onoff task: onlined 9
[ 66.434014] rcu-torture:torture_onoff task: onlining 12
[ 66.488805] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 66.532942] rcu-torture:torture_onoff task: onlined 12
[ 67.533021] rcu-torture:torture_onoff task: offlining 3
[ 67.599534] smpboot: CPU 3 is now offline
[ 67.655672] rcu-torture:torture_onoff task: offlined 3
[ 68.656019] rcu-torture:torture_onoff task: onlining 15
[ 68.712267] smpboot: Booting Node 0 Processor 15 APIC 0xf
[ 68.763417] rcu-torture:torture_onoff task: onlined 15
[ 69.764019] rcu-torture:torture_onoff task: offlining 15
[ 69.819284] smpboot: CPU 15 is now offline
[ 69.873984] rcu-torture:torture_onoff task: offlined 15
[ 70.874012] rcu-torture:torture_onoff task: onlining 3
[ 70.949074] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 70.983208] rcu-torture:torture_onoff task: onlined 3
[ 71.983022] rcu-torture:torture_onoff task: onlining 10
[ 72.009076] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 72.207488] rcu-torture:torture_onoff task: onlined 10
[ 73.208011] rcu-torture:torture_onoff task: offlining 5
[ 73.239256] smpboot: CPU 5 is now offline
[ 73.243935] rcu-torture:torture_onoff task: offlined 5
[ 74.244019] rcu-torture:torture_onoff task: onlining 4
[ 74.252811] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 74.563168] rcu-torture:torture_onoff task: onlined 4
[ 75.563012] rcu-torture:torture_onoff task: offlining 6
[ 75.600357] smpboot: CPU 6 is now offline
[ 75.625881] rcu-torture:torture_onoff task: offlined 6
[ 76.626008] rcu-torture:torture_onoff task: offlining 11
[ 76.634187] smpboot: CPU 11 is now offline
[ 76.641088] rcu-torture:torture_onoff task: offlined 11
[ 77.641015] rcu-torture:torture_onoff task: offlining 2
[ 77.649235] smpboot: CPU 2 is now offline
[ 77.655925] rcu-torture:torture_onoff task: offlined 2
[ 78.656017] rcu-torture:torture_onoff task: offlining 13
[ 78.666080] smpboot: CPU 13 is now offline
[ 78.672926] rcu-torture:torture_onoff task: offlined 13
[ 79.673018] rcu-torture:torture_onoff task: offlining 9
[ 79.680209] smpboot: CPU 9 is now offline
[ 79.686833] rcu-torture:torture_onoff task: offlined 9
[ 80.687010] rcu-torture:torture_onoff task: onlining 9
[ 80.695536] smpboot: Booting Node 0 Processor 9 APIC 0x9
[ 80.722115] rcu-torture:torture_onoff task: onlined 9
[ 81.722009] rcu-torture:torture_onoff task: offlining 10
[ 81.804173] smpboot: CPU 10 is now offline
[ 81.808697] rcu-torture:torture_onoff task: offlined 10
[ 82.809011] rcu-torture:torture_onoff task: onlining 13
[ 82.817598] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 82.992126] rcu-torture:torture_onoff task: onlined 13
[ 83.992009] rcu-torture:torture_onoff task: onlining 1
[ 84.024124] x86: Booting SMP configuration:
[ 84.024445] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 84.253120] rcu-torture:torture_onoff task: onlined 1
[ 85.253012] rcu-torture:torture_onoff task: offlining 8
[ 85.353204] smpboot: CPU 8 is now offline
[ 85.403738] rcu-torture:torture_onoff task: offlined 8
[ 86.404008] rcu-torture:torture_onoff task: onlining 15
[ 86.458466] smpboot: Booting Node 0 Processor 15 APIC 0xf
[ 86.485146] rcu-torture:torture_onoff task: onlined 15
[ 87.485026] rcu-torture:torture_onoff task: onlining 8
[ 87.539695] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 87.597212] rcu-torture:torture_onoff task: onlined 8
[ 88.597022] rcu-torture:torture_onoff task: onlining 2
[ 88.652738] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 88.693197] rcu-torture:torture_onoff task: onlined 2
[ 89.693018] rcu-torture:torture_onoff task: offlining 12
[ 89.749592] smpboot: CPU 12 is now offline
[ 89.804730] rcu-torture:torture_onoff task: offlined 12
[ 90.805021] rcu-torture:torture_onoff task: offlining 7
[ 90.878281] smpboot: CPU 7 is now offline
[ 90.933559] rcu-torture:torture_onoff task: offlined 7
[ 91.933009] rcu-torture:torture_onoff task: offlining 2
[ 92.041205] smpboot: CPU 2 is now offline
[ 92.085497] rcu-torture:torture_onoff task: offlined 2
[ 93.085012] rcu-torture:torture_onoff task: onlining 14
[ 93.092669] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 93.195163] rcu-torture:torture_onoff task: onlined 14
[ 94.206214] rcu-torture:torture_onoff task: onlining 10
[ 94.214679] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 94.335117] rcu-torture:torture_onoff task: onlined 10
[ 95.335009] rcu-torture:torture_onoff task: onlining 5
[ 95.343523] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 95.428133] rcu-torture:torture_onoff task: onlined 5
[ 97.428020] rcu-torture:torture_onoff task: onlining 11
[ 97.482836] smpboot: Booting Node 0 Processor 11 APIC 0xb
[ 97.509239] rcu-torture:torture_onoff task: onlined 11
[ 98.509045] rcu-torture:torture_onoff task: offlining 4
[ 98.563737] smpboot: CPU 4 is now offline
[ 98.618051] rcu-torture:torture_onoff task: offlined 4
[ 99.618042] rcu-torture:torture_onoff task: offlining 13
[ 99.689524] smpboot: CPU 13 is now offline
[ 99.744813] rcu-torture:torture_onoff task: offlined 13
[ 100.745028] rcu-torture:torture_onoff task: offlining 5
[ 100.800212] smpboot: CPU 5 is now offline
[ 100.854566] rcu-torture:torture_onoff task: offlined 5
[ 101.854007] rcu-torture:torture_onoff task: onlining 12
[ 101.878507] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 101.971166] rcu-torture:torture_onoff task: onlined 12
[ 102.971012] rcu-torture:torture_onoff task: offlining 1
[ 103.147591] smpboot: CPU 1 is now offline
[ 103.152829] rcu-torture:torture_onoff task: offlined 1
[ 104.153008] rcu-torture:torture_onoff task: onlining 4
[ 104.168508] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 104.320120] rcu-torture:torture_onoff task: onlined 4
[ 105.320012] rcu-torture:torture_onoff task: onlining 5
[ 105.348790] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 105.408758] rcu-torture:torture_onoff task: onlined 5
[ 106.409013] rcu-torture:torture_onoff task: offlining 5
[ 106.464247] smpboot: CPU 5 is now offline
[ 106.518638] rcu-torture:torture_onoff task: offlined 5
[ 107.520011] rcu-torture:torture_onoff task: onlining 2
[ 107.574734] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 107.605173] rcu-torture:torture_onoff task: onlined 2
[ 108.606012] rcu-torture:torture_onoff task: onlining 13
[ 108.660778] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 108.701176] rcu-torture:torture_onoff task: onlined 13
[ 109.701020] rcu-torture:torture_onoff task: onlining 5
[ 109.755826] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 109.842203] rcu-torture:torture_onoff task: onlined 5
[ 110.842042] rcu-torture:torture_onoff task: offlining 11
[ 110.962787] smpboot: CPU 11 is now offline
[ 111.018932] rcu-torture:torture_onoff task: offlined 11
[ 112.019012] rcu-torture:torture_onoff task: offlining 13
[ 112.084250] smpboot: CPU 13 is now offline
[ 112.136796] rcu-torture:torture_onoff task: offlined 13
[ 113.137012] rcu-torture:torture_onoff task: offlining 12
[ 113.154984] smpboot: CPU 12 is now offline
[ 113.160855] rcu-torture:torture_onoff task: offlined 12
[ 114.161011] rcu-torture:torture_onoff task: offlining 8
[ 114.264240] smpboot: CPU 8 is now offline
[ 114.276779] rcu-torture:torture_onoff task: offlined 8
[ 116.277011] rcu-torture:torture_onoff task: offlining 5
[ 116.333258] smpboot: CPU 5 is now offline
[ 116.387757] rcu-torture:torture_onoff task: offlined 5
[ 117.388014] rcu-torture:torture_onoff task: onlining 6
[ 117.442499] smpboot: Booting Node 0 Processor 6 APIC 0x6
[ 117.470138] rcu-torture:torture_onoff task: onlined 6
[ 118.470013] rcu-torture:torture_onoff task: offlining 2
[ 118.525211] smpboot: CPU 2 is now offline
[ 118.529547] rcu-torture:torture_onoff task: offlined 2
[ 119.529012] rcu-torture:torture_onoff task: onlining 11
[ 119.537631] smpboot: Booting Node 0 Processor 11 APIC 0xb
[ 119.564166] rcu-torture:torture_onoff task: onlined 11
[ 120.564011] rcu-torture:torture_onoff task: offlining 14
[ 120.619237] smpboot: CPU 14 is now offline
[ 120.673701] rcu-torture:torture_onoff task: offlined 14
[ 121.163011] rcu-torture: rtc: ffffffff820d6b80 ver: 972 tfle: 0 rta: 972 rtaf: 0 rtf: 963 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 427620 onoff: 48/48:56/56 35,319:14,232 5863:5519 (HZ=1000) barrier: 0/0:0 cbflood: 236
[ 121.164580] rcu-torture: Reader Pipe: 3205717609 5572 0 0 0 0 0 0 0 0 0
[ 121.165245] rcu-torture: Reader Batch: 3130266830 75456351 0 0 0 0 0 0 0 0 0
[ 121.165928] rcu-torture: Free-Block Circulation: 971 971 970 969 968 967 966 965 964 963 0
[ 121.674012] rcu-torture:torture_onoff task: onlining 13
[ 121.682646] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 121.760166] rcu-torture:torture_onoff task: onlined 13
[ 122.760013] rcu-torture:torture_onoff task: onlining 8
[ 122.769709] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 122.796168] rcu-torture:torture_onoff task: onlined 8
[ 123.796012] rcu-torture:torture_onoff task: offlining 13
[ 123.911235] smpboot: CPU 13 is now offline
[ 123.955786] rcu-torture:torture_onoff task: offlined 13
[ 124.956012] rcu-torture:torture_onoff task: onlining 13
[ 124.976740] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 125.064167] rcu-torture:torture_onoff task: onlined 13
[ 126.064011] rcu-torture:torture_onoff task: offlining 8
[ 126.237225] smpboot: CPU 8 is now offline
[ 126.291774] rcu-torture:torture_onoff task: offlined 8
[ 127.293014] rcu-torture:torture_onoff task: onlining 12
[ 127.348537] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 127.375208] rcu-torture:torture_onoff task: onlined 12
[ 128.375075] rcu-torture:torture_onoff task: offlining 12
[ 128.428324] smpboot: CPU 12 is now offline
[ 128.481630] rcu-torture:torture_onoff task: offlined 12
[ 129.482056] rcu-torture:torture_onoff task: onlining 5
[ 129.536575] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 129.562253] rcu-torture:torture_onoff task: onlined 5
[ 130.562063] rcu-torture:torture_onoff task: onlining 8
[ 130.616613] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 130.643248] rcu-torture:torture_onoff task: onlined 8
[ 131.643021] rcu-torture:torture_onoff task: offlining 5
[ 131.755237] smpboot: CPU 5 is now offline
[ 131.770580] rcu-torture:torture_onoff task: offlined 5
[ 132.772010] rcu-torture:torture_onoff task: offlining 11
[ 132.831224] smpboot: CPU 11 is now offline
[ 132.835566] rcu-torture:torture_onoff task: offlined 11
[ 133.835008] rcu-torture:torture_onoff task: offlining 10
[ 133.876259] smpboot: CPU 10 is now offline
[ 133.880526] rcu-torture:torture_onoff task: offlined 10
[ 134.880010] rcu-torture:torture_onoff task: offlining 3
[ 134.977633] smpboot: CPU 3 is now offline
[ 134.982503] rcu-torture:torture_onoff task: offlined 3
[ 135.982008] rcu-torture:torture_onoff task: offlining 4
[ 136.059186] smpboot: CPU 4 is now offline
[ 136.072155] rcu-torture:torture_onoff task: offlined 4
[ 137.072011] rcu-torture:torture_onoff task: onlining 14
[ 137.080403] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 137.108127] rcu-torture:torture_onoff task: onlined 14
[ 138.108010] rcu-torture:torture_onoff task: onlining 1
[ 138.162404] x86: Booting SMP configuration:
[ 138.162726] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 138.187156] rcu-torture:torture_onoff task: onlined 1
[ 139.187026] rcu-torture:torture_onoff task: onlining 11
[ 139.241678] smpboot: Booting Node 0 Processor 11 APIC 0xb
[ 139.266211] rcu-torture:torture_onoff task: onlined 11
[ 140.266085] rcu-torture:torture_onoff task: offlining 14
[ 140.324971] smpboot: CPU 14 is now offline
[ 140.379519] rcu-torture:torture_onoff task: offlined 14
[ 141.379013] rcu-torture:torture_onoff task: onlining 10
[ 141.387463] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 141.621164] rcu-torture:torture_onoff task: onlined 10
[ 142.621011] rcu-torture:torture_onoff task: onlining 12
[ 142.629728] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 142.753171] rcu-torture:torture_onoff task: onlined 12
[ 143.753012] rcu-torture:torture_onoff task: onlining 7
[ 143.793773] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 143.850176] rcu-torture:torture_onoff task: onlined 7
[ 144.850014] rcu-torture:torture_onoff task: offlining 8
[ 144.925278] smpboot: CPU 8 is now offline
[ 144.972839] rcu-torture:torture_onoff task: offlined 8
[ 145.973432] rcu-torture:torture_onoff task: offlining 1
[ 145.988224] smpboot: CPU 1 is now offline
[ 145.992547] rcu-torture:torture_onoff task: offlined 1
[ 146.992070] rcu-torture:torture_onoff task: onlining 1
[ 147.046569] x86: Booting SMP configuration:
[ 147.046951] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 147.071234] rcu-torture:torture_onoff task: onlined 1
[ 148.071082] rcu-torture:torture_onoff task: onlining 8
[ 148.125583] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 148.246253] rcu-torture:torture_onoff task: onlined 8
[ 149.246087] rcu-torture:torture_onoff task: offlining 6
[ 149.301397] smpboot: CPU 6 is now offline
[ 149.355742] rcu-torture:torture_onoff task: offlined 6
[ 150.356083] rcu-torture:torture_onoff task: offlining 9
[ 150.411331] smpboot: CPU 9 is now offline
[ 150.465602] rcu-torture:torture_onoff task: offlined 9
[ 151.466027] rcu-torture:torture_onoff task: onlining 4
[ 151.506652] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 151.607282] rcu-torture:torture_onoff task: onlined 4
[ 152.607013] rcu-torture:torture_onoff task: offlining 4
[ 152.619229] smpboot: CPU 4 is now offline
[ 152.623673] rcu-torture:torture_onoff task: offlined 4
[ 153.624012] rcu-torture:torture_onoff task: offlining 10
[ 153.642208] smpboot: CPU 10 is now offline
[ 153.646624] rcu-torture:torture_onoff task: offlined 10
[ 154.647009] rcu-torture:torture_onoff task: onlining 6
[ 154.672468] smpboot: Booting Node 0 Processor 6 APIC 0x6
[ 154.952173] rcu-torture:torture_onoff task: onlined 6
[ 155.952011] rcu-torture:torture_onoff task: offlining 7
[ 155.998230] smpboot: CPU 7 is now offline
[ 156.040732] rcu-torture:torture_onoff task: offlined 7
[ 157.041007] rcu-torture:torture_onoff task: onlining 14
[ 157.095463] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 157.123126] rcu-torture:torture_onoff task: onlined 14
[ 158.124008] rcu-torture:torture_onoff task: onlining 10
[ 158.179465] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 158.208159] rcu-torture:torture_onoff task: onlined 10
[ 159.209012] rcu-torture:torture_onoff task: offlining 11
[ 159.288513] smpboot: CPU 11 is now offline
[ 159.342602] rcu-torture:torture_onoff task: offlined 11
[ 161.343028] rcu-torture:torture_onoff task: offlining 10
[ 161.532630] smpboot: CPU 10 is now offline
[ 161.538953] rcu-torture:torture_onoff task: offlined 10
[ 162.539012] rcu-torture:torture_onoff task: onlining 9
[ 162.592954] smpboot: Booting Node 0 Processor 9 APIC 0x9
[ 162.691169] rcu-torture:torture_onoff task: onlined 9
[ 163.699428] rcu-torture:torture_onoff task: offlining 12
[ 163.787094] smpboot: CPU 12 is now offline
[ 163.791727] rcu-torture:torture_onoff task: offlined 12
[ 164.792008] rcu-torture:torture_onoff task: onlining 2
[ 164.832477] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 164.926143] rcu-torture:torture_onoff task: onlined 2
[ 165.926008] rcu-torture:torture_onoff task: offlining 13
[ 165.977219] smpboot: CPU 13 is now offline
[ 165.983491] rcu-torture:torture_onoff task: offlined 13
[ 166.983009] rcu-torture:torture_onoff task: onlining 11
[ 167.037444] smpboot: Booting Node 0 Processor 11 APIC 0xb
[ 167.091149] rcu-torture:torture_onoff task: onlined 11
[ 168.091022] rcu-torture:torture_onoff task: onlining 13
[ 168.146672] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 168.205181] rcu-torture:torture_onoff task: onlined 13
[ 169.205020] rcu-torture:torture_onoff task: offlining 2
[ 169.261253] smpboot: CPU 2 is now offline
[ 169.316811] rcu-torture:torture_onoff task: offlined 2
[ 170.317021] rcu-torture:torture_onoff task: onlining 10
[ 170.372697] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 170.426193] rcu-torture:torture_onoff task: onlined 10
[ 171.426012] rcu-torture:torture_onoff task: onlining 5
[ 171.471808] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 171.589994] rcu-torture:torture_onoff task: onlined 5
[ 172.590013] rcu-torture:torture_onoff task: onlining 2
[ 172.598761] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 172.751166] rcu-torture:torture_onoff task: onlined 2
[ 173.751011] rcu-torture:torture_onoff task: onlining 3
[ 173.805841] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 174.070161] rcu-torture:torture_onoff task: onlined 3
[ 175.080195] rcu-torture:torture_onoff task: offlining 5
[ 175.179614] smpboot: CPU 5 is now offline
[ 175.186036] rcu-torture:torture_onoff task: offlined 5
[ 176.186026] rcu-torture:torture_onoff task: offlining 10
[ 176.252265] smpboot: CPU 10 is now offline
[ 176.306864] rcu-torture:torture_onoff task: offlined 10
[ 178.307012] rcu-torture:torture_onoff task: offlining 9
[ 178.398309] smpboot: CPU 9 is now offline
[ 178.452600] rcu-torture:torture_onoff task: offlined 9
[ 179.453008] rcu-torture:torture_onoff task: offlining 3
[ 179.508214] smpboot: CPU 3 is now offline
[ 179.562522] rcu-torture:torture_onoff task: offlined 3
[ 180.562008] rcu-torture:torture_onoff task: offlining 14
[ 180.617202] smpboot: CPU 14 is now offline
[ 180.671471] rcu-torture:torture_onoff task: offlined 14
[ 181.166014] rcu-torture: rtc: ffffffff820d6760 ver: 1451 tfle: 0 rta: 1451 rtaf: 0 rtf: 1442 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 640476 onoff: 74/74:82/82 35,319:14,232 9128:8228 (HZ=1000) barrier: 0/0:0 cbflood: 352
[ 181.168279] rcu-torture: Reader Pipe: 4782759012 8318 0 0 0 0 0 0 0 0 0
[ 181.169233] rcu-torture: Reader Batch: 4672385735 110381595 0 0 0 0 0 0 0 0 0
[ 181.170216] rcu-torture: Free-Block Circulation: 1450 1450 1449 1448 1447 1446 1445 1444 1443 1442 0
[ 181.692232] rcu-torture:torture_onoff task: onlining 10
[ 181.754674] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 181.833162] rcu-torture:torture_onoff task: onlined 10
[ 182.833013] rcu-torture:torture_onoff task: offlining 8
[ 182.899242] smpboot: CPU 8 is now offline
[ 182.941036] rcu-torture:torture_onoff task: offlined 8
[ 183.964159] rcu-torture:torture_onoff task: offlining 6
[ 183.984255] smpboot: CPU 6 is now offline
[ 183.988894] rcu-torture:torture_onoff task: offlined 6
[ 184.989013] rcu-torture:torture_onoff task: onlining 5
[ 185.026816] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 185.058174] rcu-torture:torture_onoff task: onlined 5
[ 186.058022] rcu-torture:torture_onoff task: offlining 5
[ 186.087219] smpboot: CPU 5 is now offline
[ 186.091684] rcu-torture:torture_onoff task: offlined 5
[ 187.092028] rcu-torture:torture_onoff task: onlining 5
[ 187.147618] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 187.177207] rcu-torture:torture_onoff task: onlined 5
[ 188.177014] rcu-torture:torture_onoff task: onlining 4
[ 191.251478] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 191.400144] rcu-torture:torture_onoff task: onlined 4
[ 192.400012] rcu-torture:torture_onoff task: offlining 4
[ 192.569230] smpboot: CPU 4 is now offline
[ 192.573752] rcu-torture:torture_onoff task: offlined 4
[ 193.574011] rcu-torture:torture_onoff task: onlining 4
[ 193.583672] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 193.673166] rcu-torture:torture_onoff task: onlined 4
[ 194.673021] rcu-torture:torture_onoff task: onlining 3
[ 194.698722] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 194.900169] rcu-torture:torture_onoff task: onlined 3
[ 195.900011] rcu-torture:torture_onoff task: offlining 1
[ 195.923236] smpboot: CPU 1 is now offline
[ 195.928847] rcu-torture:torture_onoff task: offlined 1
[ 196.929012] rcu-torture:torture_onoff task: onlining 14
[ 196.983708] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 197.006351] rcu-torture:torture_onoff task: onlined 14
[ 198.006015] rcu-torture:torture_onoff task: offlining 11
[ 198.061232] smpboot: CPU 11 is now offline
[ 198.115789] rcu-torture:torture_onoff task: offlined 11
[ 199.116014] rcu-torture:torture_onoff task: onlining 6
[ 199.170674] smpboot: Booting Node 0 Processor 6 APIC 0x6
[ 199.193338] rcu-torture:torture_onoff task: onlined 6
[ 200.193014] rcu-torture:torture_onoff task: offlining 15
[ 200.248238] smpboot: CPU 15 is now offline
[ 200.302540] rcu-torture:torture_onoff task: offlined 15
[ 201.302008] rcu-torture:torture_onoff task: onlining 8
[ 201.310466] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 201.422183] rcu-torture:torture_onoff task: onlined 8
[ 202.422013] rcu-torture:torture_onoff task: offlining 14
[ 202.548257] smpboot: CPU 14 is now offline
[ 202.594923] rcu-torture:torture_onoff task: offlined 14
[ 203.595023] rcu-torture:torture_onoff task: offlining 2
[ 203.659226] smpboot: CPU 2 is now offline
[ 203.706239] rcu-torture:torture_onoff task: offlined 2
[ 204.706011] rcu-torture:torture_onoff task: offlining 4
[ 204.739154] smpboot: CPU 4 is now offline
[ 204.743676] rcu-torture:torture_onoff task: offlined 4
[ 205.744016] rcu-torture:torture_onoff task: onlining 4
[ 205.752612] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 205.793165] rcu-torture:torture_onoff task: onlined 4
[ 206.793016] rcu-torture:torture_onoff task: onlining 1
[ 206.848662] x86: Booting SMP configuration:
[ 206.849145] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 206.902207] rcu-torture:torture_onoff task: onlined 1
[ 207.902020] rcu-torture:torture_onoff task: onlining 12
[ 207.957701] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 207.986192] rcu-torture:torture_onoff task: onlined 12
[ 208.986079] rcu-torture:torture_onoff task: offlining 4
[ 209.092090] smpboot: CPU 4 is now offline
[ 209.146701] rcu-torture:torture_onoff task: offlined 4
[ 210.147068] rcu-torture:torture_onoff task: offlining 8
[ 210.215055] smpboot: CPU 8 is now offline
[ 210.269872] rcu-torture:torture_onoff task: offlined 8
[ 211.270011] rcu-torture:torture_onoff task: onlining 9
[ 211.279694] smpboot: Booting Node 0 Processor 9 APIC 0x9
[ 211.419172] rcu-torture:torture_onoff task: onlined 9
[ 212.449010] rcu-torture:torture_onoff task: onlining 7
[ 212.457481] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 212.686120] rcu-torture:torture_onoff task: onlined 7
[ 213.686026] rcu-torture:torture_onoff task: offlining 1
[ 213.830250] smpboot: CPU 1 is now offline
[ 213.834810] rcu-torture:torture_onoff task: offlined 1
[ 214.835012] rcu-torture:torture_onoff task: offlining 7
[ 214.846257] smpboot: CPU 7 is now offline
[ 214.850711] rcu-torture:torture_onoff task: offlined 7
[ 215.851012] rcu-torture:torture_onoff task: offlining 9
[ 215.866262] smpboot: CPU 9 is now offline
[ 215.915500] rcu-torture:torture_onoff task: offlined 9
[ 216.915011] rcu-torture:torture_onoff task: onlining 7
[ 216.923407] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 216.949146] rcu-torture:torture_onoff task: onlined 7
[ 217.949009] rcu-torture:torture_onoff task: onlining 1
[ 218.003444] x86: Booting SMP configuration:
[ 218.003775] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 218.032159] rcu-torture:torture_onoff task: onlined 1
[ 219.032015] rcu-torture:torture_onoff task: offlining 6
[ 219.087239] smpboot: CPU 6 is now offline
[ 219.141521] rcu-torture:torture_onoff task: offlined 6
[ 220.141012] rcu-torture:torture_onoff task: onlining 6
[ 220.149451] smpboot: Booting Node 0 Processor 6 APIC 0x6
[ 220.175130] rcu-torture:torture_onoff task: onlined 6
[ 221.175014] rcu-torture:torture_onoff task: offlining 1
[ 221.230231] smpboot: CPU 1 is now offline
[ 221.245187] rcu-torture:torture_onoff task: offlined 1
[ 222.245890] rcu-torture:torture_onoff task: offlining 7
[ 222.313765] smpboot: CPU 7 is now offline
[ 222.318570] rcu-torture:torture_onoff task: offlined 7
[ 223.319033] rcu-torture:torture_onoff task: onlining 7
[ 223.364428] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 223.534164] rcu-torture:torture_onoff task: onlined 7
[ 224.534007] rcu-torture:torture_onoff task: onlining 2
[ 224.542438] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 224.650320] rcu-torture:torture_onoff task: onlined 2
[ 225.667934] rcu-torture:torture_onoff task: onlining 8
[ 225.689715] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 226.055186] rcu-torture:torture_onoff task: onlined 8
[ 227.055016] rcu-torture:torture_onoff task: offlining 7
[ 227.110245] smpboot: CPU 7 is now offline
[ 227.164585] rcu-torture:torture_onoff task: offlined 7
[ 229.164037] rcu-torture:torture_onoff task: offlining 3
[ 229.222238] smpboot: CPU 3 is now offline
[ 229.277038] rcu-torture:torture_onoff task: offlined 3
[ 231.277011] rcu-torture:torture_onoff task: offlining 6
[ 231.330544] smpboot: CPU 6 is now offline
[ 231.378858] rcu-torture:torture_onoff task: offlined 6
[ 232.379622] rcu-torture:torture_onoff task: offlining 5
[ 232.452196] smpboot: CPU 5 is now offline
[ 232.506626] rcu-torture:torture_onoff task: offlined 5
[ 233.507009] rcu-torture:torture_onoff task: offlining 13
[ 233.681190] smpboot: CPU 13 is now offline
[ 233.685601] rcu-torture:torture_onoff task: offlined 13
[ 234.686009] rcu-torture:torture_onoff task: onlining 13
[ 234.739469] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 234.777109] rcu-torture:torture_onoff task: onlined 13
[ 235.777009] rcu-torture:torture_onoff task: onlining 7
[ 235.792560] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 235.894313] rcu-torture:torture_onoff task: onlined 7
[ 236.894008] rcu-torture:torture_onoff task: offlining 8
[ 236.949250] smpboot: CPU 8 is now offline
[ 237.005598] rcu-torture:torture_onoff task: offlined 8
[ 238.005071] rcu-torture:torture_onoff task: offlining 2
[ 238.060298] smpboot: CPU 2 is now offline
[ 238.114455] rcu-torture:torture_onoff task: offlined 2
[ 239.115009] rcu-torture:torture_onoff task: onlining 4
[ 239.169339] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 239.196127] rcu-torture:torture_onoff task: onlined 4
[ 240.196009] rcu-torture:torture_onoff task: onlining 14
[ 240.250356] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 240.276143] rcu-torture:torture_onoff task: onlined 14
[ 241.171022] rcu-torture: rtc: ffffffff820d6d30 ver: 1972 tfle: 0 rta: 1972 rtaf: 0 rtf: 1963 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 821755 onoff: 98/98:107/107 34,3223:14,232 15097:10753 (HZ=1000) barrier: 0/0:0 cbflood: 469
[ 241.172670] rcu-torture: Reader Pipe: 6230009275 11244 0 0 0 0 0 0 0 0 0
[ 241.173342] rcu-torture: Reader Batch: 6077569610 152450909 0 0 0 0 0 0 0 0 0
[ 241.174041] rcu-torture: Free-Block Circulation: 1971 1971 1970 1969 1968 1967 1966 1965 1964 1963 0
[ 241.302095] rcu-torture:torture_onoff task: onlining 15
[ 241.338408] smpboot: Booting Node 0 Processor 15 APIC 0xf
[ 241.403182] rcu-torture:torture_onoff task: onlined 15
[ 242.403011] rcu-torture:torture_onoff task: onlining 8
[ 242.411629] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 242.598170] rcu-torture:torture_onoff task: onlined 8
[ 243.598011] rcu-torture:torture_onoff task: offlining 8
[ 243.638205] smpboot: CPU 8 is now offline
[ 243.643015] rcu-torture:torture_onoff task: offlined 8
[ 244.675380] rcu-torture:torture_onoff task: offlining 15
[ 244.697825] smpboot: CPU 15 is now offline
[ 244.703386] rcu-torture:torture_onoff task: offlined 15
[ 245.703009] rcu-torture:torture_onoff task: offlining 13
[ 245.836597] smpboot: CPU 13 is now offline
[ 245.840638] rcu-torture:torture_onoff task: offlined 13
[ 246.841011] rcu-torture:torture_onoff task: onlining 2
[ 246.849513] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 246.876125] rcu-torture:torture_onoff task: onlined 2
[ 247.876013] rcu-torture:torture_onoff task: offlining 14
[ 247.931174] smpboot: CPU 14 is now offline
[ 247.986453] rcu-torture:torture_onoff task: offlined 14
[ 248.986012] rcu-torture:torture_onoff task: onlining 15
[ 248.994361] smpboot: Booting Node 0 Processor 15 APIC 0xf
[ 249.020164] rcu-torture:torture_onoff task: onlined 15
[ 250.020013] rcu-torture:torture_onoff task: offlining 7
[ 250.027190] smpboot: CPU 7 is now offline
[ 250.031444] rcu-torture:torture_onoff task: offlined 7
[ 251.031008] rcu-torture:torture_onoff task: onlining 5
[ 251.039363] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 251.065109] rcu-torture:torture_onoff task: onlined 5
[ 252.065009] rcu-torture:torture_onoff task: onlining 8
[ 252.200399] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 252.412118] rcu-torture:torture_onoff task: onlined 8
[ 253.443465] rcu-torture:torture_onoff task: onlining 1
[ 253.452680] x86: Booting SMP configuration:
[ 253.453200] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 253.480175] rcu-torture:torture_onoff task: onlined 1
[ 255.480012] rcu-torture:torture_onoff task: onlining 3
[ 255.497717] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 255.581151] rcu-torture:torture_onoff task: onlined 3
[ 256.581019] rcu-torture:torture_onoff task: offlining 12
[ 256.639488] smpboot: CPU 12 is now offline
[ 256.696557] rcu-torture:torture_onoff task: offlined 12
[ 257.697028] rcu-torture:torture_onoff task: offlining 10
[ 257.792240] smpboot: CPU 10 is now offline
[ 257.846715] rcu-torture:torture_onoff task: offlined 10
[ 258.847026] rcu-torture:torture_onoff task: onlining 12
[ 259.702842] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 259.746426] rcu-torture:torture_onoff task: onlined 12
[ 260.747028] rcu-torture:torture_onoff task: offlining 2
[ 261.294198] smpboot: CPU 2 is now offline
[ 261.298961] rcu-torture:torture_onoff task: offlined 2
[ 262.337169] rcu-torture:torture_onoff task: onlining 13
[ 262.373898] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 262.517168] rcu-torture:torture_onoff task: onlined 13
[ 263.518011] rcu-torture:torture_onoff task: offlining 12
[ 263.547235] smpboot: CPU 12 is now offline
[ 263.597744] rcu-torture:torture_onoff task: offlined 12
[ 264.599177] rcu-torture:torture_onoff task: offlining 15
[ 264.639259] smpboot: CPU 15 is now offline
[ 264.685479] rcu-torture:torture_onoff task: offlined 15
[ 265.705420] rcu-torture:torture_onoff task: onlining 6
[ 265.723408] smpboot: Booting Node 0 Processor 6 APIC 0x6
[ 265.769132] rcu-torture:torture_onoff task: onlined 6
[ 267.769062] rcu-torture:torture_onoff task: offlining 13
[ 267.824295] smpboot: CPU 13 is now offline
[ 267.878505] rcu-torture:torture_onoff task: offlined 13
[ 268.878008] rcu-torture:torture_onoff task: onlining 14
[ 268.932411] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 268.958155] rcu-torture:torture_onoff task: onlined 14
[ 269.958015] rcu-torture:torture_onoff task: offlining 1
[ 270.013265] smpboot: CPU 1 is now offline
[ 270.067678] rcu-torture:torture_onoff task: offlined 1
[ 271.068092] rcu-torture:torture_onoff task: onlining 7
[ 271.122640] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 271.148345] rcu-torture:torture_onoff task: onlined 7
[ 273.148012] rcu-torture:torture_onoff task: onlining 12
[ 273.156895] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 273.228932] rcu-torture:torture_onoff task: onlined 12
[ 274.229627] rcu-torture:torture_onoff task: onlining 9
[ 274.239860] smpboot: Booting Node 0 Processor 9 APIC 0x9
[ 274.335157] rcu-torture:torture_onoff task: onlined 9
[ 275.335012] rcu-torture:torture_onoff task: offlining 8
[ 275.383214] smpboot: CPU 8 is now offline
[ 275.406042] rcu-torture:torture_onoff task: offlined 8
[ 276.406017] rcu-torture:torture_onoff task: onlining 10
[ 276.460653] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 276.489140] rcu-torture:torture_onoff task: onlined 10
[ 277.489039] rcu-torture:torture_onoff task: onlining 13
[ 277.558410] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 277.587402] rcu-torture:torture_onoff task: onlined 13
[ 278.588352] rcu-torture:torture_onoff task: onlining 1
[ 278.642988] x86: Booting SMP configuration:
[ 278.643476] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 278.682425] rcu-torture:torture_onoff task: onlined 1
[ 279.683020] rcu-torture:torture_onoff task: offlining 7
[ 279.739540] smpboot: CPU 7 is now offline
[ 279.792913] rcu-torture:torture_onoff task: offlined 7
[ 280.793054] rcu-torture:torture_onoff task: offlining 14
[ 280.858439] smpboot: CPU 14 is now offline
[ 280.913004] rcu-torture:torture_onoff task: offlined 14
[ 281.918280] rcu-torture:torture_onoff task: offlining 5
[ 281.961289] smpboot: CPU 5 is now offline
[ 281.966746] rcu-torture:torture_onoff task: offlined 5
[ 282.967009] rcu-torture:torture_onoff task: onlining 14
[ 282.978634] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 283.102133] rcu-torture:torture_onoff task: onlined 14
[ 284.106745] rcu-torture:torture_onoff task: offlining 6
[ 284.200248] smpboot: CPU 6 is now offline
[ 284.205012] rcu-torture:torture_onoff task: offlined 6
[ 286.205019] rcu-torture:torture_onoff task: offlining 9
[ 286.261333] smpboot: CPU 9 is now offline
[ 286.267960] rcu-torture:torture_onoff task: offlined 9
[ 287.268016] rcu-torture:torture_onoff task: onlining 2
[ 287.322841] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 287.350199] rcu-torture:torture_onoff task: onlined 2
[ 288.350017] rcu-torture:torture_onoff task: onlining 11
[ 288.404892] smpboot: Booting Node 0 Processor 11 APIC 0xb
[ 288.433392] rcu-torture:torture_onoff task: onlined 11
[ 289.434021] rcu-torture:torture_onoff task: offlining 4
[ 289.498357] smpboot: CPU 4 is now offline
[ 289.551981] rcu-torture:torture_onoff task: offlined 4
[ 290.552025] rcu-torture:torture_onoff task: offlining 12
[ 290.608217] smpboot: CPU 12 is now offline
[ 290.672899] rcu-torture:torture_onoff task: offlined 12
[ 291.673013] rcu-torture:torture_onoff task: offlining 3
[ 291.729198] smpboot: CPU 3 is now offline
[ 291.733673] rcu-torture:torture_onoff task: offlined 3
[ 292.734013] rcu-torture:torture_onoff task: onlining 9
[ 292.777604] smpboot: Booting Node 0 Processor 9 APIC 0x9
[ 292.885143] rcu-torture:torture_onoff task: onlined 9
[ 293.885011] rcu-torture:torture_onoff task: onlining 15
[ 293.893633] smpboot: Booting Node 0 Processor 15 APIC 0xf
[ 294.034163] rcu-torture:torture_onoff task: onlined 15
[ 295.065074] rcu-torture:torture_onoff task: offlining 2
[ 295.118208] smpboot: CPU 2 is now offline
[ 295.124735] rcu-torture:torture_onoff task: offlined 2
[ 296.160078] rcu-torture:torture_onoff task: onlining 4
[ 296.176467] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 296.346146] rcu-torture:torture_onoff task: onlined 4
[ 297.346015] rcu-torture:torture_onoff task: onlining 5
[ 297.400478] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 297.428210] rcu-torture:torture_onoff task: onlined 5
[ 298.428038] rcu-torture:torture_onoff task: onlining 3
[ 298.499156] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 298.551823] rcu-torture:torture_onoff task: onlined 3
[ 300.552021] rcu-torture:torture_onoff task: offlining 10
[ 300.609517] smpboot: CPU 10 is now offline
[ 300.664816] rcu-torture:torture_onoff task: offlined 10
[ 301.174013] rcu-torture: rtc: ffffffff820d63a0 ver: 2525 tfle: 0 rta: 2525 rtaf: 0 rtf: 2516 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1000461 onoff: 124/124:130/130 34,3223:11,552 18699:13272 (HZ=1000) barrier: 0/0:0 cbflood: 588
[ 301.176369] rcu-torture: Reader Pipe: 7696148438 14411 0 0 0 0 0 0 0 0 0
[ 301.177314] rcu-torture: Reader Batch: 7505961227 190201622 0 0 0 0 0 0 0 0 0
[ 301.178302] rcu-torture: Free-Block Circulation: 2524 2524 2523 2522 2521 2520 2519 2518 2517 2516 0
[ 301.665013] rcu-torture:torture_onoff task: onlining 2
[ 301.673722] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 301.742192] rcu-torture:torture_onoff task: onlined 2
[ 302.742013] rcu-torture:torture_onoff task: onlining 7
[ 302.750787] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 302.833156] rcu-torture:torture_onoff task: onlined 7
[ 303.833014] rcu-torture:torture_onoff task: offlining 9
[ 303.868266] smpboot: CPU 9 is now offline
[ 303.917852] rcu-torture:torture_onoff task: offlined 9
[ 304.918011] rcu-torture:torture_onoff task: onlining 8
[ 304.926769] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 305.000154] rcu-torture:torture_onoff task: onlined 8
[ 306.000014] rcu-torture:torture_onoff task: offlining 4
[ 306.074862] smpboot: CPU 4 is now offline
[ 306.079901] rcu-torture:torture_onoff task: offlined 4
[ 307.081011] rcu-torture:torture_onoff task: onlining 12
[ 307.135781] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 307.230838] rcu-torture:torture_onoff task: onlined 12
[ 308.231033] rcu-torture:torture_onoff task: offlining 1
[ 308.291112] smpboot: CPU 1 is now offline
[ 308.291635] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 308.292063] IP: [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 308.292063] PGD 0
[ 308.292063] Oops: 0002 [#1] PREEMPT SMP
[ 308.292063] Modules linked in:
[ 308.292063] CPU: 11 PID: 798 Comm: torture_onoff Not tainted 4.5.0-rc1+ #14
[ 308.292063] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 308.292063] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
[ 308.292063] RIP: 0010:[<ffffffff810b9452>] [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 308.292063] RSP: 0018:ffff88007c6f7c98 EFLAGS: 00010086
[ 308.292063] RAX: dead000000000200 RBX: ffff88007fb6cc00 RCX: ffff88007fa2cc00
[ 308.292063] RDX: 0000000000000000 RSI: ffff88007fa2d6d0 RDI: ffff88007fb6cc00
[ 308.292063] RBP: ffff88007c6f7cc0 R08: 0000000000000000 R09: ffffffff81e4d360
[ 308.292063] R10: ffffea0001f2daa0 R11: 0000000000000000 R12: ffff88007fa2d6d0
[ 308.292063] R13: ffff88007fb6cc00 R14: 000000000000000b R15: ffff88007fa2c420
[ 308.292063] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 308.292063] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 308.292063] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 308.292063] Stack:
[ 308.292063] ffff88007fb6cc00 ffff88007fa2d6d8 ffff88007fa2dad0 ffff88007fa2d8d0
[ 308.292063] ffff88007fa2d4d8 ffff88007c6f7d08 ffffffff810b95c4 ffff88007fa2cc00
[ 308.292063] ffff88007fa2d648 00000000fffffff0 ffffffff81e4e0c0 0000000000000007
[ 308.292063] Call Trace:
[ 308.292063] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 308.292063] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 308.292063] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 308.292063] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 308.292063] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 308.292063] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 308.292063] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 308.292063] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 308.292063] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 308.292063] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 308.292063] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 308.292063] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 308.292063] Code: 56 41 55 41 54 53 48 8b 06 44 8b 77 40 48 85 c0 74 53 49 89 fd 49 89 f4 4d 8b 3c 24 66 66 66 66 90 49 8b 07 49 8b 57 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 00 00 00 00 ad de 4c 89
[ 308.292063] RIP [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 308.292063] RSP <ffff88007c6f7c98>
[ 308.292063] CR2: 0000000000000000
[ 308.292063] ---[ end trace 29cb5d70ad875872 ]---
[ 308.292063] note: torture_onoff[798] exited with preempt_count 3
[ 336.362003] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 336.362003] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=7000
[ 336.362003] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=7000
[ 336.362003] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=7001
[ 336.362003] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=7001
[ 336.362003] (detected by 7, t=21006 jiffies, g=4731, c=4730, q=2)
[ 336.362003] Task dump for CPU 3:
[ 336.362003] rcu_torture_rea R running task 14760 782 2 0x00000008
[ 336.362003] 0000000021ca5292 0000000000000001 00000000cfc06af0 ffff88007c5bfcf0
[ 336.362003] ffffffff813480d7 ffff88007c5bfd20 ffffffff8133944d ffff88007fb6cc00
[ 336.362003] 0000000021cadf3e 0000000000000001 00000000cfc06af0 ffff88007c5bfd30
[ 336.362003] Call Trace:
[ 336.362003] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 336.362003] [<ffffffff8133944d>] ? delay_tsc+0x1d/0xc0
[ 336.362003] [<ffffffff8133930a>] ? __delay+0xa/0x10
[ 336.362003] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
[ 336.362003] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 336.362003] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 336.362003] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 336.362003] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 336.362003] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 336.362003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 336.362003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 336.362003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 336.362003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 336.362003] Task dump for CPU 8:
[ 336.362003] rcu_torture_rea R running task 14760 789 2 0x00000008
[ 336.362003] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
[ 336.362003] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
[ 336.362003] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
[ 336.362003] Call Trace:
[ 336.362003] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
[ 336.362003] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
[ 336.362003] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
[ 336.362003] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 336.362003] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 336.362003] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
[ 336.362003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 336.362003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 336.362003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 336.362003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 336.362003] Task dump for CPU 11:
[ 336.362003] torture_onoff R running task 13416 798 2 0x00000008
[ 336.362003] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
[ 336.362003] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
[ 336.362003] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
[ 336.362003] Call Trace:
[ 336.362003] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
[ 336.362003] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
[ 336.362003] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
[ 336.362003] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
[ 336.362003] [<ffffffff818b6422>] ? page_fault+0x22/0x30
[ 336.362003] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 336.362003] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
[ 336.362003] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
[ 336.362003] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
[ 336.362003] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
[ 336.362003] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
[ 336.362003] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 336.362003] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 336.362003] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 336.362003] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 336.362003] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
[ 336.362003] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
[ 336.362003] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 336.362003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 336.362003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 336.362003] Task dump for CPU 12:
[ 336.362003] rcu_torture_rea R running task 14760 786 2 0x00000008
[ 336.362003] 0000000021c7f59f 0000000000000001 00000000cfc06af0 ffff88007c0dfcf0
[ 336.362003] ffffffff813480d7 ffff88007c0dfd20 ffffffff81339448 ffff88007fa2cc00
[ 336.362003] 0000000021c888b8 0000000000000001 00000000cfc06af0 ffff88007c0dfd30
[ 336.362003] Call Trace:
[ 336.362003] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 336.362003] [<ffffffff8133944d>] ? delay_tsc+0x1d/0xc0
[ 336.362003] [<ffffffff8133930a>] ? __delay+0xa/0x10
[ 336.362003] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
[ 336.362003] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 336.362003] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 336.362003] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 336.362003] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 336.362003] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 336.362003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 336.362003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 336.362003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 336.362003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 361.179014] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1144231 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
[ 361.181325] rcu-torture: Reader Pipe: 8730585935 14768 0 0 0 0 0 0 0 0 0
[ 361.182261] rcu-torture: Reader Batch: 8415137892 315462811 0 0 0 0 0 0 0 0 0
[ 361.183234] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
[ 399.367004] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 399.367004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=27770
[ 399.367004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=27770
[ 399.367004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=27770
[ 399.367004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=27771
[ 399.367004] (detected by 14, t=84011 jiffies, g=4731, c=4730, q=2)
[ 399.367004] Task dump for CPU 3:
[ 399.367004] rcu_torture_rea R running task 14760 782 2 0x00000008
[ 399.367004] 000000008025ff9c 0000000000000001 00000000cfc06af0 ffff88007c5bfcf0
[ 399.367004] ffffffff813480d7 ffff88007c5bfd20 ffffffff813394bf ffff88007fb6cc00
[ 399.367004] 0000000080269050 0000000000000001 00000000cfc06af0 ffff88007c5bfd30
[ 399.367004] Call Trace:
[ 399.367004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 399.367004] [<ffffffff8133944d>] ? delay_tsc+0x1d/0xc0
[ 399.367004] [<ffffffff8133930a>] ? __delay+0xa/0x10
[ 399.367004] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
[ 399.367004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 399.367004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 399.367004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 399.367004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 399.367004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 399.367004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 399.367004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 399.367004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 399.367004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 399.367004] Task dump for CPU 8:
[ 399.367004] rcu_torture_rea R running task 14760 789 2 0x00000008
[ 399.367004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
[ 399.367004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
[ 399.367004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
[ 399.367004] Call Trace:
[ 399.367004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
[ 399.367004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
[ 399.367004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
[ 399.367004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 399.367004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 399.367004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
[ 399.367004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 399.367004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 399.367004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 399.367004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 399.367004] Task dump for CPU 11:
[ 399.367004] torture_onoff R running task 13416 798 2 0x00000008
[ 399.367004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
[ 399.367004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
[ 399.367004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
[ 399.367004] Call Trace:
[ 399.367004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
[ 399.367004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
[ 399.367004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
[ 399.367004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
[ 399.367004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
[ 399.367004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 399.367004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
[ 399.367004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
[ 399.367004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
[ 399.367004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
[ 399.367004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
[ 399.367004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 399.367004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 399.367004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 399.367004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 399.367004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
[ 399.367004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
[ 399.367004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 399.367004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 399.367004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 399.367004] Task dump for CPU 12:
[ 399.367004] rcu_torture_rea R running task 14760 786 2 0x00000008
[ 399.367004] 0000000081556309 0000000000000001 00000000cfc06af0 ffff88007c0dfcf0
[ 399.367004] ffffffff813480d7 ffff88007c0dfd20 ffffffff81339448 ffff88007fa2cc00
[ 399.367004] 000000008155f790 0000000000000001 00000000cfc06af0 ffff88007c0dfd30
[ 399.367004] Call Trace:
[ 399.367004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 399.367004] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
[ 399.367004] [<ffffffff8133930a>] ? __delay+0xa/0x10
[ 399.367004] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
[ 399.367004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 399.367004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 399.367004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 399.367004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 399.367004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 399.367004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 399.367004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 399.367004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 399.367004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 421.184014] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1265617 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
[ 421.186171] rcu-torture: Reader Pipe: 9599676445 14768 0 0 0 0 0 0 0 0 0
[ 421.187032] rcu-torture: Reader Batch: 9284228402 315462811 0 0 0 0 0 0 0 0 0
[ 421.187925] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
[ 421.189059] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
[ 421.189684] rcu_preempt: wait state: 3 ->state: 0x1
[ 421.190180] rcu_sched: wait state: 1 ->state: 0x1
[ 421.190646] rcu_bh: wait state: 1 ->state: 0x1
[ 421.191099] Dumping ftrace buffer:
[ 421.191446] (ftrace buffer empty)
[ 316.386056] BUG: spinlock lockup suspected on CPU#12, rcu_torture_rea/786
[ 316.386056] lock: 0xffff88007fa2cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11
[ 316.386056] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] ffff88007fa2cc00 ffff88007c0dfd10 ffffffff8132cd6c ffff88007cafcb00
[ 316.386056] ffff88007c0dfd30 ffffffff81092fb3 ffff88007fa2cc00 00000000cfc06af0
[ 316.386056] ffff88007c0dfd60 ffffffff810930db 0000000000000286 ffff88007fa2cc00
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 316.386056] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 316.386056] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 316.386056] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 316.386056] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 316.386056] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 316.386056] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 316.386056] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Sending NMI to all CPUs:
[ 316.386056] NMI backtrace for cpu 0
[ 316.386056] CPU: 0 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007c918c80 ti: ffff88007c5b8000 task.ti: ffff88007c5b8000
[ 316.386056] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
[ 316.386056] RSP: 0018:ffff88007c5bbdb0 EFLAGS: 00000286
[ 316.386056] RAX: 0000000080000000 RBX: 0000016f89221cb2 RCX: 0000000000000001
[ 316.386056] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
[ 316.386056] RBP: ffff88007c5bbdd0 R08: ffff88007c5b8000 R09: ffff88007fa0cc00
[ 316.386056] R10: ffff88007c5bbe30 R11: 0000000000000001 R12: 0000016f88f5821e
[ 316.386056] R13: 000000000034e556 R14: 0000000000000000 R15: ffffffff820d6fd0
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0
[ 316.386056] Stack:
[ 316.386056] 000000000000000a ffff88007c5bbe20 00000069b5d0f6e7 000000000000127b
[ 316.386056] ffff88007c5bbde0 ffffffff81339337 ffff88007c5bbe00 ffffffff810add86
[ 316.386056] 0000000000000000 0000000000000000 ffff88007c5bbea8 ffffffff810ad458
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 316.386056] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 316.386056] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
[ 316.386056] NMI backtrace for cpu 2
[ 316.386056] CPU: 2 PID: 794 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007cafd780 ti: ffff88007c744000 task.ti: ffff88007c744000
[ 316.386056] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
[ 316.386056] RSP: 0018:ffff88007c747db0 EFLAGS: 00000286
[ 316.386056] RAX: 0000000080000000 RBX: 0000016f8922659a RCX: 0000000000000001
[ 316.386056] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
[ 316.386056] RBP: ffff88007c747dd0 R08: ffff88007c744000 R09: ffff88007fa4cc00
[ 316.386056] R10: ffff88007c747e30 R11: 000000000000003c R12: 0000016f890566fe
[ 316.386056] R13: 0000000000351c70 R14: 0000000000000002 R15: ffffffff820d6fd0
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] 0000000000000010 ffff88007c747e20 00000069b889daa7 000000000000127b
[ 316.386056] ffff88007c747de0 ffffffff81339337 ffff88007c747e00 ffffffff810add86
[ 316.386056] 0000000000000000 0000000000000000 ffff88007c747ea8 ffffffff810ad458
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 316.386056] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 316.386056] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
[ 316.386056] NMI backtrace for cpu 3
[ 316.386056] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000
[ 316.386056] RIP: 0010:[<ffffffff81348009>] [<ffffffff81348009>] check_preemption_disabled+0x29/0xe0
[ 316.386056] RSP: 0018:ffff88007c5bfce0 EFLAGS: 00000002
[ 316.386056] RAX: 0000000000000003 RBX: ffff88007fb6cc00 RCX: 0000000000000002
[ 316.386056] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 316.386056] RBP: ffff88007c5bfce0 R08: ffffffff81a0a240 R09: ffff88007fb6cc00
[ 316.386056] R10: ffff88007c5bfe30 R11: 0000000000000400 R12: 00000000cb524812
[ 316.386056] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c5bfdd0
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] ffff88007c5bfcf0 ffffffff813480d7 ffff88007c5bfd20 ffffffff8133944d
[ 316.386056] ffff88007fb6cc00 00000000cb524812 0000000000000001 00000000cfc06af0
[ 316.386056] ffff88007c5bfd30 ffffffff8133930a ffff88007c5bfd60 ffffffff810930c7
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff813480d7>] debug_smp_processor_id+0x17/0x20
[ 316.386056] [<ffffffff8133944d>] delay_tsc+0x1d/0xc0
[ 316.386056] [<ffffffff8133930a>] __delay+0xa/0x10
[ 316.386056] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 316.386056] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 316.386056] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 316.386056] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 316.386056] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 316.386056] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: 00 00 55 65 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff 7f 74 0b 89 d8 5b 41 5c 41 5d 41 5e <5d> c3 9c 58 f6 c4 02 74 ee 89 d8 83 e0 3f 48 8d 14 c5 08 92 a0
[ 316.386056] NMI backtrace for cpu 5
[ 316.386056] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000
[ 316.386056] RIP: 0010:[<ffffffff810cd5c6>] [<ffffffff810cd5c6>] smp_call_function_single+0x106/0x140
[ 316.386056] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202
[ 316.386056] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000
[ 316.386056] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7
[ 316.386056] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002
[ 316.386056] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980
[ 316.386056] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] 0000000000000000 0000000000000000 0000000000000000 0000000000000003
[ 316.386056] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0
[ 316.386056] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff810aedbe>] sync_rcu_exp_select_cpus+0x1be/0x3d0
[ 316.386056] [<ffffffff810af980>] ? rcu_seq_end.part.52+0x30/0x30
[ 316.386056] [<ffffffff810afb9f>] synchronize_rcu_expedited.part.65+0x5f/0xb0
[ 316.386056] [<ffffffff810afc06>] synchronize_rcu_expedited+0x16/0x40
[ 316.386056] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 316.386056] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
[ 316.386056] [<ffffffff81339366>] ? __udelay+0x26/0x30
[ 316.386056] [<ffffffff810ac5a1>] rcu_torture_writer+0x441/0x6b0
[ 316.386056] [<ffffffff810ac160>] ? rcu_torture_fakewriter+0x160/0x160
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 8b 46 18 <a8> 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5 fd ff ff
[ 316.386056] NMI backtrace for cpu 7
[ 316.386056] CPU: 7 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007c91d780 ti: ffff88007c750000 task.ti: ffff88007c750000
[ 316.386056] RIP: 0010:[<ffffffff810ad377>] [<ffffffff810ad377>] rcu_torture_reader+0xc7/0x2e0
[ 316.386056] RSP: 0018:ffff88007c753e10 EFLAGS: 00000206
[ 316.386056] RAX: ffffffff81e47800 RBX: ffffffffffffffff RCX: 00000000000493e0
[ 316.386056] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81d29759
[ 316.386056] RBP: ffff88007c753ea8 R08: ffff88007c750000 R09: ffff88007faecc00
[ 316.386056] R10: ffff88007c753e30 R11: 0000000000000001 R12: 0000000000000000
[ 316.386056] R13: 00000069ba9b6ec1 R14: 000000000000127b R15: ffffffff820d6fd0
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] 0000000000000000 0000000081a0a240 33f80be8f7164cb6 00000000000003e0
[ 316.386056] 0000000000000000 ffff88007faed1b8 00000001000258ae ffffffff810ad590
[ 316.386056] 0000000000000000 ffffffff00000007 00000000ffffffff 0000000000000000
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: 8f 32 01 00 00 48 c7 c7 59 97 d2 81 4c 29 f3 e8 80 ad 29 00 48 8b 05 69 8a 02 01 48 c7 c7 59 97 d2 81 65 4a ff 04 e5 40 cb 00 00 <48> 83 78 30 01 48 83 db ff e8 5b ad 29 00 48 83 fb 0a b8 0a 00
[ 316.386056] NMI backtrace for cpu 8
[ 316.386056] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000
[ 316.386056] RIP: 0010:[<ffffffff81339455>] [<ffffffff81339455>] delay_tsc+0x25/0xc0
[ 316.386056] RSP: 0018:ffff88007fb03d78 EFLAGS: 00000006
[ 316.386056] RAX: 000000008923865a RBX: ffff88007fb6cc00 RCX: 0000000000000103
[ 316.386056] RDX: 000000000000016f RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 316.386056] RBP: ffff88007fb03d98 R08: 0000000000000000 R09: 000000000000f9ad
[ 316.386056] R10: 000000003d550944 R11: 0000000002faf04c R12: 00000000c6d627e6
[ 316.386056] R13: 0000000000000001 R14: 0000000000000008 R15: 0000000000000000
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] ffff88007fb6cc00 00000000c6d627e6 0000000000000001 00000000cfc06af0
[ 316.386056] ffff88007fb03da8 ffffffff8133930a ffff88007fb03dd8 ffffffff810930c7
[ 316.386056] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000
[ 316.386056] Call Trace:
[ 316.386056] <IRQ> \x01d [<ffffffff8133930a>] __delay+0xa/0x10
[ 316.386056] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 316.386056] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 316.386056] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 316.386056] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 316.386056] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 316.386056] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 316.386056] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 316.386056] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 316.386056] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 316.386056] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 316.386056] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 316.386056] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 316.386056] <EOI> \x01d [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 316.386056] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 316.386056] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 <48> c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43
[ 316.386056] NMI backtrace for cpu 11
[ 316.386056] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
[ 316.386056] RIP: 0010:[<ffffffff810780be>] [<ffffffff810780be>] preempt_count_add+0xe/0xc0
[ 316.386056] RSP: 0018:ffff88007fb63e30 EFLAGS: 00000086
[ 316.386056] RAX: 0000000000000001 RBX: ffff88007fb6cc00 RCX: 0000000000000103
[ 316.386056] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: 0000000000000001
[ 316.386056] RBP: ffff88007fb63e60 R08: ffff88007fb6e140 R09: 0000000000000010
[ 316.386056] R10: 0000000000000226 R11: 000000000000001f R12: 00000000cf0bff9b
[ 316.386056] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] ffff88007fb63e60 ffffffff81339448 ffff88007fb6cc00 00000000cf0bff9b
[ 316.386056] 0000000000000001 00000000cfc06af0 ffff88007fb63e70 ffffffff8133930a
[ 316.386056] ffff88007fb63ea0 ffffffff810930c7 ffff88007fb6cc00 ffffffff81e080c8
[ 316.386056] Call Trace:
[ 316.386056] <IRQ> \x01d [<ffffffff81339448>] ? delay_tsc+0x18/0xc0
[ 316.386056] [<ffffffff8133930a>] __delay+0xa/0x10
[ 316.386056] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 316.386056] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 316.386056] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 316.386056] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 316.386056] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 316.386056] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 316.386056] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 316.386056] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 316.386056] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 316.386056] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 316.386056] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 316.386056] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 316.386056] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 316.386056] [<ffffffff8104a612>] no_context+0x102/0x330
[ 316.386056] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
[ 316.386056] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 316.386056] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 316.386056] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 316.386056] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 316.386056] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 316.386056] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 316.386056] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 316.386056] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 316.386056] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 316.386056] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 316.386056] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 316.386056] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 316.386056] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 316.386056] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 316.386056] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 316.386056] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 316.386056] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 316.386056] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: c7 c7 fb dd c9 81 e8 72 f1 fd ff c6 05 a0 b3 e9 00 01 eb 9a 66 0f 1f 84 00 00 00 00 00 8b 15 02 a7 01 01 55 65 01 3d d2 2c f9 7e <48> 89 e5 53 89 fb 85 d2 75 11 65 8b 05 c1 2c f9 7e 0f b6 c0 3d
[ 316.386056] NMI backtrace for cpu 12
[ 316.386056] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000
[ 316.386056] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 316.386056] RSP: 0018:ffff88007c0dfc90 EFLAGS: 00000046
[ 316.386056] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000c
[ 316.386056] RDX: 000000000000000c RSI: 0000000000000010 RDI: 0000000000000300
[ 316.386056] RBP: ffff88007c0dfcc8 R08: 0000000000000000 R09: 000000000000f9ad
[ 316.386056] R10: ffff88007c0dff58 R11: 00000000000005d1 R12: ffffffff81f31740
[ 316.386056] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000c
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] 0000000000000086 0000000c7c0dfca0 000000000000ff40 0000000000000001
[ 316.386056] ffffffff8103fd20 00000000cfc06af0 ffff88007c0dfdd0 ffff88007c0dfcd8
[ 316.386056] ffffffff8103fd36 ffff88007c0dfd20 ffffffff81331299 ffffffff81008b50
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 316.386056] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 316.386056] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 316.386056] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 316.386056] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 316.386056] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 316.386056] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 316.386056] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 316.386056] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 316.386056] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 316.386056] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 316.386056] NMI backtrace for cpu 13
[ 316.386056] CPU: 13 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000
[ 316.386056] RIP: 0010:[<ffffffff810addac>] [<ffffffff810addac>] rcu_read_delay+0x5c/0xb0
[ 316.386056] RSP: 0018:ffff88007c0f7df0 EFLAGS: 00000202
[ 316.386056] RAX: 000000000008efd6 RBX: 0000000000000000 RCX: 0000000000001770
[ 316.386056] RDX: 000000000000032c RSI: ffff88007fbb27d8 RDI: ffff88007c0f7e20
[ 316.386056] RBP: ffff88007c0f7e00 R08: ffff88007c0f4000 R09: ffff88007fbacc00
[ 316.386056] R10: ffff88007c0f7e30 R11: 0000000000000001 R12: ffff88007c0f7e20
[ 316.386056] R13: 00000069ba9c967b R14: 000000000000127b R15: ffffffff820d6fd0
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] 0000000000000000 0000000000000000 ffff88007c0f7ea8 ffffffff810ad458
[ 316.386056] 0000000000000000 0000000081a0a240 8723d0f72accd175 0000000000000c44
[ 316.386056] 0000000000000000 ffff88007fbad1b8 00000001000258ae ffffffff810ad590
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: e8 8a b5 28 00 48 83 eb 01 75 f0 4c 89 e7 e8 6c 83 07 00 48 63 15 d9 94 02 01 48 8d 14 92 48 8d 0c 92 31 d2 48 c1 e1 04 48 f7 f1 <48> 85 d2 74 3c 65 8b 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41
[ 316.386056] NMI backtrace for cpu 14
[ 316.386056] CPU: 14 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000
[ 316.386056] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
[ 316.386056] RSP: 0018:ffff88007cb2bdb0 EFLAGS: 00000286
[ 316.386056] RAX: 0000000080000000 RBX: 0000016f89278228 RCX: 0000000000000001
[ 316.386056] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
[ 316.386056] RBP: ffff88007cb2bdd0 R08: ffff88007cb28000 R09: ffff88007fbccc00
[ 316.386056] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000016f88f62d58
[ 316.386056] R13: 0000000000352ddb R14: 000000000000000e R15: ffffffff820d6fd0
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] 0000000000000005 ffff88007cb2be20 00000069b54181d9 000000000000127b
[ 316.386056] ffff88007cb2bde0 ffffffff81339337 ffff88007cb2be00 ffffffff810add86
[ 316.386056] 0000000000000000 0000000000000000 ffff88007cb2bea8 ffffffff810ad458
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 316.386056] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 316.386056] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.386056] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
[ 316.386056] NMI backtrace for cpu 15
[ 316.386056] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14
[ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.386056] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000
[ 316.386056] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
[ 316.386056] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202
[ 316.386056] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000
[ 316.386056] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 316.386056] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000
[ 316.386056] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000
[ 316.386056] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000
[ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.386056] Stack:
[ 316.386056] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa
[ 316.386056] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7
[ 316.386056] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000
[ 316.386056] Call Trace:
[ 316.386056] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 316.386056] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 316.386056] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 316.386056] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 316.386056] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
[ 331.295005] BUG: spinlock lockup suspected on CPU#11, torture_onoff/798
[ 331.295005] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11
[ 331.295005] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] ffff88007fb6cc00 ffff88007fb63e50 ffffffff8132cd6c ffff88007cafcb00
[ 331.295005] ffff88007fb63e70 ffffffff81092fb3 ffff88007fb6cc00 00000000cfc06af0
[ 331.295005] ffff88007fb63ea0 ffffffff810930db ffff88007fb6cc00 ffffffff81e080c8
[ 331.295005] Call Trace:
[ 331.295005] <IRQ> [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 331.295005] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 331.295005] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 331.295005] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 331.295005] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 331.295005] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 331.295005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 331.295005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 331.295005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 331.295005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 331.295005] <EOI> [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 331.295005] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 331.295005] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 331.295005] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 331.295005] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 331.295005] [<ffffffff8104a612>] no_context+0x102/0x330
[ 331.295005] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
[ 331.295005] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 331.295005] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 331.295005] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 331.295005] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 331.295005] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 331.295005] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 331.295005] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 331.295005] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 331.295005] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 331.295005] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 331.295005] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 331.295005] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 331.295005] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 331.295005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 331.295005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 331.295005] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 331.295005] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 331.295005] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Sending NMI to all CPUs:
[ 331.295005] NMI backtrace for cpu 0
[ 331.295005] CPU: 0 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007c91b200 ti: ffff88007cb2c000 task.ti: ffff88007cb2c000
[ 331.295005] RIP: 0010:[<ffffffff81077f65>] [<ffffffff81077f65>] preempt_count_sub+0x15/0xa0
[ 331.295005] RSP: 0018:ffff88007cb2fe00 EFLAGS: 00000246
[ 331.295005] RAX: 000000000000000a RBX: 0000000000000000 RCX: 0000000000000000
[ 331.295005] RDX: 0000000080000001 RSI: ffffffff81d29759 RDI: 0000000000000001
[ 331.295005] RBP: ffff88007cb2fe00 R08: ffff88007cb2c000 R09: ffff88007fa0cc00
[ 331.295005] R10: ffff88007cb2fe30 R11: 0000000000000001 R12: 0000000000000000
[ 331.295005] R13: 00000069dd5e61b2 R14: 000000000000127b R15: ffffffff820d6fd0
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0
[ 331.295005] Stack:
[ 331.295005] ffff88007cb2fea8 ffffffff810ad3a5 0000000000000000 0000000081a0a240
[ 331.295005] 3c3b1143cab6927b 0000000000001d6d 0000000000000000 ffff88007fa0d3f8
[ 331.295005] 0000000100025af6 ffffffff810ad590 0000000000000000 ffffffff00000000
[ 331.295005] Call Trace:
[ 331.295005] [<ffffffff810ad3a5>] rcu_torture_reader+0xf5/0x2e0
[ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: 08 b8 ea ff ff ff 5b 5d c3 48 83 c4 08 31 c0 5b 5d c3 0f 1f 40 00 8b 0d 62 a8 01 01 55 48 89 e5 85 c9 75 1b 65 8b 15 2b 2e f9 7e <89> d1 81 e1 ff ff ff 7f 39 cf 7f 13 81 ff fe 00 00 00 76 3f f7
[ 331.295005] NMI backtrace for cpu 2
[ 331.295005] CPU: 2 PID: 794 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007cafd780 ti: ffff88007c744000 task.ti: ffff88007c744000
[ 331.295005] RIP: 0010:[<ffffffff810add72>] [<ffffffff810add72>] rcu_read_delay+0x22/0xb0
[ 331.295005] RSP: 0018:ffff88007c747df0 EFLAGS: 00000246
[ 331.295005] RAX: 0000000000000773 RBX: 0000000000000000 RCX: 000000000016e360
[ 331.295005] RDX: 0000000000044071 RSI: ffff88007fa527d8 RDI: ffff88007c747e20
[ 331.295005] RBP: ffff88007c747e00 R08: ffff88007c744000 R09: ffff88007fa4cc00
[ 331.295005] R10: ffff88007c747e30 R11: 000000000000003c R12: ffff88007c747e20
[ 331.295005] R13: 00000069dd5e7519 R14: 000000000000127b R15: ffffffff820d6fd0
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] 0000000000000000 0000000000000000 ffff88007c747ea8 ffffffff810ad458
[ 331.295005] 0000000000000000 000000007fa15380 d57caa470491aa84 0000000000001e98
[ 331.295005] 0000000000000000 ffff88007fa4d3f8 0000000100025af6 ffffffff810ad590
[ 331.295005] Call Trace:
[ 331.295005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: ff ff 5d c3 0f 1f 44 00 00 55 48 89 e5 41 54 53 49 89 fc e8 a1 83 07 00 48 63 0d 0e 95 02 01 31 d2 48 69 c9 a0 86 01 00 48 f7 f1 <48> 85 d2 75 15 bb 32 00 00 00 bf 58 89 41 00 e8 8a b5 28 00 48
[ 331.295005] NMI backtrace for cpu 3
[ 331.295005] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000
[ 331.295005] RIP: 0010:[<ffffffff81347fe0>] [<ffffffff81347fe0>] check_preemption_disabled+0x0/0xe0
[ 331.295005] RSP: 0018:ffff88007c5bfce8 EFLAGS: 00000097
[ 331.295005] RAX: 0000000000000002 RBX: ffff88007fb6cc00 RCX: 0000000000000002
[ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 331.295005] RBP: ffff88007c5bfcf0 R08: ffffffff81a0a240 R09: ffff88007fb6cc00
[ 331.295005] R10: ffff88007c5bfe30 R11: 0000000000000400 R12: 00000000cc13eda5
[ 331.295005] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c5bfdd0
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] ffffffff813480d7 ffff88007c5bfd20 ffffffff8133944d ffff88007fb6cc00
[ 331.295005] 00000000cc13eda5 0000000000000001 00000000cfc06af0 ffff88007c5bfd30
[ 331.295005] ffffffff8133930a ffff88007c5bfd60 ffffffff810930c7 0000000000000286
[ 331.295005] Call Trace:
[ 331.295005] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 331.295005] [<ffffffff8133944d>] delay_tsc+0x1d/0xc0
[ 331.295005] [<ffffffff8133930a>] __delay+0xa/0x10
[ 331.295005] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 331.295005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 331.295005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 331.295005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 331.295005] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 331.295005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: 00 00 00 00 49 89 f7 c7 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 <55> 65 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 41 54 53 65 8b 1d
[ 331.295005] NMI backtrace for cpu 5
[ 331.295005] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000
[ 331.295005] RIP: 0010:[<ffffffff810cd5c3>] [<ffffffff810cd5c3>] smp_call_function_single+0x103/0x140
[ 331.295005] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202
[ 331.295005] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000
[ 331.295005] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7
[ 331.295005] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002
[ 331.295005] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980
[ 331.295005] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] 0000000000000000 0000000000000000 0000000000000000 0000000000000003
[ 331.295005] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0
[ 331.295005] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009
[ 331.295005] Call Trace:
[ 331.295005] [<ffffffff810aedbe>] sync_rcu_exp_select_cpus+0x1be/0x3d0
[ 331.295005] [<ffffffff810af980>] ? rcu_seq_end.part.52+0x30/0x30
[ 331.295005] [<ffffffff810afb9f>] synchronize_rcu_expedited.part.65+0x5f/0xb0
[ 331.295005] [<ffffffff810afc06>] synchronize_rcu_expedited+0x16/0x40
[ 331.295005] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 331.295005] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
[ 331.295005] [<ffffffff81339366>] ? __udelay+0x26/0x30
[ 331.295005] [<ffffffff810ac5a1>] rcu_torture_writer+0x441/0x6b0
[ 331.295005] [<ffffffff810ac160>] ? rcu_torture_fakewriter+0x160/0x160
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: c6 05 f9 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 <8b> 46 18 a8 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5
[ 331.295005] NMI backtrace for cpu 7
[ 331.295005] CPU: 7 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007c91d780 ti: ffff88007c750000 task.ti: ffff88007c750000
[ 331.295005] RIP: 0010:[<ffffffff81347fe8>] [<ffffffff81347fe8>] check_preemption_disabled+0x8/0xe0
[ 331.295005] RSP: 0018:ffff88007c753d90 EFLAGS: 00000246
[ 331.295005] RAX: 0000000080000001 RBX: 0000017001a4f518 RCX: 0000000000000001
[ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 331.295005] RBP: ffff88007c753da0 R08: ffff88007c750000 R09: ffff88007faecc00
[ 331.295005] R10: ffff88007c753e30 R11: 0000000000000001 R12: 00000170019e5d88
[ 331.295005] R13: 0000000000352fc5 R14: 0000000000000007 R15: ffffffff820d6fd0
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] ffff88007c753da0 ffffffff813480d7 ffff88007c753dd0 ffffffff81339472
[ 331.295005] 000000000000000c ffff88007c753e20 00000069db15b06d 000000000000127b
[ 331.295005] ffff88007c753de0 ffffffff81339337 ffff88007c753e00 ffffffff810add86
[ 331.295005] Call Trace:
[ 331.295005] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 331.295005] [<ffffffff81339472>] delay_tsc+0x42/0xc0
[ 331.295005] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 331.295005] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 331.295005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 65 8b 05 a8 2d cc 7e <48> 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff
[ 331.295005] NMI backtrace for cpu 8
[ 331.295005] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000
[ 331.295005] RIP: 0010:[<ffffffff810930b9>] [<ffffffff810930b9>] do_raw_spin_lock+0x79/0x150
[ 331.295005] RSP: 0018:ffff88007fb03db8 EFLAGS: 00000002
[ 331.295005] RAX: 0000000000000001 RBX: ffff88007fb6cc00 RCX: 0000000000000103
[ 331.295005] RDX: 0000000080000103 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
[ 331.295005] RBP: ffff88007fb03dd8 R08: 0000000000000000 R09: 000000000000f9ad
[ 331.295005] R10: 000000003d550944 R11: 0000000002faf04c R12: 00000000c7b4e675
[ 331.295005] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000
[ 331.295005] ffff88007fb03df0 ffffffff818b3fda 000000000000000b ffff88007fb03e30
[ 331.295005] ffffffff810b96b6 0000000000000286 ffffffff81e4e828 000000fc640b0d4c
[ 331.295005] Call Trace:
[ 331.295005] <IRQ> \x01d [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 331.295005] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 331.295005] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 331.295005] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 331.295005] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 331.295005] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 331.295005] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 331.295005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 331.295005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 331.295005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 331.295005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 331.295005] <EOI> \x01d [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 331.295005] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 331.295005] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: c0 74 67 4c 69 35 b4 0f d8 00 e8 03 00 00 45 31 e4 41 bd 01 00 00 00 4d 85 f6 74 22 8b 03 85 c0 75 09 f0 44 0f b1 2b 85 c0 74 3f <bf> 01 00 00 00 49 83 c4 01 e8 39 62 2a 00 4d 39 e6 75 de 48 c7
[ 331.295005] NMI backtrace for cpu 11
[ 331.295005] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
[ 331.295005] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 331.295005] RSP: 0018:ffff88007fb63dd0 EFLAGS: 00000046
[ 331.295005] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000b
[ 331.295005] RDX: 000000000000000b RSI: 0000000000000010 RDI: 0000000000000300
[ 331.295005] RBP: ffff88007fb63e08 R08: 0000000000000000 R09: 000000000000f9ad
[ 331.295005] R10: ffff88007c6f7f58 R11: 0000000000000773 R12: ffffffff81f31740
[ 331.295005] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000b
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] 0000000000000082 0000000b7fb63de0 000000000000ff40 0000000000000001
[ 331.295005] ffffffff8103fd20 00000000cfc06af0 0000000000000000 ffff88007fb63e18
[ 331.295005] ffffffff8103fd36 ffff88007fb63e60 ffffffff81331299 ffffffff81008b50
[ 331.295005] Call Trace:
[ 331.295005] <IRQ> \x01d [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 331.295005] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 331.295005] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 331.295005] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 331.295005] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 331.295005] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 331.295005] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 331.295005] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 331.295005] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 331.295005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 331.295005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 331.295005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 331.295005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 331.295005] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 331.295005] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 331.295005] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 331.295005] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 331.295005] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 331.295005] [<ffffffff8104a612>] no_context+0x102/0x330
[ 331.295005] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
[ 331.295005] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 331.295005] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 331.295005] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 331.295005] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 331.295005] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 331.295005] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 331.295005] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 331.295005] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 331.295005] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 331.295005] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 331.295005] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 331.295005] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 331.295005] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 331.295005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 331.295005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 331.295005] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 331.295005] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 331.295005] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 331.295005] NMI backtrace for cpu 12
[ 331.295005] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000
[ 331.295005] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 331.295005] RSP: 0018:ffff88007c0dfd18 EFLAGS: 00000002
[ 331.295005] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
[ 331.295005] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 331.295005] RBP: ffff88007c0dfd30 R08: 000000000000062f R09: 0000000000000743
[ 331.295005] R10: ffff88007c0dff58 R11: 0000000000000743 R12: 00000000cfc06af0
[ 331.295005] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c0dfdd0
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] ffff88007fa2cc00 00000000cfc06af0 0000000000000001 ffff88007c0dfd60
[ 331.295005] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
[ 331.295005] 000000000000cc00 ffff88007c0dfd80 ffffffff818b401f 0000000000000001
[ 331.295005] Call Trace:
[ 331.295005] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 331.295005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 331.295005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 331.295005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 331.295005] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 331.295005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 331.295005] NMI backtrace for cpu 13
[ 331.295005] CPU: 13 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000
[ 331.295005] RIP: 0010:[<ffffffff810780be>] [<ffffffff810780be>] preempt_count_add+0xe/0xc0
[ 331.295005] RSP: 0018:ffff88007c0f7da0 EFLAGS: 00000282
[ 331.295005] RAX: 0000000080000000 RBX: 0000017001aa6260 RCX: 0000000000000001
[ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: 0000000000000001
[ 331.295005] RBP: ffff88007c0f7dd0 R08: ffff88007c0f4000 R09: ffff88007fbacc00
[ 331.295005] R10: ffff88007c0f7e30 R11: 0000000000000001 R12: 0000017001a4d5c0
[ 331.295005] R13: 00000000000aa2c1 R14: 000000000000000d R15: ffffffff820d6fd0
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] ffff88007c0f7dd0 ffffffff8133946d 0000000000000000 ffff88007c0f7e20
[ 331.295005] 00000069dd5ea44f 000000000000127b ffff88007c0f7de0 ffffffff81339337
[ 331.295005] ffff88007c0f7e00 ffffffff810addf7 0000000000000000 0000000000000000
[ 331.295005] Call Trace:
[ 331.295005] [<ffffffff8133946d>] ? delay_tsc+0x3d/0xc0
[ 331.295005] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 331.295005] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
[ 331.295005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: c7 c7 fb dd c9 81 e8 72 f1 fd ff c6 05 a0 b3 e9 00 01 eb 9a 66 0f 1f 84 00 00 00 00 00 8b 15 02 a7 01 01 55 65 01 3d d2 2c f9 7e <48> 89 e5 53 89 fb 85 d2 75 11 65 8b 05 c1 2c f9 7e 0f b6 c0 3d
[ 331.295005] NMI backtrace for cpu 14
[ 331.295005] CPU: 14 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000
[ 331.295005] RIP: 0010:[<ffffffff81077f83>] [<ffffffff81077f83>] preempt_count_sub+0x33/0xa0
[ 331.295005] RSP: 0018:ffff88007cb2be08 EFLAGS: 00000297
[ 331.295005] RAX: 000000000000000a RBX: 0000000000000000 RCX: 0000000000000001
[ 331.295005] RDX: 0000000080000001 RSI: ffffffff81d29759 RDI: 00000000ffffffff
[ 331.295005] RBP: ffff88007cb2bea8 R08: ffff88007cb28000 R09: ffff88007fbccc00
[ 331.295005] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000000000000000
[ 331.295005] R13: 00000069dd60520e R14: 000000000000127b R15: ffffffff820d6fd0
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] ffffffff810ad3a5 0000000000000000 0000000000015380 9abda0ee3aa4a492
[ 331.295005] 0000000000001b28 0000000000000000 ffff88007fbcd3f8 0000000100025af6
[ 331.295005] ffffffff810ad590 0000000000000000 ffffffff0000000e 00000000ffffffff
[ 331.295005] Call Trace:
[ 331.295005] [<ffffffff810ad3a5>] ? rcu_torture_reader+0xf5/0x2e0
[ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 331.295005] Code: 89 e5 85 c9 75 1b 65 8b 15 2b 2e f9 7e 89 d1 81 e1 ff ff ff 7f 39 cf 7f 13 81 ff fe 00 00 00 76 3f f7 df 65 01 3d 0e 2e f9 7e 5d <c3> e8 b7 34 2c 00 85 c0 74 f5 8b 15 0d 09 0a 01 85 d2 75 eb 48
[ 331.295005] NMI backtrace for cpu 15
[ 331.295005] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14
[ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 331.295005] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000
[ 331.295005] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
[ 331.295005] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202
[ 331.295005] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000
[ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 331.295005] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000
[ 331.295005] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000
[ 331.295005] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000
[ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 331.295005] Stack:
[ 331.295005] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa
[ 331.295005] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7
[ 331.295005] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000
[ 331.295005] Call Trace:
[ 331.295005] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 331.295005] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 331.295005] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 331.295005] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 331.295005] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
[ 316.338053] BUG: spinlock lockup suspected on CPU#3, rcu_torture_rea/782
[ 316.338053] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11
[ 316.338053] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] ffff88007fb6cc00 ffff88007c5bfd10 ffffffff8132cd6c ffff88007cafcb00
[ 316.338053] ffff88007c5bfd30 ffffffff81092fb3 ffff88007fb6cc00 00000000cfc06af0
[ 316.338053] ffff88007c5bfd60 ffffffff810930db 0000000000000286 ffff88007fb6cc00
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 316.338053] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 316.338053] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 316.338053] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 316.338053] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 316.338053] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 316.338053] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 316.338053] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Sending NMI to all CPUs:
[ 316.338053] NMI backtrace for cpu 0
[ 316.338053] CPU: 0 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007c75be80 ti: ffff88007c774000 task.ti: ffff88007c774000
[ 316.338053] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
[ 316.338053] RSP: 0018:ffff88007c777df0 EFLAGS: 00000202
[ 316.338053] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 316.338053] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb
[ 316.338053] RBP: ffff88007c777e00 R08: ffff88007c774000 R09: ffff88007fa0cc00
[ 316.338053] R10: ffff88007c777e30 R11: 000000000000005a R12: 0000000000000000
[ 316.338053] R13: 0000006a519a813f R14: 000000000000127b R15: ffffffff820d6fd0
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0
[ 316.338053] Stack:
[ 316.338053] ffffffff81126479 0000000000000000 ffff88007c777ea8 ffffffff810ad3ce
[ 316.338053] 0000000000000000 0000000081a0a240 44bdc3e2f3607f45 0000000000001066
[ 316.338053] dead000000000200 0000000000000000 0000000100026293 ffffffff810ad590
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
[ 316.338053] NMI backtrace for cpu 2
[ 316.338053] CPU: 2 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000
[ 316.338053] RIP: 0010:[<ffffffff81126474>] [<ffffffff81126474>] stutter_wait+0x44/0xc0
[ 316.338053] RSP: 0018:ffff88007c0f7df8 EFLAGS: 00000202
[ 316.338053] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 316.338053] RBP: ffff88007c0f7e00 R08: ffff88007c0f4000 R09: ffff88007fa4cc00
[ 316.338053] R10: ffff88007c0f7e30 R11: 000000000000005a R12: 0000000000000000
[ 316.338053] R13: 0000006a51d7a937 R14: 000000000000127b R15: ffffffff820d6fd0
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] 0000000000000000 ffff88007c0f7ea8 ffffffff810ad3ce 0000000000000000
[ 316.338053] 0000000081a0a240 e1c9c2832fdf50b8 00000000000010f6 dead000000000200
[ 316.338053] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: 75 12 48 8b 05 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 <e8> c7 94 78 00 8b 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff
[ 316.338053] NMI backtrace for cpu 3
[ 316.338053] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000
[ 316.338053] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 316.338053] RSP: 0018:ffff88007c5bfc90 EFLAGS: 00000046
[ 316.338053] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000003
[ 316.338053] RDX: 0000000000000003 RSI: 0000000000000010 RDI: 0000000000000300
[ 316.338053] RBP: ffff88007c5bfcc8 R08: 0000000000000000 R09: 000000000000f9ad
[ 316.338053] R10: ffff88007c5bff58 R11: 00000000000008fa R12: ffffffff81f31740
[ 316.338053] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000003
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] 0000000000000086 000000037c5bfca0 000000000000ff40 0000000000000001
[ 316.338053] ffffffff8103fd20 00000000cfc06af0 ffff88007c5bfdd0 ffff88007c5bfcd8
[ 316.338053] ffffffff8103fd36 ffff88007c5bfd20 ffffffff81331299 ffffffff81008b50
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 316.338053] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 316.338053] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 316.338053] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 316.338053] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 316.338053] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 316.338053] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 316.338053] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 316.338053] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 316.338053] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 316.338053] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 316.338053] NMI backtrace for cpu 5
[ 316.338053] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000
[ 316.338053] RIP: 0010:[<ffffffff810cd5c6>] [<ffffffff810cd5c6>] smp_call_function_single+0x106/0x140
[ 316.338053] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202
[ 316.338053] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000
[ 316.338053] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7
[ 316.338053] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002
[ 316.338053] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980
[ 316.338053] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] 0000000000000000 0000000000000000 0000000000000000 0000000000000003
[ 316.338053] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0
[ 316.338053] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff810aedbe>] sync_rcu_exp_select_cpus+0x1be/0x3d0
[ 316.338053] [<ffffffff810af980>] ? rcu_seq_end.part.52+0x30/0x30
[ 316.338053] [<ffffffff810afb9f>] synchronize_rcu_expedited.part.65+0x5f/0xb0
[ 316.338053] [<ffffffff810afc06>] synchronize_rcu_expedited+0x16/0x40
[ 316.338053] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 316.338053] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
[ 316.338053] [<ffffffff81339366>] ? __udelay+0x26/0x30
[ 316.338053] [<ffffffff810ac5a1>] rcu_torture_writer+0x441/0x6b0
[ 316.338053] [<ffffffff810ac160>] ? rcu_torture_fakewriter+0x160/0x160
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 8b 46 18 <a8> 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5 fd ff ff
[ 316.338053] NMI backtrace for cpu 7
[ 316.338053] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000
[ 316.338053] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
[ 316.338053] RSP: 0018:ffff88007cb2bdf8 EFLAGS: 00000246
[ 316.338053] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 316.338053] RBP: ffff88007cb2be00 R08: ffff88007cb28000 R09: ffff88007faecc00
[ 316.338053] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000000000000000
[ 316.338053] R13: 0000006a51d7a959 R14: 000000000000127b R15: ffffffff820d6fd0
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] 0000000000000000 ffff88007cb2bea8 ffffffff810ad3ce 0000000000000000
[ 316.338053] 0000000000015380 938d1d05a9edd694 00000000000000f6 dead000000000200
[ 316.338053] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
[ 316.338053] NMI backtrace for cpu 8
[ 316.338053] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000
[ 316.338053] RIP: 0010:[<ffffffff81339455>] [<ffffffff81339455>] delay_tsc+0x25/0xc0
[ 316.338053] RSP: 0018:ffff88007fb03d78 EFLAGS: 00000006
[ 316.338053] RAX: 0000000032ed229e RBX: ffff88007fb6cc00 RCX: 0000000000000103
[ 316.338053] RDX: 0000000000000172 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 316.338053] RBP: ffff88007fb03d98 R08: 0000000000000000 R09: 000000000000f9ad
[ 316.338053] R10: 000000003d550944 R11: 0000000002faf04c R12: 00000000cb2cbf89
[ 316.338053] R13: 0000000000000001 R14: 0000000000000008 R15: 0000000000000000
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] ffff88007fb6cc00 00000000cb2cbf89 0000000000000001 00000000cfc06af0
[ 316.338053] ffff88007fb03da8 ffffffff8133930a ffff88007fb03dd8 ffffffff810930c7
[ 316.338053] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000
[ 316.338053] Call Trace:
[ 316.338053] <IRQ> \x01d [<ffffffff8133930a>] __delay+0xa/0x10
[ 316.338053] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 316.338053] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 316.338053] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 316.338053] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 316.338053] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 316.338053] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 316.338053] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 316.338053] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 316.338053] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 316.338053] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 316.338053] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 316.338053] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 316.338053] <EOI> \x01d [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 316.338053] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 <48> c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43
[ 316.338053] NMI backtrace for cpu 11
[ 316.338053] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
[ 316.338053] RIP: 0010:[<ffffffff810920b1>] [<ffffffff810920b1>] queued_spin_lock_slowpath+0x171/0x1a0
[ 316.338053] RSP: 0018:ffff88007fb63e58 EFLAGS: 00000002
[ 316.338053] RAX: 0000000000000101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
[ 316.338053] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 316.338053] RBP: ffff88007fb63e70 R08: 000000000000062f R09: 00000000000008e3
[ 316.338053] R10: ffff88007c6f7f58 R11: 00000000000008e3 R12: 00000000cfc06af0
[ 316.338053] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] ffff88007fb6cc00 00000000cfc06af0 0000000000000001 ffff88007fb63ea0
[ 316.338053] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
[ 316.338053] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
[ 316.338053] Call Trace:
[ 316.338053] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 316.338053] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 316.338053] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 316.338053] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 316.338053] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 316.338053] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 316.338053] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 316.338053] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 316.338053] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 316.338053] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 316.338053] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 316.338053] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 316.338053] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 316.338053] [<ffffffff8104a612>] no_context+0x102/0x330
[ 316.338053] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
[ 316.338053] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 316.338053] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 316.338053] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 316.338053] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 316.338053] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 316.338053] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 316.338053] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 316.338053] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 316.338053] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 316.338053] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 316.338053] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 316.338053] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 316.338053] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 316.338053] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 316.338053] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 316.338053] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 316.338053] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 316.338053] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 8b 03 <84> c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 f3 90
[ 316.338053] NMI backtrace for cpu 12
[ 316.338053] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000
[ 316.338053] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 316.338053] RSP: 0018:ffff88007c0dfd18 EFLAGS: 00000002
[ 316.338053] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
[ 316.338053] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 316.338053] RBP: ffff88007c0dfd30 R08: 000000000000062f R09: 0000000000000743
[ 316.338053] R10: ffff88007c0dff58 R11: 0000000000000743 R12: 00000000cfc06af0
[ 316.338053] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c0dfdd0
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] ffff88007fa2cc00 00000000cfc06af0 0000000000000001 ffff88007c0dfd60
[ 316.338053] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
[ 316.338053] 000000000000cc00 ffff88007c0dfd80 ffffffff818b401f 0000000000000001
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 316.338053] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 316.338053] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 316.338053] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 316.338053] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 316.338053] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 316.338053] NMI backtrace for cpu 13
[ 316.338053] CPU: 13 PID: 793 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007caf8c80 ti: ffff88007c740000 task.ti: ffff88007c740000
[ 316.338053] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
[ 316.338053] RSP: 0018:ffff88007c743df8 EFLAGS: 00000246
[ 316.338053] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 316.338053] RBP: ffff88007c743e00 R08: ffff88007c740000 R09: ffff88007fbacc00
[ 316.338053] R10: ffff88007c743e30 R11: 0000000000000001 R12: 0000000000000000
[ 316.338053] R13: 0000006a51d78b8c R14: 000000000000127b R15: ffffffff820d6fd0
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] 0000000000000000 ffff88007c743ea8 ffffffff810ad3ce 0000000000000000
[ 316.338053] 0000000081a0a240 9db61e92c238bec5 00000000000000a4 dead000000000200
[ 316.338053] 0000000000000000 0000000100026297 ffffffff810ad590 0000000000000000
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
[ 316.338053] NMI backtrace for cpu 14
[ 316.338053] CPU: 14 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007c918c80 ti: ffff88007c5b8000 task.ti: ffff88007c5b8000
[ 316.338053] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
[ 316.338053] RSP: 0018:ffff88007c5bbdf0 EFLAGS: 00000202
[ 316.338053] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 316.338053] RBP: ffff88007c5bbe00 R08: ffff88007c5b8000 R09: ffff88007fbccc00
[ 316.338053] R10: ffff88007c5bbe30 R11: 0000000000000001 R12: 0000000000000000
[ 316.338053] R13: 0000006a51d78bd7 R14: 000000000000127b R15: ffffffff820d6fd0
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] ffffffff81126479 0000000000000000 ffff88007c5bbea8 ffffffff810ad3ce
[ 316.338053] 0000000000000000 0000000081a0a240 1f40bd867ce4d9c3 0000000000000d0d
[ 316.338053] dead000000000200 0000000000000000 0000000100026297 ffffffff810ad590
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 316.338053] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
[ 316.338053] NMI backtrace for cpu 15
[ 316.338053] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14
[ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 316.338053] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000
[ 316.338053] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
[ 316.338053] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202
[ 316.338053] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000
[ 316.338053] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 316.338053] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000
[ 316.338053] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000
[ 316.338053] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000
[ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 316.338053] Stack:
[ 316.338053] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa
[ 316.338053] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7
[ 316.338053] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000
[ 316.338053] Call Trace:
[ 316.338053] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 316.338053] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 316.338053] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 316.338053] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 316.338053] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
[ 311.122004] BUG: spinlock lockup suspected on CPU#8, rcu_torture_rea/789
[ 311.122004] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11
[ 311.122004] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] ffff88007fb6cc00 ffff88007fb03d88 ffffffff8132cd6c ffff88007cafcb00
[ 311.122004] ffff88007fb03da8 ffffffff81092fb3 ffff88007fb6cc00 00000000cfc06af0
[ 311.122004] ffff88007fb03dd8 ffffffff810930db ffff88007fb6cc00 ffffffff820d8c80
[ 311.122004] Call Trace:
[ 311.122004] <IRQ> [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 311.122004] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 311.122004] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 311.122004] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 311.122004] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 311.122004] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 311.122004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 311.122004] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 311.122004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 311.122004] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 311.122004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 311.122004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 311.122004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 311.122004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 311.122004] <EOI> [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Sending NMI to all CPUs:
[ 311.122004] NMI backtrace for cpu 0
[ 311.122004] CPU: 0 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007c75be80 ti: ffff88007c774000 task.ti: ffff88007c774000
[ 311.122004] RIP: 0010:[<ffffffff818af94b>] [<ffffffff818af94b>] _cond_resched+0xb/0x20
[ 311.122004] RSP: 0018:ffff88007c777df0 EFLAGS: 00000286
[ 311.122004] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 311.122004] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb
[ 311.122004] RBP: ffff88007c777e00 R08: ffff88007c774000 R09: ffff88007fa0cc00
[ 311.122004] R10: ffff88007c777e30 R11: 000000000000005a R12: 0000000000000000
[ 311.122004] R13: 0000006a519a813f R14: 000000000000127b R15: ffffffff820d6fd0
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0
[ 311.122004] Stack:
[ 311.122004] ffffffff81126479 0000000000000000 ffff88007c777ea8 ffffffff810ad3ce
[ 311.122004] 0000000000000000 0000000081a0a240 44bdc3e2f3607f45 0000000000001066
[ 311.122004] dead000000000200 0000000000000000 0000000100026293 ffffffff810ad590
[ 311.122004] Call Trace:
[ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 65 8b 15 49 b4 75 7e 85 d2 74 03 <31> c0 c3 55 48 89 e5 e8 79 ff ff ff b8 01 00 00 00 5d c3 66 90
[ 311.122004] NMI backtrace for cpu 2
[ 311.122004] CPU: 2 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000
[ 311.122004] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
[ 311.122004] RSP: 0018:ffff88007c0f7df8 EFLAGS: 00000246
[ 311.122004] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 311.122004] RBP: ffff88007c0f7e00 R08: ffff88007c0f4000 R09: ffff88007fa4cc00
[ 311.122004] R10: ffff88007c0f7e30 R11: 000000000000005a R12: 0000000000000000
[ 311.122004] R13: 0000006a51d7a937 R14: 000000000000127b R15: ffffffff820d6fd0
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] 0000000000000000 ffff88007c0f7ea8 ffffffff810ad3ce 0000000000000000
[ 311.122004] 0000000081a0a240 e1c9c2832fdf50b8 00000000000010f6 dead000000000200
[ 311.122004] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000
[ 311.122004] Call Trace:
[ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
[ 311.122004] NMI backtrace for cpu 3
[ 311.122004] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000
[ 311.122004] RIP: 0010:[<ffffffff81092067>] [<ffffffff81092067>] queued_spin_lock_slowpath+0x127/0x1a0
[ 311.122004] RSP: 0018:ffff88007c5bfd18 EFLAGS: 00000002
[ 311.122004] RAX: 0000000000000000 RBX: ffff88007fb6cc00 RCX: ffff88007fa75e80
[ 311.122004] RDX: 0000000000100101 RSI: ffffffff81ca0d44 RDI: 0000000000100000
[ 311.122004] RBP: ffff88007c5bfd30 R08: 0000000000000000 R09: 0000000000000a64
[ 311.122004] R10: ffff88007c5bff58 R11: 0000000000000a64 R12: 0000000000000000
[ 311.122004] R13: ffff88007fa75e80 R14: 00000000cfc06af0 R15: ffff88007c5bfdd0
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] ffff88007fb6cc00 00000000cfc06af0 0000000000000001 ffff88007c5bfd60
[ 311.122004] ffffffff81093185 0000000000000286 ffff88007fb6cc00 ffff88007fb6cc00
[ 311.122004] 000000000000cc00 ffff88007c5bfd80 ffffffff818b401f 000000000000000b
[ 311.122004] Call Trace:
[ 311.122004] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 311.122004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 311.122004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 311.122004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 311.122004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 311.122004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 <8b> 13 66 85 d2 75 f7 be 01 00 00 00 eb 10 89 d0 f0 0f b1 33 39
[ 311.122004] NMI backtrace for cpu 5
[ 311.122004] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000
[ 311.122004] RIP: 0010:[<ffffffff810cd5c3>] [<ffffffff810cd5c3>] smp_call_function_single+0x103/0x140
[ 311.122004] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202
[ 311.122004] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000
[ 311.122004] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7
[ 311.122004] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002
[ 311.122004] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980
[ 311.122004] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] 0000000000000000 0000000000000000 0000000000000000 0000000000000003
[ 311.122004] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0
[ 311.122004] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009
[ 311.122004] Call Trace:
[ 311.122004] [<ffffffff810aedbe>] sync_rcu_exp_select_cpus+0x1be/0x3d0
[ 311.122004] [<ffffffff810af980>] ? rcu_seq_end.part.52+0x30/0x30
[ 311.122004] [<ffffffff810afb9f>] synchronize_rcu_expedited.part.65+0x5f/0xb0
[ 311.122004] [<ffffffff810afc06>] synchronize_rcu_expedited+0x16/0x40
[ 311.122004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 311.122004] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
[ 311.122004] [<ffffffff81339366>] ? __udelay+0x26/0x30
[ 311.122004] [<ffffffff810ac5a1>] rcu_torture_writer+0x441/0x6b0
[ 311.122004] [<ffffffff810ac160>] ? rcu_torture_fakewriter+0x160/0x160
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: c6 05 f9 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 <8b> 46 18 a8 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5
[ 311.122004] NMI backtrace for cpu 7
[ 311.122004] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000
[ 311.122004] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
[ 311.122004] RSP: 0018:ffff88007cb2bdf8 EFLAGS: 00000246
[ 311.122004] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 311.122004] RBP: ffff88007cb2be00 R08: ffff88007cb28000 R09: ffff88007faecc00
[ 311.122004] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000000000000000
[ 311.122004] R13: 0000006a51d7a959 R14: 000000000000127b R15: ffffffff820d6fd0
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] 0000000000000000 ffff88007cb2bea8 ffffffff810ad3ce 0000000000000000
[ 311.122004] 0000000000015380 938d1d05a9edd694 00000000000000f6 dead000000000200
[ 311.122004] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000
[ 311.122004] Call Trace:
[ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
[ 311.122004] NMI backtrace for cpu 8
[ 311.122004] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000
[ 311.122004] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 311.122004] RSP: 0018:ffff88007fb03d08 EFLAGS: 00000046
[ 311.122004] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000008
[ 311.122004] RDX: 0000000000000008 RSI: 0000000000000010 RDI: 0000000000000300
[ 311.122004] RBP: ffff88007fb03d40 R08: 0000000000000000 R09: 000000000000f9ad
[ 311.122004] R10: ffff88007c0f3f58 R11: 0000000000000a84 R12: ffffffff81f31740
[ 311.122004] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000008
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] 0000000000000082 000000087fb03d18 000000000000ff40 0000000000000001
[ 311.122004] ffffffff8103fd20 00000000cfc06af0 0000000000000000 ffff88007fb03d50
[ 311.122004] ffffffff8103fd36 ffff88007fb03d98 ffffffff81331299 ffffffff81008b50
[ 311.122004] Call Trace:
[ 311.122004] <IRQ> \x01d [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 311.122004] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 311.122004] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 311.122004] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 311.122004] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 311.122004] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 311.122004] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 311.122004] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 311.122004] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 311.122004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 311.122004] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 311.122004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 311.122004] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 311.122004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 311.122004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 311.122004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 311.122004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 311.122004] <EOI> \x01d [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 311.122004] NMI backtrace for cpu 11
[ 311.122004] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
[ 311.122004] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 311.122004] RSP: 0018:ffff88007fb63e58 EFLAGS: 00000002
[ 311.122004] RAX: 0000000000100101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
[ 311.122004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 311.122004] RBP: ffff88007fb63e70 R08: 000000000000062f R09: 00000000000008e3
[ 311.122004] R10: ffff88007c6f7f58 R11: 00000000000008e3 R12: 00000000cfc06af0
[ 311.122004] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] ffff88007fb6cc00 00000000cfc06af0 0000000000000001 ffff88007fb63ea0
[ 311.122004] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
[ 311.122004] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
[ 311.122004] Call Trace:
[ 311.122004] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 311.122004] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 311.122004] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 311.122004] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 311.122004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 311.122004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 311.122004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 311.122004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 311.122004] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 311.122004] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 311.122004] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 311.122004] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 311.122004] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 311.122004] [<ffffffff8104a612>] no_context+0x102/0x330
[ 311.122004] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
[ 311.122004] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 311.122004] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 311.122004] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 311.122004] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 311.122004] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 311.122004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 311.122004] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 311.122004] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 311.122004] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 311.122004] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 311.122004] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 311.122004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 311.122004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 311.122004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 311.122004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 311.122004] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 311.122004] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 311.122004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 311.122004] NMI backtrace for cpu 12
[ 311.122004] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000
[ 311.122004] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 311.122004] RSP: 0018:ffff88007c0dfd18 EFLAGS: 00000002
[ 311.122004] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
[ 311.122004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 311.122004] RBP: ffff88007c0dfd30 R08: 000000000000062f R09: 0000000000000743
[ 311.122004] R10: ffff88007c0dff58 R11: 0000000000000743 R12: 00000000cfc06af0
[ 311.122004] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c0dfdd0
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] ffff88007fa2cc00 00000000cfc06af0 0000000000000001 ffff88007c0dfd60
[ 311.122004] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
[ 311.122004] 000000000000cc00 ffff88007c0dfd80 ffffffff818b401f 0000000000000001
[ 311.122004] Call Trace:
[ 311.122004] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 311.122004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 311.122004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 311.122004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 311.122004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 311.122004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 311.122004] NMI backtrace for cpu 13
[ 311.122004] CPU: 13 PID: 793 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007caf8c80 ti: ffff88007c740000 task.ti: ffff88007c740000
[ 311.122004] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
[ 311.122004] RSP: 0018:ffff88007c743df0 EFLAGS: 00000202
[ 311.122004] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 311.122004] RBP: ffff88007c743e00 R08: ffff88007c740000 R09: ffff88007fbacc00
[ 311.122004] R10: ffff88007c743e30 R11: 0000000000000001 R12: 0000000000000000
[ 311.122004] R13: 0000006a51d78b8c R14: 000000000000127b R15: ffffffff820d6fd0
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] ffffffff81126479 0000000000000000 ffff88007c743ea8 ffffffff810ad3ce
[ 311.122004] 0000000000000000 0000000081a0a240 9db61e92c238bec5 00000000000000a4
[ 311.122004] dead000000000200 0000000000000000 0000000100026297 ffffffff810ad590
[ 311.122004] Call Trace:
[ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
[ 311.122004] NMI backtrace for cpu 14
[ 311.122004] CPU: 14 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007c918c80 ti: ffff88007c5b8000 task.ti: ffff88007c5b8000
[ 311.122004] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
[ 311.122004] RSP: 0018:ffff88007c5bbdf0 EFLAGS: 00000202
[ 311.122004] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 311.122004] RBP: ffff88007c5bbe00 R08: ffff88007c5b8000 R09: ffff88007fbccc00
[ 311.122004] R10: ffff88007c5bbe30 R11: 0000000000000001 R12: 0000000000000000
[ 311.122004] R13: 0000006a51d78bd7 R14: 000000000000127b R15: ffffffff820d6fd0
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] ffffffff81126479 0000000000000000 ffff88007c5bbea8 ffffffff810ad3ce
[ 311.122004] 0000000000000000 0000000081a0a240 1f40bd867ce4d9c3 0000000000000d0d
[ 311.122004] dead000000000200 0000000000000000 0000000100026297 ffffffff810ad590
[ 311.122004] Call Trace:
[ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 311.122004] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
[ 311.122004] NMI backtrace for cpu 15
[ 311.122004] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14
[ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 311.122004] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000
[ 311.122004] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
[ 311.122004] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202
[ 311.122004] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000
[ 311.122004] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 311.122004] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000
[ 311.122004] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000
[ 311.122004] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000
[ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 311.122004] Stack:
[ 311.122004] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa
[ 311.122004] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7
[ 311.122004] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000
[ 311.122004] Call Trace:
[ 311.122004] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 311.122004] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 311.122004] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 311.122004] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 311.122004] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
[ 462.372004] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 462.372004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=48568
[ 462.372004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=48568
[ 462.372004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=48568
[ 462.372004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=48569
[ 462.372004] (detected by 13, t=147016 jiffies, g=4731, c=4730, q=2)
[ 462.372004] Task dump for CPU 3:
[ 462.372004] rcu_torture_rea R running task 14064 782 2 0x00000008
[ 462.372004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
[ 462.372004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
[ 462.372004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
[ 462.372004] Call Trace:
[ 462.372004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 462.372004] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
[ 462.372004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 462.372004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 462.372004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 462.372004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 462.372004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 462.372004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 462.372004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 462.372004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 462.372004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 462.372004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 462.372004] Task dump for CPU 8:
[ 462.372004] rcu_torture_rea R running task 14760 789 2 0x00000008
[ 462.372004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
[ 462.372004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
[ 462.372004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
[ 462.372004] Call Trace:
[ 462.372004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
[ 462.372004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
[ 462.372004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
[ 462.372004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 462.372004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 462.372004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
[ 462.372004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 462.372004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 462.372004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 462.372004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 462.372004] Task dump for CPU 11:
[ 462.372004] torture_onoff R running task 13416 798 2 0x00000008
[ 462.372004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
[ 462.372004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
[ 462.372004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
[ 462.372004] Call Trace:
[ 462.372004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
[ 462.372004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
[ 462.372004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
[ 462.372004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
[ 462.372004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
[ 462.372004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 462.372004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
[ 462.372004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
[ 462.372004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
[ 462.372004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
[ 462.372004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
[ 462.372004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 462.372004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 462.372004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 462.372004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 462.372004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
[ 462.372004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
[ 462.372004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 462.372004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 462.372004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 462.372004] Task dump for CPU 12:
[ 462.372004] rcu_torture_rea R running task 14064 786 2 0x00000008
[ 462.372004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
[ 462.372004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
[ 462.372004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
[ 462.372004] Call Trace:
[ 462.372004] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
[ 462.372004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 462.372004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 462.372004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 462.372004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 462.372004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 462.372004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 462.372004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 462.372004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 462.372004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 462.372004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 481.191011] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1388586 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
[ 481.193164] rcu-torture: Reader Pipe: 10501340394 14768 0 0 0 0 0 0 0 0 0
[ 481.194038] rcu-torture: Reader Batch: 10185892351 315462811 0 0 0 0 0 0 0 0 0
[ 481.194945] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
[ 481.196067] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
[ 481.196689] rcu_preempt: wait state: 3 ->state: 0x1
[ 481.197181] rcu_sched: wait state: 1 ->state: 0x1
[ 481.197658] rcu_bh: wait state: 1 ->state: 0x1
[ 525.377004] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 525.377004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=69054
[ 525.377004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=69054
[ 525.377004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=69054
[ 525.377004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=69054
[ 525.377004] (detected by 2, t=210021 jiffies, g=4731, c=4730, q=2)
[ 525.377004] Task dump for CPU 3:
[ 525.377004] rcu_torture_rea R running task 14064 782 2 0x00000008
[ 525.377004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
[ 525.377004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
[ 525.377004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
[ 525.377004] Call Trace:
[ 525.377004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 525.377004] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
[ 525.377004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 525.377004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 525.377004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 525.377004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 525.377004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 525.377004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 525.377004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 525.377004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 525.377004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 525.377004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 525.377004] Task dump for CPU 8:
[ 525.377004] rcu_torture_rea R running task 14760 789 2 0x00000008
[ 525.377004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
[ 525.377004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
[ 525.377004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
[ 525.377004] Call Trace:
[ 525.377004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
[ 525.377004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
[ 525.377004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
[ 525.377004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 525.377004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 525.377004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
[ 525.377004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 525.377004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 525.377004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 525.377004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 525.377004] Task dump for CPU 11:
[ 525.377004] torture_onoff R running task 13416 798 2 0x00000008
[ 525.377004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
[ 525.377004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
[ 525.377004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
[ 525.377004] Call Trace:
[ 525.377004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
[ 525.377004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
[ 525.377004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
[ 525.377004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
[ 525.377004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
[ 525.377004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 525.377004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
[ 525.377004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
[ 525.377004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
[ 525.377004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
[ 525.377004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
[ 525.377004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 525.377004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 525.377004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 525.377004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 525.377004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
[ 525.377004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
[ 525.377004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 525.377004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 525.377004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 525.377004] Task dump for CPU 12:
[ 525.377004] rcu_torture_rea R running task 14064 786 2 0x00000008
[ 525.377004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
[ 525.377004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
[ 525.377004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
[ 525.377004] Call Trace:
[ 525.377004] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
[ 525.377004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 525.377004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 525.377004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 525.377004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 525.377004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 525.377004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 525.377004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 525.377004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 525.377004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 525.377004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 541.198012] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1507834 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
[ 541.200373] rcu-torture: Reader Pipe: 11417029944 14768 0 0 0 0 0 0 0 0 0
[ 541.201326] rcu-torture: Reader Batch: 11101581901 315462811 0 0 0 0 0 0 0 0 0
[ 541.202335] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
[ 541.203542] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
[ 541.204243] rcu_preempt: wait state: 3 ->state: 0x1
[ 541.204777] rcu_sched: wait state: 1 ->state: 0x1
[ 541.205309] rcu_bh: wait state: 1 ->state: 0x1
[ 588.382004] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 588.382004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=90027
[ 588.382004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=90027
[ 588.382004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=90027
[ 588.382004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=90027
[ 588.382004] (detected by 2, t=273026 jiffies, g=4731, c=4730, q=6)
[ 588.382004] Task dump for CPU 3:
[ 588.382004] rcu_torture_rea R running task 14064 782 2 0x00000008
[ 588.382004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
[ 588.382004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
[ 588.382004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
[ 588.382004] Call Trace:
[ 588.382004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 588.382004] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
[ 588.382004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 588.382004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 588.382004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 588.382004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 588.382004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 588.382004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 588.382004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 588.382004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 588.382004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 588.382004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 588.382004] Task dump for CPU 8:
[ 588.382004] rcu_torture_rea R running task 14760 789 2 0x00000008
[ 588.382004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
[ 588.382004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
[ 588.382004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
[ 588.382004] Call Trace:
[ 588.382004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
[ 588.382004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
[ 588.382004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
[ 588.382004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 588.382004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 588.382004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
[ 588.382004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 588.382004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 588.382004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 588.382004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 588.382004] Task dump for CPU 11:
[ 588.382004] torture_onoff R running task 13416 798 2 0x00000008
[ 588.382004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
[ 588.382004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
[ 588.382004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
[ 588.382004] Call Trace:
[ 588.382004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
[ 588.382004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
[ 588.382004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
[ 588.382004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
[ 588.382004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
[ 588.382004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 588.382004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
[ 588.382004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
[ 588.382004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
[ 588.382004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
[ 588.382004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
[ 588.382004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 588.382004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 588.382004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 588.382004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 588.382004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
[ 588.382004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
[ 588.382004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 588.382004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 588.382004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 588.382004] Task dump for CPU 12:
[ 588.382004] rcu_torture_rea R running task 14064 786 2 0x00000008
[ 588.382004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
[ 588.382004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
[ 588.382004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
[ 588.382004] Call Trace:
[ 588.382004] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
[ 588.382004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 588.382004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 588.382004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 588.382004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 588.382004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 588.382004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 588.382004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 588.382004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 588.382004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 588.382004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 601.205012] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1628388 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
[ 601.207374] rcu-torture: Reader Pipe: 12328853039 14768 0 0 0 0 0 0 0 0 0
[ 601.208335] rcu-torture: Reader Batch: 12013404996 315462811 0 0 0 0 0 0 0 0 0
[ 601.209353] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
[ 601.210556] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
[ 601.211259] rcu_preempt: wait state: 3 ->state: 0x1
[ 601.211796] rcu_sched: wait state: 1 ->state: 0x1
[ 601.212335] rcu_bh: wait state: 1 ->state: 0x1
[ 651.387004] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 651.387004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=111003
[ 651.387004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=111003
[ 651.387004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=111004
[ 651.387004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=111004
[ 651.387004] (detected by 13, t=336031 jiffies, g=4731, c=4730, q=10)
[ 651.387004] Task dump for CPU 3:
[ 651.387004] rcu_torture_rea R running task 14064 782 2 0x00000008
[ 651.387004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
[ 651.387004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
[ 651.387004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
[ 651.387004] Call Trace:
[ 651.387004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 651.387004] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
[ 651.387004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 651.387004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 651.387004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 651.387004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 651.387004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 651.387004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 651.387004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 651.387004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 651.387004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 651.387004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 651.387004] Task dump for CPU 8:
[ 651.387004] rcu_torture_rea R running task 14760 789 2 0x00000008
[ 651.387004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
[ 651.387004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
[ 651.387004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
[ 651.387004] Call Trace:
[ 651.387004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
[ 651.387004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
[ 651.387004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
[ 651.387004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 651.387004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 651.387004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
[ 651.387004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 651.387004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 651.387004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 651.387004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 651.387004] Task dump for CPU 11:
[ 651.387004] torture_onoff R running task 13416 798 2 0x00000008
[ 651.387004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
[ 651.387004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
[ 651.387004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
[ 651.387004] Call Trace:
[ 651.387004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
[ 651.387004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
[ 651.387004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
[ 651.387004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
[ 651.387004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
[ 651.387004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 651.387004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
[ 651.387004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
[ 651.387004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
[ 651.387004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
[ 651.387004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
[ 651.387004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 651.387004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 651.387004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 651.387004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 651.387004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
[ 651.387004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
[ 651.387004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 651.387004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 651.387004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 651.387004] Task dump for CPU 12:
[ 651.387004] rcu_torture_rea R running task 14064 786 2 0x00000008
[ 651.387004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
[ 651.387004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
[ 651.387004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
[ 651.387004] Call Trace:
[ 651.387004] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
[ 651.387004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 651.387004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 651.387004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 651.387004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 651.387004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 651.387004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 651.387004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 651.387004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 651.387004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 651.387004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 661.212012] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1750558 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
[ 661.214362] rcu-torture: Reader Pipe: 13245634209 14768 0 0 0 0 0 0 0 0 0
[ 661.215321] rcu-torture: Reader Batch: 12930186166 315462811 0 0 0 0 0 0 0 0 0
[ 661.216318] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
[ 661.217515] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
[ 661.218213] rcu_preempt: wait state: 3 ->state: 0x1
[ 661.218764] rcu_sched: wait state: 1 ->state: 0x1
[ 661.219294] rcu_bh: wait state: 1 ->state: 0x1
[ 714.392003] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 714.392003] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=131969
[ 714.392003] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=131969
[ 714.392003] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=131969
[ 714.392003] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=131969
[ 714.392003] (detected by 0, t=399032 jiffies, g=4731, c=4730, q=10)
[ 714.392003] Task dump for CPU 3:
[ 714.392003] rcu_torture_rea R running task 14064 782 2 0x00000008
[ 714.392003] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
[ 714.392003] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
[ 714.392003] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
[ 714.392003] Call Trace:
[ 714.392003] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 714.392003] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
[ 714.392003] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 714.392003] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 714.392003] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 714.392003] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 714.392003] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 714.392003] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 714.392003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 714.392003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 714.392003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 714.392003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 714.392003] Task dump for CPU 8:
[ 714.392003] rcu_torture_rea R running task 14760 789 2 0x00000008
[ 714.392003] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
[ 714.392003] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
[ 714.392003] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
[ 714.392003] Call Trace:
[ 714.392003] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
[ 714.392003] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
[ 714.392003] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
[ 714.392003] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
[ 714.392003] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 714.392003] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
[ 714.392003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 714.392003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 714.392003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 714.392003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 714.392003] Task dump for CPU 11:
[ 714.392003] torture_onoff R running task 13416 798 2 0x00000008
[ 714.392003] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
[ 714.392003] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
[ 714.392003] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
[ 714.392003] Call Trace:
[ 714.392003] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
[ 714.392003] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
[ 714.392003] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
[ 714.392003] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
[ 714.392003] [<ffffffff818b6422>] ? page_fault+0x22/0x30
[ 714.392003] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 714.392003] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
[ 714.392003] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
[ 714.392003] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
[ 714.392003] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
[ 714.392003] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
[ 714.392003] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 714.392003] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 714.392003] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 714.392003] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 714.392003] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
[ 714.392003] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
[ 714.392003] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 714.392003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 714.392003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 714.392003] Task dump for CPU 12:
[ 714.392003] rcu_torture_rea R running task 14064 786 2 0x00000008
[ 714.392003] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
[ 714.392003] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
[ 714.392003] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
[ 714.392003] Call Trace:
[ 714.392003] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
[ 714.392003] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
[ 714.392003] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 714.392003] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
[ 714.392003] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
[ 714.392003] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 714.392003] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
[ 714.392003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 714.392003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 714.392003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
[ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 714.392003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
[ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[-- Attachment #1.3: dmesg.2 --]
[-- Type: text/plain, Size: 152284 bytes --]
[ 0.000000] Linux version 4.5.0-rc1+ (root@insomnia) (gcc version 5.3.0 (GCC) ) #14 SMP PREEMPT Wed Mar 30 20:01:04 CST 2016
[ 0.000000] Command line: selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
[ 0.000000] x86/fpu: Legacy x87 FPU detected.
[ 0.000000] x86/fpu: Using 'lazy' FPU context switches.
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdefff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007ffdf000-0x000000007fffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 2.8 present.
[ 0.000000] e820: last_pfn = 0x7ffdf max_arch_pfn = 0x400000000
[ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
[ 0.000000] found SMP MP-table at [mem 0x000f6a50-0x000f6a5f] mapped at [ffff8800000f6a50]
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] Using GB pages for direct mapping
[ 0.000000] RAMDISK: [mem 0x7fcd4000-0x7ffcffff]
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x00000000000F6A00 000014 (v00 BOCHS )
[ 0.000000] ACPI: RSDT 0x000000007FFE1580 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACP 0x000000007FFE061A 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
[ 0.000000] ACPI: DSDT 0x000000007FFDFA80 000B9A (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACS 0x000000007FFDFA40 000040
[ 0.000000] ACPI: SSDT 0x000000007FFE068E 000DCA (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: APIC 0x000000007FFE1458 0000F0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
[ 0.000000] ACPI: HPET 0x000000007FFE1548 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007ffdefff]
[ 0.000000] NODE_DATA(0) allocated [mem 0x7ffdb000-0x7ffdefff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.000000] DMA32 [mem 0x0000000001000000-0x000000007ffdefff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.000000] node 0: [mem 0x0000000000100000-0x000000007ffdefff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000007ffdefff]
[ 0.000000] ACPI: PM-Timer IO Port: 0x608
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.000000] smpboot: Allowing 16 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 0.000000] e820: [mem 0x80000000-0xfeffbfff] available for PCI devices
[ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
[ 0.000000] setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:16 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 32 pages/cpu @ffff88007fa00000 s92008 r8192 d30872 u131072
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 515944
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Memory: 2040780K/2096628K available (8931K kernel code, 1258K rwdata, 3700K rodata, 1092K init, 984K bss, 55848K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=16, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] RCU debugfs-based tracing is enabled.
[ 0.000000] CONFIG_RCU_FANOUT set to non-default value of 2
[ 0.000000] RCU torture testing starts during boot.
[ 0.000000] Four(or more)-level hierarchy is enabled.
[ 0.000000] Build-time adjustment of leaf fanout to 2.
[ 0.000000] RCU kthread priority: 2.
[ 0.000000] NR_IRQS:4352 nr_irqs:552 16
[ 0.000000] Console: colour *CGA 80x25
[ 0.000000] console [ttyS0] enabled
[ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
[ 0.000000] tsc: Fast TSC calibration using PIT
[ 0.000000] tsc: Detected 3466.832 MHz processor
[ 0.003013] Calibrating delay loop (skipped), value calculated using timer frequency.. 6933.66 BogoMIPS (lpj=3466832)
[ 0.003833] pid_max: default: 32768 minimum: 301
[ 0.004006] ACPI: Core revision 20160108
[ 0.005469] ACPI: 2 ACPI AML tables successfully acquired and loaded
[ 0.005978]
[ 0.006019] Security Framework initialized
[ 0.006345] SELinux: Disabled at boot.
[ 0.006740] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.007361] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.008155] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.008679] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.009966] mce: CPU supports 10 MCE banks
[ 0.010033] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.010446] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 0.012422] Freeing SMP alternatives memory: 32K (ffffffff8204d000 - ffffffff82055000)
[ 0.013352] Switched APIC routing to physical flat.
[ 0.014528] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.024122] smpboot: CPU0: Intel(R) Xeon(R) CPU X5690 @ 3.47GHz (family: 0x6, model: 0x2c, stepping: 0x2)
[ 0.025000] Performance Events: 16-deep LBR, Westmere events, Intel PMU driver.
[ 0.025496] perf_event_intel: CPUID marked event: 'bus cycles' unavailable
[ 0.026006] ... version: 2
[ 0.026368] ... bit width: 48
[ 0.026737] ... generic registers: 4
[ 0.027003] ... value mask: 0000ffffffffffff
[ 0.027478] ... max period: 000000007fffffff
[ 0.027953] ... fixed-purpose events: 3
[ 0.028003] ... event mask: 000000070000000f
[ 0.037037] x86: Booting SMP configuration:
[ 0.037492] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15
[ 0.995027] x86: Booted up 1 node, 16 CPUs
[ 0.995371] smpboot: Total of 16 processors activated (111391.08 BogoMIPS)
[ 0.997856] devtmpfs: initialized
[ 0.998418] kworker/u32:0 (98) used greatest stack depth: 13928 bytes left
[ 0.998561] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[ 0.998925] RTC time: 12:20:59, date: 03/30/16
[ 0.999018] NET: Registered protocol family 16
[ 1.005018] cpuidle: using governor menu
[ 1.005421] ACPI: bus type PCI registered
[ 1.005818] PCI: Using configuration type 1 for base access
[ 1.005747] kworker/u32:3 (115) used greatest stack depth: 13920 bytes left
[ 1.021340] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 1.022603] ACPI: Added _OSI(Module Device)
[ 1.022952] ACPI: Added _OSI(Processor Device)
[ 1.023005] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 1.023355] ACPI: Added _OSI(Processor Aggregator Device)
[ 1.025022] ACPI: Interpreter enabled
[ 1.025320] ACPI: (supports S0 S3 S4 S5)
[ 1.025667] ACPI: Using IOAPIC for interrupt routing
[ 1.026046] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 1.032012] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 1.032602] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
[ 1.033009] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
[ 1.033650] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
[ 1.034072] PCI host bridge to bus 0000:00
[ 1.034468] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
[ 1.034968] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
[ 1.035004] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[ 1.035585] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff window]
[ 1.036017] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 1.039433] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
[ 1.039968] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
[ 1.040005] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
[ 1.040517] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
[ 1.041368] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI
[ 1.041916] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB
[ 1.042815] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[ 1.043205] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
[ 1.043758] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[ 1.044198] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
[ 1.044713] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
[ 1.046143] ACPI: Enabled 16 GPEs in block 00 to 0F
[ 1.046807] vgaarb: loaded
[ 1.047110] SCSI subsystem initialized
[ 1.047744] ACPI: bus type USB registered
[ 1.048059] usbcore: registered new interface driver usbfs
[ 1.048522] usbcore: registered new interface driver hub
[ 1.049121] usbcore: registered new device driver usb
[ 1.049610] pps_core: LinuxPPS API ver. 1 registered
[ 1.049993] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 1.050037] PTP clock support registered
[ 1.050709] Advanced Linux Sound Architecture Driver Initialized.
[ 1.051063] PCI: Using ACPI for IRQ routing
[ 1.051868] NetLabel: Initializing
[ 1.052004] NetLabel: domain hash size = 128
[ 1.052344] NetLabel: protocols = UNLABELED CIPSOv4
[ 1.052731] NetLabel: unlabeled traffic allowed by default
[ 1.053340] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[ 1.053767] hpet0: 3 comparators, 64-bit 100.000000 MHz counter
[ 1.060502] clocksource: Switched to clocksource hpet
[ 1.067708] VFS: Disk quotas dquot_6.6.0
[ 1.068138] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 1.068861] pnp: PnP ACPI init
[ 1.069996] pnp: PnP ACPI: found 5 devices
[ 1.083114] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[ 1.084330] NET: Registered protocol family 2
[ 1.084798] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[ 1.085547] TCP bind hash table entries: 16384 (order: 7, 524288 bytes)
[ 1.086253] TCP: Hash tables configured (established 16384 bind 16384)
[ 1.086773] UDP hash table entries: 1024 (order: 4, 98304 bytes)
[ 1.087369] UDP-Lite hash table entries: 1024 (order: 4, 98304 bytes)
[ 1.087919] NET: Registered protocol family 1
[ 1.088579] RPC: Registered named UNIX socket transport module.
[ 1.089121] RPC: Registered udp transport module.
[ 1.089484] RPC: Registered tcp transport module.
[ 1.089831] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.090460] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[ 1.090902] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[ 1.091511] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[ 1.092093] Unpacking initramfs...
[ 1.134394] Freeing initrd memory: 3056K (ffff88007fcd4000 - ffff88007ffd0000)
[ 1.137993] Scanning for low memory corruption every 60 seconds
[ 1.138767] rcu-torture:--- Start of test: nreaders=15 nfakewriters=4 stat_interval=60 verbose=1 test_no_idle_hz=1 shuffle_interval=3 stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 fqs_stutter=3 test_boost=1/0 test_boost_interval=7 test_boost_duration=4 shutdown_secs=0 stall_cpu=0 stall_cpu_holdoff=10 n_barrier_cbs=0 onoff_interval=1 onoff_holdoff=0
[ 1.141407] rcu-torture: Creating rcu_torture_writer task
[ 1.141864] rcu-torture: Creating rcu_torture_fakewriter task
[ 1.141869] rcu-torture: rcu_torture_writer task started
[ 1.141870] rcu-torture: Grace periods expedited from boot/sysfs for rcu,
[ 1.141870] rcu-torture: Testing of dynamic grace-period expediting diabled.
[ 1.143988] rcu-torture: Creating rcu_torture_fakewriter task
[ 1.143990] rcu-torture: rcu_torture_fakewriter task started
[ 1.144986] rcu-torture: Creating rcu_torture_fakewriter task
[ 1.144990] rcu-torture: rcu_torture_fakewriter task started
[ 1.146065] rcu-torture: Creating rcu_torture_fakewriter task
[ 1.146120] rcu-torture: rcu_torture_fakewriter task started
[ 1.147143] rcu-torture: rcu_torture_fakewriter task started
[ 1.147141] rcu-torture: Creating rcu_torture_reader task
[ 1.147233] rcu-torture: Creating rcu_torture_reader task
[ 1.147235] rcu-torture: rcu_torture_reader task started
[ 1.147314] rcu-torture: Creating rcu_torture_reader task
[ 1.147317] rcu-torture: rcu_torture_reader task started
[ 1.147357] rcu-torture: Creating rcu_torture_reader task
[ 1.147363] rcu-torture: rcu_torture_reader task started
[ 1.147403] rcu-torture: Creating rcu_torture_reader task
[ 1.147406] rcu-torture: rcu_torture_reader task started
[ 1.147479] rcu-torture: Creating rcu_torture_reader task
[ 1.147483] rcu-torture: rcu_torture_reader task started
[ 1.147543] rcu-torture: Creating rcu_torture_reader task
[ 1.147549] rcu-torture: rcu_torture_reader task started
[ 1.147607] rcu-torture: Creating rcu_torture_reader task
[ 1.147611] rcu-torture: rcu_torture_reader task started
[ 1.147669] rcu-torture: Creating rcu_torture_reader task
[ 1.147679] rcu-torture: rcu_torture_reader task started
[ 1.147729] rcu-torture: Creating rcu_torture_reader task
[ 1.147740] rcu-torture: rcu_torture_reader task started
[ 1.149119] rcu-torture: Creating rcu_torture_reader task
[ 1.149123] rcu-torture: rcu_torture_reader task started
[ 1.149990] rcu-torture: Creating rcu_torture_reader task
[ 1.150107] rcu-torture: rcu_torture_reader task started
[ 1.150142] rcu-torture: Creating rcu_torture_reader task
[ 1.150147] rcu-torture: rcu_torture_reader task started
[ 1.150208] rcu-torture: Creating rcu_torture_reader task
[ 1.150212] rcu-torture: rcu_torture_reader task started
[ 1.151160] rcu-torture: Creating rcu_torture_reader task
[ 1.151221] rcu-torture: Creating rcu_torture_stats task
[ 1.151253] rcu-torture: rcu_torture_reader task started
[ 1.151277] rcu-torture: Creating torture_shuffle task
[ 1.151284] rcu-torture: rcu_torture_stats task started
[ 1.152080] rcu-torture: Creating torture_stutter task
[ 1.152111] rcu-torture: torture_shuffle task started
[ 1.152112] rcu-torture: rcu_torture_reader task started
[ 1.154114] rcu-torture: Creating torture_onoff task
[ 1.154118] rcu-torture: torture_stutter task started
[ 1.211086] rcu-torture: Creating rcu_torture_cbflood task
[ 1.211090] rcu-torture: torture_onoff task started
[ 1.211092] rcu-torture:torture_onoff task: offlining 13
[ 1.213955] rcu-torture: Creating rcu_torture_cbflood task
[ 1.214122] rcu-torture: rcu_torture_cbflood task started
[ 1.218078] rcu-torture: Creating rcu_torture_cbflood task
[ 1.218734] rcu-torture: Creating rcu_torture_cbflood task
[ 1.219118] rcu-torture: rcu_torture_cbflood task started
[ 1.223173] rcu-torture: rcu_torture_cbflood task started
[ 1.223205] rcu-torture: rcu_torture_cbflood task started
[ 1.243284] rcu-torture:torture_onoff task: offlined 13
[ 1.243675] futex hash table entries: 4096 (order: 6, 262144 bytes)
[ 1.243736] audit: initializing netlink subsys (disabled)
[ 1.243747] audit: type=2000 audit(1459340459.243:1): initialized
[ 1.313263] NFS: Registering the id_resolver key type
[ 1.313829] Key type id_resolver registered
[ 1.314376] Key type id_legacy registered
[ 1.354157] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[ 1.354945] io scheduler noop registered
[ 1.356446] io scheduler deadline registered
[ 1.356923] io scheduler cfq registered (default)
[ 1.357612] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 1.359433] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[ 1.361337] ACPI: Power Button [PWRF]
[ 1.362621] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 1.399062] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 1.400539] Non-volatile memory driver v1.3
[ 1.401156] Linux agpgart interface v0.103
[ 1.401710] [drm] Initialized drm 1.1.0 20060810
[ 1.429307] loop: module loaded
[ 1.434097] scsi host0: ata_piix
[ 1.435777] scsi host1: ata_piix
[ 1.436290] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc000 irq 14
[ 1.438073] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc008 irq 15
[ 1.438894] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
[ 1.439675] e100: Copyright(c) 1999-2006 Intel Corporation
[ 1.440407] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[ 1.442252] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 1.442889] sky2: driver version 1.30
[ 1.443530] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.444322] ehci-pci: EHCI PCI platform driver
[ 1.444823] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.445569] ohci-pci: OHCI PCI platform driver
[ 1.449090] uhci_hcd: USB Universal Host Controller Interface driver
[ 1.449826] usbcore: registered new interface driver usblp
[ 1.451533] usbcore: registered new interface driver usb-storage
[ 1.452336] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
[ 1.455238] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 1.457074] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 1.457752] mousedev: PS/2 mouse device common for all mice
[ 1.458778] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
[ 1.461184] rtc_cmos 00:00: RTC can wake from S4
[ 1.463104] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0
[ 1.465953] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram, hpet irqs
[ 1.468306] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 1.469385] hidraw: raw HID events driver (C) Jiri Kosina
[ 1.470275] usbcore: registered new interface driver usbhid
[ 1.470884] usbhid: USB HID core driver
[ 1.471898] Netfilter messages via NETLINK v0.30.
[ 1.472530] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 1.474410] ctnetlink v0.93: registering with nfnetlink.
[ 1.550099] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 1.562112] Initializing XFRM netlink socket
[ 1.562766] NET: Registered protocol family 10
[ 1.566194] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 1.651113] sit: IPv6 over IPv4 tunneling driver
[ 1.651774] NET: Registered protocol family 17
[ 1.652402] Key type dns_resolver registered
[ 1.656232] microcode: CPU0 sig=0x206c2, pf=0x1, revision=0x1
[ 1.656892] microcode: CPU1 sig=0x206c2, pf=0x1, revision=0x1
[ 1.657595] microcode: CPU2 sig=0x206c2, pf=0x1, revision=0x1
[ 1.658311] microcode: CPU3 sig=0x206c2, pf=0x1, revision=0x1
[ 1.659050] microcode: CPU4 sig=0x206c2, pf=0x1, revision=0x1
[ 1.659713] microcode: CPU5 sig=0x206c2, pf=0x1, revision=0x1
[ 1.664080] microcode: CPU6 sig=0x206c2, pf=0x1, revision=0x1
[ 1.664717] microcode: CPU7 sig=0x206c2, pf=0x1, revision=0x1
[ 1.666372] microcode: CPU8 sig=0x206c2, pf=0x1, revision=0x1
[ 1.667095] microcode: CPU9 sig=0x206c2, pf=0x1, revision=0x1
[ 1.667730] microcode: CPU10 sig=0x206c2, pf=0x1, revision=0x1
[ 1.668984] microcode: CPU11 sig=0x206c2, pf=0x1, revision=0x1
[ 1.671078] microcode: CPU12 sig=0x206c2, pf=0x1, revision=0x1
[ 1.671735] microcode: CPU14 sig=0x206c2, pf=0x1, revision=0x1
[ 1.675111] microcode: CPU15 sig=0x206c2, pf=0x1, revision=0x1
[ 1.675751] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[ 1.677129] registered taskstats version 1
[ 1.678189] Magic number: 8:778:330
[ 1.678610] tty tty51: hash matches
[ 1.679080] console [netcon0] enabled
[ 1.679486] netconsole: network logging started
[ 1.681203] ALSA device list:
[ 1.681517] No soundcards found.
[ 1.686591] Freeing unused kernel memory: 1092K (ffffffff81f3c000 - ffffffff8204d000)
[ 1.688489] Write protecting the kernel read-only data: 14336k
[ 1.733287] Freeing unused kernel memory: 1296K (ffff8800018bc000 - ffff880001a00000)
[ 1.737138] Freeing unused kernel memory: 396K (ffff880001d9d000 - ffff880001e00000)
:: running early hook [udev]
Warning: /lib/modules/4.5.0-rc1+/modules.devname not found - ignoring
[ 1.827599] random: systemd-tmpfile urandom read with 3 bits of entropy available
[ 1.828672] systemd-tmpfile (1173) used greatest stack depth: 13896 bytes left
starting version 228
:: running hook [udev]
:: Triggering uevents...
[ 2.069991] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
[ 2.135095] tsc: Refined TSC clocksource calibration: 3466.788 MHz
[ 2.135783] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x31f8c2dfb06, max_idle_ns: 440795261134 ns
[ 2.247097] rcu-torture:torture_onoff task: offlining 2
ERROR: device '' not found. Skipping fsck.
ERROR: Unable to find root device ''.
You are being dropped to a recovery shell
Type 'exit' to try and continue booting
[ 2.386672] smpboot: CPU 2 is now offline
sh: can't access tty; job control turned off
[rootfs /]# [ 2.397205] rcu-torture:torture_onoff task: offlined 2
[ 2.410066] hrtimer: interrupt took 3042970 ns
[ 3.146410] clocksource: Switched to clocksource tsc
[ 3.399958] rcu-torture:torture_onoff task: onlining 2
[ 3.460067] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 3.547187] rcu-torture:torture_onoff task: onlined 2
[ 4.546024] rcu-torture:torture_onoff task: offlining 11
[ 4.693029] smpboot: CPU 11 is now offline
[ 4.741119] rcu-torture:torture_onoff task: offlined 11
[ 5.749377] rcu-torture:torture_onoff task: offlining 14
[ 5.949978] smpboot: CPU 14 is now offline
[ 5.963969] rcu-torture:torture_onoff task: offlined 14
[ 6.964014] rcu-torture:torture_onoff task: offlining 10
[ 7.053009] smpboot: CPU 10 is now offline
[ 7.110906] rcu-torture:torture_onoff task: offlined 10
[ 9.111009] rcu-torture:torture_onoff task: offlining 15
[ 9.168815] smpboot: CPU 15 is now offline
[ 9.223617] rcu-torture:torture_onoff task: offlined 15
[ 10.224013] rcu-torture:torture_onoff task: offlining 7
[ 10.279743] smpboot: CPU 7 is now offline
[ 10.334679] rcu-torture:torture_onoff task: offlined 7
[ 11.353015] rcu-torture:torture_onoff task: offlining 8
[ 11.399709] smpboot: CPU 8 is now offline
[ 11.452791] rcu-torture:torture_onoff task: offlined 8
[ 12.453012] rcu-torture:torture_onoff task: offlining 2
[ 12.692639] smpboot: CPU 2 is now offline
[ 12.700748] rcu-torture:torture_onoff task: offlined 2
[ 13.701030] rcu-torture:torture_onoff task: offlining 4
[ 13.805923] smpboot: CPU 4 is now offline
[ 13.810522] rcu-torture:torture_onoff task: offlined 4
[ 14.812009] rcu-torture:torture_onoff task: onlining 14
[ 14.853417] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 14.978121] rcu-torture:torture_onoff task: onlined 14
[ 15.993226] rcu-torture:torture_onoff task: offlining 1
[ 16.075508] smpboot: CPU 1 is now offline
[ 16.079509] rcu-torture:torture_onoff task: offlined 1
[ 17.080012] rcu-torture:torture_onoff task: onlining 11
[ 17.134382] smpboot: Booting Node 0 Processor 11 APIC 0xb
[ 17.161137] rcu-torture:torture_onoff task: onlined 11
[ 18.161010] rcu-torture:torture_onoff task: onlining 13
[ 18.215414] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 18.242122] microcode: CPU13 sig=0x206c2, pf=0x1, revision=0x1
[ 18.242769] rcu-torture:torture_onoff task: onlined 13
[ 19.243011] rcu-torture:torture_onoff task: onlining 7
[ 19.297658] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 19.351182] rcu-torture:torture_onoff task: onlined 7
[ 20.351029] rcu-torture:torture_onoff task: offlining 7
[ 20.408213] smpboot: CPU 7 is now offline
[ 20.463500] rcu-torture:torture_onoff task: offlined 7
[ 21.464012] rcu-torture:torture_onoff task: onlining 15
[ 21.490634] smpboot: Booting Node 0 Processor 15 APIC 0xf
[ 21.617119] rcu-torture:torture_onoff task: onlined 15
[ 22.617010] rcu-torture:torture_onoff task: offlining 14
[ 22.675687] smpboot: CPU 14 is now offline
[ 22.681349] rcu-torture:torture_onoff task: offlined 14
[ 23.681012] rcu-torture:torture_onoff task: onlining 4
[ 23.731637] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 23.871156] rcu-torture:torture_onoff task: onlined 4
[ 24.871012] rcu-torture:torture_onoff task: onlining 1
[ 24.900714] x86: Booting SMP configuration:
[ 24.901186] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 24.950179] rcu-torture:torture_onoff task: onlined 1
[ 25.950013] rcu-torture:torture_onoff task: offlining 3
[ 26.057786] smpboot: CPU 3 is now offline
[ 26.064052] rcu-torture:torture_onoff task: offlined 3
[ 27.064012] rcu-torture:torture_onoff task: offlining 12
[ 27.119717] smpboot: CPU 12 is now offline
[ 27.174923] rcu-torture:torture_onoff task: offlined 12
[ 28.175012] rcu-torture:torture_onoff task: offlining 11
[ 28.230573] smpboot: CPU 11 is now offline
[ 28.285886] rcu-torture:torture_onoff task: offlined 11
[ 30.286014] rcu-torture:torture_onoff task: onlining 10
[ 30.294771] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 30.321158] rcu-torture:torture_onoff task: onlined 10
[ 31.321012] rcu-torture:torture_onoff task: offlining 10
[ 31.382675] smpboot: CPU 10 is now offline
[ 31.388604] rcu-torture:torture_onoff task: offlined 10
[ 32.398957] rcu-torture:torture_onoff task: offlining 15
[ 32.483642] smpboot: CPU 15 is now offline
[ 32.503185] rcu-torture:torture_onoff task: offlined 15
[ 33.517435] rcu-torture:torture_onoff task: offlining 9
[ 33.544327] smpboot: CPU 9 is now offline
[ 33.643562] rcu-torture:torture_onoff task: offlined 9
[ 34.643009] rcu-torture:torture_onoff task: onlining 8
[ 34.691663] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 34.940504] rcu-torture:torture_onoff task: onlined 8
[ 35.940017] rcu-torture:torture_onoff task: onlining 12
[ 35.977744] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 36.027219] rcu-torture:torture_onoff task: onlined 12
[ 37.027017] rcu-torture:torture_onoff task: offlining 5
[ 37.086642] smpboot: CPU 5 is now offline
[ 37.140600] rcu-torture:torture_onoff task: offlined 5
[ 38.140057] rcu-torture:torture_onoff task: offlining 1
[ 38.195592] smpboot: CPU 1 is now offline
[ 38.249549] rcu-torture:torture_onoff task: offlined 1
[ 39.249060] rcu-torture:torture_onoff task: onlining 2
[ 39.303563] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 39.330313] rcu-torture:torture_onoff task: onlined 2
[ 40.330013] rcu-torture:torture_onoff task: onlining 7
[ 40.384528] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 40.410295] rcu-torture:torture_onoff task: onlined 7
[ 41.410012] rcu-torture:torture_onoff task: onlining 15
[ 41.445849] smpboot: Booting Node 0 Processor 15 APIC 0xf
[ 41.595119] rcu-torture:torture_onoff task: onlined 15
[ 42.595017] rcu-torture:torture_onoff task: onlining 11
[ 42.640687] smpboot: Booting Node 0 Processor 11 APIC 0xb
[ 42.897158] rcu-torture:torture_onoff task: onlined 11
[ 43.918123] rcu-torture:torture_onoff task: offlining 11
[ 44.002293] smpboot: CPU 11 is now offline
[ 44.030843] rcu-torture:torture_onoff task: offlined 11
[ 45.069287] rcu-torture:torture_onoff task: onlining 14
[ 45.110852] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 45.190158] rcu-torture:torture_onoff task: onlined 14
[ 46.200280] rcu-torture:torture_onoff task: onlining 3
[ 46.254642] smpboot: Booting Node 0 Processor 3 APIC 0x3
[ 46.281296] rcu-torture:torture_onoff task: onlined 3
[ 47.281108] rcu-torture:torture_onoff task: offlining 12
[ 47.354083] smpboot: CPU 12 is now offline
[ 47.408502] rcu-torture:torture_onoff task: offlined 12
[ 48.409053] rcu-torture:torture_onoff task: offlining 7
[ 48.468196] smpboot: CPU 7 is now offline
[ 48.522054] rcu-torture:torture_onoff task: offlined 7
[ 49.522011] rcu-torture:torture_onoff task: onlining 5
[ 49.576662] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 49.620233] rcu-torture:torture_onoff task: onlined 5
[ 50.620020] rcu-torture:torture_onoff task: offlining 5
[ 50.675691] smpboot: CPU 5 is now offline
[ 50.730810] rcu-torture:torture_onoff task: offlined 5
[ 51.731011] rcu-torture:torture_onoff task: onlining 7
[ 51.755781] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 51.939999] rcu-torture:torture_onoff task: onlined 7
[ 52.940014] rcu-torture:torture_onoff task: onlining 10
[ 52.977706] smpboot: Booting Node 0 Processor 10 APIC 0xa
[ 53.087157] rcu-torture:torture_onoff task: onlined 10
[ 55.087012] rcu-torture:torture_onoff task: offlining 7
[ 55.185286] smpboot: CPU 7 is now offline
[ 55.223166] rcu-torture:torture_onoff task: offlined 7
[ 57.223027] rcu-torture:torture_onoff task: onlining 9
[ 57.277812] smpboot: Booting Node 0 Processor 9 APIC 0x9
[ 57.453204] rcu-torture:torture_onoff task: onlined 9
[ 58.453025] rcu-torture:torture_onoff task: offlining 4
[ 58.508771] smpboot: CPU 4 is now offline
[ 58.563853] rcu-torture:torture_onoff task: offlined 4
[ 59.564021] rcu-torture:torture_onoff task: offlining 15
[ 59.619737] smpboot: CPU 15 is now offline
[ 59.674752] rcu-torture:torture_onoff task: offlined 15
[ 60.675011] rcu-torture:torture_onoff task: onlining 11
[ 60.729655] smpboot: Booting Node 0 Processor 11 APIC 0xb
[ 60.760167] rcu-torture:torture_onoff task: onlined 11
[ 61.151063] rcu-torture: rtc: ffffffff820d6d90 ver: 486 tfle: 0 rta: 486 rtaf: 0 rtf: 477 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 190132 onoff: 22/22:28/28 35,302:36,248 3043:3316 (HZ=1000) barrier: 0/0:0 cbflood: 111
[ 61.152622] rcu-torture: Reader Pipe: 1535993020 2788 0 0 0 0 0 0 0 0 0
[ 61.153284] rcu-torture: Reader Batch: 1498299548 37696260 0 0 0 0 0 0 0 0 0
[ 61.153956] rcu-torture: Free-Block Circulation: 485 485 484 483 482 481 480 479 478 477 0
[ 61.761294] rcu-torture:torture_onoff task: onlining 7
[ 61.775714] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 61.863159] rcu-torture:torture_onoff task: onlined 7
[ 62.863011] rcu-torture:torture_onoff task: onlining 4
[ 62.871773] smpboot: Booting Node 0 Processor 4 APIC 0x4
[ 63.031172] rcu-torture:torture_onoff task: onlined 4
[ 65.031013] rcu-torture:torture_onoff task: onlining 12
[ 65.080798] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 65.275156] rcu-torture:torture_onoff task: onlined 12
[ 66.275024] rcu-torture:torture_onoff task: offlining 8
[ 66.389965] smpboot: CPU 8 is now offline
[ 66.446833] rcu-torture:torture_onoff task: offlined 8
[ 67.447011] rcu-torture:torture_onoff task: offlining 4
[ 67.519976] smpboot: CPU 4 is now offline
[ 67.574933] rcu-torture:torture_onoff task: offlined 4
[ 68.575012] rcu-torture:torture_onoff task: offlining 14
[ 68.630792] smpboot: CPU 14 is now offline
[ 68.685836] rcu-torture:torture_onoff task: offlined 14
[ 69.686010] rcu-torture:torture_onoff task: onlining 8
[ 69.740781] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 69.767219] rcu-torture:torture_onoff task: onlined 8
[ 70.767012] rcu-torture:torture_onoff task: onlining 1
[ 70.821811] x86: Booting SMP configuration:
[ 70.822290] smpboot: Booting Node 0 Processor 1 APIC 0x1
[ 70.849223] rcu-torture:torture_onoff task: onlined 1
[ 71.849011] rcu-torture:torture_onoff task: offlining 8
[ 71.910796] smpboot: CPU 8 is now offline
[ 71.932831] rcu-torture:torture_onoff task: offlined 8
[ 72.933011] rcu-torture:torture_onoff task: onlining 14
[ 72.974767] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 73.058172] rcu-torture:torture_onoff task: onlined 14
[ 74.058013] rcu-torture:torture_onoff task: offlining 2
[ 74.109813] smpboot: CPU 2 is now offline
[ 74.162576] rcu-torture:torture_onoff task: offlined 2
[ 75.198166] rcu-torture:torture_onoff task: onlining 5
[ 75.213514] smpboot: Booting Node 0 Processor 5 APIC 0x5
[ 75.352163] rcu-torture:torture_onoff task: onlined 5
[ 76.352021] rcu-torture:torture_onoff task: offlining 5
[ 76.407822] smpboot: CPU 5 is now offline
[ 76.461629] rcu-torture:torture_onoff task: offlined 5
[ 77.462018] rcu-torture:torture_onoff task: offlining 3
[ 77.532054] smpboot: CPU 3 is now offline
[ 77.586834] rcu-torture:torture_onoff task: offlined 3
[ 78.587038] rcu-torture:torture_onoff task: onlining 15
[ 78.660026] smpboot: Booting Node 0 Processor 15 APIC 0xf
[ 78.710236] rcu-torture:torture_onoff task: onlined 15
[ 79.710023] rcu-torture:torture_onoff task: onlining 8
[ 79.764771] smpboot: Booting Node 0 Processor 8 APIC 0x8
[ 79.816193] rcu-torture:torture_onoff task: onlined 8
[ 80.817021] rcu-torture:torture_onoff task: offlining 14
[ 80.889959] smpboot: CPU 14 is now offline
[ 80.945843] rcu-torture:torture_onoff task: offlined 14
[ 81.946011] rcu-torture:torture_onoff task: offlining 1
[ 81.982648] smpboot: CPU 1 is now offline
[ 82.023787] rcu-torture:torture_onoff task: offlined 1
[ 83.024014] rcu-torture:torture_onoff task: onlining 2
[ 83.036513] smpboot: Booting Node 0 Processor 2 APIC 0x2
[ 83.227164] rcu-torture:torture_onoff task: onlined 2
[ 84.227012] rcu-torture:torture_onoff task: onlining 14
[ 84.247776] smpboot: Booting Node 0 Processor 14 APIC 0xe
[ 84.339163] rcu-torture:torture_onoff task: onlined 14
[ 85.339012] rcu-torture:torture_onoff task: offlining 8
[ 85.420802] smpboot: CPU 8 is now offline
[ 85.442792] rcu-torture:torture_onoff task: offlined 8
[ 86.443011] rcu-torture:torture_onoff task: offlining 13
[ 86.497797] smpboot: CPU 13 is now offline
[ 86.498352] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 86.499223] IP: [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 86.499255] PGD 0
[ 86.499255] Oops: 0002 [#1] PREEMPT SMP
[ 86.499255] Modules linked in:
[ 86.499255] CPU: 11 PID: 794 Comm: torture_onoff Not tainted 4.5.0-rc1+ #14
[ 86.499255] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.499255] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
[ 86.499255] RIP: 0010:[<ffffffff810b9452>] [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 86.499255] RSP: 0000:ffff88007c63fc98 EFLAGS: 00010086
[ 86.499255] RAX: dead000000000200 RBX: ffff88007fb6cc00 RCX: ffff88007fbacc00
[ 86.499255] RDX: 0000000000000000 RSI: ffff88007fbad650 RDI: ffff88007fb6cc00
[ 86.499255] RBP: ffff88007c63fcc0 R08: 0000000000000000 R09: ffffffff81e4d360
[ 86.499255] R10: 0000000000000000 R11: 0000000000018f70 R12: ffff88007fbad650
[ 86.499255] R13: ffff88007fb6cc00 R14: 000000000000000b R15: ffff88007fbac420
[ 86.499255] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 86.509030] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.509030] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.509030] Stack:
[ 86.509030] ffff88007fb6cc00 ffff88007fbad658 ffff88007fbada50 ffff88007fbad850
[ 86.509030] ffff88007fbad458 ffff88007c63fd08 ffffffff810b95c4 ffff88007fbacc00
[ 86.509030] ffff88007fbad648 00000000fffffff0 ffffffff81e4e0c0 0000000000000007
[ 86.509030] Call Trace:
[ 86.509030] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 86.509030] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 86.509030] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 86.509030] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 86.509030] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 86.509030] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 86.509030] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 86.509030] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 86.509030] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 86.509030] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 86.509030] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 86.509030] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 86.509030] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.509030] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.509030] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.509030] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.509030] Code: 56 41 55 41 54 53 48 8b 06 44 8b 77 40 48 85 c0 74 53 49 89 fd 49 89 f4 4d 8b 3c 24 66 66 66 66 90 49 8b 07 49 8b 57 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 00 00 00 00 ad de 4c 89
[ 86.509030] RIP [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 86.509030] RSP <ffff88007c63fc98>
[ 86.509030] CR2: 0000000000000000
[ 86.509030] ---[ end trace 68c18a1de6af7dbc ]---
[ 86.509030] note: torture_onoff[794] exited with preempt_count 3
[ 86.530564] BUG: spinlock lockup suspected on CPU#11, torture_onoff/794
[ 86.530564] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/794, .owner_cpu: 11
[ 86.530564] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] ffff88007fb6cc00 ffff88007fb63e50 ffffffff8132cd6c ffff88007c67a580
[ 86.530564] ffff88007fb63e70 ffffffff81092fb3 ffff88007fb6cc00 00000000cfbb42a0
[ 86.530564] ffff88007fb63ea0 ffffffff810930db ffff88007fb6cc00 ffffffff81e080c8
[ 86.530564] Call Trace:
[ 86.530564] <IRQ> [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 86.530564] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 86.530564] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 86.530564] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 86.530564] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 86.530564] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 86.530564] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 86.530564] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 86.530564] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 86.530564] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 86.530564] <EOI> [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 86.530564] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 86.530564] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 86.530564] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 86.530564] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 86.530564] [<ffffffff8104a612>] no_context+0x102/0x330
[ 86.530564] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 86.530564] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 86.530564] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 86.530564] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 86.530564] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 86.530564] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 86.530564] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 86.530564] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 86.530564] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 86.530564] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 86.530564] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 86.530564] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 86.530564] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 86.530564] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 86.530564] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 86.530564] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 86.530564] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 86.530564] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Sending NMI to all CPUs:
[ 86.530564] NMI backtrace for cpu 0
[ 86.530564] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007c66be80 ti: ffff88007c660000 task.ti: ffff88007c660000
[ 86.530564] RIP: 0010:[<ffffffff81339455>] [<ffffffff81339455>] delay_tsc+0x25/0xc0
[ 86.530564] RSP: 0018:ffff88007c663d00 EFLAGS: 00000002
[ 86.530564] RAX: 00000000f5d32a52 RBX: ffff88007fbacc00 RCX: 0000000000000002
[ 86.530564] RDX: 00000000000000b0 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 86.530564] RBP: ffff88007c663d20 R08: ffff88007c660000 R09: ffff88007fbacc00
[ 86.530564] R10: ffff88007c663e30 R11: 0000000000000001 R12: 00000000aaeed6e6
[ 86.530564] R13: 0000000000000001 R14: 0000000000000000 R15: ffff88007c663dd0
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 000055f32cd75020 CR3: 0000000001e0f000 CR4: 00000000000006f0
[ 86.530564] Stack:
[ 86.530564] ffff88007fbacc00 00000000aaeed6e6 0000000000000001 00000000cfbb42a0
[ 86.530564] ffff88007c663d30 ffffffff8133930a ffff88007c663d60 ffffffff810930c7
[ 86.530564] 0000000000000286 ffff88007fbacc00 ffff88007fbacc00 000000000000cc00
[ 86.530564] Call Trace:
[ 86.530564] [<ffffffff8133930a>] __delay+0xa/0x10
[ 86.530564] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 86.530564] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 86.530564] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 86.530564] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 86.530564] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 86.530564] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Code: 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 <48> c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43
[ 86.530564] NMI backtrace for cpu 2
[ 86.530564] CPU: 2 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007cb24b00 ti: ffff88007c680000 task.ti: ffff88007c680000
[ 86.530564] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
[ 86.530564] RSP: 0018:ffff88007c683db0 EFLAGS: 00000286
[ 86.530564] RAX: 0000000080000000 RBX: 000000b0f5d35a78 RCX: 0000000000000001
[ 86.530564] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
[ 86.530564] RBP: ffff88007c683dd0 R08: ffff88007c680000 R09: 0000000000000002
[ 86.530564] R10: 0000000000000000 R11: 0000000000000001 R12: 000000b0f5a85ab0
[ 86.530564] R13: 0000000000351e94 R14: 0000000000000002 R15: ffffffff820d5fe0
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.530564] Stack:
[ 86.530564] 0000000000000008 ffff88007c683e20 00000032bf972035 000000000000046f
[ 86.530564] ffff88007c683de0 ffffffff81339337 ffff88007c683e00 ffffffff810add86
[ 86.530564] 0000000000000000 0000000000000000 ffff88007c683ea8 ffffffff810ad458
[ 86.530564] Call Trace:
[ 86.530564] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 86.530564] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 86.530564] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
[ 86.530564] NMI backtrace for cpu 6
[ 86.530564] CPU: 6 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007cb22580 ti: ffff88007c624000 task.ti: ffff88007c624000
[ 86.530564] RIP: 0010:[<ffffffff810ad462>] [<ffffffff810ad462>] rcu_torture_reader+0x1b2/0x2e0
[ 86.530564] RSP: 0018:ffff88007c627e10 EFLAGS: 00000246
[ 86.530564] RAX: ffff88007cb22580 RBX: 0000000000000000 RCX: 00000000000493e0
[ 86.530564] RDX: 0000000000000000 RSI: ffff88007fad27d8 RDI: ffffffff810732f6
[ 86.530564] RBP: ffff88007c627ea8 R08: ffff88007c624000 R09: ffff88007fad53f0
[ 86.530564] R10: ffff88007c627e30 R11: 000000000000005a R12: 0000000000000000
[ 86.530564] R13: 00000032c47cf773 R14: 000000000000046f R15: ffffffff820d5fe0
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.530564] Stack:
[ 86.530564] 0000000000000000 0000000081a0a240 41b2bee7f92fd497 0000000000001179
[ 86.530564] ffff88007cc53d40 ffff88007c50bdf0 00000000fffcd063 ffffffff810ad590
[ 86.530564] 0000000000000000 ffffffff00000006 00000000ffffffff 0000000000000000
[ 86.530564] Call Trace:
[ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Code: 00 00 00 41 8b 4f 28 85 c9 75 07 f0 ff 05 13 8a 02 01 48 8b 05 80 89 02 01 48 8d 7c 24 10 ff 50 20 bf 01 00 00 00 e8 4e ac fc ff <4d> 63 67 10 48 8b 05 63 89 02 01 41 83 fc 0a 0f 8e ca fe ff ff
[ 86.530564] NMI backtrace for cpu 7
[ 86.530564] CPU: 7 PID: 788 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007cb25780 ti: ffff88007c684000 task.ti: ffff88007c684000
[ 86.530564] RIP: 0010:[<ffffffff81091ab0>] [<ffffffff81091ab0>] in_lock_functions+0x0/0x20
[ 86.530564] RSP: 0018:ffff88007c687df0 EFLAGS: 00000246
[ 86.530564] RAX: ffff88007c687ea8 RBX: ffffffff810732f6 RCX: 00000000000493e0
[ 86.530564] RDX: 0000000000000000 RSI: ffff88007faf27d8 RDI: ffffffff810732f6
[ 86.530564] RBP: ffff88007c687e00 R08: ffff88007c684000 R09: ffff88007faf53f0
[ 86.530564] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[ 86.530564] R13: 00000032c47d0479 R14: 000000000000046f R15: ffffffff820d5fe0
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.530564] Stack:
[ 86.530564] ffffffff81078130 0000000000000000 ffff88007c687ea8 ffffffff810ad462
[ 86.530564] 0000000000000000 0000000081a0a240 80b0c9268da6f193 0000000000000081
[ 86.530564] 0000000000000000 ffff88007c623e30 00000000fffcd063 ffffffff810ad590
[ 86.530564] Call Trace:
[ 86.530564] [<ffffffff81078130>] ? preempt_count_add+0x80/0xc0
[ 86.530564] [<ffffffff810ad462>] rcu_torture_reader+0x1b2/0x2e0
[ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Code: 81 48 c7 c2 1e 0a c9 81 be 4b 00 00 00 48 c7 c7 18 e1 c9 81 e8 d2 56 fc ff eb 80 55 48 89 7f 38 48 89 e5 5d c3 66 0f 1f 44 00 00 <55> 31 c0 48 81 ff c0 3f 8b 81 48 89 e5 72 0c 31 c0 48 81 ff fa
[ 86.530564] NMI backtrace for cpu 9
[ 86.530564] CPU: 9 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007c66a580 ti: ffff88007c654000 task.ti: ffff88007c654000
[ 86.530564] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
[ 86.530564] RSP: 0018:ffff88007c657db0 EFLAGS: 00000286
[ 86.530564] RAX: 0000000080000000 RBX: 000000b0f5d3e3fa RCX: 0000000000000001
[ 86.530564] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
[ 86.530564] RBP: ffff88007c657dd0 R08: ffff88007c654000 R09: ffff88007fb353f0
[ 86.530564] R10: ffff88007c657e30 R11: 0000000000000078 R12: 000000b0f5b422be
[ 86.530564] R13: 0000000000351e15 R14: 0000000000000009 R15: ffffffff820d5fe0
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fb20000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 000055f32cd5f720 CR3: 000000007b0a0000 CR4: 00000000000006e0
[ 86.530564] Stack:
[ 86.530564] 000000000000001c ffff88007c657e20 00000032c322cb52 000000000000046f
[ 86.530564] ffff88007c657de0 ffffffff81339337 ffff88007c657e00 ffffffff810add86
[ 86.530564] 0000000000000000 0000000000000000 ffff88007c657ea8 ffffffff810ad458
[ 86.530564] Call Trace:
[ 86.530564] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 86.530564] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 86.530564] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
[ 86.530564] NMI backtrace for cpu 10
[ 86.530564] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007cc98c80 ti: ffff88007cca4000 task.ti: ffff88007cca4000
[ 86.530564] RIP: 0010:[<ffffffff8133947a>] [<ffffffff8133947a>] delay_tsc+0x4a/0xc0
[ 86.530564] RSP: 0018:ffff88007fb43d78 EFLAGS: 00000002
[ 86.530564] RAX: 00000000f5d4115e RBX: ffff88007fb6cc00 RCX: 0000000000000104
[ 86.530564] RDX: 000000b0f5d4115e RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 86.530564] RBP: ffff88007fb43d98 R08: 0000000000000000 R09: 000000000000dec5
[ 86.530564] R10: 00000000034dd705 R11: 0000000002f96dbb R12: 000000b0f5d4115e
[ 86.530564] R13: 0000000000000001 R14: 000000000000000a R15: 0000000000000000
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.530564] Stack:
[ 86.530564] ffff88007fb6cc00 00000000b85120e5 0000000000000001 00000000cfbb42a0
[ 86.530564] ffff88007fb43da8 ffffffff8133930a ffff88007fb43dd8 ffffffff810930c7
[ 86.530564] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000
[ 86.530564] Call Trace:
[ 86.530564] <IRQ> \x01d [<ffffffff8133930a>] __delay+0xa/0x10
[ 86.530564] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 86.530564] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 86.530564] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 86.530564] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 86.530564] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 86.530564] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 86.530564] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 86.530564] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 86.530564] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 86.530564] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 86.530564] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 86.530564] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 86.530564] <EOI> \x01d [<ffffffff8100f303>] ? default_idle+0x13/0xd0
[ 86.530564] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 86.530564] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 86.530564] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 86.530564] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 86.530564] Code: c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f ae e8 <0f> 31 48 c1 e2 20 48 89 d3 48 09 c3 48 89 d8 4c 29 e0 49 39 c5
[ 86.530564] NMI backtrace for cpu 11
[ 86.530564] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
[ 86.530564] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 86.530564] RSP: 0000:ffff88007fb63dd0 EFLAGS: 00000046
[ 86.530564] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000b
[ 86.530564] RDX: 000000000000000b RSI: 0000000000000010 RDI: 0000000000000300
[ 86.530564] RBP: ffff88007fb63e08 R08: 0000000000000000 R09: 000000000000dec5
[ 86.530564] R10: ffff88007c63ff58 R11: 00000000000002cd R12: ffffffff81f31740
[ 86.530564] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000b
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.530564] Stack:
[ 86.530564] 0000000000000082 0000000b7fb63de0 000000000000ff40 0000000000000001
[ 86.530564] ffffffff8103fd20 00000000cfbb42a0 0000000000000000 ffff88007fb63e18
[ 86.530564] ffffffff8103fd36 ffff88007fb63e60 ffffffff81331299 ffffffff81008b50
[ 86.530564] Call Trace:
[ 86.530564] <IRQ> \x01d [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 86.530564] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 86.530564] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 86.530564] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 86.530564] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 86.530564] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 86.530564] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 86.530564] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 86.530564] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 86.530564] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 86.530564] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 86.530564] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 86.530564] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 86.530564] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 86.530564] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 86.530564] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 86.530564] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 86.530564] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 86.530564] [<ffffffff8104a612>] no_context+0x102/0x330
[ 86.530564] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 86.530564] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 86.530564] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 86.530564] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 86.530564] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 86.530564] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 86.530564] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 86.530564] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 86.530564] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 86.530564] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 86.530564] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 86.530564] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 86.530564] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 86.530564] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 86.530564] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 86.530564] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 86.530564] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 86.530564] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 86.530564] NMI backtrace for cpu 12
[ 86.530564] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007cb27080 ti: ffff88007c674000 task.ti: ffff88007c674000
[ 86.530564] RIP: 0010:[<ffffffff81339453>] [<ffffffff81339453>] delay_tsc+0x23/0xc0
[ 86.530564] RSP: 0000:ffff88007c677d00 EFLAGS: 00000002
[ 86.530564] RAX: 000000000000000c RBX: ffff88007fb6cc00 RCX: 0000000000000002
[ 86.530564] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 86.530564] RBP: ffff88007c677d20 R08: ffff88007c674000 R09: ffff88007fb6cc00
[ 86.530564] R10: ffff88007c677e30 R11: 000000000000002d R12: 00000000ab555708
[ 86.530564] R13: 0000000000000001 R14: 000000000000000c R15: ffff88007c677dd0
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.530564] Stack:
[ 86.530564] ffff88007fb6cc00 00000000ab555708 0000000000000001 00000000cfbb42a0
[ 86.530564] ffff88007c677d30 ffffffff8133930a ffff88007c677d60 ffffffff810930c7
[ 86.530564] 0000000000000286 ffff88007fb6cc00 ffff88007fb6cc00 000000000000cc00
[ 86.530564] Call Trace:
[ 86.530564] [<ffffffff8133930a>] __delay+0xa/0x10
[ 86.530564] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 86.530564] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 86.530564] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 86.530564] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 86.530564] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 86.530564] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Code: 5d 41 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 <0f> 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00
[ 86.530564] NMI backtrace for cpu 14
[ 86.530564] CPU: 14 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007cb26400 ti: ffff88007c670000 task.ti: ffff88007c670000
[ 86.530564] RIP: 0010:[<ffffffff810acb70>] [<ffffffff810acb70>] rcu_torture_read_lock+0x0/0x10
[ 86.530564] RSP: 0018:ffff88007c673e08 EFLAGS: 00000286
[ 86.530564] RAX: ffffffff81e47800 RBX: 0000000000000000 RCX: 0000000000000001
[ 86.530564] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff81c9f0eb
[ 86.530564] RBP: ffff88007c673ea8 R08: ffff88007c670000 R09: 0000000000000002
[ 86.530564] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[ 86.530564] R13: 00000032c47e38a4 R14: 000000000000046f R15: ffffffff820d5fe0
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.530564] Stack:
[ 86.530564] ffffffff810ad405 0000000000000000 0000000000015380 c7b7bbe7a8e3038e
[ 86.530564] 0000000000000b1c ffff88007cbbbe30 ffff88007c5f3e30 00000000fffcd063
[ 86.530564] ffffffff810ad590 0000000000000000 ffffffff0000000e 00000000ffffffff
[ 86.530564] Call Trace:
[ 86.530564] [<ffffffff810ad405>] ? rcu_torture_reader+0x155/0x2e0
[ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Code: 48 8d 3c 13 48 8b 0c 11 48 8b 14 37 89 c6 48 c7 c7 4c f0 c9 81 e8 70 ac 07 00 eb 94 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 e8 47 b1 ff ff 31 c0 5d c3 0f 1f 00 80 3d e1 ad d9
[ 86.530564] NMI backtrace for cpu 15
[ 86.530564] CPU: 15 PID: 778 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.530564] task: ffff88007c66d780 ti: ffff88007c664000 task.ti: ffff88007c664000
[ 86.530564] RIP: 0010:[<ffffffff810addac>] [<ffffffff810addac>] rcu_read_delay+0x5c/0xb0
[ 86.530564] RSP: 0018:ffff88007c667df0 EFLAGS: 00000202
[ 86.530564] RAX: 00000000000970a2 RBX: 0000000000000000 RCX: 0000000000001770
[ 86.530564] RDX: 000000000000087c RSI: ffff88007fbf27d8 RDI: ffff88007c667e20
[ 86.530564] RBP: ffff88007c667e00 R08: ffff88007c664000 R09: ffff88007fbf53f0
[ 86.530564] R10: ffff88007c667e30 R11: 0000000000000001 R12: ffff88007c667e20
[ 86.530564] R13: 00000032c47e463e R14: 000000000000046f R15: ffffffff820d5fe0
[ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.530564] Stack:
[ 86.530564] 0000000000000000 0000000000000000 ffff88007c667ea8 ffffffff810ad458
[ 86.530564] 0000000000000000 0000000081a0a240 7de1a6dcdd5cdd3f 000000000000140e
[ 86.530564] ffff88007c5e3de0 ffff88007fbecf60 00000000fffcd063 ffffffff810ad590
[ 86.530564] Call Trace:
[ 86.530564] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.530564] Code: e8 8a b5 28 00 48 83 eb 01 75 f0 4c 89 e7 e8 6c 83 07 00 48 63 15 d9 94 02 01 48 8d 14 92 48 8d 0c 92 31 d2 48 c1 e1 04 48 f7 f1 <48> 85 d2 74 3c 65 8b 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41
[ 86.637011] BUG: spinlock lockup suspected on CPU#10, swapper/10/0
[ 86.637011] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/794, .owner_cpu: 11
[ 86.637011] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] ffff88007fb6cc00 ffff88007fb43d88 ffffffff8132cd6c ffff88007c67a580
[ 86.637011] ffff88007fb43da8 ffffffff81092fb3 ffff88007fb6cc00 00000000cfbb42a0
[ 86.637011] ffff88007fb43dd8 ffffffff810930db ffff88007fb6cc00 ffffffff820d8c80
[ 86.637011] Call Trace:
[ 86.637011] <IRQ> [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 86.637011] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 86.637011] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 86.637011] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 86.637011] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 86.637011] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 86.637011] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 86.637011] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 86.637011] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 86.637011] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 86.637011] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 86.637011] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 86.637011] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 86.637011] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 86.637011] <EOI> [<ffffffff8100f303>] ? default_idle+0x13/0xd0
[ 86.637011] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 86.637011] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 86.637011] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 86.637011] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 86.637011] Sending NMI to all CPUs:
[ 86.637011] NMI backtrace for cpu 0
[ 86.637011] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007c66be80 ti: ffff88007c660000 task.ti: ffff88007c660000
[ 86.637011] RIP: 0010:[<ffffffff81339453>] [<ffffffff81339453>] delay_tsc+0x23/0xc0
[ 86.637011] RSP: 0018:ffff88007c663d00 EFLAGS: 00000002
[ 86.637011] RAX: 0000000000000000 RBX: ffff88007fbacc00 RCX: 0000000000000002
[ 86.637011] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 86.637011] RBP: ffff88007c663d20 R08: ffff88007c660000 R09: ffff88007fbacc00
[ 86.637011] R10: ffff88007c663e30 R11: 0000000000000001 R12: 00000000bfcdebc0
[ 86.637011] R13: 0000000000000001 R14: 0000000000000000 R15: ffff88007c663dd0
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 000055f32cd75020 CR3: 0000000001e0f000 CR4: 00000000000006f0
[ 86.637011] Stack:
[ 86.637011] ffff88007fbacc00 00000000bfcdebc0 0000000000000001 00000000cfbb42a0
[ 86.637011] ffff88007c663d30 ffffffff8133930a ffff88007c663d60 ffffffff810930c7
[ 86.637011] 0000000000000286 ffff88007fbacc00 ffff88007fbacc00 000000000000cc00
[ 86.637011] Call Trace:
[ 86.637011] [<ffffffff8133930a>] __delay+0xa/0x10
[ 86.637011] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 86.637011] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 86.637011] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 86.637011] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 86.637011] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 86.637011] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] Code: 5d 41 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 <0f> 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00
[ 86.637011] NMI backtrace for cpu 2
[ 86.637011] CPU: 2 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007cb24b00 ti: ffff88007c680000 task.ti: ffff88007c680000
[ 86.637011] RIP: 0010:[<ffffffff810780b0>] [<ffffffff810780b0>] preempt_count_add+0x0/0xc0
[ 86.637011] RSP: 0018:ffff88007c683da8 EFLAGS: 00000286
[ 86.637011] RAX: 0000000080000000 RBX: 000000bbab34b2ec RCX: 0000000000000001
[ 86.637011] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 0000000000000001
[ 86.637011] RBP: ffff88007c683dd0 R08: ffff88007c680000 R09: ffff88007fa553f0
[ 86.637011] R10: 0000000000000000 R11: 0000000000000001 R12: 000000bbab1b5ef0
[ 86.637011] R13: 0000000000351e94 R14: 0000000000000002 R15: ffffffff820d5fe0
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.637011] Stack:
[ 86.637011] ffffffff8133946d 0000000000000006 ffff88007c683e20 00000035d5ff8437
[ 86.637011] 000000000000046f ffff88007c683de0 ffffffff81339337 ffff88007c683e00
[ 86.637011] ffffffff810add86 0000000000000000 0000000000000000 ffff88007c683ea8
[ 86.637011] Call Trace:
[ 86.637011] [<ffffffff8133946d>] ? delay_tsc+0x3d/0xc0
[ 86.637011] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 86.637011] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 86.637011] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] Code: 3d ba b3 e9 00 00 75 b4 be 44 01 00 00 48 c7 c7 fb dd c9 81 e8 72 f1 fd ff c6 05 a0 b3 e9 00 01 eb 9a 66 0f 1f 84 00 00 00 00 00 <8b> 15 02 a7 01 01 55 65 01 3d d2 2c f9 7e 48 89 e5 53 89 fb 85
[ 86.637011] NMI backtrace for cpu 6
[ 86.637011] CPU: 6 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007cb22580 ti: ffff88007c624000 task.ti: ffff88007c624000
[ 86.637011] RIP: 0010:[<ffffffff810addac>] [<ffffffff810addac>] rcu_read_delay+0x5c/0xb0
[ 86.637011] RSP: 0018:ffff88007c627df0 EFLAGS: 00000202
[ 86.637011] RAX: 000000000005640c RBX: 0000000000000000 RCX: 0000000000001770
[ 86.637011] RDX: 0000000000000b4f RSI: ffff88007fad27d8 RDI: ffff88007c627e20
[ 86.637011] RBP: ffff88007c627e00 R08: ffff88007c624000 R09: ffff88007fad53f0
[ 86.637011] R10: ffff88007c627e30 R11: 000000000000005a R12: ffff88007c627e20
[ 86.637011] R13: 00000035db3bb386 R14: 000000000000046f R15: ffffffff820d5fe0
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.637011] Stack:
[ 86.637011] 0000000000000000 0000000000000000 ffff88007c627ea8 ffffffff810ad458
[ 86.637011] 0000000000000000 0000000081a0a240 770957c6e48f7e58 00000000000011d6
[ 86.637011] ffff88007cc53d40 ffff88007c50bdf0 00000000fffcd063 ffffffff810ad590
[ 86.637011] Call Trace:
[ 86.637011] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] Code: e8 8a b5 28 00 48 83 eb 01 75 f0 4c 89 e7 e8 6c 83 07 00 48 63 15 d9 94 02 01 48 8d 14 92 48 8d 0c 92 31 d2 48 c1 e1 04 48 f7 f1 <48> 85 d2 74 3c 65 8b 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41
[ 86.637011] NMI backtrace for cpu 7
[ 86.637011] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007cb21900 ti: ffff88007c620000 task.ti: ffff88007c620000
[ 86.637011] RIP: 0010:[<ffffffff81347fe8>] [<ffffffff81347fe8>] check_preemption_disabled+0x8/0xe0
[ 86.637011] RSP: 0018:ffff88007c623d90 EFLAGS: 00000246
[ 86.637011] RAX: 0000000080000001 RBX: 000000bbab350fbc RCX: 0000000000000001
[ 86.637011] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 86.637011] RBP: ffff88007c623da0 R08: ffff88007c620000 R09: 0000000000000002
[ 86.637011] R10: 0000000000000000 R11: 0000000000000001 R12: 000000bbab33726c
[ 86.637011] R13: 00000000000a9fc1 R14: 0000000000000007 R15: ffffffff820d5fe0
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.637011] Stack:
[ 86.637011] ffff88007c623da0 ffffffff813480d7 ffff88007c623dd0 ffffffff81339472
[ 86.637011] 0000000000000000 ffff88007c623e20 00000035db3b4939 000000000000046f
[ 86.637011] ffff88007c623de0 ffffffff81339337 ffff88007c623e00 ffffffff810addf7
[ 86.637011] Call Trace:
[ 86.637011] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 86.637011] [<ffffffff81339472>] delay_tsc+0x42/0xc0
[ 86.637011] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 86.637011] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
[ 86.637011] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] Code: 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 65 8b 05 a8 2d cc 7e <48> 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff
[ 86.637011] NMI backtrace for cpu 9
[ 86.637011] CPU: 9 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007c66a580 ti: ffff88007c654000 task.ti: ffff88007c654000
[ 86.637011] RIP: 0010:[<ffffffff810ad367>] [<ffffffff810ad367>] rcu_torture_reader+0xb7/0x2e0
[ 86.637011] RSP: 0018:ffff88007c657e10 EFLAGS: 00000202
[ 86.637011] RAX: ffffffff81e47800 RBX: ffffffffffffffff RCX: 00000000000493e0
[ 86.637011] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81cbdff8
[ 86.637011] RBP: ffff88007c657ea8 R08: ffff88007c654000 R09: ffff88007fb353f0
[ 86.637011] R10: ffff88007c657e30 R11: 0000000000000078 R12: 0000000000000000
[ 86.637011] R13: 00000035db3bcddb R14: 000000000000046f R15: ffffffff820d5fe0
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fb20000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 000055f32cd5f720 CR3: 000000007b0a0000 CR4: 00000000000006e0
[ 86.637011] Stack:
[ 86.637011] 0000000000000000 0000000081a0a240 65698c08e52fd545 0000000000000aad
[ 86.637011] 0000000000000000 ffff88007fb2cf60 00000000fffcd063 ffffffff810ad590
[ 86.637011] 0000000000000000 ffffffff00000009 00000000ffffffff 0000000000000000
[ 86.637011] Call Trace:
[ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] Code: e9 9a 00 00 00 ff 50 38 41 83 fc 01 48 89 c3 0f 8f 32 01 00 00 48 c7 c7 59 97 d2 81 4c 29 f3 e8 80 ad 29 00 48 8b 05 69 8a 02 01 <48> c7 c7 59 97 d2 81 65 4a ff 04 e5 40 cb 00 00 48 83 78 30 01
[ 86.637011] NMI backtrace for cpu 10
[ 86.637011] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007cc98c80 ti: ffff88007cca4000 task.ti: ffff88007cca4000
[ 86.637011] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 86.637011] RSP: 0018:ffff88007fb43d08 EFLAGS: 00000046
[ 86.637011] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000a
[ 86.637011] RDX: 000000000000000a RSI: 0000000000000010 RDI: 0000000000000300
[ 86.637011] RBP: ffff88007fb43d40 R08: 0000000000000000 R09: 000000000000dec5
[ 86.637011] R10: ffff88007cca7f58 R11: 0000000000000434 R12: ffffffff81f31740
[ 86.637011] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000a
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.637011] Stack:
[ 86.637011] 0000000000000082 0000000a7fb43d18 000000000000ff40 0000000000000001
[ 86.637011] ffffffff8103fd20 00000000cfbb42a0 0000000000000000 ffff88007fb43d50
[ 86.637011] ffffffff8103fd36 ffff88007fb43d98 ffffffff81331299 ffffffff81008b50
[ 86.637011] Call Trace:
[ 86.637011] <IRQ> \x01d [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 86.637011] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 86.637011] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 86.637011] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 86.637011] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 86.637011] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 86.637011] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 86.637011] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 86.637011] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 86.637011] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 86.637011] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 86.637011] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 86.637011] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 86.637011] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 86.637011] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 86.637011] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 86.637011] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 86.637011] <EOI> \x01d [<ffffffff8100f303>] ? default_idle+0x13/0xd0
[ 86.637011] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 86.637011] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 86.637011] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 86.637011] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 86.637011] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 86.637011] NMI backtrace for cpu 11
[ 86.637011] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
[ 86.637011] RIP: 0010:[<ffffffff810920b1>] [<ffffffff810920b1>] queued_spin_lock_slowpath+0x171/0x1a0
[ 86.637011] RSP: 0000:ffff88007fb63e58 EFLAGS: 00000002
[ 86.637011] RAX: 0000000000000101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
[ 86.637011] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 86.637011] RBP: ffff88007fb63e70 R08: 00000000000006e7 R09: 0000000000000418
[ 86.637011] R10: ffff88007c63ff58 R11: 0000000000000418 R12: 00000000cfbb42a0
[ 86.637011] R13: 0000000000000001 R14: 00000000cfbb42a0 R15: 0000000000000000
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.637011] Stack:
[ 86.637011] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb63ea0
[ 86.637011] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
[ 86.637011] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
[ 86.637011] Call Trace:
[ 86.637011] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 86.637011] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 86.637011] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 86.637011] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 86.637011] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 86.637011] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 86.637011] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 86.637011] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 86.637011] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 86.637011] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 86.637011] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 86.637011] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 86.637011] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 86.637011] [<ffffffff8104a612>] no_context+0x102/0x330
[ 86.637011] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 86.637011] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 86.637011] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 86.637011] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 86.637011] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 86.637011] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 86.637011] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 86.637011] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 86.637011] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 86.637011] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 86.637011] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 86.637011] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 86.637011] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 86.637011] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 86.637011] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 86.637011] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 86.637011] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 86.637011] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] Code: d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 8b 03 <84> c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 f3 90
[ 86.637011] NMI backtrace for cpu 12
[ 86.637011] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007cb27080 ti: ffff88007c674000 task.ti: ffff88007c674000
[ 86.637011] RIP: 0010:[<ffffffff81339453>] [<ffffffff81339453>] delay_tsc+0x23/0xc0
[ 86.637011] RSP: 0000:ffff88007c677d00 EFLAGS: 00000002
[ 86.637011] RAX: 000000000000000c RBX: ffff88007fb6cc00 RCX: 0000000000000002
[ 86.637011] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 86.637011] RBP: ffff88007c677d20 R08: ffff88007c674000 R09: ffff88007fb6cc00
[ 86.637011] R10: ffff88007c677e30 R11: 000000000000002d R12: 00000000bc78e940
[ 86.637011] R13: 0000000000000001 R14: 000000000000000c R15: ffff88007c677dd0
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.637011] Stack:
[ 86.637011] ffff88007fb6cc00 00000000bc78e940 0000000000000001 00000000cfbb42a0
[ 86.637011] ffff88007c677d30 ffffffff8133930a ffff88007c677d60 ffffffff810930c7
[ 86.637011] 0000000000000286 ffff88007fb6cc00 ffff88007fb6cc00 000000000000cc00
[ 86.637011] Call Trace:
[ 86.637011] [<ffffffff8133930a>] __delay+0xa/0x10
[ 86.637011] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 86.637011] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 86.637011] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 86.637011] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 86.637011] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 86.637011] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] Code: 5d 41 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 <0f> 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00
[ 86.637011] NMI backtrace for cpu 14
[ 86.637011] CPU: 14 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007cb20000 ti: ffff88007c5f0000 task.ti: ffff88007c5f0000
[ 86.637011] RIP: 0010:[<ffffffff8133947c>] [<ffffffff8133947c>] delay_tsc+0x4c/0xc0
[ 86.637011] RSP: 0018:ffff88007c5f3db0 EFLAGS: 00000246
[ 86.637011] RAX: 00000000ab382c5e RBX: 000000bbab382bb2 RCX: 0000000000000001
[ 86.637011] RDX: 00000000000000bb RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 86.637011] RBP: ffff88007c5f3dd0 R08: ffff88007c5f0000 R09: 0000000000000002
[ 86.637011] R10: 0000000000000000 R11: 0000000000000001 R12: 000000bbab1b3e52
[ 86.637011] R13: 0000000000352dff R14: 000000000000000e R15: ffffffff820d5fe0
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.637011] Stack:
[ 86.637011] 000000000000000a ffff88007c5f3e20 00000035d411b4b5 000000000000046f
[ 86.637011] ffff88007c5f3de0 ffffffff81339337 ffff88007c5f3e00 ffffffff810add86
[ 86.637011] 0000000000000000 0000000000000000 ffff88007c5f3ea8 ffffffff810ad458
[ 86.637011] Call Trace:
[ 86.637011] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 86.637011] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 86.637011] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] Code: ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f ae e8 0f 31 <48> c1 e2 20 48 89 d3 48 09 c3 48 89 d8 4c 29 e0 49 39 c5 76 24
[ 86.637011] NMI backtrace for cpu 15
[ 86.637011] CPU: 15 PID: 778 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 86.637011] task: ffff88007c66d780 ti: ffff88007c664000 task.ti: ffff88007c664000
[ 86.637011] RIP: 0010:[<ffffffff81347fe1>] [<ffffffff81347fe1>] check_preemption_disabled+0x1/0xe0
[ 86.637011] RSP: 0018:ffff88007c667df0 EFLAGS: 00000246
[ 86.637011] RAX: ffffffff81e47800 RBX: 0000000000000000 RCX: 00000000000493e0
[ 86.637011] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81cbdff8
[ 86.637011] RBP: ffff88007c667e00 R08: ffff88007c664000 R09: ffff88007fbf53f0
[ 86.637011] R10: ffff88007c667e30 R11: 0000000000000001 R12: 0000000000000000
[ 86.637011] R13: 00000035db3cb383 R14: 000000000000046f R15: ffffffff820d5fe0
[ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 86.637011] Stack:
[ 86.637011] ffff88007c667e00 ffffffff813480f3 ffff88007c667ea8 ffffffff810ad385
[ 86.637011] 0000000000000000 0000000081a0a240 294a84bcaaa92a92 0000000000000890
[ 86.637011] ffff88007c5e3de0 ffff88007fbecf60 00000000fffcd063 ffffffff810ad590
[ 86.637011] Call Trace:
[ 86.637011] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 86.637011] [<ffffffff810ad385>] rcu_torture_reader+0xd5/0x2e0
[ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 86.637011] Code: 00 00 00 49 89 f7 c7 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 <65> 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 41 54 53 65 8b 1d 27
[ 91.202005] BUG: spinlock lockup suspected on CPU#0, rcu_torture_rea/777
[ 91.202005] lock: 0xffff88007fbacc00, .magic: dead4ead, .owner: torture_onoff/794, .owner_cpu: 11
[ 91.202005] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] ffff88007fbacc00 ffff88007c663d10 ffffffff8132cd6c ffff88007c67a580
[ 91.202005] ffff88007c663d30 ffffffff81092fb3 ffff88007fbacc00 00000000cfbb42a0
[ 91.202005] ffff88007c663d60 ffffffff810930db 0000000000000286 ffff88007fbacc00
[ 91.202005] Call Trace:
[ 91.202005] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 91.202005] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 91.202005] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 91.202005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 91.202005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 91.202005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 91.202005] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 91.202005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Sending NMI to all CPUs:
[ 91.202005] NMI backtrace for cpu 0
[ 91.202005] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007c66be80 ti: ffff88007c660000 task.ti: ffff88007c660000
[ 91.202005] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 91.202005] RSP: 0018:ffff88007c663c90 EFLAGS: 00000046
[ 91.202005] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000000
[ 91.202005] RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000300
[ 91.202005] RBP: ffff88007c663cc8 R08: 0000000000000000 R09: 000000000000dec5
[ 91.202005] R10: ffff88007c663f58 R11: 000000000000059a R12: ffffffff81f31740
[ 91.202005] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000000
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 000055f32cd75020 CR3: 0000000001e0f000 CR4: 00000000000006f0
[ 91.202005] Stack:
[ 91.202005] 0000000000000086 000000007c663ca0 000000000000ff40 0000000000000001
[ 91.202005] ffffffff8103fd20 00000000cfbb42a0 ffff88007c663dd0 ffff88007c663cd8
[ 91.202005] ffffffff8103fd36 ffff88007c663d20 ffffffff81331299 ffffffff81008b50
[ 91.202005] Call Trace:
[ 91.202005] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 91.202005] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 91.202005] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 91.202005] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 91.202005] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 91.202005] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 91.202005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 91.202005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 91.202005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 91.202005] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 91.202005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 91.202005] NMI backtrace for cpu 2
[ 91.202005] CPU: 2 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007cb24b00 ti: ffff88007c680000 task.ti: ffff88007c680000
[ 91.202005] RIP: 0010:[<ffffffff8112610e>] [<ffffffff8112610e>] torture_random+0xe/0x50
[ 91.202005] RSP: 0018:ffff88007c683de8 EFLAGS: 00000a03
[ 91.202005] RAX: 5a933880b777f184 RBX: 0000000000000000 RCX: 0000000000000001
[ 91.202005] RDX: 0000000000000000 RSI: ffff88007fa527d8 RDI: ffff88007c683e20
[ 91.202005] RBP: ffff88007c683e00 R08: ffff88007c680000 R09: 0000000000000002
[ 91.202005] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88007c683e20
[ 91.202005] R13: 00000037e5c0c22c R14: 000000000000046f R15: ffffffff820d5fe0
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202005] Stack:
[ 91.202005] ffffffff810add5f 0000000000000000 0000000000000000 ffff88007c683ea8
[ 91.202005] ffffffff810ad458 0000000000000000 0000000081a0a240 eecf9ea3d6081d84
[ 91.202005] 0000000000001e73 ffff88007c5e7e30 ffff88007fa4cf60 00000000fffcd063
[ 91.202005] Call Trace:
[ 91.202005] [<ffffffff810add5f>] ? rcu_read_delay+0xf/0xb0
[ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Code: b2 fd 00 48 c7 c7 69 ef c9 81 e8 dd 16 00 00 48 8b 03 eb d5 66 0f 1f 84 00 00 00 00 00 48 83 6f 08 01 78 14 48 69 07 01 15 61 02 <48> 05 65 fc 8c 1c 48 89 07 c1 c0 10 c3 55 48 89 e5 53 48 89 fb
[ 91.202005] NMI backtrace for cpu 6
[ 91.202005] CPU: 6 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007cb22580 ti: ffff88007c624000 task.ti: ffff88007c624000
[ 91.202005] RIP: 0010:[<ffffffff810ad39b>] [<ffffffff810ad39b>] rcu_torture_reader+0xeb/0x2e0
[ 91.202005] RSP: 0018:ffff88007c627e10 EFLAGS: 00000207
[ 91.202005] RAX: 000000000000000a RBX: 0000000000000000 RCX: 00000000000493e0
[ 91.202005] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81cbdff8
[ 91.202005] RBP: ffff88007c627ea8 R08: ffff88007c624000 R09: ffff88007fad53f0
[ 91.202005] R10: ffff88007c627e30 R11: 000000000000005a R12: 0000000000000000
[ 91.202005] R13: 00000037e5c0cf9a R14: 000000000000046f R15: ffffffff820d5fe0
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202005] Stack:
[ 91.202005] 0000000000000000 0000000081a0a240 cbee22ce8ab059c0 0000000000001190
[ 91.202005] ffff88007cc53d40 ffff88007c50bdf0 00000000fffcd063 ffffffff810ad590
[ 91.202005] 0000000000000000 ffffffff00000006 00000000ffffffff 0000000000000000
[ 91.202005] Call Trace:
[ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Code: ff 04 e5 40 cb 00 00 48 83 78 30 01 48 83 db ff e8 5b ad 29 00 48 83 fb 0a b8 0a 00 00 00 48 0f 47 d8 65 48 ff 04 dd e0 ca 00 00 <bf> 01 00 00 00 e8 ab ab fc ff 65 8b 05 e4 d9 f5 7e 85 c0 0f 84
[ 91.202005] NMI backtrace for cpu 7
[ 91.202005] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007cb21900 ti: ffff88007c620000 task.ti: ffff88007c620000
[ 91.202005] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
[ 91.202005] RSP: 0018:ffff88007c623db0 EFLAGS: 00000286
[ 91.202005] RAX: 0000000080000000 RBX: 000000c2beb23b20 RCX: 0000000000000001
[ 91.202005] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
[ 91.202005] RBP: ffff88007c623dd0 R08: ffff88007c620000 R09: ffff88007faf53f0
[ 91.202005] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c2beb06098
[ 91.202005] R13: 0000000000351ec1 R14: 0000000000000007 R15: ffffffff820d5fe0
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202005] Stack:
[ 91.202005] 0000000000000028 ffff88007c623e20 00000037e496c4c4 000000000000046f
[ 91.202005] ffff88007c623de0 ffffffff81339337 ffff88007c623e00 ffffffff810add86
[ 91.202005] 0000000000000000 0000000000000000 ffff88007c623ea8 ffffffff810ad458
[ 91.202005] Call Trace:
[ 91.202005] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 91.202005] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
[ 91.202005] NMI backtrace for cpu 9
[ 91.202005] CPU: 9 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007c66a580 ti: ffff88007c654000 task.ti: ffff88007c654000
[ 91.202005] RIP: 0010:[<ffffffff810addde>] [<ffffffff810addde>] rcu_read_delay+0x8e/0xb0
[ 91.202005] RSP: 0018:ffff88007c657df0 EFLAGS: 00000246
[ 91.202005] RAX: 0000000000003642 RBX: 0000000000000000 RCX: 00000000000493e0
[ 91.202005] RDX: 000000000003761e RSI: ffff88007fb327d8 RDI: ffff88007c657e20
[ 91.202005] RBP: ffff88007c657e00 R08: ffff88007c654000 R09: ffff88007fb353f0
[ 91.202005] R10: ffff88007c657e30 R11: 0000000000000078 R12: ffff88007c657e20
[ 91.202005] R13: 00000037e5c0ea8d R14: 000000000000046f R15: ffffffff820d5fe0
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fb20000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 000055f32cd5f720 CR3: 000000007b0a0000 CR4: 00000000000006e0
[ 91.202005] Stack:
[ 91.202005] 0000000000000000 0000000000000000 ffff88007c657ea8 ffffffff810ad458
[ 91.202005] 0000000000000000 0000000081a0a240 27e1079dd5def862 0000000000000363
[ 91.202005] 0000000000000000 ffff88007fb2cf60 00000000fffcd063 ffffffff810ad590
[ 91.202005] Call Trace:
[ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Code: 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41 5c 5d c3 4c 89 e7 e8 34 83 07 00 69 0d 9e 94 02 01 20 4e 00 00 31 d2 48 63 c9 48 f7 f1 <48> 85 d2 75 dc e8 28 1b 80 00 5b 41 5c 5d c3 bf 78 1b 0d 00 e8
[ 91.202005] NMI backtrace for cpu 10
[ 91.202005] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007cc98c80 ti: ffff88007cca4000 task.ti: ffff88007cca4000
[ 91.202005] RIP: 0010:[<ffffffff81092067>] [<ffffffff81092067>] queued_spin_lock_slowpath+0x127/0x1a0
[ 91.202005] RSP: 0018:ffff88007fb43d90 EFLAGS: 00000002
[ 91.202005] RAX: 0000000000000000 RBX: ffff88007fb6cc00 RCX: ffff88007fb55e80
[ 91.202005] RDX: 00000000002c0101 RSI: ffffffff81ca0d44 RDI: 00000000002c0000
[ 91.202005] RBP: ffff88007fb43da8 R08: 0000000000000000 R09: 0000000000000583
[ 91.202005] R10: ffff88007cca7f58 R11: 0000000000000583 R12: 0000000000000000
[ 91.202005] R13: ffff88007fb55e80 R14: 00000000cfbb42a0 R15: 0000000000000000
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202005] Stack:
[ 91.202005] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb43dd8
[ 91.202005] ffffffff81093185 ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00
[ 91.202005] 0000000000000000 ffff88007fb43df0 ffffffff818b3fda 000000000000000b
[ 91.202005] Call Trace:
[ 91.202005] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 91.202005] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 91.202005] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 91.202005] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 91.202005] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 91.202005] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 91.202005] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 91.202005] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 91.202005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 91.202005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 91.202005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 91.202005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 91.202005] <EOI> \x01d [<ffffffff8100f303>] ? default_idle+0x13/0xd0
[ 91.202005] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 91.202005] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 91.202005] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 91.202005] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 91.202005] Code: 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 <8b> 13 66 85 d2 75 f7 be 01 00 00 00 eb 10 89 d0 f0 0f b1 33 39
[ 91.202005] NMI backtrace for cpu 11
[ 91.202005] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
[ 91.202005] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 91.202005] RSP: 0000:ffff88007fb63e58 EFLAGS: 00000002
[ 91.202005] RAX: 00000000002c0101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
[ 91.202005] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 91.202005] RBP: ffff88007fb63e70 R08: 00000000000006e7 R09: 0000000000000418
[ 91.202005] R10: ffff88007c63ff58 R11: 0000000000000418 R12: 00000000cfbb42a0
[ 91.202005] R13: 0000000000000001 R14: 00000000cfbb42a0 R15: 0000000000000000
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202005] Stack:
[ 91.202005] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb63ea0
[ 91.202005] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
[ 91.202005] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
[ 91.202005] Call Trace:
[ 91.202005] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 91.202005] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 91.202005] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 91.202005] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 91.202005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 91.202005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 91.202005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 91.202005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 91.202005] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 91.202005] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 91.202005] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 91.202005] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 91.202005] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 91.202005] [<ffffffff8104a612>] no_context+0x102/0x330
[ 91.202005] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 91.202005] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 91.202005] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 91.202005] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 91.202005] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 91.202005] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 91.202005] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 91.202005] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 91.202005] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 91.202005] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 91.202005] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 91.202005] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 91.202005] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 91.202005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 91.202005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 91.202005] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 91.202005] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 91.202005] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 91.202005] NMI backtrace for cpu 12
[ 91.202005] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007cb27080 ti: ffff88007c674000 task.ti: ffff88007c674000
[ 91.202005] RIP: 0010:[<ffffffff81339453>] [<ffffffff81339453>] delay_tsc+0x23/0xc0
[ 91.202005] RSP: 0000:ffff88007c677d00 EFLAGS: 00000002
[ 91.202005] RAX: 000000000000000c RBX: ffff88007fb6cc00 RCX: 0000000000000002
[ 91.202005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 91.202005] RBP: ffff88007c677d20 R08: ffff88007c674000 R09: ffff88007fb6cc00
[ 91.202005] R10: ffff88007c677e30 R11: 000000000000002d R12: 00000000c7d753c2
[ 91.202005] R13: 0000000000000001 R14: 000000000000000c R15: ffff88007c677dd0
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202005] Stack:
[ 91.202005] ffff88007fb6cc00 00000000c7d753c2 0000000000000001 00000000cfbb42a0
[ 91.202005] ffff88007c677d30 ffffffff8133930a ffff88007c677d60 ffffffff810930c7
[ 91.202005] 0000000000000286 ffff88007fb6cc00 ffff88007fb6cc00 000000000000cc00
[ 91.202005] Call Trace:
[ 91.202005] [<ffffffff8133930a>] __delay+0xa/0x10
[ 91.202005] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 91.202005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 91.202005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 91.202005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 91.202005] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 91.202005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Code: 5d 41 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 <0f> 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00
[ 91.202005] NMI backtrace for cpu 14
[ 91.202005] CPU: 14 PID: 785 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007cb23200 ti: ffff88007cbb8000 task.ti: ffff88007cbb8000
[ 91.202005] RIP: 0010:[<ffffffff81078120>] [<ffffffff81078120>] preempt_count_add+0x70/0xc0
[ 91.202005] RSP: 0018:ffff88007cbbbd98 EFLAGS: 00000246
[ 91.202005] RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
[ 91.202005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: 0000000000000001
[ 91.202005] RBP: ffff88007cbbbda0 R08: ffff88007cbb8000 R09: 0000000000000002
[ 91.202005] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c2beb198e2
[ 91.202005] R13: 00000000000aa2cd R14: 000000000000000e R15: ffffffff820d5fe0
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202005] Stack:
[ 91.202005] 000000c2beb32182 ffff88007cbbbdd0 ffffffff8133946d 0000000000000000
[ 91.202005] ffff88007cbbbe20 00000037e5c0ae24 000000000000046f ffff88007cbbbde0
[ 91.202005] ffffffff81339337 ffff88007cbbbe00 ffffffff810addf7 0000000000000000
[ 91.202005] Call Trace:
[ 91.202005] [<ffffffff8133946d>] delay_tsc+0x3d/0xc0
[ 91.202005] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 91.202005] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
[ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Code: 8b 05 a5 07 0a 01 85 c0 75 da 48 c7 c1 f0 57 c9 81 48 c7 c2 1e 0a c9 81 be e1 0b 00 00 48 c7 c7 fb dd c9 81 e8 52 f0 fd ff eb b9 <48> 8b 45 00 48 8b 58 08 48 89 df e8 80 99 01 00 85 c0 75 13 65
[ 91.202005] NMI backtrace for cpu 15
[ 91.202005] CPU: 15 PID: 778 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202005] task: ffff88007c66d780 ti: ffff88007c664000 task.ti: ffff88007c664000
[ 91.202005] RIP: 0010:[<ffffffff810add72>] [<ffffffff810add72>] rcu_read_delay+0x22/0xb0
[ 91.202005] RSP: 0018:ffff88007c667df0 EFLAGS: 00000246
[ 91.202005] RAX: 0000000000000036 RBX: 0000000000000000 RCX: 000000000016e360
[ 91.202005] RDX: 0000000000103495 RSI: ffff88007fbf27d8 RDI: ffff88007c667e20
[ 91.202005] RBP: ffff88007c667e00 R08: ffff88007c664000 R09: ffff88007fbf53f0
[ 91.202005] R10: ffff88007c667e30 R11: 0000000000000001 R12: ffff88007c667e20
[ 91.202005] R13: 00000037e5c12d14 R14: 000000000000046f R15: ffffffff820d5fe0
[ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202005] Stack:
[ 91.202005] 0000000000000000 0000000000000000 ffff88007c667ea8 ffffffff810ad458
[ 91.202005] 0000000000000000 0000000081a0a240 c0b2cf292ad504e4 00000000000018bf
[ 91.202005] ffff88007c5e3de0 ffff88007fbecf60 00000000fffcd063 ffffffff810ad590
[ 91.202005] Call Trace:
[ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202005] Code: ff ff 5d c3 0f 1f 44 00 00 55 48 89 e5 41 54 53 49 89 fc e8 a1 83 07 00 48 63 0d 0e 95 02 01 31 d2 48 69 c9 a0 86 01 00 48 f7 f1 <48> 85 d2 75 15 bb 32 00 00 00 bf 58 89 41 00 e8 8a b5 28 00 48
[ 91.202004] BUG: spinlock lockup suspected on CPU#12, rcu_torture_rea/790
[ 91.202004] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/794, .owner_cpu: 11
[ 91.202004] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] ffff88007fb6cc00 ffff88007c677d10 ffffffff8132cd6c ffff88007c67a580
[ 91.202004] ffff88007c677d30 ffffffff81092fb3 ffff88007fb6cc00 00000000cfbb42a0
[ 91.202004] ffff88007c677d60 ffffffff810930db 0000000000000286 ffff88007fb6cc00
[ 91.202004] Call Trace:
[ 91.202004] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 91.202004] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 91.202004] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 91.202004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 91.202004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 91.202004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 91.202004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 91.202004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Sending NMI to all CPUs:
[ 91.202004] NMI backtrace for cpu 0
[ 91.202004] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007c66be80 ti: ffff88007c660000 task.ti: ffff88007c660000
[ 91.202004] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 91.202004] RSP: 0018:ffff88007c663d18 EFLAGS: 00000002
[ 91.202004] RAX: 0000000000000101 RBX: ffff88007fbacc00 RCX: 0000000000000001
[ 91.202004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 91.202004] RBP: ffff88007c663d30 R08: 00000000000006e7 R09: 00000000000006e4
[ 91.202004] R10: ffff88007c663f58 R11: 00000000000006e4 R12: 00000000cfbb42a0
[ 91.202004] R13: 0000000000000001 R14: 00000000cfbb42a0 R15: ffff88007c663dd0
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 000055f32cd75020 CR3: 0000000001e0f000 CR4: 00000000000006f0
[ 91.202004] Stack:
[ 91.202004] ffff88007fbacc00 00000000cfbb42a0 0000000000000001 ffff88007c663d60
[ 91.202004] ffffffff81093185 0000000000000286 ffff88007fbacc00 ffff88007fbacc00
[ 91.202004] 000000000000cc00 ffff88007c663d80 ffffffff818b401f 000000000000000d
[ 91.202004] Call Trace:
[ 91.202004] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 91.202004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 91.202004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 91.202004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 91.202004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
[ 91.202004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 91.202004] NMI backtrace for cpu 2
[ 91.202004] CPU: 2 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007cb24b00 ti: ffff88007c680000 task.ti: ffff88007c680000
[ 91.202004] RIP: 0010:[<ffffffff81347fe8>] [<ffffffff81347fe8>] check_preemption_disabled+0x8/0xe0
[ 91.202004] RSP: 0018:ffff88007c683d90 EFLAGS: 00000246
[ 91.202004] RAX: 0000000080000001 RBX: 000000c7ab3fe108 RCX: 0000000000000001
[ 91.202004] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 91.202004] RBP: ffff88007c683da0 R08: ffff88007c680000 R09: 0000000000000002
[ 91.202004] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c7ab3f6534
[ 91.202004] R13: 00000000000a9fb8 R14: 0000000000000002 R15: ffffffff820d5fe0
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202004] Stack:
[ 91.202004] ffff88007c683da0 ffffffff813480d7 ffff88007c683dd0 ffffffff81339472
[ 91.202004] 0000000000000000 ffff88007c683e20 00000039515b4c4d 000000000000046f
[ 91.202004] ffff88007c683de0 ffffffff81339337 ffff88007c683e00 ffffffff810addf7
[ 91.202004] Call Trace:
[ 91.202004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
[ 91.202004] [<ffffffff81339472>] delay_tsc+0x42/0xc0
[ 91.202004] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 91.202004] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
[ 91.202004] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Code: 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 65 8b 05 a8 2d cc 7e <48> 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff
[ 91.202004] NMI backtrace for cpu 6
[ 91.202004] CPU: 6 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007cb22580 ti: ffff88007c624000 task.ti: ffff88007c624000
[ 91.202004] RIP: 0010:[<ffffffff810addac>] [<ffffffff810addac>] rcu_read_delay+0x5c/0xb0
[ 91.202004] RSP: 0018:ffff88007c627df0 EFLAGS: 00000202
[ 91.202004] RAX: 00000000000a4fd6 RBX: 0000000000000000 RCX: 0000000000001770
[ 91.202004] RDX: 0000000000000e75 RSI: ffff88007fad27d8 RDI: ffff88007c627e20
[ 91.202004] RBP: ffff88007c627e00 R08: ffff88007c624000 R09: ffff88007fad53f0
[ 91.202004] R10: ffff88007c627e30 R11: 000000000000005a R12: ffff88007c627e20
[ 91.202004] R13: 00000039515b8490 R14: 000000000000046f R15: ffffffff820d5fe0
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202004] Stack:
[ 91.202004] 0000000000000000 0000000000000000 ffff88007c627ea8 ffffffff810ad458
[ 91.202004] 0000000000000000 0000000081a0a240 4f1dab463615f1af 0000000000000b21
[ 91.202004] ffff88007cc53d40 ffff88007c50bdf0 00000000fffcd063 ffffffff810ad590
[ 91.202004] Call Trace:
[ 91.202004] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Code: e8 8a b5 28 00 48 83 eb 01 75 f0 4c 89 e7 e8 6c 83 07 00 48 63 15 d9 94 02 01 48 8d 14 92 48 8d 0c 92 31 d2 48 c1 e1 04 48 f7 f1 <48> 85 d2 74 3c 65 8b 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41
[ 91.202004] NMI backtrace for cpu 7
[ 91.202004] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007cb21900 ti: ffff88007c620000 task.ti: ffff88007c620000
[ 91.202004] RIP: 0010:[<ffffffff8133947c>] [<ffffffff8133947c>] delay_tsc+0x4c/0xc0
[ 91.202004] RSP: 0018:ffff88007c623db0 EFLAGS: 00000246
[ 91.202004] RAX: 00000000ab406ce4 RBX: 000000c7ab406c44 RCX: 0000000000000001
[ 91.202004] RDX: 00000000000000c7 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 91.202004] RBP: ffff88007c623dd0 R08: ffff88007c620000 R09: 0000000000000002
[ 91.202004] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c7ab2cda1c
[ 91.202004] R13: 0000000000351ec1 R14: 0000000000000007 R15: ffffffff820d5fe0
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202004] Stack:
[ 91.202004] 0000000000000015 ffff88007c623e20 000000394df2e808 000000000000046f
[ 91.202004] ffff88007c623de0 ffffffff81339337 ffff88007c623e00 ffffffff810add86
[ 91.202004] 0000000000000000 0000000000000000 ffff88007c623ea8 ffffffff810ad458
[ 91.202004] Call Trace:
[ 91.202004] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 91.202004] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 91.202004] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Code: ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f ae e8 0f 31 <48> c1 e2 20 48 89 d3 48 09 c3 48 89 d8 4c 29 e0 49 39 c5 76 24
[ 91.202004] NMI backtrace for cpu 9
[ 91.202004] CPU: 9 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007c66a580 ti: ffff88007c654000 task.ti: ffff88007c654000
[ 91.202004] RIP: 0010:[<ffffffff810a892f>] [<ffffffff810a892f>] __rcu_read_unlock+0x2f/0x50
[ 91.202004] RSP: 0018:ffff88007c657de8 EFLAGS: 00000246
[ 91.202004] RAX: 0000000000000001 RBX: ffff88007c66a580 RCX: 0000000000000001
[ 91.202004] RDX: 0000000080000001 RSI: ffffffff81d29759 RDI: 0000000000000000
[ 91.202004] RBP: ffff88007c657df0 R08: ffff88007c654000 R09: ffff88007fb353f0
[ 91.202004] R10: ffff88007c657e30 R11: 0000000000000078 R12: 0000000000000000
[ 91.202004] R13: 00000039515bac4a R14: 000000000000046f R15: ffffffff820d5fe0
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fb20000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 000055f32cd5f720 CR3: 000000007b0a0000 CR4: 00000000000006e0
[ 91.202004] Stack:
[ 91.202004] 0000000000000000 ffff88007c657e00 ffffffff810accc9 ffff88007c657ea8
[ 91.202004] ffffffff810ad3c2 0000000000000000 0000000081a0a240 142e046850c04feb
[ 91.202004] 0000000000001bad 0000000000000000 ffff88007fb2cf60 00000000fffcd063
[ 91.202004] Call Trace:
[ 91.202004] [<ffffffff810accc9>] rcu_torture_read_unlock+0x9/0x10
[ 91.202004] [<ffffffff810ad3c2>] rcu_torture_reader+0x112/0x2e0
[ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Code: 53 65 48 8b 1c 25 00 ae 00 00 8b 83 50 03 00 00 83 f8 01 74 0c 83 e8 01 89 83 50 03 00 00 5b 5d c3 c7 83 50 03 00 00 00 00 00 80 <8b> 83 54 03 00 00 85 c0 75 0d c7 83 50 03 00 00 00 00 00 00 5b
[ 91.202004] NMI backtrace for cpu 10
[ 91.202004] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007cc98c80 ti: ffff88007cca4000 task.ti: ffff88007cca4000
[ 91.202004] RIP: 0010:[<ffffffff81092067>] [<ffffffff81092067>] queued_spin_lock_slowpath+0x127/0x1a0
[ 91.202004] RSP: 0018:ffff88007fb43d90 EFLAGS: 00000002
[ 91.202004] RAX: 0000000000000000 RBX: ffff88007fb6cc00 RCX: ffff88007fb55e80
[ 91.202004] RDX: 00000000002c0101 RSI: ffffffff81ca0d44 RDI: 00000000002c0000
[ 91.202004] RBP: ffff88007fb43da8 R08: 0000000000000000 R09: 0000000000000583
[ 91.202004] R10: ffff88007cca7f58 R11: 0000000000000583 R12: 0000000000000000
[ 91.202004] R13: ffff88007fb55e80 R14: 00000000cfbb42a0 R15: 0000000000000000
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202004] Stack:
[ 91.202004] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb43dd8
[ 91.202004] ffffffff81093185 ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00
[ 91.202004] 0000000000000000 ffff88007fb43df0 ffffffff818b3fda 000000000000000b
[ 91.202004] Call Trace:
[ 91.202004] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 91.202004] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
[ 91.202004] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
[ 91.202004] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
[ 91.202004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 91.202004] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
[ 91.202004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
[ 91.202004] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
[ 91.202004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 91.202004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 91.202004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 91.202004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 91.202004] <EOI> \x01d [<ffffffff8100f303>] ? default_idle+0x13/0xd0
[ 91.202004] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 91.202004] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 91.202004] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 91.202004] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 91.202004] Code: 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 <8b> 13 66 85 d2 75 f7 be 01 00 00 00 eb 10 89 d0 f0 0f b1 33 39
[ 91.202004] NMI backtrace for cpu 11
[ 91.202004] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
[ 91.202004] RIP: 0010:[<ffffffff810920b1>] [<ffffffff810920b1>] queued_spin_lock_slowpath+0x171/0x1a0
[ 91.202004] RSP: 0000:ffff88007fb63e58 EFLAGS: 00000002
[ 91.202004] RAX: 00000000002c0101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
[ 91.202004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 91.202004] RBP: ffff88007fb63e70 R08: 00000000000006e7 R09: 0000000000000418
[ 91.202004] R10: ffff88007c63ff58 R11: 0000000000000418 R12: 00000000cfbb42a0
[ 91.202004] R13: 0000000000000001 R14: 00000000cfbb42a0 R15: 0000000000000000
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202004] Stack:
[ 91.202004] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb63ea0
[ 91.202004] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
[ 91.202004] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
[ 91.202004] Call Trace:
[ 91.202004] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 91.202004] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 91.202004] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 91.202004] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 91.202004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 91.202004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 91.202004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 91.202004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 91.202004] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 91.202004] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 91.202004] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 91.202004] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 91.202004] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 91.202004] [<ffffffff8104a612>] no_context+0x102/0x330
[ 91.202004] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 91.202004] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 91.202004] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 91.202004] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 91.202004] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 91.202004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 91.202004] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 91.202004] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 91.202004] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 91.202004] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 91.202004] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 91.202004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 91.202004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 91.202004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 91.202004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 91.202004] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 91.202004] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 91.202004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Code: d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 8b 03 <84> c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 f3 90
[ 91.202004] NMI backtrace for cpu 12
[ 91.202004] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007cb27080 ti: ffff88007c674000 task.ti: ffff88007c674000
[ 91.202004] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 91.202004] RSP: 0000:ffff88007c677c90 EFLAGS: 00000046
[ 91.202004] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000c
[ 91.202004] RDX: 000000000000000c RSI: 0000000000000010 RDI: 0000000000000300
[ 91.202004] RBP: ffff88007c677cc8 R08: 0000000000000000 R09: 000000000000dec4
[ 91.202004] R10: ffff88007c677f58 R11: 00000000000006fb R12: ffffffff81f31740
[ 91.202004] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000c
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202004] Stack:
[ 91.202004] 0000000000000086 0000000c7c677ca0 000000000000ff40 0000000000000001
[ 91.202004] ffffffff8103fd20 00000000cfbb42a0 ffff88007c677dd0 ffff88007c677cd8
[ 91.202004] ffffffff8103fd36 ffff88007c677d20 ffffffff81331299 ffffffff81008b50
[ 91.202004] Call Trace:
[ 91.202004] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 91.202004] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 91.202004] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 91.202004] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 91.202004] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 91.202004] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 91.202004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 91.202004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 91.202004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 91.202004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 91.202004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 91.202004] NMI backtrace for cpu 14
[ 91.202004] CPU: 14 PID: 785 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007cb23200 ti: ffff88007cbb8000 task.ti: ffff88007cbb8000
[ 91.202004] RIP: 0010:[<ffffffff81347fef>] [<ffffffff81347fef>] check_preemption_disabled+0xf/0xe0
[ 91.202004] RSP: 0018:ffff88007cbbbd80 EFLAGS: 00000246
[ 91.202004] RAX: 0000000080000001 RBX: 000000c7ab4487ce RCX: 0000000000000001
[ 91.202004] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 91.202004] RBP: ffff88007cbbbd90 R08: ffff88007cbb8000 R09: ffff88007fbd53f0
[ 91.202004] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c7ab40f0d2
[ 91.202004] R13: 00000000000aa2cd R14: 000000000000000e R15: ffffffff820d5fe0
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202004] Stack:
[ 91.202004] 00000000000aa2cd 000000000000000e ffff88007cbbbda0 ffffffff813480d7
[ 91.202004] ffff88007cbbbdd0 ffffffff81339472 0000000000000000 ffff88007cbbbe20
[ 91.202004] 00000039515bbe80 000000000000046f ffff88007cbbbde0 ffffffff81339337
[ 91.202004] Call Trace:
[ 91.202004] [<ffffffff813480d7>] debug_smp_processor_id+0x17/0x20
[ 91.202004] [<ffffffff81339472>] delay_tsc+0x42/0xc0
[ 91.202004] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 91.202004] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
[ 91.202004] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Code: 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 65 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 <41> 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff 7f 74 0b 89 d8 5b 41
[ 91.202004] NMI backtrace for cpu 15
[ 91.202004] CPU: 15 PID: 778 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 91.202004] task: ffff88007c66d780 ti: ffff88007c664000 task.ti: ffff88007c664000
[ 91.202004] RIP: 0010:[<ffffffff813480f3>] [<ffffffff813480f3>] __this_cpu_preempt_check+0x13/0x20
[ 91.202004] RSP: 0018:ffff88007c667e00 EFLAGS: 00000202
[ 91.202004] RAX: 000000000000000f RBX: 0000000000000000 RCX: 00000000000493e0
[ 91.202004] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81cbdff8
[ 91.202004] RBP: ffff88007c667e00 R08: ffff88007c664000 R09: ffff88007fbf53f0
[ 91.202004] R10: ffff88007c667e30 R11: 0000000000000001 R12: 0000000000000000
[ 91.202004] R13: 00000039515cdbe8 R14: 000000000000046f R15: ffffffff820d5fe0
[ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 91.202004] Stack:
[ 91.202004] ffff88007c667ea8 ffffffff810ad385 0000000000000000 0000000081a0a240
[ 91.202004] 8690c2c9a6c7a479 0000000000001532 ffff88007c5e3de0 ffff88007fbecf60
[ 91.202004] 00000000fffcd063 ffffffff810ad590 0000000000000000 ffffffff0000000f
[ 91.202004] Call Trace:
[ 91.202004] [<ffffffff810ad385>] rcu_torture_reader+0xd5/0x2e0
[ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 91.202004] Code: 48 c7 c7 e7 df cb 81 48 89 e5 e8 09 ff ff ff 5d c3 0f 1f 80 00 00 00 00 55 48 89 fe 48 c7 c7 f8 df cb 81 48 89 e5 e8 ed fe ff ff <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 90 55 48 85 d2 48 89 e5 41
[-- Attachment #1.4: config --]
[-- Type: text/plain, Size: 104941 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 4.5.0-rc1 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11"
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_FHANDLE=y
CONFIG_USELIB=y
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_WATCH=y
CONFIG_AUDIT_TREE=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
#
# RCU Subsystem
#
CONFIG_PREEMPT_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TASKS_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_FANOUT=2
CONFIG_RCU_FANOUT_LEAF=2
CONFIG_TREE_RCU_TRACE=y
CONFIG_RCU_BOOST=y
CONFIG_RCU_KTHREAD_PRIO=2
CONFIG_RCU_BOOST_DELAY=500
# CONFIG_RCU_NOCB_CPU is not set
# CONFIG_RCU_EXPEDITE_BOOT is not set
# CONFIG_BUILD_BIN2C is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=18
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_ARCH_SUPPORTS_INT128=y
# CONFIG_NUMA_BALANCING is not set
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_BLK_CGROUP is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
# CONFIG_RT_GROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
CONFIG_CGROUP_FREEZER=y
# CONFIG_CGROUP_HUGETLB is not set
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
# CONFIG_CGROUP_DEVICE is not set
CONFIG_CGROUP_CPUACCT=y
# CONFIG_CGROUP_PERF is not set
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
# CONFIG_USER_NS is not set
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_BPF=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
# CONFIG_BPF_SYSCALL is not set
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
# CONFIG_USERFAULTFD is not set
CONFIG_PCI_QUIRKS=y
CONFIG_MEMBARRIER=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLUB_CPU_PARTIAL=y
# CONFIG_SYSTEM_DATA_VERIFICATION is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_KEXEC_CORE=y
# CONFIG_OPROFILE is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_UPROBES is not set
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_HAVE_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_CC_STACKPROTECTOR_NONE=y
# CONFIG_CC_STACKPROTECTOR_REGULAR is not set
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_HAVE_COPY_THREAD_TLS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
# CONFIG_ATARI_PARTITION is not set
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
# CONFIG_LDM_PARTITION is not set
CONFIG_SGI_PARTITION=y
# CONFIG_ULTRIX_PARTITION is not set
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
CONFIG_BLOCK_COMPAT=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_FREEZER=y
#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_FAST_FEATURE_TESTS=y
CONFIG_X86_MPPARSE=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_VSMP is not set
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_LPSS is not set
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
# CONFIG_IOSF_MBI is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
# CONFIG_HYPERVISOR_GUEST is not set
CONFIG_NO_BOOTMEM=y
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_GART_IOMMU is not set
CONFIG_CALGARY_IOMMU=y
CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS=16
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_X86_MCE_THRESHOLD=y
# CONFIG_X86_MCE_INJECT is not set
CONFIG_X86_THERMAL_VECTOR=y
# CONFIG_VM86 is not set
CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
# CONFIG_I8K is not set
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
CONFIG_MICROCODE_AMD=y
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_X86_DIRECT_GBPAGES=y
CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
# CONFIG_NUMA_EMU is not set
CONFIG_NODES_SHIFT=6
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
# CONFIG_MOVABLE_NODE is not set
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_MEMORY_FAILURE is not set
# CONFIG_TRANSPARENT_HUGEPAGE is not set
# CONFIG_CLEANCACHE is not set
# CONFIG_FRONTSWAP is not set
# CONFIG_CMA is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZBUD is not set
# CONFIG_ZSMALLOC is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT=y
# CONFIG_IDLE_PAGE_TRACKING is not set
# CONFIG_X86_PMEM_LEGACY is not set
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
# CONFIG_X86_INTEL_MPX is not set
CONFIG_EFI=y
# CONFIG_EFI_STUB is not set
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
# CONFIG_KEXEC_FILE is not set
CONFIG_CRASH_DUMP=y
# CONFIG_KEXEC_JUMP is not set
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_HOTPLUG_CPU=y
# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
# CONFIG_LEGACY_VSYSCALL_NATIVE is not set
CONFIG_LEGACY_VSYSCALL_EMULATE=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
CONFIG_HAVE_LIVEPATCH=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
# CONFIG_PM_ADVANCED_DEBUG is not set
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
CONFIG_PM_TRACE=y
CONFIG_PM_TRACE_RTC=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SLEEP=y
# CONFIG_ACPI_PROCFS_POWER is not set
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
CONFIG_ACPI_FAN=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
# CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_BGRT is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
# CONFIG_ACPI_NFIT is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
# CONFIG_ACPI_APEI is not set
# CONFIG_ACPI_EXTLOG is not set
# CONFIG_PMIC_OPREGION is not set
# CONFIG_SFI is not set
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_COMMON=y
# CONFIG_CPU_FREQ_STAT is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
#
# CPU frequency scaling drivers
#
# CONFIG_X86_INTEL_PSTATE is not set
# CONFIG_X86_PCC_CPUFREQ is not set
CONFIG_X86_ACPI_CPUFREQ=y
CONFIG_X86_ACPI_CPUFREQ_CPB=y
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_P4_CLOCKMOD is not set
#
# shared options
#
# CONFIG_X86_SPEEDSTEP_LIB is not set
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
# CONFIG_INTEL_IDLE is not set
#
# Memory power savings
#
# CONFIG_I7300_IDLE is not set
#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
# CONFIG_HOTPLUG_PCI_PCIE is not set
CONFIG_PCIEAER=y
# CONFIG_PCIE_ECRC is not set
# CONFIG_PCIEAER_INJECT is not set
CONFIG_PCIEASPM=y
# CONFIG_PCIEASPM_DEBUG is not set
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCI_BUS_ADDR_T_64BIT=y
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
CONFIG_HT_IRQ=y
CONFIG_PCI_ATS=y
# CONFIG_PCI_IOV is not set
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
CONFIG_PCI_LABEL=y
#
# PCI host controller drivers
#
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
CONFIG_PCCARD=y
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_CARDBUS=y
#
# PC-card bridges
#
CONFIG_YENTA=y
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
# CONFIG_PD6729 is not set
# CONFIG_I82092 is not set
CONFIG_PCCARD_NONSTATIC=y
CONFIG_HOTPLUG_PCI=y
# CONFIG_HOTPLUG_PCI_ACPI is not set
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set
# CONFIG_RAPIDIO is not set
# CONFIG_X86_SYSFB is not set
#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_AOUT is not set
# CONFIG_X86_X32 is not set
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_KEYS_COMPAT=y
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_PMC_ATOM=y
# CONFIG_VMD is not set
CONFIG_NET=y
CONFIG_NET_INGRESS=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_IP_FIB_TRIE_STATS is not set
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
CONFIG_NET_IP_TUNNEL=y
CONFIG_IP_MROUTE=y
# CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_UDP_TUNNEL is not set
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
CONFIG_INET_LRO=y
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
CONFIG_TCP_CONG_CUBIC=y
# CONFIG_TCP_CONG_WESTWOOD is not set
# CONFIG_TCP_CONG_HTCP is not set
# CONFIG_TCP_CONG_HSTCP is not set
# CONFIG_TCP_CONG_HYBLA is not set
# CONFIG_TCP_CONG_VEGAS is not set
# CONFIG_TCP_CONG_SCALABLE is not set
# CONFIG_TCP_CONG_LP is not set
# CONFIG_TCP_CONG_VENO is not set
# CONFIG_TCP_CONG_YEAH is not set
# CONFIG_TCP_CONG_ILLINOIS is not set
# CONFIG_TCP_CONG_DCTCP is not set
# CONFIG_TCP_CONG_CDG is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_IPV6_ILA is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
CONFIG_INET6_XFRM_MODE_TRANSPORT=y
CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=y
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
# CONFIG_IPV6_VTI is not set
CONFIG_IPV6_SIT=y
# CONFIG_IPV6_SIT_6RD is not set
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_GRE is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
CONFIG_NETLABEL=y
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
# CONFIG_NETFILTER_ADVANCED is not set
#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_NETLINK=y
CONFIG_NETFILTER_NETLINK_LOG=y
CONFIG_NF_CONNTRACK=y
CONFIG_NF_LOG_COMMON=m
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_FTP=y
CONFIG_NF_CONNTRACK_IRC=y
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
CONFIG_NF_CONNTRACK_SIP=y
CONFIG_NF_CT_NETLINK=y
# CONFIG_NETFILTER_NETLINK_GLUE_CT is not set
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
# CONFIG_NF_NAT_AMANDA is not set
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_SIP=m
# CONFIG_NF_NAT_TFTP is not set
# CONFIG_NF_NAT_REDIRECT is not set
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=y
#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_NAT=m
# CONFIG_NETFILTER_XT_TARGET_NETMAP is not set
CONFIG_NETFILTER_XT_TARGET_NFLOG=y
# CONFIG_NETFILTER_XT_TARGET_REDIRECT is not set
CONFIG_NETFILTER_XT_TARGET_SECMARK=y
CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
CONFIG_NETFILTER_XT_MATCH_POLICY=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set
#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=y
CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
# CONFIG_NF_DUP_IPV4 is not set
CONFIG_NF_LOG_ARP=m
CONFIG_NF_LOG_IPV4=m
CONFIG_NF_REJECT_IPV4=y
CONFIG_NF_NAT_IPV4=m
CONFIG_NF_NAT_MASQUERADE_IPV4=m
# CONFIG_NF_NAT_PPTP is not set
# CONFIG_NF_NAT_H323 is not set
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_MANGLE=y
# CONFIG_IP_NF_RAW is not set
#
# IPv6: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV6=y
CONFIG_NF_CONNTRACK_IPV6=y
# CONFIG_NF_DUP_IPV6 is not set
CONFIG_NF_REJECT_IPV6=y
CONFIG_NF_LOG_IPV6=m
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_MATCH_IPV6HEADER=y
CONFIG_IP6_NF_FILTER=y
CONFIG_IP6_NF_TARGET_REJECT=y
CONFIG_IP6_NF_MANGLE=y
# CONFIG_IP6_NF_RAW is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y
#
# Queueing/Scheduling
#
# CONFIG_NET_SCH_CBQ is not set
# CONFIG_NET_SCH_HTB is not set
# CONFIG_NET_SCH_HFSC is not set
# CONFIG_NET_SCH_PRIO is not set
# CONFIG_NET_SCH_MULTIQ is not set
# CONFIG_NET_SCH_RED is not set
# CONFIG_NET_SCH_SFB is not set
# CONFIG_NET_SCH_SFQ is not set
# CONFIG_NET_SCH_TEQL is not set
# CONFIG_NET_SCH_TBF is not set
# CONFIG_NET_SCH_GRED is not set
# CONFIG_NET_SCH_DSMARK is not set
# CONFIG_NET_SCH_NETEM is not set
# CONFIG_NET_SCH_DRR is not set
# CONFIG_NET_SCH_MQPRIO is not set
# CONFIG_NET_SCH_CHOKE is not set
# CONFIG_NET_SCH_QFQ is not set
# CONFIG_NET_SCH_CODEL is not set
# CONFIG_NET_SCH_FQ_CODEL is not set
# CONFIG_NET_SCH_FQ is not set
# CONFIG_NET_SCH_HHF is not set
# CONFIG_NET_SCH_PIE is not set
# CONFIG_NET_SCH_INGRESS is not set
# CONFIG_NET_SCH_PLUG is not set
#
# Classification
#
CONFIG_NET_CLS=y
# CONFIG_NET_CLS_BASIC is not set
# CONFIG_NET_CLS_TCINDEX is not set
# CONFIG_NET_CLS_ROUTE4 is not set
# CONFIG_NET_CLS_FW is not set
# CONFIG_NET_CLS_U32 is not set
# CONFIG_NET_CLS_RSVP is not set
# CONFIG_NET_CLS_RSVP6 is not set
# CONFIG_NET_CLS_FLOW is not set
# CONFIG_NET_CLS_CGROUP is not set
# CONFIG_NET_CLS_BPF is not set
# CONFIG_NET_CLS_FLOWER is not set
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
# CONFIG_NET_EMATCH_CMP is not set
# CONFIG_NET_EMATCH_NBYTE is not set
# CONFIG_NET_EMATCH_U32 is not set
# CONFIG_NET_EMATCH_META is not set
# CONFIG_NET_EMATCH_TEXT is not set
CONFIG_NET_CLS_ACT=y
# CONFIG_NET_ACT_POLICE is not set
# CONFIG_NET_ACT_GACT is not set
# CONFIG_NET_ACT_MIRRED is not set
# CONFIG_NET_ACT_IPT is not set
# CONFIG_NET_ACT_NAT is not set
# CONFIG_NET_ACT_PEDIT is not set
# CONFIG_NET_ACT_SIMP is not set
# CONFIG_NET_ACT_SKBEDIT is not set
# CONFIG_NET_ACT_CSUM is not set
# CONFIG_NET_ACT_VLAN is not set
# CONFIG_NET_ACT_BPF is not set
CONFIG_NET_SCH_FIFO=y
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_MMAP is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_SOCK_CGROUP_DATA is not set
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
# CONFIG_BPF_JIT is not set
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NET_TCPPROBE is not set
# CONFIG_NET_DROP_MONITOR is not set
CONFIG_HAMRADIO=y
#
# Packet Radio protocols
#
# CONFIG_AX25 is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_CFG80211=y
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
# CONFIG_CFG80211_WEXT is not set
# CONFIG_LIB80211 is not set
CONFIG_MAC80211=y
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
# CONFIG_MAC80211_RC_MINSTREL_VHT is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_WIMAX is not set
CONFIG_RFKILL=y
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_LWTUNNEL is not set
CONFIG_HAVE_BPF_JIT=y
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
CONFIG_DEBUG_DEVRES=y
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_REGMAP=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_FENCE_TRACE is not set
#
# Bus devices
#
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SKD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set
# CONFIG_BLK_DEV_NVME is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1780 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_BMP085_I2C is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
#
# Texas Instruments shared transport line discipline
#
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
# CONFIG_VMWARE_VMCI is not set
#
# Intel MIC Bus Driver
#
# CONFIG_INTEL_MIC_BUS is not set
#
# SCIF Bus Driver
#
# CONFIG_SCIF_BUS is not set
#
# Intel MIC Host Driver
#
#
# Intel MIC Card Driver
#
#
# SCIF Driver
#
#
# Intel MIC Coprocessor State Management (COSM) Drivers
#
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_CXL_BASE is not set
# CONFIG_CXL_KERNEL_API is not set
# CONFIG_CXL_EEH is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_MQ_DEFAULT is not set
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y
#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=y
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y
#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=y
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
CONFIG_PATA_AMD=y
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
CONFIG_PATA_OLDPIIX=y
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
CONFIG_PATA_SCH=y
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_PCMCIA is not set
# CONFIG_PATA_RZ1000 is not set
#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_MQ_DEFAULT is not set
# CONFIG_DM_DEBUG is not set
# CONFIG_DM_CRYPT is not set
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
# CONFIG_DM_ERA is not set
CONFIG_DM_MIRROR=y
# CONFIG_DM_LOG_USERSPACE is not set
# CONFIG_DM_RAID is not set
CONFIG_DM_ZERO=y
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
# CONFIG_DM_FLAKEY is not set
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
# CONFIG_DM_LOG_WRITES is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_IFB is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
CONFIG_NETCONSOLE=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set
#
# CAIF transport drivers
#
# CONFIG_VHOST_NET is not set
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
#
# Distributed Switch Architecture drivers
#
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
# CONFIG_PCMCIA_3C574 is not set
# CONFIG_PCMCIA_3C589 is not set
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMD=y
# CONFIG_AMD8111_ETH is not set
# CONFIG_PCNET32 is not set
# CONFIG_PCMCIA_NMCLAN is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
# CONFIG_NET_VENDOR_AURORA is not set
CONFIG_NET_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
CONFIG_TIGON3=y
# CONFIG_BNX2X is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_THUNDER_NIC_PF is not set
# CONFIG_THUNDER_NIC_VF is not set
# CONFIG_THUNDER_NIC_BGX is not set
# CONFIG_LIQUIDIO is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
# CONFIG_CX_ECAT is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
# CONFIG_TULIP is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_PCMCIA_XIRCOM is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_EXAR=y
# CONFIG_S2IO is not set
# CONFIG_VXGE is not set
CONFIG_NET_VENDOR_FUJITSU=y
# CONFIG_PCMCIA_FMVJ18X is not set
CONFIG_NET_VENDOR_HP=y
# CONFIG_HP100 is not set
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=y
CONFIG_E1000=y
# CONFIG_E1000E is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGBEVF is not set
# CONFIG_I40E is not set
# CONFIG_I40EVF is not set
# CONFIG_FM10K is not set
CONFIG_NET_VENDOR_I825XX=y
# CONFIG_JME is not set
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
CONFIG_SKY2=y
# CONFIG_SKY2_DEBUG is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP_NETVF is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_PCMCIA_AXNET is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_PCMCIA_PCNET is not set
CONFIG_NET_VENDOR_NVIDIA=y
CONFIG_FORCEDETH=y
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_PACKET_ENGINE=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_QLGE is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_QUALCOMM=y
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_8139CP is not set
CONFIG_8139TOO=y
CONFIG_8139TOO_PIO=y
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
# CONFIG_R8169 is not set
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
# CONFIG_SFC is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_PCMCIA_SMC91C92 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_ALE is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XIRCOM=y
# CONFIG_PCMCIA_XIRC2PS is not set
CONFIG_FDDI=y
# CONFIG_DEFXX is not set
# CONFIG_SKFP is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_AQUANTIA_PHY is not set
# CONFIG_AT803X_PHY is not set
# CONFIG_AMD_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_OCTEON is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_LAN78XX is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_IPHETH is not set
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K is not set
# CONFIG_ATH5K_PCI is not set
# CONFIG_ATH9K is not set
# CONFIG_ATH9K_HTC is not set
# CONFIG_CARL9170 is not set
# CONFIG_ATH6KL is not set
# CONFIG_AR5523 is not set
# CONFIG_WIL6210 is not set
# CONFIG_ATH10K is not set
# CONFIG_WCN36XX is not set
CONFIG_WLAN_VENDOR_ATMEL=y
# CONFIG_ATMEL is not set
# CONFIG_AT76C50X_USB is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
CONFIG_WLAN_VENDOR_CISCO=y
# CONFIG_AIRO is not set
# CONFIG_AIRO_CS is not set
CONFIG_WLAN_VENDOR_INTEL=y
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_IWL4965 is not set
# CONFIG_IWL3945 is not set
# CONFIG_IWLWIFI is not set
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_HERMES is not set
# CONFIG_P54_COMMON is not set
# CONFIG_PRISM54 is not set
CONFIG_WLAN_VENDOR_MARVELL=y
# CONFIG_LIBERTAS is not set
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_MWIFIEX is not set
# CONFIG_MWL8K is not set
CONFIG_WLAN_VENDOR_MEDIATEK=y
# CONFIG_MT7601U is not set
CONFIG_WLAN_VENDOR_RALINK=y
# CONFIG_RT2X00 is not set
CONFIG_WLAN_VENDOR_REALTEK=y
# CONFIG_RTL8180 is not set
# CONFIG_RTL8187 is not set
CONFIG_RTL_CARDS=y
# CONFIG_RTL8192CE is not set
# CONFIG_RTL8192SE is not set
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8723BE is not set
# CONFIG_RTL8188EE is not set
# CONFIG_RTL8192EE is not set
# CONFIG_RTL8821AE is not set
# CONFIG_RTL8192CU is not set
# CONFIG_RTL8XXXU is not set
CONFIG_WLAN_VENDOR_RSI=y
# CONFIG_RSI_91X is not set
CONFIG_WLAN_VENDOR_ST=y
# CONFIG_CW1200 is not set
CONFIG_WLAN_VENDOR_TI=y
# CONFIG_WL1251 is not set
# CONFIG_WL12XX is not set
# CONFIG_WL18XX is not set
# CONFIG_WLCORE is not set
CONFIG_WLAN_VENDOR_ZYDAS=y
# CONFIG_USB_ZD1201 is not set
# CONFIG_ZD1211RW is not set
# CONFIG_PCMCIA_RAYCS is not set
# CONFIG_PCMCIA_WL3501 is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_ISDN is not set
# CONFIG_NVM is not set
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=y
CONFIG_INPUT_SPARSEKMAP=y
# CONFIG_INPUT_MATRIXKMAP is not set
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_ELAN_I2C is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_MOUSE_SYNAPTICS_USB is not set
CONFIG_INPUT_JOYSTICK=y
# CONFIG_JOYSTICK_ANALOG is not set
# CONFIG_JOYSTICK_A3D is not set
# CONFIG_JOYSTICK_ADI is not set
# CONFIG_JOYSTICK_COBRA is not set
# CONFIG_JOYSTICK_GF2K is not set
# CONFIG_JOYSTICK_GRIP is not set
# CONFIG_JOYSTICK_GRIP_MP is not set
# CONFIG_JOYSTICK_GUILLEMOT is not set
# CONFIG_JOYSTICK_INTERACT is not set
# CONFIG_JOYSTICK_SIDEWINDER is not set
# CONFIG_JOYSTICK_TMDC is not set
# CONFIG_JOYSTICK_IFORCE is not set
# CONFIG_JOYSTICK_WARRIOR is not set
# CONFIG_JOYSTICK_MAGELLAN is not set
# CONFIG_JOYSTICK_SPACEORB is not set
# CONFIG_JOYSTICK_SPACEBALL is not set
# CONFIG_JOYSTICK_STINGER is not set
# CONFIG_JOYSTICK_TWIDJOY is not set
# CONFIG_JOYSTICK_ZHENHUA is not set
# CONFIG_JOYSTICK_AS5011 is not set
# CONFIG_JOYSTICK_JOYDUMP is not set
# CONFIG_JOYSTICK_XPAD is not set
CONFIG_INPUT_TABLET=y
# CONFIG_TABLET_USB_ACECAD is not set
# CONFIG_TABLET_USB_AIPTEK is not set
# CONFIG_TABLET_USB_GTCO is not set
# CONFIG_TABLET_USB_HANWANG is not set
# CONFIG_TABLET_USB_KBTAB is not set
# CONFIG_TABLET_SERIAL_WACOM4 is not set
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_PROPERTIES=y
# CONFIG_TOUCHSCREEN_AD7879 is not set
# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
# CONFIG_TOUCHSCREEN_BU21013 is not set
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
# CONFIG_TOUCHSCREEN_DYNAPRO is not set
# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_ILI210X is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
# CONFIG_TOUCHSCREEN_ELAN is not set
# CONFIG_TOUCHSCREEN_ELO is not set
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
# CONFIG_TOUCHSCREEN_MMS114 is not set
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
# CONFIG_TOUCHSCREEN_MK712 is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_PIXCIR is not set
# CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set
# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
# CONFIG_TOUCHSCREEN_TSC2004 is not set
# CONFIG_TOUCHSCREEN_TSC2007 is not set
# CONFIG_TOUCHSCREEN_ST1232 is not set
# CONFIG_TOUCHSCREEN_SX8654 is not set
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_BMA150 is not set
# CONFIG_INPUT_E3X0_BUTTON is not set
# CONFIG_INPUT_PCSPKR is not set
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_MPU3050 is not set
# CONFIG_INPUT_APANEL is not set
# CONFIG_INPUT_ATLAS_BTNS is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_KXTJ9 is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IMS_PCU is not set
# CONFIG_INPUT_CMA3000 is not set
# CONFIG_INPUT_IDEAPAD_SLIDEBAR is not set
# CONFIG_INPUT_DRV2665_HAPTICS is not set
# CONFIG_INPUT_DRV2667_HAPTICS is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_ROCKETPORT is not set
# CONFIG_CYCLADES is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_SYNCLINK is not set
# CONFIG_SYNCLINKMP is not set
# CONFIG_SYNCLINK_GT is not set
# CONFIG_NOZOMI is not set
# CONFIG_ISI is not set
# CONFIG_N_HDLC is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
CONFIG_DEVMEM=y
CONFIG_DEVKMEM=y
#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
# CONFIG_SERIAL_8250_CS is not set
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
# CONFIG_SERIAL_8250_FSL is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_8250_FINTEK is not set
# CONFIG_SERIAL_8250_MID is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_HW_RANDOM_INTEL is not set
# CONFIG_HW_RANDOM_AMD is not set
CONFIG_HW_RANDOM_VIA=y
CONFIG_NVRAM=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
# CONFIG_CARDMAN_4000 is not set
# CONFIG_CARDMAN_4040 is not set
# CONFIG_IPWIRELESS is not set
# CONFIG_MWAVE is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
# CONFIG_HPET_MMAP is not set
# CONFIG_HANGCHECK_TIMER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set
#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_I801=y
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_ISMT is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
#
# PPS support
#
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set
#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_GPIO is not set
#
# PPS generators support
#
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_AVS is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_FAM15H_POWER is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_DELL_SMM is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_I5500 is not set
# CONFIG_SENSORS_CORETEMP is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
# CONFIG_SENSORS_ADS1015 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set
CONFIG_THERMAL=y
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_GOV_POWER_ALLOCATOR is not set
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_INTEL_POWERCLAMP is not set
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set
# CONFIG_INT340X_THERMAL is not set
# CONFIG_INTEL_PCH_THERMAL is not set
CONFIG_WATCHDOG=y
# CONFIG_WATCHDOG_CORE is not set
# CONFIG_WATCHDOG_NOWAYOUT is not set
# CONFIG_WATCHDOG_SYSFS is not set
#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SBC_FITPC2_WATCHDOG is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
# CONFIG_I6300ESB_WDT is not set
# CONFIG_IE6XX_WDT is not set
# CONFIG_ITCO_WDT is not set
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
# CONFIG_HP_WATCHDOG is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_VIA_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
# CONFIG_MACHZ_WDT is not set
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_BCM7038_WDT is not set
#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set
#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_AXP20X is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_INTEL_LPSS_ACPI is not set
# CONFIG_MFD_INTEL_LPSS_PCI is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RTSX_USB is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_RN5T618 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SMSC is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
CONFIG_INTEL_GTT=y
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=y
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_KMS_FB_HELPER=y
CONFIG_DRM_FBDEV_EMULATION=y
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_ADV7511 is not set
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
# CONFIG_DRM_NOUVEAU is not set
CONFIG_DRM_I915=y
# CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT is not set
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_BOCHS is not set
CONFIG_DRM_PANEL=y
#
# Display Panels
#
CONFIG_DRM_BRIDGE=y
#
# Display Interface Bridges
#
#
# Frame buffer Devices
#
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_UVESA is not set
# CONFIG_FB_VESA is not set
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SM712 is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_PM8941_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_VGASTATE is not set
CONFIG_HDMI=y
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_HWDEP=y
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQ_DUMMY=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_PCM_TIMER=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HRTIMER=y
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_DMA_SGBUF=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_DRIVERS=y
# CONFIG_SND_PCSP is not set
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ASIHPI is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SE6X is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
#
# HD-Audio
#
CONFIG_SND_HDA=y
CONFIG_SND_HDA_INTEL=y
CONFIG_SND_HDA_HWDEP=y
# CONFIG_SND_HDA_RECONFIG is not set
# CONFIG_SND_HDA_INPUT_BEEP is not set
# CONFIG_SND_HDA_PATCH_LOADER is not set
# CONFIG_SND_HDA_CODEC_REALTEK is not set
# CONFIG_SND_HDA_CODEC_ANALOG is not set
# CONFIG_SND_HDA_CODEC_SIGMATEL is not set
# CONFIG_SND_HDA_CODEC_VIA is not set
# CONFIG_SND_HDA_CODEC_HDMI is not set
# CONFIG_SND_HDA_CODEC_CIRRUS is not set
# CONFIG_SND_HDA_CODEC_CONEXANT is not set
# CONFIG_SND_HDA_CODEC_CA0110 is not set
# CONFIG_SND_HDA_CODEC_CA0132 is not set
# CONFIG_SND_HDA_CODEC_CMEDIA is not set
# CONFIG_SND_HDA_CODEC_SI3054 is not set
# CONFIG_SND_HDA_GENERIC is not set
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0
CONFIG_SND_HDA_CORE=y
CONFIG_SND_HDA_I915=y
CONFIG_SND_HDA_PREALLOC_SIZE=64
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_UA101 is not set
# CONFIG_SND_USB_USX2Y is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_USB_US122L is not set
# CONFIG_SND_USB_6FIRE is not set
# CONFIG_SND_USB_HIFACE is not set
# CONFIG_SND_BCD2000 is not set
# CONFIG_SND_USB_POD is not set
# CONFIG_SND_USB_PODHD is not set
# CONFIG_SND_USB_TONEPORT is not set
# CONFIG_SND_USB_VARIAX is not set
CONFIG_SND_PCMCIA=y
# CONFIG_SND_VXPOCKET is not set
# CONFIG_SND_PDAUDIOCF is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y
#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
# CONFIG_HID_BETOP_FF is not set
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_PRODIKEYS is not set
CONFIG_HID_CYPRESS=y
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_ELO is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_GT683R is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
CONFIG_HID_GYRATION=y
# CONFIG_HID_ICADE is not set
# CONFIG_HID_TWINHAN is not set
CONFIG_HID_KENSINGTON=y
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO is not set
CONFIG_HID_LOGITECH=y
# CONFIG_HID_LOGITECH_DJ is not set
# CONFIG_HID_LOGITECH_HIDPP is not set
CONFIG_LOGITECH_FF=y
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
CONFIG_LOGIWHEELS_FF=y
# CONFIG_HID_MAGICMOUSE is not set
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
# CONFIG_HID_MULTITOUCH is not set
CONFIG_HID_NTRIG=y
# CONFIG_HID_ORTEK is not set
CONFIG_HID_PANTHERLORD=y
CONFIG_PANTHERLORD_FF=y
# CONFIG_HID_PENMOUNT is not set
CONFIG_HID_PETALYNX=y
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
# CONFIG_SONY_FF is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
CONFIG_HID_SUNPLUS=y
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
CONFIG_HID_TOPSEED=y
# CONFIG_HID_THINGM is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
#
# USB HID support
#
CONFIG_USB_HID=y
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
#
# I2C HID support
#
# CONFIG_I2C_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_ULPI_BUS is not set
CONFIG_USB_MON=y
# CONFIG_USB_WUSB_CBAF is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set
#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
CONFIG_USB_PRINTER=y
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set
#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set
#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set
#
# USB Physical Layer drivers
#
# CONFIG_USB_PHY is not set
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_GADGET is not set
# CONFIG_USB_LED_TRIG is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
#
# LED drivers
#
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP5521 is not set
# CONFIG_LEDS_LP5523 is not set
# CONFIG_LEDS_LP5562 is not set
# CONFIG_LEDS_LP8501 is not set
# CONFIG_LEDS_LP8860 is not set
# CONFIG_LEDS_CLEVO_MAIL is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_BLINKM is not set
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_DECODE_MCE=y
# CONFIG_EDAC_MM_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12057 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
# CONFIG_RTC_DRV_RV8803 is not set
#
# SPI RTC drivers
#
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
#
# on-CPU RTC drivers
#
#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
CONFIG_DMA_ACPI=y
# CONFIG_INTEL_IDMA64 is not set
# CONFIG_INTEL_IOATDMA is not set
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set
#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACERHDF is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_DELL_SMO8800 is not set
# CONFIG_DELL_RBTN is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_AMILO_RFKILL is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_HP_WIRELESS is not set
# CONFIG_MSI_LAPTOP is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_COMPAL_LAPTOP is not set
# CONFIG_SONY_LAPTOP is not set
# CONFIG_IDEAPAD_LAPTOP is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_INTEL_MENLOW is not set
CONFIG_EEEPC_LAPTOP=y
# CONFIG_ASUS_WIRELESS is not set
# CONFIG_ACPI_WMI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_INTEL_HID_EVENT is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_IBM_RTL is not set
# CONFIG_SAMSUNG_LAPTOP is not set
# CONFIG_INTEL_OAKTRAIL is not set
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_PVPANIC is not set
# CONFIG_INTEL_PMC_IPC is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
# CONFIG_INTEL_PUNIT_IPC is not set
# CONFIG_CHROME_PLATFORMS is not set
#
# Hardware Spinlock drivers
#
#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# CONFIG_ATMEL_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
#
# Generic IOMMU Pagetable Support
#
CONFIG_IOMMU_IOVA=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_STATS=y
# CONFIG_AMD_IOMMU_V2 is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_SVM is not set
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
# CONFIG_IRQ_REMAP is not set
#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
#
# SOC (System On Chip) specific Drivers
#
# CONFIG_SUNXI_SRAM is not set
# CONFIG_SOC_TI is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
CONFIG_ARM_GIC_MAX_NR=1
# CONFIG_TS4800_IRQ is not set
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
# CONFIG_FMC is not set
#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# CONFIG_PHY_HI6220_USB is not set
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
#
# Performance monitor support
#
CONFIG_RAS=y
# CONFIG_AMD_MCE_INJ is not set
# CONFIG_THUNDERBOLT is not set
#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_LIBNVDIMM is not set
# CONFIG_NVMEM is not set
# CONFIG_STM is not set
# CONFIG_STM_DUMMY is not set
# CONFIG_STM_SOURCE_CONSOLE is not set
# CONFIG_INTEL_TH is not set
#
# FPGA Configuration Support
#
# CONFIG_FPGA is not set
#
# Firmware Drivers
#
# CONFIG_EDD is not set
CONFIG_FIRMWARE_MEMMAP=y
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
CONFIG_DMIID=y
# CONFIG_DMI_SYSFS is not set
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT_FIND is not set
# CONFIG_GOOGLE_FIRMWARE is not set
#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_VARS=y
CONFIG_EFI_ESRT=y
CONFIG_EFI_RUNTIME_MAP=y
# CONFIG_EFI_FAKE_MEMMAP is not set
CONFIG_EFI_RUNTIME_WRAPPERS=y
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_ENCRYPTION is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_FS_DAX is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_MANDATORY_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_QUOTACTL_COMPAT=y
CONFIG_AUTOFS4_FS=y
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set
#
# Caches
#
# CONFIG_FSCACHE is not set
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
# CONFIG_CONFIGFS_FS is not set
CONFIG_EFIVAR_FS=m
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
# CONFIG_NFS_SWAP is not set
# CONFIG_NFS_V4_1 is not set
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
# CONFIG_NFSD is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=y
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_HAVE_ARCH_KMEMCHECK=y
# CONFIG_KMEMCHECK is not set
CONFIG_HAVE_ARCH_KASAN=y
# CONFIG_KASAN is not set
# CONFIG_DEBUG_SHIRQ is not set
#
# Debug Lockups and Hangs
#
# CONFIG_LOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SCHED_DEBUG is not set
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_TIMEKEEPING is not set
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_PREEMPT=y
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
# CONFIG_PROVE_RCU is not set
# CONFIG_SPARSE_RCU_POINTER is not set
CONFIG_TORTURE_TEST=y
CONFIG_RCU_TORTURE_TEST=y
CONFIG_RCU_TORTURE_TEST_RUNNABLE=y
CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT_DELAY=3
CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
CONFIG_RCU_TORTURE_TEST_SLOW_INIT_DELAY=3
CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP_DELAY=3
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_TRACE=y
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_FUNCTION_TRACER is not set
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_PREEMPT_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_FTRACE_SYSCALLS is not set
# CONFIG_TRACER_SNAPSHOT is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
# CONFIG_STACK_TRACER is not set
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KPROBE_EVENT=y
# CONFIG_UPROBE_EVENT is not set
CONFIG_PROBE_EVENTS=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_MMIOTRACE is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
# CONFIG_RING_BUFFER_BENCHMARK is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
# CONFIG_TRACE_ENUM_MAP_FILE is not set
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_RHASHTABLE is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_MEMTEST is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
# CONFIG_UBSAN is not set
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
# CONFIG_STRICT_DEVMEM is not set
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
# CONFIG_EARLY_PRINTK_EFI is not set
# CONFIG_X86_PTDUMP_CORE is not set
# CONFIG_X86_PTDUMP is not set
# CONFIG_EFI_PGT_DUMP is not set
CONFIG_DEBUG_RODATA=y
# CONFIG_DEBUG_RODATA_TEST is not set
# CONFIG_DEBUG_WX is not set
# CONFIG_DEBUG_SET_MODULE_RONX is not set
# CONFIG_DEBUG_NX_TEST is not set
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
CONFIG_OPTIMIZE_INLINING=y
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_STATIC_CPU_HAS is not set
CONFIG_X86_DEBUG_FPU=y
# CONFIG_PUNIT_ATOM_DEBUG is not set
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_BIG_KEYS is not set
# CONFIG_ENCRYPTED_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
CONFIG_SECURITY_NETWORK=y
# CONFIG_SECURITY_NETWORK_XFRM is not set
# CONFIG_SECURITY_PATH is not set
# CONFIG_INTEL_TXT is not set
CONFIG_LSM_MMAP_MIN_ADDR=65536
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=0
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_YAMA is not set
CONFIG_INTEGRITY=y
# CONFIG_INTEGRITY_SIGNATURE is not set
CONFIG_INTEGRITY_AUDIT=y
# CONFIG_IMA is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_DEFAULT_SECURITY="selinux"
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_PCOMP2=y
CONFIG_CRYPTO_AKCIPHER2=y
# CONFIG_CRYPTO_RSA is not set
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
# CONFIG_CRYPTO_PCRYPT is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_MCRYPTD is not set
CONFIG_CRYPTO_AUTHENC=y
# CONFIG_CRYPTO_TEST is not set
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_GCM=y
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=y
#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_KEYWRAP is not set
#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32C_INTEL is not set
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRC32_PCLMUL is not set
# CONFIG_CRYPTO_CRCT10DIF is not set
CONFIG_CRYPTO_GHASH=y
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_POLY1305_X86_64 is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SHA1_SSSE3 is not set
# CONFIG_CRYPTO_SHA256_SSSE3 is not set
# CONFIG_CRYPTO_SHA512_SSSE3 is not set
# CONFIG_CRYPTO_SHA1_MB is not set
CONFIG_CRYPTO_SHA256=y
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL is not set
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_X86_64 is not set
# CONFIG_CRYPTO_AES_NI_INTEL is not set
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=y
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_BLOWFISH_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SALSA20_X86_64 is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_CHACHA20_X86_64 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_TWOFISH_X86_64 is not set
# CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set
# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set
#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
# CONFIG_CRYPTO_DRBG_HASH is not set
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_PADLOCK is not set
# CONFIG_CRYPTO_DEV_CCP is not set
# CONFIG_CRYPTO_DEV_QAT_DH895xCC is not set
# CONFIG_CRYPTO_DEV_QAT_C3XXX is not set
# CONFIG_CRYPTO_DEV_QAT_C62X is not set
# CONFIG_CRYPTO_DEV_QAT_DH895xCCVF is not set
# CONFIG_CRYPTO_DEV_QAT_C3XXXVF is not set
# CONFIG_CRYPTO_DEV_QAT_C62XVF is not set
# CONFIG_ASYMMETRIC_KEY_TYPE is not set
#
# Certificates for signature checking
#
# CONFIG_SYSTEM_TRUSTED_KEYRING is not set
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
# CONFIG_KVM is not set
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_INTERVAL_TREE=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
# CONFIG_IRQ_POLL is not set
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# CONFIG_SG_SPLIT is not set
CONFIG_ARCH_HAS_SG_CHAIN=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_ARCH_HAS_MMIO_FLUSH=y
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 473 bytes --]
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-30 12:58 ` Boqun Feng
@ 2016-03-30 13:30 ` Paul E. McKenney
2016-03-30 14:15 ` Boqun Feng
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-30 13:30 UTC (permalink / raw)
To: Boqun Feng
Cc: Peter Zijlstra, Jacob Pan, Josh Triplett, Ross Green,
Mathieu Desnoyers, John Stultz, Thomas Gleixner, lkml,
Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton, rostedt,
David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar,
Chatre, Reinette
On Wed, Mar 30, 2016 at 08:58:38PM +0800, Boqun Feng wrote:
> Hi Paul,
>
> On Mon, Mar 28, 2016 at 06:29:32AM -0700, Paul E. McKenney wrote:
> > On Mon, Mar 28, 2016 at 08:28:51AM +0200, Peter Zijlstra wrote:
> > > On Sun, Mar 27, 2016 at 02:09:14PM -0700, Paul E. McKenney wrote:
> > >
> > > > > Does that system have MONITOR/MWAIT errata?
> > > >
> > > > On the off-chance that this question was also directed at me,
> > >
> > > Hehe, it wasn't, however, since we're here..
> > >
> > > > here is
> > > > what I am running on. I am running in a qemu/KVM virtual machine, in
> > > > case that matters.
> > >
> > > Have you actually tried on real proper hardware? Does it still reproduce
> > > there?
> >
> > Ross has, but I have not, given that I have a shared system on the one
> > hand and a single-socket (four core, eight hardware thread) laptop on
> > the other that has even longer reproduction times. The repeat-by is
> > as follows:
> >
> > o Build a kernel with the following Kconfigs:
> >
> > CONFIG_SMP=y
> > CONFIG_NR_CPUS=16
> > CONFIG_PREEMPT_NONE=n
> > CONFIG_PREEMPT_VOLUNTARY=n
> > CONFIG_PREEMPT=y
> > # This should result in CONFIG_PREEMPT_RCU=y
> > CONFIG_HZ_PERIODIC=y
> > CONFIG_NO_HZ_IDLE=n
> > CONFIG_NO_HZ_FULL=n
> > CONFIG_RCU_TRACE=y
> > CONFIG_HOTPLUG_CPU=y
> > CONFIG_RCU_FANOUT=2
> > CONFIG_RCU_FANOUT_LEAF=2
> > CONFIG_RCU_NOCB_CPU=n
> > CONFIG_DEBUG_LOCK_ALLOC=n
> > CONFIG_RCU_BOOST=y
> > CONFIG_RCU_KTHREAD_PRIO=2
> > CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
> > CONFIG_RCU_EXPERT=y
> > CONFIG_RCU_TORTURE_TEST=y
> > CONFIG_PRINTK_TIME=y
> > CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> > CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> > CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
> >
> > If desired, you can instead build with CONFIG_RCU_TORTURE_TEST=m
> > and modprobe/insmod the module manually.
> >
> > o Find a two-socket x86 system or larger, with at least 16 CPUs.
> >
> > o Boot the kernel with the following kernel boot parameters:
> >
> > rcutorture.onoff_interval=1 rcutorture.onoff_holdoff=30
> >
> > The onoff_holdoff is only needed for CONFIG_RCU_TORTURE_TEST=y.
> > When manually setting up the module, you get the holdoff for
> > free, courtesy of human timescales.
> >
>
> I ran several tests similar to this setup in a guest, the guest was
> running in a 12-core Xeon X5690 host with kernel 4.4.5. The guest was
> given 16 VCPUs and 2G memory.
>
> Rather than RCU stall warnings, I was able to see a bug like this nearly
> *everytime*:
>
> [ 308.291635] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 308.292063] IP: [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
New one on me!
> [ 308.292063] PGD 0
> [ 308.292063] Oops: 0002 [#1] PREEMPT SMP
> [ 308.292063] Modules linked in:
> [ 308.292063] CPU: 11 PID: 798 Comm: torture_onoff Not tainted 4.5.0-rc1+ #14
> [ 308.292063] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 308.292063] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
> [ 308.292063] RIP: 0010:[<ffffffff810b9452>] [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> [ 308.292063] RSP: 0018:ffff88007c6f7c98 EFLAGS: 00010086
> [ 308.292063] RAX: dead000000000200 RBX: ffff88007fb6cc00 RCX: ffff88007fa2cc00
> [ 308.292063] RDX: 0000000000000000 RSI: ffff88007fa2d6d0 RDI: ffff88007fb6cc00
> [ 308.292063] RBP: ffff88007c6f7cc0 R08: 0000000000000000 R09: ffffffff81e4d360
> [ 308.292063] R10: ffffea0001f2daa0 R11: 0000000000000000 R12: ffff88007fa2d6d0
> [ 308.292063] R13: ffff88007fb6cc00 R14: 000000000000000b R15: ffff88007fa2c420
> [ 308.292063] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 308.292063] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 308.292063] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 308.292063] Stack:
> [ 308.292063] ffff88007fb6cc00 ffff88007fa2d6d8 ffff88007fa2dad0 ffff88007fa2d8d0
> [ 308.292063] ffff88007fa2d4d8 ffff88007c6f7d08 ffffffff810b95c4 ffff88007fa2cc00
> [ 308.292063] ffff88007fa2d648 00000000fffffff0 ffffffff81e4e0c0 0000000000000007
> [ 308.292063] Call Trace:
> [ 308.292063] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 308.292063] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 308.292063] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 308.292063] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 308.292063] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 308.292063] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 308.292063] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 308.292063] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 308.292063] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 308.292063] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 308.292063] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 308.292063] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 308.292063] Code: 56 41 55 41 54 53 48 8b 06 44 8b 77 40 48 85 c0 74 53 49 89 fd 49 89 f4 4d 8b 3c 24 66 66 66 66 90 49 8b 07 49 8b 57 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 00 00 00 00 ad de 4c 89
> [ 308.292063] RIP [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> [ 308.292063] RSP <ffff88007c6f7c98>
> [ 308.292063] CR2: 0000000000000000
> [ 308.292063] ---[ end trace 29cb5d70ad875872 ]---
>
>
> I'm not sure whether this is relevant, maybe this was caused by my
> setup? But I attach two kernel logs and my config in case this could
> help us solve the problem.
>
> Another interesting I observed was that the time stamps of printk went
> back in a while in some run, please note the log named "dmesg.1" in the
> attachments.
That can cause all sorts of problems, including RCU CPU stall warnings.
So I see the following in dmesg.1, courtesy of:
sed -e 's/].*$//' < /tmp/dmesg.1 | awk '{ if (oldtime != "" && oldtime > $2) print; oldtime = $2 }'
1.128644 -> 1.128642: Only two microseconds backwards, so not enough
to cause a stall warning (need about 21 seconds for that).
1.143582 -> 1.143575: Seven microseconds backwards.
316.386056 -> 421.191446: 104.8 seconds backwards, plenty to cause
all sorts of problems, including stall warnings.
311.122004 -> 316.338053: 5.2 seconds backwards, can cause all sorts
of problems, but not likely stall warnings.
> A quick analysis of this bug is the null dereference happened at:
>
> migrate_timer_list()
> detach_timer();
> __list_del();
> WRITE_ONCE(*pprev, next); <- pprev is NULL
>
> This seems highly unlikely, but as I said, I hit this almost every time
> after a few minutes of starting rcutoture.
Looks like a malformed list, which does look quite ugly. No idea
whether or not this could be related to backwards-going time, but
fixing the backwards-going time is a good first step.
> Any idea about whether this could be related to the RCU stall problem,
> or this is another bug, or this actually happend by design for some
> reasons?
One of your backwards-time incidents could cause both the RCU CPU stall
warnings and also the soft lockup I see there.
If this is an older system, it might have an unreliable TSC. If the
kernel is nevertheless using TSC, this sort of thing could happen.
The usual advice is to boot using HPET, but perhaps others on the
list have more specific advice.
Thanx, Paul
> Regards,
> Boqun
>
> > In the absence of instrumentation, I get failures usually within a
> > couple of hours, though sometimes much longer. With instrumentation,
> > the sky appears to be the limit. :-/
> >
> > Ross is running on bare metal with no CPU hotplug, so perhaps his setup
> > is of more immediate interest. He is seeing the same symptoms that I am,
> > namely a task being repeatedly awakened without actually coming out of
> > TASK_INTERRUPTIBLE state, let alone running. As you pointed out earlier,
> > he cannot be seeing the same bug that my crude patch suppresses, but
> > given that I still see a few failures with that crude patch, it is quite
> > possible that there is still a common bug.
> >
> > Thanx, Paul
> >
> [ 0.000000] Linux version 4.5.0-rc1+ (root@insomnia) (gcc version 5.3.0 (GCC) ) #14 SMP PREEMPT Wed Mar 30 20:01:04 CST 2016
> [ 0.000000] Command line: noapic selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
> [ 0.000000] x86/fpu: Legacy x87 FPU detected.
> [ 0.000000] x86/fpu: Using 'lazy' FPU context switches.
> [ 0.000000] e820: BIOS-provided physical RAM map:
> [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
> [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdefff] usable
> [ 0.000000] BIOS-e820: [mem 0x000000007ffdf000-0x000000007fffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
> [ 0.000000] NX (Execute Disable) protection: active
> [ 0.000000] SMBIOS 2.8 present.
> [ 0.000000] e820: last_pfn = 0x7ffdf max_arch_pfn = 0x400000000
> [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
> [ 0.000000] found SMP MP-table at [mem 0x000f6a50-0x000f6a5f] mapped at [ffff8800000f6a50]
> [ 0.000000] Scanning 1 areas for low memory corruption
> [ 0.000000] Using GB pages for direct mapping
> [ 0.000000] RAMDISK: [mem 0x7fcd4000-0x7ffcffff]
> [ 0.000000] ACPI: Early table checksum verification disabled
> [ 0.000000] ACPI: RSDP 0x00000000000F6A00 000014 (v00 BOCHS )
> [ 0.000000] ACPI: RSDT 0x000000007FFE1580 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
> [ 0.000000] ACPI: FACP 0x000000007FFE061A 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
> [ 0.000000] ACPI: DSDT 0x000000007FFDFA80 000B9A (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001)
> [ 0.000000] ACPI: FACS 0x000000007FFDFA40 000040
> [ 0.000000] ACPI: SSDT 0x000000007FFE068E 000DCA (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001)
> [ 0.000000] ACPI: APIC 0x000000007FFE1458 0000F0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
> [ 0.000000] ACPI: HPET 0x000000007FFE1548 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
> [ 0.000000] No NUMA configuration found
> [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007ffdefff]
> [ 0.000000] NODE_DATA(0) allocated [mem 0x7ffdb000-0x7ffdefff]
> [ 0.000000] Zone ranges:
> [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
> [ 0.000000] DMA32 [mem 0x0000000001000000-0x000000007ffdefff]
> [ 0.000000] Normal empty
> [ 0.000000] Movable zone start for each node
> [ 0.000000] Early memory node ranges
> [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff]
> [ 0.000000] node 0: [mem 0x0000000000100000-0x000000007ffdefff]
> [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000007ffdefff]
> [ 0.000000] ACPI: PM-Timer IO Port: 0x608
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
> [ 0.000000] ACPI: Skipping IOAPIC probe due to 'noapic' option.
> [ 0.000000] Using ACPI for processor (LAPIC) configuration information
> [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
> [ 0.000000] Intel MultiProcessor Specification v1.4
> [ 0.000000] MPTABLE: OEM ID: BOCHSCPU
> [ 0.000000] MPTABLE: Product ID: 0.1
> [ 0.000000] MPTABLE: APIC at: 0xFEE00000
> [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
> [ 0.000000] Processors: 16
> [ 0.000000] smpboot: Allowing 16 CPUs, 0 hotplug CPUs
> [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
> [ 0.000000] e820: [mem 0x80000000-0xfeffbfff] available for PCI devices
> [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
> [ 0.000000] setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:16 nr_node_ids:1
> [ 0.000000] PERCPU: Embedded 32 pages/cpu @ffff88007fa00000 s92008 r8192 d30872 u131072
> [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 515944
> [ 0.000000] Policy zone: DMA32
> [ 0.000000] Kernel command line: noapic selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
> [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
> [ 0.000000] Memory: 2040780K/2096628K available (8931K kernel code, 1258K rwdata, 3700K rodata, 1092K init, 984K bss, 55848K reserved, 0K cma-reserved)
> [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=16, Nodes=1
> [ 0.000000] Preemptible hierarchical RCU implementation.
> [ 0.000000] RCU debugfs-based tracing is enabled.
> [ 0.000000] CONFIG_RCU_FANOUT set to non-default value of 2
> [ 0.000000] RCU torture testing starts during boot.
> [ 0.000000] Four(or more)-level hierarchy is enabled.
> [ 0.000000] Build-time adjustment of leaf fanout to 2.
> [ 0.000000] RCU kthread priority: 2.
> [ 0.000000] NR_IRQS:4352 nr_irqs:552 16
> [ 0.000000] Console: colour *CGA 80x25
> [ 0.000000] console [ttyS0] enabled
> [ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
> [ 0.000000] tsc: Fast TSC calibration using PIT
> [ 0.000000] tsc: Detected 3466.555 MHz processor
> [ 0.002013] Calibrating delay loop (skipped), value calculated using timer frequency.. 6933.11 BogoMIPS (lpj=3466555)
> [ 0.003221] pid_max: default: 32768 minimum: 301
> [ 0.004006] ACPI: Core revision 20160108
> [ 0.005400] ACPI: 2 ACPI AML tables successfully acquired and loaded
> [ 0.005895]
> [ 0.006006] ACPI: setting ELCR to 0200 (from 0c00)
> [ 0.006390] Security Framework initialized
> [ 0.006710] SELinux: Disabled at boot.
> [ 0.007098] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
> [ 0.008111] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
> [ 0.008795] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
> [ 0.009005] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
> [ 0.010313] mce: CPU supports 10 MCE banks
> [ 0.010663] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
> [ 0.011003] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
> [ 0.012726] Freeing SMP alternatives memory: 32K (ffffffff8204d000 - ffffffff82055000)
> [ 0.013357] Switched APIC routing to physical flat.
> [ 0.014080] smpboot: CPU0: Intel(R) Xeon(R) CPU X5690 @ 3.47GHz (family: 0x6, model: 0x2c, stepping: 0x2)
> [ 0.014920] Performance Events: 16-deep LBR, Westmere events, Intel PMU driver.
> [ 0.015429] perf_event_intel: CPUID marked event: 'bus cycles' unavailable
> [ 0.015949] ... version: 2
> [ 0.016003] ... bit width: 48
> [ 0.016329] ... generic registers: 4
> [ 0.016636] ... value mask: 0000ffffffffffff
> [ 0.017003] ... max period: 000000007fffffff
> [ 0.017404] ... fixed-purpose events: 3
> [ 0.017710] ... event mask: 000000070000000f
> [ 0.027039] x86: Booting SMP configuration:
> [ 0.027433] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15
> [ 0.985023] x86: Booted up 1 node, 16 CPUs
> [ 0.985362] smpboot: Total of 16 processors activated (111447.03 BogoMIPS)
> [ 0.987547] devtmpfs: initialized
> [ 0.988368] kworker/u32:0 (98) used greatest stack depth: 13928 bytes left
> [ 0.988536] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
> [ 0.988993] RTC time: 12:03:37, date: 03/30/16
> [ 0.989101] NET: Registered protocol family 16
> [ 0.989570] kworker/u32:1 (100) used greatest stack depth: 13736 bytes left
> [ 0.996022] cpuidle: using governor menu
> [ 0.996672] ACPI: bus type PCI registered
> [ 0.997125] PCI: Using configuration type 1 for base access
> [ 1.010381] HugeTLB registered 2 MB page size, pre-allocated 0 pages
> [ 1.011926] ACPI: Added _OSI(Module Device)
> [ 1.012004] ACPI: Added _OSI(Processor Device)
> [ 1.012349] ACPI: Added _OSI(3.0 _SCP Extensions)
> [ 1.012717] ACPI: Added _OSI(Processor Aggregator Device)
> [ 1.014251] ACPI: Interpreter enabled
> [ 1.014628] ACPI: (supports S0 S3 S4 S5)
> [ 1.014997] ACPI: Using PIC for interrupt routing
> [ 1.015037] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
> [ 1.019866] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
> [ 1.020013] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
> [ 1.020677] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
> [ 1.021011] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
> [ 1.022058] PCI host bridge to bus 0000:00
> [ 1.022466] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
> [ 1.023011] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
> [ 1.023551] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
> [ 1.024004] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff window]
> [ 1.024578] pci_bus 0000:00: root bus resource [bus 00-ff]
> [ 1.028247] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
> [ 1.028778] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
> [ 1.029004] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
> [ 1.029537] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
> [ 1.030369] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI
> [ 1.030936] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB
> [ 1.037175] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
> [ 1.037744] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
> [ 1.038196] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
> [ 1.038745] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
> [ 1.039172] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
> [ 1.040561] ACPI: Enabled 16 GPEs in block 00 to 0F
> [ 1.041109] vgaarb: loaded
> [ 1.041419] SCSI subsystem initialized
> [ 1.041953] ACPI: bus type USB registered
> [ 1.042040] usbcore: registered new interface driver usbfs
> [ 1.042487] usbcore: registered new interface driver hub
> [ 1.043100] usbcore: registered new device driver usb
> [ 1.043539] pps_core: LinuxPPS API ver. 1 registered
> [ 1.043979] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
> [ 1.044019] PTP clock support registered
> [ 1.044684] Advanced Linux Sound Architecture Driver Initialized.
> [ 1.045053] PCI: Using ACPI for IRQ routing
> [ 1.045729] NetLabel: Initializing
> [ 1.046004] NetLabel: domain hash size = 128
> [ 1.046365] NetLabel: protocols = UNLABELED CIPSOv4
> [ 1.046767] NetLabel: unlabeled traffic allowed by default
> [ 1.047180] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
> [ 1.047609] hpet0: 3 comparators, 64-bit 100.000000 MHz counter
> [ 1.052714] clocksource: Switched to clocksource hpet
> [ 1.059250] VFS: Disk quotas dquot_6.6.0
> [ 1.059578] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> [ 1.060306] pnp: PnP ACPI init
> [ 1.060970] pnp: PnP ACPI: found 5 devices
> [ 1.069312] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
> [ 1.070069] NET: Registered protocol family 2
> [ 1.070632] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
> [ 1.071401] TCP bind hash table entries: 16384 (order: 7, 524288 bytes)
> [ 1.072064] TCP: Hash tables configured (established 16384 bind 16384)
> [ 1.072688] UDP hash table entries: 1024 (order: 4, 98304 bytes)
> [ 1.073276] UDP-Lite hash table entries: 1024 (order: 4, 98304 bytes)
> [ 1.073827] NET: Registered protocol family 1
> [ 1.074495] RPC: Registered named UNIX socket transport module.
> [ 1.074955] RPC: Registered udp transport module.
> [ 1.075464] RPC: Registered tcp transport module.
> [ 1.075826] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [ 1.076439] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
> [ 1.076891] pci 0000:00:01.0: PIIX3: Enabling Passive Release
> [ 1.077443] pci 0000:00:01.0: Activating ISA DMA hang workarounds
> [ 1.077963] Unpacking initramfs...
> [ 1.120173] Freeing initrd memory: 3056K (ffff88007fcd4000 - ffff88007ffd0000)
> [ 1.122503] Scanning for low memory corruption every 60 seconds
> [ 1.123167] rcu-torture:--- Start of test: nreaders=15 nfakewriters=4 stat_interval=60 verbose=1 test_no_idle_hz=1 shuffle_interval=3 stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 fqs_stutter=3 test_boost=1/0 test_boost_interval=7 test_boost_duration=4 shutdown_secs=0 stall_cpu=0 stall_cpu_holdoff=10 n_barrier_cbs=0 onoff_interval=1 onoff_holdoff=0
> [ 1.125747] rcu-torture: Creating rcu_torture_writer task
> [ 1.126429] rcu-torture: Creating rcu_torture_fakewriter task
> [ 1.126429] rcu-torture: rcu_torture_writer task started
> [ 1.126430] rcu-torture: Grace periods expedited from boot/sysfs for rcu,
> [ 1.126430] rcu-torture: Testing of dynamic grace-period expediting diabled.
> [ 1.128644] rcu-torture: Creating rcu_torture_fakewriter task
> [ 1.128642] rcu-torture: rcu_torture_fakewriter task started
> [ 1.129727] rcu-torture: Creating rcu_torture_fakewriter task
> [ 1.129733] rcu-torture: rcu_torture_fakewriter task started
> [ 1.130898] rcu-torture: Creating rcu_torture_fakewriter task
> [ 1.130906] rcu-torture: rcu_torture_fakewriter task started
> [ 1.132691] rcu-torture: Creating rcu_torture_reader task
> [ 1.132694] rcu-torture: rcu_torture_fakewriter task started
> [ 1.133744] rcu-torture: Creating rcu_torture_reader task
> [ 1.133750] rcu-torture: rcu_torture_reader task started
> [ 1.135313] rcu-torture: Creating rcu_torture_reader task
> [ 1.135317] rcu-torture: rcu_torture_reader task started
> [ 1.136682] rcu-torture: Creating rcu_torture_reader task
> [ 1.136686] rcu-torture: rcu_torture_reader task started
> [ 1.138108] rcu-torture: Creating rcu_torture_reader task
> [ 1.138809] rcu-torture: Creating rcu_torture_reader task
> [ 1.138818] rcu-torture: rcu_torture_reader task started
> [ 1.140081] rcu-torture: rcu_torture_reader task started
> [ 1.140856] rcu-torture: Creating rcu_torture_reader task
> [ 1.140866] rcu-torture: rcu_torture_reader task started
> [ 1.142268] rcu-torture: Creating rcu_torture_reader task
> [ 1.142271] rcu-torture: rcu_torture_reader task started
> [ 1.143582] rcu-torture: Creating rcu_torture_reader task
> [ 1.143575] rcu-torture: rcu_torture_reader task started
> [ 1.144936] rcu-torture: Creating rcu_torture_reader task
> [ 1.144938] rcu-torture: rcu_torture_reader task started
> [ 1.147747] rcu-torture: Creating rcu_torture_reader task
> [ 1.148083] rcu-torture: rcu_torture_reader task started
> [ 1.150115] rcu-torture: Creating rcu_torture_reader task
> [ 1.150770] rcu-torture: Creating rcu_torture_reader task
> [ 1.150778] rcu-torture: rcu_torture_reader task started
> [ 1.151081] rcu-torture: rcu_torture_reader task started
> [ 1.152751] rcu-torture: Creating rcu_torture_reader task
> [ 1.152757] rcu-torture: rcu_torture_reader task started
> [ 1.154181] rcu-torture: Creating rcu_torture_reader task
> [ 1.154185] rcu-torture: rcu_torture_reader task started
> [ 1.155491] rcu-torture: Creating rcu_torture_stats task
> [ 1.156175] rcu-torture: rcu_torture_reader task started
> [ 1.158111] rcu-torture: Creating torture_shuffle task
> [ 1.158225] rcu-torture: rcu_torture_stats task started
> [ 1.160088] rcu-torture: Creating torture_stutter task
> [ 1.162072] rcu-torture: torture_shuffle task started
> [ 1.162089] rcu-torture: Creating torture_onoff task
> [ 1.162096] rcu-torture: torture_stutter task started
> [ 1.163132] rcu-torture: Creating rcu_torture_cbflood task
> [ 1.163136] rcu-torture: torture_onoff task started
> [ 1.163137] rcu-torture:torture_onoff task: offlining 1
> [ 1.165109] rcu-torture: Creating rcu_torture_cbflood task
> [ 1.165188] rcu-torture: rcu_torture_cbflood task started
> [ 1.166119] rcu-torture: Creating rcu_torture_cbflood task
> [ 1.166175] rcu-torture: rcu_torture_cbflood task started
> [ 1.167091] rcu-torture: Creating rcu_torture_cbflood task
> [ 1.167186] rcu-torture: rcu_torture_cbflood task started
> [ 1.168161] rcu-torture: rcu_torture_cbflood task started
> [ 1.198566] Cannot set affinity for irq 0
> [ 1.201317] rcu-torture:torture_onoff task: offlined 1
> [ 1.202330] futex hash table entries: 4096 (order: 6, 262144 bytes)
> [ 1.203196] audit: initializing netlink subsys (disabled)
> [ 1.203818] audit: type=2000 audit(1459339417.203:1): initialized
> [ 1.214213] NFS: Registering the id_resolver key type
> [ 1.214798] Key type id_resolver registered
> [ 1.216354] Key type id_legacy registered
> [ 1.244465] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
> [ 1.245389] io scheduler noop registered
> [ 1.245828] io scheduler deadline registered
> [ 1.246386] io scheduler cfq registered (default)
> [ 1.246974] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> [ 1.247793] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
> [ 1.248696] ACPI: Power Button [PWRF]
> [ 1.250818] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [ 1.298067] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
> [ 1.301459] Non-volatile memory driver v1.3
> [ 1.301993] Linux agpgart interface v0.103
> [ 1.302664] [drm] Initialized drm 1.1.0 20060810
> [ 1.333318] loop: module loaded
> [ 1.338108] scsi host0: ata_piix
> [ 1.344082] scsi host1: ata_piix
> [ 1.344504] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc040 irq 14
> [ 1.345328] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc048 irq 15
> [ 1.346267] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
> [ 1.346946] e100: Copyright(c) 1999-2006 Intel Corporation
> [ 1.347667] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
> [ 1.348576] e1000: Copyright (c) 1999-2006 Intel Corporation.
> [ 1.401454] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 10
> [ 1.837131] e1000 0000:00:02.0 eth0: (PCI:33MHz:32-bit) 52:54:00:12:34:56
> [ 1.837856] e1000 0000:00:02.0 eth0: Intel(R) PRO/1000 Network Connection
> [ 1.839514] sky2: driver version 1.30
> [ 1.842083] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [ 1.842792] ehci-pci: EHCI PCI platform driver
> [ 1.843372] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [ 1.844095] ohci-pci: OHCI PCI platform driver
> [ 1.844586] uhci_hcd: USB Universal Host Controller Interface driver
> [ 1.848330] usbcore: registered new interface driver usblp
> [ 1.848944] usbcore: registered new interface driver usb-storage
> [ 1.850748] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
> [ 1.853219] serio: i8042 KBD port at 0x60,0x64 irq 1
> [ 1.853811] serio: i8042 AUX port at 0x60,0x64 irq 12
> [ 1.854564] mousedev: PS/2 mouse device common for all mice
> [ 1.855778] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
> [ 1.856946] rtc_cmos 00:00: RTC can wake from S4
> [ 1.857843] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0
> [ 1.860852] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram, hpet irqs
> [ 1.861917] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
> [ 1.863983] hidraw: raw HID events driver (C) Jiri Kosina
> [ 1.864831] usbcore: registered new interface driver usbhid
> [ 1.866528] usbhid: USB HID core driver
> [ 1.868362] Netfilter messages via NETLINK v0.30.
> [ 1.868937] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
> [ 1.869776] ctnetlink v0.93: registering with nfnetlink.
> [ 1.938103] ip_tables: (C) 2000-2006 Netfilter Core Team
> [ 1.954088] Initializing XFRM netlink socket
> [ 1.954745] NET: Registered protocol family 10
> [ 1.959227] ip6_tables: (C) 2000-2006 Netfilter Core Team
> [ 2.045095] sit: IPv6 over IPv4 tunneling driver
> [ 2.045761] NET: Registered protocol family 17
> [ 2.046381] Key type dns_resolver registered
> [ 2.048272] microcode: CPU0 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.054101] microcode: CPU2 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.054727] microcode: CPU3 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.055398] microcode: CPU4 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.057091] microcode: CPU5 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.058077] microcode: CPU6 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.059488] microcode: CPU7 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.060165] microcode: CPU8 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.060792] microcode: CPU9 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.062457] microcode: CPU10 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.063193] microcode: CPU11 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.063807] microcode: CPU12 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.065476] microcode: CPU13 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.066140] microcode: CPU14 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.066776] microcode: CPU15 sig=0x206c2, pf=0x1, revision=0x1
> [ 2.069136] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
> [ 2.073334] registered taskstats version 1
> [ 2.120085] tsc: Refined TSC clocksource calibration: 3466.787 MHz
> [ 2.120116] Magic number: 8:22:78
> [ 2.121287] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x31f8c1a78ae, max_idle_ns: 440795301702 ns
> [ 2.122453] console [netcon0] enabled
> [ 2.122838] netconsole: network logging started
> [ 2.123496] ALSA device list:
> [ 2.123826] No soundcards found.
> [ 2.132882] Freeing unused kernel memory: 1092K (ffffffff81f3c000 - ffffffff8204d000)
> [ 2.133781] Write protecting the kernel read-only data: 14336k
> [ 2.142268] Freeing unused kernel memory: 1296K (ffff8800018bc000 - ffff880001a00000)
> [ 2.147172] Freeing unused kernel memory: 396K (ffff880001d9d000 - ffff880001e00000)
> :: running early hook [udev]
> Warning: /lib/modules/4.5.0-rc1+/modules.devname not found - ignoring
> [ 2.156227] random: systemd-tmpfile urandom read with 3 bits of entropy available
> starting version 228
> :: running hook [udev]
> :: Triggering uevents...
> [ 2.203265] rcu-torture:torture_onoff task: offlining 13
> [ 2.311090] smpboot: CPU 13 is now offline
> [ 2.335175] rcu-torture:torture_onoff task: offlined 13
> [ 2.374076] hrtimer: interrupt took 3052040 ns
> ERROR: device '' not found. Skipping fsck.
> ERROR: Unable to find root device ''.
> You are being dropped to a recovery shell
> Type 'exit' to try and continue booting
> sh: can't access tty; job control turned off
> [rootfs /]# [ 2.532402] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
> [ 3.175686] clocksource: Switched to clocksource tsc
> [ 3.335015] rcu-torture:torture_onoff task: offlining 9
> [ 3.458326] smpboot: CPU 9 is now offline
> [ 3.473041] rcu-torture:torture_onoff task: offlined 9
> [ 4.474012] rcu-torture:torture_onoff task: offlining 3
> [ 4.658671] smpboot: CPU 3 is now offline
> [ 4.707907] rcu-torture:torture_onoff task: offlined 3
> [ 5.708012] rcu-torture:torture_onoff task: onlining 13
> [ 5.718635] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 5.849194] rcu-torture:torture_onoff task: onlined 13
> [ 6.849043] rcu-torture:torture_onoff task: offlining 6
> [ 6.918255] smpboot: CPU 6 is now offline
> [ 6.973968] rcu-torture:torture_onoff task: offlined 6
> [ 7.975013] rcu-torture:torture_onoff task: offlining 13
> [ 8.030256] smpboot: CPU 13 is now offline
> [ 8.084823] rcu-torture:torture_onoff task: offlined 13
> [ 9.085014] rcu-torture:torture_onoff task: offlining 2
> [ 9.141234] smpboot: CPU 2 is now offline
> [ 9.195554] rcu-torture:torture_onoff task: offlined 2
> [ 10.195008] rcu-torture:torture_onoff task: onlining 6
> [ 10.249497] smpboot: Booting Node 0 Processor 6 APIC 0x6
> [ 10.275147] rcu-torture:torture_onoff task: onlined 6
> [ 11.275012] rcu-torture:torture_onoff task: offlining 8
> [ 11.348220] smpboot: CPU 8 is now offline
> [ 11.352839] rcu-torture:torture_onoff task: offlined 8
> [ 12.353015] rcu-torture:torture_onoff task: onlining 8
> [ 12.376796] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 12.523163] rcu-torture:torture_onoff task: onlined 8
> [ 13.523013] rcu-torture:torture_onoff task: offlining 6
> [ 13.571220] smpboot: CPU 6 is now offline
> [ 13.577564] rcu-torture:torture_onoff task: offlined 6
> [ 14.578012] rcu-torture:torture_onoff task: onlining 1
> [ 14.602743] x86: Booting SMP configuration:
> [ 14.603246] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 14.729178] microcode: CPU1 sig=0x206c2, pf=0x1, revision=0x1
> [ 14.729828] rcu-torture:torture_onoff task: onlined 1
> [ 15.730012] rcu-torture:torture_onoff task: onlining 9
> [ 15.764765] smpboot: Booting Node 0 Processor 9 APIC 0x9
> [ 15.918505] rcu-torture:torture_onoff task: onlined 9
> [ 16.919012] rcu-torture:torture_onoff task: offlining 15
> [ 17.032826] smpboot: CPU 15 is now offline
> [ 17.088898] rcu-torture:torture_onoff task: offlined 15
> [ 18.089019] rcu-torture:torture_onoff task: offlining 1
> [ 18.144244] smpboot: CPU 1 is now offline
> [ 18.198796] rcu-torture:torture_onoff task: offlined 1
> [ 19.199020] rcu-torture:torture_onoff task: onlining 1
> [ 19.253718] x86: Booting SMP configuration:
> [ 19.254220] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 19.280164] rcu-torture:torture_onoff task: onlined 1
> [ 20.280009] rcu-torture:torture_onoff task: onlining 13
> [ 20.334516] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 20.360165] rcu-torture:torture_onoff task: onlined 13
> [ 21.360012] rcu-torture:torture_onoff task: offlining 5
> [ 21.398318] smpboot: CPU 5 is now offline
> [ 21.402867] rcu-torture:torture_onoff task: offlined 5
> [ 22.403014] rcu-torture:torture_onoff task: offlining 9
> [ 22.414258] smpboot: CPU 9 is now offline
> [ 22.460826] rcu-torture:torture_onoff task: offlined 9
> [ 23.461009] rcu-torture:torture_onoff task: offlining 10
> [ 23.603210] smpboot: CPU 10 is now offline
> [ 23.627577] rcu-torture:torture_onoff task: offlined 10
> [ 24.627009] rcu-torture:torture_onoff task: onlining 6
> [ 24.675485] smpboot: Booting Node 0 Processor 6 APIC 0x6
> [ 24.789151] rcu-torture:torture_onoff task: onlined 6
> [ 25.789025] rcu-torture:torture_onoff task: offlining 14
> [ 25.858243] smpboot: CPU 14 is now offline
> [ 25.867988] rcu-torture:torture_onoff task: offlined 14
> [ 26.870062] rcu-torture:torture_onoff task: offlining 1
> [ 26.925293] smpboot: CPU 1 is now offline
> [ 26.978849] rcu-torture:torture_onoff task: offlined 1
> [ 28.979064] rcu-torture:torture_onoff task: onlining 10
> [ 29.032704] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 29.059317] rcu-torture:torture_onoff task: onlined 10
> [ 30.059084] rcu-torture:torture_onoff task: onlining 14
> [ 30.112682] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 30.137343] rcu-torture:torture_onoff task: onlined 14
> [ 31.137078] rcu-torture:torture_onoff task: offlining 14
> [ 31.166070] smpboot: CPU 14 is now offline
> [ 31.219937] rcu-torture:torture_onoff task: offlined 14
> [ 32.220012] rcu-torture:torture_onoff task: offlining 8
> [ 32.256561] smpboot: CPU 8 is now offline
> [ 32.261886] rcu-torture:torture_onoff task: offlined 8
> [ 33.262016] rcu-torture:torture_onoff task: offlining 12
> [ 33.380237] smpboot: CPU 12 is now offline
> [ 33.423113] rcu-torture:torture_onoff task: offlined 12
> [ 34.423009] rcu-torture:torture_onoff task: offlining 10
> [ 34.466212] smpboot: CPU 10 is now offline
> [ 34.471595] rcu-torture:torture_onoff task: offlined 10
> [ 35.471008] rcu-torture:torture_onoff task: onlining 3
> [ 35.479539] smpboot: Booting Node 0 Processor 3 APIC 0x3
> [ 35.508119] rcu-torture:torture_onoff task: onlined 3
> [ 36.509009] rcu-torture:torture_onoff task: onlining 5
> [ 36.563589] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 36.588315] rcu-torture:torture_onoff task: onlined 5
> [ 38.589069] rcu-torture:torture_onoff task: offlining 5
> [ 38.644261] smpboot: CPU 5 is now offline
> [ 38.698930] rcu-torture:torture_onoff task: offlined 5
> [ 39.699060] rcu-torture:torture_onoff task: offlining 4
> [ 39.754291] smpboot: CPU 4 is now offline
> [ 39.808637] rcu-torture:torture_onoff task: offlined 4
> [ 40.809021] rcu-torture:torture_onoff task: offlining 11
> [ 40.865225] smpboot: CPU 11 is now offline
> [ 40.919552] rcu-torture:torture_onoff task: offlined 11
> [ 41.939673] rcu-torture:torture_onoff task: onlining 11
> [ 41.948489] smpboot: Booting Node 0 Processor 11 APIC 0xb
> [ 42.031085] rcu-torture:torture_onoff task: onlined 11
> [ 43.031008] rcu-torture:torture_onoff task: onlining 4
> [ 43.039562] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 43.129117] rcu-torture:torture_onoff task: onlined 4
> [ 44.142784] rcu-torture:torture_onoff task: onlining 5
> [ 44.188584] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 44.257115] rcu-torture:torture_onoff task: onlined 5
> [ 45.257008] rcu-torture:torture_onoff task: onlining 14
> [ 45.278452] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 45.445125] rcu-torture:torture_onoff task: onlined 14
> [ 47.445009] rcu-torture:torture_onoff task: onlining 9
> [ 47.499476] smpboot: Booting Node 0 Processor 9 APIC 0x9
> [ 47.533228] rcu-torture:torture_onoff task: onlined 9
> [ 48.533037] rcu-torture:torture_onoff task: onlining 10
> [ 48.587760] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 48.625191] rcu-torture:torture_onoff task: onlined 10
> [ 49.625023] rcu-torture:torture_onoff task: offlining 3
> [ 49.684242] smpboot: CPU 3 is now offline
> [ 49.739836] rcu-torture:torture_onoff task: offlined 3
> [ 50.740027] rcu-torture:torture_onoff task: onlining 3
> [ 50.795725] smpboot: Booting Node 0 Processor 3 APIC 0x3
> [ 50.825193] rcu-torture:torture_onoff task: onlined 3
> [ 51.839424] rcu-torture:torture_onoff task: offlining 10
> [ 51.863245] smpboot: CPU 10 is now offline
> [ 51.907767] rcu-torture:torture_onoff task: offlined 10
> [ 52.908012] rcu-torture:torture_onoff task: onlining 8
> [ 52.954756] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 53.045171] rcu-torture:torture_onoff task: onlined 8
> [ 54.045023] rcu-torture:torture_onoff task: offlining 13
> [ 54.097238] smpboot: CPU 13 is now offline
> [ 54.131066] rcu-torture:torture_onoff task: offlined 13
> [ 55.131011] rcu-torture:torture_onoff task: offlining 9
> [ 55.176245] smpboot: CPU 9 is now offline
> [ 55.181098] rcu-torture:torture_onoff task: offlined 9
> [ 56.181027] rcu-torture:torture_onoff task: onlining 10
> [ 56.236916] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 56.283185] rcu-torture:torture_onoff task: onlined 10
> [ 57.283030] rcu-torture:torture_onoff task: onlining 2
> [ 57.352121] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 57.414115] rcu-torture:torture_onoff task: onlined 2
> [ 58.415028] rcu-torture:torture_onoff task: onlining 1
> [ 58.472096] x86: Booting SMP configuration:
> [ 58.472545] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 58.508573] rcu-torture:torture_onoff task: onlined 1
> [ 59.510021] rcu-torture:torture_onoff task: offlining 4
> [ 59.588298] smpboot: CPU 4 is now offline
> [ 59.643851] rcu-torture:torture_onoff task: offlined 4
> [ 60.645012] rcu-torture:torture_onoff task: offlining 14
> [ 60.728261] smpboot: CPU 14 is now offline
> [ 60.783787] rcu-torture:torture_onoff task: offlined 14
> [ 61.158025] rcu-torture: rtc: ffffffff820d7030 ver: 493 tfle: 0 rta: 493 rtaf: 0 rtf: 484 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 211179 onoff: 23/23:29/29 37,189:38,232 2550:2997 (HZ=1000) barrier: 0/0:0 cbflood: 118
> [ 61.160296] rcu-torture: Reader Pipe: 1606911908 2853 0 0 0 0 0 0 0 0 0
> [ 61.161231] rcu-torture: Reader Batch: 1564038099 42876662 0 0 0 0 0 0 0 0 0
> [ 61.162222] rcu-torture: Free-Block Circulation: 492 492 491 490 489 488 487 486 485 484 0
> [ 61.784011] rcu-torture:torture_onoff task: onlining 13
> [ 61.817712] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 62.001153] rcu-torture:torture_onoff task: onlined 13
> [ 63.001013] rcu-torture:torture_onoff task: offlining 1
> [ 63.103245] smpboot: CPU 1 is now offline
> [ 63.109824] rcu-torture:torture_onoff task: offlined 1
> [ 64.152203] rcu-torture:torture_onoff task: offlining 10
> [ 64.185213] smpboot: CPU 10 is now offline
> [ 64.189763] rcu-torture:torture_onoff task: offlined 10
> [ 65.190026] rcu-torture:torture_onoff task: onlining 9
> [ 65.216015] smpboot: Booting Node 0 Processor 9 APIC 0x9
> [ 65.434160] rcu-torture:torture_onoff task: onlined 9
> [ 66.434014] rcu-torture:torture_onoff task: onlining 12
> [ 66.488805] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 66.532942] rcu-torture:torture_onoff task: onlined 12
> [ 67.533021] rcu-torture:torture_onoff task: offlining 3
> [ 67.599534] smpboot: CPU 3 is now offline
> [ 67.655672] rcu-torture:torture_onoff task: offlined 3
> [ 68.656019] rcu-torture:torture_onoff task: onlining 15
> [ 68.712267] smpboot: Booting Node 0 Processor 15 APIC 0xf
> [ 68.763417] rcu-torture:torture_onoff task: onlined 15
> [ 69.764019] rcu-torture:torture_onoff task: offlining 15
> [ 69.819284] smpboot: CPU 15 is now offline
> [ 69.873984] rcu-torture:torture_onoff task: offlined 15
> [ 70.874012] rcu-torture:torture_onoff task: onlining 3
> [ 70.949074] smpboot: Booting Node 0 Processor 3 APIC 0x3
> [ 70.983208] rcu-torture:torture_onoff task: onlined 3
> [ 71.983022] rcu-torture:torture_onoff task: onlining 10
> [ 72.009076] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 72.207488] rcu-torture:torture_onoff task: onlined 10
> [ 73.208011] rcu-torture:torture_onoff task: offlining 5
> [ 73.239256] smpboot: CPU 5 is now offline
> [ 73.243935] rcu-torture:torture_onoff task: offlined 5
> [ 74.244019] rcu-torture:torture_onoff task: onlining 4
> [ 74.252811] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 74.563168] rcu-torture:torture_onoff task: onlined 4
> [ 75.563012] rcu-torture:torture_onoff task: offlining 6
> [ 75.600357] smpboot: CPU 6 is now offline
> [ 75.625881] rcu-torture:torture_onoff task: offlined 6
> [ 76.626008] rcu-torture:torture_onoff task: offlining 11
> [ 76.634187] smpboot: CPU 11 is now offline
> [ 76.641088] rcu-torture:torture_onoff task: offlined 11
> [ 77.641015] rcu-torture:torture_onoff task: offlining 2
> [ 77.649235] smpboot: CPU 2 is now offline
> [ 77.655925] rcu-torture:torture_onoff task: offlined 2
> [ 78.656017] rcu-torture:torture_onoff task: offlining 13
> [ 78.666080] smpboot: CPU 13 is now offline
> [ 78.672926] rcu-torture:torture_onoff task: offlined 13
> [ 79.673018] rcu-torture:torture_onoff task: offlining 9
> [ 79.680209] smpboot: CPU 9 is now offline
> [ 79.686833] rcu-torture:torture_onoff task: offlined 9
> [ 80.687010] rcu-torture:torture_onoff task: onlining 9
> [ 80.695536] smpboot: Booting Node 0 Processor 9 APIC 0x9
> [ 80.722115] rcu-torture:torture_onoff task: onlined 9
> [ 81.722009] rcu-torture:torture_onoff task: offlining 10
> [ 81.804173] smpboot: CPU 10 is now offline
> [ 81.808697] rcu-torture:torture_onoff task: offlined 10
> [ 82.809011] rcu-torture:torture_onoff task: onlining 13
> [ 82.817598] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 82.992126] rcu-torture:torture_onoff task: onlined 13
> [ 83.992009] rcu-torture:torture_onoff task: onlining 1
> [ 84.024124] x86: Booting SMP configuration:
> [ 84.024445] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 84.253120] rcu-torture:torture_onoff task: onlined 1
> [ 85.253012] rcu-torture:torture_onoff task: offlining 8
> [ 85.353204] smpboot: CPU 8 is now offline
> [ 85.403738] rcu-torture:torture_onoff task: offlined 8
> [ 86.404008] rcu-torture:torture_onoff task: onlining 15
> [ 86.458466] smpboot: Booting Node 0 Processor 15 APIC 0xf
> [ 86.485146] rcu-torture:torture_onoff task: onlined 15
> [ 87.485026] rcu-torture:torture_onoff task: onlining 8
> [ 87.539695] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 87.597212] rcu-torture:torture_onoff task: onlined 8
> [ 88.597022] rcu-torture:torture_onoff task: onlining 2
> [ 88.652738] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 88.693197] rcu-torture:torture_onoff task: onlined 2
> [ 89.693018] rcu-torture:torture_onoff task: offlining 12
> [ 89.749592] smpboot: CPU 12 is now offline
> [ 89.804730] rcu-torture:torture_onoff task: offlined 12
> [ 90.805021] rcu-torture:torture_onoff task: offlining 7
> [ 90.878281] smpboot: CPU 7 is now offline
> [ 90.933559] rcu-torture:torture_onoff task: offlined 7
> [ 91.933009] rcu-torture:torture_onoff task: offlining 2
> [ 92.041205] smpboot: CPU 2 is now offline
> [ 92.085497] rcu-torture:torture_onoff task: offlined 2
> [ 93.085012] rcu-torture:torture_onoff task: onlining 14
> [ 93.092669] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 93.195163] rcu-torture:torture_onoff task: onlined 14
> [ 94.206214] rcu-torture:torture_onoff task: onlining 10
> [ 94.214679] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 94.335117] rcu-torture:torture_onoff task: onlined 10
> [ 95.335009] rcu-torture:torture_onoff task: onlining 5
> [ 95.343523] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 95.428133] rcu-torture:torture_onoff task: onlined 5
> [ 97.428020] rcu-torture:torture_onoff task: onlining 11
> [ 97.482836] smpboot: Booting Node 0 Processor 11 APIC 0xb
> [ 97.509239] rcu-torture:torture_onoff task: onlined 11
> [ 98.509045] rcu-torture:torture_onoff task: offlining 4
> [ 98.563737] smpboot: CPU 4 is now offline
> [ 98.618051] rcu-torture:torture_onoff task: offlined 4
> [ 99.618042] rcu-torture:torture_onoff task: offlining 13
> [ 99.689524] smpboot: CPU 13 is now offline
> [ 99.744813] rcu-torture:torture_onoff task: offlined 13
> [ 100.745028] rcu-torture:torture_onoff task: offlining 5
> [ 100.800212] smpboot: CPU 5 is now offline
> [ 100.854566] rcu-torture:torture_onoff task: offlined 5
> [ 101.854007] rcu-torture:torture_onoff task: onlining 12
> [ 101.878507] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 101.971166] rcu-torture:torture_onoff task: onlined 12
> [ 102.971012] rcu-torture:torture_onoff task: offlining 1
> [ 103.147591] smpboot: CPU 1 is now offline
> [ 103.152829] rcu-torture:torture_onoff task: offlined 1
> [ 104.153008] rcu-torture:torture_onoff task: onlining 4
> [ 104.168508] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 104.320120] rcu-torture:torture_onoff task: onlined 4
> [ 105.320012] rcu-torture:torture_onoff task: onlining 5
> [ 105.348790] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 105.408758] rcu-torture:torture_onoff task: onlined 5
> [ 106.409013] rcu-torture:torture_onoff task: offlining 5
> [ 106.464247] smpboot: CPU 5 is now offline
> [ 106.518638] rcu-torture:torture_onoff task: offlined 5
> [ 107.520011] rcu-torture:torture_onoff task: onlining 2
> [ 107.574734] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 107.605173] rcu-torture:torture_onoff task: onlined 2
> [ 108.606012] rcu-torture:torture_onoff task: onlining 13
> [ 108.660778] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 108.701176] rcu-torture:torture_onoff task: onlined 13
> [ 109.701020] rcu-torture:torture_onoff task: onlining 5
> [ 109.755826] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 109.842203] rcu-torture:torture_onoff task: onlined 5
> [ 110.842042] rcu-torture:torture_onoff task: offlining 11
> [ 110.962787] smpboot: CPU 11 is now offline
> [ 111.018932] rcu-torture:torture_onoff task: offlined 11
> [ 112.019012] rcu-torture:torture_onoff task: offlining 13
> [ 112.084250] smpboot: CPU 13 is now offline
> [ 112.136796] rcu-torture:torture_onoff task: offlined 13
> [ 113.137012] rcu-torture:torture_onoff task: offlining 12
> [ 113.154984] smpboot: CPU 12 is now offline
> [ 113.160855] rcu-torture:torture_onoff task: offlined 12
> [ 114.161011] rcu-torture:torture_onoff task: offlining 8
> [ 114.264240] smpboot: CPU 8 is now offline
> [ 114.276779] rcu-torture:torture_onoff task: offlined 8
> [ 116.277011] rcu-torture:torture_onoff task: offlining 5
> [ 116.333258] smpboot: CPU 5 is now offline
> [ 116.387757] rcu-torture:torture_onoff task: offlined 5
> [ 117.388014] rcu-torture:torture_onoff task: onlining 6
> [ 117.442499] smpboot: Booting Node 0 Processor 6 APIC 0x6
> [ 117.470138] rcu-torture:torture_onoff task: onlined 6
> [ 118.470013] rcu-torture:torture_onoff task: offlining 2
> [ 118.525211] smpboot: CPU 2 is now offline
> [ 118.529547] rcu-torture:torture_onoff task: offlined 2
> [ 119.529012] rcu-torture:torture_onoff task: onlining 11
> [ 119.537631] smpboot: Booting Node 0 Processor 11 APIC 0xb
> [ 119.564166] rcu-torture:torture_onoff task: onlined 11
> [ 120.564011] rcu-torture:torture_onoff task: offlining 14
> [ 120.619237] smpboot: CPU 14 is now offline
> [ 120.673701] rcu-torture:torture_onoff task: offlined 14
> [ 121.163011] rcu-torture: rtc: ffffffff820d6b80 ver: 972 tfle: 0 rta: 972 rtaf: 0 rtf: 963 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 427620 onoff: 48/48:56/56 35,319:14,232 5863:5519 (HZ=1000) barrier: 0/0:0 cbflood: 236
> [ 121.164580] rcu-torture: Reader Pipe: 3205717609 5572 0 0 0 0 0 0 0 0 0
> [ 121.165245] rcu-torture: Reader Batch: 3130266830 75456351 0 0 0 0 0 0 0 0 0
> [ 121.165928] rcu-torture: Free-Block Circulation: 971 971 970 969 968 967 966 965 964 963 0
> [ 121.674012] rcu-torture:torture_onoff task: onlining 13
> [ 121.682646] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 121.760166] rcu-torture:torture_onoff task: onlined 13
> [ 122.760013] rcu-torture:torture_onoff task: onlining 8
> [ 122.769709] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 122.796168] rcu-torture:torture_onoff task: onlined 8
> [ 123.796012] rcu-torture:torture_onoff task: offlining 13
> [ 123.911235] smpboot: CPU 13 is now offline
> [ 123.955786] rcu-torture:torture_onoff task: offlined 13
> [ 124.956012] rcu-torture:torture_onoff task: onlining 13
> [ 124.976740] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 125.064167] rcu-torture:torture_onoff task: onlined 13
> [ 126.064011] rcu-torture:torture_onoff task: offlining 8
> [ 126.237225] smpboot: CPU 8 is now offline
> [ 126.291774] rcu-torture:torture_onoff task: offlined 8
> [ 127.293014] rcu-torture:torture_onoff task: onlining 12
> [ 127.348537] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 127.375208] rcu-torture:torture_onoff task: onlined 12
> [ 128.375075] rcu-torture:torture_onoff task: offlining 12
> [ 128.428324] smpboot: CPU 12 is now offline
> [ 128.481630] rcu-torture:torture_onoff task: offlined 12
> [ 129.482056] rcu-torture:torture_onoff task: onlining 5
> [ 129.536575] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 129.562253] rcu-torture:torture_onoff task: onlined 5
> [ 130.562063] rcu-torture:torture_onoff task: onlining 8
> [ 130.616613] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 130.643248] rcu-torture:torture_onoff task: onlined 8
> [ 131.643021] rcu-torture:torture_onoff task: offlining 5
> [ 131.755237] smpboot: CPU 5 is now offline
> [ 131.770580] rcu-torture:torture_onoff task: offlined 5
> [ 132.772010] rcu-torture:torture_onoff task: offlining 11
> [ 132.831224] smpboot: CPU 11 is now offline
> [ 132.835566] rcu-torture:torture_onoff task: offlined 11
> [ 133.835008] rcu-torture:torture_onoff task: offlining 10
> [ 133.876259] smpboot: CPU 10 is now offline
> [ 133.880526] rcu-torture:torture_onoff task: offlined 10
> [ 134.880010] rcu-torture:torture_onoff task: offlining 3
> [ 134.977633] smpboot: CPU 3 is now offline
> [ 134.982503] rcu-torture:torture_onoff task: offlined 3
> [ 135.982008] rcu-torture:torture_onoff task: offlining 4
> [ 136.059186] smpboot: CPU 4 is now offline
> [ 136.072155] rcu-torture:torture_onoff task: offlined 4
> [ 137.072011] rcu-torture:torture_onoff task: onlining 14
> [ 137.080403] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 137.108127] rcu-torture:torture_onoff task: onlined 14
> [ 138.108010] rcu-torture:torture_onoff task: onlining 1
> [ 138.162404] x86: Booting SMP configuration:
> [ 138.162726] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 138.187156] rcu-torture:torture_onoff task: onlined 1
> [ 139.187026] rcu-torture:torture_onoff task: onlining 11
> [ 139.241678] smpboot: Booting Node 0 Processor 11 APIC 0xb
> [ 139.266211] rcu-torture:torture_onoff task: onlined 11
> [ 140.266085] rcu-torture:torture_onoff task: offlining 14
> [ 140.324971] smpboot: CPU 14 is now offline
> [ 140.379519] rcu-torture:torture_onoff task: offlined 14
> [ 141.379013] rcu-torture:torture_onoff task: onlining 10
> [ 141.387463] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 141.621164] rcu-torture:torture_onoff task: onlined 10
> [ 142.621011] rcu-torture:torture_onoff task: onlining 12
> [ 142.629728] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 142.753171] rcu-torture:torture_onoff task: onlined 12
> [ 143.753012] rcu-torture:torture_onoff task: onlining 7
> [ 143.793773] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 143.850176] rcu-torture:torture_onoff task: onlined 7
> [ 144.850014] rcu-torture:torture_onoff task: offlining 8
> [ 144.925278] smpboot: CPU 8 is now offline
> [ 144.972839] rcu-torture:torture_onoff task: offlined 8
> [ 145.973432] rcu-torture:torture_onoff task: offlining 1
> [ 145.988224] smpboot: CPU 1 is now offline
> [ 145.992547] rcu-torture:torture_onoff task: offlined 1
> [ 146.992070] rcu-torture:torture_onoff task: onlining 1
> [ 147.046569] x86: Booting SMP configuration:
> [ 147.046951] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 147.071234] rcu-torture:torture_onoff task: onlined 1
> [ 148.071082] rcu-torture:torture_onoff task: onlining 8
> [ 148.125583] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 148.246253] rcu-torture:torture_onoff task: onlined 8
> [ 149.246087] rcu-torture:torture_onoff task: offlining 6
> [ 149.301397] smpboot: CPU 6 is now offline
> [ 149.355742] rcu-torture:torture_onoff task: offlined 6
> [ 150.356083] rcu-torture:torture_onoff task: offlining 9
> [ 150.411331] smpboot: CPU 9 is now offline
> [ 150.465602] rcu-torture:torture_onoff task: offlined 9
> [ 151.466027] rcu-torture:torture_onoff task: onlining 4
> [ 151.506652] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 151.607282] rcu-torture:torture_onoff task: onlined 4
> [ 152.607013] rcu-torture:torture_onoff task: offlining 4
> [ 152.619229] smpboot: CPU 4 is now offline
> [ 152.623673] rcu-torture:torture_onoff task: offlined 4
> [ 153.624012] rcu-torture:torture_onoff task: offlining 10
> [ 153.642208] smpboot: CPU 10 is now offline
> [ 153.646624] rcu-torture:torture_onoff task: offlined 10
> [ 154.647009] rcu-torture:torture_onoff task: onlining 6
> [ 154.672468] smpboot: Booting Node 0 Processor 6 APIC 0x6
> [ 154.952173] rcu-torture:torture_onoff task: onlined 6
> [ 155.952011] rcu-torture:torture_onoff task: offlining 7
> [ 155.998230] smpboot: CPU 7 is now offline
> [ 156.040732] rcu-torture:torture_onoff task: offlined 7
> [ 157.041007] rcu-torture:torture_onoff task: onlining 14
> [ 157.095463] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 157.123126] rcu-torture:torture_onoff task: onlined 14
> [ 158.124008] rcu-torture:torture_onoff task: onlining 10
> [ 158.179465] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 158.208159] rcu-torture:torture_onoff task: onlined 10
> [ 159.209012] rcu-torture:torture_onoff task: offlining 11
> [ 159.288513] smpboot: CPU 11 is now offline
> [ 159.342602] rcu-torture:torture_onoff task: offlined 11
> [ 161.343028] rcu-torture:torture_onoff task: offlining 10
> [ 161.532630] smpboot: CPU 10 is now offline
> [ 161.538953] rcu-torture:torture_onoff task: offlined 10
> [ 162.539012] rcu-torture:torture_onoff task: onlining 9
> [ 162.592954] smpboot: Booting Node 0 Processor 9 APIC 0x9
> [ 162.691169] rcu-torture:torture_onoff task: onlined 9
> [ 163.699428] rcu-torture:torture_onoff task: offlining 12
> [ 163.787094] smpboot: CPU 12 is now offline
> [ 163.791727] rcu-torture:torture_onoff task: offlined 12
> [ 164.792008] rcu-torture:torture_onoff task: onlining 2
> [ 164.832477] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 164.926143] rcu-torture:torture_onoff task: onlined 2
> [ 165.926008] rcu-torture:torture_onoff task: offlining 13
> [ 165.977219] smpboot: CPU 13 is now offline
> [ 165.983491] rcu-torture:torture_onoff task: offlined 13
> [ 166.983009] rcu-torture:torture_onoff task: onlining 11
> [ 167.037444] smpboot: Booting Node 0 Processor 11 APIC 0xb
> [ 167.091149] rcu-torture:torture_onoff task: onlined 11
> [ 168.091022] rcu-torture:torture_onoff task: onlining 13
> [ 168.146672] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 168.205181] rcu-torture:torture_onoff task: onlined 13
> [ 169.205020] rcu-torture:torture_onoff task: offlining 2
> [ 169.261253] smpboot: CPU 2 is now offline
> [ 169.316811] rcu-torture:torture_onoff task: offlined 2
> [ 170.317021] rcu-torture:torture_onoff task: onlining 10
> [ 170.372697] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 170.426193] rcu-torture:torture_onoff task: onlined 10
> [ 171.426012] rcu-torture:torture_onoff task: onlining 5
> [ 171.471808] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 171.589994] rcu-torture:torture_onoff task: onlined 5
> [ 172.590013] rcu-torture:torture_onoff task: onlining 2
> [ 172.598761] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 172.751166] rcu-torture:torture_onoff task: onlined 2
> [ 173.751011] rcu-torture:torture_onoff task: onlining 3
> [ 173.805841] smpboot: Booting Node 0 Processor 3 APIC 0x3
> [ 174.070161] rcu-torture:torture_onoff task: onlined 3
> [ 175.080195] rcu-torture:torture_onoff task: offlining 5
> [ 175.179614] smpboot: CPU 5 is now offline
> [ 175.186036] rcu-torture:torture_onoff task: offlined 5
> [ 176.186026] rcu-torture:torture_onoff task: offlining 10
> [ 176.252265] smpboot: CPU 10 is now offline
> [ 176.306864] rcu-torture:torture_onoff task: offlined 10
> [ 178.307012] rcu-torture:torture_onoff task: offlining 9
> [ 178.398309] smpboot: CPU 9 is now offline
> [ 178.452600] rcu-torture:torture_onoff task: offlined 9
> [ 179.453008] rcu-torture:torture_onoff task: offlining 3
> [ 179.508214] smpboot: CPU 3 is now offline
> [ 179.562522] rcu-torture:torture_onoff task: offlined 3
> [ 180.562008] rcu-torture:torture_onoff task: offlining 14
> [ 180.617202] smpboot: CPU 14 is now offline
> [ 180.671471] rcu-torture:torture_onoff task: offlined 14
> [ 181.166014] rcu-torture: rtc: ffffffff820d6760 ver: 1451 tfle: 0 rta: 1451 rtaf: 0 rtf: 1442 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 640476 onoff: 74/74:82/82 35,319:14,232 9128:8228 (HZ=1000) barrier: 0/0:0 cbflood: 352
> [ 181.168279] rcu-torture: Reader Pipe: 4782759012 8318 0 0 0 0 0 0 0 0 0
> [ 181.169233] rcu-torture: Reader Batch: 4672385735 110381595 0 0 0 0 0 0 0 0 0
> [ 181.170216] rcu-torture: Free-Block Circulation: 1450 1450 1449 1448 1447 1446 1445 1444 1443 1442 0
> [ 181.692232] rcu-torture:torture_onoff task: onlining 10
> [ 181.754674] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 181.833162] rcu-torture:torture_onoff task: onlined 10
> [ 182.833013] rcu-torture:torture_onoff task: offlining 8
> [ 182.899242] smpboot: CPU 8 is now offline
> [ 182.941036] rcu-torture:torture_onoff task: offlined 8
> [ 183.964159] rcu-torture:torture_onoff task: offlining 6
> [ 183.984255] smpboot: CPU 6 is now offline
> [ 183.988894] rcu-torture:torture_onoff task: offlined 6
> [ 184.989013] rcu-torture:torture_onoff task: onlining 5
> [ 185.026816] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 185.058174] rcu-torture:torture_onoff task: onlined 5
> [ 186.058022] rcu-torture:torture_onoff task: offlining 5
> [ 186.087219] smpboot: CPU 5 is now offline
> [ 186.091684] rcu-torture:torture_onoff task: offlined 5
> [ 187.092028] rcu-torture:torture_onoff task: onlining 5
> [ 187.147618] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 187.177207] rcu-torture:torture_onoff task: onlined 5
> [ 188.177014] rcu-torture:torture_onoff task: onlining 4
> [ 191.251478] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 191.400144] rcu-torture:torture_onoff task: onlined 4
> [ 192.400012] rcu-torture:torture_onoff task: offlining 4
> [ 192.569230] smpboot: CPU 4 is now offline
> [ 192.573752] rcu-torture:torture_onoff task: offlined 4
> [ 193.574011] rcu-torture:torture_onoff task: onlining 4
> [ 193.583672] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 193.673166] rcu-torture:torture_onoff task: onlined 4
> [ 194.673021] rcu-torture:torture_onoff task: onlining 3
> [ 194.698722] smpboot: Booting Node 0 Processor 3 APIC 0x3
> [ 194.900169] rcu-torture:torture_onoff task: onlined 3
> [ 195.900011] rcu-torture:torture_onoff task: offlining 1
> [ 195.923236] smpboot: CPU 1 is now offline
> [ 195.928847] rcu-torture:torture_onoff task: offlined 1
> [ 196.929012] rcu-torture:torture_onoff task: onlining 14
> [ 196.983708] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 197.006351] rcu-torture:torture_onoff task: onlined 14
> [ 198.006015] rcu-torture:torture_onoff task: offlining 11
> [ 198.061232] smpboot: CPU 11 is now offline
> [ 198.115789] rcu-torture:torture_onoff task: offlined 11
> [ 199.116014] rcu-torture:torture_onoff task: onlining 6
> [ 199.170674] smpboot: Booting Node 0 Processor 6 APIC 0x6
> [ 199.193338] rcu-torture:torture_onoff task: onlined 6
> [ 200.193014] rcu-torture:torture_onoff task: offlining 15
> [ 200.248238] smpboot: CPU 15 is now offline
> [ 200.302540] rcu-torture:torture_onoff task: offlined 15
> [ 201.302008] rcu-torture:torture_onoff task: onlining 8
> [ 201.310466] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 201.422183] rcu-torture:torture_onoff task: onlined 8
> [ 202.422013] rcu-torture:torture_onoff task: offlining 14
> [ 202.548257] smpboot: CPU 14 is now offline
> [ 202.594923] rcu-torture:torture_onoff task: offlined 14
> [ 203.595023] rcu-torture:torture_onoff task: offlining 2
> [ 203.659226] smpboot: CPU 2 is now offline
> [ 203.706239] rcu-torture:torture_onoff task: offlined 2
> [ 204.706011] rcu-torture:torture_onoff task: offlining 4
> [ 204.739154] smpboot: CPU 4 is now offline
> [ 204.743676] rcu-torture:torture_onoff task: offlined 4
> [ 205.744016] rcu-torture:torture_onoff task: onlining 4
> [ 205.752612] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 205.793165] rcu-torture:torture_onoff task: onlined 4
> [ 206.793016] rcu-torture:torture_onoff task: onlining 1
> [ 206.848662] x86: Booting SMP configuration:
> [ 206.849145] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 206.902207] rcu-torture:torture_onoff task: onlined 1
> [ 207.902020] rcu-torture:torture_onoff task: onlining 12
> [ 207.957701] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 207.986192] rcu-torture:torture_onoff task: onlined 12
> [ 208.986079] rcu-torture:torture_onoff task: offlining 4
> [ 209.092090] smpboot: CPU 4 is now offline
> [ 209.146701] rcu-torture:torture_onoff task: offlined 4
> [ 210.147068] rcu-torture:torture_onoff task: offlining 8
> [ 210.215055] smpboot: CPU 8 is now offline
> [ 210.269872] rcu-torture:torture_onoff task: offlined 8
> [ 211.270011] rcu-torture:torture_onoff task: onlining 9
> [ 211.279694] smpboot: Booting Node 0 Processor 9 APIC 0x9
> [ 211.419172] rcu-torture:torture_onoff task: onlined 9
> [ 212.449010] rcu-torture:torture_onoff task: onlining 7
> [ 212.457481] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 212.686120] rcu-torture:torture_onoff task: onlined 7
> [ 213.686026] rcu-torture:torture_onoff task: offlining 1
> [ 213.830250] smpboot: CPU 1 is now offline
> [ 213.834810] rcu-torture:torture_onoff task: offlined 1
> [ 214.835012] rcu-torture:torture_onoff task: offlining 7
> [ 214.846257] smpboot: CPU 7 is now offline
> [ 214.850711] rcu-torture:torture_onoff task: offlined 7
> [ 215.851012] rcu-torture:torture_onoff task: offlining 9
> [ 215.866262] smpboot: CPU 9 is now offline
> [ 215.915500] rcu-torture:torture_onoff task: offlined 9
> [ 216.915011] rcu-torture:torture_onoff task: onlining 7
> [ 216.923407] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 216.949146] rcu-torture:torture_onoff task: onlined 7
> [ 217.949009] rcu-torture:torture_onoff task: onlining 1
> [ 218.003444] x86: Booting SMP configuration:
> [ 218.003775] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 218.032159] rcu-torture:torture_onoff task: onlined 1
> [ 219.032015] rcu-torture:torture_onoff task: offlining 6
> [ 219.087239] smpboot: CPU 6 is now offline
> [ 219.141521] rcu-torture:torture_onoff task: offlined 6
> [ 220.141012] rcu-torture:torture_onoff task: onlining 6
> [ 220.149451] smpboot: Booting Node 0 Processor 6 APIC 0x6
> [ 220.175130] rcu-torture:torture_onoff task: onlined 6
> [ 221.175014] rcu-torture:torture_onoff task: offlining 1
> [ 221.230231] smpboot: CPU 1 is now offline
> [ 221.245187] rcu-torture:torture_onoff task: offlined 1
> [ 222.245890] rcu-torture:torture_onoff task: offlining 7
> [ 222.313765] smpboot: CPU 7 is now offline
> [ 222.318570] rcu-torture:torture_onoff task: offlined 7
> [ 223.319033] rcu-torture:torture_onoff task: onlining 7
> [ 223.364428] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 223.534164] rcu-torture:torture_onoff task: onlined 7
> [ 224.534007] rcu-torture:torture_onoff task: onlining 2
> [ 224.542438] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 224.650320] rcu-torture:torture_onoff task: onlined 2
> [ 225.667934] rcu-torture:torture_onoff task: onlining 8
> [ 225.689715] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 226.055186] rcu-torture:torture_onoff task: onlined 8
> [ 227.055016] rcu-torture:torture_onoff task: offlining 7
> [ 227.110245] smpboot: CPU 7 is now offline
> [ 227.164585] rcu-torture:torture_onoff task: offlined 7
> [ 229.164037] rcu-torture:torture_onoff task: offlining 3
> [ 229.222238] smpboot: CPU 3 is now offline
> [ 229.277038] rcu-torture:torture_onoff task: offlined 3
> [ 231.277011] rcu-torture:torture_onoff task: offlining 6
> [ 231.330544] smpboot: CPU 6 is now offline
> [ 231.378858] rcu-torture:torture_onoff task: offlined 6
> [ 232.379622] rcu-torture:torture_onoff task: offlining 5
> [ 232.452196] smpboot: CPU 5 is now offline
> [ 232.506626] rcu-torture:torture_onoff task: offlined 5
> [ 233.507009] rcu-torture:torture_onoff task: offlining 13
> [ 233.681190] smpboot: CPU 13 is now offline
> [ 233.685601] rcu-torture:torture_onoff task: offlined 13
> [ 234.686009] rcu-torture:torture_onoff task: onlining 13
> [ 234.739469] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 234.777109] rcu-torture:torture_onoff task: onlined 13
> [ 235.777009] rcu-torture:torture_onoff task: onlining 7
> [ 235.792560] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 235.894313] rcu-torture:torture_onoff task: onlined 7
> [ 236.894008] rcu-torture:torture_onoff task: offlining 8
> [ 236.949250] smpboot: CPU 8 is now offline
> [ 237.005598] rcu-torture:torture_onoff task: offlined 8
> [ 238.005071] rcu-torture:torture_onoff task: offlining 2
> [ 238.060298] smpboot: CPU 2 is now offline
> [ 238.114455] rcu-torture:torture_onoff task: offlined 2
> [ 239.115009] rcu-torture:torture_onoff task: onlining 4
> [ 239.169339] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 239.196127] rcu-torture:torture_onoff task: onlined 4
> [ 240.196009] rcu-torture:torture_onoff task: onlining 14
> [ 240.250356] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 240.276143] rcu-torture:torture_onoff task: onlined 14
> [ 241.171022] rcu-torture: rtc: ffffffff820d6d30 ver: 1972 tfle: 0 rta: 1972 rtaf: 0 rtf: 1963 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 821755 onoff: 98/98:107/107 34,3223:14,232 15097:10753 (HZ=1000) barrier: 0/0:0 cbflood: 469
> [ 241.172670] rcu-torture: Reader Pipe: 6230009275 11244 0 0 0 0 0 0 0 0 0
> [ 241.173342] rcu-torture: Reader Batch: 6077569610 152450909 0 0 0 0 0 0 0 0 0
> [ 241.174041] rcu-torture: Free-Block Circulation: 1971 1971 1970 1969 1968 1967 1966 1965 1964 1963 0
> [ 241.302095] rcu-torture:torture_onoff task: onlining 15
> [ 241.338408] smpboot: Booting Node 0 Processor 15 APIC 0xf
> [ 241.403182] rcu-torture:torture_onoff task: onlined 15
> [ 242.403011] rcu-torture:torture_onoff task: onlining 8
> [ 242.411629] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 242.598170] rcu-torture:torture_onoff task: onlined 8
> [ 243.598011] rcu-torture:torture_onoff task: offlining 8
> [ 243.638205] smpboot: CPU 8 is now offline
> [ 243.643015] rcu-torture:torture_onoff task: offlined 8
> [ 244.675380] rcu-torture:torture_onoff task: offlining 15
> [ 244.697825] smpboot: CPU 15 is now offline
> [ 244.703386] rcu-torture:torture_onoff task: offlined 15
> [ 245.703009] rcu-torture:torture_onoff task: offlining 13
> [ 245.836597] smpboot: CPU 13 is now offline
> [ 245.840638] rcu-torture:torture_onoff task: offlined 13
> [ 246.841011] rcu-torture:torture_onoff task: onlining 2
> [ 246.849513] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 246.876125] rcu-torture:torture_onoff task: onlined 2
> [ 247.876013] rcu-torture:torture_onoff task: offlining 14
> [ 247.931174] smpboot: CPU 14 is now offline
> [ 247.986453] rcu-torture:torture_onoff task: offlined 14
> [ 248.986012] rcu-torture:torture_onoff task: onlining 15
> [ 248.994361] smpboot: Booting Node 0 Processor 15 APIC 0xf
> [ 249.020164] rcu-torture:torture_onoff task: onlined 15
> [ 250.020013] rcu-torture:torture_onoff task: offlining 7
> [ 250.027190] smpboot: CPU 7 is now offline
> [ 250.031444] rcu-torture:torture_onoff task: offlined 7
> [ 251.031008] rcu-torture:torture_onoff task: onlining 5
> [ 251.039363] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 251.065109] rcu-torture:torture_onoff task: onlined 5
> [ 252.065009] rcu-torture:torture_onoff task: onlining 8
> [ 252.200399] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 252.412118] rcu-torture:torture_onoff task: onlined 8
> [ 253.443465] rcu-torture:torture_onoff task: onlining 1
> [ 253.452680] x86: Booting SMP configuration:
> [ 253.453200] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 253.480175] rcu-torture:torture_onoff task: onlined 1
> [ 255.480012] rcu-torture:torture_onoff task: onlining 3
> [ 255.497717] smpboot: Booting Node 0 Processor 3 APIC 0x3
> [ 255.581151] rcu-torture:torture_onoff task: onlined 3
> [ 256.581019] rcu-torture:torture_onoff task: offlining 12
> [ 256.639488] smpboot: CPU 12 is now offline
> [ 256.696557] rcu-torture:torture_onoff task: offlined 12
> [ 257.697028] rcu-torture:torture_onoff task: offlining 10
> [ 257.792240] smpboot: CPU 10 is now offline
> [ 257.846715] rcu-torture:torture_onoff task: offlined 10
> [ 258.847026] rcu-torture:torture_onoff task: onlining 12
> [ 259.702842] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 259.746426] rcu-torture:torture_onoff task: onlined 12
> [ 260.747028] rcu-torture:torture_onoff task: offlining 2
> [ 261.294198] smpboot: CPU 2 is now offline
> [ 261.298961] rcu-torture:torture_onoff task: offlined 2
> [ 262.337169] rcu-torture:torture_onoff task: onlining 13
> [ 262.373898] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 262.517168] rcu-torture:torture_onoff task: onlined 13
> [ 263.518011] rcu-torture:torture_onoff task: offlining 12
> [ 263.547235] smpboot: CPU 12 is now offline
> [ 263.597744] rcu-torture:torture_onoff task: offlined 12
> [ 264.599177] rcu-torture:torture_onoff task: offlining 15
> [ 264.639259] smpboot: CPU 15 is now offline
> [ 264.685479] rcu-torture:torture_onoff task: offlined 15
> [ 265.705420] rcu-torture:torture_onoff task: onlining 6
> [ 265.723408] smpboot: Booting Node 0 Processor 6 APIC 0x6
> [ 265.769132] rcu-torture:torture_onoff task: onlined 6
> [ 267.769062] rcu-torture:torture_onoff task: offlining 13
> [ 267.824295] smpboot: CPU 13 is now offline
> [ 267.878505] rcu-torture:torture_onoff task: offlined 13
> [ 268.878008] rcu-torture:torture_onoff task: onlining 14
> [ 268.932411] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 268.958155] rcu-torture:torture_onoff task: onlined 14
> [ 269.958015] rcu-torture:torture_onoff task: offlining 1
> [ 270.013265] smpboot: CPU 1 is now offline
> [ 270.067678] rcu-torture:torture_onoff task: offlined 1
> [ 271.068092] rcu-torture:torture_onoff task: onlining 7
> [ 271.122640] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 271.148345] rcu-torture:torture_onoff task: onlined 7
> [ 273.148012] rcu-torture:torture_onoff task: onlining 12
> [ 273.156895] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 273.228932] rcu-torture:torture_onoff task: onlined 12
> [ 274.229627] rcu-torture:torture_onoff task: onlining 9
> [ 274.239860] smpboot: Booting Node 0 Processor 9 APIC 0x9
> [ 274.335157] rcu-torture:torture_onoff task: onlined 9
> [ 275.335012] rcu-torture:torture_onoff task: offlining 8
> [ 275.383214] smpboot: CPU 8 is now offline
> [ 275.406042] rcu-torture:torture_onoff task: offlined 8
> [ 276.406017] rcu-torture:torture_onoff task: onlining 10
> [ 276.460653] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 276.489140] rcu-torture:torture_onoff task: onlined 10
> [ 277.489039] rcu-torture:torture_onoff task: onlining 13
> [ 277.558410] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 277.587402] rcu-torture:torture_onoff task: onlined 13
> [ 278.588352] rcu-torture:torture_onoff task: onlining 1
> [ 278.642988] x86: Booting SMP configuration:
> [ 278.643476] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 278.682425] rcu-torture:torture_onoff task: onlined 1
> [ 279.683020] rcu-torture:torture_onoff task: offlining 7
> [ 279.739540] smpboot: CPU 7 is now offline
> [ 279.792913] rcu-torture:torture_onoff task: offlined 7
> [ 280.793054] rcu-torture:torture_onoff task: offlining 14
> [ 280.858439] smpboot: CPU 14 is now offline
> [ 280.913004] rcu-torture:torture_onoff task: offlined 14
> [ 281.918280] rcu-torture:torture_onoff task: offlining 5
> [ 281.961289] smpboot: CPU 5 is now offline
> [ 281.966746] rcu-torture:torture_onoff task: offlined 5
> [ 282.967009] rcu-torture:torture_onoff task: onlining 14
> [ 282.978634] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 283.102133] rcu-torture:torture_onoff task: onlined 14
> [ 284.106745] rcu-torture:torture_onoff task: offlining 6
> [ 284.200248] smpboot: CPU 6 is now offline
> [ 284.205012] rcu-torture:torture_onoff task: offlined 6
> [ 286.205019] rcu-torture:torture_onoff task: offlining 9
> [ 286.261333] smpboot: CPU 9 is now offline
> [ 286.267960] rcu-torture:torture_onoff task: offlined 9
> [ 287.268016] rcu-torture:torture_onoff task: onlining 2
> [ 287.322841] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 287.350199] rcu-torture:torture_onoff task: onlined 2
> [ 288.350017] rcu-torture:torture_onoff task: onlining 11
> [ 288.404892] smpboot: Booting Node 0 Processor 11 APIC 0xb
> [ 288.433392] rcu-torture:torture_onoff task: onlined 11
> [ 289.434021] rcu-torture:torture_onoff task: offlining 4
> [ 289.498357] smpboot: CPU 4 is now offline
> [ 289.551981] rcu-torture:torture_onoff task: offlined 4
> [ 290.552025] rcu-torture:torture_onoff task: offlining 12
> [ 290.608217] smpboot: CPU 12 is now offline
> [ 290.672899] rcu-torture:torture_onoff task: offlined 12
> [ 291.673013] rcu-torture:torture_onoff task: offlining 3
> [ 291.729198] smpboot: CPU 3 is now offline
> [ 291.733673] rcu-torture:torture_onoff task: offlined 3
> [ 292.734013] rcu-torture:torture_onoff task: onlining 9
> [ 292.777604] smpboot: Booting Node 0 Processor 9 APIC 0x9
> [ 292.885143] rcu-torture:torture_onoff task: onlined 9
> [ 293.885011] rcu-torture:torture_onoff task: onlining 15
> [ 293.893633] smpboot: Booting Node 0 Processor 15 APIC 0xf
> [ 294.034163] rcu-torture:torture_onoff task: onlined 15
> [ 295.065074] rcu-torture:torture_onoff task: offlining 2
> [ 295.118208] smpboot: CPU 2 is now offline
> [ 295.124735] rcu-torture:torture_onoff task: offlined 2
> [ 296.160078] rcu-torture:torture_onoff task: onlining 4
> [ 296.176467] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 296.346146] rcu-torture:torture_onoff task: onlined 4
> [ 297.346015] rcu-torture:torture_onoff task: onlining 5
> [ 297.400478] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 297.428210] rcu-torture:torture_onoff task: onlined 5
> [ 298.428038] rcu-torture:torture_onoff task: onlining 3
> [ 298.499156] smpboot: Booting Node 0 Processor 3 APIC 0x3
> [ 298.551823] rcu-torture:torture_onoff task: onlined 3
> [ 300.552021] rcu-torture:torture_onoff task: offlining 10
> [ 300.609517] smpboot: CPU 10 is now offline
> [ 300.664816] rcu-torture:torture_onoff task: offlined 10
> [ 301.174013] rcu-torture: rtc: ffffffff820d63a0 ver: 2525 tfle: 0 rta: 2525 rtaf: 0 rtf: 2516 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1000461 onoff: 124/124:130/130 34,3223:11,552 18699:13272 (HZ=1000) barrier: 0/0:0 cbflood: 588
> [ 301.176369] rcu-torture: Reader Pipe: 7696148438 14411 0 0 0 0 0 0 0 0 0
> [ 301.177314] rcu-torture: Reader Batch: 7505961227 190201622 0 0 0 0 0 0 0 0 0
> [ 301.178302] rcu-torture: Free-Block Circulation: 2524 2524 2523 2522 2521 2520 2519 2518 2517 2516 0
> [ 301.665013] rcu-torture:torture_onoff task: onlining 2
> [ 301.673722] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 301.742192] rcu-torture:torture_onoff task: onlined 2
> [ 302.742013] rcu-torture:torture_onoff task: onlining 7
> [ 302.750787] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 302.833156] rcu-torture:torture_onoff task: onlined 7
> [ 303.833014] rcu-torture:torture_onoff task: offlining 9
> [ 303.868266] smpboot: CPU 9 is now offline
> [ 303.917852] rcu-torture:torture_onoff task: offlined 9
> [ 304.918011] rcu-torture:torture_onoff task: onlining 8
> [ 304.926769] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 305.000154] rcu-torture:torture_onoff task: onlined 8
> [ 306.000014] rcu-torture:torture_onoff task: offlining 4
> [ 306.074862] smpboot: CPU 4 is now offline
> [ 306.079901] rcu-torture:torture_onoff task: offlined 4
> [ 307.081011] rcu-torture:torture_onoff task: onlining 12
> [ 307.135781] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 307.230838] rcu-torture:torture_onoff task: onlined 12
> [ 308.231033] rcu-torture:torture_onoff task: offlining 1
> [ 308.291112] smpboot: CPU 1 is now offline
> [ 308.291635] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 308.292063] IP: [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> [ 308.292063] PGD 0
> [ 308.292063] Oops: 0002 [#1] PREEMPT SMP
> [ 308.292063] Modules linked in:
> [ 308.292063] CPU: 11 PID: 798 Comm: torture_onoff Not tainted 4.5.0-rc1+ #14
> [ 308.292063] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 308.292063] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
> [ 308.292063] RIP: 0010:[<ffffffff810b9452>] [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> [ 308.292063] RSP: 0018:ffff88007c6f7c98 EFLAGS: 00010086
> [ 308.292063] RAX: dead000000000200 RBX: ffff88007fb6cc00 RCX: ffff88007fa2cc00
> [ 308.292063] RDX: 0000000000000000 RSI: ffff88007fa2d6d0 RDI: ffff88007fb6cc00
> [ 308.292063] RBP: ffff88007c6f7cc0 R08: 0000000000000000 R09: ffffffff81e4d360
> [ 308.292063] R10: ffffea0001f2daa0 R11: 0000000000000000 R12: ffff88007fa2d6d0
> [ 308.292063] R13: ffff88007fb6cc00 R14: 000000000000000b R15: ffff88007fa2c420
> [ 308.292063] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 308.292063] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 308.292063] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 308.292063] Stack:
> [ 308.292063] ffff88007fb6cc00 ffff88007fa2d6d8 ffff88007fa2dad0 ffff88007fa2d8d0
> [ 308.292063] ffff88007fa2d4d8 ffff88007c6f7d08 ffffffff810b95c4 ffff88007fa2cc00
> [ 308.292063] ffff88007fa2d648 00000000fffffff0 ffffffff81e4e0c0 0000000000000007
> [ 308.292063] Call Trace:
> [ 308.292063] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 308.292063] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 308.292063] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 308.292063] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 308.292063] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 308.292063] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 308.292063] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 308.292063] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 308.292063] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 308.292063] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 308.292063] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 308.292063] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 308.292063] Code: 56 41 55 41 54 53 48 8b 06 44 8b 77 40 48 85 c0 74 53 49 89 fd 49 89 f4 4d 8b 3c 24 66 66 66 66 90 49 8b 07 49 8b 57 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 00 00 00 00 ad de 4c 89
> [ 308.292063] RIP [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> [ 308.292063] RSP <ffff88007c6f7c98>
> [ 308.292063] CR2: 0000000000000000
> [ 308.292063] ---[ end trace 29cb5d70ad875872 ]---
> [ 308.292063] note: torture_onoff[798] exited with preempt_count 3
> [ 336.362003] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 336.362003] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=7000
> [ 336.362003] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=7000
> [ 336.362003] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=7001
> [ 336.362003] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=7001
> [ 336.362003] (detected by 7, t=21006 jiffies, g=4731, c=4730, q=2)
> [ 336.362003] Task dump for CPU 3:
> [ 336.362003] rcu_torture_rea R running task 14760 782 2 0x00000008
> [ 336.362003] 0000000021ca5292 0000000000000001 00000000cfc06af0 ffff88007c5bfcf0
> [ 336.362003] ffffffff813480d7 ffff88007c5bfd20 ffffffff8133944d ffff88007fb6cc00
> [ 336.362003] 0000000021cadf3e 0000000000000001 00000000cfc06af0 ffff88007c5bfd30
> [ 336.362003] Call Trace:
> [ 336.362003] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 336.362003] [<ffffffff8133944d>] ? delay_tsc+0x1d/0xc0
> [ 336.362003] [<ffffffff8133930a>] ? __delay+0xa/0x10
> [ 336.362003] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
> [ 336.362003] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 336.362003] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 336.362003] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 336.362003] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 336.362003] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 336.362003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 336.362003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 336.362003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 336.362003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 336.362003] Task dump for CPU 8:
> [ 336.362003] rcu_torture_rea R running task 14760 789 2 0x00000008
> [ 336.362003] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
> [ 336.362003] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
> [ 336.362003] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
> [ 336.362003] Call Trace:
> [ 336.362003] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
> [ 336.362003] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
> [ 336.362003] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
> [ 336.362003] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 336.362003] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 336.362003] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
> [ 336.362003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 336.362003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 336.362003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 336.362003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 336.362003] Task dump for CPU 11:
> [ 336.362003] torture_onoff R running task 13416 798 2 0x00000008
> [ 336.362003] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
> [ 336.362003] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
> [ 336.362003] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
> [ 336.362003] Call Trace:
> [ 336.362003] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
> [ 336.362003] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
> [ 336.362003] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
> [ 336.362003] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
> [ 336.362003] [<ffffffff818b6422>] ? page_fault+0x22/0x30
> [ 336.362003] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 336.362003] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
> [ 336.362003] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
> [ 336.362003] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
> [ 336.362003] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
> [ 336.362003] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
> [ 336.362003] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 336.362003] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 336.362003] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 336.362003] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 336.362003] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
> [ 336.362003] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
> [ 336.362003] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 336.362003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 336.362003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 336.362003] Task dump for CPU 12:
> [ 336.362003] rcu_torture_rea R running task 14760 786 2 0x00000008
> [ 336.362003] 0000000021c7f59f 0000000000000001 00000000cfc06af0 ffff88007c0dfcf0
> [ 336.362003] ffffffff813480d7 ffff88007c0dfd20 ffffffff81339448 ffff88007fa2cc00
> [ 336.362003] 0000000021c888b8 0000000000000001 00000000cfc06af0 ffff88007c0dfd30
> [ 336.362003] Call Trace:
> [ 336.362003] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 336.362003] [<ffffffff8133944d>] ? delay_tsc+0x1d/0xc0
> [ 336.362003] [<ffffffff8133930a>] ? __delay+0xa/0x10
> [ 336.362003] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
> [ 336.362003] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 336.362003] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 336.362003] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 336.362003] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 336.362003] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 336.362003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 336.362003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 336.362003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 336.362003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 336.362003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 361.179014] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1144231 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
> [ 361.181325] rcu-torture: Reader Pipe: 8730585935 14768 0 0 0 0 0 0 0 0 0
> [ 361.182261] rcu-torture: Reader Batch: 8415137892 315462811 0 0 0 0 0 0 0 0 0
> [ 361.183234] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
> [ 399.367004] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 399.367004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=27770
> [ 399.367004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=27770
> [ 399.367004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=27770
> [ 399.367004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=27771
> [ 399.367004] (detected by 14, t=84011 jiffies, g=4731, c=4730, q=2)
> [ 399.367004] Task dump for CPU 3:
> [ 399.367004] rcu_torture_rea R running task 14760 782 2 0x00000008
> [ 399.367004] 000000008025ff9c 0000000000000001 00000000cfc06af0 ffff88007c5bfcf0
> [ 399.367004] ffffffff813480d7 ffff88007c5bfd20 ffffffff813394bf ffff88007fb6cc00
> [ 399.367004] 0000000080269050 0000000000000001 00000000cfc06af0 ffff88007c5bfd30
> [ 399.367004] Call Trace:
> [ 399.367004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 399.367004] [<ffffffff8133944d>] ? delay_tsc+0x1d/0xc0
> [ 399.367004] [<ffffffff8133930a>] ? __delay+0xa/0x10
> [ 399.367004] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
> [ 399.367004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 399.367004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 399.367004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 399.367004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 399.367004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 399.367004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 399.367004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 399.367004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 399.367004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 399.367004] Task dump for CPU 8:
> [ 399.367004] rcu_torture_rea R running task 14760 789 2 0x00000008
> [ 399.367004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
> [ 399.367004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
> [ 399.367004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
> [ 399.367004] Call Trace:
> [ 399.367004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
> [ 399.367004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
> [ 399.367004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
> [ 399.367004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 399.367004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 399.367004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
> [ 399.367004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 399.367004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 399.367004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 399.367004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 399.367004] Task dump for CPU 11:
> [ 399.367004] torture_onoff R running task 13416 798 2 0x00000008
> [ 399.367004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
> [ 399.367004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
> [ 399.367004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
> [ 399.367004] Call Trace:
> [ 399.367004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
> [ 399.367004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
> [ 399.367004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
> [ 399.367004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
> [ 399.367004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
> [ 399.367004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 399.367004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
> [ 399.367004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
> [ 399.367004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
> [ 399.367004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
> [ 399.367004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
> [ 399.367004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 399.367004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 399.367004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 399.367004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 399.367004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
> [ 399.367004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
> [ 399.367004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 399.367004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 399.367004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 399.367004] Task dump for CPU 12:
> [ 399.367004] rcu_torture_rea R running task 14760 786 2 0x00000008
> [ 399.367004] 0000000081556309 0000000000000001 00000000cfc06af0 ffff88007c0dfcf0
> [ 399.367004] ffffffff813480d7 ffff88007c0dfd20 ffffffff81339448 ffff88007fa2cc00
> [ 399.367004] 000000008155f790 0000000000000001 00000000cfc06af0 ffff88007c0dfd30
> [ 399.367004] Call Trace:
> [ 399.367004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 399.367004] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
> [ 399.367004] [<ffffffff8133930a>] ? __delay+0xa/0x10
> [ 399.367004] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
> [ 399.367004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 399.367004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 399.367004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 399.367004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 399.367004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 399.367004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 399.367004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 399.367004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 399.367004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 399.367004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 421.184014] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1265617 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
> [ 421.186171] rcu-torture: Reader Pipe: 9599676445 14768 0 0 0 0 0 0 0 0 0
> [ 421.187032] rcu-torture: Reader Batch: 9284228402 315462811 0 0 0 0 0 0 0 0 0
> [ 421.187925] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
> [ 421.189059] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
> [ 421.189684] rcu_preempt: wait state: 3 ->state: 0x1
> [ 421.190180] rcu_sched: wait state: 1 ->state: 0x1
> [ 421.190646] rcu_bh: wait state: 1 ->state: 0x1
> [ 421.191099] Dumping ftrace buffer:
> [ 421.191446] (ftrace buffer empty)
> [ 316.386056] BUG: spinlock lockup suspected on CPU#12, rcu_torture_rea/786
> [ 316.386056] lock: 0xffff88007fa2cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11
> [ 316.386056] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] ffff88007fa2cc00 ffff88007c0dfd10 ffffffff8132cd6c ffff88007cafcb00
> [ 316.386056] ffff88007c0dfd30 ffffffff81092fb3 ffff88007fa2cc00 00000000cfc06af0
> [ 316.386056] ffff88007c0dfd60 ffffffff810930db 0000000000000286 ffff88007fa2cc00
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
> [ 316.386056] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
> [ 316.386056] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
> [ 316.386056] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 316.386056] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 316.386056] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 316.386056] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 316.386056] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Sending NMI to all CPUs:
> [ 316.386056] NMI backtrace for cpu 0
> [ 316.386056] CPU: 0 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007c918c80 ti: ffff88007c5b8000 task.ti: ffff88007c5b8000
> [ 316.386056] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
> [ 316.386056] RSP: 0018:ffff88007c5bbdb0 EFLAGS: 00000286
> [ 316.386056] RAX: 0000000080000000 RBX: 0000016f89221cb2 RCX: 0000000000000001
> [ 316.386056] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
> [ 316.386056] RBP: ffff88007c5bbdd0 R08: ffff88007c5b8000 R09: ffff88007fa0cc00
> [ 316.386056] R10: ffff88007c5bbe30 R11: 0000000000000001 R12: 0000016f88f5821e
> [ 316.386056] R13: 000000000034e556 R14: 0000000000000000 R15: ffffffff820d6fd0
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0
> [ 316.386056] Stack:
> [ 316.386056] 000000000000000a ffff88007c5bbe20 00000069b5d0f6e7 000000000000127b
> [ 316.386056] ffff88007c5bbde0 ffffffff81339337 ffff88007c5bbe00 ffffffff810add86
> [ 316.386056] 0000000000000000 0000000000000000 ffff88007c5bbea8 ffffffff810ad458
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 316.386056] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 316.386056] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
> [ 316.386056] NMI backtrace for cpu 2
> [ 316.386056] CPU: 2 PID: 794 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007cafd780 ti: ffff88007c744000 task.ti: ffff88007c744000
> [ 316.386056] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
> [ 316.386056] RSP: 0018:ffff88007c747db0 EFLAGS: 00000286
> [ 316.386056] RAX: 0000000080000000 RBX: 0000016f8922659a RCX: 0000000000000001
> [ 316.386056] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
> [ 316.386056] RBP: ffff88007c747dd0 R08: ffff88007c744000 R09: ffff88007fa4cc00
> [ 316.386056] R10: ffff88007c747e30 R11: 000000000000003c R12: 0000016f890566fe
> [ 316.386056] R13: 0000000000351c70 R14: 0000000000000002 R15: ffffffff820d6fd0
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] 0000000000000010 ffff88007c747e20 00000069b889daa7 000000000000127b
> [ 316.386056] ffff88007c747de0 ffffffff81339337 ffff88007c747e00 ffffffff810add86
> [ 316.386056] 0000000000000000 0000000000000000 ffff88007c747ea8 ffffffff810ad458
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 316.386056] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 316.386056] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
> [ 316.386056] NMI backtrace for cpu 3
> [ 316.386056] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000
> [ 316.386056] RIP: 0010:[<ffffffff81348009>] [<ffffffff81348009>] check_preemption_disabled+0x29/0xe0
> [ 316.386056] RSP: 0018:ffff88007c5bfce0 EFLAGS: 00000002
> [ 316.386056] RAX: 0000000000000003 RBX: ffff88007fb6cc00 RCX: 0000000000000002
> [ 316.386056] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 316.386056] RBP: ffff88007c5bfce0 R08: ffffffff81a0a240 R09: ffff88007fb6cc00
> [ 316.386056] R10: ffff88007c5bfe30 R11: 0000000000000400 R12: 00000000cb524812
> [ 316.386056] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c5bfdd0
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] ffff88007c5bfcf0 ffffffff813480d7 ffff88007c5bfd20 ffffffff8133944d
> [ 316.386056] ffff88007fb6cc00 00000000cb524812 0000000000000001 00000000cfc06af0
> [ 316.386056] ffff88007c5bfd30 ffffffff8133930a ffff88007c5bfd60 ffffffff810930c7
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff813480d7>] debug_smp_processor_id+0x17/0x20
> [ 316.386056] [<ffffffff8133944d>] delay_tsc+0x1d/0xc0
> [ 316.386056] [<ffffffff8133930a>] __delay+0xa/0x10
> [ 316.386056] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 316.386056] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 316.386056] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 316.386056] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 316.386056] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 316.386056] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: 00 00 55 65 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff 7f 74 0b 89 d8 5b 41 5c 41 5d 41 5e <5d> c3 9c 58 f6 c4 02 74 ee 89 d8 83 e0 3f 48 8d 14 c5 08 92 a0
> [ 316.386056] NMI backtrace for cpu 5
> [ 316.386056] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000
> [ 316.386056] RIP: 0010:[<ffffffff810cd5c6>] [<ffffffff810cd5c6>] smp_call_function_single+0x106/0x140
> [ 316.386056] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202
> [ 316.386056] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000
> [ 316.386056] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7
> [ 316.386056] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002
> [ 316.386056] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980
> [ 316.386056] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] 0000000000000000 0000000000000000 0000000000000000 0000000000000003
> [ 316.386056] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0
> [ 316.386056] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff810aedbe>] sync_rcu_exp_select_cpus+0x1be/0x3d0
> [ 316.386056] [<ffffffff810af980>] ? rcu_seq_end.part.52+0x30/0x30
> [ 316.386056] [<ffffffff810afb9f>] synchronize_rcu_expedited.part.65+0x5f/0xb0
> [ 316.386056] [<ffffffff810afc06>] synchronize_rcu_expedited+0x16/0x40
> [ 316.386056] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 316.386056] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
> [ 316.386056] [<ffffffff81339366>] ? __udelay+0x26/0x30
> [ 316.386056] [<ffffffff810ac5a1>] rcu_torture_writer+0x441/0x6b0
> [ 316.386056] [<ffffffff810ac160>] ? rcu_torture_fakewriter+0x160/0x160
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 8b 46 18 <a8> 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5 fd ff ff
> [ 316.386056] NMI backtrace for cpu 7
> [ 316.386056] CPU: 7 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007c91d780 ti: ffff88007c750000 task.ti: ffff88007c750000
> [ 316.386056] RIP: 0010:[<ffffffff810ad377>] [<ffffffff810ad377>] rcu_torture_reader+0xc7/0x2e0
> [ 316.386056] RSP: 0018:ffff88007c753e10 EFLAGS: 00000206
> [ 316.386056] RAX: ffffffff81e47800 RBX: ffffffffffffffff RCX: 00000000000493e0
> [ 316.386056] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81d29759
> [ 316.386056] RBP: ffff88007c753ea8 R08: ffff88007c750000 R09: ffff88007faecc00
> [ 316.386056] R10: ffff88007c753e30 R11: 0000000000000001 R12: 0000000000000000
> [ 316.386056] R13: 00000069ba9b6ec1 R14: 000000000000127b R15: ffffffff820d6fd0
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] 0000000000000000 0000000081a0a240 33f80be8f7164cb6 00000000000003e0
> [ 316.386056] 0000000000000000 ffff88007faed1b8 00000001000258ae ffffffff810ad590
> [ 316.386056] 0000000000000000 ffffffff00000007 00000000ffffffff 0000000000000000
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: 8f 32 01 00 00 48 c7 c7 59 97 d2 81 4c 29 f3 e8 80 ad 29 00 48 8b 05 69 8a 02 01 48 c7 c7 59 97 d2 81 65 4a ff 04 e5 40 cb 00 00 <48> 83 78 30 01 48 83 db ff e8 5b ad 29 00 48 83 fb 0a b8 0a 00
> [ 316.386056] NMI backtrace for cpu 8
> [ 316.386056] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000
> [ 316.386056] RIP: 0010:[<ffffffff81339455>] [<ffffffff81339455>] delay_tsc+0x25/0xc0
> [ 316.386056] RSP: 0018:ffff88007fb03d78 EFLAGS: 00000006
> [ 316.386056] RAX: 000000008923865a RBX: ffff88007fb6cc00 RCX: 0000000000000103
> [ 316.386056] RDX: 000000000000016f RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 316.386056] RBP: ffff88007fb03d98 R08: 0000000000000000 R09: 000000000000f9ad
> [ 316.386056] R10: 000000003d550944 R11: 0000000002faf04c R12: 00000000c6d627e6
> [ 316.386056] R13: 0000000000000001 R14: 0000000000000008 R15: 0000000000000000
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] ffff88007fb6cc00 00000000c6d627e6 0000000000000001 00000000cfc06af0
> [ 316.386056] ffff88007fb03da8 ffffffff8133930a ffff88007fb03dd8 ffffffff810930c7
> [ 316.386056] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000
> [ 316.386056] Call Trace:
> [ 316.386056] <IRQ> \x01d [<ffffffff8133930a>] __delay+0xa/0x10
> [ 316.386056] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 316.386056] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 316.386056] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 316.386056] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 316.386056] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 316.386056] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 316.386056] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 316.386056] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 316.386056] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 316.386056] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 316.386056] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 316.386056] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 316.386056] <EOI> \x01d [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 316.386056] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 316.386056] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 <48> c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43
> [ 316.386056] NMI backtrace for cpu 11
> [ 316.386056] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
> [ 316.386056] RIP: 0010:[<ffffffff810780be>] [<ffffffff810780be>] preempt_count_add+0xe/0xc0
> [ 316.386056] RSP: 0018:ffff88007fb63e30 EFLAGS: 00000086
> [ 316.386056] RAX: 0000000000000001 RBX: ffff88007fb6cc00 RCX: 0000000000000103
> [ 316.386056] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: 0000000000000001
> [ 316.386056] RBP: ffff88007fb63e60 R08: ffff88007fb6e140 R09: 0000000000000010
> [ 316.386056] R10: 0000000000000226 R11: 000000000000001f R12: 00000000cf0bff9b
> [ 316.386056] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] ffff88007fb63e60 ffffffff81339448 ffff88007fb6cc00 00000000cf0bff9b
> [ 316.386056] 0000000000000001 00000000cfc06af0 ffff88007fb63e70 ffffffff8133930a
> [ 316.386056] ffff88007fb63ea0 ffffffff810930c7 ffff88007fb6cc00 ffffffff81e080c8
> [ 316.386056] Call Trace:
> [ 316.386056] <IRQ> \x01d [<ffffffff81339448>] ? delay_tsc+0x18/0xc0
> [ 316.386056] [<ffffffff8133930a>] __delay+0xa/0x10
> [ 316.386056] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 316.386056] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 316.386056] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 316.386056] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 316.386056] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 316.386056] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 316.386056] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 316.386056] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 316.386056] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 316.386056] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 316.386056] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 316.386056] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 316.386056] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 316.386056] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 316.386056] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
> [ 316.386056] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 316.386056] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 316.386056] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 316.386056] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 316.386056] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 316.386056] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 316.386056] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 316.386056] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 316.386056] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 316.386056] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 316.386056] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 316.386056] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 316.386056] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 316.386056] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 316.386056] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 316.386056] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 316.386056] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 316.386056] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: c7 c7 fb dd c9 81 e8 72 f1 fd ff c6 05 a0 b3 e9 00 01 eb 9a 66 0f 1f 84 00 00 00 00 00 8b 15 02 a7 01 01 55 65 01 3d d2 2c f9 7e <48> 89 e5 53 89 fb 85 d2 75 11 65 8b 05 c1 2c f9 7e 0f b6 c0 3d
> [ 316.386056] NMI backtrace for cpu 12
> [ 316.386056] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000
> [ 316.386056] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
> [ 316.386056] RSP: 0018:ffff88007c0dfc90 EFLAGS: 00000046
> [ 316.386056] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000c
> [ 316.386056] RDX: 000000000000000c RSI: 0000000000000010 RDI: 0000000000000300
> [ 316.386056] RBP: ffff88007c0dfcc8 R08: 0000000000000000 R09: 000000000000f9ad
> [ 316.386056] R10: ffff88007c0dff58 R11: 00000000000005d1 R12: ffffffff81f31740
> [ 316.386056] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000c
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] 0000000000000086 0000000c7c0dfca0 000000000000ff40 0000000000000001
> [ 316.386056] ffffffff8103fd20 00000000cfc06af0 ffff88007c0dfdd0 ffff88007c0dfcd8
> [ 316.386056] ffffffff8103fd36 ffff88007c0dfd20 ffffffff81331299 ffffffff81008b50
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
> [ 316.386056] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
> [ 316.386056] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
> [ 316.386056] [<ffffffff81008b50>] ? show_stack+0x20/0x50
> [ 316.386056] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
> [ 316.386056] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
> [ 316.386056] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 316.386056] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 316.386056] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 316.386056] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 316.386056] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
> [ 316.386056] NMI backtrace for cpu 13
> [ 316.386056] CPU: 13 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000
> [ 316.386056] RIP: 0010:[<ffffffff810addac>] [<ffffffff810addac>] rcu_read_delay+0x5c/0xb0
> [ 316.386056] RSP: 0018:ffff88007c0f7df0 EFLAGS: 00000202
> [ 316.386056] RAX: 000000000008efd6 RBX: 0000000000000000 RCX: 0000000000001770
> [ 316.386056] RDX: 000000000000032c RSI: ffff88007fbb27d8 RDI: ffff88007c0f7e20
> [ 316.386056] RBP: ffff88007c0f7e00 R08: ffff88007c0f4000 R09: ffff88007fbacc00
> [ 316.386056] R10: ffff88007c0f7e30 R11: 0000000000000001 R12: ffff88007c0f7e20
> [ 316.386056] R13: 00000069ba9c967b R14: 000000000000127b R15: ffffffff820d6fd0
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] 0000000000000000 0000000000000000 ffff88007c0f7ea8 ffffffff810ad458
> [ 316.386056] 0000000000000000 0000000081a0a240 8723d0f72accd175 0000000000000c44
> [ 316.386056] 0000000000000000 ffff88007fbad1b8 00000001000258ae ffffffff810ad590
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: e8 8a b5 28 00 48 83 eb 01 75 f0 4c 89 e7 e8 6c 83 07 00 48 63 15 d9 94 02 01 48 8d 14 92 48 8d 0c 92 31 d2 48 c1 e1 04 48 f7 f1 <48> 85 d2 74 3c 65 8b 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41
> [ 316.386056] NMI backtrace for cpu 14
> [ 316.386056] CPU: 14 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000
> [ 316.386056] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
> [ 316.386056] RSP: 0018:ffff88007cb2bdb0 EFLAGS: 00000286
> [ 316.386056] RAX: 0000000080000000 RBX: 0000016f89278228 RCX: 0000000000000001
> [ 316.386056] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
> [ 316.386056] RBP: ffff88007cb2bdd0 R08: ffff88007cb28000 R09: ffff88007fbccc00
> [ 316.386056] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000016f88f62d58
> [ 316.386056] R13: 0000000000352ddb R14: 000000000000000e R15: ffffffff820d6fd0
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] 0000000000000005 ffff88007cb2be20 00000069b54181d9 000000000000127b
> [ 316.386056] ffff88007cb2bde0 ffffffff81339337 ffff88007cb2be00 ffffffff810add86
> [ 316.386056] 0000000000000000 0000000000000000 ffff88007cb2bea8 ffffffff810ad458
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 316.386056] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 316.386056] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 316.386056] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.386056] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.386056] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.386056] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.386056] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
> [ 316.386056] NMI backtrace for cpu 15
> [ 316.386056] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14
> [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.386056] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000
> [ 316.386056] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
> [ 316.386056] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202
> [ 316.386056] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000
> [ 316.386056] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 316.386056] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000
> [ 316.386056] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000
> [ 316.386056] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000
> [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
> [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.386056] Stack:
> [ 316.386056] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa
> [ 316.386056] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7
> [ 316.386056] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000
> [ 316.386056] Call Trace:
> [ 316.386056] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
> [ 316.386056] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
> [ 316.386056] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
> [ 316.386056] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
> [ 316.386056] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
> [ 331.295005] BUG: spinlock lockup suspected on CPU#11, torture_onoff/798
> [ 331.295005] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11
> [ 331.295005] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] ffff88007fb6cc00 ffff88007fb63e50 ffffffff8132cd6c ffff88007cafcb00
> [ 331.295005] ffff88007fb63e70 ffffffff81092fb3 ffff88007fb6cc00 00000000cfc06af0
> [ 331.295005] ffff88007fb63ea0 ffffffff810930db ffff88007fb6cc00 ffffffff81e080c8
> [ 331.295005] Call Trace:
> [ 331.295005] <IRQ> [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
> [ 331.295005] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
> [ 331.295005] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
> [ 331.295005] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 331.295005] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 331.295005] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 331.295005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 331.295005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 331.295005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 331.295005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 331.295005] <EOI> [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 331.295005] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 331.295005] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 331.295005] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 331.295005] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 331.295005] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 331.295005] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
> [ 331.295005] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 331.295005] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 331.295005] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 331.295005] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 331.295005] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 331.295005] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 331.295005] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 331.295005] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 331.295005] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 331.295005] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 331.295005] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 331.295005] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 331.295005] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 331.295005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 331.295005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 331.295005] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 331.295005] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 331.295005] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Sending NMI to all CPUs:
> [ 331.295005] NMI backtrace for cpu 0
> [ 331.295005] CPU: 0 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007c91b200 ti: ffff88007cb2c000 task.ti: ffff88007cb2c000
> [ 331.295005] RIP: 0010:[<ffffffff81077f65>] [<ffffffff81077f65>] preempt_count_sub+0x15/0xa0
> [ 331.295005] RSP: 0018:ffff88007cb2fe00 EFLAGS: 00000246
> [ 331.295005] RAX: 000000000000000a RBX: 0000000000000000 RCX: 0000000000000000
> [ 331.295005] RDX: 0000000080000001 RSI: ffffffff81d29759 RDI: 0000000000000001
> [ 331.295005] RBP: ffff88007cb2fe00 R08: ffff88007cb2c000 R09: ffff88007fa0cc00
> [ 331.295005] R10: ffff88007cb2fe30 R11: 0000000000000001 R12: 0000000000000000
> [ 331.295005] R13: 00000069dd5e61b2 R14: 000000000000127b R15: ffffffff820d6fd0
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0
> [ 331.295005] Stack:
> [ 331.295005] ffff88007cb2fea8 ffffffff810ad3a5 0000000000000000 0000000081a0a240
> [ 331.295005] 3c3b1143cab6927b 0000000000001d6d 0000000000000000 ffff88007fa0d3f8
> [ 331.295005] 0000000100025af6 ffffffff810ad590 0000000000000000 ffffffff00000000
> [ 331.295005] Call Trace:
> [ 331.295005] [<ffffffff810ad3a5>] rcu_torture_reader+0xf5/0x2e0
> [ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: 08 b8 ea ff ff ff 5b 5d c3 48 83 c4 08 31 c0 5b 5d c3 0f 1f 40 00 8b 0d 62 a8 01 01 55 48 89 e5 85 c9 75 1b 65 8b 15 2b 2e f9 7e <89> d1 81 e1 ff ff ff 7f 39 cf 7f 13 81 ff fe 00 00 00 76 3f f7
> [ 331.295005] NMI backtrace for cpu 2
> [ 331.295005] CPU: 2 PID: 794 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007cafd780 ti: ffff88007c744000 task.ti: ffff88007c744000
> [ 331.295005] RIP: 0010:[<ffffffff810add72>] [<ffffffff810add72>] rcu_read_delay+0x22/0xb0
> [ 331.295005] RSP: 0018:ffff88007c747df0 EFLAGS: 00000246
> [ 331.295005] RAX: 0000000000000773 RBX: 0000000000000000 RCX: 000000000016e360
> [ 331.295005] RDX: 0000000000044071 RSI: ffff88007fa527d8 RDI: ffff88007c747e20
> [ 331.295005] RBP: ffff88007c747e00 R08: ffff88007c744000 R09: ffff88007fa4cc00
> [ 331.295005] R10: ffff88007c747e30 R11: 000000000000003c R12: ffff88007c747e20
> [ 331.295005] R13: 00000069dd5e7519 R14: 000000000000127b R15: ffffffff820d6fd0
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] 0000000000000000 0000000000000000 ffff88007c747ea8 ffffffff810ad458
> [ 331.295005] 0000000000000000 000000007fa15380 d57caa470491aa84 0000000000001e98
> [ 331.295005] 0000000000000000 ffff88007fa4d3f8 0000000100025af6 ffffffff810ad590
> [ 331.295005] Call Trace:
> [ 331.295005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: ff ff 5d c3 0f 1f 44 00 00 55 48 89 e5 41 54 53 49 89 fc e8 a1 83 07 00 48 63 0d 0e 95 02 01 31 d2 48 69 c9 a0 86 01 00 48 f7 f1 <48> 85 d2 75 15 bb 32 00 00 00 bf 58 89 41 00 e8 8a b5 28 00 48
> [ 331.295005] NMI backtrace for cpu 3
> [ 331.295005] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000
> [ 331.295005] RIP: 0010:[<ffffffff81347fe0>] [<ffffffff81347fe0>] check_preemption_disabled+0x0/0xe0
> [ 331.295005] RSP: 0018:ffff88007c5bfce8 EFLAGS: 00000097
> [ 331.295005] RAX: 0000000000000002 RBX: ffff88007fb6cc00 RCX: 0000000000000002
> [ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 331.295005] RBP: ffff88007c5bfcf0 R08: ffffffff81a0a240 R09: ffff88007fb6cc00
> [ 331.295005] R10: ffff88007c5bfe30 R11: 0000000000000400 R12: 00000000cc13eda5
> [ 331.295005] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c5bfdd0
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] ffffffff813480d7 ffff88007c5bfd20 ffffffff8133944d ffff88007fb6cc00
> [ 331.295005] 00000000cc13eda5 0000000000000001 00000000cfc06af0 ffff88007c5bfd30
> [ 331.295005] ffffffff8133930a ffff88007c5bfd60 ffffffff810930c7 0000000000000286
> [ 331.295005] Call Trace:
> [ 331.295005] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 331.295005] [<ffffffff8133944d>] delay_tsc+0x1d/0xc0
> [ 331.295005] [<ffffffff8133930a>] __delay+0xa/0x10
> [ 331.295005] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 331.295005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 331.295005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 331.295005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 331.295005] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 331.295005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: 00 00 00 00 49 89 f7 c7 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 <55> 65 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 41 54 53 65 8b 1d
> [ 331.295005] NMI backtrace for cpu 5
> [ 331.295005] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000
> [ 331.295005] RIP: 0010:[<ffffffff810cd5c3>] [<ffffffff810cd5c3>] smp_call_function_single+0x103/0x140
> [ 331.295005] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202
> [ 331.295005] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000
> [ 331.295005] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7
> [ 331.295005] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002
> [ 331.295005] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980
> [ 331.295005] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] 0000000000000000 0000000000000000 0000000000000000 0000000000000003
> [ 331.295005] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0
> [ 331.295005] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009
> [ 331.295005] Call Trace:
> [ 331.295005] [<ffffffff810aedbe>] sync_rcu_exp_select_cpus+0x1be/0x3d0
> [ 331.295005] [<ffffffff810af980>] ? rcu_seq_end.part.52+0x30/0x30
> [ 331.295005] [<ffffffff810afb9f>] synchronize_rcu_expedited.part.65+0x5f/0xb0
> [ 331.295005] [<ffffffff810afc06>] synchronize_rcu_expedited+0x16/0x40
> [ 331.295005] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 331.295005] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
> [ 331.295005] [<ffffffff81339366>] ? __udelay+0x26/0x30
> [ 331.295005] [<ffffffff810ac5a1>] rcu_torture_writer+0x441/0x6b0
> [ 331.295005] [<ffffffff810ac160>] ? rcu_torture_fakewriter+0x160/0x160
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: c6 05 f9 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 <8b> 46 18 a8 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5
> [ 331.295005] NMI backtrace for cpu 7
> [ 331.295005] CPU: 7 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007c91d780 ti: ffff88007c750000 task.ti: ffff88007c750000
> [ 331.295005] RIP: 0010:[<ffffffff81347fe8>] [<ffffffff81347fe8>] check_preemption_disabled+0x8/0xe0
> [ 331.295005] RSP: 0018:ffff88007c753d90 EFLAGS: 00000246
> [ 331.295005] RAX: 0000000080000001 RBX: 0000017001a4f518 RCX: 0000000000000001
> [ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 331.295005] RBP: ffff88007c753da0 R08: ffff88007c750000 R09: ffff88007faecc00
> [ 331.295005] R10: ffff88007c753e30 R11: 0000000000000001 R12: 00000170019e5d88
> [ 331.295005] R13: 0000000000352fc5 R14: 0000000000000007 R15: ffffffff820d6fd0
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] ffff88007c753da0 ffffffff813480d7 ffff88007c753dd0 ffffffff81339472
> [ 331.295005] 000000000000000c ffff88007c753e20 00000069db15b06d 000000000000127b
> [ 331.295005] ffff88007c753de0 ffffffff81339337 ffff88007c753e00 ffffffff810add86
> [ 331.295005] Call Trace:
> [ 331.295005] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 331.295005] [<ffffffff81339472>] delay_tsc+0x42/0xc0
> [ 331.295005] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 331.295005] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 331.295005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 65 8b 05 a8 2d cc 7e <48> 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff
> [ 331.295005] NMI backtrace for cpu 8
> [ 331.295005] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000
> [ 331.295005] RIP: 0010:[<ffffffff810930b9>] [<ffffffff810930b9>] do_raw_spin_lock+0x79/0x150
> [ 331.295005] RSP: 0018:ffff88007fb03db8 EFLAGS: 00000002
> [ 331.295005] RAX: 0000000000000001 RBX: ffff88007fb6cc00 RCX: 0000000000000103
> [ 331.295005] RDX: 0000000080000103 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
> [ 331.295005] RBP: ffff88007fb03dd8 R08: 0000000000000000 R09: 000000000000f9ad
> [ 331.295005] R10: 000000003d550944 R11: 0000000002faf04c R12: 00000000c7b4e675
> [ 331.295005] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000
> [ 331.295005] ffff88007fb03df0 ffffffff818b3fda 000000000000000b ffff88007fb03e30
> [ 331.295005] ffffffff810b96b6 0000000000000286 ffffffff81e4e828 000000fc640b0d4c
> [ 331.295005] Call Trace:
> [ 331.295005] <IRQ> \x01d [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 331.295005] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 331.295005] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 331.295005] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 331.295005] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 331.295005] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 331.295005] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 331.295005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 331.295005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 331.295005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 331.295005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 331.295005] <EOI> \x01d [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 331.295005] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 331.295005] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: c0 74 67 4c 69 35 b4 0f d8 00 e8 03 00 00 45 31 e4 41 bd 01 00 00 00 4d 85 f6 74 22 8b 03 85 c0 75 09 f0 44 0f b1 2b 85 c0 74 3f <bf> 01 00 00 00 49 83 c4 01 e8 39 62 2a 00 4d 39 e6 75 de 48 c7
> [ 331.295005] NMI backtrace for cpu 11
> [ 331.295005] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
> [ 331.295005] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
> [ 331.295005] RSP: 0018:ffff88007fb63dd0 EFLAGS: 00000046
> [ 331.295005] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000b
> [ 331.295005] RDX: 000000000000000b RSI: 0000000000000010 RDI: 0000000000000300
> [ 331.295005] RBP: ffff88007fb63e08 R08: 0000000000000000 R09: 000000000000f9ad
> [ 331.295005] R10: ffff88007c6f7f58 R11: 0000000000000773 R12: ffffffff81f31740
> [ 331.295005] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000b
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] 0000000000000082 0000000b7fb63de0 000000000000ff40 0000000000000001
> [ 331.295005] ffffffff8103fd20 00000000cfc06af0 0000000000000000 ffff88007fb63e18
> [ 331.295005] ffffffff8103fd36 ffff88007fb63e60 ffffffff81331299 ffffffff81008b50
> [ 331.295005] Call Trace:
> [ 331.295005] <IRQ> \x01d [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
> [ 331.295005] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
> [ 331.295005] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
> [ 331.295005] [<ffffffff81008b50>] ? show_stack+0x20/0x50
> [ 331.295005] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
> [ 331.295005] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
> [ 331.295005] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 331.295005] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 331.295005] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 331.295005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 331.295005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 331.295005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 331.295005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 331.295005] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 331.295005] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 331.295005] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 331.295005] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 331.295005] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 331.295005] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 331.295005] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
> [ 331.295005] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 331.295005] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 331.295005] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 331.295005] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 331.295005] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 331.295005] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 331.295005] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 331.295005] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 331.295005] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 331.295005] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 331.295005] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 331.295005] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 331.295005] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 331.295005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 331.295005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 331.295005] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 331.295005] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 331.295005] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
> [ 331.295005] NMI backtrace for cpu 12
> [ 331.295005] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000
> [ 331.295005] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
> [ 331.295005] RSP: 0018:ffff88007c0dfd18 EFLAGS: 00000002
> [ 331.295005] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
> [ 331.295005] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
> [ 331.295005] RBP: ffff88007c0dfd30 R08: 000000000000062f R09: 0000000000000743
> [ 331.295005] R10: ffff88007c0dff58 R11: 0000000000000743 R12: 00000000cfc06af0
> [ 331.295005] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c0dfdd0
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] ffff88007fa2cc00 00000000cfc06af0 0000000000000001 ffff88007c0dfd60
> [ 331.295005] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
> [ 331.295005] 000000000000cc00 ffff88007c0dfd80 ffffffff818b401f 0000000000000001
> [ 331.295005] Call Trace:
> [ 331.295005] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 331.295005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 331.295005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 331.295005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 331.295005] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 331.295005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
> [ 331.295005] NMI backtrace for cpu 13
> [ 331.295005] CPU: 13 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000
> [ 331.295005] RIP: 0010:[<ffffffff810780be>] [<ffffffff810780be>] preempt_count_add+0xe/0xc0
> [ 331.295005] RSP: 0018:ffff88007c0f7da0 EFLAGS: 00000282
> [ 331.295005] RAX: 0000000080000000 RBX: 0000017001aa6260 RCX: 0000000000000001
> [ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: 0000000000000001
> [ 331.295005] RBP: ffff88007c0f7dd0 R08: ffff88007c0f4000 R09: ffff88007fbacc00
> [ 331.295005] R10: ffff88007c0f7e30 R11: 0000000000000001 R12: 0000017001a4d5c0
> [ 331.295005] R13: 00000000000aa2c1 R14: 000000000000000d R15: ffffffff820d6fd0
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] ffff88007c0f7dd0 ffffffff8133946d 0000000000000000 ffff88007c0f7e20
> [ 331.295005] 00000069dd5ea44f 000000000000127b ffff88007c0f7de0 ffffffff81339337
> [ 331.295005] ffff88007c0f7e00 ffffffff810addf7 0000000000000000 0000000000000000
> [ 331.295005] Call Trace:
> [ 331.295005] [<ffffffff8133946d>] ? delay_tsc+0x3d/0xc0
> [ 331.295005] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 331.295005] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
> [ 331.295005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: c7 c7 fb dd c9 81 e8 72 f1 fd ff c6 05 a0 b3 e9 00 01 eb 9a 66 0f 1f 84 00 00 00 00 00 8b 15 02 a7 01 01 55 65 01 3d d2 2c f9 7e <48> 89 e5 53 89 fb 85 d2 75 11 65 8b 05 c1 2c f9 7e 0f b6 c0 3d
> [ 331.295005] NMI backtrace for cpu 14
> [ 331.295005] CPU: 14 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000
> [ 331.295005] RIP: 0010:[<ffffffff81077f83>] [<ffffffff81077f83>] preempt_count_sub+0x33/0xa0
> [ 331.295005] RSP: 0018:ffff88007cb2be08 EFLAGS: 00000297
> [ 331.295005] RAX: 000000000000000a RBX: 0000000000000000 RCX: 0000000000000001
> [ 331.295005] RDX: 0000000080000001 RSI: ffffffff81d29759 RDI: 00000000ffffffff
> [ 331.295005] RBP: ffff88007cb2bea8 R08: ffff88007cb28000 R09: ffff88007fbccc00
> [ 331.295005] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000000000000000
> [ 331.295005] R13: 00000069dd60520e R14: 000000000000127b R15: ffffffff820d6fd0
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] ffffffff810ad3a5 0000000000000000 0000000000015380 9abda0ee3aa4a492
> [ 331.295005] 0000000000001b28 0000000000000000 ffff88007fbcd3f8 0000000100025af6
> [ 331.295005] ffffffff810ad590 0000000000000000 ffffffff0000000e 00000000ffffffff
> [ 331.295005] Call Trace:
> [ 331.295005] [<ffffffff810ad3a5>] ? rcu_torture_reader+0xf5/0x2e0
> [ 331.295005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 331.295005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 331.295005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 331.295005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 331.295005] Code: 89 e5 85 c9 75 1b 65 8b 15 2b 2e f9 7e 89 d1 81 e1 ff ff ff 7f 39 cf 7f 13 81 ff fe 00 00 00 76 3f f7 df 65 01 3d 0e 2e f9 7e 5d <c3> e8 b7 34 2c 00 85 c0 74 f5 8b 15 0d 09 0a 01 85 d2 75 eb 48
> [ 331.295005] NMI backtrace for cpu 15
> [ 331.295005] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14
> [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 331.295005] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000
> [ 331.295005] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
> [ 331.295005] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202
> [ 331.295005] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000
> [ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 331.295005] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000
> [ 331.295005] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000
> [ 331.295005] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000
> [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
> [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 331.295005] Stack:
> [ 331.295005] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa
> [ 331.295005] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7
> [ 331.295005] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000
> [ 331.295005] Call Trace:
> [ 331.295005] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
> [ 331.295005] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
> [ 331.295005] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
> [ 331.295005] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
> [ 331.295005] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
> [ 316.338053] BUG: spinlock lockup suspected on CPU#3, rcu_torture_rea/782
> [ 316.338053] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11
> [ 316.338053] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] ffff88007fb6cc00 ffff88007c5bfd10 ffffffff8132cd6c ffff88007cafcb00
> [ 316.338053] ffff88007c5bfd30 ffffffff81092fb3 ffff88007fb6cc00 00000000cfc06af0
> [ 316.338053] ffff88007c5bfd60 ffffffff810930db 0000000000000286 ffff88007fb6cc00
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
> [ 316.338053] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
> [ 316.338053] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
> [ 316.338053] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 316.338053] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 316.338053] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 316.338053] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 316.338053] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Sending NMI to all CPUs:
> [ 316.338053] NMI backtrace for cpu 0
> [ 316.338053] CPU: 0 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007c75be80 ti: ffff88007c774000 task.ti: ffff88007c774000
> [ 316.338053] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
> [ 316.338053] RSP: 0018:ffff88007c777df0 EFLAGS: 00000202
> [ 316.338053] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 316.338053] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb
> [ 316.338053] RBP: ffff88007c777e00 R08: ffff88007c774000 R09: ffff88007fa0cc00
> [ 316.338053] R10: ffff88007c777e30 R11: 000000000000005a R12: 0000000000000000
> [ 316.338053] R13: 0000006a519a813f R14: 000000000000127b R15: ffffffff820d6fd0
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0
> [ 316.338053] Stack:
> [ 316.338053] ffffffff81126479 0000000000000000 ffff88007c777ea8 ffffffff810ad3ce
> [ 316.338053] 0000000000000000 0000000081a0a240 44bdc3e2f3607f45 0000000000001066
> [ 316.338053] dead000000000200 0000000000000000 0000000100026293 ffffffff810ad590
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
> [ 316.338053] NMI backtrace for cpu 2
> [ 316.338053] CPU: 2 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000
> [ 316.338053] RIP: 0010:[<ffffffff81126474>] [<ffffffff81126474>] stutter_wait+0x44/0xc0
> [ 316.338053] RSP: 0018:ffff88007c0f7df8 EFLAGS: 00000202
> [ 316.338053] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
> [ 316.338053] RBP: ffff88007c0f7e00 R08: ffff88007c0f4000 R09: ffff88007fa4cc00
> [ 316.338053] R10: ffff88007c0f7e30 R11: 000000000000005a R12: 0000000000000000
> [ 316.338053] R13: 0000006a51d7a937 R14: 000000000000127b R15: ffffffff820d6fd0
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] 0000000000000000 ffff88007c0f7ea8 ffffffff810ad3ce 0000000000000000
> [ 316.338053] 0000000081a0a240 e1c9c2832fdf50b8 00000000000010f6 dead000000000200
> [ 316.338053] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: 75 12 48 8b 05 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 <e8> c7 94 78 00 8b 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff
> [ 316.338053] NMI backtrace for cpu 3
> [ 316.338053] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000
> [ 316.338053] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
> [ 316.338053] RSP: 0018:ffff88007c5bfc90 EFLAGS: 00000046
> [ 316.338053] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000003
> [ 316.338053] RDX: 0000000000000003 RSI: 0000000000000010 RDI: 0000000000000300
> [ 316.338053] RBP: ffff88007c5bfcc8 R08: 0000000000000000 R09: 000000000000f9ad
> [ 316.338053] R10: ffff88007c5bff58 R11: 00000000000008fa R12: ffffffff81f31740
> [ 316.338053] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000003
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] 0000000000000086 000000037c5bfca0 000000000000ff40 0000000000000001
> [ 316.338053] ffffffff8103fd20 00000000cfc06af0 ffff88007c5bfdd0 ffff88007c5bfcd8
> [ 316.338053] ffffffff8103fd36 ffff88007c5bfd20 ffffffff81331299 ffffffff81008b50
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
> [ 316.338053] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
> [ 316.338053] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
> [ 316.338053] [<ffffffff81008b50>] ? show_stack+0x20/0x50
> [ 316.338053] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
> [ 316.338053] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
> [ 316.338053] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 316.338053] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 316.338053] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 316.338053] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 316.338053] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
> [ 316.338053] NMI backtrace for cpu 5
> [ 316.338053] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000
> [ 316.338053] RIP: 0010:[<ffffffff810cd5c6>] [<ffffffff810cd5c6>] smp_call_function_single+0x106/0x140
> [ 316.338053] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202
> [ 316.338053] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000
> [ 316.338053] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7
> [ 316.338053] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002
> [ 316.338053] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980
> [ 316.338053] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] 0000000000000000 0000000000000000 0000000000000000 0000000000000003
> [ 316.338053] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0
> [ 316.338053] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff810aedbe>] sync_rcu_exp_select_cpus+0x1be/0x3d0
> [ 316.338053] [<ffffffff810af980>] ? rcu_seq_end.part.52+0x30/0x30
> [ 316.338053] [<ffffffff810afb9f>] synchronize_rcu_expedited.part.65+0x5f/0xb0
> [ 316.338053] [<ffffffff810afc06>] synchronize_rcu_expedited+0x16/0x40
> [ 316.338053] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 316.338053] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
> [ 316.338053] [<ffffffff81339366>] ? __udelay+0x26/0x30
> [ 316.338053] [<ffffffff810ac5a1>] rcu_torture_writer+0x441/0x6b0
> [ 316.338053] [<ffffffff810ac160>] ? rcu_torture_fakewriter+0x160/0x160
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 8b 46 18 <a8> 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5 fd ff ff
> [ 316.338053] NMI backtrace for cpu 7
> [ 316.338053] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000
> [ 316.338053] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
> [ 316.338053] RSP: 0018:ffff88007cb2bdf8 EFLAGS: 00000246
> [ 316.338053] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
> [ 316.338053] RBP: ffff88007cb2be00 R08: ffff88007cb28000 R09: ffff88007faecc00
> [ 316.338053] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000000000000000
> [ 316.338053] R13: 0000006a51d7a959 R14: 000000000000127b R15: ffffffff820d6fd0
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] 0000000000000000 ffff88007cb2bea8 ffffffff810ad3ce 0000000000000000
> [ 316.338053] 0000000000015380 938d1d05a9edd694 00000000000000f6 dead000000000200
> [ 316.338053] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
> [ 316.338053] NMI backtrace for cpu 8
> [ 316.338053] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000
> [ 316.338053] RIP: 0010:[<ffffffff81339455>] [<ffffffff81339455>] delay_tsc+0x25/0xc0
> [ 316.338053] RSP: 0018:ffff88007fb03d78 EFLAGS: 00000006
> [ 316.338053] RAX: 0000000032ed229e RBX: ffff88007fb6cc00 RCX: 0000000000000103
> [ 316.338053] RDX: 0000000000000172 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 316.338053] RBP: ffff88007fb03d98 R08: 0000000000000000 R09: 000000000000f9ad
> [ 316.338053] R10: 000000003d550944 R11: 0000000002faf04c R12: 00000000cb2cbf89
> [ 316.338053] R13: 0000000000000001 R14: 0000000000000008 R15: 0000000000000000
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] ffff88007fb6cc00 00000000cb2cbf89 0000000000000001 00000000cfc06af0
> [ 316.338053] ffff88007fb03da8 ffffffff8133930a ffff88007fb03dd8 ffffffff810930c7
> [ 316.338053] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000
> [ 316.338053] Call Trace:
> [ 316.338053] <IRQ> \x01d [<ffffffff8133930a>] __delay+0xa/0x10
> [ 316.338053] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 316.338053] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 316.338053] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 316.338053] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 316.338053] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 316.338053] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 316.338053] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 316.338053] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 316.338053] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 316.338053] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 316.338053] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 316.338053] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 316.338053] <EOI> \x01d [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 316.338053] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 <48> c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43
> [ 316.338053] NMI backtrace for cpu 11
> [ 316.338053] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
> [ 316.338053] RIP: 0010:[<ffffffff810920b1>] [<ffffffff810920b1>] queued_spin_lock_slowpath+0x171/0x1a0
> [ 316.338053] RSP: 0018:ffff88007fb63e58 EFLAGS: 00000002
> [ 316.338053] RAX: 0000000000000101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
> [ 316.338053] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
> [ 316.338053] RBP: ffff88007fb63e70 R08: 000000000000062f R09: 00000000000008e3
> [ 316.338053] R10: ffff88007c6f7f58 R11: 00000000000008e3 R12: 00000000cfc06af0
> [ 316.338053] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] ffff88007fb6cc00 00000000cfc06af0 0000000000000001 ffff88007fb63ea0
> [ 316.338053] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
> [ 316.338053] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
> [ 316.338053] Call Trace:
> [ 316.338053] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 316.338053] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 316.338053] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 316.338053] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 316.338053] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 316.338053] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 316.338053] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 316.338053] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 316.338053] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 316.338053] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 316.338053] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 316.338053] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 316.338053] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 316.338053] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 316.338053] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
> [ 316.338053] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 316.338053] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 316.338053] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 316.338053] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 316.338053] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 316.338053] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 316.338053] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 316.338053] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 316.338053] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 316.338053] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 316.338053] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 316.338053] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 316.338053] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 316.338053] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 316.338053] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 316.338053] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 316.338053] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 316.338053] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 8b 03 <84> c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 f3 90
> [ 316.338053] NMI backtrace for cpu 12
> [ 316.338053] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000
> [ 316.338053] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
> [ 316.338053] RSP: 0018:ffff88007c0dfd18 EFLAGS: 00000002
> [ 316.338053] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
> [ 316.338053] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
> [ 316.338053] RBP: ffff88007c0dfd30 R08: 000000000000062f R09: 0000000000000743
> [ 316.338053] R10: ffff88007c0dff58 R11: 0000000000000743 R12: 00000000cfc06af0
> [ 316.338053] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c0dfdd0
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] ffff88007fa2cc00 00000000cfc06af0 0000000000000001 ffff88007c0dfd60
> [ 316.338053] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
> [ 316.338053] 000000000000cc00 ffff88007c0dfd80 ffffffff818b401f 0000000000000001
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 316.338053] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 316.338053] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 316.338053] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 316.338053] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 316.338053] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
> [ 316.338053] NMI backtrace for cpu 13
> [ 316.338053] CPU: 13 PID: 793 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007caf8c80 ti: ffff88007c740000 task.ti: ffff88007c740000
> [ 316.338053] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
> [ 316.338053] RSP: 0018:ffff88007c743df8 EFLAGS: 00000246
> [ 316.338053] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
> [ 316.338053] RBP: ffff88007c743e00 R08: ffff88007c740000 R09: ffff88007fbacc00
> [ 316.338053] R10: ffff88007c743e30 R11: 0000000000000001 R12: 0000000000000000
> [ 316.338053] R13: 0000006a51d78b8c R14: 000000000000127b R15: ffffffff820d6fd0
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] 0000000000000000 ffff88007c743ea8 ffffffff810ad3ce 0000000000000000
> [ 316.338053] 0000000081a0a240 9db61e92c238bec5 00000000000000a4 dead000000000200
> [ 316.338053] 0000000000000000 0000000100026297 ffffffff810ad590 0000000000000000
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
> [ 316.338053] NMI backtrace for cpu 14
> [ 316.338053] CPU: 14 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007c918c80 ti: ffff88007c5b8000 task.ti: ffff88007c5b8000
> [ 316.338053] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
> [ 316.338053] RSP: 0018:ffff88007c5bbdf0 EFLAGS: 00000202
> [ 316.338053] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
> [ 316.338053] RBP: ffff88007c5bbe00 R08: ffff88007c5b8000 R09: ffff88007fbccc00
> [ 316.338053] R10: ffff88007c5bbe30 R11: 0000000000000001 R12: 0000000000000000
> [ 316.338053] R13: 0000006a51d78bd7 R14: 000000000000127b R15: ffffffff820d6fd0
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] ffffffff81126479 0000000000000000 ffff88007c5bbea8 ffffffff810ad3ce
> [ 316.338053] 0000000000000000 0000000081a0a240 1f40bd867ce4d9c3 0000000000000d0d
> [ 316.338053] dead000000000200 0000000000000000 0000000100026297 ffffffff810ad590
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 316.338053] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 316.338053] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 316.338053] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 316.338053] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 316.338053] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 316.338053] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
> [ 316.338053] NMI backtrace for cpu 15
> [ 316.338053] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14
> [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 316.338053] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000
> [ 316.338053] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
> [ 316.338053] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202
> [ 316.338053] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000
> [ 316.338053] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 316.338053] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000
> [ 316.338053] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000
> [ 316.338053] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000
> [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
> [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 316.338053] Stack:
> [ 316.338053] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa
> [ 316.338053] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7
> [ 316.338053] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000
> [ 316.338053] Call Trace:
> [ 316.338053] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
> [ 316.338053] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
> [ 316.338053] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
> [ 316.338053] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
> [ 316.338053] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
> [ 311.122004] BUG: spinlock lockup suspected on CPU#8, rcu_torture_rea/789
> [ 311.122004] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11
> [ 311.122004] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] ffff88007fb6cc00 ffff88007fb03d88 ffffffff8132cd6c ffff88007cafcb00
> [ 311.122004] ffff88007fb03da8 ffffffff81092fb3 ffff88007fb6cc00 00000000cfc06af0
> [ 311.122004] ffff88007fb03dd8 ffffffff810930db ffff88007fb6cc00 ffffffff820d8c80
> [ 311.122004] Call Trace:
> [ 311.122004] <IRQ> [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
> [ 311.122004] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
> [ 311.122004] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
> [ 311.122004] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 311.122004] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 311.122004] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 311.122004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 311.122004] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 311.122004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 311.122004] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 311.122004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 311.122004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 311.122004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 311.122004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 311.122004] <EOI> [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Sending NMI to all CPUs:
> [ 311.122004] NMI backtrace for cpu 0
> [ 311.122004] CPU: 0 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007c75be80 ti: ffff88007c774000 task.ti: ffff88007c774000
> [ 311.122004] RIP: 0010:[<ffffffff818af94b>] [<ffffffff818af94b>] _cond_resched+0xb/0x20
> [ 311.122004] RSP: 0018:ffff88007c777df0 EFLAGS: 00000286
> [ 311.122004] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 311.122004] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb
> [ 311.122004] RBP: ffff88007c777e00 R08: ffff88007c774000 R09: ffff88007fa0cc00
> [ 311.122004] R10: ffff88007c777e30 R11: 000000000000005a R12: 0000000000000000
> [ 311.122004] R13: 0000006a519a813f R14: 000000000000127b R15: ffffffff820d6fd0
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0
> [ 311.122004] Stack:
> [ 311.122004] ffffffff81126479 0000000000000000 ffff88007c777ea8 ffffffff810ad3ce
> [ 311.122004] 0000000000000000 0000000081a0a240 44bdc3e2f3607f45 0000000000001066
> [ 311.122004] dead000000000200 0000000000000000 0000000100026293 ffffffff810ad590
> [ 311.122004] Call Trace:
> [ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 65 8b 15 49 b4 75 7e 85 d2 74 03 <31> c0 c3 55 48 89 e5 e8 79 ff ff ff b8 01 00 00 00 5d c3 66 90
> [ 311.122004] NMI backtrace for cpu 2
> [ 311.122004] CPU: 2 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000
> [ 311.122004] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
> [ 311.122004] RSP: 0018:ffff88007c0f7df8 EFLAGS: 00000246
> [ 311.122004] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
> [ 311.122004] RBP: ffff88007c0f7e00 R08: ffff88007c0f4000 R09: ffff88007fa4cc00
> [ 311.122004] R10: ffff88007c0f7e30 R11: 000000000000005a R12: 0000000000000000
> [ 311.122004] R13: 0000006a51d7a937 R14: 000000000000127b R15: ffffffff820d6fd0
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] 0000000000000000 ffff88007c0f7ea8 ffffffff810ad3ce 0000000000000000
> [ 311.122004] 0000000081a0a240 e1c9c2832fdf50b8 00000000000010f6 dead000000000200
> [ 311.122004] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000
> [ 311.122004] Call Trace:
> [ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
> [ 311.122004] NMI backtrace for cpu 3
> [ 311.122004] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000
> [ 311.122004] RIP: 0010:[<ffffffff81092067>] [<ffffffff81092067>] queued_spin_lock_slowpath+0x127/0x1a0
> [ 311.122004] RSP: 0018:ffff88007c5bfd18 EFLAGS: 00000002
> [ 311.122004] RAX: 0000000000000000 RBX: ffff88007fb6cc00 RCX: ffff88007fa75e80
> [ 311.122004] RDX: 0000000000100101 RSI: ffffffff81ca0d44 RDI: 0000000000100000
> [ 311.122004] RBP: ffff88007c5bfd30 R08: 0000000000000000 R09: 0000000000000a64
> [ 311.122004] R10: ffff88007c5bff58 R11: 0000000000000a64 R12: 0000000000000000
> [ 311.122004] R13: ffff88007fa75e80 R14: 00000000cfc06af0 R15: ffff88007c5bfdd0
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] ffff88007fb6cc00 00000000cfc06af0 0000000000000001 ffff88007c5bfd60
> [ 311.122004] ffffffff81093185 0000000000000286 ffff88007fb6cc00 ffff88007fb6cc00
> [ 311.122004] 000000000000cc00 ffff88007c5bfd80 ffffffff818b401f 000000000000000b
> [ 311.122004] Call Trace:
> [ 311.122004] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 311.122004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 311.122004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 311.122004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 311.122004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 311.122004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 <8b> 13 66 85 d2 75 f7 be 01 00 00 00 eb 10 89 d0 f0 0f b1 33 39
> [ 311.122004] NMI backtrace for cpu 5
> [ 311.122004] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000
> [ 311.122004] RIP: 0010:[<ffffffff810cd5c3>] [<ffffffff810cd5c3>] smp_call_function_single+0x103/0x140
> [ 311.122004] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202
> [ 311.122004] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000
> [ 311.122004] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7
> [ 311.122004] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002
> [ 311.122004] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980
> [ 311.122004] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] 0000000000000000 0000000000000000 0000000000000000 0000000000000003
> [ 311.122004] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0
> [ 311.122004] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009
> [ 311.122004] Call Trace:
> [ 311.122004] [<ffffffff810aedbe>] sync_rcu_exp_select_cpus+0x1be/0x3d0
> [ 311.122004] [<ffffffff810af980>] ? rcu_seq_end.part.52+0x30/0x30
> [ 311.122004] [<ffffffff810afb9f>] synchronize_rcu_expedited.part.65+0x5f/0xb0
> [ 311.122004] [<ffffffff810afc06>] synchronize_rcu_expedited+0x16/0x40
> [ 311.122004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 311.122004] [<ffffffff813394bf>] ? delay_tsc+0x8f/0xc0
> [ 311.122004] [<ffffffff81339366>] ? __udelay+0x26/0x30
> [ 311.122004] [<ffffffff810ac5a1>] rcu_torture_writer+0x441/0x6b0
> [ 311.122004] [<ffffffff810ac160>] ? rcu_torture_fakewriter+0x160/0x160
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: c6 05 f9 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 <8b> 46 18 a8 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5
> [ 311.122004] NMI backtrace for cpu 7
> [ 311.122004] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000
> [ 311.122004] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
> [ 311.122004] RSP: 0018:ffff88007cb2bdf8 EFLAGS: 00000246
> [ 311.122004] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
> [ 311.122004] RBP: ffff88007cb2be00 R08: ffff88007cb28000 R09: ffff88007faecc00
> [ 311.122004] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000000000000000
> [ 311.122004] R13: 0000006a51d7a959 R14: 000000000000127b R15: ffffffff820d6fd0
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] 0000000000000000 ffff88007cb2bea8 ffffffff810ad3ce 0000000000000000
> [ 311.122004] 0000000000015380 938d1d05a9edd694 00000000000000f6 dead000000000200
> [ 311.122004] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000
> [ 311.122004] Call Trace:
> [ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
> [ 311.122004] NMI backtrace for cpu 8
> [ 311.122004] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000
> [ 311.122004] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
> [ 311.122004] RSP: 0018:ffff88007fb03d08 EFLAGS: 00000046
> [ 311.122004] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000008
> [ 311.122004] RDX: 0000000000000008 RSI: 0000000000000010 RDI: 0000000000000300
> [ 311.122004] RBP: ffff88007fb03d40 R08: 0000000000000000 R09: 000000000000f9ad
> [ 311.122004] R10: ffff88007c0f3f58 R11: 0000000000000a84 R12: ffffffff81f31740
> [ 311.122004] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000008
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] 0000000000000082 000000087fb03d18 000000000000ff40 0000000000000001
> [ 311.122004] ffffffff8103fd20 00000000cfc06af0 0000000000000000 ffff88007fb03d50
> [ 311.122004] ffffffff8103fd36 ffff88007fb03d98 ffffffff81331299 ffffffff81008b50
> [ 311.122004] Call Trace:
> [ 311.122004] <IRQ> \x01d [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
> [ 311.122004] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
> [ 311.122004] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
> [ 311.122004] [<ffffffff81008b50>] ? show_stack+0x20/0x50
> [ 311.122004] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
> [ 311.122004] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
> [ 311.122004] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 311.122004] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 311.122004] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 311.122004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 311.122004] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 311.122004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 311.122004] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 311.122004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 311.122004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 311.122004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 311.122004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 311.122004] <EOI> \x01d [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
> [ 311.122004] NMI backtrace for cpu 11
> [ 311.122004] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
> [ 311.122004] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
> [ 311.122004] RSP: 0018:ffff88007fb63e58 EFLAGS: 00000002
> [ 311.122004] RAX: 0000000000100101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
> [ 311.122004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
> [ 311.122004] RBP: ffff88007fb63e70 R08: 000000000000062f R09: 00000000000008e3
> [ 311.122004] R10: ffff88007c6f7f58 R11: 00000000000008e3 R12: 00000000cfc06af0
> [ 311.122004] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] ffff88007fb6cc00 00000000cfc06af0 0000000000000001 ffff88007fb63ea0
> [ 311.122004] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
> [ 311.122004] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
> [ 311.122004] Call Trace:
> [ 311.122004] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 311.122004] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 311.122004] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 311.122004] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 311.122004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 311.122004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 311.122004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 311.122004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 311.122004] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 311.122004] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 311.122004] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 311.122004] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 311.122004] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 311.122004] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 311.122004] [<ffffffff8114587f>] ? __mod_zone_page_state+0x6f/0xa0
> [ 311.122004] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 311.122004] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 311.122004] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 311.122004] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 311.122004] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 311.122004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 311.122004] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 311.122004] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 311.122004] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 311.122004] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 311.122004] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 311.122004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 311.122004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 311.122004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 311.122004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 311.122004] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 311.122004] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 311.122004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
> [ 311.122004] NMI backtrace for cpu 12
> [ 311.122004] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000
> [ 311.122004] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
> [ 311.122004] RSP: 0018:ffff88007c0dfd18 EFLAGS: 00000002
> [ 311.122004] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
> [ 311.122004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
> [ 311.122004] RBP: ffff88007c0dfd30 R08: 000000000000062f R09: 0000000000000743
> [ 311.122004] R10: ffff88007c0dff58 R11: 0000000000000743 R12: 00000000cfc06af0
> [ 311.122004] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c0dfdd0
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] ffff88007fa2cc00 00000000cfc06af0 0000000000000001 ffff88007c0dfd60
> [ 311.122004] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
> [ 311.122004] 000000000000cc00 ffff88007c0dfd80 ffffffff818b401f 0000000000000001
> [ 311.122004] Call Trace:
> [ 311.122004] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 311.122004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 311.122004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 311.122004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 311.122004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 311.122004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
> [ 311.122004] NMI backtrace for cpu 13
> [ 311.122004] CPU: 13 PID: 793 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007caf8c80 ti: ffff88007c740000 task.ti: ffff88007c740000
> [ 311.122004] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
> [ 311.122004] RSP: 0018:ffff88007c743df0 EFLAGS: 00000202
> [ 311.122004] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
> [ 311.122004] RBP: ffff88007c743e00 R08: ffff88007c740000 R09: ffff88007fbacc00
> [ 311.122004] R10: ffff88007c743e30 R11: 0000000000000001 R12: 0000000000000000
> [ 311.122004] R13: 0000006a51d78b8c R14: 000000000000127b R15: ffffffff820d6fd0
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] ffffffff81126479 0000000000000000 ffff88007c743ea8 ffffffff810ad3ce
> [ 311.122004] 0000000000000000 0000000081a0a240 9db61e92c238bec5 00000000000000a4
> [ 311.122004] dead000000000200 0000000000000000 0000000100026297 ffffffff810ad590
> [ 311.122004] Call Trace:
> [ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
> [ 311.122004] NMI backtrace for cpu 14
> [ 311.122004] CPU: 14 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007c918c80 ti: ffff88007c5b8000 task.ti: ffff88007c5b8000
> [ 311.122004] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
> [ 311.122004] RSP: 0018:ffff88007c5bbdf0 EFLAGS: 00000202
> [ 311.122004] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
> [ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
> [ 311.122004] RBP: ffff88007c5bbe00 R08: ffff88007c5b8000 R09: ffff88007fbccc00
> [ 311.122004] R10: ffff88007c5bbe30 R11: 0000000000000001 R12: 0000000000000000
> [ 311.122004] R13: 0000006a51d78bd7 R14: 000000000000127b R15: ffffffff820d6fd0
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] ffffffff81126479 0000000000000000 ffff88007c5bbea8 ffffffff810ad3ce
> [ 311.122004] 0000000000000000 0000000081a0a240 1f40bd867ce4d9c3 0000000000000d0d
> [ 311.122004] dead000000000200 0000000000000000 0000000100026297 ffffffff810ad590
> [ 311.122004] Call Trace:
> [ 311.122004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 311.122004] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
> [ 311.122004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 311.122004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 311.122004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 311.122004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 311.122004] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
> [ 311.122004] NMI backtrace for cpu 15
> [ 311.122004] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14
> [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 311.122004] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000
> [ 311.122004] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
> [ 311.122004] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202
> [ 311.122004] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000
> [ 311.122004] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 311.122004] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000
> [ 311.122004] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000
> [ 311.122004] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000
> [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
> [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 311.122004] Stack:
> [ 311.122004] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa
> [ 311.122004] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7
> [ 311.122004] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000
> [ 311.122004] Call Trace:
> [ 311.122004] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
> [ 311.122004] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
> [ 311.122004] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
> [ 311.122004] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
> [ 311.122004] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
> [ 462.372004] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 462.372004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=48568
> [ 462.372004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=48568
> [ 462.372004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=48568
> [ 462.372004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=48569
> [ 462.372004] (detected by 13, t=147016 jiffies, g=4731, c=4730, q=2)
> [ 462.372004] Task dump for CPU 3:
> [ 462.372004] rcu_torture_rea R running task 14064 782 2 0x00000008
> [ 462.372004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
> [ 462.372004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
> [ 462.372004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
> [ 462.372004] Call Trace:
> [ 462.372004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 462.372004] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
> [ 462.372004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 462.372004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 462.372004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 462.372004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 462.372004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 462.372004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 462.372004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 462.372004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 462.372004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 462.372004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 462.372004] Task dump for CPU 8:
> [ 462.372004] rcu_torture_rea R running task 14760 789 2 0x00000008
> [ 462.372004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
> [ 462.372004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
> [ 462.372004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
> [ 462.372004] Call Trace:
> [ 462.372004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
> [ 462.372004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
> [ 462.372004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
> [ 462.372004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 462.372004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 462.372004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
> [ 462.372004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 462.372004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 462.372004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 462.372004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 462.372004] Task dump for CPU 11:
> [ 462.372004] torture_onoff R running task 13416 798 2 0x00000008
> [ 462.372004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
> [ 462.372004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
> [ 462.372004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
> [ 462.372004] Call Trace:
> [ 462.372004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
> [ 462.372004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
> [ 462.372004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
> [ 462.372004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
> [ 462.372004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
> [ 462.372004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 462.372004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
> [ 462.372004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
> [ 462.372004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
> [ 462.372004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
> [ 462.372004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
> [ 462.372004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 462.372004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 462.372004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 462.372004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 462.372004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
> [ 462.372004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
> [ 462.372004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 462.372004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 462.372004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 462.372004] Task dump for CPU 12:
> [ 462.372004] rcu_torture_rea R running task 14064 786 2 0x00000008
> [ 462.372004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
> [ 462.372004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
> [ 462.372004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
> [ 462.372004] Call Trace:
> [ 462.372004] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
> [ 462.372004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 462.372004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 462.372004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 462.372004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 462.372004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 462.372004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 462.372004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 462.372004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 462.372004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 462.372004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 462.372004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 481.191011] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1388586 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
> [ 481.193164] rcu-torture: Reader Pipe: 10501340394 14768 0 0 0 0 0 0 0 0 0
> [ 481.194038] rcu-torture: Reader Batch: 10185892351 315462811 0 0 0 0 0 0 0 0 0
> [ 481.194945] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
> [ 481.196067] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
> [ 481.196689] rcu_preempt: wait state: 3 ->state: 0x1
> [ 481.197181] rcu_sched: wait state: 1 ->state: 0x1
> [ 481.197658] rcu_bh: wait state: 1 ->state: 0x1
> [ 525.377004] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 525.377004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=69054
> [ 525.377004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=69054
> [ 525.377004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=69054
> [ 525.377004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=69054
> [ 525.377004] (detected by 2, t=210021 jiffies, g=4731, c=4730, q=2)
> [ 525.377004] Task dump for CPU 3:
> [ 525.377004] rcu_torture_rea R running task 14064 782 2 0x00000008
> [ 525.377004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
> [ 525.377004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
> [ 525.377004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
> [ 525.377004] Call Trace:
> [ 525.377004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 525.377004] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
> [ 525.377004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 525.377004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 525.377004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 525.377004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 525.377004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 525.377004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 525.377004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 525.377004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 525.377004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 525.377004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 525.377004] Task dump for CPU 8:
> [ 525.377004] rcu_torture_rea R running task 14760 789 2 0x00000008
> [ 525.377004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
> [ 525.377004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
> [ 525.377004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
> [ 525.377004] Call Trace:
> [ 525.377004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
> [ 525.377004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
> [ 525.377004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
> [ 525.377004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 525.377004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 525.377004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
> [ 525.377004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 525.377004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 525.377004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 525.377004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 525.377004] Task dump for CPU 11:
> [ 525.377004] torture_onoff R running task 13416 798 2 0x00000008
> [ 525.377004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
> [ 525.377004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
> [ 525.377004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
> [ 525.377004] Call Trace:
> [ 525.377004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
> [ 525.377004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
> [ 525.377004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
> [ 525.377004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
> [ 525.377004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
> [ 525.377004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 525.377004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
> [ 525.377004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
> [ 525.377004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
> [ 525.377004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
> [ 525.377004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
> [ 525.377004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 525.377004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 525.377004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 525.377004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 525.377004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
> [ 525.377004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
> [ 525.377004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 525.377004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 525.377004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 525.377004] Task dump for CPU 12:
> [ 525.377004] rcu_torture_rea R running task 14064 786 2 0x00000008
> [ 525.377004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
> [ 525.377004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
> [ 525.377004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
> [ 525.377004] Call Trace:
> [ 525.377004] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
> [ 525.377004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 525.377004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 525.377004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 525.377004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 525.377004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 525.377004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 525.377004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 525.377004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 525.377004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 525.377004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 525.377004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 541.198012] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1507834 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
> [ 541.200373] rcu-torture: Reader Pipe: 11417029944 14768 0 0 0 0 0 0 0 0 0
> [ 541.201326] rcu-torture: Reader Batch: 11101581901 315462811 0 0 0 0 0 0 0 0 0
> [ 541.202335] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
> [ 541.203542] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
> [ 541.204243] rcu_preempt: wait state: 3 ->state: 0x1
> [ 541.204777] rcu_sched: wait state: 1 ->state: 0x1
> [ 541.205309] rcu_bh: wait state: 1 ->state: 0x1
> [ 588.382004] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 588.382004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=90027
> [ 588.382004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=90027
> [ 588.382004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=90027
> [ 588.382004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=90027
> [ 588.382004] (detected by 2, t=273026 jiffies, g=4731, c=4730, q=6)
> [ 588.382004] Task dump for CPU 3:
> [ 588.382004] rcu_torture_rea R running task 14064 782 2 0x00000008
> [ 588.382004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
> [ 588.382004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
> [ 588.382004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
> [ 588.382004] Call Trace:
> [ 588.382004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 588.382004] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
> [ 588.382004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 588.382004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 588.382004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 588.382004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 588.382004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 588.382004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 588.382004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 588.382004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 588.382004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 588.382004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 588.382004] Task dump for CPU 8:
> [ 588.382004] rcu_torture_rea R running task 14760 789 2 0x00000008
> [ 588.382004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
> [ 588.382004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
> [ 588.382004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
> [ 588.382004] Call Trace:
> [ 588.382004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
> [ 588.382004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
> [ 588.382004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
> [ 588.382004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 588.382004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 588.382004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
> [ 588.382004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 588.382004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 588.382004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 588.382004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 588.382004] Task dump for CPU 11:
> [ 588.382004] torture_onoff R running task 13416 798 2 0x00000008
> [ 588.382004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
> [ 588.382004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
> [ 588.382004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
> [ 588.382004] Call Trace:
> [ 588.382004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
> [ 588.382004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
> [ 588.382004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
> [ 588.382004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
> [ 588.382004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
> [ 588.382004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 588.382004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
> [ 588.382004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
> [ 588.382004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
> [ 588.382004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
> [ 588.382004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
> [ 588.382004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 588.382004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 588.382004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 588.382004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 588.382004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
> [ 588.382004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
> [ 588.382004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 588.382004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 588.382004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 588.382004] Task dump for CPU 12:
> [ 588.382004] rcu_torture_rea R running task 14064 786 2 0x00000008
> [ 588.382004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
> [ 588.382004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
> [ 588.382004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
> [ 588.382004] Call Trace:
> [ 588.382004] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
> [ 588.382004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 588.382004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 588.382004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 588.382004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 588.382004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 588.382004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 588.382004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 588.382004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 588.382004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 588.382004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 588.382004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 601.205012] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1628388 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
> [ 601.207374] rcu-torture: Reader Pipe: 12328853039 14768 0 0 0 0 0 0 0 0 0
> [ 601.208335] rcu-torture: Reader Batch: 12013404996 315462811 0 0 0 0 0 0 0 0 0
> [ 601.209353] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
> [ 601.210556] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
> [ 601.211259] rcu_preempt: wait state: 3 ->state: 0x1
> [ 601.211796] rcu_sched: wait state: 1 ->state: 0x1
> [ 601.212335] rcu_bh: wait state: 1 ->state: 0x1
> [ 651.387004] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 651.387004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=111003
> [ 651.387004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=111003
> [ 651.387004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=111004
> [ 651.387004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=111004
> [ 651.387004] (detected by 13, t=336031 jiffies, g=4731, c=4730, q=10)
> [ 651.387004] Task dump for CPU 3:
> [ 651.387004] rcu_torture_rea R running task 14064 782 2 0x00000008
> [ 651.387004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
> [ 651.387004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
> [ 651.387004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
> [ 651.387004] Call Trace:
> [ 651.387004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 651.387004] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
> [ 651.387004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 651.387004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 651.387004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 651.387004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 651.387004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 651.387004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 651.387004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 651.387004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 651.387004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 651.387004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 651.387004] Task dump for CPU 8:
> [ 651.387004] rcu_torture_rea R running task 14760 789 2 0x00000008
> [ 651.387004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
> [ 651.387004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
> [ 651.387004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
> [ 651.387004] Call Trace:
> [ 651.387004] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
> [ 651.387004] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
> [ 651.387004] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
> [ 651.387004] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 651.387004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 651.387004] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
> [ 651.387004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 651.387004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 651.387004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 651.387004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 651.387004] Task dump for CPU 11:
> [ 651.387004] torture_onoff R running task 13416 798 2 0x00000008
> [ 651.387004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
> [ 651.387004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
> [ 651.387004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
> [ 651.387004] Call Trace:
> [ 651.387004] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
> [ 651.387004] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
> [ 651.387004] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
> [ 651.387004] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
> [ 651.387004] [<ffffffff818b6422>] ? page_fault+0x22/0x30
> [ 651.387004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 651.387004] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
> [ 651.387004] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
> [ 651.387004] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
> [ 651.387004] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
> [ 651.387004] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
> [ 651.387004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 651.387004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 651.387004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 651.387004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 651.387004] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
> [ 651.387004] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
> [ 651.387004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 651.387004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 651.387004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 651.387004] Task dump for CPU 12:
> [ 651.387004] rcu_torture_rea R running task 14064 786 2 0x00000008
> [ 651.387004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
> [ 651.387004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
> [ 651.387004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
> [ 651.387004] Call Trace:
> [ 651.387004] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
> [ 651.387004] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 651.387004] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 651.387004] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 651.387004] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 651.387004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 651.387004] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 651.387004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 651.387004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 651.387004] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 651.387004] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 651.387004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 661.212012] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1750558 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608
> [ 661.214362] rcu-torture: Reader Pipe: 13245634209 14768 0 0 0 0 0 0 0 0 0
> [ 661.215321] rcu-torture: Reader Batch: 12930186166 315462811 0 0 0 0 0 0 0 0 0
> [ 661.216318] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0
> [ 661.217515] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0
> [ 661.218213] rcu_preempt: wait state: 3 ->state: 0x1
> [ 661.218764] rcu_sched: wait state: 1 ->state: 0x1
> [ 661.219294] rcu_bh: wait state: 1 ->state: 0x1
> [ 714.392003] INFO: rcu_preempt detected stalls on CPUs/tasks:
> [ 714.392003] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=131969
> [ 714.392003] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=131969
> [ 714.392003] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=131969
> [ 714.392003] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=131969
> [ 714.392003] (detected by 0, t=399032 jiffies, g=4731, c=4730, q=10)
> [ 714.392003] Task dump for CPU 3:
> [ 714.392003] rcu_torture_rea R running task 14064 782 2 0x00000008
> [ 714.392003] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000
> [ 714.392003] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7
> [ 714.392003] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0
> [ 714.392003] Call Trace:
> [ 714.392003] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 714.392003] [<ffffffff81091faf>] ? queued_spin_lock_slowpath+0x6f/0x1a0
> [ 714.392003] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 714.392003] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 714.392003] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 714.392003] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 714.392003] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 714.392003] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 714.392003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 714.392003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 714.392003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 714.392003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 714.392003] Task dump for CPU 8:
> [ 714.392003] rcu_torture_rea R running task 14760 789 2 0x00000008
> [ 714.392003] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080
> [ 714.392003] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000
> [ 714.392003] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38
> [ 714.392003] Call Trace:
> [ 714.392003] [<ffffffff818af15c>] ? __schedule+0x38c/0xb00
> [ 714.392003] [<ffffffff818afd13>] ? preempt_schedule_irq+0x43/0x60
> [ 714.392003] [<ffffffff818b513b>] ? retint_kernel+0x1b/0x1d
> [ 714.392003] [<ffffffff818af94b>] ? _cond_resched+0xb/0x20
> [ 714.392003] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 714.392003] [<ffffffff810ad3ce>] ? rcu_torture_reader+0x11e/0x2e0
> [ 714.392003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 714.392003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 714.392003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 714.392003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 714.392003] Task dump for CPU 11:
> [ 714.392003] torture_onoff R running task 13416 798 2 0x00000008
> [ 714.392003] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002
> [ 714.392003] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00
> [ 714.392003] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95
> [ 714.392003] Call Trace:
> [ 714.392003] [<ffffffff8104a8b5>] ? __bad_area_nosemaphore+0x75/0x1f0
> [ 714.392003] [<ffffffff8104aa3e>] ? bad_area_nosemaphore+0xe/0x10
> [ 714.392003] [<ffffffff8104ac95>] ? __do_page_fault+0x85/0x450
> [ 714.392003] [<ffffffff8104b06c>] ? do_page_fault+0xc/0x10
> [ 714.392003] [<ffffffff818b6422>] ? page_fault+0x22/0x30
> [ 714.392003] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 714.392003] [<ffffffff810b95c4>] ? timer_cpu_notify+0xe4/0x160
> [ 714.392003] [<ffffffff81073ea5>] ? notifier_call_chain+0x45/0x70
> [ 714.392003] [<ffffffff81073fc9>] ? __raw_notifier_call_chain+0x9/0x10
> [ 714.392003] [<ffffffff8105759e>] ? cpu_notify_nofail+0x1e/0x30
> [ 714.392003] [<ffffffff81057852>] ? _cpu_down+0x212/0x350
> [ 714.392003] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 714.392003] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 714.392003] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 714.392003] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 714.392003] [<ffffffff810579bf>] ? cpu_down+0x2f/0x50
> [ 714.392003] [<ffffffff811266b5>] ? torture_onoff+0x115/0x380
> [ 714.392003] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 714.392003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 714.392003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 714.392003] Task dump for CPU 12:
> [ 714.392003] rcu_torture_rea R running task 14064 786 2 0x00000008
> [ 714.392003] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5
> [ 714.392003] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0
> [ 714.392003] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0
> [ 714.392003] Call Trace:
> [ 714.392003] [<ffffffff813311f5>] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270
> [ 714.392003] [<ffffffff81093185>] ? do_raw_spin_lock+0x145/0x150
> [ 714.392003] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
> [ 714.392003] [<ffffffff810b8faf>] ? lock_timer_base.isra.23+0x4f/0x70
> [ 714.392003] [<ffffffff810ba6fa>] ? mod_timer+0x6a/0x200
> [ 714.392003] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 714.392003] [<ffffffff810ad557>] ? rcu_torture_reader+0x2a7/0x2e0
> [ 714.392003] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 714.392003] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 714.392003] [<ffffffff810732f6>] ? kthread+0xd6/0xf0
> [ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 714.392003] [<ffffffff818b499f>] ? ret_from_fork+0x3f/0x70
> [ 714.392003] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 0.000000] Linux version 4.5.0-rc1+ (root@insomnia) (gcc version 5.3.0 (GCC) ) #14 SMP PREEMPT Wed Mar 30 20:01:04 CST 2016
> [ 0.000000] Command line: selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
> [ 0.000000] x86/fpu: Legacy x87 FPU detected.
> [ 0.000000] x86/fpu: Using 'lazy' FPU context switches.
> [ 0.000000] e820: BIOS-provided physical RAM map:
> [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
> [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdefff] usable
> [ 0.000000] BIOS-e820: [mem 0x000000007ffdf000-0x000000007fffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
> [ 0.000000] NX (Execute Disable) protection: active
> [ 0.000000] SMBIOS 2.8 present.
> [ 0.000000] e820: last_pfn = 0x7ffdf max_arch_pfn = 0x400000000
> [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
> [ 0.000000] found SMP MP-table at [mem 0x000f6a50-0x000f6a5f] mapped at [ffff8800000f6a50]
> [ 0.000000] Scanning 1 areas for low memory corruption
> [ 0.000000] Using GB pages for direct mapping
> [ 0.000000] RAMDISK: [mem 0x7fcd4000-0x7ffcffff]
> [ 0.000000] ACPI: Early table checksum verification disabled
> [ 0.000000] ACPI: RSDP 0x00000000000F6A00 000014 (v00 BOCHS )
> [ 0.000000] ACPI: RSDT 0x000000007FFE1580 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
> [ 0.000000] ACPI: FACP 0x000000007FFE061A 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
> [ 0.000000] ACPI: DSDT 0x000000007FFDFA80 000B9A (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001)
> [ 0.000000] ACPI: FACS 0x000000007FFDFA40 000040
> [ 0.000000] ACPI: SSDT 0x000000007FFE068E 000DCA (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001)
> [ 0.000000] ACPI: APIC 0x000000007FFE1458 0000F0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
> [ 0.000000] ACPI: HPET 0x000000007FFE1548 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
> [ 0.000000] No NUMA configuration found
> [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007ffdefff]
> [ 0.000000] NODE_DATA(0) allocated [mem 0x7ffdb000-0x7ffdefff]
> [ 0.000000] Zone ranges:
> [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
> [ 0.000000] DMA32 [mem 0x0000000001000000-0x000000007ffdefff]
> [ 0.000000] Normal empty
> [ 0.000000] Movable zone start for each node
> [ 0.000000] Early memory node ranges
> [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff]
> [ 0.000000] node 0: [mem 0x0000000000100000-0x000000007ffdefff]
> [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000007ffdefff]
> [ 0.000000] ACPI: PM-Timer IO Port: 0x608
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
> [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
> [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
> [ 0.000000] Using ACPI (MADT) for SMP configuration information
> [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
> [ 0.000000] smpboot: Allowing 16 CPUs, 0 hotplug CPUs
> [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
> [ 0.000000] e820: [mem 0x80000000-0xfeffbfff] available for PCI devices
> [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
> [ 0.000000] setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:16 nr_node_ids:1
> [ 0.000000] PERCPU: Embedded 32 pages/cpu @ffff88007fa00000 s92008 r8192 d30872 u131072
> [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 515944
> [ 0.000000] Policy zone: DMA32
> [ 0.000000] Kernel command line: selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
> [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
> [ 0.000000] Memory: 2040780K/2096628K available (8931K kernel code, 1258K rwdata, 3700K rodata, 1092K init, 984K bss, 55848K reserved, 0K cma-reserved)
> [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=16, Nodes=1
> [ 0.000000] Preemptible hierarchical RCU implementation.
> [ 0.000000] RCU debugfs-based tracing is enabled.
> [ 0.000000] CONFIG_RCU_FANOUT set to non-default value of 2
> [ 0.000000] RCU torture testing starts during boot.
> [ 0.000000] Four(or more)-level hierarchy is enabled.
> [ 0.000000] Build-time adjustment of leaf fanout to 2.
> [ 0.000000] RCU kthread priority: 2.
> [ 0.000000] NR_IRQS:4352 nr_irqs:552 16
> [ 0.000000] Console: colour *CGA 80x25
> [ 0.000000] console [ttyS0] enabled
> [ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
> [ 0.000000] tsc: Fast TSC calibration using PIT
> [ 0.000000] tsc: Detected 3466.832 MHz processor
> [ 0.003013] Calibrating delay loop (skipped), value calculated using timer frequency.. 6933.66 BogoMIPS (lpj=3466832)
> [ 0.003833] pid_max: default: 32768 minimum: 301
> [ 0.004006] ACPI: Core revision 20160108
> [ 0.005469] ACPI: 2 ACPI AML tables successfully acquired and loaded
> [ 0.005978]
> [ 0.006019] Security Framework initialized
> [ 0.006345] SELinux: Disabled at boot.
> [ 0.006740] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
> [ 0.007361] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
> [ 0.008155] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
> [ 0.008679] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
> [ 0.009966] mce: CPU supports 10 MCE banks
> [ 0.010033] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
> [ 0.010446] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
> [ 0.012422] Freeing SMP alternatives memory: 32K (ffffffff8204d000 - ffffffff82055000)
> [ 0.013352] Switched APIC routing to physical flat.
> [ 0.014528] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> [ 0.024122] smpboot: CPU0: Intel(R) Xeon(R) CPU X5690 @ 3.47GHz (family: 0x6, model: 0x2c, stepping: 0x2)
> [ 0.025000] Performance Events: 16-deep LBR, Westmere events, Intel PMU driver.
> [ 0.025496] perf_event_intel: CPUID marked event: 'bus cycles' unavailable
> [ 0.026006] ... version: 2
> [ 0.026368] ... bit width: 48
> [ 0.026737] ... generic registers: 4
> [ 0.027003] ... value mask: 0000ffffffffffff
> [ 0.027478] ... max period: 000000007fffffff
> [ 0.027953] ... fixed-purpose events: 3
> [ 0.028003] ... event mask: 000000070000000f
> [ 0.037037] x86: Booting SMP configuration:
> [ 0.037492] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15
> [ 0.995027] x86: Booted up 1 node, 16 CPUs
> [ 0.995371] smpboot: Total of 16 processors activated (111391.08 BogoMIPS)
> [ 0.997856] devtmpfs: initialized
> [ 0.998418] kworker/u32:0 (98) used greatest stack depth: 13928 bytes left
> [ 0.998561] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
> [ 0.998925] RTC time: 12:20:59, date: 03/30/16
> [ 0.999018] NET: Registered protocol family 16
> [ 1.005018] cpuidle: using governor menu
> [ 1.005421] ACPI: bus type PCI registered
> [ 1.005818] PCI: Using configuration type 1 for base access
> [ 1.005747] kworker/u32:3 (115) used greatest stack depth: 13920 bytes left
> [ 1.021340] HugeTLB registered 2 MB page size, pre-allocated 0 pages
> [ 1.022603] ACPI: Added _OSI(Module Device)
> [ 1.022952] ACPI: Added _OSI(Processor Device)
> [ 1.023005] ACPI: Added _OSI(3.0 _SCP Extensions)
> [ 1.023355] ACPI: Added _OSI(Processor Aggregator Device)
> [ 1.025022] ACPI: Interpreter enabled
> [ 1.025320] ACPI: (supports S0 S3 S4 S5)
> [ 1.025667] ACPI: Using IOAPIC for interrupt routing
> [ 1.026046] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
> [ 1.032012] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
> [ 1.032602] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
> [ 1.033009] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
> [ 1.033650] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
> [ 1.034072] PCI host bridge to bus 0000:00
> [ 1.034468] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
> [ 1.034968] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
> [ 1.035004] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
> [ 1.035585] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff window]
> [ 1.036017] pci_bus 0000:00: root bus resource [bus 00-ff]
> [ 1.039433] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
> [ 1.039968] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
> [ 1.040005] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
> [ 1.040517] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
> [ 1.041368] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI
> [ 1.041916] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB
> [ 1.042815] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
> [ 1.043205] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
> [ 1.043758] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
> [ 1.044198] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
> [ 1.044713] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
> [ 1.046143] ACPI: Enabled 16 GPEs in block 00 to 0F
> [ 1.046807] vgaarb: loaded
> [ 1.047110] SCSI subsystem initialized
> [ 1.047744] ACPI: bus type USB registered
> [ 1.048059] usbcore: registered new interface driver usbfs
> [ 1.048522] usbcore: registered new interface driver hub
> [ 1.049121] usbcore: registered new device driver usb
> [ 1.049610] pps_core: LinuxPPS API ver. 1 registered
> [ 1.049993] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
> [ 1.050037] PTP clock support registered
> [ 1.050709] Advanced Linux Sound Architecture Driver Initialized.
> [ 1.051063] PCI: Using ACPI for IRQ routing
> [ 1.051868] NetLabel: Initializing
> [ 1.052004] NetLabel: domain hash size = 128
> [ 1.052344] NetLabel: protocols = UNLABELED CIPSOv4
> [ 1.052731] NetLabel: unlabeled traffic allowed by default
> [ 1.053340] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
> [ 1.053767] hpet0: 3 comparators, 64-bit 100.000000 MHz counter
> [ 1.060502] clocksource: Switched to clocksource hpet
> [ 1.067708] VFS: Disk quotas dquot_6.6.0
> [ 1.068138] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> [ 1.068861] pnp: PnP ACPI init
> [ 1.069996] pnp: PnP ACPI: found 5 devices
> [ 1.083114] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
> [ 1.084330] NET: Registered protocol family 2
> [ 1.084798] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
> [ 1.085547] TCP bind hash table entries: 16384 (order: 7, 524288 bytes)
> [ 1.086253] TCP: Hash tables configured (established 16384 bind 16384)
> [ 1.086773] UDP hash table entries: 1024 (order: 4, 98304 bytes)
> [ 1.087369] UDP-Lite hash table entries: 1024 (order: 4, 98304 bytes)
> [ 1.087919] NET: Registered protocol family 1
> [ 1.088579] RPC: Registered named UNIX socket transport module.
> [ 1.089121] RPC: Registered udp transport module.
> [ 1.089484] RPC: Registered tcp transport module.
> [ 1.089831] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [ 1.090460] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
> [ 1.090902] pci 0000:00:01.0: PIIX3: Enabling Passive Release
> [ 1.091511] pci 0000:00:01.0: Activating ISA DMA hang workarounds
> [ 1.092093] Unpacking initramfs...
> [ 1.134394] Freeing initrd memory: 3056K (ffff88007fcd4000 - ffff88007ffd0000)
> [ 1.137993] Scanning for low memory corruption every 60 seconds
> [ 1.138767] rcu-torture:--- Start of test: nreaders=15 nfakewriters=4 stat_interval=60 verbose=1 test_no_idle_hz=1 shuffle_interval=3 stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 fqs_stutter=3 test_boost=1/0 test_boost_interval=7 test_boost_duration=4 shutdown_secs=0 stall_cpu=0 stall_cpu_holdoff=10 n_barrier_cbs=0 onoff_interval=1 onoff_holdoff=0
> [ 1.141407] rcu-torture: Creating rcu_torture_writer task
> [ 1.141864] rcu-torture: Creating rcu_torture_fakewriter task
> [ 1.141869] rcu-torture: rcu_torture_writer task started
> [ 1.141870] rcu-torture: Grace periods expedited from boot/sysfs for rcu,
> [ 1.141870] rcu-torture: Testing of dynamic grace-period expediting diabled.
> [ 1.143988] rcu-torture: Creating rcu_torture_fakewriter task
> [ 1.143990] rcu-torture: rcu_torture_fakewriter task started
> [ 1.144986] rcu-torture: Creating rcu_torture_fakewriter task
> [ 1.144990] rcu-torture: rcu_torture_fakewriter task started
> [ 1.146065] rcu-torture: Creating rcu_torture_fakewriter task
> [ 1.146120] rcu-torture: rcu_torture_fakewriter task started
> [ 1.147143] rcu-torture: rcu_torture_fakewriter task started
> [ 1.147141] rcu-torture: Creating rcu_torture_reader task
> [ 1.147233] rcu-torture: Creating rcu_torture_reader task
> [ 1.147235] rcu-torture: rcu_torture_reader task started
> [ 1.147314] rcu-torture: Creating rcu_torture_reader task
> [ 1.147317] rcu-torture: rcu_torture_reader task started
> [ 1.147357] rcu-torture: Creating rcu_torture_reader task
> [ 1.147363] rcu-torture: rcu_torture_reader task started
> [ 1.147403] rcu-torture: Creating rcu_torture_reader task
> [ 1.147406] rcu-torture: rcu_torture_reader task started
> [ 1.147479] rcu-torture: Creating rcu_torture_reader task
> [ 1.147483] rcu-torture: rcu_torture_reader task started
> [ 1.147543] rcu-torture: Creating rcu_torture_reader task
> [ 1.147549] rcu-torture: rcu_torture_reader task started
> [ 1.147607] rcu-torture: Creating rcu_torture_reader task
> [ 1.147611] rcu-torture: rcu_torture_reader task started
> [ 1.147669] rcu-torture: Creating rcu_torture_reader task
> [ 1.147679] rcu-torture: rcu_torture_reader task started
> [ 1.147729] rcu-torture: Creating rcu_torture_reader task
> [ 1.147740] rcu-torture: rcu_torture_reader task started
> [ 1.149119] rcu-torture: Creating rcu_torture_reader task
> [ 1.149123] rcu-torture: rcu_torture_reader task started
> [ 1.149990] rcu-torture: Creating rcu_torture_reader task
> [ 1.150107] rcu-torture: rcu_torture_reader task started
> [ 1.150142] rcu-torture: Creating rcu_torture_reader task
> [ 1.150147] rcu-torture: rcu_torture_reader task started
> [ 1.150208] rcu-torture: Creating rcu_torture_reader task
> [ 1.150212] rcu-torture: rcu_torture_reader task started
> [ 1.151160] rcu-torture: Creating rcu_torture_reader task
> [ 1.151221] rcu-torture: Creating rcu_torture_stats task
> [ 1.151253] rcu-torture: rcu_torture_reader task started
> [ 1.151277] rcu-torture: Creating torture_shuffle task
> [ 1.151284] rcu-torture: rcu_torture_stats task started
> [ 1.152080] rcu-torture: Creating torture_stutter task
> [ 1.152111] rcu-torture: torture_shuffle task started
> [ 1.152112] rcu-torture: rcu_torture_reader task started
> [ 1.154114] rcu-torture: Creating torture_onoff task
> [ 1.154118] rcu-torture: torture_stutter task started
> [ 1.211086] rcu-torture: Creating rcu_torture_cbflood task
> [ 1.211090] rcu-torture: torture_onoff task started
> [ 1.211092] rcu-torture:torture_onoff task: offlining 13
> [ 1.213955] rcu-torture: Creating rcu_torture_cbflood task
> [ 1.214122] rcu-torture: rcu_torture_cbflood task started
> [ 1.218078] rcu-torture: Creating rcu_torture_cbflood task
> [ 1.218734] rcu-torture: Creating rcu_torture_cbflood task
> [ 1.219118] rcu-torture: rcu_torture_cbflood task started
> [ 1.223173] rcu-torture: rcu_torture_cbflood task started
> [ 1.223205] rcu-torture: rcu_torture_cbflood task started
> [ 1.243284] rcu-torture:torture_onoff task: offlined 13
> [ 1.243675] futex hash table entries: 4096 (order: 6, 262144 bytes)
> [ 1.243736] audit: initializing netlink subsys (disabled)
> [ 1.243747] audit: type=2000 audit(1459340459.243:1): initialized
> [ 1.313263] NFS: Registering the id_resolver key type
> [ 1.313829] Key type id_resolver registered
> [ 1.314376] Key type id_legacy registered
> [ 1.354157] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
> [ 1.354945] io scheduler noop registered
> [ 1.356446] io scheduler deadline registered
> [ 1.356923] io scheduler cfq registered (default)
> [ 1.357612] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> [ 1.359433] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
> [ 1.361337] ACPI: Power Button [PWRF]
> [ 1.362621] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [ 1.399062] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
> [ 1.400539] Non-volatile memory driver v1.3
> [ 1.401156] Linux agpgart interface v0.103
> [ 1.401710] [drm] Initialized drm 1.1.0 20060810
> [ 1.429307] loop: module loaded
> [ 1.434097] scsi host0: ata_piix
> [ 1.435777] scsi host1: ata_piix
> [ 1.436290] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc000 irq 14
> [ 1.438073] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc008 irq 15
> [ 1.438894] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
> [ 1.439675] e100: Copyright(c) 1999-2006 Intel Corporation
> [ 1.440407] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
> [ 1.442252] e1000: Copyright (c) 1999-2006 Intel Corporation.
> [ 1.442889] sky2: driver version 1.30
> [ 1.443530] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [ 1.444322] ehci-pci: EHCI PCI platform driver
> [ 1.444823] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [ 1.445569] ohci-pci: OHCI PCI platform driver
> [ 1.449090] uhci_hcd: USB Universal Host Controller Interface driver
> [ 1.449826] usbcore: registered new interface driver usblp
> [ 1.451533] usbcore: registered new interface driver usb-storage
> [ 1.452336] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
> [ 1.455238] serio: i8042 KBD port at 0x60,0x64 irq 1
> [ 1.457074] serio: i8042 AUX port at 0x60,0x64 irq 12
> [ 1.457752] mousedev: PS/2 mouse device common for all mice
> [ 1.458778] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
> [ 1.461184] rtc_cmos 00:00: RTC can wake from S4
> [ 1.463104] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0
> [ 1.465953] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram, hpet irqs
> [ 1.468306] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
> [ 1.469385] hidraw: raw HID events driver (C) Jiri Kosina
> [ 1.470275] usbcore: registered new interface driver usbhid
> [ 1.470884] usbhid: USB HID core driver
> [ 1.471898] Netfilter messages via NETLINK v0.30.
> [ 1.472530] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
> [ 1.474410] ctnetlink v0.93: registering with nfnetlink.
> [ 1.550099] ip_tables: (C) 2000-2006 Netfilter Core Team
> [ 1.562112] Initializing XFRM netlink socket
> [ 1.562766] NET: Registered protocol family 10
> [ 1.566194] ip6_tables: (C) 2000-2006 Netfilter Core Team
> [ 1.651113] sit: IPv6 over IPv4 tunneling driver
> [ 1.651774] NET: Registered protocol family 17
> [ 1.652402] Key type dns_resolver registered
> [ 1.656232] microcode: CPU0 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.656892] microcode: CPU1 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.657595] microcode: CPU2 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.658311] microcode: CPU3 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.659050] microcode: CPU4 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.659713] microcode: CPU5 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.664080] microcode: CPU6 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.664717] microcode: CPU7 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.666372] microcode: CPU8 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.667095] microcode: CPU9 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.667730] microcode: CPU10 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.668984] microcode: CPU11 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.671078] microcode: CPU12 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.671735] microcode: CPU14 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.675111] microcode: CPU15 sig=0x206c2, pf=0x1, revision=0x1
> [ 1.675751] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
> [ 1.677129] registered taskstats version 1
> [ 1.678189] Magic number: 8:778:330
> [ 1.678610] tty tty51: hash matches
> [ 1.679080] console [netcon0] enabled
> [ 1.679486] netconsole: network logging started
> [ 1.681203] ALSA device list:
> [ 1.681517] No soundcards found.
> [ 1.686591] Freeing unused kernel memory: 1092K (ffffffff81f3c000 - ffffffff8204d000)
> [ 1.688489] Write protecting the kernel read-only data: 14336k
> [ 1.733287] Freeing unused kernel memory: 1296K (ffff8800018bc000 - ffff880001a00000)
> [ 1.737138] Freeing unused kernel memory: 396K (ffff880001d9d000 - ffff880001e00000)
> :: running early hook [udev]
> Warning: /lib/modules/4.5.0-rc1+/modules.devname not found - ignoring
> [ 1.827599] random: systemd-tmpfile urandom read with 3 bits of entropy available
> [ 1.828672] systemd-tmpfile (1173) used greatest stack depth: 13896 bytes left
> starting version 228
> :: running hook [udev]
> :: Triggering uevents...
> [ 2.069991] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
> [ 2.135095] tsc: Refined TSC clocksource calibration: 3466.788 MHz
> [ 2.135783] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x31f8c2dfb06, max_idle_ns: 440795261134 ns
> [ 2.247097] rcu-torture:torture_onoff task: offlining 2
> ERROR: device '' not found. Skipping fsck.
> ERROR: Unable to find root device ''.
> You are being dropped to a recovery shell
> Type 'exit' to try and continue booting
> [ 2.386672] smpboot: CPU 2 is now offline
> sh: can't access tty; job control turned off
> [rootfs /]# [ 2.397205] rcu-torture:torture_onoff task: offlined 2
> [ 2.410066] hrtimer: interrupt took 3042970 ns
> [ 3.146410] clocksource: Switched to clocksource tsc
> [ 3.399958] rcu-torture:torture_onoff task: onlining 2
> [ 3.460067] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 3.547187] rcu-torture:torture_onoff task: onlined 2
> [ 4.546024] rcu-torture:torture_onoff task: offlining 11
> [ 4.693029] smpboot: CPU 11 is now offline
> [ 4.741119] rcu-torture:torture_onoff task: offlined 11
> [ 5.749377] rcu-torture:torture_onoff task: offlining 14
> [ 5.949978] smpboot: CPU 14 is now offline
> [ 5.963969] rcu-torture:torture_onoff task: offlined 14
> [ 6.964014] rcu-torture:torture_onoff task: offlining 10
> [ 7.053009] smpboot: CPU 10 is now offline
> [ 7.110906] rcu-torture:torture_onoff task: offlined 10
> [ 9.111009] rcu-torture:torture_onoff task: offlining 15
> [ 9.168815] smpboot: CPU 15 is now offline
> [ 9.223617] rcu-torture:torture_onoff task: offlined 15
> [ 10.224013] rcu-torture:torture_onoff task: offlining 7
> [ 10.279743] smpboot: CPU 7 is now offline
> [ 10.334679] rcu-torture:torture_onoff task: offlined 7
> [ 11.353015] rcu-torture:torture_onoff task: offlining 8
> [ 11.399709] smpboot: CPU 8 is now offline
> [ 11.452791] rcu-torture:torture_onoff task: offlined 8
> [ 12.453012] rcu-torture:torture_onoff task: offlining 2
> [ 12.692639] smpboot: CPU 2 is now offline
> [ 12.700748] rcu-torture:torture_onoff task: offlined 2
> [ 13.701030] rcu-torture:torture_onoff task: offlining 4
> [ 13.805923] smpboot: CPU 4 is now offline
> [ 13.810522] rcu-torture:torture_onoff task: offlined 4
> [ 14.812009] rcu-torture:torture_onoff task: onlining 14
> [ 14.853417] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 14.978121] rcu-torture:torture_onoff task: onlined 14
> [ 15.993226] rcu-torture:torture_onoff task: offlining 1
> [ 16.075508] smpboot: CPU 1 is now offline
> [ 16.079509] rcu-torture:torture_onoff task: offlined 1
> [ 17.080012] rcu-torture:torture_onoff task: onlining 11
> [ 17.134382] smpboot: Booting Node 0 Processor 11 APIC 0xb
> [ 17.161137] rcu-torture:torture_onoff task: onlined 11
> [ 18.161010] rcu-torture:torture_onoff task: onlining 13
> [ 18.215414] smpboot: Booting Node 0 Processor 13 APIC 0xd
> [ 18.242122] microcode: CPU13 sig=0x206c2, pf=0x1, revision=0x1
> [ 18.242769] rcu-torture:torture_onoff task: onlined 13
> [ 19.243011] rcu-torture:torture_onoff task: onlining 7
> [ 19.297658] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 19.351182] rcu-torture:torture_onoff task: onlined 7
> [ 20.351029] rcu-torture:torture_onoff task: offlining 7
> [ 20.408213] smpboot: CPU 7 is now offline
> [ 20.463500] rcu-torture:torture_onoff task: offlined 7
> [ 21.464012] rcu-torture:torture_onoff task: onlining 15
> [ 21.490634] smpboot: Booting Node 0 Processor 15 APIC 0xf
> [ 21.617119] rcu-torture:torture_onoff task: onlined 15
> [ 22.617010] rcu-torture:torture_onoff task: offlining 14
> [ 22.675687] smpboot: CPU 14 is now offline
> [ 22.681349] rcu-torture:torture_onoff task: offlined 14
> [ 23.681012] rcu-torture:torture_onoff task: onlining 4
> [ 23.731637] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 23.871156] rcu-torture:torture_onoff task: onlined 4
> [ 24.871012] rcu-torture:torture_onoff task: onlining 1
> [ 24.900714] x86: Booting SMP configuration:
> [ 24.901186] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 24.950179] rcu-torture:torture_onoff task: onlined 1
> [ 25.950013] rcu-torture:torture_onoff task: offlining 3
> [ 26.057786] smpboot: CPU 3 is now offline
> [ 26.064052] rcu-torture:torture_onoff task: offlined 3
> [ 27.064012] rcu-torture:torture_onoff task: offlining 12
> [ 27.119717] smpboot: CPU 12 is now offline
> [ 27.174923] rcu-torture:torture_onoff task: offlined 12
> [ 28.175012] rcu-torture:torture_onoff task: offlining 11
> [ 28.230573] smpboot: CPU 11 is now offline
> [ 28.285886] rcu-torture:torture_onoff task: offlined 11
> [ 30.286014] rcu-torture:torture_onoff task: onlining 10
> [ 30.294771] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 30.321158] rcu-torture:torture_onoff task: onlined 10
> [ 31.321012] rcu-torture:torture_onoff task: offlining 10
> [ 31.382675] smpboot: CPU 10 is now offline
> [ 31.388604] rcu-torture:torture_onoff task: offlined 10
> [ 32.398957] rcu-torture:torture_onoff task: offlining 15
> [ 32.483642] smpboot: CPU 15 is now offline
> [ 32.503185] rcu-torture:torture_onoff task: offlined 15
> [ 33.517435] rcu-torture:torture_onoff task: offlining 9
> [ 33.544327] smpboot: CPU 9 is now offline
> [ 33.643562] rcu-torture:torture_onoff task: offlined 9
> [ 34.643009] rcu-torture:torture_onoff task: onlining 8
> [ 34.691663] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 34.940504] rcu-torture:torture_onoff task: onlined 8
> [ 35.940017] rcu-torture:torture_onoff task: onlining 12
> [ 35.977744] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 36.027219] rcu-torture:torture_onoff task: onlined 12
> [ 37.027017] rcu-torture:torture_onoff task: offlining 5
> [ 37.086642] smpboot: CPU 5 is now offline
> [ 37.140600] rcu-torture:torture_onoff task: offlined 5
> [ 38.140057] rcu-torture:torture_onoff task: offlining 1
> [ 38.195592] smpboot: CPU 1 is now offline
> [ 38.249549] rcu-torture:torture_onoff task: offlined 1
> [ 39.249060] rcu-torture:torture_onoff task: onlining 2
> [ 39.303563] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 39.330313] rcu-torture:torture_onoff task: onlined 2
> [ 40.330013] rcu-torture:torture_onoff task: onlining 7
> [ 40.384528] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 40.410295] rcu-torture:torture_onoff task: onlined 7
> [ 41.410012] rcu-torture:torture_onoff task: onlining 15
> [ 41.445849] smpboot: Booting Node 0 Processor 15 APIC 0xf
> [ 41.595119] rcu-torture:torture_onoff task: onlined 15
> [ 42.595017] rcu-torture:torture_onoff task: onlining 11
> [ 42.640687] smpboot: Booting Node 0 Processor 11 APIC 0xb
> [ 42.897158] rcu-torture:torture_onoff task: onlined 11
> [ 43.918123] rcu-torture:torture_onoff task: offlining 11
> [ 44.002293] smpboot: CPU 11 is now offline
> [ 44.030843] rcu-torture:torture_onoff task: offlined 11
> [ 45.069287] rcu-torture:torture_onoff task: onlining 14
> [ 45.110852] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 45.190158] rcu-torture:torture_onoff task: onlined 14
> [ 46.200280] rcu-torture:torture_onoff task: onlining 3
> [ 46.254642] smpboot: Booting Node 0 Processor 3 APIC 0x3
> [ 46.281296] rcu-torture:torture_onoff task: onlined 3
> [ 47.281108] rcu-torture:torture_onoff task: offlining 12
> [ 47.354083] smpboot: CPU 12 is now offline
> [ 47.408502] rcu-torture:torture_onoff task: offlined 12
> [ 48.409053] rcu-torture:torture_onoff task: offlining 7
> [ 48.468196] smpboot: CPU 7 is now offline
> [ 48.522054] rcu-torture:torture_onoff task: offlined 7
> [ 49.522011] rcu-torture:torture_onoff task: onlining 5
> [ 49.576662] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 49.620233] rcu-torture:torture_onoff task: onlined 5
> [ 50.620020] rcu-torture:torture_onoff task: offlining 5
> [ 50.675691] smpboot: CPU 5 is now offline
> [ 50.730810] rcu-torture:torture_onoff task: offlined 5
> [ 51.731011] rcu-torture:torture_onoff task: onlining 7
> [ 51.755781] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 51.939999] rcu-torture:torture_onoff task: onlined 7
> [ 52.940014] rcu-torture:torture_onoff task: onlining 10
> [ 52.977706] smpboot: Booting Node 0 Processor 10 APIC 0xa
> [ 53.087157] rcu-torture:torture_onoff task: onlined 10
> [ 55.087012] rcu-torture:torture_onoff task: offlining 7
> [ 55.185286] smpboot: CPU 7 is now offline
> [ 55.223166] rcu-torture:torture_onoff task: offlined 7
> [ 57.223027] rcu-torture:torture_onoff task: onlining 9
> [ 57.277812] smpboot: Booting Node 0 Processor 9 APIC 0x9
> [ 57.453204] rcu-torture:torture_onoff task: onlined 9
> [ 58.453025] rcu-torture:torture_onoff task: offlining 4
> [ 58.508771] smpboot: CPU 4 is now offline
> [ 58.563853] rcu-torture:torture_onoff task: offlined 4
> [ 59.564021] rcu-torture:torture_onoff task: offlining 15
> [ 59.619737] smpboot: CPU 15 is now offline
> [ 59.674752] rcu-torture:torture_onoff task: offlined 15
> [ 60.675011] rcu-torture:torture_onoff task: onlining 11
> [ 60.729655] smpboot: Booting Node 0 Processor 11 APIC 0xb
> [ 60.760167] rcu-torture:torture_onoff task: onlined 11
> [ 61.151063] rcu-torture: rtc: ffffffff820d6d90 ver: 486 tfle: 0 rta: 486 rtaf: 0 rtf: 477 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 190132 onoff: 22/22:28/28 35,302:36,248 3043:3316 (HZ=1000) barrier: 0/0:0 cbflood: 111
> [ 61.152622] rcu-torture: Reader Pipe: 1535993020 2788 0 0 0 0 0 0 0 0 0
> [ 61.153284] rcu-torture: Reader Batch: 1498299548 37696260 0 0 0 0 0 0 0 0 0
> [ 61.153956] rcu-torture: Free-Block Circulation: 485 485 484 483 482 481 480 479 478 477 0
> [ 61.761294] rcu-torture:torture_onoff task: onlining 7
> [ 61.775714] smpboot: Booting Node 0 Processor 7 APIC 0x7
> [ 61.863159] rcu-torture:torture_onoff task: onlined 7
> [ 62.863011] rcu-torture:torture_onoff task: onlining 4
> [ 62.871773] smpboot: Booting Node 0 Processor 4 APIC 0x4
> [ 63.031172] rcu-torture:torture_onoff task: onlined 4
> [ 65.031013] rcu-torture:torture_onoff task: onlining 12
> [ 65.080798] smpboot: Booting Node 0 Processor 12 APIC 0xc
> [ 65.275156] rcu-torture:torture_onoff task: onlined 12
> [ 66.275024] rcu-torture:torture_onoff task: offlining 8
> [ 66.389965] smpboot: CPU 8 is now offline
> [ 66.446833] rcu-torture:torture_onoff task: offlined 8
> [ 67.447011] rcu-torture:torture_onoff task: offlining 4
> [ 67.519976] smpboot: CPU 4 is now offline
> [ 67.574933] rcu-torture:torture_onoff task: offlined 4
> [ 68.575012] rcu-torture:torture_onoff task: offlining 14
> [ 68.630792] smpboot: CPU 14 is now offline
> [ 68.685836] rcu-torture:torture_onoff task: offlined 14
> [ 69.686010] rcu-torture:torture_onoff task: onlining 8
> [ 69.740781] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 69.767219] rcu-torture:torture_onoff task: onlined 8
> [ 70.767012] rcu-torture:torture_onoff task: onlining 1
> [ 70.821811] x86: Booting SMP configuration:
> [ 70.822290] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 70.849223] rcu-torture:torture_onoff task: onlined 1
> [ 71.849011] rcu-torture:torture_onoff task: offlining 8
> [ 71.910796] smpboot: CPU 8 is now offline
> [ 71.932831] rcu-torture:torture_onoff task: offlined 8
> [ 72.933011] rcu-torture:torture_onoff task: onlining 14
> [ 72.974767] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 73.058172] rcu-torture:torture_onoff task: onlined 14
> [ 74.058013] rcu-torture:torture_onoff task: offlining 2
> [ 74.109813] smpboot: CPU 2 is now offline
> [ 74.162576] rcu-torture:torture_onoff task: offlined 2
> [ 75.198166] rcu-torture:torture_onoff task: onlining 5
> [ 75.213514] smpboot: Booting Node 0 Processor 5 APIC 0x5
> [ 75.352163] rcu-torture:torture_onoff task: onlined 5
> [ 76.352021] rcu-torture:torture_onoff task: offlining 5
> [ 76.407822] smpboot: CPU 5 is now offline
> [ 76.461629] rcu-torture:torture_onoff task: offlined 5
> [ 77.462018] rcu-torture:torture_onoff task: offlining 3
> [ 77.532054] smpboot: CPU 3 is now offline
> [ 77.586834] rcu-torture:torture_onoff task: offlined 3
> [ 78.587038] rcu-torture:torture_onoff task: onlining 15
> [ 78.660026] smpboot: Booting Node 0 Processor 15 APIC 0xf
> [ 78.710236] rcu-torture:torture_onoff task: onlined 15
> [ 79.710023] rcu-torture:torture_onoff task: onlining 8
> [ 79.764771] smpboot: Booting Node 0 Processor 8 APIC 0x8
> [ 79.816193] rcu-torture:torture_onoff task: onlined 8
> [ 80.817021] rcu-torture:torture_onoff task: offlining 14
> [ 80.889959] smpboot: CPU 14 is now offline
> [ 80.945843] rcu-torture:torture_onoff task: offlined 14
> [ 81.946011] rcu-torture:torture_onoff task: offlining 1
> [ 81.982648] smpboot: CPU 1 is now offline
> [ 82.023787] rcu-torture:torture_onoff task: offlined 1
> [ 83.024014] rcu-torture:torture_onoff task: onlining 2
> [ 83.036513] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 83.227164] rcu-torture:torture_onoff task: onlined 2
> [ 84.227012] rcu-torture:torture_onoff task: onlining 14
> [ 84.247776] smpboot: Booting Node 0 Processor 14 APIC 0xe
> [ 84.339163] rcu-torture:torture_onoff task: onlined 14
> [ 85.339012] rcu-torture:torture_onoff task: offlining 8
> [ 85.420802] smpboot: CPU 8 is now offline
> [ 85.442792] rcu-torture:torture_onoff task: offlined 8
> [ 86.443011] rcu-torture:torture_onoff task: offlining 13
> [ 86.497797] smpboot: CPU 13 is now offline
> [ 86.498352] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 86.499223] IP: [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> [ 86.499255] PGD 0
> [ 86.499255] Oops: 0002 [#1] PREEMPT SMP
> [ 86.499255] Modules linked in:
> [ 86.499255] CPU: 11 PID: 794 Comm: torture_onoff Not tainted 4.5.0-rc1+ #14
> [ 86.499255] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.499255] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
> [ 86.499255] RIP: 0010:[<ffffffff810b9452>] [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> [ 86.499255] RSP: 0000:ffff88007c63fc98 EFLAGS: 00010086
> [ 86.499255] RAX: dead000000000200 RBX: ffff88007fb6cc00 RCX: ffff88007fbacc00
> [ 86.499255] RDX: 0000000000000000 RSI: ffff88007fbad650 RDI: ffff88007fb6cc00
> [ 86.499255] RBP: ffff88007c63fcc0 R08: 0000000000000000 R09: ffffffff81e4d360
> [ 86.499255] R10: 0000000000000000 R11: 0000000000018f70 R12: ffff88007fbad650
> [ 86.499255] R13: ffff88007fb6cc00 R14: 000000000000000b R15: ffff88007fbac420
> [ 86.499255] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 86.509030] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.509030] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.509030] Stack:
> [ 86.509030] ffff88007fb6cc00 ffff88007fbad658 ffff88007fbada50 ffff88007fbad850
> [ 86.509030] ffff88007fbad458 ffff88007c63fd08 ffffffff810b95c4 ffff88007fbacc00
> [ 86.509030] ffff88007fbad648 00000000fffffff0 ffffffff81e4e0c0 0000000000000007
> [ 86.509030] Call Trace:
> [ 86.509030] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 86.509030] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 86.509030] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 86.509030] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 86.509030] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 86.509030] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 86.509030] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 86.509030] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 86.509030] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 86.509030] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 86.509030] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 86.509030] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 86.509030] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.509030] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.509030] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.509030] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.509030] Code: 56 41 55 41 54 53 48 8b 06 44 8b 77 40 48 85 c0 74 53 49 89 fd 49 89 f4 4d 8b 3c 24 66 66 66 66 90 49 8b 07 49 8b 57 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 00 00 00 00 ad de 4c 89
> [ 86.509030] RIP [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> [ 86.509030] RSP <ffff88007c63fc98>
> [ 86.509030] CR2: 0000000000000000
> [ 86.509030] ---[ end trace 68c18a1de6af7dbc ]---
> [ 86.509030] note: torture_onoff[794] exited with preempt_count 3
> [ 86.530564] BUG: spinlock lockup suspected on CPU#11, torture_onoff/794
> [ 86.530564] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/794, .owner_cpu: 11
> [ 86.530564] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] ffff88007fb6cc00 ffff88007fb63e50 ffffffff8132cd6c ffff88007c67a580
> [ 86.530564] ffff88007fb63e70 ffffffff81092fb3 ffff88007fb6cc00 00000000cfbb42a0
> [ 86.530564] ffff88007fb63ea0 ffffffff810930db ffff88007fb6cc00 ffffffff81e080c8
> [ 86.530564] Call Trace:
> [ 86.530564] <IRQ> [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
> [ 86.530564] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
> [ 86.530564] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
> [ 86.530564] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 86.530564] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 86.530564] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 86.530564] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 86.530564] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 86.530564] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 86.530564] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 86.530564] <EOI> [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 86.530564] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 86.530564] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 86.530564] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 86.530564] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 86.530564] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 86.530564] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 86.530564] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 86.530564] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 86.530564] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 86.530564] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 86.530564] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 86.530564] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 86.530564] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 86.530564] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 86.530564] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 86.530564] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 86.530564] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 86.530564] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 86.530564] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 86.530564] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 86.530564] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 86.530564] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 86.530564] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Sending NMI to all CPUs:
> [ 86.530564] NMI backtrace for cpu 0
> [ 86.530564] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007c66be80 ti: ffff88007c660000 task.ti: ffff88007c660000
> [ 86.530564] RIP: 0010:[<ffffffff81339455>] [<ffffffff81339455>] delay_tsc+0x25/0xc0
> [ 86.530564] RSP: 0018:ffff88007c663d00 EFLAGS: 00000002
> [ 86.530564] RAX: 00000000f5d32a52 RBX: ffff88007fbacc00 RCX: 0000000000000002
> [ 86.530564] RDX: 00000000000000b0 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 86.530564] RBP: ffff88007c663d20 R08: ffff88007c660000 R09: ffff88007fbacc00
> [ 86.530564] R10: ffff88007c663e30 R11: 0000000000000001 R12: 00000000aaeed6e6
> [ 86.530564] R13: 0000000000000001 R14: 0000000000000000 R15: ffff88007c663dd0
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 000055f32cd75020 CR3: 0000000001e0f000 CR4: 00000000000006f0
> [ 86.530564] Stack:
> [ 86.530564] ffff88007fbacc00 00000000aaeed6e6 0000000000000001 00000000cfbb42a0
> [ 86.530564] ffff88007c663d30 ffffffff8133930a ffff88007c663d60 ffffffff810930c7
> [ 86.530564] 0000000000000286 ffff88007fbacc00 ffff88007fbacc00 000000000000cc00
> [ 86.530564] Call Trace:
> [ 86.530564] [<ffffffff8133930a>] __delay+0xa/0x10
> [ 86.530564] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 86.530564] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 86.530564] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 86.530564] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 86.530564] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 86.530564] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Code: 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 <48> c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43
> [ 86.530564] NMI backtrace for cpu 2
> [ 86.530564] CPU: 2 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007cb24b00 ti: ffff88007c680000 task.ti: ffff88007c680000
> [ 86.530564] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
> [ 86.530564] RSP: 0018:ffff88007c683db0 EFLAGS: 00000286
> [ 86.530564] RAX: 0000000080000000 RBX: 000000b0f5d35a78 RCX: 0000000000000001
> [ 86.530564] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
> [ 86.530564] RBP: ffff88007c683dd0 R08: ffff88007c680000 R09: 0000000000000002
> [ 86.530564] R10: 0000000000000000 R11: 0000000000000001 R12: 000000b0f5a85ab0
> [ 86.530564] R13: 0000000000351e94 R14: 0000000000000002 R15: ffffffff820d5fe0
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.530564] Stack:
> [ 86.530564] 0000000000000008 ffff88007c683e20 00000032bf972035 000000000000046f
> [ 86.530564] ffff88007c683de0 ffffffff81339337 ffff88007c683e00 ffffffff810add86
> [ 86.530564] 0000000000000000 0000000000000000 ffff88007c683ea8 ffffffff810ad458
> [ 86.530564] Call Trace:
> [ 86.530564] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 86.530564] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 86.530564] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
> [ 86.530564] NMI backtrace for cpu 6
> [ 86.530564] CPU: 6 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007cb22580 ti: ffff88007c624000 task.ti: ffff88007c624000
> [ 86.530564] RIP: 0010:[<ffffffff810ad462>] [<ffffffff810ad462>] rcu_torture_reader+0x1b2/0x2e0
> [ 86.530564] RSP: 0018:ffff88007c627e10 EFLAGS: 00000246
> [ 86.530564] RAX: ffff88007cb22580 RBX: 0000000000000000 RCX: 00000000000493e0
> [ 86.530564] RDX: 0000000000000000 RSI: ffff88007fad27d8 RDI: ffffffff810732f6
> [ 86.530564] RBP: ffff88007c627ea8 R08: ffff88007c624000 R09: ffff88007fad53f0
> [ 86.530564] R10: ffff88007c627e30 R11: 000000000000005a R12: 0000000000000000
> [ 86.530564] R13: 00000032c47cf773 R14: 000000000000046f R15: ffffffff820d5fe0
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.530564] Stack:
> [ 86.530564] 0000000000000000 0000000081a0a240 41b2bee7f92fd497 0000000000001179
> [ 86.530564] ffff88007cc53d40 ffff88007c50bdf0 00000000fffcd063 ffffffff810ad590
> [ 86.530564] 0000000000000000 ffffffff00000006 00000000ffffffff 0000000000000000
> [ 86.530564] Call Trace:
> [ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Code: 00 00 00 41 8b 4f 28 85 c9 75 07 f0 ff 05 13 8a 02 01 48 8b 05 80 89 02 01 48 8d 7c 24 10 ff 50 20 bf 01 00 00 00 e8 4e ac fc ff <4d> 63 67 10 48 8b 05 63 89 02 01 41 83 fc 0a 0f 8e ca fe ff ff
> [ 86.530564] NMI backtrace for cpu 7
> [ 86.530564] CPU: 7 PID: 788 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007cb25780 ti: ffff88007c684000 task.ti: ffff88007c684000
> [ 86.530564] RIP: 0010:[<ffffffff81091ab0>] [<ffffffff81091ab0>] in_lock_functions+0x0/0x20
> [ 86.530564] RSP: 0018:ffff88007c687df0 EFLAGS: 00000246
> [ 86.530564] RAX: ffff88007c687ea8 RBX: ffffffff810732f6 RCX: 00000000000493e0
> [ 86.530564] RDX: 0000000000000000 RSI: ffff88007faf27d8 RDI: ffffffff810732f6
> [ 86.530564] RBP: ffff88007c687e00 R08: ffff88007c684000 R09: ffff88007faf53f0
> [ 86.530564] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
> [ 86.530564] R13: 00000032c47d0479 R14: 000000000000046f R15: ffffffff820d5fe0
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.530564] Stack:
> [ 86.530564] ffffffff81078130 0000000000000000 ffff88007c687ea8 ffffffff810ad462
> [ 86.530564] 0000000000000000 0000000081a0a240 80b0c9268da6f193 0000000000000081
> [ 86.530564] 0000000000000000 ffff88007c623e30 00000000fffcd063 ffffffff810ad590
> [ 86.530564] Call Trace:
> [ 86.530564] [<ffffffff81078130>] ? preempt_count_add+0x80/0xc0
> [ 86.530564] [<ffffffff810ad462>] rcu_torture_reader+0x1b2/0x2e0
> [ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Code: 81 48 c7 c2 1e 0a c9 81 be 4b 00 00 00 48 c7 c7 18 e1 c9 81 e8 d2 56 fc ff eb 80 55 48 89 7f 38 48 89 e5 5d c3 66 0f 1f 44 00 00 <55> 31 c0 48 81 ff c0 3f 8b 81 48 89 e5 72 0c 31 c0 48 81 ff fa
> [ 86.530564] NMI backtrace for cpu 9
> [ 86.530564] CPU: 9 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007c66a580 ti: ffff88007c654000 task.ti: ffff88007c654000
> [ 86.530564] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
> [ 86.530564] RSP: 0018:ffff88007c657db0 EFLAGS: 00000286
> [ 86.530564] RAX: 0000000080000000 RBX: 000000b0f5d3e3fa RCX: 0000000000000001
> [ 86.530564] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
> [ 86.530564] RBP: ffff88007c657dd0 R08: ffff88007c654000 R09: ffff88007fb353f0
> [ 86.530564] R10: ffff88007c657e30 R11: 0000000000000078 R12: 000000b0f5b422be
> [ 86.530564] R13: 0000000000351e15 R14: 0000000000000009 R15: ffffffff820d5fe0
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fb20000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 000055f32cd5f720 CR3: 000000007b0a0000 CR4: 00000000000006e0
> [ 86.530564] Stack:
> [ 86.530564] 000000000000001c ffff88007c657e20 00000032c322cb52 000000000000046f
> [ 86.530564] ffff88007c657de0 ffffffff81339337 ffff88007c657e00 ffffffff810add86
> [ 86.530564] 0000000000000000 0000000000000000 ffff88007c657ea8 ffffffff810ad458
> [ 86.530564] Call Trace:
> [ 86.530564] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 86.530564] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 86.530564] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
> [ 86.530564] NMI backtrace for cpu 10
> [ 86.530564] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007cc98c80 ti: ffff88007cca4000 task.ti: ffff88007cca4000
> [ 86.530564] RIP: 0010:[<ffffffff8133947a>] [<ffffffff8133947a>] delay_tsc+0x4a/0xc0
> [ 86.530564] RSP: 0018:ffff88007fb43d78 EFLAGS: 00000002
> [ 86.530564] RAX: 00000000f5d4115e RBX: ffff88007fb6cc00 RCX: 0000000000000104
> [ 86.530564] RDX: 000000b0f5d4115e RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 86.530564] RBP: ffff88007fb43d98 R08: 0000000000000000 R09: 000000000000dec5
> [ 86.530564] R10: 00000000034dd705 R11: 0000000002f96dbb R12: 000000b0f5d4115e
> [ 86.530564] R13: 0000000000000001 R14: 000000000000000a R15: 0000000000000000
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.530564] Stack:
> [ 86.530564] ffff88007fb6cc00 00000000b85120e5 0000000000000001 00000000cfbb42a0
> [ 86.530564] ffff88007fb43da8 ffffffff8133930a ffff88007fb43dd8 ffffffff810930c7
> [ 86.530564] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000
> [ 86.530564] Call Trace:
> [ 86.530564] <IRQ> \x01d [<ffffffff8133930a>] __delay+0xa/0x10
> [ 86.530564] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 86.530564] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 86.530564] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 86.530564] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 86.530564] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 86.530564] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 86.530564] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 86.530564] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 86.530564] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 86.530564] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 86.530564] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 86.530564] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 86.530564] <EOI> \x01d [<ffffffff8100f303>] ? default_idle+0x13/0xd0
> [ 86.530564] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
> [ 86.530564] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
> [ 86.530564] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
> [ 86.530564] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
> [ 86.530564] Code: c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f ae e8 <0f> 31 48 c1 e2 20 48 89 d3 48 09 c3 48 89 d8 4c 29 e0 49 39 c5
> [ 86.530564] NMI backtrace for cpu 11
> [ 86.530564] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
> [ 86.530564] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
> [ 86.530564] RSP: 0000:ffff88007fb63dd0 EFLAGS: 00000046
> [ 86.530564] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000b
> [ 86.530564] RDX: 000000000000000b RSI: 0000000000000010 RDI: 0000000000000300
> [ 86.530564] RBP: ffff88007fb63e08 R08: 0000000000000000 R09: 000000000000dec5
> [ 86.530564] R10: ffff88007c63ff58 R11: 00000000000002cd R12: ffffffff81f31740
> [ 86.530564] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000b
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.530564] Stack:
> [ 86.530564] 0000000000000082 0000000b7fb63de0 000000000000ff40 0000000000000001
> [ 86.530564] ffffffff8103fd20 00000000cfbb42a0 0000000000000000 ffff88007fb63e18
> [ 86.530564] ffffffff8103fd36 ffff88007fb63e60 ffffffff81331299 ffffffff81008b50
> [ 86.530564] Call Trace:
> [ 86.530564] <IRQ> \x01d [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
> [ 86.530564] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
> [ 86.530564] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
> [ 86.530564] [<ffffffff81008b50>] ? show_stack+0x20/0x50
> [ 86.530564] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
> [ 86.530564] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
> [ 86.530564] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 86.530564] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 86.530564] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 86.530564] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 86.530564] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 86.530564] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 86.530564] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 86.530564] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 86.530564] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 86.530564] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 86.530564] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 86.530564] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 86.530564] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 86.530564] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 86.530564] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 86.530564] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 86.530564] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 86.530564] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 86.530564] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 86.530564] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 86.530564] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 86.530564] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 86.530564] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 86.530564] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 86.530564] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 86.530564] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 86.530564] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 86.530564] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 86.530564] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 86.530564] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 86.530564] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
> [ 86.530564] NMI backtrace for cpu 12
> [ 86.530564] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007cb27080 ti: ffff88007c674000 task.ti: ffff88007c674000
> [ 86.530564] RIP: 0010:[<ffffffff81339453>] [<ffffffff81339453>] delay_tsc+0x23/0xc0
> [ 86.530564] RSP: 0000:ffff88007c677d00 EFLAGS: 00000002
> [ 86.530564] RAX: 000000000000000c RBX: ffff88007fb6cc00 RCX: 0000000000000002
> [ 86.530564] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 86.530564] RBP: ffff88007c677d20 R08: ffff88007c674000 R09: ffff88007fb6cc00
> [ 86.530564] R10: ffff88007c677e30 R11: 000000000000002d R12: 00000000ab555708
> [ 86.530564] R13: 0000000000000001 R14: 000000000000000c R15: ffff88007c677dd0
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.530564] Stack:
> [ 86.530564] ffff88007fb6cc00 00000000ab555708 0000000000000001 00000000cfbb42a0
> [ 86.530564] ffff88007c677d30 ffffffff8133930a ffff88007c677d60 ffffffff810930c7
> [ 86.530564] 0000000000000286 ffff88007fb6cc00 ffff88007fb6cc00 000000000000cc00
> [ 86.530564] Call Trace:
> [ 86.530564] [<ffffffff8133930a>] __delay+0xa/0x10
> [ 86.530564] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 86.530564] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 86.530564] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 86.530564] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 86.530564] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 86.530564] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Code: 5d 41 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 <0f> 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00
> [ 86.530564] NMI backtrace for cpu 14
> [ 86.530564] CPU: 14 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007cb26400 ti: ffff88007c670000 task.ti: ffff88007c670000
> [ 86.530564] RIP: 0010:[<ffffffff810acb70>] [<ffffffff810acb70>] rcu_torture_read_lock+0x0/0x10
> [ 86.530564] RSP: 0018:ffff88007c673e08 EFLAGS: 00000286
> [ 86.530564] RAX: ffffffff81e47800 RBX: 0000000000000000 RCX: 0000000000000001
> [ 86.530564] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff81c9f0eb
> [ 86.530564] RBP: ffff88007c673ea8 R08: ffff88007c670000 R09: 0000000000000002
> [ 86.530564] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
> [ 86.530564] R13: 00000032c47e38a4 R14: 000000000000046f R15: ffffffff820d5fe0
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.530564] Stack:
> [ 86.530564] ffffffff810ad405 0000000000000000 0000000000015380 c7b7bbe7a8e3038e
> [ 86.530564] 0000000000000b1c ffff88007cbbbe30 ffff88007c5f3e30 00000000fffcd063
> [ 86.530564] ffffffff810ad590 0000000000000000 ffffffff0000000e 00000000ffffffff
> [ 86.530564] Call Trace:
> [ 86.530564] [<ffffffff810ad405>] ? rcu_torture_reader+0x155/0x2e0
> [ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Code: 48 8d 3c 13 48 8b 0c 11 48 8b 14 37 89 c6 48 c7 c7 4c f0 c9 81 e8 70 ac 07 00 eb 94 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 e8 47 b1 ff ff 31 c0 5d c3 0f 1f 00 80 3d e1 ad d9
> [ 86.530564] NMI backtrace for cpu 15
> [ 86.530564] CPU: 15 PID: 778 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.530564] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.530564] task: ffff88007c66d780 ti: ffff88007c664000 task.ti: ffff88007c664000
> [ 86.530564] RIP: 0010:[<ffffffff810addac>] [<ffffffff810addac>] rcu_read_delay+0x5c/0xb0
> [ 86.530564] RSP: 0018:ffff88007c667df0 EFLAGS: 00000202
> [ 86.530564] RAX: 00000000000970a2 RBX: 0000000000000000 RCX: 0000000000001770
> [ 86.530564] RDX: 000000000000087c RSI: ffff88007fbf27d8 RDI: ffff88007c667e20
> [ 86.530564] RBP: ffff88007c667e00 R08: ffff88007c664000 R09: ffff88007fbf53f0
> [ 86.530564] R10: ffff88007c667e30 R11: 0000000000000001 R12: ffff88007c667e20
> [ 86.530564] R13: 00000032c47e463e R14: 000000000000046f R15: ffffffff820d5fe0
> [ 86.530564] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
> [ 86.530564] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.530564] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.530564] Stack:
> [ 86.530564] 0000000000000000 0000000000000000 ffff88007c667ea8 ffffffff810ad458
> [ 86.530564] 0000000000000000 0000000081a0a240 7de1a6dcdd5cdd3f 000000000000140e
> [ 86.530564] ffff88007c5e3de0 ffff88007fbecf60 00000000fffcd063 ffffffff810ad590
> [ 86.530564] Call Trace:
> [ 86.530564] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 86.530564] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.530564] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.530564] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.530564] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.530564] Code: e8 8a b5 28 00 48 83 eb 01 75 f0 4c 89 e7 e8 6c 83 07 00 48 63 15 d9 94 02 01 48 8d 14 92 48 8d 0c 92 31 d2 48 c1 e1 04 48 f7 f1 <48> 85 d2 74 3c 65 8b 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41
> [ 86.637011] BUG: spinlock lockup suspected on CPU#10, swapper/10/0
> [ 86.637011] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/794, .owner_cpu: 11
> [ 86.637011] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] ffff88007fb6cc00 ffff88007fb43d88 ffffffff8132cd6c ffff88007c67a580
> [ 86.637011] ffff88007fb43da8 ffffffff81092fb3 ffff88007fb6cc00 00000000cfbb42a0
> [ 86.637011] ffff88007fb43dd8 ffffffff810930db ffff88007fb6cc00 ffffffff820d8c80
> [ 86.637011] Call Trace:
> [ 86.637011] <IRQ> [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
> [ 86.637011] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
> [ 86.637011] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
> [ 86.637011] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 86.637011] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 86.637011] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 86.637011] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 86.637011] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 86.637011] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 86.637011] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 86.637011] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 86.637011] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 86.637011] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 86.637011] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 86.637011] <EOI> [<ffffffff8100f303>] ? default_idle+0x13/0xd0
> [ 86.637011] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
> [ 86.637011] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
> [ 86.637011] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
> [ 86.637011] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
> [ 86.637011] Sending NMI to all CPUs:
> [ 86.637011] NMI backtrace for cpu 0
> [ 86.637011] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007c66be80 ti: ffff88007c660000 task.ti: ffff88007c660000
> [ 86.637011] RIP: 0010:[<ffffffff81339453>] [<ffffffff81339453>] delay_tsc+0x23/0xc0
> [ 86.637011] RSP: 0018:ffff88007c663d00 EFLAGS: 00000002
> [ 86.637011] RAX: 0000000000000000 RBX: ffff88007fbacc00 RCX: 0000000000000002
> [ 86.637011] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 86.637011] RBP: ffff88007c663d20 R08: ffff88007c660000 R09: ffff88007fbacc00
> [ 86.637011] R10: ffff88007c663e30 R11: 0000000000000001 R12: 00000000bfcdebc0
> [ 86.637011] R13: 0000000000000001 R14: 0000000000000000 R15: ffff88007c663dd0
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 000055f32cd75020 CR3: 0000000001e0f000 CR4: 00000000000006f0
> [ 86.637011] Stack:
> [ 86.637011] ffff88007fbacc00 00000000bfcdebc0 0000000000000001 00000000cfbb42a0
> [ 86.637011] ffff88007c663d30 ffffffff8133930a ffff88007c663d60 ffffffff810930c7
> [ 86.637011] 0000000000000286 ffff88007fbacc00 ffff88007fbacc00 000000000000cc00
> [ 86.637011] Call Trace:
> [ 86.637011] [<ffffffff8133930a>] __delay+0xa/0x10
> [ 86.637011] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 86.637011] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 86.637011] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 86.637011] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 86.637011] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 86.637011] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] Code: 5d 41 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 <0f> 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00
> [ 86.637011] NMI backtrace for cpu 2
> [ 86.637011] CPU: 2 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007cb24b00 ti: ffff88007c680000 task.ti: ffff88007c680000
> [ 86.637011] RIP: 0010:[<ffffffff810780b0>] [<ffffffff810780b0>] preempt_count_add+0x0/0xc0
> [ 86.637011] RSP: 0018:ffff88007c683da8 EFLAGS: 00000286
> [ 86.637011] RAX: 0000000080000000 RBX: 000000bbab34b2ec RCX: 0000000000000001
> [ 86.637011] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 0000000000000001
> [ 86.637011] RBP: ffff88007c683dd0 R08: ffff88007c680000 R09: ffff88007fa553f0
> [ 86.637011] R10: 0000000000000000 R11: 0000000000000001 R12: 000000bbab1b5ef0
> [ 86.637011] R13: 0000000000351e94 R14: 0000000000000002 R15: ffffffff820d5fe0
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.637011] Stack:
> [ 86.637011] ffffffff8133946d 0000000000000006 ffff88007c683e20 00000035d5ff8437
> [ 86.637011] 000000000000046f ffff88007c683de0 ffffffff81339337 ffff88007c683e00
> [ 86.637011] ffffffff810add86 0000000000000000 0000000000000000 ffff88007c683ea8
> [ 86.637011] Call Trace:
> [ 86.637011] [<ffffffff8133946d>] ? delay_tsc+0x3d/0xc0
> [ 86.637011] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 86.637011] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 86.637011] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] Code: 3d ba b3 e9 00 00 75 b4 be 44 01 00 00 48 c7 c7 fb dd c9 81 e8 72 f1 fd ff c6 05 a0 b3 e9 00 01 eb 9a 66 0f 1f 84 00 00 00 00 00 <8b> 15 02 a7 01 01 55 65 01 3d d2 2c f9 7e 48 89 e5 53 89 fb 85
> [ 86.637011] NMI backtrace for cpu 6
> [ 86.637011] CPU: 6 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007cb22580 ti: ffff88007c624000 task.ti: ffff88007c624000
> [ 86.637011] RIP: 0010:[<ffffffff810addac>] [<ffffffff810addac>] rcu_read_delay+0x5c/0xb0
> [ 86.637011] RSP: 0018:ffff88007c627df0 EFLAGS: 00000202
> [ 86.637011] RAX: 000000000005640c RBX: 0000000000000000 RCX: 0000000000001770
> [ 86.637011] RDX: 0000000000000b4f RSI: ffff88007fad27d8 RDI: ffff88007c627e20
> [ 86.637011] RBP: ffff88007c627e00 R08: ffff88007c624000 R09: ffff88007fad53f0
> [ 86.637011] R10: ffff88007c627e30 R11: 000000000000005a R12: ffff88007c627e20
> [ 86.637011] R13: 00000035db3bb386 R14: 000000000000046f R15: ffffffff820d5fe0
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.637011] Stack:
> [ 86.637011] 0000000000000000 0000000000000000 ffff88007c627ea8 ffffffff810ad458
> [ 86.637011] 0000000000000000 0000000081a0a240 770957c6e48f7e58 00000000000011d6
> [ 86.637011] ffff88007cc53d40 ffff88007c50bdf0 00000000fffcd063 ffffffff810ad590
> [ 86.637011] Call Trace:
> [ 86.637011] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] Code: e8 8a b5 28 00 48 83 eb 01 75 f0 4c 89 e7 e8 6c 83 07 00 48 63 15 d9 94 02 01 48 8d 14 92 48 8d 0c 92 31 d2 48 c1 e1 04 48 f7 f1 <48> 85 d2 74 3c 65 8b 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41
> [ 86.637011] NMI backtrace for cpu 7
> [ 86.637011] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007cb21900 ti: ffff88007c620000 task.ti: ffff88007c620000
> [ 86.637011] RIP: 0010:[<ffffffff81347fe8>] [<ffffffff81347fe8>] check_preemption_disabled+0x8/0xe0
> [ 86.637011] RSP: 0018:ffff88007c623d90 EFLAGS: 00000246
> [ 86.637011] RAX: 0000000080000001 RBX: 000000bbab350fbc RCX: 0000000000000001
> [ 86.637011] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 86.637011] RBP: ffff88007c623da0 R08: ffff88007c620000 R09: 0000000000000002
> [ 86.637011] R10: 0000000000000000 R11: 0000000000000001 R12: 000000bbab33726c
> [ 86.637011] R13: 00000000000a9fc1 R14: 0000000000000007 R15: ffffffff820d5fe0
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.637011] Stack:
> [ 86.637011] ffff88007c623da0 ffffffff813480d7 ffff88007c623dd0 ffffffff81339472
> [ 86.637011] 0000000000000000 ffff88007c623e20 00000035db3b4939 000000000000046f
> [ 86.637011] ffff88007c623de0 ffffffff81339337 ffff88007c623e00 ffffffff810addf7
> [ 86.637011] Call Trace:
> [ 86.637011] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 86.637011] [<ffffffff81339472>] delay_tsc+0x42/0xc0
> [ 86.637011] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 86.637011] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
> [ 86.637011] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] Code: 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 65 8b 05 a8 2d cc 7e <48> 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff
> [ 86.637011] NMI backtrace for cpu 9
> [ 86.637011] CPU: 9 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007c66a580 ti: ffff88007c654000 task.ti: ffff88007c654000
> [ 86.637011] RIP: 0010:[<ffffffff810ad367>] [<ffffffff810ad367>] rcu_torture_reader+0xb7/0x2e0
> [ 86.637011] RSP: 0018:ffff88007c657e10 EFLAGS: 00000202
> [ 86.637011] RAX: ffffffff81e47800 RBX: ffffffffffffffff RCX: 00000000000493e0
> [ 86.637011] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81cbdff8
> [ 86.637011] RBP: ffff88007c657ea8 R08: ffff88007c654000 R09: ffff88007fb353f0
> [ 86.637011] R10: ffff88007c657e30 R11: 0000000000000078 R12: 0000000000000000
> [ 86.637011] R13: 00000035db3bcddb R14: 000000000000046f R15: ffffffff820d5fe0
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fb20000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 000055f32cd5f720 CR3: 000000007b0a0000 CR4: 00000000000006e0
> [ 86.637011] Stack:
> [ 86.637011] 0000000000000000 0000000081a0a240 65698c08e52fd545 0000000000000aad
> [ 86.637011] 0000000000000000 ffff88007fb2cf60 00000000fffcd063 ffffffff810ad590
> [ 86.637011] 0000000000000000 ffffffff00000009 00000000ffffffff 0000000000000000
> [ 86.637011] Call Trace:
> [ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] Code: e9 9a 00 00 00 ff 50 38 41 83 fc 01 48 89 c3 0f 8f 32 01 00 00 48 c7 c7 59 97 d2 81 4c 29 f3 e8 80 ad 29 00 48 8b 05 69 8a 02 01 <48> c7 c7 59 97 d2 81 65 4a ff 04 e5 40 cb 00 00 48 83 78 30 01
> [ 86.637011] NMI backtrace for cpu 10
> [ 86.637011] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007cc98c80 ti: ffff88007cca4000 task.ti: ffff88007cca4000
> [ 86.637011] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
> [ 86.637011] RSP: 0018:ffff88007fb43d08 EFLAGS: 00000046
> [ 86.637011] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000a
> [ 86.637011] RDX: 000000000000000a RSI: 0000000000000010 RDI: 0000000000000300
> [ 86.637011] RBP: ffff88007fb43d40 R08: 0000000000000000 R09: 000000000000dec5
> [ 86.637011] R10: ffff88007cca7f58 R11: 0000000000000434 R12: ffffffff81f31740
> [ 86.637011] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000a
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.637011] Stack:
> [ 86.637011] 0000000000000082 0000000a7fb43d18 000000000000ff40 0000000000000001
> [ 86.637011] ffffffff8103fd20 00000000cfbb42a0 0000000000000000 ffff88007fb43d50
> [ 86.637011] ffffffff8103fd36 ffff88007fb43d98 ffffffff81331299 ffffffff81008b50
> [ 86.637011] Call Trace:
> [ 86.637011] <IRQ> \x01d [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
> [ 86.637011] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
> [ 86.637011] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
> [ 86.637011] [<ffffffff81008b50>] ? show_stack+0x20/0x50
> [ 86.637011] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
> [ 86.637011] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
> [ 86.637011] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 86.637011] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 86.637011] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 86.637011] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 86.637011] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 86.637011] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 86.637011] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 86.637011] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 86.637011] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 86.637011] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 86.637011] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 86.637011] <EOI> \x01d [<ffffffff8100f303>] ? default_idle+0x13/0xd0
> [ 86.637011] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
> [ 86.637011] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
> [ 86.637011] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
> [ 86.637011] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
> [ 86.637011] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
> [ 86.637011] NMI backtrace for cpu 11
> [ 86.637011] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
> [ 86.637011] RIP: 0010:[<ffffffff810920b1>] [<ffffffff810920b1>] queued_spin_lock_slowpath+0x171/0x1a0
> [ 86.637011] RSP: 0000:ffff88007fb63e58 EFLAGS: 00000002
> [ 86.637011] RAX: 0000000000000101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
> [ 86.637011] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
> [ 86.637011] RBP: ffff88007fb63e70 R08: 00000000000006e7 R09: 0000000000000418
> [ 86.637011] R10: ffff88007c63ff58 R11: 0000000000000418 R12: 00000000cfbb42a0
> [ 86.637011] R13: 0000000000000001 R14: 00000000cfbb42a0 R15: 0000000000000000
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.637011] Stack:
> [ 86.637011] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb63ea0
> [ 86.637011] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
> [ 86.637011] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
> [ 86.637011] Call Trace:
> [ 86.637011] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 86.637011] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 86.637011] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 86.637011] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 86.637011] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 86.637011] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 86.637011] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 86.637011] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 86.637011] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 86.637011] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 86.637011] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 86.637011] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 86.637011] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 86.637011] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 86.637011] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 86.637011] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 86.637011] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 86.637011] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 86.637011] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 86.637011] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 86.637011] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 86.637011] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 86.637011] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 86.637011] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 86.637011] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 86.637011] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 86.637011] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 86.637011] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 86.637011] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 86.637011] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 86.637011] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 86.637011] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] Code: d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 8b 03 <84> c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 f3 90
> [ 86.637011] NMI backtrace for cpu 12
> [ 86.637011] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007cb27080 ti: ffff88007c674000 task.ti: ffff88007c674000
> [ 86.637011] RIP: 0010:[<ffffffff81339453>] [<ffffffff81339453>] delay_tsc+0x23/0xc0
> [ 86.637011] RSP: 0000:ffff88007c677d00 EFLAGS: 00000002
> [ 86.637011] RAX: 000000000000000c RBX: ffff88007fb6cc00 RCX: 0000000000000002
> [ 86.637011] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 86.637011] RBP: ffff88007c677d20 R08: ffff88007c674000 R09: ffff88007fb6cc00
> [ 86.637011] R10: ffff88007c677e30 R11: 000000000000002d R12: 00000000bc78e940
> [ 86.637011] R13: 0000000000000001 R14: 000000000000000c R15: ffff88007c677dd0
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.637011] Stack:
> [ 86.637011] ffff88007fb6cc00 00000000bc78e940 0000000000000001 00000000cfbb42a0
> [ 86.637011] ffff88007c677d30 ffffffff8133930a ffff88007c677d60 ffffffff810930c7
> [ 86.637011] 0000000000000286 ffff88007fb6cc00 ffff88007fb6cc00 000000000000cc00
> [ 86.637011] Call Trace:
> [ 86.637011] [<ffffffff8133930a>] __delay+0xa/0x10
> [ 86.637011] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 86.637011] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 86.637011] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 86.637011] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 86.637011] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 86.637011] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] Code: 5d 41 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 <0f> 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00
> [ 86.637011] NMI backtrace for cpu 14
> [ 86.637011] CPU: 14 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007cb20000 ti: ffff88007c5f0000 task.ti: ffff88007c5f0000
> [ 86.637011] RIP: 0010:[<ffffffff8133947c>] [<ffffffff8133947c>] delay_tsc+0x4c/0xc0
> [ 86.637011] RSP: 0018:ffff88007c5f3db0 EFLAGS: 00000246
> [ 86.637011] RAX: 00000000ab382c5e RBX: 000000bbab382bb2 RCX: 0000000000000001
> [ 86.637011] RDX: 00000000000000bb RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 86.637011] RBP: ffff88007c5f3dd0 R08: ffff88007c5f0000 R09: 0000000000000002
> [ 86.637011] R10: 0000000000000000 R11: 0000000000000001 R12: 000000bbab1b3e52
> [ 86.637011] R13: 0000000000352dff R14: 000000000000000e R15: ffffffff820d5fe0
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.637011] Stack:
> [ 86.637011] 000000000000000a ffff88007c5f3e20 00000035d411b4b5 000000000000046f
> [ 86.637011] ffff88007c5f3de0 ffffffff81339337 ffff88007c5f3e00 ffffffff810add86
> [ 86.637011] 0000000000000000 0000000000000000 ffff88007c5f3ea8 ffffffff810ad458
> [ 86.637011] Call Trace:
> [ 86.637011] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 86.637011] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 86.637011] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] Code: ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f ae e8 0f 31 <48> c1 e2 20 48 89 d3 48 09 c3 48 89 d8 4c 29 e0 49 39 c5 76 24
> [ 86.637011] NMI backtrace for cpu 15
> [ 86.637011] CPU: 15 PID: 778 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 86.637011] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 86.637011] task: ffff88007c66d780 ti: ffff88007c664000 task.ti: ffff88007c664000
> [ 86.637011] RIP: 0010:[<ffffffff81347fe1>] [<ffffffff81347fe1>] check_preemption_disabled+0x1/0xe0
> [ 86.637011] RSP: 0018:ffff88007c667df0 EFLAGS: 00000246
> [ 86.637011] RAX: ffffffff81e47800 RBX: 0000000000000000 RCX: 00000000000493e0
> [ 86.637011] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81cbdff8
> [ 86.637011] RBP: ffff88007c667e00 R08: ffff88007c664000 R09: ffff88007fbf53f0
> [ 86.637011] R10: ffff88007c667e30 R11: 0000000000000001 R12: 0000000000000000
> [ 86.637011] R13: 00000035db3cb383 R14: 000000000000046f R15: ffffffff820d5fe0
> [ 86.637011] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
> [ 86.637011] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 86.637011] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 86.637011] Stack:
> [ 86.637011] ffff88007c667e00 ffffffff813480f3 ffff88007c667ea8 ffffffff810ad385
> [ 86.637011] 0000000000000000 0000000081a0a240 294a84bcaaa92a92 0000000000000890
> [ 86.637011] ffff88007c5e3de0 ffff88007fbecf60 00000000fffcd063 ffffffff810ad590
> [ 86.637011] Call Trace:
> [ 86.637011] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
> [ 86.637011] [<ffffffff810ad385>] rcu_torture_reader+0xd5/0x2e0
> [ 86.637011] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 86.637011] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 86.637011] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 86.637011] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 86.637011] Code: 00 00 00 49 89 f7 c7 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 <65> 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 41 54 53 65 8b 1d 27
> [ 91.202005] BUG: spinlock lockup suspected on CPU#0, rcu_torture_rea/777
> [ 91.202005] lock: 0xffff88007fbacc00, .magic: dead4ead, .owner: torture_onoff/794, .owner_cpu: 11
> [ 91.202005] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] ffff88007fbacc00 ffff88007c663d10 ffffffff8132cd6c ffff88007c67a580
> [ 91.202005] ffff88007c663d30 ffffffff81092fb3 ffff88007fbacc00 00000000cfbb42a0
> [ 91.202005] ffff88007c663d60 ffffffff810930db 0000000000000286 ffff88007fbacc00
> [ 91.202005] Call Trace:
> [ 91.202005] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
> [ 91.202005] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
> [ 91.202005] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
> [ 91.202005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 91.202005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 91.202005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 91.202005] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 91.202005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Sending NMI to all CPUs:
> [ 91.202005] NMI backtrace for cpu 0
> [ 91.202005] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007c66be80 ti: ffff88007c660000 task.ti: ffff88007c660000
> [ 91.202005] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
> [ 91.202005] RSP: 0018:ffff88007c663c90 EFLAGS: 00000046
> [ 91.202005] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000000
> [ 91.202005] RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000300
> [ 91.202005] RBP: ffff88007c663cc8 R08: 0000000000000000 R09: 000000000000dec5
> [ 91.202005] R10: ffff88007c663f58 R11: 000000000000059a R12: ffffffff81f31740
> [ 91.202005] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000000
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 000055f32cd75020 CR3: 0000000001e0f000 CR4: 00000000000006f0
> [ 91.202005] Stack:
> [ 91.202005] 0000000000000086 000000007c663ca0 000000000000ff40 0000000000000001
> [ 91.202005] ffffffff8103fd20 00000000cfbb42a0 ffff88007c663dd0 ffff88007c663cd8
> [ 91.202005] ffffffff8103fd36 ffff88007c663d20 ffffffff81331299 ffffffff81008b50
> [ 91.202005] Call Trace:
> [ 91.202005] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
> [ 91.202005] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
> [ 91.202005] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
> [ 91.202005] [<ffffffff81008b50>] ? show_stack+0x20/0x50
> [ 91.202005] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
> [ 91.202005] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
> [ 91.202005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 91.202005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 91.202005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 91.202005] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 91.202005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
> [ 91.202005] NMI backtrace for cpu 2
> [ 91.202005] CPU: 2 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007cb24b00 ti: ffff88007c680000 task.ti: ffff88007c680000
> [ 91.202005] RIP: 0010:[<ffffffff8112610e>] [<ffffffff8112610e>] torture_random+0xe/0x50
> [ 91.202005] RSP: 0018:ffff88007c683de8 EFLAGS: 00000a03
> [ 91.202005] RAX: 5a933880b777f184 RBX: 0000000000000000 RCX: 0000000000000001
> [ 91.202005] RDX: 0000000000000000 RSI: ffff88007fa527d8 RDI: ffff88007c683e20
> [ 91.202005] RBP: ffff88007c683e00 R08: ffff88007c680000 R09: 0000000000000002
> [ 91.202005] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88007c683e20
> [ 91.202005] R13: 00000037e5c0c22c R14: 000000000000046f R15: ffffffff820d5fe0
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202005] Stack:
> [ 91.202005] ffffffff810add5f 0000000000000000 0000000000000000 ffff88007c683ea8
> [ 91.202005] ffffffff810ad458 0000000000000000 0000000081a0a240 eecf9ea3d6081d84
> [ 91.202005] 0000000000001e73 ffff88007c5e7e30 ffff88007fa4cf60 00000000fffcd063
> [ 91.202005] Call Trace:
> [ 91.202005] [<ffffffff810add5f>] ? rcu_read_delay+0xf/0xb0
> [ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Code: b2 fd 00 48 c7 c7 69 ef c9 81 e8 dd 16 00 00 48 8b 03 eb d5 66 0f 1f 84 00 00 00 00 00 48 83 6f 08 01 78 14 48 69 07 01 15 61 02 <48> 05 65 fc 8c 1c 48 89 07 c1 c0 10 c3 55 48 89 e5 53 48 89 fb
> [ 91.202005] NMI backtrace for cpu 6
> [ 91.202005] CPU: 6 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007cb22580 ti: ffff88007c624000 task.ti: ffff88007c624000
> [ 91.202005] RIP: 0010:[<ffffffff810ad39b>] [<ffffffff810ad39b>] rcu_torture_reader+0xeb/0x2e0
> [ 91.202005] RSP: 0018:ffff88007c627e10 EFLAGS: 00000207
> [ 91.202005] RAX: 000000000000000a RBX: 0000000000000000 RCX: 00000000000493e0
> [ 91.202005] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81cbdff8
> [ 91.202005] RBP: ffff88007c627ea8 R08: ffff88007c624000 R09: ffff88007fad53f0
> [ 91.202005] R10: ffff88007c627e30 R11: 000000000000005a R12: 0000000000000000
> [ 91.202005] R13: 00000037e5c0cf9a R14: 000000000000046f R15: ffffffff820d5fe0
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202005] Stack:
> [ 91.202005] 0000000000000000 0000000081a0a240 cbee22ce8ab059c0 0000000000001190
> [ 91.202005] ffff88007cc53d40 ffff88007c50bdf0 00000000fffcd063 ffffffff810ad590
> [ 91.202005] 0000000000000000 ffffffff00000006 00000000ffffffff 0000000000000000
> [ 91.202005] Call Trace:
> [ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Code: ff 04 e5 40 cb 00 00 48 83 78 30 01 48 83 db ff e8 5b ad 29 00 48 83 fb 0a b8 0a 00 00 00 48 0f 47 d8 65 48 ff 04 dd e0 ca 00 00 <bf> 01 00 00 00 e8 ab ab fc ff 65 8b 05 e4 d9 f5 7e 85 c0 0f 84
> [ 91.202005] NMI backtrace for cpu 7
> [ 91.202005] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007cb21900 ti: ffff88007c620000 task.ti: ffff88007c620000
> [ 91.202005] RIP: 0010:[<ffffffff81339463>] [<ffffffff81339463>] delay_tsc+0x33/0xc0
> [ 91.202005] RSP: 0018:ffff88007c623db0 EFLAGS: 00000286
> [ 91.202005] RAX: 0000000080000000 RBX: 000000c2beb23b20 RCX: 0000000000000001
> [ 91.202005] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff
> [ 91.202005] RBP: ffff88007c623dd0 R08: ffff88007c620000 R09: ffff88007faf53f0
> [ 91.202005] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c2beb06098
> [ 91.202005] R13: 0000000000351ec1 R14: 0000000000000007 R15: ffffffff820d5fe0
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202005] Stack:
> [ 91.202005] 0000000000000028 ffff88007c623e20 00000037e496c4c4 000000000000046f
> [ 91.202005] ffff88007c623de0 ffffffff81339337 ffff88007c623e00 ffffffff810add86
> [ 91.202005] 0000000000000000 0000000000000000 ffff88007c623ea8 ffffffff810ad458
> [ 91.202005] Call Trace:
> [ 91.202005] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 91.202005] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 <bf> 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f
> [ 91.202005] NMI backtrace for cpu 9
> [ 91.202005] CPU: 9 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007c66a580 ti: ffff88007c654000 task.ti: ffff88007c654000
> [ 91.202005] RIP: 0010:[<ffffffff810addde>] [<ffffffff810addde>] rcu_read_delay+0x8e/0xb0
> [ 91.202005] RSP: 0018:ffff88007c657df0 EFLAGS: 00000246
> [ 91.202005] RAX: 0000000000003642 RBX: 0000000000000000 RCX: 00000000000493e0
> [ 91.202005] RDX: 000000000003761e RSI: ffff88007fb327d8 RDI: ffff88007c657e20
> [ 91.202005] RBP: ffff88007c657e00 R08: ffff88007c654000 R09: ffff88007fb353f0
> [ 91.202005] R10: ffff88007c657e30 R11: 0000000000000078 R12: ffff88007c657e20
> [ 91.202005] R13: 00000037e5c0ea8d R14: 000000000000046f R15: ffffffff820d5fe0
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fb20000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 000055f32cd5f720 CR3: 000000007b0a0000 CR4: 00000000000006e0
> [ 91.202005] Stack:
> [ 91.202005] 0000000000000000 0000000000000000 ffff88007c657ea8 ffffffff810ad458
> [ 91.202005] 0000000000000000 0000000081a0a240 27e1079dd5def862 0000000000000363
> [ 91.202005] 0000000000000000 ffff88007fb2cf60 00000000fffcd063 ffffffff810ad590
> [ 91.202005] Call Trace:
> [ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Code: 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41 5c 5d c3 4c 89 e7 e8 34 83 07 00 69 0d 9e 94 02 01 20 4e 00 00 31 d2 48 63 c9 48 f7 f1 <48> 85 d2 75 dc e8 28 1b 80 00 5b 41 5c 5d c3 bf 78 1b 0d 00 e8
> [ 91.202005] NMI backtrace for cpu 10
> [ 91.202005] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007cc98c80 ti: ffff88007cca4000 task.ti: ffff88007cca4000
> [ 91.202005] RIP: 0010:[<ffffffff81092067>] [<ffffffff81092067>] queued_spin_lock_slowpath+0x127/0x1a0
> [ 91.202005] RSP: 0018:ffff88007fb43d90 EFLAGS: 00000002
> [ 91.202005] RAX: 0000000000000000 RBX: ffff88007fb6cc00 RCX: ffff88007fb55e80
> [ 91.202005] RDX: 00000000002c0101 RSI: ffffffff81ca0d44 RDI: 00000000002c0000
> [ 91.202005] RBP: ffff88007fb43da8 R08: 0000000000000000 R09: 0000000000000583
> [ 91.202005] R10: ffff88007cca7f58 R11: 0000000000000583 R12: 0000000000000000
> [ 91.202005] R13: ffff88007fb55e80 R14: 00000000cfbb42a0 R15: 0000000000000000
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202005] Stack:
> [ 91.202005] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb43dd8
> [ 91.202005] ffffffff81093185 ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00
> [ 91.202005] 0000000000000000 ffff88007fb43df0 ffffffff818b3fda 000000000000000b
> [ 91.202005] Call Trace:
> [ 91.202005] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 91.202005] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 91.202005] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 91.202005] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 91.202005] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 91.202005] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 91.202005] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 91.202005] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 91.202005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 91.202005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 91.202005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 91.202005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 91.202005] <EOI> \x01d [<ffffffff8100f303>] ? default_idle+0x13/0xd0
> [ 91.202005] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
> [ 91.202005] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
> [ 91.202005] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
> [ 91.202005] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
> [ 91.202005] Code: 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 <8b> 13 66 85 d2 75 f7 be 01 00 00 00 eb 10 89 d0 f0 0f b1 33 39
> [ 91.202005] NMI backtrace for cpu 11
> [ 91.202005] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
> [ 91.202005] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
> [ 91.202005] RSP: 0000:ffff88007fb63e58 EFLAGS: 00000002
> [ 91.202005] RAX: 00000000002c0101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
> [ 91.202005] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
> [ 91.202005] RBP: ffff88007fb63e70 R08: 00000000000006e7 R09: 0000000000000418
> [ 91.202005] R10: ffff88007c63ff58 R11: 0000000000000418 R12: 00000000cfbb42a0
> [ 91.202005] R13: 0000000000000001 R14: 00000000cfbb42a0 R15: 0000000000000000
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202005] Stack:
> [ 91.202005] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb63ea0
> [ 91.202005] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
> [ 91.202005] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
> [ 91.202005] Call Trace:
> [ 91.202005] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 91.202005] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 91.202005] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 91.202005] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 91.202005] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 91.202005] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 91.202005] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 91.202005] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 91.202005] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 91.202005] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 91.202005] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 91.202005] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 91.202005] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 91.202005] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 91.202005] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 91.202005] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 91.202005] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 91.202005] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 91.202005] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 91.202005] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 91.202005] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 91.202005] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 91.202005] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 91.202005] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 91.202005] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 91.202005] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 91.202005] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 91.202005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 91.202005] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 91.202005] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 91.202005] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 91.202005] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
> [ 91.202005] NMI backtrace for cpu 12
> [ 91.202005] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007cb27080 ti: ffff88007c674000 task.ti: ffff88007c674000
> [ 91.202005] RIP: 0010:[<ffffffff81339453>] [<ffffffff81339453>] delay_tsc+0x23/0xc0
> [ 91.202005] RSP: 0000:ffff88007c677d00 EFLAGS: 00000002
> [ 91.202005] RAX: 000000000000000c RBX: ffff88007fb6cc00 RCX: 0000000000000002
> [ 91.202005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 91.202005] RBP: ffff88007c677d20 R08: ffff88007c674000 R09: ffff88007fb6cc00
> [ 91.202005] R10: ffff88007c677e30 R11: 000000000000002d R12: 00000000c7d753c2
> [ 91.202005] R13: 0000000000000001 R14: 000000000000000c R15: ffff88007c677dd0
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202005] Stack:
> [ 91.202005] ffff88007fb6cc00 00000000c7d753c2 0000000000000001 00000000cfbb42a0
> [ 91.202005] ffff88007c677d30 ffffffff8133930a ffff88007c677d60 ffffffff810930c7
> [ 91.202005] 0000000000000286 ffff88007fb6cc00 ffff88007fb6cc00 000000000000cc00
> [ 91.202005] Call Trace:
> [ 91.202005] [<ffffffff8133930a>] __delay+0xa/0x10
> [ 91.202005] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
> [ 91.202005] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 91.202005] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 91.202005] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 91.202005] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 91.202005] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Code: 5d 41 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 <0f> 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00
> [ 91.202005] NMI backtrace for cpu 14
> [ 91.202005] CPU: 14 PID: 785 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007cb23200 ti: ffff88007cbb8000 task.ti: ffff88007cbb8000
> [ 91.202005] RIP: 0010:[<ffffffff81078120>] [<ffffffff81078120>] preempt_count_add+0x70/0xc0
> [ 91.202005] RSP: 0018:ffff88007cbbbd98 EFLAGS: 00000246
> [ 91.202005] RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
> [ 91.202005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: 0000000000000001
> [ 91.202005] RBP: ffff88007cbbbda0 R08: ffff88007cbb8000 R09: 0000000000000002
> [ 91.202005] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c2beb198e2
> [ 91.202005] R13: 00000000000aa2cd R14: 000000000000000e R15: ffffffff820d5fe0
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202005] Stack:
> [ 91.202005] 000000c2beb32182 ffff88007cbbbdd0 ffffffff8133946d 0000000000000000
> [ 91.202005] ffff88007cbbbe20 00000037e5c0ae24 000000000000046f ffff88007cbbbde0
> [ 91.202005] ffffffff81339337 ffff88007cbbbe00 ffffffff810addf7 0000000000000000
> [ 91.202005] Call Trace:
> [ 91.202005] [<ffffffff8133946d>] delay_tsc+0x3d/0xc0
> [ 91.202005] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 91.202005] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
> [ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Code: 8b 05 a5 07 0a 01 85 c0 75 da 48 c7 c1 f0 57 c9 81 48 c7 c2 1e 0a c9 81 be e1 0b 00 00 48 c7 c7 fb dd c9 81 e8 52 f0 fd ff eb b9 <48> 8b 45 00 48 8b 58 08 48 89 df e8 80 99 01 00 85 c0 75 13 65
> [ 91.202005] NMI backtrace for cpu 15
> [ 91.202005] CPU: 15 PID: 778 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202005] task: ffff88007c66d780 ti: ffff88007c664000 task.ti: ffff88007c664000
> [ 91.202005] RIP: 0010:[<ffffffff810add72>] [<ffffffff810add72>] rcu_read_delay+0x22/0xb0
> [ 91.202005] RSP: 0018:ffff88007c667df0 EFLAGS: 00000246
> [ 91.202005] RAX: 0000000000000036 RBX: 0000000000000000 RCX: 000000000016e360
> [ 91.202005] RDX: 0000000000103495 RSI: ffff88007fbf27d8 RDI: ffff88007c667e20
> [ 91.202005] RBP: ffff88007c667e00 R08: ffff88007c664000 R09: ffff88007fbf53f0
> [ 91.202005] R10: ffff88007c667e30 R11: 0000000000000001 R12: ffff88007c667e20
> [ 91.202005] R13: 00000037e5c12d14 R14: 000000000000046f R15: ffffffff820d5fe0
> [ 91.202005] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
> [ 91.202005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202005] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202005] Stack:
> [ 91.202005] 0000000000000000 0000000000000000 ffff88007c667ea8 ffffffff810ad458
> [ 91.202005] 0000000000000000 0000000081a0a240 c0b2cf292ad504e4 00000000000018bf
> [ 91.202005] ffff88007c5e3de0 ffff88007fbecf60 00000000fffcd063 ffffffff810ad590
> [ 91.202005] Call Trace:
> [ 91.202005] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 91.202005] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202005] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202005] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202005] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202005] Code: ff ff 5d c3 0f 1f 44 00 00 55 48 89 e5 41 54 53 49 89 fc e8 a1 83 07 00 48 63 0d 0e 95 02 01 31 d2 48 69 c9 a0 86 01 00 48 f7 f1 <48> 85 d2 75 15 bb 32 00 00 00 bf 58 89 41 00 e8 8a b5 28 00 48
> [ 91.202004] BUG: spinlock lockup suspected on CPU#12, rcu_torture_rea/790
> [ 91.202004] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/794, .owner_cpu: 11
> [ 91.202004] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] ffff88007fb6cc00 ffff88007c677d10 ffffffff8132cd6c ffff88007c67a580
> [ 91.202004] ffff88007c677d30 ffffffff81092fb3 ffff88007fb6cc00 00000000cfbb42a0
> [ 91.202004] ffff88007c677d60 ffffffff810930db 0000000000000286 ffff88007fb6cc00
> [ 91.202004] Call Trace:
> [ 91.202004] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
> [ 91.202004] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
> [ 91.202004] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
> [ 91.202004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 91.202004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 91.202004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 91.202004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 91.202004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Sending NMI to all CPUs:
> [ 91.202004] NMI backtrace for cpu 0
> [ 91.202004] CPU: 0 PID: 777 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007c66be80 ti: ffff88007c660000 task.ti: ffff88007c660000
> [ 91.202004] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
> [ 91.202004] RSP: 0018:ffff88007c663d18 EFLAGS: 00000002
> [ 91.202004] RAX: 0000000000000101 RBX: ffff88007fbacc00 RCX: 0000000000000001
> [ 91.202004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
> [ 91.202004] RBP: ffff88007c663d30 R08: 00000000000006e7 R09: 00000000000006e4
> [ 91.202004] R10: ffff88007c663f58 R11: 00000000000006e4 R12: 00000000cfbb42a0
> [ 91.202004] R13: 0000000000000001 R14: 00000000cfbb42a0 R15: ffff88007c663dd0
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 000055f32cd75020 CR3: 0000000001e0f000 CR4: 00000000000006f0
> [ 91.202004] Stack:
> [ 91.202004] ffff88007fbacc00 00000000cfbb42a0 0000000000000001 ffff88007c663d60
> [ 91.202004] ffffffff81093185 0000000000000286 ffff88007fbacc00 ffff88007fbacc00
> [ 91.202004] 000000000000cc00 ffff88007c663d80 ffffffff818b401f 000000000000000d
> [ 91.202004] Call Trace:
> [ 91.202004] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 91.202004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 91.202004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 91.202004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 91.202004] [<ffffffff818af940>] ? preempt_schedule+0x30/0x30
> [ 91.202004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
> [ 91.202004] NMI backtrace for cpu 2
> [ 91.202004] CPU: 2 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007cb24b00 ti: ffff88007c680000 task.ti: ffff88007c680000
> [ 91.202004] RIP: 0010:[<ffffffff81347fe8>] [<ffffffff81347fe8>] check_preemption_disabled+0x8/0xe0
> [ 91.202004] RSP: 0018:ffff88007c683d90 EFLAGS: 00000246
> [ 91.202004] RAX: 0000000080000001 RBX: 000000c7ab3fe108 RCX: 0000000000000001
> [ 91.202004] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 91.202004] RBP: ffff88007c683da0 R08: ffff88007c680000 R09: 0000000000000002
> [ 91.202004] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c7ab3f6534
> [ 91.202004] R13: 00000000000a9fb8 R14: 0000000000000002 R15: ffffffff820d5fe0
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202004] Stack:
> [ 91.202004] ffff88007c683da0 ffffffff813480d7 ffff88007c683dd0 ffffffff81339472
> [ 91.202004] 0000000000000000 ffff88007c683e20 00000039515b4c4d 000000000000046f
> [ 91.202004] ffff88007c683de0 ffffffff81339337 ffff88007c683e00 ffffffff810addf7
> [ 91.202004] Call Trace:
> [ 91.202004] [<ffffffff813480d7>] ? debug_smp_processor_id+0x17/0x20
> [ 91.202004] [<ffffffff81339472>] delay_tsc+0x42/0xc0
> [ 91.202004] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 91.202004] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
> [ 91.202004] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Code: 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 65 8b 05 a8 2d cc 7e <48> 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff
> [ 91.202004] NMI backtrace for cpu 6
> [ 91.202004] CPU: 6 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007cb22580 ti: ffff88007c624000 task.ti: ffff88007c624000
> [ 91.202004] RIP: 0010:[<ffffffff810addac>] [<ffffffff810addac>] rcu_read_delay+0x5c/0xb0
> [ 91.202004] RSP: 0018:ffff88007c627df0 EFLAGS: 00000202
> [ 91.202004] RAX: 00000000000a4fd6 RBX: 0000000000000000 RCX: 0000000000001770
> [ 91.202004] RDX: 0000000000000e75 RSI: ffff88007fad27d8 RDI: ffff88007c627e20
> [ 91.202004] RBP: ffff88007c627e00 R08: ffff88007c624000 R09: ffff88007fad53f0
> [ 91.202004] R10: ffff88007c627e30 R11: 000000000000005a R12: ffff88007c627e20
> [ 91.202004] R13: 00000039515b8490 R14: 000000000000046f R15: ffffffff820d5fe0
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202004] Stack:
> [ 91.202004] 0000000000000000 0000000000000000 ffff88007c627ea8 ffffffff810ad458
> [ 91.202004] 0000000000000000 0000000081a0a240 4f1dab463615f1af 0000000000000b21
> [ 91.202004] ffff88007cc53d40 ffff88007c50bdf0 00000000fffcd063 ffffffff810ad590
> [ 91.202004] Call Trace:
> [ 91.202004] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Code: e8 8a b5 28 00 48 83 eb 01 75 f0 4c 89 e7 e8 6c 83 07 00 48 63 15 d9 94 02 01 48 8d 14 92 48 8d 0c 92 31 d2 48 c1 e1 04 48 f7 f1 <48> 85 d2 74 3c 65 8b 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41
> [ 91.202004] NMI backtrace for cpu 7
> [ 91.202004] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007cb21900 ti: ffff88007c620000 task.ti: ffff88007c620000
> [ 91.202004] RIP: 0010:[<ffffffff8133947c>] [<ffffffff8133947c>] delay_tsc+0x4c/0xc0
> [ 91.202004] RSP: 0018:ffff88007c623db0 EFLAGS: 00000246
> [ 91.202004] RAX: 00000000ab406ce4 RBX: 000000c7ab406c44 RCX: 0000000000000001
> [ 91.202004] RDX: 00000000000000c7 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 91.202004] RBP: ffff88007c623dd0 R08: ffff88007c620000 R09: 0000000000000002
> [ 91.202004] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c7ab2cda1c
> [ 91.202004] R13: 0000000000351ec1 R14: 0000000000000007 R15: ffffffff820d5fe0
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202004] Stack:
> [ 91.202004] 0000000000000015 ffff88007c623e20 000000394df2e808 000000000000046f
> [ 91.202004] ffff88007c623de0 ffffffff81339337 ffff88007c623e00 ffffffff810add86
> [ 91.202004] 0000000000000000 0000000000000000 ffff88007c623ea8 ffffffff810ad458
> [ 91.202004] Call Trace:
> [ 91.202004] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 91.202004] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
> [ 91.202004] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Code: ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f ae e8 0f 31 <48> c1 e2 20 48 89 d3 48 09 c3 48 89 d8 4c 29 e0 49 39 c5 76 24
> [ 91.202004] NMI backtrace for cpu 9
> [ 91.202004] CPU: 9 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007c66a580 ti: ffff88007c654000 task.ti: ffff88007c654000
> [ 91.202004] RIP: 0010:[<ffffffff810a892f>] [<ffffffff810a892f>] __rcu_read_unlock+0x2f/0x50
> [ 91.202004] RSP: 0018:ffff88007c657de8 EFLAGS: 00000246
> [ 91.202004] RAX: 0000000000000001 RBX: ffff88007c66a580 RCX: 0000000000000001
> [ 91.202004] RDX: 0000000080000001 RSI: ffffffff81d29759 RDI: 0000000000000000
> [ 91.202004] RBP: ffff88007c657df0 R08: ffff88007c654000 R09: ffff88007fb353f0
> [ 91.202004] R10: ffff88007c657e30 R11: 0000000000000078 R12: 0000000000000000
> [ 91.202004] R13: 00000039515bac4a R14: 000000000000046f R15: ffffffff820d5fe0
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fb20000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 000055f32cd5f720 CR3: 000000007b0a0000 CR4: 00000000000006e0
> [ 91.202004] Stack:
> [ 91.202004] 0000000000000000 ffff88007c657e00 ffffffff810accc9 ffff88007c657ea8
> [ 91.202004] ffffffff810ad3c2 0000000000000000 0000000081a0a240 142e046850c04feb
> [ 91.202004] 0000000000001bad 0000000000000000 ffff88007fb2cf60 00000000fffcd063
> [ 91.202004] Call Trace:
> [ 91.202004] [<ffffffff810accc9>] rcu_torture_read_unlock+0x9/0x10
> [ 91.202004] [<ffffffff810ad3c2>] rcu_torture_reader+0x112/0x2e0
> [ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Code: 53 65 48 8b 1c 25 00 ae 00 00 8b 83 50 03 00 00 83 f8 01 74 0c 83 e8 01 89 83 50 03 00 00 5b 5d c3 c7 83 50 03 00 00 00 00 00 80 <8b> 83 54 03 00 00 85 c0 75 0d c7 83 50 03 00 00 00 00 00 00 5b
> [ 91.202004] NMI backtrace for cpu 10
> [ 91.202004] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007cc98c80 ti: ffff88007cca4000 task.ti: ffff88007cca4000
> [ 91.202004] RIP: 0010:[<ffffffff81092067>] [<ffffffff81092067>] queued_spin_lock_slowpath+0x127/0x1a0
> [ 91.202004] RSP: 0018:ffff88007fb43d90 EFLAGS: 00000002
> [ 91.202004] RAX: 0000000000000000 RBX: ffff88007fb6cc00 RCX: ffff88007fb55e80
> [ 91.202004] RDX: 00000000002c0101 RSI: ffffffff81ca0d44 RDI: 00000000002c0000
> [ 91.202004] RBP: ffff88007fb43da8 R08: 0000000000000000 R09: 0000000000000583
> [ 91.202004] R10: ffff88007cca7f58 R11: 0000000000000583 R12: 0000000000000000
> [ 91.202004] R13: ffff88007fb55e80 R14: 00000000cfbb42a0 R15: 0000000000000000
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202004] Stack:
> [ 91.202004] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb43dd8
> [ 91.202004] ffffffff81093185 ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00
> [ 91.202004] 0000000000000000 ffff88007fb43df0 ffffffff818b3fda 000000000000000b
> [ 91.202004] Call Trace:
> [ 91.202004] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 91.202004] [<ffffffff818b3fda>] _raw_spin_lock+0x1a/0x20
> [ 91.202004] [<ffffffff810b96b6>] add_timer_on+0x76/0x150
> [ 91.202004] [<ffffffff810c35e7>] clocksource_watchdog+0x217/0x2f0
> [ 91.202004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 91.202004] [<ffffffff810b8e10>] call_timer_fn+0x30/0x120
> [ 91.202004] [<ffffffff810c33d0>] ? clocksource_unregister+0x50/0x50
> [ 91.202004] [<ffffffff810b937b>] run_timer_softirq+0x20b/0x2b0
> [ 91.202004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 91.202004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 91.202004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 91.202004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 91.202004] <EOI> \x01d [<ffffffff8100f303>] ? default_idle+0x13/0xd0
> [ 91.202004] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
> [ 91.202004] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
> [ 91.202004] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
> [ 91.202004] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
> [ 91.202004] Code: 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 <8b> 13 66 85 d2 75 f7 be 01 00 00 00 eb 10 89 d0 f0 0f b1 33 39
> [ 91.202004] NMI backtrace for cpu 11
> [ 91.202004] CPU: 11 PID: 794 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007c67a580 ti: ffff88007c63c000 task.ti: ffff88007c63c000
> [ 91.202004] RIP: 0010:[<ffffffff810920b1>] [<ffffffff810920b1>] queued_spin_lock_slowpath+0x171/0x1a0
> [ 91.202004] RSP: 0000:ffff88007fb63e58 EFLAGS: 00000002
> [ 91.202004] RAX: 00000000002c0101 RBX: ffff88007fb6cc00 RCX: 0000000000000001
> [ 91.202004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
> [ 91.202004] RBP: ffff88007fb63e70 R08: 00000000000006e7 R09: 0000000000000418
> [ 91.202004] R10: ffff88007c63ff58 R11: 0000000000000418 R12: 00000000cfbb42a0
> [ 91.202004] R13: 0000000000000001 R14: 00000000cfbb42a0 R15: 0000000000000000
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202004] Stack:
> [ 91.202004] ffff88007fb6cc00 00000000cfbb42a0 0000000000000001 ffff88007fb63ea0
> [ 91.202004] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001
> [ 91.202004] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00
> [ 91.202004] Call Trace:
> [ 91.202004] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
> [ 91.202004] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
> [ 91.202004] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
> [ 91.202004] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
> [ 91.202004] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
> [ 91.202004] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
> [ 91.202004] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
> [ 91.202004] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
> [ 91.202004] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
> [ 91.202004] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
> [ 91.202004] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
> [ 91.202004] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
> [ 91.202004] [<ffffffff810087e4>] oops_end+0x84/0xb0
> [ 91.202004] [<ffffffff8104a612>] no_context+0x102/0x330
> [ 91.202004] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
> [ 91.202004] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
> [ 91.202004] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
> [ 91.202004] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
> [ 91.202004] [<ffffffff818b6422>] page_fault+0x22/0x30
> [ 91.202004] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
> [ 91.202004] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> [ 91.202004] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> [ 91.202004] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> [ 91.202004] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> [ 91.202004] [<ffffffff81057852>] _cpu_down+0x212/0x350
> [ 91.202004] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> [ 91.202004] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> [ 91.202004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 91.202004] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> [ 91.202004] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> [ 91.202004] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> [ 91.202004] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Code: d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 8b 03 <84> c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 f3 90
> [ 91.202004] NMI backtrace for cpu 12
> [ 91.202004] CPU: 12 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007cb27080 ti: ffff88007c674000 task.ti: ffff88007c674000
> [ 91.202004] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
> [ 91.202004] RSP: 0000:ffff88007c677c90 EFLAGS: 00000046
> [ 91.202004] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000c
> [ 91.202004] RDX: 000000000000000c RSI: 0000000000000010 RDI: 0000000000000300
> [ 91.202004] RBP: ffff88007c677cc8 R08: 0000000000000000 R09: 000000000000dec4
> [ 91.202004] R10: ffff88007c677f58 R11: 00000000000006fb R12: ffffffff81f31740
> [ 91.202004] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000c
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202004] Stack:
> [ 91.202004] 0000000000000086 0000000c7c677ca0 000000000000ff40 0000000000000001
> [ 91.202004] ffffffff8103fd20 00000000cfbb42a0 ffff88007c677dd0 ffff88007c677cd8
> [ 91.202004] ffffffff8103fd36 ffff88007c677d20 ffffffff81331299 ffffffff81008b50
> [ 91.202004] Call Trace:
> [ 91.202004] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
> [ 91.202004] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
> [ 91.202004] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
> [ 91.202004] [<ffffffff81008b50>] ? show_stack+0x20/0x50
> [ 91.202004] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
> [ 91.202004] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
> [ 91.202004] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
> [ 91.202004] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
> [ 91.202004] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
> [ 91.202004] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
> [ 91.202004] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
> [ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
> [ 91.202004] NMI backtrace for cpu 14
> [ 91.202004] CPU: 14 PID: 785 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007cb23200 ti: ffff88007cbb8000 task.ti: ffff88007cbb8000
> [ 91.202004] RIP: 0010:[<ffffffff81347fef>] [<ffffffff81347fef>] check_preemption_disabled+0xf/0xe0
> [ 91.202004] RSP: 0018:ffff88007cbbbd80 EFLAGS: 00000246
> [ 91.202004] RAX: 0000000080000001 RBX: 000000c7ab4487ce RCX: 0000000000000001
> [ 91.202004] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
> [ 91.202004] RBP: ffff88007cbbbd90 R08: ffff88007cbb8000 R09: ffff88007fbd53f0
> [ 91.202004] R10: 0000000000000000 R11: 0000000000000001 R12: 000000c7ab40f0d2
> [ 91.202004] R13: 00000000000aa2cd R14: 000000000000000e R15: ffffffff820d5fe0
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202004] Stack:
> [ 91.202004] 00000000000aa2cd 000000000000000e ffff88007cbbbda0 ffffffff813480d7
> [ 91.202004] ffff88007cbbbdd0 ffffffff81339472 0000000000000000 ffff88007cbbbe20
> [ 91.202004] 00000039515bbe80 000000000000046f ffff88007cbbbde0 ffffffff81339337
> [ 91.202004] Call Trace:
> [ 91.202004] [<ffffffff813480d7>] debug_smp_processor_id+0x17/0x20
> [ 91.202004] [<ffffffff81339472>] delay_tsc+0x42/0xc0
> [ 91.202004] [<ffffffff81339337>] __const_udelay+0x27/0x30
> [ 91.202004] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
> [ 91.202004] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
> [ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Code: 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 65 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 <41> 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff 7f 74 0b 89 d8 5b 41
> [ 91.202004] NMI backtrace for cpu 15
> [ 91.202004] CPU: 15 PID: 778 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
> [ 91.202004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> [ 91.202004] task: ffff88007c66d780 ti: ffff88007c664000 task.ti: ffff88007c664000
> [ 91.202004] RIP: 0010:[<ffffffff813480f3>] [<ffffffff813480f3>] __this_cpu_preempt_check+0x13/0x20
> [ 91.202004] RSP: 0018:ffff88007c667e00 EFLAGS: 00000202
> [ 91.202004] RAX: 000000000000000f RBX: 0000000000000000 RCX: 00000000000493e0
> [ 91.202004] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81cbdff8
> [ 91.202004] RBP: ffff88007c667e00 R08: ffff88007c664000 R09: ffff88007fbf53f0
> [ 91.202004] R10: ffff88007c667e30 R11: 0000000000000001 R12: 0000000000000000
> [ 91.202004] R13: 00000039515cdbe8 R14: 000000000000046f R15: ffffffff820d5fe0
> [ 91.202004] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
> [ 91.202004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 91.202004] CR2: 000055f32cd5f720 CR3: 0000000001e0f000 CR4: 00000000000006e0
> [ 91.202004] Stack:
> [ 91.202004] ffff88007c667ea8 ffffffff810ad385 0000000000000000 0000000081a0a240
> [ 91.202004] 8690c2c9a6c7a479 0000000000001532 ffff88007c5e3de0 ffff88007fbecf60
> [ 91.202004] 00000000fffcd063 ffffffff810ad590 0000000000000000 ffffffff0000000f
> [ 91.202004] Call Trace:
> [ 91.202004] [<ffffffff810ad385>] rcu_torture_reader+0xd5/0x2e0
> [ 91.202004] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
> [ 91.202004] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
> [ 91.202004] [<ffffffff810732f6>] kthread+0xd6/0xf0
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> [ 91.202004] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> [ 91.202004] Code: 48 c7 c7 e7 df cb 81 48 89 e5 e8 09 ff ff ff 5d c3 0f 1f 80 00 00 00 00 55 48 89 fe 48 c7 c7 f8 df cb 81 48 89 e5 e8 ed fe ff ff <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 90 55 48 85 d2 48 89 e5 41
> #
> # Automatically generated file; DO NOT EDIT.
> # Linux/x86 4.5.0-rc1 Kernel Configuration
> #
> CONFIG_64BIT=y
> CONFIG_X86_64=y
> CONFIG_X86=y
> CONFIG_INSTRUCTION_DECODER=y
> CONFIG_PERF_EVENTS_INTEL_UNCORE=y
> CONFIG_OUTPUT_FORMAT="elf64-x86-64"
> CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
> CONFIG_LOCKDEP_SUPPORT=y
> CONFIG_STACKTRACE_SUPPORT=y
> CONFIG_MMU=y
> CONFIG_ARCH_MMAP_RND_BITS_MIN=28
> CONFIG_ARCH_MMAP_RND_BITS_MAX=32
> CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
> CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
> CONFIG_NEED_DMA_MAP_STATE=y
> CONFIG_NEED_SG_DMA_LENGTH=y
> CONFIG_GENERIC_ISA_DMA=y
> CONFIG_GENERIC_BUG=y
> CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
> CONFIG_GENERIC_HWEIGHT=y
> CONFIG_ARCH_MAY_HAVE_PC_FDC=y
> CONFIG_RWSEM_XCHGADD_ALGORITHM=y
> CONFIG_GENERIC_CALIBRATE_DELAY=y
> CONFIG_ARCH_HAS_CPU_RELAX=y
> CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
> CONFIG_HAVE_SETUP_PER_CPU_AREA=y
> CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
> CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
> CONFIG_ARCH_HIBERNATION_POSSIBLE=y
> CONFIG_ARCH_SUSPEND_POSSIBLE=y
> CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
> CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
> CONFIG_ZONE_DMA32=y
> CONFIG_AUDIT_ARCH=y
> CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
> CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
> CONFIG_HAVE_INTEL_TXT=y
> CONFIG_X86_64_SMP=y
> CONFIG_ARCH_HWEIGHT_CFLAGS="-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11"
> CONFIG_ARCH_SUPPORTS_UPROBES=y
> CONFIG_FIX_EARLYCON_MEM=y
> CONFIG_PGTABLE_LEVELS=4
> CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
> CONFIG_IRQ_WORK=y
> CONFIG_BUILDTIME_EXTABLE_SORT=y
>
> #
> # General setup
> #
> CONFIG_INIT_ENV_ARG_LIMIT=32
> CONFIG_CROSS_COMPILE=""
> # CONFIG_COMPILE_TEST is not set
> CONFIG_LOCALVERSION=""
> # CONFIG_LOCALVERSION_AUTO is not set
> CONFIG_HAVE_KERNEL_GZIP=y
> CONFIG_HAVE_KERNEL_BZIP2=y
> CONFIG_HAVE_KERNEL_LZMA=y
> CONFIG_HAVE_KERNEL_XZ=y
> CONFIG_HAVE_KERNEL_LZO=y
> CONFIG_HAVE_KERNEL_LZ4=y
> CONFIG_KERNEL_GZIP=y
> # CONFIG_KERNEL_BZIP2 is not set
> # CONFIG_KERNEL_LZMA is not set
> # CONFIG_KERNEL_XZ is not set
> # CONFIG_KERNEL_LZO is not set
> # CONFIG_KERNEL_LZ4 is not set
> CONFIG_DEFAULT_HOSTNAME="(none)"
> CONFIG_SWAP=y
> CONFIG_SYSVIPC=y
> CONFIG_SYSVIPC_SYSCTL=y
> CONFIG_POSIX_MQUEUE=y
> CONFIG_POSIX_MQUEUE_SYSCTL=y
> CONFIG_CROSS_MEMORY_ATTACH=y
> CONFIG_FHANDLE=y
> CONFIG_USELIB=y
> CONFIG_AUDIT=y
> CONFIG_HAVE_ARCH_AUDITSYSCALL=y
> CONFIG_AUDITSYSCALL=y
> CONFIG_AUDIT_WATCH=y
> CONFIG_AUDIT_TREE=y
>
> #
> # IRQ subsystem
> #
> CONFIG_GENERIC_IRQ_PROBE=y
> CONFIG_GENERIC_IRQ_SHOW=y
> CONFIG_GENERIC_PENDING_IRQ=y
> CONFIG_IRQ_DOMAIN=y
> CONFIG_IRQ_DOMAIN_HIERARCHY=y
> CONFIG_GENERIC_MSI_IRQ=y
> CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
> # CONFIG_IRQ_DOMAIN_DEBUG is not set
> CONFIG_IRQ_FORCED_THREADING=y
> CONFIG_SPARSE_IRQ=y
> CONFIG_CLOCKSOURCE_WATCHDOG=y
> CONFIG_ARCH_CLOCKSOURCE_DATA=y
> CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
> CONFIG_GENERIC_TIME_VSYSCALL=y
> CONFIG_GENERIC_CLOCKEVENTS=y
> CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
> CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
> CONFIG_GENERIC_CMOS_UPDATE=y
>
> #
> # Timers subsystem
> #
> CONFIG_TICK_ONESHOT=y
> CONFIG_HZ_PERIODIC=y
> # CONFIG_NO_HZ_IDLE is not set
> # CONFIG_NO_HZ_FULL is not set
> CONFIG_NO_HZ=y
> CONFIG_HIGH_RES_TIMERS=y
>
> #
> # CPU/Task time and stats accounting
> #
> CONFIG_TICK_CPU_ACCOUNTING=y
> # CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
> # CONFIG_IRQ_TIME_ACCOUNTING is not set
> CONFIG_BSD_PROCESS_ACCT=y
> # CONFIG_BSD_PROCESS_ACCT_V3 is not set
> CONFIG_TASKSTATS=y
> CONFIG_TASK_DELAY_ACCT=y
> CONFIG_TASK_XACCT=y
> CONFIG_TASK_IO_ACCOUNTING=y
>
> #
> # RCU Subsystem
> #
> CONFIG_PREEMPT_RCU=y
> CONFIG_RCU_EXPERT=y
> CONFIG_SRCU=y
> CONFIG_TASKS_RCU=y
> CONFIG_RCU_STALL_COMMON=y
> CONFIG_RCU_FANOUT=2
> CONFIG_RCU_FANOUT_LEAF=2
> CONFIG_TREE_RCU_TRACE=y
> CONFIG_RCU_BOOST=y
> CONFIG_RCU_KTHREAD_PRIO=2
> CONFIG_RCU_BOOST_DELAY=500
> # CONFIG_RCU_NOCB_CPU is not set
> # CONFIG_RCU_EXPEDITE_BOOT is not set
> # CONFIG_BUILD_BIN2C is not set
> # CONFIG_IKCONFIG is not set
> CONFIG_LOG_BUF_SHIFT=18
> CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
> CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
> CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
> CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
> CONFIG_ARCH_SUPPORTS_INT128=y
> # CONFIG_NUMA_BALANCING is not set
> CONFIG_CGROUPS=y
> # CONFIG_MEMCG is not set
> # CONFIG_BLK_CGROUP is not set
> CONFIG_CGROUP_SCHED=y
> CONFIG_FAIR_GROUP_SCHED=y
> # CONFIG_CFS_BANDWIDTH is not set
> # CONFIG_RT_GROUP_SCHED is not set
> # CONFIG_CGROUP_PIDS is not set
> CONFIG_CGROUP_FREEZER=y
> # CONFIG_CGROUP_HUGETLB is not set
> CONFIG_CPUSETS=y
> CONFIG_PROC_PID_CPUSET=y
> # CONFIG_CGROUP_DEVICE is not set
> CONFIG_CGROUP_CPUACCT=y
> # CONFIG_CGROUP_PERF is not set
> # CONFIG_CGROUP_DEBUG is not set
> # CONFIG_CHECKPOINT_RESTORE is not set
> CONFIG_NAMESPACES=y
> CONFIG_UTS_NS=y
> CONFIG_IPC_NS=y
> # CONFIG_USER_NS is not set
> CONFIG_PID_NS=y
> CONFIG_NET_NS=y
> # CONFIG_SCHED_AUTOGROUP is not set
> # CONFIG_SYSFS_DEPRECATED is not set
> CONFIG_RELAY=y
> CONFIG_BLK_DEV_INITRD=y
> CONFIG_INITRAMFS_SOURCE=""
> CONFIG_RD_GZIP=y
> CONFIG_RD_BZIP2=y
> CONFIG_RD_LZMA=y
> CONFIG_RD_XZ=y
> CONFIG_RD_LZO=y
> CONFIG_RD_LZ4=y
> # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
> CONFIG_SYSCTL=y
> CONFIG_ANON_INODES=y
> CONFIG_HAVE_UID16=y
> CONFIG_SYSCTL_EXCEPTION_TRACE=y
> CONFIG_HAVE_PCSPKR_PLATFORM=y
> CONFIG_BPF=y
> # CONFIG_EXPERT is not set
> CONFIG_UID16=y
> CONFIG_MULTIUSER=y
> CONFIG_SGETMASK_SYSCALL=y
> CONFIG_SYSFS_SYSCALL=y
> # CONFIG_SYSCTL_SYSCALL is not set
> CONFIG_KALLSYMS=y
> CONFIG_KALLSYMS_ALL=y
> CONFIG_PRINTK=y
> CONFIG_BUG=y
> CONFIG_ELF_CORE=y
> CONFIG_PCSPKR_PLATFORM=y
> CONFIG_BASE_FULL=y
> CONFIG_FUTEX=y
> CONFIG_EPOLL=y
> CONFIG_SIGNALFD=y
> CONFIG_TIMERFD=y
> CONFIG_EVENTFD=y
> # CONFIG_BPF_SYSCALL is not set
> CONFIG_SHMEM=y
> CONFIG_AIO=y
> CONFIG_ADVISE_SYSCALLS=y
> # CONFIG_USERFAULTFD is not set
> CONFIG_PCI_QUIRKS=y
> CONFIG_MEMBARRIER=y
> # CONFIG_EMBEDDED is not set
> CONFIG_HAVE_PERF_EVENTS=y
>
> #
> # Kernel Performance Events And Counters
> #
> CONFIG_PERF_EVENTS=y
> # CONFIG_DEBUG_PERF_USE_VMALLOC is not set
> CONFIG_VM_EVENT_COUNTERS=y
> CONFIG_SLUB_DEBUG=y
> # CONFIG_COMPAT_BRK is not set
> # CONFIG_SLAB is not set
> CONFIG_SLUB=y
> CONFIG_SLUB_CPU_PARTIAL=y
> # CONFIG_SYSTEM_DATA_VERIFICATION is not set
> CONFIG_PROFILING=y
> CONFIG_TRACEPOINTS=y
> CONFIG_KEXEC_CORE=y
> # CONFIG_OPROFILE is not set
> CONFIG_HAVE_OPROFILE=y
> CONFIG_OPROFILE_NMI_TIMER=y
> CONFIG_KPROBES=y
> CONFIG_JUMP_LABEL=y
> # CONFIG_STATIC_KEYS_SELFTEST is not set
> # CONFIG_UPROBES is not set
> # CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
> CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
> CONFIG_ARCH_USE_BUILTIN_BSWAP=y
> CONFIG_KRETPROBES=y
> CONFIG_HAVE_IOREMAP_PROT=y
> CONFIG_HAVE_KPROBES=y
> CONFIG_HAVE_KRETPROBES=y
> CONFIG_HAVE_OPTPROBES=y
> CONFIG_HAVE_KPROBES_ON_FTRACE=y
> CONFIG_HAVE_ARCH_TRACEHOOK=y
> CONFIG_HAVE_DMA_CONTIGUOUS=y
> CONFIG_GENERIC_SMP_IDLE_THREAD=y
> CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
> CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
> CONFIG_HAVE_DMA_API_DEBUG=y
> CONFIG_HAVE_HW_BREAKPOINT=y
> CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
> CONFIG_HAVE_USER_RETURN_NOTIFIER=y
> CONFIG_HAVE_PERF_EVENTS_NMI=y
> CONFIG_HAVE_PERF_REGS=y
> CONFIG_HAVE_PERF_USER_STACK_DUMP=y
> CONFIG_HAVE_ARCH_JUMP_LABEL=y
> CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
> CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
> CONFIG_HAVE_CMPXCHG_LOCAL=y
> CONFIG_HAVE_CMPXCHG_DOUBLE=y
> CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
> CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
> CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
> CONFIG_SECCOMP_FILTER=y
> CONFIG_HAVE_CC_STACKPROTECTOR=y
> # CONFIG_CC_STACKPROTECTOR is not set
> CONFIG_CC_STACKPROTECTOR_NONE=y
> # CONFIG_CC_STACKPROTECTOR_REGULAR is not set
> # CONFIG_CC_STACKPROTECTOR_STRONG is not set
> CONFIG_HAVE_CONTEXT_TRACKING=y
> CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
> CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
> CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
> CONFIG_HAVE_ARCH_HUGE_VMAP=y
> CONFIG_HAVE_ARCH_SOFT_DIRTY=y
> CONFIG_MODULES_USE_ELF_RELA=y
> CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
> CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
> CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
> CONFIG_ARCH_MMAP_RND_BITS=28
> CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
> CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
> CONFIG_HAVE_COPY_THREAD_TLS=y
> CONFIG_OLD_SIGSUSPEND3=y
> CONFIG_COMPAT_OLD_SIGACTION=y
>
> #
> # GCOV-based kernel profiling
> #
> # CONFIG_GCOV_KERNEL is not set
> CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
> # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
> CONFIG_SLABINFO=y
> CONFIG_RT_MUTEXES=y
> CONFIG_BASE_SMALL=0
> CONFIG_MODULES=y
> # CONFIG_MODULE_FORCE_LOAD is not set
> CONFIG_MODULE_UNLOAD=y
> CONFIG_MODULE_FORCE_UNLOAD=y
> # CONFIG_MODVERSIONS is not set
> # CONFIG_MODULE_SRCVERSION_ALL is not set
> # CONFIG_MODULE_SIG is not set
> # CONFIG_MODULE_COMPRESS is not set
> CONFIG_MODULES_TREE_LOOKUP=y
> CONFIG_BLOCK=y
> CONFIG_BLK_DEV_BSG=y
> # CONFIG_BLK_DEV_BSGLIB is not set
> # CONFIG_BLK_DEV_INTEGRITY is not set
> # CONFIG_BLK_CMDLINE_PARSER is not set
>
> #
> # Partition Types
> #
> CONFIG_PARTITION_ADVANCED=y
> # CONFIG_ACORN_PARTITION is not set
> # CONFIG_AIX_PARTITION is not set
> CONFIG_OSF_PARTITION=y
> CONFIG_AMIGA_PARTITION=y
> # CONFIG_ATARI_PARTITION is not set
> CONFIG_MAC_PARTITION=y
> CONFIG_MSDOS_PARTITION=y
> CONFIG_BSD_DISKLABEL=y
> CONFIG_MINIX_SUBPARTITION=y
> CONFIG_SOLARIS_X86_PARTITION=y
> CONFIG_UNIXWARE_DISKLABEL=y
> # CONFIG_LDM_PARTITION is not set
> CONFIG_SGI_PARTITION=y
> # CONFIG_ULTRIX_PARTITION is not set
> CONFIG_SUN_PARTITION=y
> CONFIG_KARMA_PARTITION=y
> CONFIG_EFI_PARTITION=y
> # CONFIG_SYSV68_PARTITION is not set
> # CONFIG_CMDLINE_PARTITION is not set
> CONFIG_BLOCK_COMPAT=y
>
> #
> # IO Schedulers
> #
> CONFIG_IOSCHED_NOOP=y
> CONFIG_IOSCHED_DEADLINE=y
> CONFIG_IOSCHED_CFQ=y
> # CONFIG_DEFAULT_DEADLINE is not set
> CONFIG_DEFAULT_CFQ=y
> # CONFIG_DEFAULT_NOOP is not set
> CONFIG_DEFAULT_IOSCHED="cfq"
> CONFIG_UNINLINE_SPIN_UNLOCK=y
> CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
> CONFIG_RWSEM_SPIN_ON_OWNER=y
> CONFIG_LOCK_SPIN_ON_OWNER=y
> CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
> CONFIG_QUEUED_SPINLOCKS=y
> CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
> CONFIG_QUEUED_RWLOCKS=y
> CONFIG_FREEZER=y
>
> #
> # Processor type and features
> #
> CONFIG_ZONE_DMA=y
> CONFIG_SMP=y
> CONFIG_X86_FEATURE_NAMES=y
> CONFIG_X86_FAST_FEATURE_TESTS=y
> CONFIG_X86_MPPARSE=y
> CONFIG_X86_EXTENDED_PLATFORM=y
> # CONFIG_X86_VSMP is not set
> # CONFIG_X86_GOLDFISH is not set
> # CONFIG_X86_INTEL_LPSS is not set
> # CONFIG_X86_AMD_PLATFORM_DEVICE is not set
> # CONFIG_IOSF_MBI is not set
> CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
> CONFIG_SCHED_OMIT_FRAME_POINTER=y
> # CONFIG_HYPERVISOR_GUEST is not set
> CONFIG_NO_BOOTMEM=y
> # CONFIG_MK8 is not set
> # CONFIG_MPSC is not set
> # CONFIG_MCORE2 is not set
> # CONFIG_MATOM is not set
> CONFIG_GENERIC_CPU=y
> CONFIG_X86_INTERNODE_CACHE_SHIFT=6
> CONFIG_X86_L1_CACHE_SHIFT=6
> CONFIG_X86_TSC=y
> CONFIG_X86_CMPXCHG64=y
> CONFIG_X86_CMOV=y
> CONFIG_X86_MINIMUM_CPU_FAMILY=64
> CONFIG_X86_DEBUGCTLMSR=y
> CONFIG_CPU_SUP_INTEL=y
> CONFIG_CPU_SUP_AMD=y
> CONFIG_CPU_SUP_CENTAUR=y
> CONFIG_HPET_TIMER=y
> CONFIG_HPET_EMULATE_RTC=y
> CONFIG_DMI=y
> # CONFIG_GART_IOMMU is not set
> CONFIG_CALGARY_IOMMU=y
> CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
> CONFIG_SWIOTLB=y
> CONFIG_IOMMU_HELPER=y
> # CONFIG_MAXSMP is not set
> CONFIG_NR_CPUS=16
> CONFIG_SCHED_SMT=y
> CONFIG_SCHED_MC=y
> # CONFIG_PREEMPT_NONE is not set
> # CONFIG_PREEMPT_VOLUNTARY is not set
> CONFIG_PREEMPT=y
> CONFIG_PREEMPT_COUNT=y
> CONFIG_X86_LOCAL_APIC=y
> CONFIG_X86_IO_APIC=y
> CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
> CONFIG_X86_MCE=y
> CONFIG_X86_MCE_INTEL=y
> CONFIG_X86_MCE_AMD=y
> CONFIG_X86_MCE_THRESHOLD=y
> # CONFIG_X86_MCE_INJECT is not set
> CONFIG_X86_THERMAL_VECTOR=y
> # CONFIG_VM86 is not set
> CONFIG_X86_16BIT=y
> CONFIG_X86_ESPFIX64=y
> CONFIG_X86_VSYSCALL_EMULATION=y
> # CONFIG_I8K is not set
> CONFIG_MICROCODE=y
> CONFIG_MICROCODE_INTEL=y
> CONFIG_MICROCODE_AMD=y
> CONFIG_MICROCODE_OLD_INTERFACE=y
> CONFIG_X86_MSR=y
> CONFIG_X86_CPUID=y
> CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
> CONFIG_ARCH_DMA_ADDR_T_64BIT=y
> CONFIG_X86_DIRECT_GBPAGES=y
> CONFIG_NUMA=y
> CONFIG_AMD_NUMA=y
> CONFIG_X86_64_ACPI_NUMA=y
> CONFIG_NODES_SPAN_OTHER_NODES=y
> # CONFIG_NUMA_EMU is not set
> CONFIG_NODES_SHIFT=6
> CONFIG_ARCH_SPARSEMEM_ENABLE=y
> CONFIG_ARCH_SPARSEMEM_DEFAULT=y
> CONFIG_ARCH_SELECT_MEMORY_MODEL=y
> CONFIG_ARCH_PROC_KCORE_TEXT=y
> CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
> CONFIG_SELECT_MEMORY_MODEL=y
> CONFIG_SPARSEMEM_MANUAL=y
> CONFIG_SPARSEMEM=y
> CONFIG_NEED_MULTIPLE_NODES=y
> CONFIG_HAVE_MEMORY_PRESENT=y
> CONFIG_SPARSEMEM_EXTREME=y
> CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
> CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y
> CONFIG_SPARSEMEM_VMEMMAP=y
> CONFIG_HAVE_MEMBLOCK=y
> CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
> CONFIG_ARCH_DISCARD_MEMBLOCK=y
> # CONFIG_MOVABLE_NODE is not set
> # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
> # CONFIG_MEMORY_HOTPLUG is not set
> CONFIG_SPLIT_PTLOCK_CPUS=4
> CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
> CONFIG_COMPACTION=y
> CONFIG_MIGRATION=y
> CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
> CONFIG_PHYS_ADDR_T_64BIT=y
> CONFIG_ZONE_DMA_FLAG=1
> CONFIG_BOUNCE=y
> CONFIG_VIRT_TO_BUS=y
> # CONFIG_KSM is not set
> CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
> CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
> # CONFIG_MEMORY_FAILURE is not set
> # CONFIG_TRANSPARENT_HUGEPAGE is not set
> # CONFIG_CLEANCACHE is not set
> # CONFIG_FRONTSWAP is not set
> # CONFIG_CMA is not set
> # CONFIG_ZPOOL is not set
> # CONFIG_ZBUD is not set
> # CONFIG_ZSMALLOC is not set
> CONFIG_GENERIC_EARLY_IOREMAP=y
> CONFIG_ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT=y
> # CONFIG_IDLE_PAGE_TRACKING is not set
> # CONFIG_X86_PMEM_LEGACY is not set
> CONFIG_X86_CHECK_BIOS_CORRUPTION=y
> CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
> CONFIG_X86_RESERVE_LOW=64
> CONFIG_MTRR=y
> # CONFIG_MTRR_SANITIZER is not set
> CONFIG_X86_PAT=y
> CONFIG_ARCH_USES_PG_UNCACHED=y
> CONFIG_ARCH_RANDOM=y
> CONFIG_X86_SMAP=y
> # CONFIG_X86_INTEL_MPX is not set
> CONFIG_EFI=y
> # CONFIG_EFI_STUB is not set
> CONFIG_SECCOMP=y
> # CONFIG_HZ_100 is not set
> # CONFIG_HZ_250 is not set
> # CONFIG_HZ_300 is not set
> CONFIG_HZ_1000=y
> CONFIG_HZ=1000
> CONFIG_SCHED_HRTICK=y
> CONFIG_KEXEC=y
> # CONFIG_KEXEC_FILE is not set
> CONFIG_CRASH_DUMP=y
> # CONFIG_KEXEC_JUMP is not set
> CONFIG_PHYSICAL_START=0x1000000
> CONFIG_RELOCATABLE=y
> # CONFIG_RANDOMIZE_BASE is not set
> CONFIG_PHYSICAL_ALIGN=0x200000
> CONFIG_HOTPLUG_CPU=y
> # CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
> # CONFIG_DEBUG_HOTPLUG_CPU0 is not set
> # CONFIG_COMPAT_VDSO is not set
> # CONFIG_LEGACY_VSYSCALL_NATIVE is not set
> CONFIG_LEGACY_VSYSCALL_EMULATE=y
> # CONFIG_LEGACY_VSYSCALL_NONE is not set
> # CONFIG_CMDLINE_BOOL is not set
> CONFIG_MODIFY_LDT_SYSCALL=y
> CONFIG_HAVE_LIVEPATCH=y
> CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
> CONFIG_USE_PERCPU_NUMA_NODE_ID=y
>
> #
> # Power management and ACPI options
> #
> CONFIG_ARCH_HIBERNATION_HEADER=y
> CONFIG_SUSPEND=y
> CONFIG_SUSPEND_FREEZER=y
> CONFIG_HIBERNATE_CALLBACKS=y
> CONFIG_HIBERNATION=y
> CONFIG_PM_STD_PARTITION=""
> CONFIG_PM_SLEEP=y
> CONFIG_PM_SLEEP_SMP=y
> # CONFIG_PM_AUTOSLEEP is not set
> # CONFIG_PM_WAKELOCKS is not set
> CONFIG_PM=y
> CONFIG_PM_DEBUG=y
> # CONFIG_PM_ADVANCED_DEBUG is not set
> # CONFIG_PM_TEST_SUSPEND is not set
> CONFIG_PM_SLEEP_DEBUG=y
> CONFIG_PM_TRACE=y
> CONFIG_PM_TRACE_RTC=y
> # CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
> CONFIG_ACPI=y
> CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
> CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
> CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
> # CONFIG_ACPI_DEBUGGER is not set
> CONFIG_ACPI_SLEEP=y
> # CONFIG_ACPI_PROCFS_POWER is not set
> CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
> # CONFIG_ACPI_EC_DEBUGFS is not set
> CONFIG_ACPI_AC=y
> CONFIG_ACPI_BATTERY=y
> CONFIG_ACPI_BUTTON=y
> CONFIG_ACPI_VIDEO=y
> CONFIG_ACPI_FAN=y
> CONFIG_ACPI_DOCK=y
> CONFIG_ACPI_CPU_FREQ_PSS=y
> CONFIG_ACPI_PROCESSOR_IDLE=y
> CONFIG_ACPI_PROCESSOR=y
> CONFIG_ACPI_HOTPLUG_CPU=y
> # CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
> CONFIG_ACPI_THERMAL=y
> CONFIG_ACPI_NUMA=y
> # CONFIG_ACPI_CUSTOM_DSDT is not set
> # CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set
> # CONFIG_ACPI_DEBUG is not set
> # CONFIG_ACPI_PCI_SLOT is not set
> CONFIG_X86_PM_TIMER=y
> CONFIG_ACPI_CONTAINER=y
> CONFIG_ACPI_HOTPLUG_IOAPIC=y
> # CONFIG_ACPI_SBS is not set
> # CONFIG_ACPI_HED is not set
> # CONFIG_ACPI_CUSTOM_METHOD is not set
> # CONFIG_ACPI_BGRT is not set
> # CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
> # CONFIG_ACPI_NFIT is not set
> CONFIG_HAVE_ACPI_APEI=y
> CONFIG_HAVE_ACPI_APEI_NMI=y
> # CONFIG_ACPI_APEI is not set
> # CONFIG_ACPI_EXTLOG is not set
> # CONFIG_PMIC_OPREGION is not set
> # CONFIG_SFI is not set
>
> #
> # CPU Frequency scaling
> #
> CONFIG_CPU_FREQ=y
> CONFIG_CPU_FREQ_GOV_COMMON=y
> # CONFIG_CPU_FREQ_STAT is not set
> # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
> # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
> CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
> # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
> # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
> CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
> # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
> CONFIG_CPU_FREQ_GOV_USERSPACE=y
> CONFIG_CPU_FREQ_GOV_ONDEMAND=y
> # CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>
> #
> # CPU frequency scaling drivers
> #
> # CONFIG_X86_INTEL_PSTATE is not set
> # CONFIG_X86_PCC_CPUFREQ is not set
> CONFIG_X86_ACPI_CPUFREQ=y
> CONFIG_X86_ACPI_CPUFREQ_CPB=y
> # CONFIG_X86_POWERNOW_K8 is not set
> # CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
> # CONFIG_X86_SPEEDSTEP_CENTRINO is not set
> # CONFIG_X86_P4_CLOCKMOD is not set
>
> #
> # shared options
> #
> # CONFIG_X86_SPEEDSTEP_LIB is not set
>
> #
> # CPU Idle
> #
> CONFIG_CPU_IDLE=y
> # CONFIG_CPU_IDLE_GOV_LADDER is not set
> CONFIG_CPU_IDLE_GOV_MENU=y
> # CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
> # CONFIG_INTEL_IDLE is not set
>
> #
> # Memory power savings
> #
> # CONFIG_I7300_IDLE is not set
>
> #
> # Bus options (PCI etc.)
> #
> CONFIG_PCI=y
> CONFIG_PCI_DIRECT=y
> CONFIG_PCI_MMCONFIG=y
> CONFIG_PCI_DOMAINS=y
> CONFIG_PCIEPORTBUS=y
> # CONFIG_HOTPLUG_PCI_PCIE is not set
> CONFIG_PCIEAER=y
> # CONFIG_PCIE_ECRC is not set
> # CONFIG_PCIEAER_INJECT is not set
> CONFIG_PCIEASPM=y
> # CONFIG_PCIEASPM_DEBUG is not set
> CONFIG_PCIEASPM_DEFAULT=y
> # CONFIG_PCIEASPM_POWERSAVE is not set
> # CONFIG_PCIEASPM_PERFORMANCE is not set
> CONFIG_PCIE_PME=y
> CONFIG_PCI_BUS_ADDR_T_64BIT=y
> CONFIG_PCI_MSI=y
> CONFIG_PCI_MSI_IRQ_DOMAIN=y
> # CONFIG_PCI_DEBUG is not set
> # CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
> # CONFIG_PCI_STUB is not set
> CONFIG_HT_IRQ=y
> CONFIG_PCI_ATS=y
> # CONFIG_PCI_IOV is not set
> CONFIG_PCI_PRI=y
> CONFIG_PCI_PASID=y
> CONFIG_PCI_LABEL=y
>
> #
> # PCI host controller drivers
> #
> CONFIG_ISA_DMA_API=y
> CONFIG_AMD_NB=y
> CONFIG_PCCARD=y
> CONFIG_PCMCIA=y
> CONFIG_PCMCIA_LOAD_CIS=y
> CONFIG_CARDBUS=y
>
> #
> # PC-card bridges
> #
> CONFIG_YENTA=y
> CONFIG_YENTA_O2=y
> CONFIG_YENTA_RICOH=y
> CONFIG_YENTA_TI=y
> CONFIG_YENTA_ENE_TUNE=y
> CONFIG_YENTA_TOSHIBA=y
> # CONFIG_PD6729 is not set
> # CONFIG_I82092 is not set
> CONFIG_PCCARD_NONSTATIC=y
> CONFIG_HOTPLUG_PCI=y
> # CONFIG_HOTPLUG_PCI_ACPI is not set
> # CONFIG_HOTPLUG_PCI_CPCI is not set
> # CONFIG_HOTPLUG_PCI_SHPC is not set
> # CONFIG_RAPIDIO is not set
> # CONFIG_X86_SYSFB is not set
>
> #
> # Executable file formats / Emulations
> #
> CONFIG_BINFMT_ELF=y
> CONFIG_COMPAT_BINFMT_ELF=y
> CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
> CONFIG_BINFMT_SCRIPT=y
> # CONFIG_HAVE_AOUT is not set
> CONFIG_BINFMT_MISC=y
> CONFIG_COREDUMP=y
> CONFIG_IA32_EMULATION=y
> # CONFIG_IA32_AOUT is not set
> # CONFIG_X86_X32 is not set
> CONFIG_COMPAT=y
> CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
> CONFIG_SYSVIPC_COMPAT=y
> CONFIG_KEYS_COMPAT=y
> CONFIG_X86_DEV_DMA_OPS=y
> CONFIG_PMC_ATOM=y
> # CONFIG_VMD is not set
> CONFIG_NET=y
> CONFIG_NET_INGRESS=y
>
> #
> # Networking options
> #
> CONFIG_PACKET=y
> # CONFIG_PACKET_DIAG is not set
> CONFIG_UNIX=y
> # CONFIG_UNIX_DIAG is not set
> CONFIG_XFRM=y
> CONFIG_XFRM_ALGO=y
> CONFIG_XFRM_USER=y
> # CONFIG_XFRM_SUB_POLICY is not set
> # CONFIG_XFRM_MIGRATE is not set
> # CONFIG_XFRM_STATISTICS is not set
> # CONFIG_NET_KEY is not set
> CONFIG_INET=y
> CONFIG_IP_MULTICAST=y
> CONFIG_IP_ADVANCED_ROUTER=y
> # CONFIG_IP_FIB_TRIE_STATS is not set
> CONFIG_IP_MULTIPLE_TABLES=y
> CONFIG_IP_ROUTE_MULTIPATH=y
> CONFIG_IP_ROUTE_VERBOSE=y
> CONFIG_IP_PNP=y
> CONFIG_IP_PNP_DHCP=y
> CONFIG_IP_PNP_BOOTP=y
> CONFIG_IP_PNP_RARP=y
> # CONFIG_NET_IPIP is not set
> # CONFIG_NET_IPGRE_DEMUX is not set
> CONFIG_NET_IP_TUNNEL=y
> CONFIG_IP_MROUTE=y
> # CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set
> CONFIG_IP_PIMSM_V1=y
> CONFIG_IP_PIMSM_V2=y
> CONFIG_SYN_COOKIES=y
> # CONFIG_NET_UDP_TUNNEL is not set
> # CONFIG_NET_FOU is not set
> # CONFIG_NET_FOU_IP_TUNNELS is not set
> # CONFIG_INET_AH is not set
> # CONFIG_INET_ESP is not set
> # CONFIG_INET_IPCOMP is not set
> # CONFIG_INET_XFRM_TUNNEL is not set
> CONFIG_INET_TUNNEL=y
> # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
> # CONFIG_INET_XFRM_MODE_TUNNEL is not set
> # CONFIG_INET_XFRM_MODE_BEET is not set
> CONFIG_INET_LRO=y
> # CONFIG_INET_DIAG is not set
> CONFIG_TCP_CONG_ADVANCED=y
> # CONFIG_TCP_CONG_BIC is not set
> CONFIG_TCP_CONG_CUBIC=y
> # CONFIG_TCP_CONG_WESTWOOD is not set
> # CONFIG_TCP_CONG_HTCP is not set
> # CONFIG_TCP_CONG_HSTCP is not set
> # CONFIG_TCP_CONG_HYBLA is not set
> # CONFIG_TCP_CONG_VEGAS is not set
> # CONFIG_TCP_CONG_SCALABLE is not set
> # CONFIG_TCP_CONG_LP is not set
> # CONFIG_TCP_CONG_VENO is not set
> # CONFIG_TCP_CONG_YEAH is not set
> # CONFIG_TCP_CONG_ILLINOIS is not set
> # CONFIG_TCP_CONG_DCTCP is not set
> # CONFIG_TCP_CONG_CDG is not set
> CONFIG_DEFAULT_CUBIC=y
> # CONFIG_DEFAULT_RENO is not set
> CONFIG_DEFAULT_TCP_CONG="cubic"
> CONFIG_TCP_MD5SIG=y
> CONFIG_IPV6=y
> # CONFIG_IPV6_ROUTER_PREF is not set
> # CONFIG_IPV6_OPTIMISTIC_DAD is not set
> CONFIG_INET6_AH=y
> CONFIG_INET6_ESP=y
> # CONFIG_INET6_IPCOMP is not set
> # CONFIG_IPV6_MIP6 is not set
> # CONFIG_IPV6_ILA is not set
> # CONFIG_INET6_XFRM_TUNNEL is not set
> # CONFIG_INET6_TUNNEL is not set
> CONFIG_INET6_XFRM_MODE_TRANSPORT=y
> CONFIG_INET6_XFRM_MODE_TUNNEL=y
> CONFIG_INET6_XFRM_MODE_BEET=y
> # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
> # CONFIG_IPV6_VTI is not set
> CONFIG_IPV6_SIT=y
> # CONFIG_IPV6_SIT_6RD is not set
> CONFIG_IPV6_NDISC_NODETYPE=y
> # CONFIG_IPV6_TUNNEL is not set
> # CONFIG_IPV6_GRE is not set
> # CONFIG_IPV6_MULTIPLE_TABLES is not set
> # CONFIG_IPV6_MROUTE is not set
> CONFIG_NETLABEL=y
> CONFIG_NETWORK_SECMARK=y
> CONFIG_NET_PTP_CLASSIFY=y
> # CONFIG_NETWORK_PHY_TIMESTAMPING is not set
> CONFIG_NETFILTER=y
> # CONFIG_NETFILTER_DEBUG is not set
> # CONFIG_NETFILTER_ADVANCED is not set
>
> #
> # Core Netfilter Configuration
> #
> CONFIG_NETFILTER_INGRESS=y
> CONFIG_NETFILTER_NETLINK=y
> CONFIG_NETFILTER_NETLINK_LOG=y
> CONFIG_NF_CONNTRACK=y
> CONFIG_NF_LOG_COMMON=m
> CONFIG_NF_CONNTRACK_SECMARK=y
> CONFIG_NF_CONNTRACK_PROCFS=y
> CONFIG_NF_CONNTRACK_FTP=y
> CONFIG_NF_CONNTRACK_IRC=y
> # CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
> CONFIG_NF_CONNTRACK_SIP=y
> CONFIG_NF_CT_NETLINK=y
> # CONFIG_NETFILTER_NETLINK_GLUE_CT is not set
> CONFIG_NF_NAT=m
> CONFIG_NF_NAT_NEEDED=y
> # CONFIG_NF_NAT_AMANDA is not set
> CONFIG_NF_NAT_FTP=m
> CONFIG_NF_NAT_IRC=m
> CONFIG_NF_NAT_SIP=m
> # CONFIG_NF_NAT_TFTP is not set
> # CONFIG_NF_NAT_REDIRECT is not set
> # CONFIG_NF_TABLES is not set
> CONFIG_NETFILTER_XTABLES=y
>
> #
> # Xtables combined modules
> #
> CONFIG_NETFILTER_XT_MARK=m
>
> #
> # Xtables targets
> #
> CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
> CONFIG_NETFILTER_XT_TARGET_LOG=m
> CONFIG_NETFILTER_XT_NAT=m
> # CONFIG_NETFILTER_XT_TARGET_NETMAP is not set
> CONFIG_NETFILTER_XT_TARGET_NFLOG=y
> # CONFIG_NETFILTER_XT_TARGET_REDIRECT is not set
> CONFIG_NETFILTER_XT_TARGET_SECMARK=y
> CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
>
> #
> # Xtables matches
> #
> CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
> CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
> CONFIG_NETFILTER_XT_MATCH_POLICY=y
> CONFIG_NETFILTER_XT_MATCH_STATE=y
> # CONFIG_IP_SET is not set
> # CONFIG_IP_VS is not set
>
> #
> # IP: Netfilter Configuration
> #
> CONFIG_NF_DEFRAG_IPV4=y
> CONFIG_NF_CONNTRACK_IPV4=y
> CONFIG_NF_CONNTRACK_PROC_COMPAT=y
> # CONFIG_NF_DUP_IPV4 is not set
> CONFIG_NF_LOG_ARP=m
> CONFIG_NF_LOG_IPV4=m
> CONFIG_NF_REJECT_IPV4=y
> CONFIG_NF_NAT_IPV4=m
> CONFIG_NF_NAT_MASQUERADE_IPV4=m
> # CONFIG_NF_NAT_PPTP is not set
> # CONFIG_NF_NAT_H323 is not set
> CONFIG_IP_NF_IPTABLES=y
> CONFIG_IP_NF_FILTER=y
> CONFIG_IP_NF_TARGET_REJECT=y
> CONFIG_IP_NF_NAT=m
> CONFIG_IP_NF_TARGET_MASQUERADE=m
> CONFIG_IP_NF_MANGLE=y
> # CONFIG_IP_NF_RAW is not set
>
> #
> # IPv6: Netfilter Configuration
> #
> CONFIG_NF_DEFRAG_IPV6=y
> CONFIG_NF_CONNTRACK_IPV6=y
> # CONFIG_NF_DUP_IPV6 is not set
> CONFIG_NF_REJECT_IPV6=y
> CONFIG_NF_LOG_IPV6=m
> CONFIG_IP6_NF_IPTABLES=y
> CONFIG_IP6_NF_MATCH_IPV6HEADER=y
> CONFIG_IP6_NF_FILTER=y
> CONFIG_IP6_NF_TARGET_REJECT=y
> CONFIG_IP6_NF_MANGLE=y
> # CONFIG_IP6_NF_RAW is not set
> # CONFIG_IP_DCCP is not set
> # CONFIG_IP_SCTP is not set
> # CONFIG_RDS is not set
> # CONFIG_TIPC is not set
> # CONFIG_ATM is not set
> # CONFIG_L2TP is not set
> # CONFIG_BRIDGE is not set
> CONFIG_HAVE_NET_DSA=y
> # CONFIG_VLAN_8021Q is not set
> # CONFIG_DECNET is not set
> # CONFIG_LLC2 is not set
> # CONFIG_IPX is not set
> # CONFIG_ATALK is not set
> # CONFIG_X25 is not set
> # CONFIG_LAPB is not set
> # CONFIG_PHONET is not set
> # CONFIG_6LOWPAN is not set
> # CONFIG_IEEE802154 is not set
> CONFIG_NET_SCHED=y
>
> #
> # Queueing/Scheduling
> #
> # CONFIG_NET_SCH_CBQ is not set
> # CONFIG_NET_SCH_HTB is not set
> # CONFIG_NET_SCH_HFSC is not set
> # CONFIG_NET_SCH_PRIO is not set
> # CONFIG_NET_SCH_MULTIQ is not set
> # CONFIG_NET_SCH_RED is not set
> # CONFIG_NET_SCH_SFB is not set
> # CONFIG_NET_SCH_SFQ is not set
> # CONFIG_NET_SCH_TEQL is not set
> # CONFIG_NET_SCH_TBF is not set
> # CONFIG_NET_SCH_GRED is not set
> # CONFIG_NET_SCH_DSMARK is not set
> # CONFIG_NET_SCH_NETEM is not set
> # CONFIG_NET_SCH_DRR is not set
> # CONFIG_NET_SCH_MQPRIO is not set
> # CONFIG_NET_SCH_CHOKE is not set
> # CONFIG_NET_SCH_QFQ is not set
> # CONFIG_NET_SCH_CODEL is not set
> # CONFIG_NET_SCH_FQ_CODEL is not set
> # CONFIG_NET_SCH_FQ is not set
> # CONFIG_NET_SCH_HHF is not set
> # CONFIG_NET_SCH_PIE is not set
> # CONFIG_NET_SCH_INGRESS is not set
> # CONFIG_NET_SCH_PLUG is not set
>
> #
> # Classification
> #
> CONFIG_NET_CLS=y
> # CONFIG_NET_CLS_BASIC is not set
> # CONFIG_NET_CLS_TCINDEX is not set
> # CONFIG_NET_CLS_ROUTE4 is not set
> # CONFIG_NET_CLS_FW is not set
> # CONFIG_NET_CLS_U32 is not set
> # CONFIG_NET_CLS_RSVP is not set
> # CONFIG_NET_CLS_RSVP6 is not set
> # CONFIG_NET_CLS_FLOW is not set
> # CONFIG_NET_CLS_CGROUP is not set
> # CONFIG_NET_CLS_BPF is not set
> # CONFIG_NET_CLS_FLOWER is not set
> CONFIG_NET_EMATCH=y
> CONFIG_NET_EMATCH_STACK=32
> # CONFIG_NET_EMATCH_CMP is not set
> # CONFIG_NET_EMATCH_NBYTE is not set
> # CONFIG_NET_EMATCH_U32 is not set
> # CONFIG_NET_EMATCH_META is not set
> # CONFIG_NET_EMATCH_TEXT is not set
> CONFIG_NET_CLS_ACT=y
> # CONFIG_NET_ACT_POLICE is not set
> # CONFIG_NET_ACT_GACT is not set
> # CONFIG_NET_ACT_MIRRED is not set
> # CONFIG_NET_ACT_IPT is not set
> # CONFIG_NET_ACT_NAT is not set
> # CONFIG_NET_ACT_PEDIT is not set
> # CONFIG_NET_ACT_SIMP is not set
> # CONFIG_NET_ACT_SKBEDIT is not set
> # CONFIG_NET_ACT_CSUM is not set
> # CONFIG_NET_ACT_VLAN is not set
> # CONFIG_NET_ACT_BPF is not set
> CONFIG_NET_SCH_FIFO=y
> # CONFIG_DCB is not set
> CONFIG_DNS_RESOLVER=y
> # CONFIG_BATMAN_ADV is not set
> # CONFIG_OPENVSWITCH is not set
> # CONFIG_VSOCKETS is not set
> # CONFIG_NETLINK_MMAP is not set
> # CONFIG_NETLINK_DIAG is not set
> # CONFIG_MPLS is not set
> # CONFIG_HSR is not set
> # CONFIG_NET_SWITCHDEV is not set
> # CONFIG_NET_L3_MASTER_DEV is not set
> CONFIG_RPS=y
> CONFIG_RFS_ACCEL=y
> CONFIG_XPS=y
> # CONFIG_SOCK_CGROUP_DATA is not set
> # CONFIG_CGROUP_NET_PRIO is not set
> # CONFIG_CGROUP_NET_CLASSID is not set
> CONFIG_NET_RX_BUSY_POLL=y
> CONFIG_BQL=y
> # CONFIG_BPF_JIT is not set
> CONFIG_NET_FLOW_LIMIT=y
>
> #
> # Network testing
> #
> # CONFIG_NET_PKTGEN is not set
> # CONFIG_NET_TCPPROBE is not set
> # CONFIG_NET_DROP_MONITOR is not set
> CONFIG_HAMRADIO=y
>
> #
> # Packet Radio protocols
> #
> # CONFIG_AX25 is not set
> # CONFIG_CAN is not set
> # CONFIG_IRDA is not set
> # CONFIG_BT is not set
> # CONFIG_AF_RXRPC is not set
> CONFIG_FIB_RULES=y
> CONFIG_WIRELESS=y
> CONFIG_CFG80211=y
> # CONFIG_NL80211_TESTMODE is not set
> # CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
> # CONFIG_CFG80211_REG_DEBUG is not set
> CONFIG_CFG80211_DEFAULT_PS=y
> # CONFIG_CFG80211_DEBUGFS is not set
> # CONFIG_CFG80211_INTERNAL_REGDB is not set
> CONFIG_CFG80211_CRDA_SUPPORT=y
> # CONFIG_CFG80211_WEXT is not set
> # CONFIG_LIB80211 is not set
> CONFIG_MAC80211=y
> CONFIG_MAC80211_HAS_RC=y
> CONFIG_MAC80211_RC_MINSTREL=y
> CONFIG_MAC80211_RC_MINSTREL_HT=y
> # CONFIG_MAC80211_RC_MINSTREL_VHT is not set
> CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
> CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
> # CONFIG_MAC80211_MESH is not set
> CONFIG_MAC80211_LEDS=y
> # CONFIG_MAC80211_DEBUGFS is not set
> # CONFIG_MAC80211_MESSAGE_TRACING is not set
> # CONFIG_MAC80211_DEBUG_MENU is not set
> CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
> # CONFIG_WIMAX is not set
> CONFIG_RFKILL=y
> CONFIG_RFKILL_LEDS=y
> CONFIG_RFKILL_INPUT=y
> # CONFIG_NET_9P is not set
> # CONFIG_CAIF is not set
> # CONFIG_CEPH_LIB is not set
> # CONFIG_NFC is not set
> # CONFIG_LWTUNNEL is not set
> CONFIG_HAVE_BPF_JIT=y
>
> #
> # Device Drivers
> #
>
> #
> # Generic Driver Options
> #
> CONFIG_UEVENT_HELPER=y
> CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
> CONFIG_DEVTMPFS=y
> CONFIG_DEVTMPFS_MOUNT=y
> CONFIG_STANDALONE=y
> CONFIG_PREVENT_FIRMWARE_BUILD=y
> CONFIG_FW_LOADER=y
> CONFIG_FIRMWARE_IN_KERNEL=y
> CONFIG_EXTRA_FIRMWARE=""
> # CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
> CONFIG_ALLOW_DEV_COREDUMP=y
> # CONFIG_DEBUG_DRIVER is not set
> CONFIG_DEBUG_DEVRES=y
> # CONFIG_SYS_HYPERVISOR is not set
> # CONFIG_GENERIC_CPU_DEVICES is not set
> CONFIG_GENERIC_CPU_AUTOPROBE=y
> CONFIG_REGMAP=y
> CONFIG_DMA_SHARED_BUFFER=y
> # CONFIG_FENCE_TRACE is not set
>
> #
> # Bus devices
> #
> CONFIG_CONNECTOR=y
> CONFIG_PROC_EVENTS=y
> # CONFIG_MTD is not set
> # CONFIG_OF is not set
> CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
> # CONFIG_PARPORT is not set
> CONFIG_PNP=y
> CONFIG_PNP_DEBUG_MESSAGES=y
>
> #
> # Protocols
> #
> CONFIG_PNPACPI=y
> CONFIG_BLK_DEV=y
> # CONFIG_BLK_DEV_NULL_BLK is not set
> # CONFIG_BLK_DEV_FD is not set
> # CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
> # CONFIG_BLK_CPQ_CISS_DA is not set
> # CONFIG_BLK_DEV_DAC960 is not set
> # CONFIG_BLK_DEV_UMEM is not set
> # CONFIG_BLK_DEV_COW_COMMON is not set
> CONFIG_BLK_DEV_LOOP=y
> CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
> # CONFIG_BLK_DEV_CRYPTOLOOP is not set
> # CONFIG_BLK_DEV_DRBD is not set
> # CONFIG_BLK_DEV_NBD is not set
> # CONFIG_BLK_DEV_SKD is not set
> # CONFIG_BLK_DEV_SX8 is not set
> # CONFIG_BLK_DEV_RAM is not set
> # CONFIG_CDROM_PKTCDVD is not set
> # CONFIG_ATA_OVER_ETH is not set
> # CONFIG_BLK_DEV_HD is not set
> # CONFIG_BLK_DEV_RBD is not set
> # CONFIG_BLK_DEV_RSXX is not set
> # CONFIG_BLK_DEV_NVME is not set
>
> #
> # Misc devices
> #
> # CONFIG_SENSORS_LIS3LV02D is not set
> # CONFIG_AD525X_DPOT is not set
> # CONFIG_DUMMY_IRQ is not set
> # CONFIG_IBM_ASM is not set
> # CONFIG_PHANTOM is not set
> # CONFIG_SGI_IOC4 is not set
> # CONFIG_TIFM_CORE is not set
> # CONFIG_ICS932S401 is not set
> # CONFIG_ENCLOSURE_SERVICES is not set
> # CONFIG_HP_ILO is not set
> # CONFIG_APDS9802ALS is not set
> # CONFIG_ISL29003 is not set
> # CONFIG_ISL29020 is not set
> # CONFIG_SENSORS_TSL2550 is not set
> # CONFIG_SENSORS_BH1780 is not set
> # CONFIG_SENSORS_BH1770 is not set
> # CONFIG_SENSORS_APDS990X is not set
> # CONFIG_HMC6352 is not set
> # CONFIG_DS1682 is not set
> # CONFIG_BMP085_I2C is not set
> # CONFIG_USB_SWITCH_FSA9480 is not set
> # CONFIG_SRAM is not set
> # CONFIG_C2PORT is not set
>
> #
> # EEPROM support
> #
> # CONFIG_EEPROM_AT24 is not set
> # CONFIG_EEPROM_LEGACY is not set
> # CONFIG_EEPROM_MAX6875 is not set
> # CONFIG_EEPROM_93CX6 is not set
> # CONFIG_CB710_CORE is not set
>
> #
> # Texas Instruments shared transport line discipline
> #
> # CONFIG_SENSORS_LIS3_I2C is not set
>
> #
> # Altera FPGA firmware download module
> #
> # CONFIG_ALTERA_STAPL is not set
> # CONFIG_VMWARE_VMCI is not set
>
> #
> # Intel MIC Bus Driver
> #
> # CONFIG_INTEL_MIC_BUS is not set
>
> #
> # SCIF Bus Driver
> #
> # CONFIG_SCIF_BUS is not set
>
> #
> # Intel MIC Host Driver
> #
>
> #
> # Intel MIC Card Driver
> #
>
> #
> # SCIF Driver
> #
>
> #
> # Intel MIC Coprocessor State Management (COSM) Drivers
> #
> # CONFIG_GENWQE is not set
> # CONFIG_ECHO is not set
> # CONFIG_CXL_BASE is not set
> # CONFIG_CXL_KERNEL_API is not set
> # CONFIG_CXL_EEH is not set
> CONFIG_HAVE_IDE=y
> # CONFIG_IDE is not set
>
> #
> # SCSI device support
> #
> CONFIG_SCSI_MOD=y
> # CONFIG_RAID_ATTRS is not set
> CONFIG_SCSI=y
> CONFIG_SCSI_DMA=y
> # CONFIG_SCSI_NETLINK is not set
> # CONFIG_SCSI_MQ_DEFAULT is not set
> CONFIG_SCSI_PROC_FS=y
>
> #
> # SCSI support type (disk, tape, CD-ROM)
> #
> CONFIG_BLK_DEV_SD=y
> # CONFIG_CHR_DEV_ST is not set
> # CONFIG_CHR_DEV_OSST is not set
> CONFIG_BLK_DEV_SR=y
> CONFIG_BLK_DEV_SR_VENDOR=y
> CONFIG_CHR_DEV_SG=y
> # CONFIG_CHR_DEV_SCH is not set
> CONFIG_SCSI_CONSTANTS=y
> # CONFIG_SCSI_LOGGING is not set
> # CONFIG_SCSI_SCAN_ASYNC is not set
>
> #
> # SCSI Transports
> #
> CONFIG_SCSI_SPI_ATTRS=y
> # CONFIG_SCSI_FC_ATTRS is not set
> # CONFIG_SCSI_ISCSI_ATTRS is not set
> # CONFIG_SCSI_SAS_ATTRS is not set
> # CONFIG_SCSI_SAS_LIBSAS is not set
> # CONFIG_SCSI_SRP_ATTRS is not set
> # CONFIG_SCSI_LOWLEVEL is not set
> # CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
> # CONFIG_SCSI_DH is not set
> # CONFIG_SCSI_OSD_INITIATOR is not set
> CONFIG_ATA=y
> # CONFIG_ATA_NONSTANDARD is not set
> CONFIG_ATA_VERBOSE_ERROR=y
> CONFIG_ATA_ACPI=y
> # CONFIG_SATA_ZPODD is not set
> CONFIG_SATA_PMP=y
>
> #
> # Controllers with non-SFF native interface
> #
> CONFIG_SATA_AHCI=y
> # CONFIG_SATA_AHCI_PLATFORM is not set
> # CONFIG_SATA_INIC162X is not set
> # CONFIG_SATA_ACARD_AHCI is not set
> # CONFIG_SATA_SIL24 is not set
> CONFIG_ATA_SFF=y
>
> #
> # SFF controllers with custom DMA interface
> #
> # CONFIG_PDC_ADMA is not set
> # CONFIG_SATA_QSTOR is not set
> # CONFIG_SATA_SX4 is not set
> CONFIG_ATA_BMDMA=y
>
> #
> # SATA SFF controllers with BMDMA
> #
> CONFIG_ATA_PIIX=y
> # CONFIG_SATA_MV is not set
> # CONFIG_SATA_NV is not set
> # CONFIG_SATA_PROMISE is not set
> # CONFIG_SATA_SIL is not set
> # CONFIG_SATA_SIS is not set
> # CONFIG_SATA_SVW is not set
> # CONFIG_SATA_ULI is not set
> # CONFIG_SATA_VIA is not set
> # CONFIG_SATA_VITESSE is not set
>
> #
> # PATA SFF controllers with BMDMA
> #
> # CONFIG_PATA_ALI is not set
> CONFIG_PATA_AMD=y
> # CONFIG_PATA_ARTOP is not set
> # CONFIG_PATA_ATIIXP is not set
> # CONFIG_PATA_ATP867X is not set
> # CONFIG_PATA_CMD64X is not set
> # CONFIG_PATA_CYPRESS is not set
> # CONFIG_PATA_EFAR is not set
> # CONFIG_PATA_HPT366 is not set
> # CONFIG_PATA_HPT37X is not set
> # CONFIG_PATA_HPT3X2N is not set
> # CONFIG_PATA_HPT3X3 is not set
> # CONFIG_PATA_IT8213 is not set
> # CONFIG_PATA_IT821X is not set
> # CONFIG_PATA_JMICRON is not set
> # CONFIG_PATA_MARVELL is not set
> # CONFIG_PATA_NETCELL is not set
> # CONFIG_PATA_NINJA32 is not set
> # CONFIG_PATA_NS87415 is not set
> CONFIG_PATA_OLDPIIX=y
> # CONFIG_PATA_OPTIDMA is not set
> # CONFIG_PATA_PDC2027X is not set
> # CONFIG_PATA_PDC_OLD is not set
> # CONFIG_PATA_RADISYS is not set
> # CONFIG_PATA_RDC is not set
> CONFIG_PATA_SCH=y
> # CONFIG_PATA_SERVERWORKS is not set
> # CONFIG_PATA_SIL680 is not set
> # CONFIG_PATA_SIS is not set
> # CONFIG_PATA_TOSHIBA is not set
> # CONFIG_PATA_TRIFLEX is not set
> # CONFIG_PATA_VIA is not set
> # CONFIG_PATA_WINBOND is not set
>
> #
> # PIO-only SFF controllers
> #
> # CONFIG_PATA_CMD640_PCI is not set
> # CONFIG_PATA_MPIIX is not set
> # CONFIG_PATA_NS87410 is not set
> # CONFIG_PATA_OPTI is not set
> # CONFIG_PATA_PCMCIA is not set
> # CONFIG_PATA_RZ1000 is not set
>
> #
> # Generic fallback / legacy drivers
> #
> # CONFIG_PATA_ACPI is not set
> # CONFIG_ATA_GENERIC is not set
> # CONFIG_PATA_LEGACY is not set
> CONFIG_MD=y
> CONFIG_BLK_DEV_MD=y
> CONFIG_MD_AUTODETECT=y
> # CONFIG_MD_LINEAR is not set
> # CONFIG_MD_RAID0 is not set
> # CONFIG_MD_RAID1 is not set
> # CONFIG_MD_RAID10 is not set
> # CONFIG_MD_RAID456 is not set
> # CONFIG_MD_MULTIPATH is not set
> # CONFIG_MD_FAULTY is not set
> # CONFIG_BCACHE is not set
> CONFIG_BLK_DEV_DM_BUILTIN=y
> CONFIG_BLK_DEV_DM=y
> # CONFIG_DM_MQ_DEFAULT is not set
> # CONFIG_DM_DEBUG is not set
> # CONFIG_DM_CRYPT is not set
> # CONFIG_DM_SNAPSHOT is not set
> # CONFIG_DM_THIN_PROVISIONING is not set
> # CONFIG_DM_CACHE is not set
> # CONFIG_DM_ERA is not set
> CONFIG_DM_MIRROR=y
> # CONFIG_DM_LOG_USERSPACE is not set
> # CONFIG_DM_RAID is not set
> CONFIG_DM_ZERO=y
> # CONFIG_DM_MULTIPATH is not set
> # CONFIG_DM_DELAY is not set
> # CONFIG_DM_UEVENT is not set
> # CONFIG_DM_FLAKEY is not set
> # CONFIG_DM_VERITY is not set
> # CONFIG_DM_SWITCH is not set
> # CONFIG_DM_LOG_WRITES is not set
> # CONFIG_TARGET_CORE is not set
> # CONFIG_FUSION is not set
>
> #
> # IEEE 1394 (FireWire) support
> #
> # CONFIG_FIREWIRE is not set
> # CONFIG_FIREWIRE_NOSY is not set
> CONFIG_MACINTOSH_DRIVERS=y
> CONFIG_MAC_EMUMOUSEBTN=y
> CONFIG_NETDEVICES=y
> CONFIG_MII=y
> CONFIG_NET_CORE=y
> # CONFIG_BONDING is not set
> # CONFIG_DUMMY is not set
> # CONFIG_EQUALIZER is not set
> # CONFIG_NET_FC is not set
> # CONFIG_IFB is not set
> # CONFIG_NET_TEAM is not set
> # CONFIG_MACVLAN is not set
> # CONFIG_IPVLAN is not set
> # CONFIG_VXLAN is not set
> CONFIG_NETCONSOLE=y
> CONFIG_NETPOLL=y
> CONFIG_NET_POLL_CONTROLLER=y
> # CONFIG_TUN is not set
> # CONFIG_TUN_VNET_CROSS_LE is not set
> # CONFIG_VETH is not set
> # CONFIG_NLMON is not set
> # CONFIG_ARCNET is not set
>
> #
> # CAIF transport drivers
> #
> # CONFIG_VHOST_NET is not set
> # CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
>
> #
> # Distributed Switch Architecture drivers
> #
> # CONFIG_NET_DSA_MV88E6XXX is not set
> # CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
> CONFIG_ETHERNET=y
> CONFIG_NET_VENDOR_3COM=y
> # CONFIG_PCMCIA_3C574 is not set
> # CONFIG_PCMCIA_3C589 is not set
> # CONFIG_VORTEX is not set
> # CONFIG_TYPHOON is not set
> CONFIG_NET_VENDOR_ADAPTEC=y
> # CONFIG_ADAPTEC_STARFIRE is not set
> CONFIG_NET_VENDOR_AGERE=y
> # CONFIG_ET131X is not set
> CONFIG_NET_VENDOR_ALTEON=y
> # CONFIG_ACENIC is not set
> # CONFIG_ALTERA_TSE is not set
> CONFIG_NET_VENDOR_AMD=y
> # CONFIG_AMD8111_ETH is not set
> # CONFIG_PCNET32 is not set
> # CONFIG_PCMCIA_NMCLAN is not set
> CONFIG_NET_VENDOR_ARC=y
> CONFIG_NET_VENDOR_ATHEROS=y
> # CONFIG_ATL2 is not set
> # CONFIG_ATL1 is not set
> # CONFIG_ATL1E is not set
> # CONFIG_ATL1C is not set
> # CONFIG_ALX is not set
> # CONFIG_NET_VENDOR_AURORA is not set
> CONFIG_NET_CADENCE=y
> # CONFIG_MACB is not set
> CONFIG_NET_VENDOR_BROADCOM=y
> # CONFIG_B44 is not set
> # CONFIG_BCMGENET is not set
> # CONFIG_BNX2 is not set
> # CONFIG_CNIC is not set
> CONFIG_TIGON3=y
> # CONFIG_BNX2X is not set
> # CONFIG_BNXT is not set
> CONFIG_NET_VENDOR_BROCADE=y
> # CONFIG_BNA is not set
> CONFIG_NET_VENDOR_CAVIUM=y
> # CONFIG_THUNDER_NIC_PF is not set
> # CONFIG_THUNDER_NIC_VF is not set
> # CONFIG_THUNDER_NIC_BGX is not set
> # CONFIG_LIQUIDIO is not set
> CONFIG_NET_VENDOR_CHELSIO=y
> # CONFIG_CHELSIO_T1 is not set
> # CONFIG_CHELSIO_T3 is not set
> # CONFIG_CHELSIO_T4 is not set
> # CONFIG_CHELSIO_T4VF is not set
> CONFIG_NET_VENDOR_CISCO=y
> # CONFIG_ENIC is not set
> # CONFIG_CX_ECAT is not set
> # CONFIG_DNET is not set
> CONFIG_NET_VENDOR_DEC=y
> CONFIG_NET_TULIP=y
> # CONFIG_DE2104X is not set
> # CONFIG_TULIP is not set
> # CONFIG_DE4X5 is not set
> # CONFIG_WINBOND_840 is not set
> # CONFIG_DM9102 is not set
> # CONFIG_ULI526X is not set
> # CONFIG_PCMCIA_XIRCOM is not set
> CONFIG_NET_VENDOR_DLINK=y
> # CONFIG_DL2K is not set
> # CONFIG_SUNDANCE is not set
> CONFIG_NET_VENDOR_EMULEX=y
> # CONFIG_BE2NET is not set
> CONFIG_NET_VENDOR_EZCHIP=y
> CONFIG_NET_VENDOR_EXAR=y
> # CONFIG_S2IO is not set
> # CONFIG_VXGE is not set
> CONFIG_NET_VENDOR_FUJITSU=y
> # CONFIG_PCMCIA_FMVJ18X is not set
> CONFIG_NET_VENDOR_HP=y
> # CONFIG_HP100 is not set
> CONFIG_NET_VENDOR_INTEL=y
> CONFIG_E100=y
> CONFIG_E1000=y
> # CONFIG_E1000E is not set
> # CONFIG_IGB is not set
> # CONFIG_IGBVF is not set
> # CONFIG_IXGB is not set
> # CONFIG_IXGBE is not set
> # CONFIG_IXGBEVF is not set
> # CONFIG_I40E is not set
> # CONFIG_I40EVF is not set
> # CONFIG_FM10K is not set
> CONFIG_NET_VENDOR_I825XX=y
> # CONFIG_JME is not set
> CONFIG_NET_VENDOR_MARVELL=y
> # CONFIG_MVMDIO is not set
> # CONFIG_SKGE is not set
> CONFIG_SKY2=y
> # CONFIG_SKY2_DEBUG is not set
> CONFIG_NET_VENDOR_MELLANOX=y
> # CONFIG_MLX4_EN is not set
> # CONFIG_MLX4_CORE is not set
> # CONFIG_MLX5_CORE is not set
> # CONFIG_MLXSW_CORE is not set
> CONFIG_NET_VENDOR_MICREL=y
> # CONFIG_KS8851_MLL is not set
> # CONFIG_KSZ884X_PCI is not set
> CONFIG_NET_VENDOR_MYRI=y
> # CONFIG_MYRI10GE is not set
> # CONFIG_FEALNX is not set
> CONFIG_NET_VENDOR_NATSEMI=y
> # CONFIG_NATSEMI is not set
> # CONFIG_NS83820 is not set
> CONFIG_NET_VENDOR_NETRONOME=y
> # CONFIG_NFP_NETVF is not set
> CONFIG_NET_VENDOR_8390=y
> # CONFIG_PCMCIA_AXNET is not set
> # CONFIG_NE2K_PCI is not set
> # CONFIG_PCMCIA_PCNET is not set
> CONFIG_NET_VENDOR_NVIDIA=y
> CONFIG_FORCEDETH=y
> CONFIG_NET_VENDOR_OKI=y
> # CONFIG_ETHOC is not set
> CONFIG_NET_PACKET_ENGINE=y
> # CONFIG_HAMACHI is not set
> # CONFIG_YELLOWFIN is not set
> CONFIG_NET_VENDOR_QLOGIC=y
> # CONFIG_QLA3XXX is not set
> # CONFIG_QLCNIC is not set
> # CONFIG_QLGE is not set
> # CONFIG_NETXEN_NIC is not set
> # CONFIG_QED is not set
> CONFIG_NET_VENDOR_QUALCOMM=y
> CONFIG_NET_VENDOR_REALTEK=y
> # CONFIG_8139CP is not set
> CONFIG_8139TOO=y
> CONFIG_8139TOO_PIO=y
> # CONFIG_8139TOO_TUNE_TWISTER is not set
> # CONFIG_8139TOO_8129 is not set
> # CONFIG_8139_OLD_RX_RESET is not set
> # CONFIG_R8169 is not set
> CONFIG_NET_VENDOR_RENESAS=y
> CONFIG_NET_VENDOR_RDC=y
> # CONFIG_R6040 is not set
> CONFIG_NET_VENDOR_ROCKER=y
> CONFIG_NET_VENDOR_SAMSUNG=y
> # CONFIG_SXGBE_ETH is not set
> CONFIG_NET_VENDOR_SEEQ=y
> CONFIG_NET_VENDOR_SILAN=y
> # CONFIG_SC92031 is not set
> CONFIG_NET_VENDOR_SIS=y
> # CONFIG_SIS900 is not set
> # CONFIG_SIS190 is not set
> # CONFIG_SFC is not set
> CONFIG_NET_VENDOR_SMSC=y
> # CONFIG_PCMCIA_SMC91C92 is not set
> # CONFIG_EPIC100 is not set
> # CONFIG_SMSC911X is not set
> # CONFIG_SMSC9420 is not set
> CONFIG_NET_VENDOR_STMICRO=y
> # CONFIG_STMMAC_ETH is not set
> CONFIG_NET_VENDOR_SUN=y
> # CONFIG_HAPPYMEAL is not set
> # CONFIG_SUNGEM is not set
> # CONFIG_CASSINI is not set
> # CONFIG_NIU is not set
> CONFIG_NET_VENDOR_SYNOPSYS=y
> CONFIG_NET_VENDOR_TEHUTI=y
> # CONFIG_TEHUTI is not set
> CONFIG_NET_VENDOR_TI=y
> # CONFIG_TI_CPSW_ALE is not set
> # CONFIG_TLAN is not set
> CONFIG_NET_VENDOR_VIA=y
> # CONFIG_VIA_RHINE is not set
> # CONFIG_VIA_VELOCITY is not set
> CONFIG_NET_VENDOR_WIZNET=y
> # CONFIG_WIZNET_W5100 is not set
> # CONFIG_WIZNET_W5300 is not set
> CONFIG_NET_VENDOR_XIRCOM=y
> # CONFIG_PCMCIA_XIRC2PS is not set
> CONFIG_FDDI=y
> # CONFIG_DEFXX is not set
> # CONFIG_SKFP is not set
> # CONFIG_HIPPI is not set
> # CONFIG_NET_SB1000 is not set
> CONFIG_PHYLIB=y
>
> #
> # MII PHY device drivers
> #
> # CONFIG_AQUANTIA_PHY is not set
> # CONFIG_AT803X_PHY is not set
> # CONFIG_AMD_PHY is not set
> # CONFIG_MARVELL_PHY is not set
> # CONFIG_DAVICOM_PHY is not set
> # CONFIG_QSEMI_PHY is not set
> # CONFIG_LXT_PHY is not set
> # CONFIG_CICADA_PHY is not set
> # CONFIG_VITESSE_PHY is not set
> # CONFIG_TERANETICS_PHY is not set
> # CONFIG_SMSC_PHY is not set
> # CONFIG_BROADCOM_PHY is not set
> # CONFIG_BCM7XXX_PHY is not set
> # CONFIG_BCM87XX_PHY is not set
> # CONFIG_ICPLUS_PHY is not set
> # CONFIG_REALTEK_PHY is not set
> # CONFIG_NATIONAL_PHY is not set
> # CONFIG_STE10XP is not set
> # CONFIG_LSI_ET1011C_PHY is not set
> # CONFIG_MICREL_PHY is not set
> # CONFIG_DP83848_PHY is not set
> # CONFIG_DP83867_PHY is not set
> # CONFIG_MICROCHIP_PHY is not set
> # CONFIG_FIXED_PHY is not set
> # CONFIG_MDIO_BITBANG is not set
> # CONFIG_MDIO_OCTEON is not set
> # CONFIG_MDIO_BCM_UNIMAC is not set
> # CONFIG_PPP is not set
> # CONFIG_SLIP is not set
> CONFIG_USB_NET_DRIVERS=y
> # CONFIG_USB_CATC is not set
> # CONFIG_USB_KAWETH is not set
> # CONFIG_USB_PEGASUS is not set
> # CONFIG_USB_RTL8150 is not set
> # CONFIG_USB_RTL8152 is not set
> # CONFIG_USB_LAN78XX is not set
> # CONFIG_USB_USBNET is not set
> # CONFIG_USB_HSO is not set
> # CONFIG_USB_IPHETH is not set
> CONFIG_WLAN=y
> CONFIG_WLAN_VENDOR_ADMTEK=y
> # CONFIG_ADM8211 is not set
> CONFIG_WLAN_VENDOR_ATH=y
> # CONFIG_ATH_DEBUG is not set
> # CONFIG_ATH5K is not set
> # CONFIG_ATH5K_PCI is not set
> # CONFIG_ATH9K is not set
> # CONFIG_ATH9K_HTC is not set
> # CONFIG_CARL9170 is not set
> # CONFIG_ATH6KL is not set
> # CONFIG_AR5523 is not set
> # CONFIG_WIL6210 is not set
> # CONFIG_ATH10K is not set
> # CONFIG_WCN36XX is not set
> CONFIG_WLAN_VENDOR_ATMEL=y
> # CONFIG_ATMEL is not set
> # CONFIG_AT76C50X_USB is not set
> CONFIG_WLAN_VENDOR_BROADCOM=y
> # CONFIG_B43 is not set
> # CONFIG_B43LEGACY is not set
> # CONFIG_BRCMSMAC is not set
> # CONFIG_BRCMFMAC is not set
> CONFIG_WLAN_VENDOR_CISCO=y
> # CONFIG_AIRO is not set
> # CONFIG_AIRO_CS is not set
> CONFIG_WLAN_VENDOR_INTEL=y
> # CONFIG_IPW2100 is not set
> # CONFIG_IPW2200 is not set
> # CONFIG_IWL4965 is not set
> # CONFIG_IWL3945 is not set
> # CONFIG_IWLWIFI is not set
> CONFIG_WLAN_VENDOR_INTERSIL=y
> # CONFIG_HOSTAP is not set
> # CONFIG_HERMES is not set
> # CONFIG_P54_COMMON is not set
> # CONFIG_PRISM54 is not set
> CONFIG_WLAN_VENDOR_MARVELL=y
> # CONFIG_LIBERTAS is not set
> # CONFIG_LIBERTAS_THINFIRM is not set
> # CONFIG_MWIFIEX is not set
> # CONFIG_MWL8K is not set
> CONFIG_WLAN_VENDOR_MEDIATEK=y
> # CONFIG_MT7601U is not set
> CONFIG_WLAN_VENDOR_RALINK=y
> # CONFIG_RT2X00 is not set
> CONFIG_WLAN_VENDOR_REALTEK=y
> # CONFIG_RTL8180 is not set
> # CONFIG_RTL8187 is not set
> CONFIG_RTL_CARDS=y
> # CONFIG_RTL8192CE is not set
> # CONFIG_RTL8192SE is not set
> # CONFIG_RTL8192DE is not set
> # CONFIG_RTL8723AE is not set
> # CONFIG_RTL8723BE is not set
> # CONFIG_RTL8188EE is not set
> # CONFIG_RTL8192EE is not set
> # CONFIG_RTL8821AE is not set
> # CONFIG_RTL8192CU is not set
> # CONFIG_RTL8XXXU is not set
> CONFIG_WLAN_VENDOR_RSI=y
> # CONFIG_RSI_91X is not set
> CONFIG_WLAN_VENDOR_ST=y
> # CONFIG_CW1200 is not set
> CONFIG_WLAN_VENDOR_TI=y
> # CONFIG_WL1251 is not set
> # CONFIG_WL12XX is not set
> # CONFIG_WL18XX is not set
> # CONFIG_WLCORE is not set
> CONFIG_WLAN_VENDOR_ZYDAS=y
> # CONFIG_USB_ZD1201 is not set
> # CONFIG_ZD1211RW is not set
> # CONFIG_PCMCIA_RAYCS is not set
> # CONFIG_PCMCIA_WL3501 is not set
> # CONFIG_MAC80211_HWSIM is not set
> # CONFIG_USB_NET_RNDIS_WLAN is not set
>
> #
> # Enable WiMAX (Networking options) to see the WiMAX drivers
> #
> # CONFIG_WAN is not set
> # CONFIG_VMXNET3 is not set
> # CONFIG_FUJITSU_ES is not set
> # CONFIG_ISDN is not set
> # CONFIG_NVM is not set
>
> #
> # Input device support
> #
> CONFIG_INPUT=y
> CONFIG_INPUT_LEDS=y
> CONFIG_INPUT_FF_MEMLESS=y
> CONFIG_INPUT_POLLDEV=y
> CONFIG_INPUT_SPARSEKMAP=y
> # CONFIG_INPUT_MATRIXKMAP is not set
>
> #
> # Userland interfaces
> #
> CONFIG_INPUT_MOUSEDEV=y
> # CONFIG_INPUT_MOUSEDEV_PSAUX is not set
> CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
> CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
> # CONFIG_INPUT_JOYDEV is not set
> CONFIG_INPUT_EVDEV=y
> # CONFIG_INPUT_EVBUG is not set
>
> #
> # Input Device Drivers
> #
> CONFIG_INPUT_KEYBOARD=y
> # CONFIG_KEYBOARD_ADP5588 is not set
> # CONFIG_KEYBOARD_ADP5589 is not set
> CONFIG_KEYBOARD_ATKBD=y
> # CONFIG_KEYBOARD_QT1070 is not set
> # CONFIG_KEYBOARD_QT2160 is not set
> # CONFIG_KEYBOARD_LKKBD is not set
> # CONFIG_KEYBOARD_TCA6416 is not set
> # CONFIG_KEYBOARD_TCA8418 is not set
> # CONFIG_KEYBOARD_LM8323 is not set
> # CONFIG_KEYBOARD_LM8333 is not set
> # CONFIG_KEYBOARD_MAX7359 is not set
> # CONFIG_KEYBOARD_MCS is not set
> # CONFIG_KEYBOARD_MPR121 is not set
> # CONFIG_KEYBOARD_NEWTON is not set
> # CONFIG_KEYBOARD_OPENCORES is not set
> # CONFIG_KEYBOARD_STOWAWAY is not set
> # CONFIG_KEYBOARD_SUNKBD is not set
> # CONFIG_KEYBOARD_XTKBD is not set
> CONFIG_INPUT_MOUSE=y
> CONFIG_MOUSE_PS2=y
> CONFIG_MOUSE_PS2_ALPS=y
> CONFIG_MOUSE_PS2_LOGIPS2PP=y
> CONFIG_MOUSE_PS2_SYNAPTICS=y
> CONFIG_MOUSE_PS2_CYPRESS=y
> CONFIG_MOUSE_PS2_LIFEBOOK=y
> CONFIG_MOUSE_PS2_TRACKPOINT=y
> # CONFIG_MOUSE_PS2_ELANTECH is not set
> # CONFIG_MOUSE_PS2_SENTELIC is not set
> # CONFIG_MOUSE_PS2_TOUCHKIT is not set
> CONFIG_MOUSE_PS2_FOCALTECH=y
> # CONFIG_MOUSE_SERIAL is not set
> # CONFIG_MOUSE_APPLETOUCH is not set
> # CONFIG_MOUSE_BCM5974 is not set
> # CONFIG_MOUSE_CYAPA is not set
> # CONFIG_MOUSE_ELAN_I2C is not set
> # CONFIG_MOUSE_VSXXXAA is not set
> # CONFIG_MOUSE_SYNAPTICS_I2C is not set
> # CONFIG_MOUSE_SYNAPTICS_USB is not set
> CONFIG_INPUT_JOYSTICK=y
> # CONFIG_JOYSTICK_ANALOG is not set
> # CONFIG_JOYSTICK_A3D is not set
> # CONFIG_JOYSTICK_ADI is not set
> # CONFIG_JOYSTICK_COBRA is not set
> # CONFIG_JOYSTICK_GF2K is not set
> # CONFIG_JOYSTICK_GRIP is not set
> # CONFIG_JOYSTICK_GRIP_MP is not set
> # CONFIG_JOYSTICK_GUILLEMOT is not set
> # CONFIG_JOYSTICK_INTERACT is not set
> # CONFIG_JOYSTICK_SIDEWINDER is not set
> # CONFIG_JOYSTICK_TMDC is not set
> # CONFIG_JOYSTICK_IFORCE is not set
> # CONFIG_JOYSTICK_WARRIOR is not set
> # CONFIG_JOYSTICK_MAGELLAN is not set
> # CONFIG_JOYSTICK_SPACEORB is not set
> # CONFIG_JOYSTICK_SPACEBALL is not set
> # CONFIG_JOYSTICK_STINGER is not set
> # CONFIG_JOYSTICK_TWIDJOY is not set
> # CONFIG_JOYSTICK_ZHENHUA is not set
> # CONFIG_JOYSTICK_AS5011 is not set
> # CONFIG_JOYSTICK_JOYDUMP is not set
> # CONFIG_JOYSTICK_XPAD is not set
> CONFIG_INPUT_TABLET=y
> # CONFIG_TABLET_USB_ACECAD is not set
> # CONFIG_TABLET_USB_AIPTEK is not set
> # CONFIG_TABLET_USB_GTCO is not set
> # CONFIG_TABLET_USB_HANWANG is not set
> # CONFIG_TABLET_USB_KBTAB is not set
> # CONFIG_TABLET_SERIAL_WACOM4 is not set
> CONFIG_INPUT_TOUCHSCREEN=y
> CONFIG_TOUCHSCREEN_PROPERTIES=y
> # CONFIG_TOUCHSCREEN_AD7879 is not set
> # CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
> # CONFIG_TOUCHSCREEN_BU21013 is not set
> # CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
> # CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
> # CONFIG_TOUCHSCREEN_DYNAPRO is not set
> # CONFIG_TOUCHSCREEN_HAMPSHIRE is not set
> # CONFIG_TOUCHSCREEN_EETI is not set
> # CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set
> # CONFIG_TOUCHSCREEN_FUJITSU is not set
> # CONFIG_TOUCHSCREEN_ILI210X is not set
> # CONFIG_TOUCHSCREEN_GUNZE is not set
> # CONFIG_TOUCHSCREEN_ELAN is not set
> # CONFIG_TOUCHSCREEN_ELO is not set
> # CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
> # CONFIG_TOUCHSCREEN_WACOM_I2C is not set
> # CONFIG_TOUCHSCREEN_MAX11801 is not set
> # CONFIG_TOUCHSCREEN_MCS5000 is not set
> # CONFIG_TOUCHSCREEN_MMS114 is not set
> # CONFIG_TOUCHSCREEN_MTOUCH is not set
> # CONFIG_TOUCHSCREEN_INEXIO is not set
> # CONFIG_TOUCHSCREEN_MK712 is not set
> # CONFIG_TOUCHSCREEN_PENMOUNT is not set
> # CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
> # CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
> # CONFIG_TOUCHSCREEN_TOUCHWIN is not set
> # CONFIG_TOUCHSCREEN_PIXCIR is not set
> # CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set
> # CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
> # CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
> # CONFIG_TOUCHSCREEN_TSC_SERIO is not set
> # CONFIG_TOUCHSCREEN_TSC2004 is not set
> # CONFIG_TOUCHSCREEN_TSC2007 is not set
> # CONFIG_TOUCHSCREEN_ST1232 is not set
> # CONFIG_TOUCHSCREEN_SX8654 is not set
> # CONFIG_TOUCHSCREEN_TPS6507X is not set
> # CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set
> CONFIG_INPUT_MISC=y
> # CONFIG_INPUT_AD714X is not set
> # CONFIG_INPUT_BMA150 is not set
> # CONFIG_INPUT_E3X0_BUTTON is not set
> # CONFIG_INPUT_PCSPKR is not set
> # CONFIG_INPUT_MMA8450 is not set
> # CONFIG_INPUT_MPU3050 is not set
> # CONFIG_INPUT_APANEL is not set
> # CONFIG_INPUT_ATLAS_BTNS is not set
> # CONFIG_INPUT_ATI_REMOTE2 is not set
> # CONFIG_INPUT_KEYSPAN_REMOTE is not set
> # CONFIG_INPUT_KXTJ9 is not set
> # CONFIG_INPUT_POWERMATE is not set
> # CONFIG_INPUT_YEALINK is not set
> # CONFIG_INPUT_CM109 is not set
> # CONFIG_INPUT_UINPUT is not set
> # CONFIG_INPUT_PCF8574 is not set
> # CONFIG_INPUT_ADXL34X is not set
> # CONFIG_INPUT_IMS_PCU is not set
> # CONFIG_INPUT_CMA3000 is not set
> # CONFIG_INPUT_IDEAPAD_SLIDEBAR is not set
> # CONFIG_INPUT_DRV2665_HAPTICS is not set
> # CONFIG_INPUT_DRV2667_HAPTICS is not set
>
> #
> # Hardware I/O ports
> #
> CONFIG_SERIO=y
> CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
> CONFIG_SERIO_I8042=y
> CONFIG_SERIO_SERPORT=y
> # CONFIG_SERIO_CT82C710 is not set
> # CONFIG_SERIO_PCIPS2 is not set
> CONFIG_SERIO_LIBPS2=y
> # CONFIG_SERIO_RAW is not set
> # CONFIG_SERIO_ALTERA_PS2 is not set
> # CONFIG_SERIO_PS2MULT is not set
> # CONFIG_SERIO_ARC_PS2 is not set
> # CONFIG_USERIO is not set
> # CONFIG_GAMEPORT is not set
>
> #
> # Character devices
> #
> CONFIG_TTY=y
> CONFIG_VT=y
> CONFIG_CONSOLE_TRANSLATIONS=y
> CONFIG_VT_CONSOLE=y
> CONFIG_VT_CONSOLE_SLEEP=y
> CONFIG_HW_CONSOLE=y
> CONFIG_VT_HW_CONSOLE_BINDING=y
> CONFIG_UNIX98_PTYS=y
> # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
> # CONFIG_LEGACY_PTYS is not set
> CONFIG_SERIAL_NONSTANDARD=y
> # CONFIG_ROCKETPORT is not set
> # CONFIG_CYCLADES is not set
> # CONFIG_MOXA_INTELLIO is not set
> # CONFIG_MOXA_SMARTIO is not set
> # CONFIG_SYNCLINK is not set
> # CONFIG_SYNCLINKMP is not set
> # CONFIG_SYNCLINK_GT is not set
> # CONFIG_NOZOMI is not set
> # CONFIG_ISI is not set
> # CONFIG_N_HDLC is not set
> # CONFIG_N_GSM is not set
> # CONFIG_TRACE_SINK is not set
> CONFIG_DEVMEM=y
> CONFIG_DEVKMEM=y
>
> #
> # Serial drivers
> #
> CONFIG_SERIAL_EARLYCON=y
> CONFIG_SERIAL_8250=y
> CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
> CONFIG_SERIAL_8250_PNP=y
> CONFIG_SERIAL_8250_CONSOLE=y
> CONFIG_SERIAL_8250_DMA=y
> CONFIG_SERIAL_8250_PCI=y
> # CONFIG_SERIAL_8250_CS is not set
> CONFIG_SERIAL_8250_NR_UARTS=32
> CONFIG_SERIAL_8250_RUNTIME_UARTS=4
> CONFIG_SERIAL_8250_EXTENDED=y
> CONFIG_SERIAL_8250_MANY_PORTS=y
> CONFIG_SERIAL_8250_SHARE_IRQ=y
> CONFIG_SERIAL_8250_DETECT_IRQ=y
> CONFIG_SERIAL_8250_RSA=y
> # CONFIG_SERIAL_8250_FSL is not set
> # CONFIG_SERIAL_8250_DW is not set
> # CONFIG_SERIAL_8250_RT288X is not set
> # CONFIG_SERIAL_8250_FINTEK is not set
> # CONFIG_SERIAL_8250_MID is not set
>
> #
> # Non-8250 serial port support
> #
> # CONFIG_SERIAL_UARTLITE is not set
> CONFIG_SERIAL_CORE=y
> CONFIG_SERIAL_CORE_CONSOLE=y
> # CONFIG_SERIAL_JSM is not set
> # CONFIG_SERIAL_SCCNXP is not set
> # CONFIG_SERIAL_SC16IS7XX is not set
> # CONFIG_SERIAL_ALTERA_JTAGUART is not set
> # CONFIG_SERIAL_ALTERA_UART is not set
> # CONFIG_SERIAL_ARC is not set
> # CONFIG_SERIAL_RP2 is not set
> # CONFIG_SERIAL_FSL_LPUART is not set
> # CONFIG_IPMI_HANDLER is not set
> CONFIG_HW_RANDOM=y
> # CONFIG_HW_RANDOM_TIMERIOMEM is not set
> # CONFIG_HW_RANDOM_INTEL is not set
> # CONFIG_HW_RANDOM_AMD is not set
> CONFIG_HW_RANDOM_VIA=y
> CONFIG_NVRAM=y
> # CONFIG_R3964 is not set
> # CONFIG_APPLICOM is not set
>
> #
> # PCMCIA character devices
> #
> # CONFIG_SYNCLINK_CS is not set
> # CONFIG_CARDMAN_4000 is not set
> # CONFIG_CARDMAN_4040 is not set
> # CONFIG_IPWIRELESS is not set
> # CONFIG_MWAVE is not set
> # CONFIG_RAW_DRIVER is not set
> CONFIG_HPET=y
> # CONFIG_HPET_MMAP is not set
> # CONFIG_HANGCHECK_TIMER is not set
> # CONFIG_TCG_TPM is not set
> # CONFIG_TELCLOCK is not set
> CONFIG_DEVPORT=y
> # CONFIG_XILLYBUS is not set
>
> #
> # I2C support
> #
> CONFIG_I2C=y
> CONFIG_ACPI_I2C_OPREGION=y
> CONFIG_I2C_BOARDINFO=y
> CONFIG_I2C_COMPAT=y
> # CONFIG_I2C_CHARDEV is not set
> # CONFIG_I2C_MUX is not set
> CONFIG_I2C_HELPER_AUTO=y
> CONFIG_I2C_ALGOBIT=y
>
> #
> # I2C Hardware Bus support
> #
>
> #
> # PC SMBus host controller drivers
> #
> # CONFIG_I2C_ALI1535 is not set
> # CONFIG_I2C_ALI1563 is not set
> # CONFIG_I2C_ALI15X3 is not set
> # CONFIG_I2C_AMD756 is not set
> # CONFIG_I2C_AMD8111 is not set
> CONFIG_I2C_I801=y
> # CONFIG_I2C_ISCH is not set
> # CONFIG_I2C_ISMT is not set
> # CONFIG_I2C_PIIX4 is not set
> # CONFIG_I2C_NFORCE2 is not set
> # CONFIG_I2C_SIS5595 is not set
> # CONFIG_I2C_SIS630 is not set
> # CONFIG_I2C_SIS96X is not set
> # CONFIG_I2C_VIA is not set
> # CONFIG_I2C_VIAPRO is not set
>
> #
> # ACPI drivers
> #
> # CONFIG_I2C_SCMI is not set
>
> #
> # I2C system bus drivers (mostly embedded / system-on-chip)
> #
> # CONFIG_I2C_DESIGNWARE_PCI is not set
> # CONFIG_I2C_OCORES is not set
> # CONFIG_I2C_PCA_PLATFORM is not set
> # CONFIG_I2C_PXA_PCI is not set
> # CONFIG_I2C_SIMTEC is not set
> # CONFIG_I2C_XILINX is not set
>
> #
> # External I2C/SMBus adapter drivers
> #
> # CONFIG_I2C_DIOLAN_U2C is not set
> # CONFIG_I2C_PARPORT_LIGHT is not set
> # CONFIG_I2C_ROBOTFUZZ_OSIF is not set
> # CONFIG_I2C_TAOS_EVM is not set
> # CONFIG_I2C_TINY_USB is not set
>
> #
> # Other I2C/SMBus bus drivers
> #
> # CONFIG_I2C_STUB is not set
> # CONFIG_I2C_SLAVE is not set
> # CONFIG_I2C_DEBUG_CORE is not set
> # CONFIG_I2C_DEBUG_ALGO is not set
> # CONFIG_I2C_DEBUG_BUS is not set
> # CONFIG_SPI is not set
> # CONFIG_SPMI is not set
> # CONFIG_HSI is not set
>
> #
> # PPS support
> #
> CONFIG_PPS=y
> # CONFIG_PPS_DEBUG is not set
>
> #
> # PPS clients support
> #
> # CONFIG_PPS_CLIENT_KTIMER is not set
> # CONFIG_PPS_CLIENT_LDISC is not set
> # CONFIG_PPS_CLIENT_GPIO is not set
>
> #
> # PPS generators support
> #
>
> #
> # PTP clock support
> #
> CONFIG_PTP_1588_CLOCK=y
>
> #
> # Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
> #
> CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
> # CONFIG_GPIOLIB is not set
> # CONFIG_W1 is not set
> CONFIG_POWER_SUPPLY=y
> # CONFIG_POWER_SUPPLY_DEBUG is not set
> # CONFIG_PDA_POWER is not set
> # CONFIG_TEST_POWER is not set
> # CONFIG_BATTERY_DS2780 is not set
> # CONFIG_BATTERY_DS2781 is not set
> # CONFIG_BATTERY_DS2782 is not set
> # CONFIG_BATTERY_SBS is not set
> # CONFIG_BATTERY_BQ27XXX is not set
> # CONFIG_BATTERY_MAX17040 is not set
> # CONFIG_BATTERY_MAX17042 is not set
> # CONFIG_CHARGER_MAX8903 is not set
> # CONFIG_CHARGER_LP8727 is not set
> # CONFIG_CHARGER_BQ2415X is not set
> # CONFIG_CHARGER_SMB347 is not set
> # CONFIG_BATTERY_GAUGE_LTC2941 is not set
> # CONFIG_POWER_RESET is not set
> # CONFIG_POWER_AVS is not set
> CONFIG_HWMON=y
> # CONFIG_HWMON_VID is not set
> # CONFIG_HWMON_DEBUG_CHIP is not set
>
> #
> # Native drivers
> #
> # CONFIG_SENSORS_ABITUGURU is not set
> # CONFIG_SENSORS_ABITUGURU3 is not set
> # CONFIG_SENSORS_AD7414 is not set
> # CONFIG_SENSORS_AD7418 is not set
> # CONFIG_SENSORS_ADM1021 is not set
> # CONFIG_SENSORS_ADM1025 is not set
> # CONFIG_SENSORS_ADM1026 is not set
> # CONFIG_SENSORS_ADM1029 is not set
> # CONFIG_SENSORS_ADM1031 is not set
> # CONFIG_SENSORS_ADM9240 is not set
> # CONFIG_SENSORS_ADT7410 is not set
> # CONFIG_SENSORS_ADT7411 is not set
> # CONFIG_SENSORS_ADT7462 is not set
> # CONFIG_SENSORS_ADT7470 is not set
> # CONFIG_SENSORS_ADT7475 is not set
> # CONFIG_SENSORS_ASC7621 is not set
> # CONFIG_SENSORS_K8TEMP is not set
> # CONFIG_SENSORS_K10TEMP is not set
> # CONFIG_SENSORS_FAM15H_POWER is not set
> # CONFIG_SENSORS_APPLESMC is not set
> # CONFIG_SENSORS_ASB100 is not set
> # CONFIG_SENSORS_ATXP1 is not set
> # CONFIG_SENSORS_DS620 is not set
> # CONFIG_SENSORS_DS1621 is not set
> # CONFIG_SENSORS_DELL_SMM is not set
> # CONFIG_SENSORS_I5K_AMB is not set
> # CONFIG_SENSORS_F71805F is not set
> # CONFIG_SENSORS_F71882FG is not set
> # CONFIG_SENSORS_F75375S is not set
> # CONFIG_SENSORS_FSCHMD is not set
> # CONFIG_SENSORS_GL518SM is not set
> # CONFIG_SENSORS_GL520SM is not set
> # CONFIG_SENSORS_G760A is not set
> # CONFIG_SENSORS_G762 is not set
> # CONFIG_SENSORS_HIH6130 is not set
> # CONFIG_SENSORS_I5500 is not set
> # CONFIG_SENSORS_CORETEMP is not set
> # CONFIG_SENSORS_IT87 is not set
> # CONFIG_SENSORS_JC42 is not set
> # CONFIG_SENSORS_POWR1220 is not set
> # CONFIG_SENSORS_LINEAGE is not set
> # CONFIG_SENSORS_LTC2945 is not set
> # CONFIG_SENSORS_LTC4151 is not set
> # CONFIG_SENSORS_LTC4215 is not set
> # CONFIG_SENSORS_LTC4222 is not set
> # CONFIG_SENSORS_LTC4245 is not set
> # CONFIG_SENSORS_LTC4260 is not set
> # CONFIG_SENSORS_LTC4261 is not set
> # CONFIG_SENSORS_MAX16065 is not set
> # CONFIG_SENSORS_MAX1619 is not set
> # CONFIG_SENSORS_MAX1668 is not set
> # CONFIG_SENSORS_MAX197 is not set
> # CONFIG_SENSORS_MAX6639 is not set
> # CONFIG_SENSORS_MAX6642 is not set
> # CONFIG_SENSORS_MAX6650 is not set
> # CONFIG_SENSORS_MAX6697 is not set
> # CONFIG_SENSORS_MAX31790 is not set
> # CONFIG_SENSORS_MCP3021 is not set
> # CONFIG_SENSORS_LM63 is not set
> # CONFIG_SENSORS_LM73 is not set
> # CONFIG_SENSORS_LM75 is not set
> # CONFIG_SENSORS_LM77 is not set
> # CONFIG_SENSORS_LM78 is not set
> # CONFIG_SENSORS_LM80 is not set
> # CONFIG_SENSORS_LM83 is not set
> # CONFIG_SENSORS_LM85 is not set
> # CONFIG_SENSORS_LM87 is not set
> # CONFIG_SENSORS_LM90 is not set
> # CONFIG_SENSORS_LM92 is not set
> # CONFIG_SENSORS_LM93 is not set
> # CONFIG_SENSORS_LM95234 is not set
> # CONFIG_SENSORS_LM95241 is not set
> # CONFIG_SENSORS_LM95245 is not set
> # CONFIG_SENSORS_PC87360 is not set
> # CONFIG_SENSORS_PC87427 is not set
> # CONFIG_SENSORS_NTC_THERMISTOR is not set
> # CONFIG_SENSORS_NCT6683 is not set
> # CONFIG_SENSORS_NCT6775 is not set
> # CONFIG_SENSORS_NCT7802 is not set
> # CONFIG_SENSORS_NCT7904 is not set
> # CONFIG_SENSORS_PCF8591 is not set
> # CONFIG_PMBUS is not set
> # CONFIG_SENSORS_SHT21 is not set
> # CONFIG_SENSORS_SHTC1 is not set
> # CONFIG_SENSORS_SIS5595 is not set
> # CONFIG_SENSORS_DME1737 is not set
> # CONFIG_SENSORS_EMC1403 is not set
> # CONFIG_SENSORS_EMC2103 is not set
> # CONFIG_SENSORS_EMC6W201 is not set
> # CONFIG_SENSORS_SMSC47M1 is not set
> # CONFIG_SENSORS_SMSC47M192 is not set
> # CONFIG_SENSORS_SMSC47B397 is not set
> # CONFIG_SENSORS_SCH56XX_COMMON is not set
> # CONFIG_SENSORS_SCH5627 is not set
> # CONFIG_SENSORS_SCH5636 is not set
> # CONFIG_SENSORS_SMM665 is not set
> # CONFIG_SENSORS_ADC128D818 is not set
> # CONFIG_SENSORS_ADS1015 is not set
> # CONFIG_SENSORS_ADS7828 is not set
> # CONFIG_SENSORS_AMC6821 is not set
> # CONFIG_SENSORS_INA209 is not set
> # CONFIG_SENSORS_INA2XX is not set
> # CONFIG_SENSORS_TC74 is not set
> # CONFIG_SENSORS_THMC50 is not set
> # CONFIG_SENSORS_TMP102 is not set
> # CONFIG_SENSORS_TMP103 is not set
> # CONFIG_SENSORS_TMP401 is not set
> # CONFIG_SENSORS_TMP421 is not set
> # CONFIG_SENSORS_VIA_CPUTEMP is not set
> # CONFIG_SENSORS_VIA686A is not set
> # CONFIG_SENSORS_VT1211 is not set
> # CONFIG_SENSORS_VT8231 is not set
> # CONFIG_SENSORS_W83781D is not set
> # CONFIG_SENSORS_W83791D is not set
> # CONFIG_SENSORS_W83792D is not set
> # CONFIG_SENSORS_W83793 is not set
> # CONFIG_SENSORS_W83795 is not set
> # CONFIG_SENSORS_W83L785TS is not set
> # CONFIG_SENSORS_W83L786NG is not set
> # CONFIG_SENSORS_W83627HF is not set
> # CONFIG_SENSORS_W83627EHF is not set
>
> #
> # ACPI drivers
> #
> # CONFIG_SENSORS_ACPI_POWER is not set
> # CONFIG_SENSORS_ATK0110 is not set
> CONFIG_THERMAL=y
> CONFIG_THERMAL_HWMON=y
> CONFIG_THERMAL_WRITABLE_TRIPS=y
> CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
> # CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
> # CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
> # CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set
> # CONFIG_THERMAL_GOV_FAIR_SHARE is not set
> CONFIG_THERMAL_GOV_STEP_WISE=y
> # CONFIG_THERMAL_GOV_BANG_BANG is not set
> CONFIG_THERMAL_GOV_USER_SPACE=y
> # CONFIG_THERMAL_GOV_POWER_ALLOCATOR is not set
> # CONFIG_THERMAL_EMULATION is not set
> # CONFIG_INTEL_POWERCLAMP is not set
> CONFIG_X86_PKG_TEMP_THERMAL=m
> # CONFIG_INTEL_SOC_DTS_THERMAL is not set
> # CONFIG_INT340X_THERMAL is not set
> # CONFIG_INTEL_PCH_THERMAL is not set
> CONFIG_WATCHDOG=y
> # CONFIG_WATCHDOG_CORE is not set
> # CONFIG_WATCHDOG_NOWAYOUT is not set
> # CONFIG_WATCHDOG_SYSFS is not set
>
> #
> # Watchdog Device Drivers
> #
> # CONFIG_SOFT_WATCHDOG is not set
> # CONFIG_XILINX_WATCHDOG is not set
> # CONFIG_ZIIRAVE_WATCHDOG is not set
> # CONFIG_CADENCE_WATCHDOG is not set
> # CONFIG_DW_WATCHDOG is not set
> # CONFIG_MAX63XX_WATCHDOG is not set
> # CONFIG_ACQUIRE_WDT is not set
> # CONFIG_ADVANTECH_WDT is not set
> # CONFIG_ALIM1535_WDT is not set
> # CONFIG_ALIM7101_WDT is not set
> # CONFIG_F71808E_WDT is not set
> # CONFIG_SP5100_TCO is not set
> # CONFIG_SBC_FITPC2_WATCHDOG is not set
> # CONFIG_EUROTECH_WDT is not set
> # CONFIG_IB700_WDT is not set
> # CONFIG_IBMASR is not set
> # CONFIG_WAFER_WDT is not set
> # CONFIG_I6300ESB_WDT is not set
> # CONFIG_IE6XX_WDT is not set
> # CONFIG_ITCO_WDT is not set
> # CONFIG_IT8712F_WDT is not set
> # CONFIG_IT87_WDT is not set
> # CONFIG_HP_WATCHDOG is not set
> # CONFIG_SC1200_WDT is not set
> # CONFIG_PC87413_WDT is not set
> # CONFIG_NV_TCO is not set
> # CONFIG_60XX_WDT is not set
> # CONFIG_CPU5_WDT is not set
> # CONFIG_SMSC_SCH311X_WDT is not set
> # CONFIG_SMSC37B787_WDT is not set
> # CONFIG_VIA_WDT is not set
> # CONFIG_W83627HF_WDT is not set
> # CONFIG_W83877F_WDT is not set
> # CONFIG_W83977F_WDT is not set
> # CONFIG_MACHZ_WDT is not set
> # CONFIG_SBC_EPX_C3_WATCHDOG is not set
> # CONFIG_BCM7038_WDT is not set
>
> #
> # PCI-based Watchdog Cards
> #
> # CONFIG_PCIPCWATCHDOG is not set
> # CONFIG_WDTPCI is not set
>
> #
> # USB-based Watchdog Cards
> #
> # CONFIG_USBPCWATCHDOG is not set
> CONFIG_SSB_POSSIBLE=y
>
> #
> # Sonics Silicon Backplane
> #
> # CONFIG_SSB is not set
> CONFIG_BCMA_POSSIBLE=y
>
> #
> # Broadcom specific AMBA
> #
> # CONFIG_BCMA is not set
>
> #
> # Multifunction device drivers
> #
> # CONFIG_MFD_CORE is not set
> # CONFIG_MFD_AS3711 is not set
> # CONFIG_PMIC_ADP5520 is not set
> # CONFIG_MFD_BCM590XX is not set
> # CONFIG_MFD_AXP20X is not set
> # CONFIG_MFD_CROS_EC is not set
> # CONFIG_PMIC_DA903X is not set
> # CONFIG_MFD_DA9052_I2C is not set
> # CONFIG_MFD_DA9055 is not set
> # CONFIG_MFD_DA9062 is not set
> # CONFIG_MFD_DA9063 is not set
> # CONFIG_MFD_DA9150 is not set
> # CONFIG_MFD_DLN2 is not set
> # CONFIG_MFD_MC13XXX_I2C is not set
> # CONFIG_HTC_PASIC3 is not set
> # CONFIG_LPC_ICH is not set
> # CONFIG_LPC_SCH is not set
> # CONFIG_MFD_INTEL_LPSS_ACPI is not set
> # CONFIG_MFD_INTEL_LPSS_PCI is not set
> # CONFIG_MFD_JANZ_CMODIO is not set
> # CONFIG_MFD_KEMPLD is not set
> # CONFIG_MFD_88PM800 is not set
> # CONFIG_MFD_88PM805 is not set
> # CONFIG_MFD_88PM860X is not set
> # CONFIG_MFD_MAX14577 is not set
> # CONFIG_MFD_MAX77693 is not set
> # CONFIG_MFD_MAX77843 is not set
> # CONFIG_MFD_MAX8907 is not set
> # CONFIG_MFD_MAX8925 is not set
> # CONFIG_MFD_MAX8997 is not set
> # CONFIG_MFD_MAX8998 is not set
> # CONFIG_MFD_MT6397 is not set
> # CONFIG_MFD_MENF21BMC is not set
> # CONFIG_MFD_VIPERBOARD is not set
> # CONFIG_MFD_RETU is not set
> # CONFIG_MFD_PCF50633 is not set
> # CONFIG_MFD_RDC321X is not set
> # CONFIG_MFD_RTSX_PCI is not set
> # CONFIG_MFD_RT5033 is not set
> # CONFIG_MFD_RTSX_USB is not set
> # CONFIG_MFD_RC5T583 is not set
> # CONFIG_MFD_RN5T618 is not set
> # CONFIG_MFD_SEC_CORE is not set
> # CONFIG_MFD_SI476X_CORE is not set
> # CONFIG_MFD_SM501 is not set
> # CONFIG_MFD_SKY81452 is not set
> # CONFIG_MFD_SMSC is not set
> # CONFIG_ABX500_CORE is not set
> # CONFIG_MFD_SYSCON is not set
> # CONFIG_MFD_TI_AM335X_TSCADC is not set
> # CONFIG_MFD_LP3943 is not set
> # CONFIG_MFD_LP8788 is not set
> # CONFIG_MFD_PALMAS is not set
> # CONFIG_TPS6105X is not set
> # CONFIG_TPS6507X is not set
> # CONFIG_MFD_TPS65090 is not set
> # CONFIG_MFD_TPS65217 is not set
> # CONFIG_MFD_TPS65218 is not set
> # CONFIG_MFD_TPS6586X is not set
> # CONFIG_MFD_TPS80031 is not set
> # CONFIG_TWL4030_CORE is not set
> # CONFIG_TWL6040_CORE is not set
> # CONFIG_MFD_WL1273_CORE is not set
> # CONFIG_MFD_LM3533 is not set
> # CONFIG_MFD_TMIO is not set
> # CONFIG_MFD_VX855 is not set
> # CONFIG_MFD_ARIZONA_I2C is not set
> # CONFIG_MFD_WM8400 is not set
> # CONFIG_MFD_WM831X_I2C is not set
> # CONFIG_MFD_WM8350_I2C is not set
> # CONFIG_MFD_WM8994 is not set
> # CONFIG_REGULATOR is not set
> # CONFIG_MEDIA_SUPPORT is not set
>
> #
> # Graphics support
> #
> CONFIG_AGP=y
> CONFIG_AGP_AMD64=y
> CONFIG_AGP_INTEL=y
> # CONFIG_AGP_SIS is not set
> # CONFIG_AGP_VIA is not set
> CONFIG_INTEL_GTT=y
> CONFIG_VGA_ARB=y
> CONFIG_VGA_ARB_MAX_GPUS=16
> # CONFIG_VGA_SWITCHEROO is not set
> CONFIG_DRM=y
> CONFIG_DRM_MIPI_DSI=y
> CONFIG_DRM_KMS_HELPER=y
> CONFIG_DRM_KMS_FB_HELPER=y
> CONFIG_DRM_FBDEV_EMULATION=y
> # CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
>
> #
> # I2C encoder or helper chips
> #
> # CONFIG_DRM_I2C_ADV7511 is not set
> # CONFIG_DRM_I2C_CH7006 is not set
> # CONFIG_DRM_I2C_SIL164 is not set
> # CONFIG_DRM_I2C_NXP_TDA998X is not set
> # CONFIG_DRM_TDFX is not set
> # CONFIG_DRM_R128 is not set
> # CONFIG_DRM_RADEON is not set
> # CONFIG_DRM_AMDGPU is not set
> # CONFIG_DRM_NOUVEAU is not set
> CONFIG_DRM_I915=y
> # CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT is not set
> # CONFIG_DRM_MGA is not set
> # CONFIG_DRM_SIS is not set
> # CONFIG_DRM_VIA is not set
> # CONFIG_DRM_SAVAGE is not set
> # CONFIG_DRM_VGEM is not set
> # CONFIG_DRM_VMWGFX is not set
> # CONFIG_DRM_GMA500 is not set
> # CONFIG_DRM_UDL is not set
> # CONFIG_DRM_AST is not set
> # CONFIG_DRM_MGAG200 is not set
> # CONFIG_DRM_CIRRUS_QEMU is not set
> # CONFIG_DRM_QXL is not set
> # CONFIG_DRM_BOCHS is not set
> CONFIG_DRM_PANEL=y
>
> #
> # Display Panels
> #
> CONFIG_DRM_BRIDGE=y
>
> #
> # Display Interface Bridges
> #
>
> #
> # Frame buffer Devices
> #
> CONFIG_FB=y
> # CONFIG_FIRMWARE_EDID is not set
> CONFIG_FB_CMDLINE=y
> CONFIG_FB_NOTIFY=y
> # CONFIG_FB_DDC is not set
> # CONFIG_FB_BOOT_VESA_SUPPORT is not set
> CONFIG_FB_CFB_FILLRECT=y
> CONFIG_FB_CFB_COPYAREA=y
> CONFIG_FB_CFB_IMAGEBLIT=y
> # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
> CONFIG_FB_SYS_FILLRECT=y
> CONFIG_FB_SYS_COPYAREA=y
> CONFIG_FB_SYS_IMAGEBLIT=y
> # CONFIG_FB_FOREIGN_ENDIAN is not set
> CONFIG_FB_SYS_FOPS=y
> # CONFIG_FB_SVGALIB is not set
> # CONFIG_FB_MACMODES is not set
> # CONFIG_FB_BACKLIGHT is not set
> CONFIG_FB_MODE_HELPERS=y
> CONFIG_FB_TILEBLITTING=y
>
> #
> # Frame buffer hardware drivers
> #
> # CONFIG_FB_CIRRUS is not set
> # CONFIG_FB_PM2 is not set
> # CONFIG_FB_CYBER2000 is not set
> # CONFIG_FB_ARC is not set
> # CONFIG_FB_ASILIANT is not set
> # CONFIG_FB_IMSTT is not set
> # CONFIG_FB_VGA16 is not set
> # CONFIG_FB_UVESA is not set
> # CONFIG_FB_VESA is not set
> CONFIG_FB_EFI=y
> # CONFIG_FB_N411 is not set
> # CONFIG_FB_HGA is not set
> # CONFIG_FB_OPENCORES is not set
> # CONFIG_FB_S1D13XXX is not set
> # CONFIG_FB_NVIDIA is not set
> # CONFIG_FB_RIVA is not set
> # CONFIG_FB_I740 is not set
> # CONFIG_FB_LE80578 is not set
> # CONFIG_FB_MATROX is not set
> # CONFIG_FB_RADEON is not set
> # CONFIG_FB_ATY128 is not set
> # CONFIG_FB_ATY is not set
> # CONFIG_FB_S3 is not set
> # CONFIG_FB_SAVAGE is not set
> # CONFIG_FB_SIS is not set
> # CONFIG_FB_NEOMAGIC is not set
> # CONFIG_FB_KYRO is not set
> # CONFIG_FB_3DFX is not set
> # CONFIG_FB_VOODOO1 is not set
> # CONFIG_FB_VT8623 is not set
> # CONFIG_FB_TRIDENT is not set
> # CONFIG_FB_ARK is not set
> # CONFIG_FB_PM3 is not set
> # CONFIG_FB_CARMINE is not set
> # CONFIG_FB_SMSCUFX is not set
> # CONFIG_FB_UDL is not set
> # CONFIG_FB_IBM_GXT4500 is not set
> # CONFIG_FB_VIRTUAL is not set
> # CONFIG_FB_METRONOME is not set
> # CONFIG_FB_MB862XX is not set
> # CONFIG_FB_BROADSHEET is not set
> # CONFIG_FB_AUO_K190X is not set
> # CONFIG_FB_SIMPLE is not set
> # CONFIG_FB_SM712 is not set
> CONFIG_BACKLIGHT_LCD_SUPPORT=y
> # CONFIG_LCD_CLASS_DEVICE is not set
> CONFIG_BACKLIGHT_CLASS_DEVICE=y
> CONFIG_BACKLIGHT_GENERIC=y
> # CONFIG_BACKLIGHT_APPLE is not set
> # CONFIG_BACKLIGHT_PM8941_WLED is not set
> # CONFIG_BACKLIGHT_SAHARA is not set
> # CONFIG_BACKLIGHT_ADP8860 is not set
> # CONFIG_BACKLIGHT_ADP8870 is not set
> # CONFIG_BACKLIGHT_LM3639 is not set
> # CONFIG_BACKLIGHT_LV5207LP is not set
> # CONFIG_BACKLIGHT_BD6107 is not set
> # CONFIG_VGASTATE is not set
> CONFIG_HDMI=y
>
> #
> # Console display driver support
> #
> CONFIG_VGA_CONSOLE=y
> CONFIG_VGACON_SOFT_SCROLLBACK=y
> CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
> CONFIG_DUMMY_CONSOLE=y
> CONFIG_DUMMY_CONSOLE_COLUMNS=80
> CONFIG_DUMMY_CONSOLE_ROWS=25
> CONFIG_FRAMEBUFFER_CONSOLE=y
> CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
> # CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
> CONFIG_LOGO=y
> # CONFIG_LOGO_LINUX_MONO is not set
> # CONFIG_LOGO_LINUX_VGA16 is not set
> CONFIG_LOGO_LINUX_CLUT224=y
> CONFIG_SOUND=y
> CONFIG_SOUND_OSS_CORE=y
> CONFIG_SOUND_OSS_CORE_PRECLAIM=y
> CONFIG_SND=y
> CONFIG_SND_TIMER=y
> CONFIG_SND_PCM=y
> CONFIG_SND_HWDEP=y
> CONFIG_SND_JACK=y
> CONFIG_SND_SEQUENCER=y
> CONFIG_SND_SEQ_DUMMY=y
> CONFIG_SND_OSSEMUL=y
> CONFIG_SND_MIXER_OSS=y
> CONFIG_SND_PCM_OSS=y
> CONFIG_SND_PCM_OSS_PLUGINS=y
> CONFIG_SND_PCM_TIMER=y
> CONFIG_SND_SEQUENCER_OSS=y
> CONFIG_SND_HRTIMER=y
> CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
> # CONFIG_SND_DYNAMIC_MINORS is not set
> CONFIG_SND_SUPPORT_OLD_API=y
> CONFIG_SND_PROC_FS=y
> CONFIG_SND_VERBOSE_PROCFS=y
> # CONFIG_SND_VERBOSE_PRINTK is not set
> # CONFIG_SND_DEBUG is not set
> CONFIG_SND_VMASTER=y
> CONFIG_SND_DMA_SGBUF=y
> # CONFIG_SND_RAWMIDI_SEQ is not set
> # CONFIG_SND_OPL3_LIB_SEQ is not set
> # CONFIG_SND_OPL4_LIB_SEQ is not set
> # CONFIG_SND_SBAWE_SEQ is not set
> # CONFIG_SND_EMU10K1_SEQ is not set
> CONFIG_SND_DRIVERS=y
> # CONFIG_SND_PCSP is not set
> # CONFIG_SND_DUMMY is not set
> # CONFIG_SND_ALOOP is not set
> # CONFIG_SND_VIRMIDI is not set
> # CONFIG_SND_MTPAV is not set
> # CONFIG_SND_SERIAL_U16550 is not set
> # CONFIG_SND_MPU401 is not set
> CONFIG_SND_PCI=y
> # CONFIG_SND_AD1889 is not set
> # CONFIG_SND_ALS300 is not set
> # CONFIG_SND_ALS4000 is not set
> # CONFIG_SND_ALI5451 is not set
> # CONFIG_SND_ASIHPI is not set
> # CONFIG_SND_ATIIXP is not set
> # CONFIG_SND_ATIIXP_MODEM is not set
> # CONFIG_SND_AU8810 is not set
> # CONFIG_SND_AU8820 is not set
> # CONFIG_SND_AU8830 is not set
> # CONFIG_SND_AW2 is not set
> # CONFIG_SND_AZT3328 is not set
> # CONFIG_SND_BT87X is not set
> # CONFIG_SND_CA0106 is not set
> # CONFIG_SND_CMIPCI is not set
> # CONFIG_SND_OXYGEN is not set
> # CONFIG_SND_CS4281 is not set
> # CONFIG_SND_CS46XX is not set
> # CONFIG_SND_CTXFI is not set
> # CONFIG_SND_DARLA20 is not set
> # CONFIG_SND_GINA20 is not set
> # CONFIG_SND_LAYLA20 is not set
> # CONFIG_SND_DARLA24 is not set
> # CONFIG_SND_GINA24 is not set
> # CONFIG_SND_LAYLA24 is not set
> # CONFIG_SND_MONA is not set
> # CONFIG_SND_MIA is not set
> # CONFIG_SND_ECHO3G is not set
> # CONFIG_SND_INDIGO is not set
> # CONFIG_SND_INDIGOIO is not set
> # CONFIG_SND_INDIGODJ is not set
> # CONFIG_SND_INDIGOIOX is not set
> # CONFIG_SND_INDIGODJX is not set
> # CONFIG_SND_EMU10K1 is not set
> # CONFIG_SND_EMU10K1X is not set
> # CONFIG_SND_ENS1370 is not set
> # CONFIG_SND_ENS1371 is not set
> # CONFIG_SND_ES1938 is not set
> # CONFIG_SND_ES1968 is not set
> # CONFIG_SND_FM801 is not set
> # CONFIG_SND_HDSP is not set
> # CONFIG_SND_HDSPM is not set
> # CONFIG_SND_ICE1712 is not set
> # CONFIG_SND_ICE1724 is not set
> # CONFIG_SND_INTEL8X0 is not set
> # CONFIG_SND_INTEL8X0M is not set
> # CONFIG_SND_KORG1212 is not set
> # CONFIG_SND_LOLA is not set
> # CONFIG_SND_LX6464ES is not set
> # CONFIG_SND_MAESTRO3 is not set
> # CONFIG_SND_MIXART is not set
> # CONFIG_SND_NM256 is not set
> # CONFIG_SND_PCXHR is not set
> # CONFIG_SND_RIPTIDE is not set
> # CONFIG_SND_RME32 is not set
> # CONFIG_SND_RME96 is not set
> # CONFIG_SND_RME9652 is not set
> # CONFIG_SND_SE6X is not set
> # CONFIG_SND_SONICVIBES is not set
> # CONFIG_SND_TRIDENT is not set
> # CONFIG_SND_VIA82XX is not set
> # CONFIG_SND_VIA82XX_MODEM is not set
> # CONFIG_SND_VIRTUOSO is not set
> # CONFIG_SND_VX222 is not set
> # CONFIG_SND_YMFPCI is not set
>
> #
> # HD-Audio
> #
> CONFIG_SND_HDA=y
> CONFIG_SND_HDA_INTEL=y
> CONFIG_SND_HDA_HWDEP=y
> # CONFIG_SND_HDA_RECONFIG is not set
> # CONFIG_SND_HDA_INPUT_BEEP is not set
> # CONFIG_SND_HDA_PATCH_LOADER is not set
> # CONFIG_SND_HDA_CODEC_REALTEK is not set
> # CONFIG_SND_HDA_CODEC_ANALOG is not set
> # CONFIG_SND_HDA_CODEC_SIGMATEL is not set
> # CONFIG_SND_HDA_CODEC_VIA is not set
> # CONFIG_SND_HDA_CODEC_HDMI is not set
> # CONFIG_SND_HDA_CODEC_CIRRUS is not set
> # CONFIG_SND_HDA_CODEC_CONEXANT is not set
> # CONFIG_SND_HDA_CODEC_CA0110 is not set
> # CONFIG_SND_HDA_CODEC_CA0132 is not set
> # CONFIG_SND_HDA_CODEC_CMEDIA is not set
> # CONFIG_SND_HDA_CODEC_SI3054 is not set
> # CONFIG_SND_HDA_GENERIC is not set
> CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0
> CONFIG_SND_HDA_CORE=y
> CONFIG_SND_HDA_I915=y
> CONFIG_SND_HDA_PREALLOC_SIZE=64
> CONFIG_SND_USB=y
> # CONFIG_SND_USB_AUDIO is not set
> # CONFIG_SND_USB_UA101 is not set
> # CONFIG_SND_USB_USX2Y is not set
> # CONFIG_SND_USB_CAIAQ is not set
> # CONFIG_SND_USB_US122L is not set
> # CONFIG_SND_USB_6FIRE is not set
> # CONFIG_SND_USB_HIFACE is not set
> # CONFIG_SND_BCD2000 is not set
> # CONFIG_SND_USB_POD is not set
> # CONFIG_SND_USB_PODHD is not set
> # CONFIG_SND_USB_TONEPORT is not set
> # CONFIG_SND_USB_VARIAX is not set
> CONFIG_SND_PCMCIA=y
> # CONFIG_SND_VXPOCKET is not set
> # CONFIG_SND_PDAUDIOCF is not set
> # CONFIG_SND_SOC is not set
> # CONFIG_SOUND_PRIME is not set
>
> #
> # HID support
> #
> CONFIG_HID=y
> # CONFIG_HID_BATTERY_STRENGTH is not set
> CONFIG_HIDRAW=y
> # CONFIG_UHID is not set
> CONFIG_HID_GENERIC=y
>
> #
> # Special HID drivers
> #
> CONFIG_HID_A4TECH=y
> # CONFIG_HID_ACRUX is not set
> CONFIG_HID_APPLE=y
> # CONFIG_HID_APPLEIR is not set
> # CONFIG_HID_AUREAL is not set
> CONFIG_HID_BELKIN=y
> # CONFIG_HID_BETOP_FF is not set
> CONFIG_HID_CHERRY=y
> CONFIG_HID_CHICONY=y
> # CONFIG_HID_CORSAIR is not set
> # CONFIG_HID_PRODIKEYS is not set
> CONFIG_HID_CYPRESS=y
> # CONFIG_HID_DRAGONRISE is not set
> # CONFIG_HID_EMS_FF is not set
> # CONFIG_HID_ELECOM is not set
> # CONFIG_HID_ELO is not set
> CONFIG_HID_EZKEY=y
> # CONFIG_HID_GEMBIRD is not set
> # CONFIG_HID_GFRM is not set
> # CONFIG_HID_HOLTEK is not set
> # CONFIG_HID_GT683R is not set
> # CONFIG_HID_KEYTOUCH is not set
> # CONFIG_HID_KYE is not set
> # CONFIG_HID_UCLOGIC is not set
> # CONFIG_HID_WALTOP is not set
> CONFIG_HID_GYRATION=y
> # CONFIG_HID_ICADE is not set
> # CONFIG_HID_TWINHAN is not set
> CONFIG_HID_KENSINGTON=y
> # CONFIG_HID_LCPOWER is not set
> # CONFIG_HID_LENOVO is not set
> CONFIG_HID_LOGITECH=y
> # CONFIG_HID_LOGITECH_DJ is not set
> # CONFIG_HID_LOGITECH_HIDPP is not set
> CONFIG_LOGITECH_FF=y
> # CONFIG_LOGIRUMBLEPAD2_FF is not set
> # CONFIG_LOGIG940_FF is not set
> CONFIG_LOGIWHEELS_FF=y
> # CONFIG_HID_MAGICMOUSE is not set
> CONFIG_HID_MICROSOFT=y
> CONFIG_HID_MONTEREY=y
> # CONFIG_HID_MULTITOUCH is not set
> CONFIG_HID_NTRIG=y
> # CONFIG_HID_ORTEK is not set
> CONFIG_HID_PANTHERLORD=y
> CONFIG_PANTHERLORD_FF=y
> # CONFIG_HID_PENMOUNT is not set
> CONFIG_HID_PETALYNX=y
> # CONFIG_HID_PICOLCD is not set
> # CONFIG_HID_PLANTRONICS is not set
> # CONFIG_HID_PRIMAX is not set
> # CONFIG_HID_ROCCAT is not set
> # CONFIG_HID_SAITEK is not set
> CONFIG_HID_SAMSUNG=y
> CONFIG_HID_SONY=y
> # CONFIG_SONY_FF is not set
> # CONFIG_HID_SPEEDLINK is not set
> # CONFIG_HID_STEELSERIES is not set
> CONFIG_HID_SUNPLUS=y
> # CONFIG_HID_RMI is not set
> # CONFIG_HID_GREENASIA is not set
> # CONFIG_HID_SMARTJOYPLUS is not set
> # CONFIG_HID_TIVO is not set
> CONFIG_HID_TOPSEED=y
> # CONFIG_HID_THINGM is not set
> # CONFIG_HID_THRUSTMASTER is not set
> # CONFIG_HID_WACOM is not set
> # CONFIG_HID_WIIMOTE is not set
> # CONFIG_HID_XINMO is not set
> # CONFIG_HID_ZEROPLUS is not set
> # CONFIG_HID_ZYDACRON is not set
> # CONFIG_HID_SENSOR_HUB is not set
>
> #
> # USB HID support
> #
> CONFIG_USB_HID=y
> CONFIG_HID_PID=y
> CONFIG_USB_HIDDEV=y
>
> #
> # I2C HID support
> #
> # CONFIG_I2C_HID is not set
> CONFIG_USB_OHCI_LITTLE_ENDIAN=y
> CONFIG_USB_SUPPORT=y
> CONFIG_USB_COMMON=y
> CONFIG_USB_ARCH_HAS_HCD=y
> CONFIG_USB=y
> CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
>
> #
> # Miscellaneous USB options
> #
> CONFIG_USB_DEFAULT_PERSIST=y
> # CONFIG_USB_DYNAMIC_MINORS is not set
> # CONFIG_USB_OTG is not set
> # CONFIG_USB_OTG_WHITELIST is not set
> # CONFIG_USB_ULPI_BUS is not set
> CONFIG_USB_MON=y
> # CONFIG_USB_WUSB_CBAF is not set
>
> #
> # USB Host Controller Drivers
> #
> # CONFIG_USB_C67X00_HCD is not set
> # CONFIG_USB_XHCI_HCD is not set
> CONFIG_USB_EHCI_HCD=y
> # CONFIG_USB_EHCI_ROOT_HUB_TT is not set
> CONFIG_USB_EHCI_TT_NEWSCHED=y
> CONFIG_USB_EHCI_PCI=y
> # CONFIG_USB_EHCI_HCD_PLATFORM is not set
> # CONFIG_USB_OXU210HP_HCD is not set
> # CONFIG_USB_ISP116X_HCD is not set
> # CONFIG_USB_ISP1362_HCD is not set
> # CONFIG_USB_FOTG210_HCD is not set
> CONFIG_USB_OHCI_HCD=y
> CONFIG_USB_OHCI_HCD_PCI=y
> # CONFIG_USB_OHCI_HCD_PLATFORM is not set
> CONFIG_USB_UHCI_HCD=y
> # CONFIG_USB_SL811_HCD is not set
> # CONFIG_USB_R8A66597_HCD is not set
> # CONFIG_USB_HCD_TEST_MODE is not set
>
> #
> # USB Device Class drivers
> #
> # CONFIG_USB_ACM is not set
> CONFIG_USB_PRINTER=y
> # CONFIG_USB_WDM is not set
> # CONFIG_USB_TMC is not set
>
> #
> # NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
> #
>
> #
> # also be needed; see USB_STORAGE Help for more info
> #
> CONFIG_USB_STORAGE=y
> # CONFIG_USB_STORAGE_DEBUG is not set
> # CONFIG_USB_STORAGE_REALTEK is not set
> # CONFIG_USB_STORAGE_DATAFAB is not set
> # CONFIG_USB_STORAGE_FREECOM is not set
> # CONFIG_USB_STORAGE_ISD200 is not set
> # CONFIG_USB_STORAGE_USBAT is not set
> # CONFIG_USB_STORAGE_SDDR09 is not set
> # CONFIG_USB_STORAGE_SDDR55 is not set
> # CONFIG_USB_STORAGE_JUMPSHOT is not set
> # CONFIG_USB_STORAGE_ALAUDA is not set
> # CONFIG_USB_STORAGE_ONETOUCH is not set
> # CONFIG_USB_STORAGE_KARMA is not set
> # CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
> # CONFIG_USB_STORAGE_ENE_UB6250 is not set
> # CONFIG_USB_UAS is not set
>
> #
> # USB Imaging devices
> #
> # CONFIG_USB_MDC800 is not set
> # CONFIG_USB_MICROTEK is not set
> # CONFIG_USBIP_CORE is not set
> # CONFIG_USB_MUSB_HDRC is not set
> # CONFIG_USB_DWC3 is not set
> # CONFIG_USB_DWC2 is not set
> # CONFIG_USB_CHIPIDEA is not set
> # CONFIG_USB_ISP1760 is not set
>
> #
> # USB port drivers
> #
> # CONFIG_USB_SERIAL is not set
>
> #
> # USB Miscellaneous drivers
> #
> # CONFIG_USB_EMI62 is not set
> # CONFIG_USB_EMI26 is not set
> # CONFIG_USB_ADUTUX is not set
> # CONFIG_USB_SEVSEG is not set
> # CONFIG_USB_RIO500 is not set
> # CONFIG_USB_LEGOTOWER is not set
> # CONFIG_USB_LCD is not set
> # CONFIG_USB_LED is not set
> # CONFIG_USB_CYPRESS_CY7C63 is not set
> # CONFIG_USB_CYTHERM is not set
> # CONFIG_USB_IDMOUSE is not set
> # CONFIG_USB_FTDI_ELAN is not set
> # CONFIG_USB_APPLEDISPLAY is not set
> # CONFIG_USB_SISUSBVGA is not set
> # CONFIG_USB_LD is not set
> # CONFIG_USB_TRANCEVIBRATOR is not set
> # CONFIG_USB_IOWARRIOR is not set
> # CONFIG_USB_TEST is not set
> # CONFIG_USB_EHSET_TEST_FIXTURE is not set
> # CONFIG_USB_ISIGHTFW is not set
> # CONFIG_USB_YUREX is not set
> # CONFIG_USB_EZUSB_FX2 is not set
> # CONFIG_USB_HSIC_USB3503 is not set
> # CONFIG_USB_LINK_LAYER_TEST is not set
> # CONFIG_USB_CHAOSKEY is not set
>
> #
> # USB Physical Layer drivers
> #
> # CONFIG_USB_PHY is not set
> # CONFIG_NOP_USB_XCEIV is not set
> # CONFIG_USB_ISP1301 is not set
> # CONFIG_USB_GADGET is not set
> # CONFIG_USB_LED_TRIG is not set
> # CONFIG_UWB is not set
> # CONFIG_MMC is not set
> # CONFIG_MEMSTICK is not set
> CONFIG_NEW_LEDS=y
> CONFIG_LEDS_CLASS=y
> # CONFIG_LEDS_CLASS_FLASH is not set
>
> #
> # LED drivers
> #
> # CONFIG_LEDS_LM3530 is not set
> # CONFIG_LEDS_LM3642 is not set
> # CONFIG_LEDS_PCA9532 is not set
> # CONFIG_LEDS_LP3944 is not set
> # CONFIG_LEDS_LP5521 is not set
> # CONFIG_LEDS_LP5523 is not set
> # CONFIG_LEDS_LP5562 is not set
> # CONFIG_LEDS_LP8501 is not set
> # CONFIG_LEDS_LP8860 is not set
> # CONFIG_LEDS_CLEVO_MAIL is not set
> # CONFIG_LEDS_PCA955X is not set
> # CONFIG_LEDS_PCA963X is not set
> # CONFIG_LEDS_BD2802 is not set
> # CONFIG_LEDS_INTEL_SS4200 is not set
> # CONFIG_LEDS_TCA6507 is not set
> # CONFIG_LEDS_TLC591XX is not set
> # CONFIG_LEDS_LM355x is not set
>
> #
> # LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
> #
> # CONFIG_LEDS_BLINKM is not set
>
> #
> # LED Triggers
> #
> CONFIG_LEDS_TRIGGERS=y
> # CONFIG_LEDS_TRIGGER_TIMER is not set
> # CONFIG_LEDS_TRIGGER_ONESHOT is not set
> # CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
> # CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
> # CONFIG_LEDS_TRIGGER_CPU is not set
> # CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
>
> #
> # iptables trigger is under Netfilter config (LED target)
> #
> # CONFIG_LEDS_TRIGGER_TRANSIENT is not set
> # CONFIG_LEDS_TRIGGER_CAMERA is not set
> # CONFIG_ACCESSIBILITY is not set
> # CONFIG_INFINIBAND is not set
> CONFIG_EDAC_ATOMIC_SCRUB=y
> CONFIG_EDAC_SUPPORT=y
> CONFIG_EDAC=y
> CONFIG_EDAC_LEGACY_SYSFS=y
> # CONFIG_EDAC_DEBUG is not set
> CONFIG_EDAC_DECODE_MCE=y
> # CONFIG_EDAC_MM_EDAC is not set
> CONFIG_RTC_LIB=y
> CONFIG_RTC_CLASS=y
> # CONFIG_RTC_HCTOSYS is not set
> CONFIG_RTC_SYSTOHC=y
> CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
> # CONFIG_RTC_DEBUG is not set
>
> #
> # RTC interfaces
> #
> CONFIG_RTC_INTF_SYSFS=y
> CONFIG_RTC_INTF_PROC=y
> CONFIG_RTC_INTF_DEV=y
> # CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
> # CONFIG_RTC_DRV_TEST is not set
>
> #
> # I2C RTC drivers
> #
> # CONFIG_RTC_DRV_ABB5ZES3 is not set
> # CONFIG_RTC_DRV_ABX80X is not set
> # CONFIG_RTC_DRV_DS1307 is not set
> # CONFIG_RTC_DRV_DS1374 is not set
> # CONFIG_RTC_DRV_DS1672 is not set
> # CONFIG_RTC_DRV_DS3232 is not set
> # CONFIG_RTC_DRV_MAX6900 is not set
> # CONFIG_RTC_DRV_RS5C372 is not set
> # CONFIG_RTC_DRV_ISL1208 is not set
> # CONFIG_RTC_DRV_ISL12022 is not set
> # CONFIG_RTC_DRV_ISL12057 is not set
> # CONFIG_RTC_DRV_X1205 is not set
> # CONFIG_RTC_DRV_PCF2127 is not set
> # CONFIG_RTC_DRV_PCF8523 is not set
> # CONFIG_RTC_DRV_PCF8563 is not set
> # CONFIG_RTC_DRV_PCF85063 is not set
> # CONFIG_RTC_DRV_PCF8583 is not set
> # CONFIG_RTC_DRV_M41T80 is not set
> # CONFIG_RTC_DRV_BQ32K is not set
> # CONFIG_RTC_DRV_S35390A is not set
> # CONFIG_RTC_DRV_FM3130 is not set
> # CONFIG_RTC_DRV_RX8010 is not set
> # CONFIG_RTC_DRV_RX8581 is not set
> # CONFIG_RTC_DRV_RX8025 is not set
> # CONFIG_RTC_DRV_EM3027 is not set
> # CONFIG_RTC_DRV_RV3029C2 is not set
> # CONFIG_RTC_DRV_RV8803 is not set
>
> #
> # SPI RTC drivers
> #
>
> #
> # Platform RTC drivers
> #
> CONFIG_RTC_DRV_CMOS=y
> # CONFIG_RTC_DRV_DS1286 is not set
> # CONFIG_RTC_DRV_DS1511 is not set
> # CONFIG_RTC_DRV_DS1553 is not set
> # CONFIG_RTC_DRV_DS1685_FAMILY is not set
> # CONFIG_RTC_DRV_DS1742 is not set
> # CONFIG_RTC_DRV_DS2404 is not set
> # CONFIG_RTC_DRV_STK17TA8 is not set
> # CONFIG_RTC_DRV_M48T86 is not set
> # CONFIG_RTC_DRV_M48T35 is not set
> # CONFIG_RTC_DRV_M48T59 is not set
> # CONFIG_RTC_DRV_MSM6242 is not set
> # CONFIG_RTC_DRV_BQ4802 is not set
> # CONFIG_RTC_DRV_RP5C01 is not set
> # CONFIG_RTC_DRV_V3020 is not set
>
> #
> # on-CPU RTC drivers
> #
>
> #
> # HID Sensor RTC drivers
> #
> # CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
> CONFIG_DMADEVICES=y
> # CONFIG_DMADEVICES_DEBUG is not set
>
> #
> # DMA Devices
> #
> CONFIG_DMA_ACPI=y
> # CONFIG_INTEL_IDMA64 is not set
> # CONFIG_INTEL_IOATDMA is not set
> # CONFIG_DW_DMAC is not set
> # CONFIG_DW_DMAC_PCI is not set
> # CONFIG_AUXDISPLAY is not set
> # CONFIG_UIO is not set
> # CONFIG_VFIO is not set
> # CONFIG_VIRT_DRIVERS is not set
>
> #
> # Virtio drivers
> #
> # CONFIG_VIRTIO_PCI is not set
> # CONFIG_VIRTIO_MMIO is not set
>
> #
> # Microsoft Hyper-V guest support
> #
> # CONFIG_STAGING is not set
> CONFIG_X86_PLATFORM_DEVICES=y
> # CONFIG_ACERHDF is not set
> # CONFIG_ASUS_LAPTOP is not set
> # CONFIG_DELL_SMO8800 is not set
> # CONFIG_DELL_RBTN is not set
> # CONFIG_FUJITSU_LAPTOP is not set
> # CONFIG_FUJITSU_TABLET is not set
> # CONFIG_AMILO_RFKILL is not set
> # CONFIG_HP_ACCEL is not set
> # CONFIG_HP_WIRELESS is not set
> # CONFIG_MSI_LAPTOP is not set
> # CONFIG_PANASONIC_LAPTOP is not set
> # CONFIG_COMPAL_LAPTOP is not set
> # CONFIG_SONY_LAPTOP is not set
> # CONFIG_IDEAPAD_LAPTOP is not set
> # CONFIG_THINKPAD_ACPI is not set
> # CONFIG_SENSORS_HDAPS is not set
> # CONFIG_INTEL_MENLOW is not set
> CONFIG_EEEPC_LAPTOP=y
> # CONFIG_ASUS_WIRELESS is not set
> # CONFIG_ACPI_WMI is not set
> # CONFIG_TOPSTAR_LAPTOP is not set
> # CONFIG_TOSHIBA_BT_RFKILL is not set
> # CONFIG_TOSHIBA_HAPS is not set
> # CONFIG_ACPI_CMPC is not set
> # CONFIG_INTEL_HID_EVENT is not set
> # CONFIG_INTEL_IPS is not set
> # CONFIG_IBM_RTL is not set
> # CONFIG_SAMSUNG_LAPTOP is not set
> # CONFIG_INTEL_OAKTRAIL is not set
> # CONFIG_SAMSUNG_Q10 is not set
> # CONFIG_APPLE_GMUX is not set
> # CONFIG_INTEL_RST is not set
> # CONFIG_INTEL_SMARTCONNECT is not set
> # CONFIG_PVPANIC is not set
> # CONFIG_INTEL_PMC_IPC is not set
> # CONFIG_SURFACE_PRO3_BUTTON is not set
> # CONFIG_INTEL_PUNIT_IPC is not set
> # CONFIG_CHROME_PLATFORMS is not set
>
> #
> # Hardware Spinlock drivers
> #
>
> #
> # Clock Source drivers
> #
> CONFIG_CLKEVT_I8253=y
> CONFIG_I8253_LOCK=y
> CONFIG_CLKBLD_I8253=y
> # CONFIG_ATMEL_PIT is not set
> # CONFIG_SH_TIMER_CMT is not set
> # CONFIG_SH_TIMER_MTU2 is not set
> # CONFIG_SH_TIMER_TMU is not set
> # CONFIG_EM_TIMER_STI is not set
> # CONFIG_MAILBOX is not set
> CONFIG_IOMMU_API=y
> CONFIG_IOMMU_SUPPORT=y
>
> #
> # Generic IOMMU Pagetable Support
> #
> CONFIG_IOMMU_IOVA=y
> CONFIG_AMD_IOMMU=y
> CONFIG_AMD_IOMMU_STATS=y
> # CONFIG_AMD_IOMMU_V2 is not set
> CONFIG_DMAR_TABLE=y
> CONFIG_INTEL_IOMMU=y
> # CONFIG_INTEL_IOMMU_SVM is not set
> # CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
> CONFIG_INTEL_IOMMU_FLOPPY_WA=y
> # CONFIG_IRQ_REMAP is not set
>
> #
> # Remoteproc drivers
> #
> # CONFIG_STE_MODEM_RPROC is not set
>
> #
> # Rpmsg drivers
> #
>
> #
> # SOC (System On Chip) specific Drivers
> #
> # CONFIG_SUNXI_SRAM is not set
> # CONFIG_SOC_TI is not set
> # CONFIG_PM_DEVFREQ is not set
> # CONFIG_EXTCON is not set
> # CONFIG_MEMORY is not set
> # CONFIG_IIO is not set
> # CONFIG_NTB is not set
> # CONFIG_VME_BUS is not set
> # CONFIG_PWM is not set
> CONFIG_ARM_GIC_MAX_NR=1
> # CONFIG_TS4800_IRQ is not set
> # CONFIG_IPACK_BUS is not set
> # CONFIG_RESET_CONTROLLER is not set
> # CONFIG_FMC is not set
>
> #
> # PHY Subsystem
> #
> # CONFIG_GENERIC_PHY is not set
> # CONFIG_PHY_PXA_28NM_HSIC is not set
> # CONFIG_PHY_PXA_28NM_USB2 is not set
> # CONFIG_BCM_KONA_USB2_PHY is not set
> # CONFIG_PHY_HI6220_USB is not set
> # CONFIG_POWERCAP is not set
> # CONFIG_MCB is not set
>
> #
> # Performance monitor support
> #
> CONFIG_RAS=y
> # CONFIG_AMD_MCE_INJ is not set
> # CONFIG_THUNDERBOLT is not set
>
> #
> # Android
> #
> # CONFIG_ANDROID is not set
> # CONFIG_LIBNVDIMM is not set
> # CONFIG_NVMEM is not set
> # CONFIG_STM is not set
> # CONFIG_STM_DUMMY is not set
> # CONFIG_STM_SOURCE_CONSOLE is not set
> # CONFIG_INTEL_TH is not set
>
> #
> # FPGA Configuration Support
> #
> # CONFIG_FPGA is not set
>
> #
> # Firmware Drivers
> #
> # CONFIG_EDD is not set
> CONFIG_FIRMWARE_MEMMAP=y
> # CONFIG_DELL_RBU is not set
> # CONFIG_DCDBAS is not set
> CONFIG_DMIID=y
> # CONFIG_DMI_SYSFS is not set
> CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
> # CONFIG_ISCSI_IBFT_FIND is not set
> # CONFIG_GOOGLE_FIRMWARE is not set
>
> #
> # EFI (Extensible Firmware Interface) Support
> #
> CONFIG_EFI_VARS=y
> CONFIG_EFI_ESRT=y
> CONFIG_EFI_RUNTIME_MAP=y
> # CONFIG_EFI_FAKE_MEMMAP is not set
> CONFIG_EFI_RUNTIME_WRAPPERS=y
>
> #
> # File systems
> #
> CONFIG_DCACHE_WORD_ACCESS=y
> # CONFIG_EXT2_FS is not set
> # CONFIG_EXT3_FS is not set
> CONFIG_EXT4_FS=y
> CONFIG_EXT4_USE_FOR_EXT2=y
> CONFIG_EXT4_FS_POSIX_ACL=y
> CONFIG_EXT4_FS_SECURITY=y
> # CONFIG_EXT4_ENCRYPTION is not set
> # CONFIG_EXT4_DEBUG is not set
> CONFIG_JBD2=y
> # CONFIG_JBD2_DEBUG is not set
> CONFIG_FS_MBCACHE=y
> # CONFIG_REISERFS_FS is not set
> # CONFIG_JFS_FS is not set
> # CONFIG_XFS_FS is not set
> # CONFIG_GFS2_FS is not set
> # CONFIG_BTRFS_FS is not set
> # CONFIG_NILFS2_FS is not set
> # CONFIG_F2FS_FS is not set
> # CONFIG_FS_DAX is not set
> CONFIG_FS_POSIX_ACL=y
> CONFIG_EXPORTFS=y
> CONFIG_FILE_LOCKING=y
> CONFIG_MANDATORY_FILE_LOCKING=y
> CONFIG_FSNOTIFY=y
> CONFIG_DNOTIFY=y
> CONFIG_INOTIFY_USER=y
> # CONFIG_FANOTIFY is not set
> CONFIG_QUOTA=y
> CONFIG_QUOTA_NETLINK_INTERFACE=y
> # CONFIG_PRINT_QUOTA_WARNING is not set
> # CONFIG_QUOTA_DEBUG is not set
> CONFIG_QUOTA_TREE=y
> # CONFIG_QFMT_V1 is not set
> CONFIG_QFMT_V2=y
> CONFIG_QUOTACTL=y
> CONFIG_QUOTACTL_COMPAT=y
> CONFIG_AUTOFS4_FS=y
> # CONFIG_FUSE_FS is not set
> # CONFIG_OVERLAY_FS is not set
>
> #
> # Caches
> #
> # CONFIG_FSCACHE is not set
>
> #
> # CD-ROM/DVD Filesystems
> #
> CONFIG_ISO9660_FS=y
> CONFIG_JOLIET=y
> CONFIG_ZISOFS=y
> # CONFIG_UDF_FS is not set
>
> #
> # DOS/FAT/NT Filesystems
> #
> CONFIG_FAT_FS=y
> CONFIG_MSDOS_FS=y
> CONFIG_VFAT_FS=y
> CONFIG_FAT_DEFAULT_CODEPAGE=437
> CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
> # CONFIG_NTFS_FS is not set
>
> #
> # Pseudo filesystems
> #
> CONFIG_PROC_FS=y
> CONFIG_PROC_KCORE=y
> CONFIG_PROC_VMCORE=y
> CONFIG_PROC_SYSCTL=y
> CONFIG_PROC_PAGE_MONITOR=y
> # CONFIG_PROC_CHILDREN is not set
> CONFIG_KERNFS=y
> CONFIG_SYSFS=y
> CONFIG_TMPFS=y
> CONFIG_TMPFS_POSIX_ACL=y
> CONFIG_TMPFS_XATTR=y
> CONFIG_HUGETLBFS=y
> CONFIG_HUGETLB_PAGE=y
> # CONFIG_CONFIGFS_FS is not set
> CONFIG_EFIVAR_FS=m
> CONFIG_MISC_FILESYSTEMS=y
> # CONFIG_ADFS_FS is not set
> # CONFIG_AFFS_FS is not set
> # CONFIG_ECRYPT_FS is not set
> # CONFIG_HFS_FS is not set
> # CONFIG_HFSPLUS_FS is not set
> # CONFIG_BEFS_FS is not set
> # CONFIG_BFS_FS is not set
> # CONFIG_EFS_FS is not set
> # CONFIG_LOGFS is not set
> # CONFIG_CRAMFS is not set
> # CONFIG_SQUASHFS is not set
> # CONFIG_VXFS_FS is not set
> # CONFIG_MINIX_FS is not set
> # CONFIG_OMFS_FS is not set
> # CONFIG_HPFS_FS is not set
> # CONFIG_QNX4FS_FS is not set
> # CONFIG_QNX6FS_FS is not set
> # CONFIG_ROMFS_FS is not set
> # CONFIG_PSTORE is not set
> # CONFIG_SYSV_FS is not set
> # CONFIG_UFS_FS is not set
> CONFIG_NETWORK_FILESYSTEMS=y
> CONFIG_NFS_FS=y
> CONFIG_NFS_V2=y
> CONFIG_NFS_V3=y
> CONFIG_NFS_V3_ACL=y
> CONFIG_NFS_V4=y
> # CONFIG_NFS_SWAP is not set
> # CONFIG_NFS_V4_1 is not set
> CONFIG_ROOT_NFS=y
> # CONFIG_NFS_USE_LEGACY_DNS is not set
> CONFIG_NFS_USE_KERNEL_DNS=y
> # CONFIG_NFSD is not set
> CONFIG_GRACE_PERIOD=y
> CONFIG_LOCKD=y
> CONFIG_LOCKD_V4=y
> CONFIG_NFS_ACL_SUPPORT=y
> CONFIG_NFS_COMMON=y
> CONFIG_SUNRPC=y
> CONFIG_SUNRPC_GSS=y
> # CONFIG_SUNRPC_DEBUG is not set
> # CONFIG_CEPH_FS is not set
> # CONFIG_CIFS is not set
> # CONFIG_NCP_FS is not set
> # CONFIG_CODA_FS is not set
> # CONFIG_AFS_FS is not set
> CONFIG_NLS=y
> CONFIG_NLS_DEFAULT="utf8"
> CONFIG_NLS_CODEPAGE_437=y
> # CONFIG_NLS_CODEPAGE_737 is not set
> # CONFIG_NLS_CODEPAGE_775 is not set
> # CONFIG_NLS_CODEPAGE_850 is not set
> # CONFIG_NLS_CODEPAGE_852 is not set
> # CONFIG_NLS_CODEPAGE_855 is not set
> # CONFIG_NLS_CODEPAGE_857 is not set
> # CONFIG_NLS_CODEPAGE_860 is not set
> # CONFIG_NLS_CODEPAGE_861 is not set
> # CONFIG_NLS_CODEPAGE_862 is not set
> # CONFIG_NLS_CODEPAGE_863 is not set
> # CONFIG_NLS_CODEPAGE_864 is not set
> # CONFIG_NLS_CODEPAGE_865 is not set
> # CONFIG_NLS_CODEPAGE_866 is not set
> # CONFIG_NLS_CODEPAGE_869 is not set
> # CONFIG_NLS_CODEPAGE_936 is not set
> # CONFIG_NLS_CODEPAGE_950 is not set
> # CONFIG_NLS_CODEPAGE_932 is not set
> # CONFIG_NLS_CODEPAGE_949 is not set
> # CONFIG_NLS_CODEPAGE_874 is not set
> # CONFIG_NLS_ISO8859_8 is not set
> # CONFIG_NLS_CODEPAGE_1250 is not set
> # CONFIG_NLS_CODEPAGE_1251 is not set
> CONFIG_NLS_ASCII=y
> CONFIG_NLS_ISO8859_1=y
> # CONFIG_NLS_ISO8859_2 is not set
> # CONFIG_NLS_ISO8859_3 is not set
> # CONFIG_NLS_ISO8859_4 is not set
> # CONFIG_NLS_ISO8859_5 is not set
> # CONFIG_NLS_ISO8859_6 is not set
> # CONFIG_NLS_ISO8859_7 is not set
> # CONFIG_NLS_ISO8859_9 is not set
> # CONFIG_NLS_ISO8859_13 is not set
> # CONFIG_NLS_ISO8859_14 is not set
> # CONFIG_NLS_ISO8859_15 is not set
> # CONFIG_NLS_KOI8_R is not set
> # CONFIG_NLS_KOI8_U is not set
> # CONFIG_NLS_MAC_ROMAN is not set
> # CONFIG_NLS_MAC_CELTIC is not set
> # CONFIG_NLS_MAC_CENTEURO is not set
> # CONFIG_NLS_MAC_CROATIAN is not set
> # CONFIG_NLS_MAC_CYRILLIC is not set
> # CONFIG_NLS_MAC_GAELIC is not set
> # CONFIG_NLS_MAC_GREEK is not set
> # CONFIG_NLS_MAC_ICELAND is not set
> # CONFIG_NLS_MAC_INUIT is not set
> # CONFIG_NLS_MAC_ROMANIAN is not set
> # CONFIG_NLS_MAC_TURKISH is not set
> CONFIG_NLS_UTF8=y
>
> #
> # Kernel hacking
> #
> CONFIG_TRACE_IRQFLAGS_SUPPORT=y
>
> #
> # printk and dmesg options
> #
> CONFIG_PRINTK_TIME=y
> CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
> # CONFIG_BOOT_PRINTK_DELAY is not set
> # CONFIG_DYNAMIC_DEBUG is not set
>
> #
> # Compile-time checks and compiler options
> #
> # CONFIG_DEBUG_INFO is not set
> # CONFIG_ENABLE_WARN_DEPRECATED is not set
> CONFIG_ENABLE_MUST_CHECK=y
> CONFIG_FRAME_WARN=2048
> # CONFIG_STRIP_ASM_SYMS is not set
> # CONFIG_READABLE_ASM is not set
> # CONFIG_UNUSED_SYMBOLS is not set
> # CONFIG_PAGE_OWNER is not set
> CONFIG_DEBUG_FS=y
> # CONFIG_HEADERS_CHECK is not set
> # CONFIG_DEBUG_SECTION_MISMATCH is not set
> CONFIG_SECTION_MISMATCH_WARN_ONLY=y
> CONFIG_ARCH_WANT_FRAME_POINTERS=y
> CONFIG_FRAME_POINTER=y
> # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
> CONFIG_MAGIC_SYSRQ=y
> CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
> CONFIG_DEBUG_KERNEL=y
>
> #
> # Memory Debugging
> #
> # CONFIG_PAGE_EXTENSION is not set
> # CONFIG_DEBUG_PAGEALLOC is not set
> # CONFIG_DEBUG_OBJECTS is not set
> # CONFIG_SLUB_DEBUG_ON is not set
> # CONFIG_SLUB_STATS is not set
> CONFIG_HAVE_DEBUG_KMEMLEAK=y
> # CONFIG_DEBUG_KMEMLEAK is not set
> CONFIG_DEBUG_STACK_USAGE=y
> # CONFIG_DEBUG_VM is not set
> # CONFIG_DEBUG_VIRTUAL is not set
> CONFIG_DEBUG_MEMORY_INIT=y
> # CONFIG_DEBUG_PER_CPU_MAPS is not set
> CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
> CONFIG_DEBUG_STACKOVERFLOW=y
> CONFIG_HAVE_ARCH_KMEMCHECK=y
> # CONFIG_KMEMCHECK is not set
> CONFIG_HAVE_ARCH_KASAN=y
> # CONFIG_KASAN is not set
> # CONFIG_DEBUG_SHIRQ is not set
>
> #
> # Debug Lockups and Hangs
> #
> # CONFIG_LOCKUP_DETECTOR is not set
> # CONFIG_DETECT_HUNG_TASK is not set
> # CONFIG_WQ_WATCHDOG is not set
> # CONFIG_PANIC_ON_OOPS is not set
> CONFIG_PANIC_ON_OOPS_VALUE=0
> CONFIG_PANIC_TIMEOUT=0
> # CONFIG_SCHED_DEBUG is not set
> CONFIG_SCHED_INFO=y
> CONFIG_SCHEDSTATS=y
> # CONFIG_SCHED_STACK_END_CHECK is not set
> # CONFIG_DEBUG_TIMEKEEPING is not set
> CONFIG_TIMER_STATS=y
> CONFIG_DEBUG_PREEMPT=y
>
> #
> # Lock Debugging (spinlocks, mutexes, etc...)
> #
> # CONFIG_DEBUG_RT_MUTEXES is not set
> CONFIG_DEBUG_SPINLOCK=y
> CONFIG_DEBUG_MUTEXES=y
> # CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
> # CONFIG_DEBUG_LOCK_ALLOC is not set
> # CONFIG_PROVE_LOCKING is not set
> # CONFIG_LOCK_STAT is not set
> # CONFIG_DEBUG_ATOMIC_SLEEP is not set
> # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
> # CONFIG_LOCK_TORTURE_TEST is not set
> CONFIG_STACKTRACE=y
> # CONFIG_DEBUG_KOBJECT is not set
> CONFIG_DEBUG_BUGVERBOSE=y
> # CONFIG_DEBUG_LIST is not set
> # CONFIG_DEBUG_PI_LIST is not set
> # CONFIG_DEBUG_SG is not set
> # CONFIG_DEBUG_NOTIFIERS is not set
> # CONFIG_DEBUG_CREDENTIALS is not set
>
> #
> # RCU Debugging
> #
> # CONFIG_PROVE_RCU is not set
> # CONFIG_SPARSE_RCU_POINTER is not set
> CONFIG_TORTURE_TEST=y
> CONFIG_RCU_TORTURE_TEST=y
> CONFIG_RCU_TORTURE_TEST_RUNNABLE=y
> CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
> CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT_DELAY=3
> CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
> CONFIG_RCU_TORTURE_TEST_SLOW_INIT_DELAY=3
> CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
> CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP_DELAY=3
> CONFIG_RCU_CPU_STALL_TIMEOUT=21
> CONFIG_RCU_TRACE=y
> # CONFIG_RCU_EQS_DEBUG is not set
> # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
> # CONFIG_NOTIFIER_ERROR_INJECTION is not set
> # CONFIG_FAULT_INJECTION is not set
> # CONFIG_LATENCYTOP is not set
> CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
> # CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set
> CONFIG_USER_STACKTRACE_SUPPORT=y
> CONFIG_NOP_TRACER=y
> CONFIG_HAVE_FUNCTION_TRACER=y
> CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
> CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
> CONFIG_HAVE_DYNAMIC_FTRACE=y
> CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
> CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
> CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
> CONFIG_HAVE_FENTRY=y
> CONFIG_HAVE_C_RECORDMCOUNT=y
> CONFIG_TRACE_CLOCK=y
> CONFIG_RING_BUFFER=y
> CONFIG_EVENT_TRACING=y
> CONFIG_CONTEXT_SWITCH_TRACER=y
> CONFIG_TRACING=y
> CONFIG_GENERIC_TRACER=y
> CONFIG_TRACING_SUPPORT=y
> CONFIG_FTRACE=y
> # CONFIG_FUNCTION_TRACER is not set
> # CONFIG_IRQSOFF_TRACER is not set
> # CONFIG_PREEMPT_TRACER is not set
> # CONFIG_SCHED_TRACER is not set
> # CONFIG_FTRACE_SYSCALLS is not set
> # CONFIG_TRACER_SNAPSHOT is not set
> CONFIG_BRANCH_PROFILE_NONE=y
> # CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
> # CONFIG_PROFILE_ALL_BRANCHES is not set
> # CONFIG_STACK_TRACER is not set
> CONFIG_BLK_DEV_IO_TRACE=y
> CONFIG_KPROBE_EVENT=y
> # CONFIG_UPROBE_EVENT is not set
> CONFIG_PROBE_EVENTS=y
> # CONFIG_FTRACE_STARTUP_TEST is not set
> # CONFIG_MMIOTRACE is not set
> # CONFIG_TRACEPOINT_BENCHMARK is not set
> # CONFIG_RING_BUFFER_BENCHMARK is not set
> # CONFIG_RING_BUFFER_STARTUP_TEST is not set
> # CONFIG_TRACE_ENUM_MAP_FILE is not set
>
> #
> # Runtime Testing
> #
> # CONFIG_LKDTM is not set
> # CONFIG_TEST_LIST_SORT is not set
> # CONFIG_KPROBES_SANITY_TEST is not set
> # CONFIG_BACKTRACE_SELF_TEST is not set
> # CONFIG_RBTREE_TEST is not set
> # CONFIG_INTERVAL_TREE_TEST is not set
> # CONFIG_PERCPU_TEST is not set
> # CONFIG_ATOMIC64_SELFTEST is not set
> # CONFIG_TEST_HEXDUMP is not set
> # CONFIG_TEST_STRING_HELPERS is not set
> # CONFIG_TEST_KSTRTOX is not set
> # CONFIG_TEST_PRINTF is not set
> # CONFIG_TEST_RHASHTABLE is not set
> CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
> # CONFIG_DMA_API_DEBUG is not set
> # CONFIG_TEST_LKM is not set
> # CONFIG_TEST_USER_COPY is not set
> # CONFIG_TEST_BPF is not set
> # CONFIG_TEST_FIRMWARE is not set
> # CONFIG_TEST_UDELAY is not set
> # CONFIG_MEMTEST is not set
> # CONFIG_TEST_STATIC_KEYS is not set
> # CONFIG_SAMPLES is not set
> CONFIG_HAVE_ARCH_KGDB=y
> # CONFIG_KGDB is not set
> CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
> # CONFIG_UBSAN is not set
> CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
> # CONFIG_STRICT_DEVMEM is not set
> CONFIG_X86_VERBOSE_BOOTUP=y
> CONFIG_EARLY_PRINTK=y
> CONFIG_EARLY_PRINTK_DBGP=y
> # CONFIG_EARLY_PRINTK_EFI is not set
> # CONFIG_X86_PTDUMP_CORE is not set
> # CONFIG_X86_PTDUMP is not set
> # CONFIG_EFI_PGT_DUMP is not set
> CONFIG_DEBUG_RODATA=y
> # CONFIG_DEBUG_RODATA_TEST is not set
> # CONFIG_DEBUG_WX is not set
> # CONFIG_DEBUG_SET_MODULE_RONX is not set
> # CONFIG_DEBUG_NX_TEST is not set
> CONFIG_DOUBLEFAULT=y
> # CONFIG_DEBUG_TLBFLUSH is not set
> # CONFIG_IOMMU_STRESS is not set
> CONFIG_HAVE_MMIOTRACE_SUPPORT=y
> # CONFIG_X86_DECODER_SELFTEST is not set
> CONFIG_IO_DELAY_TYPE_0X80=0
> CONFIG_IO_DELAY_TYPE_0XED=1
> CONFIG_IO_DELAY_TYPE_UDELAY=2
> CONFIG_IO_DELAY_TYPE_NONE=3
> CONFIG_IO_DELAY_0X80=y
> # CONFIG_IO_DELAY_0XED is not set
> # CONFIG_IO_DELAY_UDELAY is not set
> # CONFIG_IO_DELAY_NONE is not set
> CONFIG_DEFAULT_IO_DELAY_TYPE=0
> CONFIG_DEBUG_BOOT_PARAMS=y
> # CONFIG_CPA_DEBUG is not set
> CONFIG_OPTIMIZE_INLINING=y
> # CONFIG_DEBUG_ENTRY is not set
> # CONFIG_DEBUG_NMI_SELFTEST is not set
> # CONFIG_X86_DEBUG_STATIC_CPU_HAS is not set
> CONFIG_X86_DEBUG_FPU=y
> # CONFIG_PUNIT_ATOM_DEBUG is not set
>
> #
> # Security options
> #
> CONFIG_KEYS=y
> # CONFIG_PERSISTENT_KEYRINGS is not set
> # CONFIG_BIG_KEYS is not set
> # CONFIG_ENCRYPTED_KEYS is not set
> # CONFIG_SECURITY_DMESG_RESTRICT is not set
> CONFIG_SECURITY=y
> # CONFIG_SECURITYFS is not set
> CONFIG_SECURITY_NETWORK=y
> # CONFIG_SECURITY_NETWORK_XFRM is not set
> # CONFIG_SECURITY_PATH is not set
> # CONFIG_INTEL_TXT is not set
> CONFIG_LSM_MMAP_MIN_ADDR=65536
> CONFIG_SECURITY_SELINUX=y
> CONFIG_SECURITY_SELINUX_BOOTPARAM=y
> CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
> CONFIG_SECURITY_SELINUX_DISABLE=y
> CONFIG_SECURITY_SELINUX_DEVELOP=y
> CONFIG_SECURITY_SELINUX_AVC_STATS=y
> CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=0
> # CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
> # CONFIG_SECURITY_SMACK is not set
> # CONFIG_SECURITY_TOMOYO is not set
> # CONFIG_SECURITY_APPARMOR is not set
> # CONFIG_SECURITY_YAMA is not set
> CONFIG_INTEGRITY=y
> # CONFIG_INTEGRITY_SIGNATURE is not set
> CONFIG_INTEGRITY_AUDIT=y
> # CONFIG_IMA is not set
> # CONFIG_EVM is not set
> CONFIG_DEFAULT_SECURITY_SELINUX=y
> # CONFIG_DEFAULT_SECURITY_DAC is not set
> CONFIG_DEFAULT_SECURITY="selinux"
> CONFIG_CRYPTO=y
>
> #
> # Crypto core or helper
> #
> CONFIG_CRYPTO_ALGAPI=y
> CONFIG_CRYPTO_ALGAPI2=y
> CONFIG_CRYPTO_AEAD=y
> CONFIG_CRYPTO_AEAD2=y
> CONFIG_CRYPTO_BLKCIPHER=y
> CONFIG_CRYPTO_BLKCIPHER2=y
> CONFIG_CRYPTO_HASH=y
> CONFIG_CRYPTO_HASH2=y
> CONFIG_CRYPTO_RNG=y
> CONFIG_CRYPTO_RNG2=y
> CONFIG_CRYPTO_RNG_DEFAULT=y
> CONFIG_CRYPTO_PCOMP2=y
> CONFIG_CRYPTO_AKCIPHER2=y
> # CONFIG_CRYPTO_RSA is not set
> CONFIG_CRYPTO_MANAGER=y
> CONFIG_CRYPTO_MANAGER2=y
> # CONFIG_CRYPTO_USER is not set
> CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
> CONFIG_CRYPTO_GF128MUL=y
> CONFIG_CRYPTO_NULL=y
> CONFIG_CRYPTO_NULL2=y
> # CONFIG_CRYPTO_PCRYPT is not set
> CONFIG_CRYPTO_WORKQUEUE=y
> # CONFIG_CRYPTO_CRYPTD is not set
> # CONFIG_CRYPTO_MCRYPTD is not set
> CONFIG_CRYPTO_AUTHENC=y
> # CONFIG_CRYPTO_TEST is not set
>
> #
> # Authenticated Encryption with Associated Data
> #
> CONFIG_CRYPTO_CCM=y
> CONFIG_CRYPTO_GCM=y
> # CONFIG_CRYPTO_CHACHA20POLY1305 is not set
> CONFIG_CRYPTO_SEQIV=y
> CONFIG_CRYPTO_ECHAINIV=y
>
> #
> # Block modes
> #
> CONFIG_CRYPTO_CBC=y
> CONFIG_CRYPTO_CTR=y
> # CONFIG_CRYPTO_CTS is not set
> # CONFIG_CRYPTO_ECB is not set
> # CONFIG_CRYPTO_LRW is not set
> # CONFIG_CRYPTO_PCBC is not set
> # CONFIG_CRYPTO_XTS is not set
> # CONFIG_CRYPTO_KEYWRAP is not set
>
> #
> # Hash modes
> #
> # CONFIG_CRYPTO_CMAC is not set
> CONFIG_CRYPTO_HMAC=y
> # CONFIG_CRYPTO_XCBC is not set
> # CONFIG_CRYPTO_VMAC is not set
>
> #
> # Digest
> #
> CONFIG_CRYPTO_CRC32C=y
> # CONFIG_CRYPTO_CRC32C_INTEL is not set
> # CONFIG_CRYPTO_CRC32 is not set
> # CONFIG_CRYPTO_CRC32_PCLMUL is not set
> # CONFIG_CRYPTO_CRCT10DIF is not set
> CONFIG_CRYPTO_GHASH=y
> # CONFIG_CRYPTO_POLY1305 is not set
> # CONFIG_CRYPTO_POLY1305_X86_64 is not set
> # CONFIG_CRYPTO_MD4 is not set
> CONFIG_CRYPTO_MD5=y
> # CONFIG_CRYPTO_MICHAEL_MIC is not set
> # CONFIG_CRYPTO_RMD128 is not set
> # CONFIG_CRYPTO_RMD160 is not set
> # CONFIG_CRYPTO_RMD256 is not set
> # CONFIG_CRYPTO_RMD320 is not set
> CONFIG_CRYPTO_SHA1=y
> # CONFIG_CRYPTO_SHA1_SSSE3 is not set
> # CONFIG_CRYPTO_SHA256_SSSE3 is not set
> # CONFIG_CRYPTO_SHA512_SSSE3 is not set
> # CONFIG_CRYPTO_SHA1_MB is not set
> CONFIG_CRYPTO_SHA256=y
> # CONFIG_CRYPTO_SHA512 is not set
> # CONFIG_CRYPTO_TGR192 is not set
> # CONFIG_CRYPTO_WP512 is not set
> # CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL is not set
>
> #
> # Ciphers
> #
> CONFIG_CRYPTO_AES=y
> # CONFIG_CRYPTO_AES_X86_64 is not set
> # CONFIG_CRYPTO_AES_NI_INTEL is not set
> # CONFIG_CRYPTO_ANUBIS is not set
> CONFIG_CRYPTO_ARC4=y
> # CONFIG_CRYPTO_BLOWFISH is not set
> # CONFIG_CRYPTO_BLOWFISH_X86_64 is not set
> # CONFIG_CRYPTO_CAMELLIA is not set
> # CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
> # CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set
> # CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set
> # CONFIG_CRYPTO_CAST5 is not set
> # CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
> # CONFIG_CRYPTO_CAST6 is not set
> # CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
> CONFIG_CRYPTO_DES=y
> # CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
> # CONFIG_CRYPTO_FCRYPT is not set
> # CONFIG_CRYPTO_KHAZAD is not set
> # CONFIG_CRYPTO_SALSA20 is not set
> # CONFIG_CRYPTO_SALSA20_X86_64 is not set
> # CONFIG_CRYPTO_CHACHA20 is not set
> # CONFIG_CRYPTO_CHACHA20_X86_64 is not set
> # CONFIG_CRYPTO_SEED is not set
> # CONFIG_CRYPTO_SERPENT is not set
> # CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
> # CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
> # CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set
> # CONFIG_CRYPTO_TEA is not set
> # CONFIG_CRYPTO_TWOFISH is not set
> # CONFIG_CRYPTO_TWOFISH_X86_64 is not set
> # CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set
> # CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set
>
> #
> # Compression
> #
> # CONFIG_CRYPTO_DEFLATE is not set
> # CONFIG_CRYPTO_ZLIB is not set
> # CONFIG_CRYPTO_LZO is not set
> # CONFIG_CRYPTO_842 is not set
> # CONFIG_CRYPTO_LZ4 is not set
> # CONFIG_CRYPTO_LZ4HC is not set
>
> #
> # Random Number Generation
> #
> # CONFIG_CRYPTO_ANSI_CPRNG is not set
> CONFIG_CRYPTO_DRBG_MENU=y
> CONFIG_CRYPTO_DRBG_HMAC=y
> # CONFIG_CRYPTO_DRBG_HASH is not set
> # CONFIG_CRYPTO_DRBG_CTR is not set
> CONFIG_CRYPTO_DRBG=y
> CONFIG_CRYPTO_JITTERENTROPY=y
> # CONFIG_CRYPTO_USER_API_HASH is not set
> # CONFIG_CRYPTO_USER_API_SKCIPHER is not set
> # CONFIG_CRYPTO_USER_API_RNG is not set
> # CONFIG_CRYPTO_USER_API_AEAD is not set
> CONFIG_CRYPTO_HW=y
> # CONFIG_CRYPTO_DEV_PADLOCK is not set
> # CONFIG_CRYPTO_DEV_CCP is not set
> # CONFIG_CRYPTO_DEV_QAT_DH895xCC is not set
> # CONFIG_CRYPTO_DEV_QAT_C3XXX is not set
> # CONFIG_CRYPTO_DEV_QAT_C62X is not set
> # CONFIG_CRYPTO_DEV_QAT_DH895xCCVF is not set
> # CONFIG_CRYPTO_DEV_QAT_C3XXXVF is not set
> # CONFIG_CRYPTO_DEV_QAT_C62XVF is not set
> # CONFIG_ASYMMETRIC_KEY_TYPE is not set
>
> #
> # Certificates for signature checking
> #
> # CONFIG_SYSTEM_TRUSTED_KEYRING is not set
> CONFIG_HAVE_KVM=y
> CONFIG_VIRTUALIZATION=y
> # CONFIG_KVM is not set
> CONFIG_BINARY_PRINTF=y
>
> #
> # Library routines
> #
> CONFIG_BITREVERSE=y
> # CONFIG_HAVE_ARCH_BITREVERSE is not set
> CONFIG_RATIONAL=y
> CONFIG_GENERIC_STRNCPY_FROM_USER=y
> CONFIG_GENERIC_STRNLEN_USER=y
> CONFIG_GENERIC_NET_UTILS=y
> CONFIG_GENERIC_FIND_FIRST_BIT=y
> CONFIG_GENERIC_PCI_IOMAP=y
> CONFIG_GENERIC_IOMAP=y
> CONFIG_GENERIC_IO=y
> CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
> CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
> # CONFIG_CRC_CCITT is not set
> CONFIG_CRC16=y
> # CONFIG_CRC_T10DIF is not set
> # CONFIG_CRC_ITU_T is not set
> CONFIG_CRC32=y
> # CONFIG_CRC32_SELFTEST is not set
> CONFIG_CRC32_SLICEBY8=y
> # CONFIG_CRC32_SLICEBY4 is not set
> # CONFIG_CRC32_SARWATE is not set
> # CONFIG_CRC32_BIT is not set
> # CONFIG_CRC7 is not set
> # CONFIG_LIBCRC32C is not set
> # CONFIG_CRC8 is not set
> # CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
> # CONFIG_RANDOM32_SELFTEST is not set
> CONFIG_ZLIB_INFLATE=y
> CONFIG_LZO_COMPRESS=y
> CONFIG_LZO_DECOMPRESS=y
> CONFIG_LZ4_DECOMPRESS=y
> CONFIG_XZ_DEC=y
> CONFIG_XZ_DEC_X86=y
> CONFIG_XZ_DEC_POWERPC=y
> CONFIG_XZ_DEC_IA64=y
> CONFIG_XZ_DEC_ARM=y
> CONFIG_XZ_DEC_ARMTHUMB=y
> CONFIG_XZ_DEC_SPARC=y
> CONFIG_XZ_DEC_BCJ=y
> # CONFIG_XZ_DEC_TEST is not set
> CONFIG_DECOMPRESS_GZIP=y
> CONFIG_DECOMPRESS_BZIP2=y
> CONFIG_DECOMPRESS_LZMA=y
> CONFIG_DECOMPRESS_XZ=y
> CONFIG_DECOMPRESS_LZO=y
> CONFIG_DECOMPRESS_LZ4=y
> CONFIG_GENERIC_ALLOCATOR=y
> CONFIG_INTERVAL_TREE=y
> CONFIG_ASSOCIATIVE_ARRAY=y
> CONFIG_HAS_IOMEM=y
> CONFIG_HAS_IOPORT_MAP=y
> CONFIG_HAS_DMA=y
> CONFIG_CHECK_SIGNATURE=y
> CONFIG_CPU_RMAP=y
> CONFIG_DQL=y
> CONFIG_GLOB=y
> # CONFIG_GLOB_SELFTEST is not set
> CONFIG_NLATTR=y
> CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
> # CONFIG_CORDIC is not set
> # CONFIG_DDR is not set
> # CONFIG_IRQ_POLL is not set
> CONFIG_OID_REGISTRY=y
> CONFIG_UCS2_STRING=y
> CONFIG_FONT_SUPPORT=y
> # CONFIG_FONTS is not set
> CONFIG_FONT_8x8=y
> CONFIG_FONT_8x16=y
> # CONFIG_SG_SPLIT is not set
> CONFIG_ARCH_HAS_SG_CHAIN=y
> CONFIG_ARCH_HAS_PMEM_API=y
> CONFIG_ARCH_HAS_MMIO_FLUSH=y
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-30 13:30 ` Paul E. McKenney
@ 2016-03-30 14:15 ` Boqun Feng
0 siblings, 0 replies; 79+ messages in thread
From: Boqun Feng @ 2016-03-30 14:15 UTC (permalink / raw)
To: Paul E. McKenney
Cc: Peter Zijlstra, Jacob Pan, Josh Triplett, Ross Green,
Mathieu Desnoyers, John Stultz, Thomas Gleixner, lkml,
Ingo Molnar, Lai Jiangshan, dipankar, Andrew Morton, rostedt,
David Howells, Eric Dumazet, Darren Hart,
Frédéric Weisbecker, Oleg Nesterov, pranith kumar,
Chatre, Reinette
[-- Attachment #1.1: Type: text/plain, Size: 6291 bytes --]
On Wed, Mar 30, 2016 at 06:30:38AM -0700, Paul E. McKenney wrote:
[...]
> > >
> >
> > I ran several tests similar to this setup in a guest, the guest was
> > running in a 12-core Xeon X5690 host with kernel 4.4.5. The guest was
> > given 16 VCPUs and 2G memory.
> >
> > Rather than RCU stall warnings, I was able to see a bug like this nearly
To be accurate, I did see RCU stall warnings, after the NULL pointer
dereference, but for every run, the NULL pointer dereference always
happened first.
> > *everytime*:
> >
> > [ 308.291635] BUG: unable to handle kernel NULL pointer dereference at (null)
> > [ 308.292063] IP: [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
>
> New one on me!
>
> > [ 308.292063] PGD 0
> > [ 308.292063] Oops: 0002 [#1] PREEMPT SMP
> > [ 308.292063] Modules linked in:
> > [ 308.292063] CPU: 11 PID: 798 Comm: torture_onoff Not tainted 4.5.0-rc1+ #14
> > [ 308.292063] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
> > [ 308.292063] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000
> > [ 308.292063] RIP: 0010:[<ffffffff810b9452>] [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> > [ 308.292063] RSP: 0018:ffff88007c6f7c98 EFLAGS: 00010086
> > [ 308.292063] RAX: dead000000000200 RBX: ffff88007fb6cc00 RCX: ffff88007fa2cc00
> > [ 308.292063] RDX: 0000000000000000 RSI: ffff88007fa2d6d0 RDI: ffff88007fb6cc00
> > [ 308.292063] RBP: ffff88007c6f7cc0 R08: 0000000000000000 R09: ffffffff81e4d360
> > [ 308.292063] R10: ffffea0001f2daa0 R11: 0000000000000000 R12: ffff88007fa2d6d0
> > [ 308.292063] R13: ffff88007fb6cc00 R14: 000000000000000b R15: ffff88007fa2c420
> > [ 308.292063] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000
> > [ 308.292063] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> > [ 308.292063] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
> > [ 308.292063] Stack:
> > [ 308.292063] ffff88007fb6cc00 ffff88007fa2d6d8 ffff88007fa2dad0 ffff88007fa2d8d0
> > [ 308.292063] ffff88007fa2d4d8 ffff88007c6f7d08 ffffffff810b95c4 ffff88007fa2cc00
> > [ 308.292063] ffff88007fa2d648 00000000fffffff0 ffffffff81e4e0c0 0000000000000007
> > [ 308.292063] Call Trace:
> > [ 308.292063] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
> > [ 308.292063] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
> > [ 308.292063] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
> > [ 308.292063] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
> > [ 308.292063] [<ffffffff81057852>] _cpu_down+0x212/0x350
> > [ 308.292063] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
> > [ 308.292063] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
> > [ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> > [ 308.292063] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
> > [ 308.292063] [<ffffffff810579bf>] cpu_down+0x2f/0x50
> > [ 308.292063] [<ffffffff811266b5>] torture_onoff+0x115/0x380
> > [ 308.292063] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
> > [ 308.292063] [<ffffffff810732f6>] kthread+0xd6/0xf0
> > [ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> > [ 308.292063] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
> > [ 308.292063] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
> > [ 308.292063] Code: 56 41 55 41 54 53 48 8b 06 44 8b 77 40 48 85 c0 74 53 49 89 fd 49 89 f4 4d 8b 3c 24 66 66 66 66 90 49 8b 07 49 8b 57 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 00 00 00 00 ad de 4c 89
> > [ 308.292063] RIP [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
> > [ 308.292063] RSP <ffff88007c6f7c98>
> > [ 308.292063] CR2: 0000000000000000
> > [ 308.292063] ---[ end trace 29cb5d70ad875872 ]---
> >
> >
> > I'm not sure whether this is relevant, maybe this was caused by my
> > setup? But I attach two kernel logs and my config in case this could
> > help us solve the problem.
> >
> > Another interesting I observed was that the time stamps of printk went
> > back in a while in some run, please note the log named "dmesg.1" in the
> > attachments.
>
> That can cause all sorts of problems, including RCU CPU stall warnings.
>
> So I see the following in dmesg.1, courtesy of:
>
> sed -e 's/].*$//' < /tmp/dmesg.1 | awk '{ if (oldtime != "" && oldtime > $2) print; oldtime = $2 }'
>
> 1.128644 -> 1.128642: Only two microseconds backwards, so not enough
> to cause a stall warning (need about 21 seconds for that).
> 1.143582 -> 1.143575: Seven microseconds backwards.
> 316.386056 -> 421.191446: 104.8 seconds backwards, plenty to cause
> all sorts of problems, including stall warnings.
> 311.122004 -> 316.338053: 5.2 seconds backwards, can cause all sorts
> of problems, but not likely stall warnings.
>
> > A quick analysis of this bug is the null dereference happened at:
> >
> > migrate_timer_list()
> > detach_timer();
> > __list_del();
> > WRITE_ONCE(*pprev, next); <- pprev is NULL
> >
> > This seems highly unlikely, but as I said, I hit this almost every time
> > after a few minutes of starting rcutoture.
>
> Looks like a malformed list, which does look quite ugly. No idea
> whether or not this could be related to backwards-going time, but
> fixing the backwards-going time is a good first step.
>
> > Any idea about whether this could be related to the RCU stall problem,
> > or this is another bug, or this actually happend by design for some
> > reasons?
>
> One of your backwards-time incidents could cause both the RCU CPU stall
> warnings and also the soft lockup I see there.
>
> If this is an older system, it might have an unreliable TSC. If the
> kernel is nevertheless using TSC, this sort of thing could happen.
> The usual advice is to boot using HPET, but perhaps others on the
> list have more specific advice.
>
I tried another run, the kernel was compiled with HPET=y and boot
parameters "hpet=force notsc" and I still hit the same problem, any
suggestion for me to go further to get rid of TSC's impact?
Kernel log attached.
Regards,
Boqun
> Thanx, Paul
>
[-- Attachment #1.2: dmesg.3 --]
[-- Type: text/plain, Size: 161094 bytes --]
[ 0.000000] Linux version 4.5.0-rc1+ (root@insomnia) (gcc version 5.3.0 (GCC) ) #14 SMP PREEMPT Wed Mar 30 20:01:04 CST 2016
[ 0.000000] Command line: hpet=force notsc selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
[ 0.000000] x86/fpu: Legacy x87 FPU detected.
[ 0.000000] x86/fpu: Using 'lazy' FPU context switches.
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdefff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007ffdf000-0x000000007fffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 2.8 present.
[ 0.000000] e820: last_pfn = 0x7ffdf max_arch_pfn = 0x400000000
[ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
[ 0.000000] found SMP MP-table at [mem 0x000f6a50-0x000f6a5f] mapped at [ffff8800000f6a50]
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] Using GB pages for direct mapping
[ 0.000000] RAMDISK: [mem 0x7fcd4000-0x7ffcffff]
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x00000000000F6A00 000014 (v00 BOCHS )
[ 0.000000] ACPI: RSDT 0x000000007FFE1580 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACP 0x000000007FFE061A 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
[ 0.000000] ACPI: DSDT 0x000000007FFDFA80 000B9A (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACS 0x000000007FFDFA40 000040
[ 0.000000] ACPI: SSDT 0x000000007FFE068E 000DCA (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: APIC 0x000000007FFE1458 0000F0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
[ 0.000000] ACPI: HPET 0x000000007FFE1548 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007ffdefff]
[ 0.000000] NODE_DATA(0) allocated [mem 0x7ffdb000-0x7ffdefff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.000000] DMA32 [mem 0x0000000001000000-0x000000007ffdefff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.000000] node 0: [mem 0x0000000000100000-0x000000007ffdefff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000007ffdefff]
[ 0.000000] ACPI: PM-Timer IO Port: 0x608
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.000000] smpboot: Allowing 16 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 0.000000] e820: [mem 0x80000000-0xfeffbfff] available for PCI devices
[ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
[ 0.000000] setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:16 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 32 pages/cpu @ffff88007fa00000 s92008 r8192 d30872 u131072
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 515944
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: hpet=force notsc selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30
[ 0.000000] tsc: Kernel compiled with CONFIG_X86_TSC, cannot disable TSC completely
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Memory: 2040780K/2096628K available (8931K kernel code, 1258K rwdata, 3700K rodata, 1092K init, 984K bss, 55848K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=16, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] RCU debugfs-based tracing is enabled.
[ 0.000000] CONFIG_RCU_FANOUT set to non-default value of 2
[ 0.000000] RCU torture testing starts during boot.
[ 0.000000] Four(or more)-level hierarchy is enabled.
[ 0.000000] Build-time adjustment of leaf fanout to 2.
[ 0.000000] RCU kthread priority: 2.
[ 0.000000] NR_IRQS:4352 nr_irqs:552 16
[ 0.000000] Console: colour *CGA 80x25
[ 0.000000] console [ttyS0] enabled
[ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
[ 0.000000] tsc: Fast TSC calibration using PIT
[ 0.000000] tsc: Detected 3467.095 MHz processor
[ 0.003000] Calibrating delay loop... 3416.06 BogoMIPS (lpj=1708032)
[ 0.009000] pid_max: default: 32768 minimum: 301
[ 0.009000] ACPI: Core revision 20160108
[ 0.010000] ACPI: 2 ACPI AML tables successfully acquired and loaded
[ 0.011000]
[ 0.011000] Security Framework initialized
[ 0.011000] SELinux: Disabled at boot.
[ 0.012000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.013000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.013000] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.014000] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.015000] mce: CPU supports 10 MCE banks
[ 0.015000] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.016000] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 0.017000] Freeing SMP alternatives memory: 32K (ffffffff8204d000 - ffffffff82055000)
[ 0.018000] Switched APIC routing to physical flat.
[ 0.019000] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.029000] smpboot: CPU0: Intel(R) Xeon(R) CPU X5690 @ 3.47GHz (family: 0x6, model: 0x2c, stepping: 0x2)
[ 0.030000] Performance Events: 16-deep LBR, Westmere events, Intel PMU driver.
[ 0.030000] perf_event_intel: CPUID marked event: 'bus cycles' unavailable
[ 0.031000] ... version: 2
[ 0.031000] ... bit width: 48
[ 0.031000] ... generic registers: 4
[ 0.032000] ... value mask: 0000ffffffffffff
[ 0.032000] ... max period: 000000007fffffff
[ 0.032000] ... fixed-purpose events: 3
[ 0.033000] ... event mask: 000000070000000f
[ 0.042000] x86: Booting SMP configuration:
[ 0.042000] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15
[ 0.200000] x86: Booted up 1 node, 16 CPUs
[ 0.200000] smpboot: Total of 16 processors activated (49061.88 BogoMIPS)
[ 0.203000] devtmpfs: initialized
[ 0.204000] kworker/u32:0 (98) used greatest stack depth: 14264 bytes left
[ 0.204000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[ 0.204000] RTC time: 14:05:24, date: 03/30/16
[ 0.204000] NET: Registered protocol family 16
[ 0.206000] kworker/u32:0 (106) used greatest stack depth: 13928 bytes left
[ 0.211000] cpuidle: using governor menu
[ 0.211000] ACPI: bus type PCI registered
[ 0.211000] PCI: Using configuration type 1 for base access
[ 0.226000] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 0.228000] ACPI: Added _OSI(Module Device)
[ 0.228000] ACPI: Added _OSI(Processor Device)
[ 0.229000] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.229000] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.231000] ACPI: Interpreter enabled
[ 0.232000] ACPI: (supports S0 S3 S4 S5)
[ 0.232000] ACPI: Using IOAPIC for interrupt routing
[ 0.232000] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.237000] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 0.238000] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
[ 0.238000] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
[ 0.239000] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
[ 0.240000] PCI host bridge to bus 0000:00
[ 0.240000] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
[ 0.241000] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
[ 0.241000] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[ 0.242000] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff window]
[ 0.242000] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 0.246000] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
[ 0.247000] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
[ 0.247000] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
[ 0.247000] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
[ 0.248000] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI
[ 0.248000] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB
[ 0.250000] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[ 0.251000] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
[ 0.251000] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[ 0.252000] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
[ 0.252000] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
[ 0.254000] ACPI: Enabled 16 GPEs in block 00 to 0F
[ 0.254000] vgaarb: loaded
[ 0.254000] SCSI subsystem initialized
[ 0.256000] ACPI: bus type USB registered
[ 0.256000] usbcore: registered new interface driver usbfs
[ 0.257000] usbcore: registered new interface driver hub
[ 0.257000] usbcore: registered new device driver usb
[ 0.258000] pps_core: LinuxPPS API ver. 1 registered
[ 0.258000] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.259000] PTP clock support registered
[ 0.261000] Advanced Linux Sound Architecture Driver Initialized.
[ 0.261000] PCI: Using ACPI for IRQ routing
[ 0.262000] NetLabel: Initializing
[ 0.262000] NetLabel: domain hash size = 128
[ 0.262000] NetLabel: protocols = UNLABELED CIPSOv4
[ 0.263000] NetLabel: unlabeled traffic allowed by default
[ 0.263000] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[ 0.264000] hpet0: 3 comparators, 64-bit 100.000000 MHz counter
[ 0.269000] clocksource: Switched to clocksource hpet
[ 0.277032] VFS: Disk quotas dquot_6.6.0
[ 0.277276] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.277276] pnp: PnP ACPI init
[ 0.279112] pnp: PnP ACPI: found 5 devices
[ 0.286022] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[ 0.286116] NET: Registered protocol family 2
[ 0.286116] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[ 0.287310] TCP bind hash table entries: 16384 (order: 7, 524288 bytes)
[ 0.287310] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.288622] UDP hash table entries: 1024 (order: 4, 98304 bytes)
[ 0.289225] UDP-Lite hash table entries: 1024 (order: 4, 98304 bytes)
[ 0.289225] NET: Registered protocol family 1
[ 0.291131] RPC: Registered named UNIX socket transport module.
[ 0.291131] RPC: Registered udp transport module.
[ 0.291399] RPC: Registered tcp transport module.
[ 0.291399] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.292367] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[ 0.292367] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[ 0.293400] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[ 0.293400] Unpacking initramfs...
[ 0.339036] Freeing initrd memory: 3056K (ffff88007fcd4000 - ffff88007ffd0000)
[ 0.342028] Scanning for low memory corruption every 60 seconds
[ 0.342044] rcu-torture:--- Start of test: nreaders=15 nfakewriters=4 stat_interval=60 verbose=1 test_no_idle_hz=1 shuffle_interval=3 stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 fqs_stutter=3 test_boost=1/0 test_boost_interval=7 test_boost_duration=4 shutdown_secs=0 stall_cpu=0 stall_cpu_holdoff=10 n_barrier_cbs=0 onoff_interval=1 onoff_holdoff=0
[ 0.344754] rcu-torture: Creating rcu_torture_writer task
[ 0.345314] rcu-torture: Creating rcu_torture_fakewriter task
[ 0.345314] rcu-torture: rcu_torture_writer task started
[ 0.346409] rcu-torture: Creating rcu_torture_fakewriter task
[ 0.346409] rcu-torture: rcu_torture_fakewriter task started
[ 0.347428] rcu-torture: Grace periods expedited from boot/sysfs for rcu,
[ 0.347428] rcu-torture: Creating rcu_torture_fakewriter task
[ 0.348084] rcu-torture: rcu_torture_fakewriter task started
[ 0.348513] rcu-torture: Testing of dynamic grace-period expediting diabled.
[ 0.349513] rcu-torture: Creating rcu_torture_fakewriter task
[ 0.349513] rcu-torture: rcu_torture_fakewriter task started
[ 0.349513] rcu-torture: Creating rcu_torture_reader task
[ 0.349513] rcu-torture: rcu_torture_fakewriter task started
[ 0.351030] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351040] rcu-torture: Creating rcu_torture_reader task
[ 0.351040] rcu-torture: rcu_torture_reader task started
[ 0.351053] rcu-torture: Creating rcu_torture_reader task
[ 0.351097] rcu-torture: Creating rcu_torture_stats task
[ 0.351097] rcu-torture: rcu_torture_reader task started
[ 0.351163] rcu-torture: rcu_torture_reader task started
[ 0.351162] rcu-torture: Creating torture_shuffle task
[ 0.351162] rcu-torture: rcu_torture_stats task started
[ 0.351162] rcu-torture: Creating torture_stutter task
[ 0.351162] rcu-torture: torture_shuffle task started
[ 0.351162] rcu-torture: Creating torture_onoff task
[ 0.351162] rcu-torture: torture_stutter task started
[ 0.351162] rcu-torture: Creating rcu_torture_cbflood task
[ 0.351162] rcu-torture: torture_onoff task started
[ 0.351162] rcu-torture:torture_onoff task: offlining 13
[ 0.351163] rcu-torture: Creating rcu_torture_cbflood task
[ 0.351163] rcu-torture: rcu_torture_cbflood task started
[ 0.351163] rcu-torture: Creating rcu_torture_cbflood task
[ 0.351163] rcu-torture: Creating rcu_torture_cbflood task
[ 0.353035] rcu-torture: rcu_torture_cbflood task started
[ 0.352049] rcu-torture: rcu_torture_cbflood task started
[ 0.353035] rcu-torture: rcu_torture_cbflood task started
[ 0.389053] rcu-torture:torture_onoff task: offlined 13
[ 0.389141] futex hash table entries: 4096 (order: 6, 262144 bytes)
[ 0.389141] audit: initializing netlink subsys (disabled)
[ 0.389141] audit: type=2000 audit(1459346724.389:1): initialized
[ 0.394035] NFS: Registering the id_resolver key type
[ 0.394270] Key type id_resolver registered
[ 0.394270] Key type id_legacy registered
[ 0.397105] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[ 0.397762] io scheduler noop registered
[ 0.398252] io scheduler deadline registered
[ 0.398252] io scheduler cfq registered (default)
[ 0.400031] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 0.400031] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[ 0.400530] ACPI: Power Button [PWRF]
[ 0.402040] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.422759] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 0.425041] Non-volatile memory driver v1.3
[ 0.425041] Linux agpgart interface v0.103
[ 0.425041] [drm] Initialized drm 1.1.0 20060810
[ 0.431041] loop: module loaded
[ 0.432226] scsi host0: ata_piix
[ 0.432237] scsi host1: ata_piix
[ 0.432237] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc000 irq 14
[ 0.433721] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc008 irq 15
[ 0.434358] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
[ 0.435140] e100: Copyright(c) 1999-2006 Intel Corporation
[ 0.435140] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[ 0.436277] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 0.436277] sky2: driver version 1.30
[ 0.437178] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.437178] ehci-pci: EHCI PCI platform driver
[ 0.438346] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.438346] ohci-pci: OHCI PCI platform driver
[ 0.439361] uhci_hcd: USB Universal Host Controller Interface driver
[ 0.439361] usbcore: registered new interface driver usblp
[ 0.440474] usbcore: registered new interface driver usb-storage
[ 0.442029] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
[ 0.443023] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 0.443023] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 0.444065] mousedev: PS/2 mouse device common for all mice
[ 0.444184] rtc_cmos 00:00: RTC can wake from S4
[ 0.444184] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0
[ 0.445646] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram, hpet irqs
[ 0.446675] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 0.447659] hidraw: raw HID events driver (C) Jiri Kosina
[ 0.448258] usbcore: registered new interface driver usbhid
[ 0.448258] usbhid: USB HID core driver
[ 0.450040] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
[ 0.451072] Netfilter messages via NETLINK v0.30.
[ 0.451072] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 0.451072] ctnetlink v0.93: registering with nfnetlink.
[ 0.466084] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 0.471062] Initializing XFRM netlink socket
[ 0.471598] NET: Registered protocol family 10
[ 0.473087] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 0.490021] sit: IPv6 over IPv4 tunneling driver
[ 0.491183] NET: Registered protocol family 17
[ 0.492024] Key type dns_resolver registered
[ 0.493114] microcode: CPU0 sig=0x206c2, pf=0x1, revision=0x1
[ 0.495107] microcode: CPU1 sig=0x206c2, pf=0x1, revision=0x1
[ 0.495168] microcode: CPU2 sig=0x206c2, pf=0x1, revision=0x1
[ 0.495589] microcode: CPU3 sig=0x206c2, pf=0x1, revision=0x1
[ 0.502194] microcode: CPU4 sig=0x206c2, pf=0x1, revision=0x1
[ 0.503126] microcode: CPU5 sig=0x206c2, pf=0x1, revision=0x1
[ 0.504091] microcode: CPU6 sig=0x206c2, pf=0x1, revision=0x1
[ 0.504036] microcode: CPU7 sig=0x206c2, pf=0x1, revision=0x1
[ 0.504053] microcode: CPU8 sig=0x206c2, pf=0x1, revision=0x1
[ 0.505116] microcode: CPU9 sig=0x206c2, pf=0x1, revision=0x1
[ 0.505061] microcode: CPU10 sig=0x206c2, pf=0x1, revision=0x1
[ 0.506053] microcode: CPU11 sig=0x206c2, pf=0x1, revision=0x1
[ 0.506026] microcode: CPU12 sig=0x206c2, pf=0x1, revision=0x1
[ 0.508095] microcode: CPU14 sig=0x206c2, pf=0x1, revision=0x1
[ 0.507139] microcode: CPU15 sig=0x206c2, pf=0x1, revision=0x1
[ 0.509067] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[ 0.509329] registered taskstats version 1
[ 0.511033] Magic number: 8:234:82
[ 0.511033] console [netcon0] enabled
[ 0.511033] netconsole: network logging started
[ 0.511254] ALSA device list:
[ 0.511254] No soundcards found.
[ 0.588057] Freeing unused kernel memory: 1092K (ffffffff81f3c000 - ffffffff8204d000)
[ 0.589129] Write protecting the kernel read-only data: 14336k
[ 0.592046] Freeing unused kernel memory: 1296K (ffff8800018bc000 - ffff880001a00000)
[ 0.594022] Freeing unused kernel memory: 396K (ffff880001d9d000 - ffff880001e00000)
:: running early hook [udev]
Warning: /lib/modules/4.5.0-rc1+/modules.devname not found - ignoring
[ 0.605171] random: systemd-tmpfile urandom read with 2 bits of entropy available
[ 0.606659] systemd-tmpfile (1176) used greatest stack depth: 13896 bytes left
starting version 228
:: running hook [udev]
:: Triggering uevents...
[ 0.699039] systemd-udevd (1190) used greatest stack depth: 13888 bytes left
ERROR: device '' not found. Skipping fsck.
ERROR: Unable to find root device ''.
You are being dropped to a recovery shell
Type 'exit' to try and continue booting
sh: can't access tty; job control turned off
[rootfs /]# [ 1.057112] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
[ 1.392056] rcu-torture:torture_onoff task: offlining 8
[ 1.607043] hrtimer: interrupt took 5051140 ns
[ 1.616058] smpboot: CPU 8 is now offline
[ 1.663068] rcu-torture:torture_onoff task: offlined 8
[ 2.663063] rcu-torture:torture_onoff task: offlining 2
[ 3.017066] smpboot: CPU 2 is now offline
[ 3.071046] rcu-torture:torture_onoff task: offlined 2
[ 4.072035] rcu-torture:torture_onoff task: offlining 9
[ 4.240047] smpboot: CPU 9 is now offline
[ 4.295063] rcu-torture:torture_onoff task: offlined 9
[ 5.297036] rcu-torture:torture_onoff task: offlining 12
[ 5.399044] smpboot: CPU 12 is now offline
[ 5.454051] rcu-torture:torture_onoff task: offlined 12
[ 6.454036] rcu-torture:torture_onoff task: onlining 13
[ 6.509046] smpboot: Booting Node 0 Processor 13 APIC 0xd
[ 6.546026] microcode: CPU13 sig=0x206c2, pf=0x1, revision=0x1
[ 6.546026] rcu-torture:torture_onoff task: onlined 13
[ 7.546045] rcu-torture:torture_onoff task: offlining 11
[ 7.602125] smpboot: CPU 11 is now offline
[ 7.695044] rcu-torture:torture_onoff task: offlined 11
[ 8.695045] rcu-torture:torture_onoff task: offlining 5
[ 8.751103] smpboot: CPU 5 is now offline
[ 8.808024] rcu-torture:torture_onoff task: offlined 5
[ 9.807032] rcu-torture:torture_onoff task: onlining 12
[ 9.861053] smpboot: Booting Node 0 Processor 12 APIC 0xc
[ 9.905032] rcu-torture:torture_onoff task: onlined 12
[ 10.905040] rcu-torture:torture_onoff task: offlining 14
[ 10.912099] smpboot: CPU 14 is now offline
[ 10.966050] rcu-torture:torture_onoff task: offlined 14
[ 11.966038] rcu-torture:torture_onoff task: offlining 13
[ 12.173064] smpboot: CPU 13 is now offline
[ 12.173064] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 12.174064] IP: [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 12.174064] PGD 0
[ 12.174064] Oops: 0002 [#1] PREEMPT SMP
[ 12.174064] Modules linked in:
[ 12.174064] CPU: 1 PID: 795 Comm: torture_onoff Not tainted 4.5.0-rc1+ #14
[ 12.174064] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 12.174064] task: ffff88007c651900 ti: ffff88007c660000 task.ti: ffff88007c660000
[ 12.174064] RIP: 0010:[<ffffffff810b9452>] [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 12.174064] RSP: 0018:ffff88007c663c98 EFLAGS: 00010086
[ 12.174064] RAX: dead000000000200 RBX: ffff88007fa2cc00 RCX: 00000000000000af
[ 12.174064] RDX: 0000000000000000 RSI: ffff88007fbad648 RDI: ffff88007fa2cc00
[ 12.174064] RBP: ffff88007c663cc0 R08: 0000000000000000 R09: ffff88007fa2cc00
[ 12.174064] R10: ffff88007c61be30 R11: 0000000000018f70 R12: ffff88007fbad648
[ 12.174064] R13: ffff88007fa2cc00 R14: 0000000000000001 R15: ffff88007fbac420
[ 12.174064] FS: 0000000000000000(0000) GS:ffff88007fa20000(0000) knlGS:0000000000000000
[ 12.174064] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 12.174064] CR2: 0000000000000000 CR3: 000000007b124000 CR4: 00000000000006e0
[ 12.174064] Stack:
[ 12.174064] ffff88007fa2cc00 ffff88007fbad650 ffff88007fbada48 ffff88007fbad848
[ 12.174064] ffff88007fbad450 ffff88007c663d08 ffffffff810b95c4 ffff88007fbacc00
[ 12.174064] ffff88007fbad648 00000000fffffff0 ffffffff81e4e0c0 0000000000000007
[ 12.174064] Call Trace:
[ 12.174064] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 12.174064] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 12.174064] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 12.174064] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 12.174064] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 12.174064] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 12.174064] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 12.174064] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 12.174064] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 12.174064] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 12.174064] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 12.174064] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 12.174064] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 12.174064] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 12.174064] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 12.174064] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 12.174064] Code: 56 41 55 41 54 53 48 8b 06 44 8b 77 40 48 85 c0 74 53 49 89 fd 49 89 f4 4d 8b 3c 24 66 66 66 66 90 49 8b 07 49 8b 57 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 00 00 00 00 ad de 4c 89
[ 12.174064] RIP [<ffffffff810b9452>] migrate_timer_list+0x32/0xc0
[ 12.174064] RSP <ffff88007c663c98>
[ 12.174064] CR2: 0000000000000000
[ 12.174064] ---[ end trace 3ef597e7ab20460c ]---
[ 12.174064] note: torture_onoff[795] exited with preempt_count 3
[ 15.414020] BUG: spinlock lockup suspected on CPU#3, rcu_torture_fak/773
[ 15.414020] lock: 0xffff88007fa2cc00, .magic: dead4ead, .owner: torture_onoff/795, .owner_cpu: 1
[ 15.414020] CPU: 3 PID: 773 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] ffff88007fa2cc00 ffff88007c64bce8 ffffffff8132cd6c ffff88007c651900
[ 15.414020] ffff88007c64bd08 ffffffff81092fb3 ffff88007fa2cc00 0000000057288000
[ 15.414020] ffff88007c64bd38 ffffffff810930db 0000000000000286 ffff88007fa2cc00
[ 15.414020] Call Trace:
[ 15.414020] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 15.414020] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 15.414020] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 15.414020] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 15.414020] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 15.414020] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 15.414020] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 15.414020] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 15.414020] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 15.414020] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 15.414020] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 15.414020] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 15.414020] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] Sending NMI to all CPUs:
[ 15.414020] NMI backtrace for cpu 0
[ 15.414020] CPU: 0 PID: 779 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] task: ffff88007c644b00 ti: ffff88007cab0000 task.ti: ffff88007cab0000
[ 15.414020] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
[ 15.414020] RSP: 0018:ffff88007cab3df0 EFLAGS: 00000202
[ 15.414020] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 15.414020] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb
[ 15.414020] RBP: ffff88007cab3e00 R08: ffff88007cab0000 R09: ffff88007fa0cc00
[ 15.414020] R10: ffff88007cab3e30 R11: 0000000000000001 R12: 0000000000000000
[ 15.414020] R13: 0000000392ee6980 R14: 0000000000000072 R15: ffffffff820d6e80
[ 15.414020] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 15.414020] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.414020] CR2: 00007ffd0da7e3bc CR3: 0000000001e0f000 CR4: 00000000000006f0
[ 15.414020] Stack:
[ 15.414020] ffffffff81126479 0000000000000000 ffff88007cab3ea8 ffffffff810ad3ce
[ 15.414020] 0000000000000000 0000000081a0a240 e24ff85eb6c56d81 00000000000023ff
[ 15.414020] dead000000000200 0000000000000000 00000000fffba817 ffffffff810ad590
[ 15.414020] Call Trace:
[ 15.414020] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 15.414020] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 15.414020] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.414020] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.414020] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
[ 12.315013] BUG: spinlock lockup suspected on CPU#7, rcu_torture_rea/791
[ 12.315013] lock: 0xffff88007fbacc00, .magic: dead4ead, .owner: torture_onoff/795, .owner_cpu: 1
[ 12.315013] CPU: 7 PID: 791 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 12.315013] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 12.315013] ffff88007fbacc00 ffff88007c60bd10 ffffffff8132cd6c ffff88007c651900
[ 12.315013] ffff88007c60bd30 ffffffff81092fb3 ffff88007fbacc00 0000000057288000
[ 12.315013] ffff88007c60bd60 ffffffff810930db 0000000000000286 ffff88007fbacc00
[ 12.315013] Call Trace:
[ 12.315013] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 12.315013] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 12.315013] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 12.315013] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 12.315013] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 12.315013] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 12.315013] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 12.315013] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 12.315013] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 12.315013] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 12.315013] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 12.315013] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 12.315013] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] NMI backtrace for cpu 1
[ 15.414020] CPU: 1 PID: 795 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] task: ffff88007c651900 ti: ffff88007c660000 task.ti: ffff88007c660000
[ 15.414020] RIP: 0010:[<ffffffff813392d0>] [<ffffffff813392d0>] delay_loop+0x0/0x30
[ 15.414020] RSP: 0018:ffff88007fa23e68 EFLAGS: 00000002
[ 15.414020] RAX: 0000000000000001 RBX: ffff88007fa2cc00 RCX: 0000000000208044
[ 15.414020] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: 0000000000000001
[ 15.414020] RBP: ffff88007fa23e70 R08: ffff88007fa2e140 R09: 000000000000000e
[ 15.414020] R10: 000000000000022d R11: 0000000000000020 R12: 00000000546c6ab5
[ 15.414020] R13: 0000000000000001 R14: 0000000057288000 R15: 0000000000000000
[ 15.414020] FS: 0000000000000000(0000) GS:ffff88007fa20000(0000) knlGS:0000000000000000
[ 15.414020] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.414020] CR2: 0000000000000000 CR3: 000000007b124000 CR4: 00000000000006e0
[ 15.414020] Stack:
[ 15.414020] ffffffff8133930a ffff88007fa23ea0 ffffffff810930c7 ffff88007fa2cc00
[ 15.414020] ffffffff81e080c8 0000000000000001 0000000000000001 ffff88007fa23eb8
[ 15.414020] ffffffff818b3ffb ffff88007fa2cc00 ffff88007fa23f20 ffffffff810b91b0
[ 15.414020] Call Trace:
[ 15.414020] <IRQ> \x01d [<ffffffff8133930a>] ? __delay+0xa/0x10
[ 15.414020] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 15.414020] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 15.414020] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 15.414020] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 15.414020] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 15.414020] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 15.414020] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 15.414020] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 15.414020] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 15.414020] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 15.414020] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 15.414020] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 15.414020] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 15.414020] [<ffffffff8104a612>] no_context+0x102/0x330
[ 15.414020] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 15.414020] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 15.414020] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 15.414020] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 15.414020] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 15.414020] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 15.414020] [<ffffffff810b9483>] ? migrate_timer_list+0x63/0xc0
[ 15.414020] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 15.414020] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 15.414020] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 15.414020] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 15.414020] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 15.414020] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 15.414020] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 15.414020] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 15.414020] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 15.414020] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 15.414020] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 15.414020] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 15.414020] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] Code: c3 66 2e 0f 1f 84 00 00 00 00 00 55 41 89 d2 48 89 e5 e8 54 fe ff ff 5d 44 01 d0 83 d0 00 c3 90 90 90 90 90 90 90 90 90 90 90 90 <55> 48 89 f8 48 89 e5 48 85 c0 74 19 eb 02 66 90 eb 0e 0f 1f 40
[ 15.414020] NMI backtrace for cpu 3
[ 15.414020] CPU: 3 PID: 773 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] task: ffff88007c640000 ti: ffff88007c648000 task.ti: ffff88007c648000
[ 15.414020] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 15.414020] RSP: 0018:ffff88007c64bc68 EFLAGS: 00000046
[ 15.414020] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000003
[ 15.414020] RDX: 0000000000000003 RSI: 0000000000000010 RDI: 0000000000000300
[ 15.414020] RBP: ffff88007c64bca0 R08: 0000000000000000 R09: 00000000000094db
[ 15.414020] R10: ffff88007c64bf58 R11: 00000000000001f8 R12: ffffffff81f31740
[ 15.414020] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000003
[ 15.414020] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
[ 15.414020] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.414020] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.414020] Stack:
[ 15.414020] 0000000000000082 000000037c64bc78 000000000000ff40 0000000000000001
[ 15.414020] ffffffff8103fd20 0000000057288000 ffff88007c64bda0 ffff88007c64bcb0
[ 15.414020] ffffffff8103fd36 ffff88007c64bcf8 ffffffff81331299 ffffffff81008b50
[ 15.414020] Call Trace:
[ 15.414020] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 15.414020] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 15.414020] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 15.414020] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 15.414020] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 15.414020] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 15.414020] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 15.414020] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 15.414020] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 15.414020] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 15.414020] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 15.414020] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 15.414020] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 15.414020] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 15.414020] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 15.414020] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 15.414020] NMI backtrace for cpu 4
[ 15.414020] CPU: 4 PID: 0 Comm: swapper/4 Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] task: ffff88007cc63e80 ti: ffff88007cc7c000 task.ti: ffff88007cc7c000
[ 15.414020] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
[ 15.414020] RSP: 0018:ffff88007cc7fec0 EFLAGS: 00000202
[ 15.414020] RAX: 0000000000000004 RBX: ffff88007cc80000 RCX: 0000000000000000
[ 15.414020] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 15.414020] RBP: ffff88007cc7fed0 R08: 0000000000000000 R09: 0000000000000000
[ 15.414020] R10: 0000000000000400 R11: 0000000000000002 R12: 0000000000000000
[ 15.414020] R13: 0000000000000000 R14: ffff88007cc7c000 R15: ffff88007cc7c000
[ 15.414020] FS: 0000000000000000(0000) GS:ffff88007fa80000(0000) knlGS:0000000000000000
[ 15.414020] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.414020] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.414020] Stack:
[ 15.414020] ffff88007cc80000 0000000000000000 ffff88007cc7fee0 ffffffff8100fafa
[ 15.414020] ffff88007cc7fef0 ffffffff8108fd65 ffff88007cc7ff30 ffffffff8108fff7
[ 15.414020] ffff88007cc80000 0000000000000004 0000000000000000 0000000000000000
[ 15.414020] Call Trace:
[ 15.414020] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 15.414020] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 15.414020] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 15.414020] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 15.414020] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
[ 15.414020] NMI backtrace for cpu 6
[ 15.414020] CPU: 6 PID: 775 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] task: ffff88007c641900 ti: ffff88007c610000 task.ti: ffff88007c610000
[ 15.414020] RIP: 0010:[<ffffffff813392d0>] [<ffffffff813392d0>] delay_loop+0x0/0x30
[ 15.414020] RSP: 0018:ffff88007c613d00 EFLAGS: 00000006
[ 15.414020] RAX: 0000000000000001 RBX: ffff88007fa2cc00 RCX: 0000000000000001
[ 15.414020] RDX: 0000000000000000 RSI: ffff88007c613da0 RDI: 0000000000000001
[ 15.414020] RBP: ffff88007c613d08 R08: ffff88007c610000 R09: 0000000000000002
[ 15.414020] R10: 0000000000000000 R11: 0000000000000b6e R12: 000000002ec4668b
[ 15.414020] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007c613da0
[ 15.414020] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
[ 15.414020] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.414020] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.414020] Stack:
[ 15.414020] ffffffff8133930a ffff88007c613d38 ffffffff810930c7 0000000000000286
[ 15.414020] ffff88007fa2cc00 ffff88007fa2cc00 000000000000cc00 ffff88007c613d58
[ 15.414020] ffffffff818b401f 0000000000000001 ffff88007c613e18 ffff88007c613d90
[ 15.414020] Call Trace:
[ 15.414020] [<ffffffff8133930a>] ? __delay+0xa/0x10
[ 15.414020] [<ffffffff810930c7>] do_raw_spin_lock+0x87/0x150
[ 15.414020] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 15.414020] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 15.414020] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 15.414020] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 15.414020] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 15.414020] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 15.414020] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 15.414020] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 15.414020] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 15.414020] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] Code: c3 66 2e 0f 1f 84 00 00 00 00 00 55 41 89 d2 48 89 e5 e8 54 fe ff ff 5d 44 01 d0 83 d0 00 c3 90 90 90 90 90 90 90 90 90 90 90 90 <55> 48 89 f8 48 89 e5 48 85 c0 74 19 eb 02 66 90 eb 0e 0f 1f 40
[ 15.414020] NMI backtrace for cpu 7
[ 15.414020] CPU: 7 PID: 791 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] task: ffff88007c5fe400 ti: ffff88007c608000 task.ti: ffff88007c608000
[ 15.414020] RIP: 0010:[<ffffffff810930aa>] [<ffffffff810930aa>] do_raw_spin_lock+0x6a/0x150
[ 15.414020] RSP: 0018:ffff88007c60bd40 EFLAGS: 00000012
[ 15.414020] RAX: ffffffffffffffff RBX: ffff88007fbacc00 RCX: 0000000000000001
[ 15.414020] RDX: 0000000000000000 RSI: ffff88007c60bdd0 RDI: 0000000000000001
[ 15.414020] RBP: ffff88007c60bd60 R08: ffffffff81e496f8 R09: ffff88007fbacc00
[ 15.414020] R10: ffff88007c60be30 R11: 0000000000094c00 R12: 0000000056fb33d6
[ 15.414020] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007c60bdd0
[ 15.414020] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 15.414020] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.414020] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.414020] Stack:
[ 15.414020] 0000000000000286 ffff88007fbacc00 ffff88007fbacc00 000000000000cc00
[ 15.414020] ffff88007c60bd80 ffffffff818b401f 000000000000000d ffff88007c60be58
[ 15.414020] ffff88007c60bdb8 ffffffff810b8faf ffff88007c60be30 00000000fffb9c3c
[ 15.414020] Call Trace:
[ 15.414020] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 15.414020] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 15.414020] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 15.414020] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 15.414020] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.414020] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.414020] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] Code: 03 85 c0 75 0d ba 01 00 00 00 f0 0f b1 13 85 c0 74 67 4c 69 35 b4 0f d8 00 e8 03 00 00 45 31 e4 41 bd 01 00 00 00 4d 85 f6 74 22 <8b> 03 85 c0 75 09 f0 44 0f b1 2b 85 c0 74 3f bf 01 00 00 00 49
[ 15.414020] NMI backtrace for cpu 10
[ 15.414020] CPU: 10 PID: 785 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] task: ffff88007c5f9900 ti: ffff88007c510000 task.ti: ffff88007c510000
[ 15.414020] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
[ 15.414020] RSP: 0018:ffff88007c513df8 EFLAGS: 00000246
[ 15.414020] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 15.414020] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb
[ 15.414020] RBP: ffff88007c513e00 R08: ffff88007c510000 R09: ffff88007fb4cc00
[ 15.414020] R10: ffff88007c513e30 R11: 0000000000000001 R12: 0000000000000000
[ 15.414020] R13: 0000000392b16080 R14: 0000000000000072 R15: ffffffff820d6e80
[ 15.414020] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
[ 15.414020] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.414020] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.414020] Stack:
[ 15.414020] 0000000000000000 ffff88007c513ea8 ffffffff810ad3ce 0000000000000000
[ 15.414020] 0000000081a0a240 3d2f7d49a663713f 000000000000160d dead000000000200
[ 15.414020] 0000000000000000 00000000fffba813 ffffffff810ad590 0000000000000000
[ 15.414020] Call Trace:
[ 15.414020] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 15.414020] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.414020] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.414020] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
[ 15.414020] NMI backtrace for cpu 12
[ 15.414020] CPU: 12 PID: 0 Comm: swapper/12 Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] task: ffff88007cc9a580 ti: ffff88007ccac000 task.ti: ffff88007ccac000
[ 15.414020] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
[ 15.414020] RSP: 0018:ffff88007ccafec0 EFLAGS: 00000202
[ 15.414020] RAX: 000000000000000c RBX: ffff88007ccb0000 RCX: 0000000000000000
[ 15.414020] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 15.414020] RBP: ffff88007ccafed0 R08: 0000000000000000 R09: 0000000000000000
[ 15.414020] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 15.414020] R13: 0000000000000000 R14: ffff88007ccac000 R15: ffff88007ccac000
[ 15.414020] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 15.414020] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.414020] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.414020] Stack:
[ 15.414020] ffff88007ccb0000 0000000000000000 ffff88007ccafee0 ffffffff8100fafa
[ 15.414020] ffff88007ccafef0 ffffffff8108fd65 ffff88007ccaff30 ffffffff8108fff7
[ 15.414020] ffff88007ccb0000 000000000000000c 0000000000000000 0000000000000000
[ 15.414020] Call Trace:
[ 15.414020] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 15.414020] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 15.414020] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 15.414020] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 15.414020] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
[ 15.414020] NMI backtrace for cpu 15
[ 15.414020] CPU: 15 PID: 788 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.414020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.414020] task: ffff88007c5fbe80 ti: ffff88007c51c000 task.ti: ffff88007c51c000
[ 15.414020] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
[ 15.414020] RSP: 0018:ffff88007c51fdf0 EFLAGS: 00000202
[ 15.414020] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 15.414020] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 15.414020] RBP: ffff88007c51fe00 R08: ffff88007c51c000 R09: ffff88007fb8cc00
[ 15.414020] R10: ffff88007c51fe30 R11: 0000000000000001 R12: 0000000000000000
[ 15.414020] R13: 0000000392ee6980 R14: 0000000000000072 R15: ffffffff820d6e80
[ 15.414020] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 15.414020] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.414020] CR2: 00007fa3445ac000 CR3: 000000007b2ba000 CR4: 00000000000006e0
[ 15.414020] Stack:
[ 15.414020] ffffffff81126479 0000000000000000 ffff88007c51fea8 ffffffff810ad3ce
[ 15.414020] 0000000000000000 0000000081a0a240 036fde59d7641143 0000000000001385
[ 15.414020] dead000000000200 0000000000000000 00000000fffba817 ffffffff810ad590
[ 15.414020] Call Trace:
[ 15.414020] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 15.414020] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 15.414020] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.414020] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.414020] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.414020] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.414020] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
[ 16.616031] BUG: spinlock lockup suspected on CPU#1, torture_onoff/795
[ 16.616031] lock: 0xffff88007fa2cc00, .magic: dead4ead, .owner: torture_onoff/795, .owner_cpu: 1
[ 16.616031] CPU: 1 PID: 795 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] ffff88007fa2cc00 ffff88007fa23e50 ffffffff8132cd6c ffff88007c651900
[ 16.616031] ffff88007fa23e70 ffffffff81092fb3 ffff88007fa2cc00 0000000057288000
[ 16.616031] ffff88007fa23ea0 ffffffff810930db ffff88007fa2cc00 ffffffff81e080c8
[ 16.616031] Call Trace:
[ 16.616031] <IRQ> [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 16.616031] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 16.616031] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 16.616031] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 16.616031] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 16.616031] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 16.616031] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 16.616031] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 16.616031] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 16.616031] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 16.616031] <EOI> [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 16.616031] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 16.616031] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 16.616031] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 16.616031] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 16.616031] [<ffffffff8104a612>] no_context+0x102/0x330
[ 16.616031] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 16.616031] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 16.616031] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 16.616031] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 16.616031] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 16.616031] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 16.616031] [<ffffffff810b9483>] ? migrate_timer_list+0x63/0xc0
[ 16.616031] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 16.616031] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 16.616031] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 16.616031] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 16.616031] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 16.616031] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 16.616031] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 16.616031] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 16.616031] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 16.616031] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 16.616031] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 16.616031] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 16.616031] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] Sending NMI to all CPUs:
[ 16.616031] NMI backtrace for cpu 0
[ 16.616031] CPU: 0 PID: 779 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] task: ffff88007c644b00 ti: ffff88007cab0000 task.ti: ffff88007cab0000
[ 16.616031] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
[ 16.616031] RSP: 0018:ffff88007cab3df0 EFLAGS: 00000202
[ 16.616031] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 16.616031] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb
[ 16.616031] RBP: ffff88007cab3e00 R08: ffff88007cab0000 R09: ffff88007fa0cc00
[ 16.616031] R10: ffff88007cab3e30 R11: 0000000000000001 R12: 0000000000000000
[ 16.616031] R13: 0000000392ee6980 R14: 0000000000000072 R15: ffffffff820d6e80
[ 16.616031] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 16.616031] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 16.616031] CR2: 00007ffd0da7e3bc CR3: 0000000001e0f000 CR4: 00000000000006f0
[ 16.616031] Stack:
[ 16.616031] ffffffff81126479 0000000000000000 ffff88007cab3ea8 ffffffff810ad3ce
[ 16.616031] 0000000000000000 0000000081a0a240 e24ff85eb6c56d81 00000000000023ff
[ 16.616031] dead000000000200 0000000000000000 00000000fffba817 ffffffff810ad590
[ 16.616031] Call Trace:
[ 16.616031] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 16.616031] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 16.616031] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 16.616031] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 16.616031] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
[ 16.616031] NMI backtrace for cpu 1
[ 16.616031] CPU: 1 PID: 795 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] task: ffff88007c651900 ti: ffff88007c660000 task.ti: ffff88007c660000
[ 16.616031] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 16.616031] RSP: 0018:ffff88007fa23dd0 EFLAGS: 00000046
[ 16.616031] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000001
[ 16.616031] RDX: 0000000000000001 RSI: 0000000000000010 RDI: 0000000000000300
[ 16.616031] RBP: ffff88007fa23e08 R08: 0000000000000000 R09: 00000000000094db
[ 16.616031] R10: ffff88007c663f58 R11: 0000000000000362 R12: ffffffff81f31740
[ 16.616031] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000001
[ 16.616031] FS: 0000000000000000(0000) GS:ffff88007fa20000(0000) knlGS:0000000000000000
[ 16.616031] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 16.616031] CR2: 0000000000000000 CR3: 000000007b124000 CR4: 00000000000006e0
[ 16.616031] Stack:
[ 16.616031] 0000000000000082 000000017fa23de0 000000000000ff40 0000000000000001
[ 16.616031] ffffffff8103fd20 0000000057288000 0000000000000000 ffff88007fa23e18
[ 16.616031] ffffffff8103fd36 ffff88007fa23e60 ffffffff81331299 ffffffff81008b50
[ 16.616031] Call Trace:
[ 16.616031] <IRQ> \x01d [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 16.616031] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 16.616031] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 16.616031] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 16.616031] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 16.616031] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 16.616031] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 16.616031] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 16.616031] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 16.616031] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 16.616031] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 16.616031] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 16.616031] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 16.616031] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 16.616031] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 16.616031] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 16.616031] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 16.616031] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 16.616031] [<ffffffff8104a612>] no_context+0x102/0x330
[ 16.616031] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 16.616031] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 16.616031] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 16.616031] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 16.616031] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 16.616031] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 16.616031] [<ffffffff810b9483>] ? migrate_timer_list+0x63/0xc0
[ 16.616031] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 16.616031] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 16.616031] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 16.616031] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 16.616031] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 16.616031] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 16.616031] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 16.616031] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 16.616031] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 16.616031] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 16.616031] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 16.616031] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 16.616031] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 16.616031] NMI backtrace for cpu 3
[ 16.616031] CPU: 3 PID: 773 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] task: ffff88007c640000 ti: ffff88007c648000 task.ti: ffff88007c648000
[ 16.616031] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 16.616031] RSP: 0018:ffff88007c64bcf0 EFLAGS: 00000002
[ 16.616031] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
[ 16.616031] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 16.616031] RBP: ffff88007c64bd08 R08: 0000000000000716 R09: 0000000000000332
[ 16.616031] R10: ffff88007c64bf58 R11: 0000000000000332 R12: 0000000057288000
[ 16.616031] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007c64bda0
[ 16.616031] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
[ 16.616031] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 16.616031] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 16.616031] Stack:
[ 16.616031] ffff88007fa2cc00 0000000057288000 0000000000000001 ffff88007c64bd38
[ 16.616031] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
[ 16.616031] 000000000000cc00 ffff88007c64bd58 ffffffff818b401f 0000000000000001
[ 16.616031] Call Trace:
[ 16.616031] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 16.616031] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 16.616031] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 16.616031] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 16.616031] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 16.616031] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 16.616031] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 16.616031] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 16.616031] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 16.616031] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 16.616031] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 16.616031] NMI backtrace for cpu 4
[ 16.616031] CPU: 4 PID: 0 Comm: swapper/4 Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] task: ffff88007cc63e80 ti: ffff88007cc7c000 task.ti: ffff88007cc7c000
[ 16.616031] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
[ 16.616031] RSP: 0018:ffff88007cc7fec0 EFLAGS: 00000202
[ 16.616031] RAX: 0000000000000004 RBX: ffff88007cc80000 RCX: 0000000000000000
[ 16.616031] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 16.616031] RBP: ffff88007cc7fed0 R08: 0000000000000000 R09: 0000000000000000
[ 16.616031] R10: 0000000000000000 R11: 0000000000000002 R12: 0000000000000000
[ 16.616031] R13: 0000000000000000 R14: ffff88007cc7c000 R15: ffff88007cc7c000
[ 16.616031] FS: 0000000000000000(0000) GS:ffff88007fa80000(0000) knlGS:0000000000000000
[ 16.616031] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 16.616031] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 16.616031] Stack:
[ 16.616031] ffff88007cc80000 0000000000000000 ffff88007cc7fee0 ffffffff8100fafa
[ 16.616031] ffff88007cc7fef0 ffffffff8108fd65 ffff88007cc7ff30 ffffffff8108fff7
[ 16.616031] ffff88007cc80000 0000000000000004 0000000000000000 0000000000000000
[ 16.616031] Call Trace:
[ 16.616031] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 16.616031] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 16.616031] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 16.616031] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 16.616031] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
[ 16.616031] NMI backtrace for cpu 6
[ 16.616031] CPU: 6 PID: 775 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] task: ffff88007c641900 ti: ffff88007c610000 task.ti: ffff88007c610000
[ 16.616031] RIP: 0010:[<ffffffff81339300>] [<ffffffff81339300>] __delay+0x0/0x10
[ 16.616031] RSP: 0018:ffff88007c613d10 EFLAGS: 00000002
[ 16.616031] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
[ 16.616031] RDX: 0000000000000000 RSI: ffff88007c613da0 RDI: 0000000000000001
[ 16.616031] RBP: ffff88007c613d38 R08: ffff88007c610000 R09: 0000000000000002
[ 16.616031] R10: 0000000000000000 R11: 0000000000000b6e R12: 0000000030beeb3b
[ 16.616031] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007c613da0
[ 16.616031] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
[ 16.616031] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 16.616031] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 16.616031] Stack:
[ 16.616031] ffffffff810930c7 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
[ 16.616031] 000000000000cc00 ffff88007c613d58 ffffffff818b401f 0000000000000001
[ 16.616031] ffff88007c613e18 ffff88007c613d90 ffffffff810b8faf ffff88007c613df0
[ 16.616031] Call Trace:
[ 16.616031] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
[ 16.616031] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 16.616031] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 16.616031] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 16.616031] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 16.616031] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 16.616031] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 16.616031] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 16.616031] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 16.616031] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 16.616031] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] Code: 89 e5 48 85 c0 74 19 eb 02 66 90 eb 0e 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 48 ff c8 75 fb 48 ff c8 5d c3 66 0f 1f 44 00 00 <55> 48 89 e5 ff 15 2e 2b b6 00 5d c3 0f 1f 40 00 55 48 8d 04 bd
[ 16.616031] NMI backtrace for cpu 7
[ 16.616031] CPU: 7 PID: 791 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] task: ffff88007c5fe400 ti: ffff88007c608000 task.ti: ffff88007c608000
[ 16.616031] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 16.616031] RSP: 0018:ffff88007c60bd18 EFLAGS: 00000002
[ 16.616031] RAX: 0000000000000101 RBX: ffff88007fbacc00 RCX: 0000000000000001
[ 16.616031] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 16.616031] RBP: ffff88007c60bd30 R08: 0000000000000000 R09: 0000000000000035
[ 16.616031] R10: ffff88007c60bf58 R11: 0000000000036a30 R12: 0000000057288000
[ 16.616031] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007c60bdd0
[ 16.616031] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 16.616031] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 16.616031] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 16.616031] Stack:
[ 16.616031] ffff88007fbacc00 0000000057288000 0000000000000001 ffff88007c60bd60
[ 16.616031] ffffffff81093185 0000000000000286 ffff88007fbacc00 ffff88007fbacc00
[ 16.616031] 000000000000cc00 ffff88007c60bd80 ffffffff818b401f 000000000000000d
[ 16.616031] Call Trace:
[ 16.616031] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 16.616031] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 16.616031] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 16.616031] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 16.616031] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 16.616031] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 16.616031] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 16.616031] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 16.616031] NMI backtrace for cpu 10
[ 16.616031] CPU: 10 PID: 785 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] task: ffff88007c5f9900 ti: ffff88007c510000 task.ti: ffff88007c510000
[ 16.616031] RIP: 0010:[<ffffffff818af94b>] [<ffffffff818af94b>] _cond_resched+0xb/0x20
[ 16.616031] RSP: 0018:ffff88007c513df0 EFLAGS: 00000286
[ 16.616031] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 16.616031] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb
[ 16.616031] RBP: ffff88007c513e00 R08: ffff88007c510000 R09: ffff88007fb4cc00
[ 16.616031] R10: ffff88007c513e30 R11: 0000000000000001 R12: 0000000000000000
[ 16.616031] R13: 0000000392b16080 R14: 0000000000000072 R15: ffffffff820d6e80
[ 16.616031] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
[ 16.616031] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 16.616031] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 16.616031] Stack:
[ 16.616031] ffffffff81126479 0000000000000000 ffff88007c513ea8 ffffffff810ad3ce
[ 16.616031] 0000000000000000 0000000081a0a240 3d2f7d49a663713f 000000000000160d
[ 16.616031] dead000000000200 0000000000000000 00000000fffba813 ffffffff810ad590
[ 16.616031] Call Trace:
[ 16.616031] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 16.616031] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 16.616031] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 16.616031] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 16.616031] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] Code: 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 65 8b 15 49 b4 75 7e 85 d2 74 03 <31> c0 c3 55 48 89 e5 e8 79 ff ff ff b8 01 00 00 00 5d c3 66 90
[ 16.616031] NMI backtrace for cpu 12
[ 16.616031] CPU: 12 PID: 0 Comm: swapper/12 Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] task: ffff88007cc9a580 ti: ffff88007ccac000 task.ti: ffff88007ccac000
[ 16.616031] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
[ 16.616031] RSP: 0018:ffff88007ccafec0 EFLAGS: 00000202
[ 16.616031] RAX: 000000000000000c RBX: ffff88007ccb0000 RCX: 0000000000000000
[ 16.616031] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 16.616031] RBP: ffff88007ccafed0 R08: 0000000000000000 R09: 0000000000000000
[ 16.616031] R10: 0000000000000400 R11: 0000000000000002 R12: 0000000000000000
[ 16.616031] R13: 0000000000000000 R14: ffff88007ccac000 R15: ffff88007ccac000
[ 16.616031] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 16.616031] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 16.616031] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 16.616031] Stack:
[ 16.616031] ffff88007ccb0000 0000000000000000 ffff88007ccafee0 ffffffff8100fafa
[ 16.616031] ffff88007ccafef0 ffffffff8108fd65 ffff88007ccaff30 ffffffff8108fff7
[ 16.616031] ffff88007ccb0000 000000000000000c 0000000000000000 0000000000000000
[ 16.616031] Call Trace:
[ 16.616031] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 16.616031] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 16.616031] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 16.616031] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 16.616031] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
[ 16.616031] NMI backtrace for cpu 15
[ 16.616031] CPU: 15 PID: 788 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 16.616031] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 16.616031] task: ffff88007c5fbe80 ti: ffff88007c51c000 task.ti: ffff88007c51c000
[ 16.616031] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
[ 16.616031] RSP: 0018:ffff88007c51fdf8 EFLAGS: 00000246
[ 16.616031] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 16.616031] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 16.616031] RBP: ffff88007c51fe00 R08: ffff88007c51c000 R09: ffff88007fb8cc00
[ 16.616031] R10: ffff88007c51fe30 R11: 0000000000000001 R12: 0000000000000000
[ 16.616031] R13: 0000000392ee6980 R14: 0000000000000072 R15: ffffffff820d6e80
[ 16.616031] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 16.616031] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 16.616031] CR2: 00007fa3445ac000 CR3: 000000007b2ba000 CR4: 00000000000006e0
[ 16.616031] Stack:
[ 16.616031] 0000000000000000 ffff88007c51fea8 ffffffff810ad3ce 0000000000000000
[ 16.616031] 0000000081a0a240 036fde59d7641143 0000000000001385 dead000000000200
[ 16.616031] 0000000000000000 00000000fffba817 ffffffff810ad590 0000000000000000
[ 16.616031] Call Trace:
[ 16.616031] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 16.616031] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 16.616031] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 16.616031] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 16.616031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 16.616031] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
[ 15.356027] BUG: spinlock lockup suspected on CPU#6, rcu_torture_fak/775
[ 15.356027] lock: 0xffff88007fa2cc00, .magic: dead4ead, .owner: torture_onoff/795, .owner_cpu: 1
[ 15.356027] CPU: 6 PID: 775 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] ffff88007fa2cc00 ffff88007c613ce8 ffffffff8132cd6c ffff88007c651900
[ 15.356027] ffff88007c613d08 ffffffff81092fb3 ffff88007fa2cc00 0000000057288000
[ 15.356027] ffff88007c613d38 ffffffff810930db 0000000000000286 ffff88007fa2cc00
[ 15.356027] Call Trace:
[ 15.356027] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 15.356027] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 15.356027] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 15.356027] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 15.356027] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 15.356027] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 15.356027] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 15.356027] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 15.356027] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 15.356027] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 15.356027] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 15.356027] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Sending NMI to all CPUs:
[ 15.356027] NMI backtrace for cpu 0
[ 15.356027] CPU: 0 PID: 779 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] task: ffff88007c644b00 ti: ffff88007cab0000 task.ti: ffff88007cab0000
[ 15.356027] RIP: 0010:[<ffffffff81045ea1>] [<ffffffff81045ea1>] read_hpet+0x11/0x20
[ 15.356027] RSP: 0018:ffff88007fa03ee0 EFLAGS: 00000046
[ 15.356027] RAX: 000000008e223293 RBX: 000000055ae82600 RCX: ffff88007fa0dde8
[ 15.356027] RDX: ffff88007fa0dda8 RSI: ffff88007fa0dd68 RDI: ffffffff81e2b020
[ 15.356027] RBP: ffff88007fa03ee0 R08: ffff88007cab0000 R09: ffff88007fa0cc00
[ 15.356027] R10: ffff88007cab3e30 R11: 0000000000000001 R12: 0000000000000000
[ 15.356027] R13: ffff88007fa0dd68 R14: ffff88007fa0dcb0 R15: 000000000000b436
[ 15.356027] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 15.356027] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.356027] CR2: 00007ffd0da7e3bc CR3: 0000000001e0f000 CR4: 00000000000006f0
[ 15.356027] Stack:
[ 15.356027] ffff88007fa03f28 ffffffff810c1ca7 ffff88007fa0dde8 ffff88007fa0dda8
[ 15.356027] 0000000000000003 ffff88007fa0dcb0 ffff88007fa0dc80 ffff88007fa0dda8
[ 15.356027] ffff88007fa0dde8 ffff88007fa03f78 ffffffff810bb925 0000000000000072
[ 15.356027] Call Trace:
[ 15.356027] <IRQ> \x01d [<ffffffff810c1ca7>] ktime_get_update_offsets_now+0x47/0x100
[ 15.356027] [<ffffffff810bb925>] hrtimer_interrupt+0x85/0x1a0
[ 15.356027] [<ffffffff8103d381>] local_apic_timer_interrupt+0x31/0x50
[ 15.356027] [<ffffffff8103de58>] smp_apic_timer_interrupt+0x38/0x50
[ 15.356027] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 15.356027] <EOI> \x01d [<ffffffff813392f3>] ? delay_loop+0x23/0x30
[ 15.356027] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 15.356027] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 15.356027] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 15.356027] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.356027] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Code: 00 29 c7 ba 00 00 00 00 b8 c2 ff ff ff 83 c7 80 0f 4d c2 5d c3 0f 1f 44 00 00 55 48 8b 05 40 7c 04 01 48 89 e5 8b 80 f0 00 00 00 <89> c0 5d c3 90 66 2e 0f 1f 84 00 00 00 00 00 80 3d 8a 7b 04 01
[ 15.356027] NMI backtrace for cpu 1
[ 15.356027] CPU: 1 PID: 795 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] task: ffff88007c651900 ti: ffff88007c660000 task.ti: ffff88007c660000
[ 15.356027] RIP: 0010:[<ffffffff81092067>] [<ffffffff81092067>] queued_spin_lock_slowpath+0x127/0x1a0
[ 15.356027] RSP: 0018:ffff88007fa23e58 EFLAGS: 00000002
[ 15.356027] RAX: 0000000000000000 RBX: ffff88007fa2cc00 RCX: ffff88007fa35e80
[ 15.356027] RDX: 0000000000080101 RSI: ffffffff81ca0d44 RDI: 0000000000080000
[ 15.356027] RBP: ffff88007fa23e70 R08: 0000000000000000 R09: 0000000000000486
[ 15.356027] R10: ffff88007c663f58 R11: 0000000000000486 R12: 0000000000000000
[ 15.356027] R13: ffff88007fa35e80 R14: 0000000057288000 R15: 0000000000000000
[ 15.356027] FS: 0000000000000000(0000) GS:ffff88007fa20000(0000) knlGS:0000000000000000
[ 15.356027] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.356027] CR2: 0000000000000000 CR3: 000000007b124000 CR4: 00000000000006e0
[ 15.356027] Stack:
[ 15.356027] ffff88007fa2cc00 0000000057288000 0000000000000001 ffff88007fa23ea0
[ 15.356027] ffffffff81093185 ffff88007fa2cc00 ffffffff81e080c8 0000000000000001
[ 15.356027] 0000000000000001 ffff88007fa23eb8 ffffffff818b3ffb ffff88007fa2cc00
[ 15.356027] Call Trace:
[ 15.356027] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 15.356027] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 15.356027] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 15.356027] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 15.356027] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 15.356027] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 15.356027] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 15.356027] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 15.356027] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 15.356027] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 15.356027] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 15.356027] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 15.356027] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 15.356027] [<ffffffff8104a612>] no_context+0x102/0x330
[ 15.356027] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 15.356027] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 15.356027] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 15.356027] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 15.356027] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 15.356027] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 15.356027] [<ffffffff810b9483>] ? migrate_timer_list+0x63/0xc0
[ 15.356027] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 15.356027] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 15.356027] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 15.356027] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 15.356027] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 15.356027] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 15.356027] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 15.356027] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 15.356027] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 15.356027] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 15.356027] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 15.356027] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Code: 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 <8b> 13 66 85 d2 75 f7 be 01 00 00 00 eb 10 89 d0 f0 0f b1 33 39
[ 15.356027] NMI backtrace for cpu 3
[ 15.356027] CPU: 3 PID: 773 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] task: ffff88007c640000 ti: ffff88007c648000 task.ti: ffff88007c648000
[ 15.356027] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 15.356027] RSP: 0018:ffff88007c64bcf0 EFLAGS: 00000002
[ 15.356027] RAX: 0000000000080101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
[ 15.356027] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 15.356027] RBP: ffff88007c64bd08 R08: 0000000000000716 R09: 0000000000000332
[ 15.356027] R10: ffff88007c64bf58 R11: 0000000000000332 R12: 0000000057288000
[ 15.356027] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007c64bda0
[ 15.356027] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
[ 15.356027] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.356027] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.356027] Stack:
[ 15.356027] ffff88007fa2cc00 0000000057288000 0000000000000001 ffff88007c64bd38
[ 15.356027] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
[ 15.356027] 000000000000cc00 ffff88007c64bd58 ffffffff818b401f 0000000000000001
[ 15.356027] Call Trace:
[ 15.356027] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 15.356027] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 15.356027] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 15.356027] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 15.356027] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 15.356027] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 15.356027] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 15.356027] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 15.356027] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 15.356027] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 15.356027] NMI backtrace for cpu 4
[ 15.356027] CPU: 4 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] task: ffff88007c5fb200 ti: ffff88007c518000 task.ti: ffff88007c518000
[ 15.356027] RIP: 0010:[<ffffffff81045ea1>] [<ffffffff81045ea1>] read_hpet+0x11/0x20
[ 15.356027] RSP: 0018:ffff88007fa83e08 EFLAGS: 00000046
[ 15.356027] RAX: 000000008e223898 RBX: 000000055ae82600 RCX: 0000000000000009
[ 15.356027] RDX: fffffffffffffeea RSI: ffffffff81ca0d44 RDI: ffffffff81e2b020
[ 15.356027] RBP: ffff88007fa83e08 R08: 0000000000000000 R09: ffff88007fa8cc00
[ 15.356027] R10: ffff88007c51be30 R11: 0000000000000002 R12: 0000000000000000
[ 15.356027] R13: 000000000000b436 R14: ffff88007c5fb200 R15: ffff88007fa8dde8
[ 15.356027] FS: 0000000000000000(0000) GS:ffff88007fa80000(0000) knlGS:0000000000000000
[ 15.356027] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.356027] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.356027] Stack:
[ 15.356027] ffff88007fa83e30 ffffffff810c09f7 ffff88007fa95e00 0000000000015380
[ 15.356027] 0000000000000004 ffff88007fa83e50 ffffffff810817d8 ffff88007fa95380
[ 15.356027] 0000000000015380 ffff88007fa83e80 ffffffff8107dba1 ffff88007c5fb200
[ 15.356027] Call Trace:
[ 15.356027] <IRQ> \x01d [<ffffffff810c09f7>] ktime_get+0x37/0xa0
[ 15.356027] [<ffffffff810817d8>] sched_clock_tick+0x38/0x80
[ 15.356027] [<ffffffff8107dba1>] scheduler_tick+0x31/0xd0
[ 15.356027] [<ffffffff810c8c30>] ? tick_init_highres+0x20/0x20
[ 15.356027] [<ffffffff810baaec>] update_process_times+0x4c/0x60
[ 15.356027] [<ffffffff810c8c78>] tick_sched_timer+0x48/0x180
[ 15.356027] [<ffffffff810bb048>] ? __remove_hrtimer+0x38/0x90
[ 15.356027] [<ffffffff810c8c30>] ? tick_init_highres+0x20/0x20
[ 15.356027] [<ffffffff810bb2f4>] __hrtimer_run_queues+0xa4/0x240
[ 15.356027] [<ffffffff810bb947>] hrtimer_interrupt+0xa7/0x1a0
[ 15.356027] [<ffffffff8103d381>] local_apic_timer_interrupt+0x31/0x50
[ 15.356027] [<ffffffff8103de58>] smp_apic_timer_interrupt+0x38/0x50
[ 15.356027] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 15.356027] <EOI> \x01d [<ffffffff813392f3>] ? delay_loop+0x23/0x30
[ 15.356027] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 15.356027] [<ffffffff810addf7>] rcu_read_delay+0xa7/0xb0
[ 15.356027] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 15.356027] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.356027] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Code: 00 29 c7 ba 00 00 00 00 b8 c2 ff ff ff 83 c7 80 0f 4d c2 5d c3 0f 1f 44 00 00 55 48 8b 05 40 7c 04 01 48 89 e5 8b 80 f0 00 00 00 <89> c0 5d c3 90 66 2e 0f 1f 84 00 00 00 00 00 80 3d 8a 7b 04 01
[ 15.356027] NMI backtrace for cpu 6
[ 15.356027] CPU: 6 PID: 775 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] task: ffff88007c641900 ti: ffff88007c610000 task.ti: ffff88007c610000
[ 15.356027] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 15.356027] RSP: 0018:ffff88007c613c68 EFLAGS: 00000046
[ 15.356027] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000006
[ 15.356027] RDX: 0000000000000006 RSI: 0000000000000010 RDI: 0000000000000300
[ 15.356027] RBP: ffff88007c613ca0 R08: 0000000000000000 R09: 00000000000094db
[ 15.356027] R10: ffff88007c613f58 R11: 000000000000049f R12: ffffffff81f31740
[ 15.356027] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000006
[ 15.356027] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
[ 15.356027] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.356027] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.356027] Stack:
[ 15.356027] 0000000000000082 000000067c613c78 000000000000ff40 0000000000000001
[ 15.356027] ffffffff8103fd20 0000000057288000 ffff88007c613da0 ffff88007c613cb0
[ 15.356027] ffffffff8103fd36 ffff88007c613cf8 ffffffff81331299 ffffffff81008b50
[ 15.356027] Call Trace:
[ 15.356027] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 15.356027] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 15.356027] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 15.356027] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 15.356027] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 15.356027] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 15.356027] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 15.356027] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 15.356027] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 15.356027] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 15.356027] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 15.356027] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 15.356027] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 15.356027] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 15.356027] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 15.356027] NMI backtrace for cpu 7
[ 15.356027] CPU: 7 PID: 791 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] task: ffff88007c5fe400 ti: ffff88007c608000 task.ti: ffff88007c608000
[ 15.356027] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 15.356027] RSP: 0018:ffff88007c60bd18 EFLAGS: 00000002
[ 15.356027] RAX: 0000000000000101 RBX: ffff88007fbacc00 RCX: 0000000000000001
[ 15.356027] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 15.356027] RBP: ffff88007c60bd30 R08: 0000000000000000 R09: 0000000000000035
[ 15.356027] R10: ffff88007c60bf58 R11: 0000000000036a30 R12: 0000000057288000
[ 15.356027] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007c60bdd0
[ 15.356027] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 15.356027] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.356027] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.356027] Stack:
[ 15.356027] ffff88007fbacc00 0000000057288000 0000000000000001 ffff88007c60bd60
[ 15.356027] ffffffff81093185 0000000000000286 ffff88007fbacc00 ffff88007fbacc00
[ 15.356027] 000000000000cc00 ffff88007c60bd80 ffffffff818b401f 000000000000000d
[ 15.356027] Call Trace:
[ 15.356027] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 15.356027] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 15.356027] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 15.356027] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 15.356027] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 15.356027] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.356027] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 15.356027] NMI backtrace for cpu 10
[ 15.356027] CPU: 10 PID: 785 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] task: ffff88007c5f9900 ti: ffff88007c510000 task.ti: ffff88007c510000
[ 15.356027] RIP: 0010:[<ffffffff813392f3>] [<ffffffff813392f3>] delay_loop+0x23/0x30
[ 15.356027] RSP: 0018:ffff88007c513dd0 EFLAGS: 00000202
[ 15.356027] RAX: 00000000000aabe3 RBX: 000000000000000a RCX: 000000000016e360
[ 15.356027] RDX: 00000000001a400d RSI: 0000000000000001 RDI: 00000000001a400e
[ 15.356027] RBP: ffff88007c513dd0 R08: ffff88007c510000 R09: ffff88007fb4cc00
[ 15.356027] R10: ffff88007c513e30 R11: 0000000000000001 R12: ffff88007c513e20
[ 15.356027] R13: 0000000576256a40 R14: 0000000000000072 R15: ffffffff820d6e80
[ 15.356027] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
[ 15.356027] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.356027] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.356027] Stack:
[ 15.356027] ffff88007c513de0 ffffffff81339337 ffff88007c513e00 ffffffff810add86
[ 15.356027] 0000000000000000 0000000000000000 ffff88007c513ea8 ffffffff810ad458
[ 15.356027] 0000000000000000 0000000081a0a240 c75394843da0522a 000000000000075f
[ 15.356027] Call Trace:
[ 15.356027] [<ffffffff81339337>] __const_udelay+0x27/0x30
[ 15.356027] [<ffffffff810add86>] rcu_read_delay+0x36/0xb0
[ 15.356027] [<ffffffff810ad458>] rcu_torture_reader+0x1a8/0x2e0
[ 15.356027] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.356027] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Code: 90 90 90 90 90 90 90 90 55 48 89 f8 48 89 e5 48 85 c0 74 19 eb 02 66 90 eb 0e 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 48 ff c8 <75> fb 48 ff c8 5d c3 66 0f 1f 44 00 00 55 48 89 e5 ff 15 2e 2b
[ 15.356027] NMI backtrace for cpu 12
[ 15.356027] CPU: 12 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] task: ffff88007c647080 ti: ffff88007caac000 task.ti: ffff88007caac000
[ 15.356027] RIP: 0010:[<ffffffff81339300>] [<ffffffff81339300>] __delay+0x0/0x10
[ 15.356027] RSP: 0018:ffff88007caafd38 EFLAGS: 00000012
[ 15.356027] RAX: 0000000000080101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
[ 15.356027] RDX: 0000000000000000 RSI: ffff88007caafdd0 RDI: 0000000000000001
[ 15.356027] RBP: ffff88007caafd60 R08: ffff88007caac000 R09: 0000000000000002
[ 15.356027] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000020216720
[ 15.356027] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007caafdd0
[ 15.356027] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 15.356027] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.356027] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 15.356027] Stack:
[ 15.356027] ffffffff810930c7 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
[ 15.356027] 000000000000cc00 ffff88007caafd80 ffffffff818b401f 0000000000000001
[ 15.356027] ffff88007caafe58 ffff88007caafdb8 ffffffff810b8faf ffff88007caafe30
[ 15.356027] Call Trace:
[ 15.356027] [<ffffffff810930c7>] ? do_raw_spin_lock+0x87/0x150
[ 15.356027] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 15.356027] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 15.356027] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 15.356027] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 15.356027] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.356027] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Code: 89 e5 48 85 c0 74 19 eb 02 66 90 eb 0e 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 48 ff c8 75 fb 48 ff c8 5d c3 66 0f 1f 44 00 00 <55> 48 89 e5 ff 15 2e 2b b6 00 5d c3 0f 1f 40 00 55 48 8d 04 bd
[ 15.356027] NMI backtrace for cpu 15
[ 15.356027] CPU: 15 PID: 788 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 15.356027] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 15.356027] task: ffff88007c5fbe80 ti: ffff88007c51c000 task.ti: ffff88007c51c000
[ 15.356027] RIP: 0010:[<ffffffff811264c0>] [<ffffffff811264c0>] stutter_wait+0x90/0xc0
[ 15.356027] RSP: 0018:ffff88007c51fdf8 EFLAGS: 00000246
[ 15.356027] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 15.356027] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 15.356027] RBP: ffff88007c51fe00 R08: ffff88007c51c000 R09: ffff88007fbecc00
[ 15.356027] R10: ffff88007c51fe30 R11: 0000000000000001 R12: 0000000000000000
[ 15.356027] R13: 000000057adadc00 R14: 0000000000000072 R15: ffffffff820d6e80
[ 15.356027] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 15.356027] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 15.356027] CR2: 00007fa3445ac000 CR3: 000000007b2ba000 CR4: 00000000000006e0
[ 15.356027] Stack:
[ 15.356027] 0000000000000000 ffff88007c51fea8 ffffffff810ad3ce 0000000000000000
[ 15.356027] 0000000081a0a240 4e041f0d301dbec3 000000000000199d 0000000000000000
[ 15.356027] ffff88007fbeccc8 00000000fffbc810 ffffffff810ad590 0000000000000000
[ 15.356027] Call Trace:
[ 15.356027] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 15.356027] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 15.356027] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 15.356027] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 15.356027] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 15.356027] Code: f9 ff 48 89 c7 e8 61 d2 78 00 48 89 df e8 49 ff ff ff eb 98 bf 01 00 00 00 e8 4d d2 78 00 48 89 df e8 35 ff ff ff eb 84 5b 5d c3 <e8> fb 91 f8 ff 65 48 8b 04 25 00 ae 00 00 0f b6 90 78 03 00 00
[ 20.359026] BUG: spinlock lockup suspected on CPU#12, rcu_torture_rea/782
[ 20.359026] lock: 0xffff88007fa2cc00, .magic: dead4ead, .owner: torture_onoff/795, .owner_cpu: 1
[ 20.359026] CPU: 12 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] ffff88007fa2cc00 ffff88007caafd10 ffffffff8132cd6c ffff88007c651900
[ 20.359026] ffff88007caafd30 ffffffff81092fb3 ffff88007fa2cc00 0000000057288000
[ 20.359026] ffff88007caafd60 ffffffff810930db 0000000000000286 ffff88007fa2cc00
[ 20.359026] Call Trace:
[ 20.359026] [<ffffffff8132cd6c>] dump_stack+0x4e/0x82
[ 20.359026] [<ffffffff81092fb3>] spin_dump+0x73/0xc0
[ 20.359026] [<ffffffff810930db>] do_raw_spin_lock+0x9b/0x150
[ 20.359026] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 20.359026] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 20.359026] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 20.359026] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 20.359026] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 20.359026] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 20.359026] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] Sending NMI to all CPUs:
[ 20.359026] NMI backtrace for cpu 0
[ 20.359026] CPU: 0 PID: 779 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] task: ffff88007c644b00 ti: ffff88007cab0000 task.ti: ffff88007cab0000
[ 20.359026] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
[ 20.359026] RSP: 0018:ffff88007cab3df0 EFLAGS: 00000202
[ 20.359026] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 20.359026] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb
[ 20.359026] RBP: ffff88007cab3e00 R08: ffff88007cab0000 R09: ffff88007fa0cc00
[ 20.359026] R10: ffff88007cab3e30 R11: 0000000000000001 R12: 0000000000000000
[ 20.359026] R13: 00000005e6fa4d80 R14: 0000000000000072 R15: ffffffff820d6e80
[ 20.359026] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000
[ 20.359026] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 20.359026] CR2: 00007ffd0da7e3bc CR3: 0000000001e0f000 CR4: 00000000000006f0
[ 20.359026] Stack:
[ 20.359026] ffffffff81126479 0000000000000000 ffff88007cab3ea8 ffffffff810ad3ce
[ 20.359026] 0000000000000000 0000000081a0a240 97391fc755e3bf03 00000000000009c9
[ 20.359026] dead000000000200 0000000000000000 00000000fffbcf27 ffffffff810ad590
[ 20.359026] Call Trace:
[ 20.359026] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 20.359026] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 20.359026] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 20.359026] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 20.359026] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
[ 20.359026] NMI backtrace for cpu 1
[ 20.359026] CPU: 1 PID: 795 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] task: ffff88007c651900 ti: ffff88007c660000 task.ti: ffff88007c660000
[ 20.359026] RIP: 0010:[<ffffffff81092067>] [<ffffffff81092067>] queued_spin_lock_slowpath+0x127/0x1a0
[ 20.359026] RSP: 0018:ffff88007fa23e58 EFLAGS: 00000002
[ 20.359026] RAX: 0000000000000000 RBX: ffff88007fa2cc00 RCX: ffff88007fa35e80
[ 20.359026] RDX: 00000000001c0101 RSI: ffffffff81ca0d44 RDI: 0000000000080000
[ 20.359026] RBP: ffff88007fa23e70 R08: 0000000000000000 R09: 0000000000000486
[ 20.359026] R10: ffff88007c663f58 R11: 0000000000000486 R12: 0000000000000000
[ 20.359026] R13: ffff88007fa35e80 R14: 0000000057288000 R15: 0000000000000000
[ 20.359026] FS: 0000000000000000(0000) GS:ffff88007fa20000(0000) knlGS:0000000000000000
[ 20.359026] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 20.359026] CR2: 0000000000000000 CR3: 000000007b124000 CR4: 00000000000006e0
[ 20.359026] Stack:
[ 20.359026] ffff88007fa2cc00 0000000057288000 0000000000000001 ffff88007fa23ea0
[ 20.359026] ffffffff81093185 ffff88007fa2cc00 ffffffff81e080c8 0000000000000001
[ 20.359026] 0000000000000001 ffff88007fa23eb8 ffffffff818b3ffb ffff88007fa2cc00
[ 20.359026] Call Trace:
[ 20.359026] <IRQ> \x01d [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 20.359026] [<ffffffff818b3ffb>] _raw_spin_lock_irq+0x1b/0x20
[ 20.359026] [<ffffffff810b91b0>] run_timer_softirq+0x40/0x2b0
[ 20.359026] [<ffffffff810c6ddd>] ? clockevents_program_event+0x7d/0x120
[ 20.359026] [<ffffffff8105b613>] __do_softirq+0xd3/0x280
[ 20.359026] [<ffffffff8105b8d2>] irq_exit+0x42/0x50
[ 20.359026] [<ffffffff8103de5d>] smp_apic_timer_interrupt+0x3d/0x50
[ 20.359026] [<ffffffff818b538f>] apic_timer_interrupt+0x7f/0x90
[ 20.359026] <EOI> \x01d [<ffffffff818b414f>] ? _raw_spin_unlock_irq+0xf/0x30
[ 20.359026] [<ffffffff818b4149>] ? _raw_spin_unlock_irq+0x9/0x30
[ 20.359026] [<ffffffff810d4da6>] acct_collect+0x166/0x1a0
[ 20.359026] [<ffffffff81058cd9>] do_exit+0x4f9/0xc00
[ 20.359026] [<ffffffff810087e4>] oops_end+0x84/0xb0
[ 20.359026] [<ffffffff8104a612>] no_context+0x102/0x330
[ 20.359026] [<ffffffff8104a8b5>] __bad_area_nosemaphore+0x75/0x1f0
[ 20.359026] [<ffffffff8104aa3e>] bad_area_nosemaphore+0xe/0x10
[ 20.359026] [<ffffffff8104ac95>] __do_page_fault+0x85/0x450
[ 20.359026] [<ffffffff8104b06c>] do_page_fault+0xc/0x10
[ 20.359026] [<ffffffff818b6422>] page_fault+0x22/0x30
[ 20.359026] [<ffffffff810b9452>] ? migrate_timer_list+0x32/0xc0
[ 20.359026] [<ffffffff810b9483>] ? migrate_timer_list+0x63/0xc0
[ 20.359026] [<ffffffff810b95c4>] timer_cpu_notify+0xe4/0x160
[ 20.359026] [<ffffffff81073ea5>] notifier_call_chain+0x45/0x70
[ 20.359026] [<ffffffff81073fc9>] __raw_notifier_call_chain+0x9/0x10
[ 20.359026] [<ffffffff8105759e>] cpu_notify_nofail+0x1e/0x30
[ 20.359026] [<ffffffff81057852>] _cpu_down+0x212/0x350
[ 20.359026] [<ffffffff810b3350>] ? __call_rcu.constprop.74+0x380/0x380
[ 20.359026] [<ffffffff810b33b0>] ? call_rcu_bh+0x20/0x20
[ 20.359026] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 20.359026] [<ffffffff810a8950>] ? __rcu_read_unlock+0x50/0x50
[ 20.359026] [<ffffffff810579bf>] cpu_down+0x2f/0x50
[ 20.359026] [<ffffffff811266b5>] torture_onoff+0x115/0x380
[ 20.359026] [<ffffffff811265a0>] ? torture_kthread_stopping+0x70/0x70
[ 20.359026] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] Code: 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 <8b> 13 66 85 d2 75 f7 be 01 00 00 00 eb 10 89 d0 f0 0f b1 33 39
[ 20.359026] NMI backtrace for cpu 3
[ 20.359026] CPU: 3 PID: 773 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] task: ffff88007c640000 ti: ffff88007c648000 task.ti: ffff88007c648000
[ 20.359026] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 20.359026] RSP: 0018:ffff88007c64bcf0 EFLAGS: 00000002
[ 20.359026] RAX: 00000000001c0101 RBX: ffff88007fa2cc00 RCX: 0000000000000001
[ 20.359026] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 20.359026] RBP: ffff88007c64bd08 R08: 0000000000000716 R09: 0000000000000332
[ 20.359026] R10: ffff88007c64bf58 R11: 0000000000000332 R12: 0000000057288000
[ 20.359026] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007c64bda0
[ 20.359026] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000
[ 20.359026] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 20.359026] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 20.359026] Stack:
[ 20.359026] ffff88007fa2cc00 0000000057288000 0000000000000001 ffff88007c64bd38
[ 20.359026] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
[ 20.359026] 000000000000cc00 ffff88007c64bd58 ffffffff818b401f 0000000000000001
[ 20.359026] Call Trace:
[ 20.359026] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 20.359026] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 20.359026] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 20.359026] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 20.359026] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 20.359026] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 20.359026] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 20.359026] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 20.359026] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 20.359026] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 20.359026] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 20.359026] NMI backtrace for cpu 4
[ 20.359026] CPU: 4 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] task: ffff88007c5fb200 ti: ffff88007c518000 task.ti: ffff88007c518000
[ 20.359026] RIP: 0010:[<ffffffff818af940>] [<ffffffff818af940>] _cond_resched+0x0/0x20
[ 20.359026] RSP: 0018:ffff88007c51bdf0 EFLAGS: 00000202
[ 20.359026] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 20.359026] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 20.359026] RBP: ffff88007c51be00 R08: ffff88007c518000 R09: ffff88007fa8cc00
[ 20.359026] R10: ffff88007c51be30 R11: 0000000000000002 R12: 0000000000000000
[ 20.359026] R13: 00000005e6fa4d80 R14: 0000000000000072 R15: ffffffff820d6e80
[ 20.359026] FS: 0000000000000000(0000) GS:ffff88007fa80000(0000) knlGS:0000000000000000
[ 20.359026] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 20.359026] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 20.359026] Stack:
[ 20.359026] ffffffff81126479 0000000000000000 ffff88007c51bea8 ffffffff810ad3ce
[ 20.359026] 0000000000000000 0000000081a0a240 3d1b1282eec7091b 0000000000001c8e
[ 20.359026] dead000000000200 0000000000000000 00000000fffbcf27 ffffffff810ad590
[ 20.359026] Call Trace:
[ 20.359026] [<ffffffff81126479>] ? stutter_wait+0x49/0xc0
[ 20.359026] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 20.359026] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 20.359026] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 20.359026] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff
[ 20.359026] NMI backtrace for cpu 6
[ 20.359026] CPU: 6 PID: 775 Comm: rcu_torture_fak Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] task: ffff88007c641900 ti: ffff88007c610000 task.ti: ffff88007c610000
[ 20.359026] RIP: 0010:[<ffffffff81092050>] [<ffffffff81092050>] queued_spin_lock_slowpath+0x110/0x1a0
[ 20.359026] RSP: 0018:ffff88007c613cf0 EFLAGS: 00000046
[ 20.359026] RAX: 0000000000000000 RBX: ffff88007fa2cc00 RCX: ffff88007fad5e80
[ 20.359026] RDX: ffff88007fa35e80 RSI: ffffffff81ca0d44 RDI: 00000000001c0000
[ 20.359026] RBP: ffff88007c613d08 R08: 0000000000000000 R09: 00000000000005e5
[ 20.359026] R10: ffff88007c613f58 R11: 00000000000005e5 R12: 0000000000000000
[ 20.359026] R13: ffff88007fad5e80 R14: 0000000057288000 R15: ffff88007c613da0
[ 20.359026] FS: 0000000000000000(0000) GS:ffff88007fac0000(0000) knlGS:0000000000000000
[ 20.359026] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 20.359026] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 20.359026] Stack:
[ 20.359026] ffff88007fa2cc00 0000000057288000 0000000000000001 ffff88007c613d38
[ 20.359026] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00
[ 20.359026] 000000000000cc00 ffff88007c613d58 ffffffff818b401f 0000000000000001
[ 20.359026] Call Trace:
[ 20.359026] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 20.359026] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 20.359026] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 20.359026] [<ffffffff810b904b>] try_to_del_timer_sync+0x1b/0x60
[ 20.359026] [<ffffffff810b90d3>] del_timer_sync+0x43/0x50
[ 20.359026] [<ffffffff818b35e6>] schedule_timeout+0x116/0x230
[ 20.359026] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 20.359026] [<ffffffff810ac000>] ? sched_torture_read_unlock+0x30/0x30
[ 20.359026] [<ffffffff818b3759>] schedule_timeout_uninterruptible+0x19/0x20
[ 20.359026] [<ffffffff810ac087>] rcu_torture_fakewriter+0x87/0x160
[ 20.359026] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] Code: c2 c1 e8 12 48 c1 ea 0c 83 e8 01 83 e2 30 48 98 48 81 c2 80 5e 01 00 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 <8b> 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02
[ 20.359026] NMI backtrace for cpu 7
[ 20.359026] CPU: 7 PID: 791 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] task: ffff88007c5fe400 ti: ffff88007c608000 task.ti: ffff88007c608000
[ 20.359026] RIP: 0010:[<ffffffff810920af>] [<ffffffff810920af>] queued_spin_lock_slowpath+0x16f/0x1a0
[ 20.359026] RSP: 0018:ffff88007c60bd18 EFLAGS: 00000002
[ 20.359026] RAX: 0000000000000101 RBX: ffff88007fbacc00 RCX: 0000000000000001
[ 20.359026] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101
[ 20.359026] RBP: ffff88007c60bd30 R08: 0000000000000000 R09: 0000000000000035
[ 20.359026] R10: ffff88007c60bf58 R11: 0000000000036a30 R12: 0000000057288000
[ 20.359026] R13: 0000000000000001 R14: 0000000057288000 R15: ffff88007c60bdd0
[ 20.359026] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000
[ 20.359026] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 20.359026] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 20.359026] Stack:
[ 20.359026] ffff88007fbacc00 0000000057288000 0000000000000001 ffff88007c60bd60
[ 20.359026] ffffffff81093185 0000000000000286 ffff88007fbacc00 ffff88007fbacc00
[ 20.359026] 000000000000cc00 ffff88007c60bd80 ffffffff818b401f 000000000000000d
[ 20.359026] Call Trace:
[ 20.359026] [<ffffffff81093185>] do_raw_spin_lock+0x145/0x150
[ 20.359026] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 20.359026] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 20.359026] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 20.359026] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 20.359026] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 20.359026] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 20.359026] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3
[ 20.359026] NMI backtrace for cpu 10
[ 20.359026] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] task: ffff88007cc98c80 ti: ffff88007cca4000 task.ti: ffff88007cca4000
[ 20.359026] RIP: 0010:[<ffffffff8100f303>] [<ffffffff8100f303>] default_idle+0x13/0xd0
[ 20.359026] RSP: 0018:ffff88007cca7ec0 EFLAGS: 00000202
[ 20.359026] RAX: 000000000000000a RBX: ffff88007cca8000 RCX: 0000000000000000
[ 20.359026] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7
[ 20.359026] RBP: ffff88007cca7ed0 R08: 0000000000000000 R09: 0000000000000000
[ 20.359026] R10: 0000000000000400 R11: 0000000000000002 R12: 0000000000000000
[ 20.359026] R13: 0000000000000000 R14: ffff88007cca4000 R15: ffff88007cca4000
[ 20.359026] FS: 0000000000000000(0000) GS:ffff88007fb40000(0000) knlGS:0000000000000000
[ 20.359026] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 20.359026] CR2: 0000560af8460720 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 20.359026] Stack:
[ 20.359026] ffff88007cca8000 0000000000000000 ffff88007cca7ee0 ffffffff8100fafa
[ 20.359026] ffff88007cca7ef0 ffffffff8108fd65 ffff88007cca7f30 ffffffff8108fff7
[ 20.359026] ffff88007cca8000 000000000000000a 0000000000000000 0000000000000000
[ 20.359026] Call Trace:
[ 20.359026] [<ffffffff8100fafa>] arch_cpu_idle+0xa/0x10
[ 20.359026] [<ffffffff8108fd65>] default_idle_call+0x25/0x30
[ 20.359026] [<ffffffff8108fff7>] cpu_startup_entry+0x287/0x2e0
[ 20.359026] [<ffffffff8103bf29>] start_secondary+0xf9/0x100
[ 20.359026] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 <e8> b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4
[ 20.359026] NMI backtrace for cpu 12
[ 20.359026] CPU: 12 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] task: ffff88007c647080 ti: ffff88007caac000 task.ti: ffff88007caac000
[ 20.359026] RIP: 0010:[<ffffffff8103ef7d>] [<ffffffff8103ef7d>] default_send_IPI_mask_sequence_phys+0x9d/0xd0
[ 20.359026] RSP: 0018:ffff88007caafc90 EFLAGS: 00000046
[ 20.359026] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000c
[ 20.359026] RDX: 000000000000000c RSI: 0000000000000010 RDI: 0000000000000300
[ 20.359026] RBP: ffff88007caafcc8 R08: 0000000000000000 R09: 00000000000094db
[ 20.359026] R10: ffff88007caaff58 R11: 00000000000005fb R12: ffffffff81f31740
[ 20.359026] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000c
[ 20.359026] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000
[ 20.359026] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 20.359026] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0
[ 20.359026] Stack:
[ 20.359026] 0000000000000086 0000000c7caafca0 000000000000ff40 0000000000000001
[ 20.359026] ffffffff8103fd20 0000000057288000 ffff88007caafdd0 ffff88007caafcd8
[ 20.359026] ffffffff8103fd36 ffff88007caafd20 ffffffff81331299 ffffffff81008b50
[ 20.359026] Call Trace:
[ 20.359026] [<ffffffff8103fd20>] ? irq_force_complete_move+0x20/0x20
[ 20.359026] [<ffffffff8103fd36>] nmi_raise_cpu_backtrace+0x16/0x20
[ 20.359026] [<ffffffff81331299>] nmi_trigger_all_cpu_backtrace+0x259/0x270
[ 20.359026] [<ffffffff81008b50>] ? show_stack+0x20/0x50
[ 20.359026] [<ffffffff8103fd74>] arch_trigger_all_cpu_backtrace+0x14/0x20
[ 20.359026] [<ffffffff810930e5>] do_raw_spin_lock+0xa5/0x150
[ 20.359026] [<ffffffff818b401f>] _raw_spin_lock_irqsave+0x1f/0x30
[ 20.359026] [<ffffffff810b8faf>] lock_timer_base.isra.23+0x4f/0x70
[ 20.359026] [<ffffffff810ba6fa>] mod_timer+0x6a/0x200
[ 20.359026] [<ffffffff810ad557>] rcu_torture_reader+0x2a7/0x2e0
[ 20.359026] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 20.359026] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 20.359026] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff <eb> 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4
[ 20.359026] NMI backtrace for cpu 15
[ 20.359026] CPU: 15 PID: 788 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14
[ 20.359026] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014
[ 20.359026] task: ffff88007c5fbe80 ti: ffff88007c51c000 task.ti: ffff88007c51c000
[ 20.359026] RIP: 0010:[<ffffffff81126479>] [<ffffffff81126479>] stutter_wait+0x49/0xc0
[ 20.359026] RSP: 0018:ffff88007c51fdf8 EFLAGS: 00000246
[ 20.359026] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001
[ 20.359026] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb
[ 20.359026] RBP: ffff88007c51fe00 R08: ffff88007c51c000 R09: ffff88007fbecc00
[ 20.359026] R10: ffff88007c51fe30 R11: 0000000000000001 R12: 0000000000000000
[ 20.359026] R13: 00000005e6fa4d80 R14: 0000000000000072 R15: ffffffff820d6e80
[ 20.359026] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000
[ 20.359026] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 20.359026] CR2: 00007fa3445ac000 CR3: 000000007b2ba000 CR4: 00000000000006e0
[ 20.359026] Stack:
[ 20.359026] 0000000000000000 ffff88007c51fea8 ffffffff810ad3ce 0000000000000000
[ 20.359026] 0000000081a0a240 2474d2f222e8f670 0000000000000b8f dead000000000200
[ 20.359026] 0000000000000000 00000000fffbcf27 ffffffff810ad590 0000000000000000
[ 20.359026] Call Trace:
[ 20.359026] [<ffffffff810ad3ce>] rcu_torture_reader+0x11e/0x2e0
[ 20.359026] [<ffffffff810ad590>] ? rcu_torture_reader+0x2e0/0x2e0
[ 20.359026] [<ffffffff810ad2b0>] ? rcutorture_trace_dump.part.7+0x20/0x20
[ 20.359026] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 20.359026] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 20.359026] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf
[ 33.172025] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 33.172025] 13-O.N: (0 ticks this GP) idle=40f/140000000000000/0 softirq=258/258 fqs=1
[ 33.172025] (detected by 0, t=21002 jiffies, g=114, c=113, q=8)
[ 33.172025] Task dump for CPU 13:
[ 33.172025] swapper/13 R running task 15600 0 1 0x00200000
[ 33.172025] ffff88007ccb4000 0000000000000000 0000000000000000 ffff88007ccb4000
[ 33.172025] 0000000000000000 0000000000000000 ffff88007ccb0000 ffff88007ccb3eb8
[ 33.172025] ffffffff813480f3 ffff88007ccb3ee0 ffffffff8103cd18 ffff88007ccb4000
[ 33.172025] Call Trace:
[ 33.172025] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 33.172025] [<ffffffff8103cd18>] ? native_play_dead+0xf8/0x130
[ 33.172025] [<ffffffff8100faea>] ? arch_cpu_idle_dead+0xa/0x10
[ 33.172025] [<ffffffff8108ffed>] ? cpu_startup_entry+0x27d/0x2e0
[ 33.172025] [<ffffffff8103bf29>] ? start_secondary+0xf9/0x100
[ 33.172025] rcu_preempt kthread starved for 20999 jiffies! g114 c113 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[ 33.172025] rcu_preempt S ffff88007cc53d08 14696 7 2 0x00000000
[ 33.172025] ffff88007cc53d08 ffff88007fa2cc00 ffff88007c651900 ffff88007cc0cb00
[ 33.172025] ffffffff818b401f 0000000000000001 ffff88007cc54000 ffff88007fa2cc00
[ 33.172025] ffff88007cc53d40 ffff88007fa2cc00 0000000000000003 ffff88007cc53d20
[ 33.172025] Call Trace:
[ 33.172025] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 33.172025] [<ffffffff818afa3a>] schedule+0x3a/0x90
[ 33.172025] [<ffffffff818b35de>] schedule_timeout+0x10e/0x230
[ 33.172025] [<ffffffff818b4189>] ? _raw_spin_unlock_irqrestore+0x19/0x30
[ 33.172025] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 33.172025] [<ffffffff810b3d27>] rcu_gp_kthread+0x957/0x1080
[ 33.172025] [<ffffffff8108c28a>] ? put_prev_task_rt+0x8a/0xb0
[ 33.172025] [<ffffffff818af400>] ? __schedule+0x630/0xb00
[ 33.172025] [<ffffffff8108fa70>] ? wake_atomic_t_function+0x60/0x60
[ 33.172025] [<ffffffff810b33d0>] ? call_rcu_sched+0x20/0x20
[ 33.172025] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 33.172025] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 33.172025] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 33.172025] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 60.351026] rcu-torture: rtc: ffffffff820d6e80 ver: 181 tfle: 0 rta: 182 rtaf: 0 rtf: 167 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 109826 onoff: 2/2:8/9 92,98:40,408 190:1424 (HZ=1000) barrier: 0/0:0 cbflood: 20
[ 60.353026] rcu-torture: Reader Pipe: 793985317 340 0 0 0 0 0 0 0 0 0
[ 60.353026] rcu-torture: Reader Batch: 791224797 2760860 0 0 0 0 0 0 0 0 0
[ 60.354285] rcu-torture: Free-Block Circulation: 181 180 179 176 173 171 170 169 168 167 0
[ 96.177032] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 96.177032] 13-O.N: (0 ticks this GP) idle=40f/140000000000000/0 softirq=258/258 fqs=1
[ 96.177032] (detected by 10, t=84008 jiffies, g=114, c=113, q=8)
[ 96.177032] Task dump for CPU 13:
[ 96.177032] swapper/13 R running task 15600 0 1 0x00200000
[ 96.177032] ffff88007ccb4000 0000000000000000 0000000000000000 ffff88007ccb4000
[ 96.177032] 0000000000000000 0000000000000000 ffff88007ccb0000 ffff88007ccb3eb8
[ 96.177032] ffffffff813480f3 ffff88007ccb3ee0 ffffffff8103cd18 ffff88007ccb4000
[ 96.177032] Call Trace:
[ 96.177032] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 96.177032] [<ffffffff8103cd18>] ? native_play_dead+0xf8/0x130
[ 96.177032] [<ffffffff8100faea>] ? arch_cpu_idle_dead+0xa/0x10
[ 96.177032] [<ffffffff8108ffed>] ? cpu_startup_entry+0x27d/0x2e0
[ 96.177032] [<ffffffff8103bf29>] ? start_secondary+0xf9/0x100
[ 96.177032] rcu_preempt kthread starved for 84013 jiffies! g114 c113 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[ 96.177032] rcu_preempt W ffff88007cc53d08 14696 7 2 0x00000000
[ 96.177032] ffff88007cc53d08 ffff88007fa2cc00 ffff88007c651900 ffff88007cc0cb00
[ 96.177032] ffffffff818b401f 0000000000000001 ffff88007cc54000 ffff88007fa2cc00
[ 96.177032] ffff88007cc53d40 ffff88007fa2cc00 0000000000000003 ffff88007cc53d20
[ 96.177032] Call Trace:
[ 96.177032] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 96.177032] [<ffffffff818afa3a>] schedule+0x3a/0x90
[ 96.177032] [<ffffffff818b35de>] schedule_timeout+0x10e/0x230
[ 96.177032] [<ffffffff818b4189>] ? _raw_spin_unlock_irqrestore+0x19/0x30
[ 96.177032] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 96.177032] [<ffffffff810b3d27>] rcu_gp_kthread+0x957/0x1080
[ 96.177032] [<ffffffff8108c28a>] ? put_prev_task_rt+0x8a/0xb0
[ 96.177032] [<ffffffff818af400>] ? __schedule+0x630/0xb00
[ 96.177032] [<ffffffff8108fa70>] ? wake_atomic_t_function+0x60/0x60
[ 96.177032] [<ffffffff810b33d0>] ? call_rcu_sched+0x20/0x20
[ 96.177032] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 96.177032] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 96.177032] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 96.177032] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 120.355040] rcu-torture: rtc: ffffffff820d6e80 ver: 181 tfle: 0 rta: 182 rtaf: 0 rtf: 167 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 195310 onoff: 2/2:8/9 92,98:40,408 190:1424 (HZ=1000) barrier: 0/0:0 cbflood: 20
[ 120.357115] rcu-torture: Reader Pipe: 1420919931 340 0 0 0 0 0 0 0 0 0
[ 120.358056] rcu-torture: Reader Batch: 1418159411 2760860 0 0 0 0 0 0 0 0 0
[ 120.359077] rcu-torture: Free-Block Circulation: 181 180 179 176 173 171 170 169 168 167 0
[ 120.360048] ??? Writer stall state RTWS_SYNC(7) g114 c113 f0x2
[ 120.361292] rcu_preempt: wait state: 3 ->state: 0x100
[ 120.361292] rcu_sched: wait state: 1 ->state: 0x1
[ 120.362453] rcu_bh: wait state: 1 ->state: 0x1
[ 120.362453] Dumping ftrace buffer:
[ 120.362453] (ftrace buffer empty)
[ 159.182078] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 159.182078] 13-O.N: (0 ticks this GP) idle=40f/140000000000000/0 softirq=258/258 fqs=1
[ 159.182078] (detected by 15, t=147013 jiffies, g=114, c=113, q=8)
[ 159.182078] Task dump for CPU 13:
[ 159.182078] swapper/13 R running task 15600 0 1 0x00200000
[ 159.182078] ffff88007ccb4000 0000000000000000 0000000000000000 ffff88007ccb4000
[ 159.182078] 0000000000000000 0000000000000000 ffff88007ccb0000 ffff88007ccb3eb8
[ 159.182078] ffffffff813480f3 ffff88007ccb3ee0 ffffffff8103cd18 ffff88007ccb4000
[ 159.182078] Call Trace:
[ 159.182078] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 159.182078] [<ffffffff8103cd18>] ? native_play_dead+0xf8/0x130
[ 159.182078] [<ffffffff8100faea>] ? arch_cpu_idle_dead+0xa/0x10
[ 159.182078] [<ffffffff8108ffed>] ? cpu_startup_entry+0x27d/0x2e0
[ 159.182078] [<ffffffff8103bf29>] ? start_secondary+0xf9/0x100
[ 159.182078] rcu_preempt kthread starved for 147016 jiffies! g114 c113 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[ 159.182078] rcu_preempt W ffff88007cc53d08 14696 7 2 0x00000000
[ 159.182078] ffff88007cc53d08 ffff88007fa2cc00 ffff88007c651900 ffff88007cc0cb00
[ 159.182078] ffffffff818b401f 0000000000000001 ffff88007cc54000 ffff88007fa2cc00
[ 159.182078] ffff88007cc53d40 ffff88007fa2cc00 0000000000000003 ffff88007cc53d20
[ 159.182078] Call Trace:
[ 159.182078] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 159.182078] [<ffffffff818afa3a>] schedule+0x3a/0x90
[ 159.182078] [<ffffffff818b35de>] schedule_timeout+0x10e/0x230
[ 159.182078] [<ffffffff818b4189>] ? _raw_spin_unlock_irqrestore+0x19/0x30
[ 159.182078] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 159.182078] [<ffffffff810b3d27>] rcu_gp_kthread+0x957/0x1080
[ 159.182078] [<ffffffff8108c28a>] ? put_prev_task_rt+0x8a/0xb0
[ 159.182078] [<ffffffff818af400>] ? __schedule+0x630/0xb00
[ 159.182078] [<ffffffff8108fa70>] ? wake_atomic_t_function+0x60/0x60
[ 159.182078] [<ffffffff810b33d0>] ? call_rcu_sched+0x20/0x20
[ 159.182078] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 159.182078] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 159.182078] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 159.182078] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 180.363033] rcu-torture: rtc: ffffffff820d6e80 ver: 181 tfle: 0 rta: 182 rtaf: 0 rtf: 167 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 280738 onoff: 2/2:8/9 92,98:40,408 190:1424 (HZ=1000) barrier: 0/0:0 cbflood: 20
[ 180.365172] rcu-torture: Reader Pipe: 2036955953 340 0 0 0 0 0 0 0 0 0
[ 180.366053] rcu-torture: Reader Batch: 2034195433 2760860 0 0 0 0 0 0 0 0 0
[ 180.367033] rcu-torture: Free-Block Circulation: 181 180 179 176 173 171 170 169 168 167 0
[ 180.368093] ??? Writer stall state RTWS_SYNC(7) g114 c113 f0x2
[ 180.369269] rcu_preempt: wait state: 3 ->state: 0x100
[ 180.369269] rcu_sched: wait state: 1 ->state: 0x1
[ 180.370393] rcu_bh: wait state: 1 ->state: 0x1
[ 222.187034] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 222.187034] 13-O.N: (0 ticks this GP) idle=40f/140000000000000/0 softirq=258/258 fqs=1
[ 222.187034] (detected by 0, t=210017 jiffies, g=114, c=113, q=8)
[ 222.187034] Task dump for CPU 13:
[ 222.187034] swapper/13 R running task 15600 0 1 0x00200000
[ 222.187034] ffff88007ccb4000 0000000000000000 0000000000000000 ffff88007ccb4000
[ 222.187034] 0000000000000000 0000000000000000 ffff88007ccb0000 ffff88007ccb3eb8
[ 222.187034] ffffffff813480f3 ffff88007ccb3ee0 ffffffff8103cd18 ffff88007ccb4000
[ 222.187034] Call Trace:
[ 222.187034] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 222.187034] [<ffffffff8103cd18>] ? native_play_dead+0xf8/0x130
[ 222.187034] [<ffffffff8100faea>] ? arch_cpu_idle_dead+0xa/0x10
[ 222.187034] [<ffffffff8108ffed>] ? cpu_startup_entry+0x27d/0x2e0
[ 222.187034] [<ffffffff8103bf29>] ? start_secondary+0xf9/0x100
[ 222.187034] rcu_preempt kthread starved for 210014 jiffies! g114 c113 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[ 222.187034] rcu_preempt W ffff88007cc53d08 14696 7 2 0x00000000
[ 222.187034] ffff88007cc53d08 ffff88007fa2cc00 ffff88007c651900 ffff88007cc0cb00
[ 222.187034] ffffffff818b401f 0000000000000001 ffff88007cc54000 ffff88007fa2cc00
[ 222.187034] ffff88007cc53d40 ffff88007fa2cc00 0000000000000003 ffff88007cc53d20
[ 222.187034] Call Trace:
[ 222.187034] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 222.187034] [<ffffffff818afa3a>] schedule+0x3a/0x90
[ 222.187034] [<ffffffff818b35de>] schedule_timeout+0x10e/0x230
[ 222.187034] [<ffffffff818b4189>] ? _raw_spin_unlock_irqrestore+0x19/0x30
[ 222.187034] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 222.187034] [<ffffffff810b3d27>] rcu_gp_kthread+0x957/0x1080
[ 222.187034] [<ffffffff8108c28a>] ? put_prev_task_rt+0x8a/0xb0
[ 222.187034] [<ffffffff818af400>] ? __schedule+0x630/0xb00
[ 222.187034] [<ffffffff8108fa70>] ? wake_atomic_t_function+0x60/0x60
[ 222.187034] [<ffffffff810b33d0>] ? call_rcu_sched+0x20/0x20
[ 222.187034] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 222.187034] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 222.187034] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 222.187034] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 240.370025] rcu-torture: rtc: ffffffff820d6e80 ver: 181 tfle: 0 rta: 182 rtaf: 0 rtf: 167 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 367421 onoff: 2/2:8/9 92,98:40,408 190:1424 (HZ=1000) barrier: 0/0:0 cbflood: 20
[ 240.372086] rcu-torture: Reader Pipe: 2665088804 340 0 0 0 0 0 0 0 0 0
[ 240.372086] rcu-torture: Reader Batch: 2662328284 2760860 0 0 0 0 0 0 0 0 0
[ 240.373235] rcu-torture: Free-Block Circulation: 181 180 179 176 173 171 170 169 168 167 0
[ 240.374150] ??? Writer stall state RTWS_SYNC(7) g114 c113 f0x2
[ 240.375523] rcu_preempt: wait state: 3 ->state: 0x100
[ 240.376079] rcu_sched: wait state: 1 ->state: 0x1
[ 240.376079] rcu_bh: wait state: 1 ->state: 0x1
[ 285.192016] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 285.192016] 13-O.N: (0 ticks this GP) idle=40f/140000000000000/0 softirq=258/258 fqs=1
[ 285.192016] (detected by 4, t=273023 jiffies, g=114, c=113, q=8)
[ 285.192016] Task dump for CPU 13:
[ 285.192016] swapper/13 R running task 15600 0 1 0x00200000
[ 285.192016] ffff88007ccb4000 0000000000000000 0000000000000000 ffff88007ccb4000
[ 285.192016] 0000000000000000 0000000000000000 ffff88007ccb0000 ffff88007ccb3eb8
[ 285.192016] ffffffff813480f3 ffff88007ccb3ee0 ffffffff8103cd18 ffff88007ccb4000
[ 285.192016] Call Trace:
[ 285.192016] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 285.192016] [<ffffffff8103cd18>] ? native_play_dead+0xf8/0x130
[ 285.192016] [<ffffffff8100faea>] ? arch_cpu_idle_dead+0xa/0x10
[ 285.192016] [<ffffffff8108ffed>] ? cpu_startup_entry+0x27d/0x2e0
[ 285.192016] [<ffffffff8103bf29>] ? start_secondary+0xf9/0x100
[ 285.192016] rcu_preempt kthread starved for 273027 jiffies! g114 c113 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[ 285.192016] rcu_preempt W ffff88007cc53d08 14696 7 2 0x00000000
[ 285.192016] ffff88007cc53d08 ffff88007fa2cc00 ffff88007c651900 ffff88007cc0cb00
[ 285.192016] ffffffff818b401f 0000000000000001 ffff88007cc54000 ffff88007fa2cc00
[ 285.192016] ffff88007cc53d40 ffff88007fa2cc00 0000000000000003 ffff88007cc53d20
[ 285.192016] Call Trace:
[ 285.192016] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 285.192016] [<ffffffff818afa3a>] schedule+0x3a/0x90
[ 285.192016] [<ffffffff818b35de>] schedule_timeout+0x10e/0x230
[ 285.192016] [<ffffffff818b4189>] ? _raw_spin_unlock_irqrestore+0x19/0x30
[ 285.192016] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 285.192016] [<ffffffff810b3d27>] rcu_gp_kthread+0x957/0x1080
[ 285.192016] [<ffffffff8108c28a>] ? put_prev_task_rt+0x8a/0xb0
[ 285.192016] [<ffffffff818af400>] ? __schedule+0x630/0xb00
[ 285.192016] [<ffffffff8108fa70>] ? wake_atomic_t_function+0x60/0x60
[ 285.192016] [<ffffffff810b33d0>] ? call_rcu_sched+0x20/0x20
[ 285.192016] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 285.192016] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 285.192016] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 285.192016] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 300.376028] rcu-torture: rtc: ffffffff820d6e80 ver: 181 tfle: 0 rta: 182 rtaf: 0 rtf: 167 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 453846 onoff: 2/2:8/9 92,98:40,408 190:1424 (HZ=1000) barrier: 0/0:0 cbflood: 20
[ 300.378188] rcu-torture: Reader Pipe: 3305911667 340 0 0 0 0 0 0 0 0 0
[ 300.379057] rcu-torture: Reader Batch: 3303151147 2760860 0 0 0 0 0 0 0 0 0
[ 300.380041] rcu-torture: Free-Block Circulation: 181 180 179 176 173 171 170 169 168 167 0
[ 300.381069] ??? Writer stall state RTWS_SYNC(7) g114 c113 f0x2
[ 300.382167] rcu_preempt: wait state: 3 ->state: 0x100
[ 300.382167] rcu_sched: wait state: 1 ->state: 0x1
[ 300.383324] rcu_bh: wait state: 1 ->state: 0x1
[ 348.197029] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 348.197029] 13-O.N: (0 ticks this GP) idle=40f/140000000000000/0 softirq=258/258 fqs=1
[ 348.197029] (detected by 15, t=336028 jiffies, g=114, c=113, q=10)
[ 348.197029] Task dump for CPU 13:
[ 348.197029] swapper/13 R running task 15600 0 1 0x00200000
[ 348.197029] ffff88007ccb4000 0000000000000000 0000000000000000 ffff88007ccb4000
[ 348.197029] 0000000000000000 0000000000000000 ffff88007ccb0000 ffff88007ccb3eb8
[ 348.197029] ffffffff813480f3 ffff88007ccb3ee0 ffffffff8103cd18 ffff88007ccb4000
[ 348.197029] Call Trace:
[ 348.197029] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 348.197029] [<ffffffff8103cd18>] ? native_play_dead+0xf8/0x130
[ 348.197029] [<ffffffff8100faea>] ? arch_cpu_idle_dead+0xa/0x10
[ 348.197029] [<ffffffff8108ffed>] ? cpu_startup_entry+0x27d/0x2e0
[ 348.197029] [<ffffffff8103bf29>] ? start_secondary+0xf9/0x100
[ 348.197029] rcu_preempt kthread starved for 336033 jiffies! g114 c113 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[ 348.197029] rcu_preempt W ffff88007cc53d08 14696 7 2 0x00000000
[ 348.197029] ffff88007cc53d08 ffff88007fa2cc00 ffff88007c651900 ffff88007cc0cb00
[ 348.197029] ffffffff818b401f 0000000000000001 ffff88007cc54000 ffff88007fa2cc00
[ 348.197029] ffff88007cc53d40 ffff88007fa2cc00 0000000000000003 ffff88007cc53d20
[ 348.197029] Call Trace:
[ 348.197029] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 348.197029] [<ffffffff818afa3a>] schedule+0x3a/0x90
[ 348.197029] [<ffffffff818b35de>] schedule_timeout+0x10e/0x230
[ 348.197029] [<ffffffff818b4189>] ? _raw_spin_unlock_irqrestore+0x19/0x30
[ 348.197029] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 348.197029] [<ffffffff810b3d27>] rcu_gp_kthread+0x957/0x1080
[ 348.197029] [<ffffffff8108c28a>] ? put_prev_task_rt+0x8a/0xb0
[ 348.197029] [<ffffffff818af400>] ? __schedule+0x630/0xb00
[ 348.197029] [<ffffffff8108fa70>] ? wake_atomic_t_function+0x60/0x60
[ 348.197029] [<ffffffff810b33d0>] ? call_rcu_sched+0x20/0x20
[ 348.197029] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 348.197029] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 348.197029] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 348.197029] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 360.384765] rcu-torture: rtc: ffffffff820d6e80 ver: 181 tfle: 0 rta: 182 rtaf: 0 rtf: 167 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 540496 onoff: 2/2:8/9 92,98:40,408 190:1424 (HZ=1000) barrier: 0/0:0 cbflood: 20
[ 360.386149] rcu-torture: Reader Pipe: 3950833032 340 0 0 0 0 0 0 0 0 0
[ 360.387094] rcu-torture: Reader Batch: 3948072512 2760860 0 0 0 0 0 0 0 0 0
[ 360.388102] rcu-torture: Free-Block Circulation: 181 180 179 176 173 171 170 169 168 167 0
[ 360.389088] ??? Writer stall state RTWS_SYNC(7) g114 c113 f0x2
[ 360.390229] rcu_preempt: wait state: 3 ->state: 0x100
[ 360.390229] rcu_sched: wait state: 1 ->state: 0x1
[ 360.391236] rcu_bh: wait state: 1 ->state: 0x1
[ 411.202025] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 411.202025] 13-O.N: (0 ticks this GP) idle=40f/140000000000000/0 softirq=258/258 fqs=1
[ 411.202025] (detected by 10, t=399033 jiffies, g=114, c=113, q=10)
[ 411.202025] Task dump for CPU 13:
[ 411.202025] swapper/13 R running task 15600 0 1 0x00200000
[ 411.202025] ffff88007ccb4000 0000000000000000 0000000000000000 ffff88007ccb4000
[ 411.202025] 0000000000000000 0000000000000000 ffff88007ccb0000 ffff88007ccb3eb8
[ 411.202025] ffffffff813480f3 ffff88007ccb3ee0 ffffffff8103cd18 ffff88007ccb4000
[ 411.202025] Call Trace:
[ 411.202025] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 411.202025] [<ffffffff8103cd18>] ? native_play_dead+0xf8/0x130
[ 411.202025] [<ffffffff8100faea>] ? arch_cpu_idle_dead+0xa/0x10
[ 411.202025] [<ffffffff8108ffed>] ? cpu_startup_entry+0x27d/0x2e0
[ 411.202025] [<ffffffff8103bf29>] ? start_secondary+0xf9/0x100
[ 411.202025] rcu_preempt kthread starved for 399037 jiffies! g114 c113 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[ 411.202025] rcu_preempt W ffff88007cc53d08 14696 7 2 0x00000000
[ 411.202025] ffff88007cc53d08 ffff88007fa2cc00 ffff88007c651900 ffff88007cc0cb00
[ 411.202025] ffffffff818b401f 0000000000000001 ffff88007cc54000 ffff88007fa2cc00
[ 411.202025] ffff88007cc53d40 ffff88007fa2cc00 0000000000000003 ffff88007cc53d20
[ 411.202025] Call Trace:
[ 411.202025] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 411.202025] [<ffffffff818afa3a>] schedule+0x3a/0x90
[ 411.202025] [<ffffffff818b35de>] schedule_timeout+0x10e/0x230
[ 411.202025] [<ffffffff818b4189>] ? _raw_spin_unlock_irqrestore+0x19/0x30
[ 411.202025] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 411.202025] [<ffffffff810b3d27>] rcu_gp_kthread+0x957/0x1080
[ 411.202025] [<ffffffff8108c28a>] ? put_prev_task_rt+0x8a/0xb0
[ 411.202025] [<ffffffff818af400>] ? __schedule+0x630/0xb00
[ 411.202025] [<ffffffff8108fa70>] ? wake_atomic_t_function+0x60/0x60
[ 411.202025] [<ffffffff810b33d0>] ? call_rcu_sched+0x20/0x20
[ 411.202025] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 411.202025] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 411.202025] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 411.202025] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 420.391036] rcu-torture: rtc: ffffffff820d6e80 ver: 181 tfle: 0 rta: 182 rtaf: 0 rtf: 167 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 627073 onoff: 2/2:8/9 92,98:40,408 190:1424 (HZ=1000) barrier: 0/0:0 cbflood: 20
[ 420.393089] rcu-torture: Reader Pipe: 4571684909 340 0 0 0 0 0 0 0 0 0
[ 420.394037] rcu-torture: Reader Batch: 4568924388 2760860 0 0 0 0 0 0 0 0 0
[ 420.395057] rcu-torture: Free-Block Circulation: 181 180 179 176 173 171 170 169 168 167 0
[ 420.396078] ??? Writer stall state RTWS_SYNC(7) g114 c113 f0x2
[ 420.397239] rcu_preempt: wait state: 3 ->state: 0x100
[ 420.397239] rcu_sched: wait state: 1 ->state: 0x1
[ 420.398375] rcu_bh: wait state: 1 ->state: 0x1
[ 474.207031] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 474.207031] 13-O.N: (0 ticks this GP) idle=40f/140000000000000/0 softirq=258/258 fqs=1
[ 474.207031] (detected by 10, t=462038 jiffies, g=114, c=113, q=10)
[ 474.207031] Task dump for CPU 13:
[ 474.207031] swapper/13 R running task 15600 0 1 0x00200000
[ 474.207031] ffff88007ccb4000 0000000000000000 0000000000000000 ffff88007ccb4000
[ 474.207031] 0000000000000000 0000000000000000 ffff88007ccb0000 ffff88007ccb3eb8
[ 474.207031] ffffffff813480f3 ffff88007ccb3ee0 ffffffff8103cd18 ffff88007ccb4000
[ 474.207031] Call Trace:
[ 474.207031] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 474.207031] [<ffffffff8103cd18>] ? native_play_dead+0xf8/0x130
[ 474.207031] [<ffffffff8100faea>] ? arch_cpu_idle_dead+0xa/0x10
[ 474.207031] [<ffffffff8108ffed>] ? cpu_startup_entry+0x27d/0x2e0
[ 474.207031] [<ffffffff8103bf29>] ? start_secondary+0xf9/0x100
[ 474.207031] rcu_preempt kthread starved for 462043 jiffies! g114 c113 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[ 474.207031] rcu_preempt W ffff88007cc53d08 14696 7 2 0x00000000
[ 474.207031] ffff88007cc53d08 ffff88007fa2cc00 ffff88007c651900 ffff88007cc0cb00
[ 474.207031] ffffffff818b401f 0000000000000001 ffff88007cc54000 ffff88007fa2cc00
[ 474.207031] ffff88007cc53d40 ffff88007fa2cc00 0000000000000003 ffff88007cc53d20
[ 474.207031] Call Trace:
[ 474.207031] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 474.207031] [<ffffffff818afa3a>] schedule+0x3a/0x90
[ 474.207031] [<ffffffff818b35de>] schedule_timeout+0x10e/0x230
[ 474.207031] [<ffffffff818b4189>] ? _raw_spin_unlock_irqrestore+0x19/0x30
[ 474.207031] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 474.207031] [<ffffffff810b3d27>] rcu_gp_kthread+0x957/0x1080
[ 474.207031] [<ffffffff8108c28a>] ? put_prev_task_rt+0x8a/0xb0
[ 474.207031] [<ffffffff818af400>] ? __schedule+0x630/0xb00
[ 474.207031] [<ffffffff8108fa70>] ? wake_atomic_t_function+0x60/0x60
[ 474.207031] [<ffffffff810b33d0>] ? call_rcu_sched+0x20/0x20
[ 474.207031] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 474.207031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 474.207031] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 474.207031] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 480.398033] rcu-torture: rtc: ffffffff820d6e80 ver: 181 tfle: 0 rta: 182 rtaf: 0 rtf: 167 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 711625 onoff: 2/2:8/9 92,98:40,408 190:1424 (HZ=1000) barrier: 0/0:0 cbflood: 20
[ 480.400041] rcu-torture: Reader Pipe: 5186807514 340 0 0 0 0 0 0 0 0 0
[ 480.401030] rcu-torture: Reader Batch: 5184046994 2760860 0 0 0 0 0 0 0 0 0
[ 480.402062] rcu-torture: Free-Block Circulation: 181 180 179 176 173 171 170 169 168 167 0
[ 480.403081] ??? Writer stall state RTWS_SYNC(7) g114 c113 f0x2
[ 480.404204] rcu_preempt: wait state: 3 ->state: 0x100
[ 480.404204] rcu_sched: wait state: 1 ->state: 0x1
[ 480.405376] rcu_bh: wait state: 1 ->state: 0x1
[ 537.212067] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 537.212067] 13-O.N: (0 ticks this GP) idle=40f/140000000000000/0 softirq=258/258 fqs=1
[ 537.212067] (detected by 0, t=525042 jiffies, g=114, c=113, q=10)
[ 537.212067] Task dump for CPU 13:
[ 537.212067] swapper/13 R running task 15600 0 1 0x00200000
[ 537.212067] ffff88007ccb4000 0000000000000000 0000000000000000 ffff88007ccb4000
[ 537.212067] 0000000000000000 0000000000000000 ffff88007ccb0000 ffff88007ccb3eb8
[ 537.212067] ffffffff813480f3 ffff88007ccb3ee0 ffffffff8103cd18 ffff88007ccb4000
[ 537.212067] Call Trace:
[ 537.212067] [<ffffffff813480f3>] ? __this_cpu_preempt_check+0x13/0x20
[ 537.212067] [<ffffffff8103cd18>] ? native_play_dead+0xf8/0x130
[ 537.212067] [<ffffffff8100faea>] ? arch_cpu_idle_dead+0xa/0x10
[ 537.212067] [<ffffffff8108ffed>] ? cpu_startup_entry+0x27d/0x2e0
[ 537.212067] [<ffffffff8103bf29>] ? start_secondary+0xf9/0x100
[ 537.212067] rcu_preempt kthread starved for 525039 jiffies! g114 c113 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[ 537.212067] rcu_preempt W ffff88007cc53d08 14696 7 2 0x00000000
[ 537.212067] ffff88007cc53d08 ffff88007fa2cc00 ffff88007c651900 ffff88007cc0cb00
[ 537.212067] ffffffff818b401f 0000000000000001 ffff88007cc54000 ffff88007fa2cc00
[ 537.212067] ffff88007cc53d40 ffff88007fa2cc00 0000000000000003 ffff88007cc53d20
[ 537.212067] Call Trace:
[ 537.212067] [<ffffffff818b401f>] ? _raw_spin_lock_irqsave+0x1f/0x30
[ 537.212067] [<ffffffff818afa3a>] schedule+0x3a/0x90
[ 537.212067] [<ffffffff818b35de>] schedule_timeout+0x10e/0x230
[ 537.212067] [<ffffffff818b4189>] ? _raw_spin_unlock_irqrestore+0x19/0x30
[ 537.212067] [<ffffffff810b8dd0>] ? detach_if_pending+0xf0/0xf0
[ 537.212067] [<ffffffff810b3d27>] rcu_gp_kthread+0x957/0x1080
[ 537.212067] [<ffffffff8108c28a>] ? put_prev_task_rt+0x8a/0xb0
[ 537.212067] [<ffffffff818af400>] ? __schedule+0x630/0xb00
[ 537.212067] [<ffffffff8108fa70>] ? wake_atomic_t_function+0x60/0x60
[ 537.212067] [<ffffffff810b33d0>] ? call_rcu_sched+0x20/0x20
[ 537.212067] [<ffffffff810732f6>] kthread+0xd6/0xf0
[ 537.212067] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 537.212067] [<ffffffff818b499f>] ret_from_fork+0x3f/0x70
[ 537.212067] [<ffffffff81073220>] ? kthread_worker_fn+0x180/0x180
[ 540.405017] rcu-torture: rtc: ffffffff820d6e80 ver: 181 tfle: 0 rta: 182 rtaf: 0 rtf: 167 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 799336 onoff: 2/2:8/9 92,98:40,408 190:1424 (HZ=1000) barrier: 0/0:0 cbflood: 20
[ 540.406051] rcu-torture: Reader Pipe: 5823840140 340 0 0 0 0 0 0 0 0 0
[ 540.407049] rcu-torture: Reader Batch: 5821079620 2760860 0 0 0 0 0 0 0 0 0
[ 540.407049] rcu-torture: Free-Block Circulation: 181 180 179 176 173 171 170 169 168 167 0
[ 540.408141] ??? Writer stall state RTWS_SYNC(7) g114 c113 f0x2
[ 540.409211] rcu_preempt: wait state: 3 ->state: 0x100
[ 540.409211] rcu_sched: wait state: 1 ->state: 0x1
[ 540.409211] rcu_bh: wait state: 1 ->state: 0x1
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 473 bytes --]
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-29 13:49 ` Paul E. McKenney
@ 2016-03-30 14:55 ` Paul E. McKenney
2016-03-31 15:42 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-30 14:55 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Tue, Mar 29, 2016 at 06:49:08AM -0700, Paul E. McKenney wrote:
> On Mon, Mar 28, 2016 at 05:28:14PM -0700, Paul E. McKenney wrote:
> > On Mon, Mar 28, 2016 at 05:25:18PM -0700, Paul E. McKenney wrote:
> > > On Mon, Mar 28, 2016 at 06:08:41AM -0700, Paul E. McKenney wrote:
> > > > On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
> > > > > On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
> > >
> > > [ . . . ]
> > >
> > > > > > OK, so I should instrument migration_call() if I get the repro rate up?
> > > > >
> > > > > Can do, maybe try the below first. (yes I know how long it all takes :/)
> > > >
> > > > OK, will run this today, then run calibration for last night's run this
> > > > evening.
>
> And of 18 two-hour runs, there were five failures, or about 28%.
> That said, I don't have even one significant digit on the failure rate,
> as 5 of 18 is within the 95% confidence limits for a failure probability
> as low as 12.5% and as high as 47%.
And after last night's run, this is narrowed down to between 23% and 38%,
which is close enough. Average is 30%, 18 failures in 60 runs.
Next step is to test Peter's patch some more. Might take a couple of
night's worth of runs to get statistical significance. After which
it will be time to rebase to 4.6-rc1.
Thanx, Paul
> However, the previous night's runs gave 7 failures in 24 two-hour runs,
> for about a 29% failure rate. There is thus a good probability that my
> disabling of TIF_POLLING_NRFLAG had no effect whatsoever, tantalizing
> though that possibility might have been.
>
> (FWIW, I use the pdf_binomial() and quantile_binomial() functions in
> maxima for computing this stuff. Similar stuff is no doubt available
> in other math/stat packages as well.)
>
> So we have bugs, but not much idea where they are. Situation normal.
>
> Other thoughts?
>
> Thanx, Paul
>
> > > And there was one failure out of ten runs. If last night's failure rate
> > > was typical (7 of 24), then I believe we can be about 87% confident that
> > > this change helped. That isn't all that confident, but...
> >
> > And, as Murphy would have it, the instrumentation didn't trigger. I just
> > got the usual stall-warning messages with a starving RCU grace-period
> > kthread.
> >
> > Thanx, Paul
> >
> > > Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > >
> > > So what to run tonight?
> > >
> > > The most sane approach would be to run stock in order to get a baseline
> > > failure rate. It is tempting to run more of Peter's patch, but part of
> > > the problem is that we don't know the current baseline.
> > >
> > > So baseline it is...
> > >
> > > Thanx, Paul
> > >
> > > > Speaking of which, last night's run (disabling TIF_POLLING_NRFLAG)
> > > > consisted of 24 two-hour runs. Six of them had hard hangs, and another
> > > > had a hang that eventually unhung of its own accord. I believe that this
> > > > is significantly fewer failures than from a stock kernel, but I could
> > > > be wrong, and it will take some serious testing to give statistical
> > > > confidence for whatever conclusion is correct.
> > > >
> > > > > > > The other interesting case would be resched_cpu(), which uses
> > > > > > > set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
> > > > > > > atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
> > > > > > > not set. If indeed not, it will send an IPI.
> > > > > > >
> > > > > > > This assumes the idle 'exit' path will do the same as the IPI does; and
> > > > > > > if you look at cpu_idle_loop() it does indeed do both
> > > > > > > preempt_fold_need_resched() and sched_ttwu_pending().
> > > > > > >
> > > > > > > Note that one cannot rely on irq_enter()/irq_exit() being called for the
> > > > > > > scheduler IPI.
> > > > > >
> > > > > > OK, thank you for the info! Any specific debug actions?
> > > > >
> > > > > Dunno, something like the below should bring visibility into the
> > > > > (lockless) wake_list thingy.
> > > > >
> > > > > So these trace_printk()s should happen between trace_sched_waking() and
> > > > > trace_sched_wakeup() (I've not fully read the thread, but ISTR you had
> > > > > some traces with these here thingies on).
> > > > >
> > > > > ---
> > > > > arch/x86/include/asm/bitops.h | 6 ++++--
> > > > > kernel/sched/core.c | 9 +++++++++
> > > > > 2 files changed, 13 insertions(+), 2 deletions(-)
> > > > >
> > > > > diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
> > > > > index 7766d1cf096e..5345784d5e41 100644
> > > > > --- a/arch/x86/include/asm/bitops.h
> > > > > +++ b/arch/x86/include/asm/bitops.h
> > > > > @@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
> > > > > if (IS_IMMEDIATE(nr)) {
> > > > > asm volatile(LOCK_PREFIX "andb %1,%0"
> > > > > : CONST_MASK_ADDR(nr, addr)
> > > > > - : "iq" ((u8)~CONST_MASK(nr)));
> > > > > + : "iq" ((u8)~CONST_MASK(nr))
> > > > > + : "memory");
> > > > > } else {
> > > > > asm volatile(LOCK_PREFIX "btr %1,%0"
> > > > > : BITOP_ADDR(addr)
> > > > > - : "Ir" (nr));
> > > > > + : "Ir" (nr)
> > > > > + : "memory");
> > > > > }
> > > > > }
> > > >
> > > > Is the above addition of "memory" strictly for the debug below, or is
> > > > it also a potential fix?
> > > >
> > > > Starting it up regardless, but figured I should ask!
> > > >
> > > > Thanx, Paul
> > > >
> > > > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> > > > > index 0b21e7a724e1..b446f73c530d 100644
> > > > > --- a/kernel/sched/core.c
> > > > > +++ b/kernel/sched/core.c
> > > > > @@ -1669,6 +1669,7 @@ void sched_ttwu_pending(void)
> > > > > while (llist) {
> > > > > p = llist_entry(llist, struct task_struct, wake_entry);
> > > > > llist = llist_next(llist);
> > > > > + trace_printk("waking %d\n", p->pid);
> > > > > ttwu_do_activate(rq, p, 0);
> > > > > }
> > > > >
> > > > > @@ -1719,6 +1720,7 @@ static void ttwu_queue_remote(struct task_struct *p, int cpu)
> > > > > struct rq *rq = cpu_rq(cpu);
> > > > >
> > > > > if (llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)) {
> > > > > + trace_printk("queued %d for waking on %d\n", p->pid, cpu);
> > > > > if (!set_nr_if_polling(rq->idle))
> > > > > smp_send_reschedule(cpu);
> > > > > else
> > > > > @@ -5397,10 +5399,17 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
> > > > > migrate_tasks(rq);
> > > > > BUG_ON(rq->nr_running != 1); /* the migration thread */
> > > > > raw_spin_unlock_irqrestore(&rq->lock, flags);
> > > > > +
> > > > > + /* really bad m'kay */
> > > > > + WARN_ON(!llist_empty(&rq->wake_list));
> > > > > +
> > > > > break;
> > > > >
> > > > > case CPU_DEAD:
> > > > > calc_load_migrate(rq);
> > > > > +
> > > > > + /* more bad */
> > > > > + WARN_ON(!llist_empty(&rq->wake_list));
> > > > > break;
> > > > > #endif
> > > > > }
> > > > >
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-30 14:55 ` Paul E. McKenney
@ 2016-03-31 15:42 ` Paul E. McKenney
2016-04-03 8:18 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-03-31 15:42 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Wed, Mar 30, 2016 at 07:55:47AM -0700, Paul E. McKenney wrote:
> On Tue, Mar 29, 2016 at 06:49:08AM -0700, Paul E. McKenney wrote:
> > On Mon, Mar 28, 2016 at 05:28:14PM -0700, Paul E. McKenney wrote:
> > > On Mon, Mar 28, 2016 at 05:25:18PM -0700, Paul E. McKenney wrote:
> > > > On Mon, Mar 28, 2016 at 06:08:41AM -0700, Paul E. McKenney wrote:
> > > > > On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
> > > > > > On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
> > > >
> > > > [ . . . ]
> > > >
> > > > > > > OK, so I should instrument migration_call() if I get the repro rate up?
> > > > > >
> > > > > > Can do, maybe try the below first. (yes I know how long it all takes :/)
> > > > >
> > > > > OK, will run this today, then run calibration for last night's run this
> > > > > evening.
> >
> > And of 18 two-hour runs, there were five failures, or about 28%.
> > That said, I don't have even one significant digit on the failure rate,
> > as 5 of 18 is within the 95% confidence limits for a failure probability
> > as low as 12.5% and as high as 47%.
>
> And after last night's run, this is narrowed down to between 23% and 38%,
> which is close enough. Average is 30%, 18 failures in 60 runs.
>
> Next step is to test Peter's patch some more. Might take a couple of
> night's worth of runs to get statistical significance. After which
> it will be time to rebase to 4.6-rc1.
And the first night was not so good: 6 failures out of 24 runs. Adding
this to the 1-of-10 earlier gets 7 failures of 34. Here are how things
stack up given the range of base failure estimates:
Low 95% bound of 23%: 84% confidence.
Actual measurement of 30%: 92% confidence.
High 95% bound of 38%: 98% confidence.
So there is still some chance that Peter's patch is helping. I will
run for one more evening, after which it will be time to move forward
to 4.6-rc1.
Thanx, Paul
> > However, the previous night's runs gave 7 failures in 24 two-hour runs,
> > for about a 29% failure rate. There is thus a good probability that my
> > disabling of TIF_POLLING_NRFLAG had no effect whatsoever, tantalizing
> > though that possibility might have been.
> >
> > (FWIW, I use the pdf_binomial() and quantile_binomial() functions in
> > maxima for computing this stuff. Similar stuff is no doubt available
> > in other math/stat packages as well.)
> >
> > So we have bugs, but not much idea where they are. Situation normal.
> >
> > Other thoughts?
> >
> > Thanx, Paul
> >
> > > > And there was one failure out of ten runs. If last night's failure rate
> > > > was typical (7 of 24), then I believe we can be about 87% confident that
> > > > this change helped. That isn't all that confident, but...
> > >
> > > And, as Murphy would have it, the instrumentation didn't trigger. I just
> > > got the usual stall-warning messages with a starving RCU grace-period
> > > kthread.
> > >
> > > Thanx, Paul
> > >
> > > > Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> > > >
> > > > So what to run tonight?
> > > >
> > > > The most sane approach would be to run stock in order to get a baseline
> > > > failure rate. It is tempting to run more of Peter's patch, but part of
> > > > the problem is that we don't know the current baseline.
> > > >
> > > > So baseline it is...
> > > >
> > > > Thanx, Paul
> > > >
> > > > > Speaking of which, last night's run (disabling TIF_POLLING_NRFLAG)
> > > > > consisted of 24 two-hour runs. Six of them had hard hangs, and another
> > > > > had a hang that eventually unhung of its own accord. I believe that this
> > > > > is significantly fewer failures than from a stock kernel, but I could
> > > > > be wrong, and it will take some serious testing to give statistical
> > > > > confidence for whatever conclusion is correct.
> > > > >
> > > > > > > > The other interesting case would be resched_cpu(), which uses
> > > > > > > > set_nr_and_not_polling() to kick a remote cpu to call schedule(). It
> > > > > > > > atomically sets TIF_NEED_RESCHED and returns if TIF_POLLING_NRFLAG was
> > > > > > > > not set. If indeed not, it will send an IPI.
> > > > > > > >
> > > > > > > > This assumes the idle 'exit' path will do the same as the IPI does; and
> > > > > > > > if you look at cpu_idle_loop() it does indeed do both
> > > > > > > > preempt_fold_need_resched() and sched_ttwu_pending().
> > > > > > > >
> > > > > > > > Note that one cannot rely on irq_enter()/irq_exit() being called for the
> > > > > > > > scheduler IPI.
> > > > > > >
> > > > > > > OK, thank you for the info! Any specific debug actions?
> > > > > >
> > > > > > Dunno, something like the below should bring visibility into the
> > > > > > (lockless) wake_list thingy.
> > > > > >
> > > > > > So these trace_printk()s should happen between trace_sched_waking() and
> > > > > > trace_sched_wakeup() (I've not fully read the thread, but ISTR you had
> > > > > > some traces with these here thingies on).
> > > > > >
> > > > > > ---
> > > > > > arch/x86/include/asm/bitops.h | 6 ++++--
> > > > > > kernel/sched/core.c | 9 +++++++++
> > > > > > 2 files changed, 13 insertions(+), 2 deletions(-)
> > > > > >
> > > > > > diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
> > > > > > index 7766d1cf096e..5345784d5e41 100644
> > > > > > --- a/arch/x86/include/asm/bitops.h
> > > > > > +++ b/arch/x86/include/asm/bitops.h
> > > > > > @@ -112,11 +112,13 @@ clear_bit(long nr, volatile unsigned long *addr)
> > > > > > if (IS_IMMEDIATE(nr)) {
> > > > > > asm volatile(LOCK_PREFIX "andb %1,%0"
> > > > > > : CONST_MASK_ADDR(nr, addr)
> > > > > > - : "iq" ((u8)~CONST_MASK(nr)));
> > > > > > + : "iq" ((u8)~CONST_MASK(nr))
> > > > > > + : "memory");
> > > > > > } else {
> > > > > > asm volatile(LOCK_PREFIX "btr %1,%0"
> > > > > > : BITOP_ADDR(addr)
> > > > > > - : "Ir" (nr));
> > > > > > + : "Ir" (nr)
> > > > > > + : "memory");
> > > > > > }
> > > > > > }
> > > > >
> > > > > Is the above addition of "memory" strictly for the debug below, or is
> > > > > it also a potential fix?
> > > > >
> > > > > Starting it up regardless, but figured I should ask!
> > > > >
> > > > > Thanx, Paul
> > > > >
> > > > > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> > > > > > index 0b21e7a724e1..b446f73c530d 100644
> > > > > > --- a/kernel/sched/core.c
> > > > > > +++ b/kernel/sched/core.c
> > > > > > @@ -1669,6 +1669,7 @@ void sched_ttwu_pending(void)
> > > > > > while (llist) {
> > > > > > p = llist_entry(llist, struct task_struct, wake_entry);
> > > > > > llist = llist_next(llist);
> > > > > > + trace_printk("waking %d\n", p->pid);
> > > > > > ttwu_do_activate(rq, p, 0);
> > > > > > }
> > > > > >
> > > > > > @@ -1719,6 +1720,7 @@ static void ttwu_queue_remote(struct task_struct *p, int cpu)
> > > > > > struct rq *rq = cpu_rq(cpu);
> > > > > >
> > > > > > if (llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)) {
> > > > > > + trace_printk("queued %d for waking on %d\n", p->pid, cpu);
> > > > > > if (!set_nr_if_polling(rq->idle))
> > > > > > smp_send_reschedule(cpu);
> > > > > > else
> > > > > > @@ -5397,10 +5399,17 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
> > > > > > migrate_tasks(rq);
> > > > > > BUG_ON(rq->nr_running != 1); /* the migration thread */
> > > > > > raw_spin_unlock_irqrestore(&rq->lock, flags);
> > > > > > +
> > > > > > + /* really bad m'kay */
> > > > > > + WARN_ON(!llist_empty(&rq->wake_list));
> > > > > > +
> > > > > > break;
> > > > > >
> > > > > > case CPU_DEAD:
> > > > > > calc_load_migrate(rq);
> > > > > > +
> > > > > > + /* more bad */
> > > > > > + WARN_ON(!llist_empty(&rq->wake_list));
> > > > > > break;
> > > > > > #endif
> > > > > > }
> > > > > >
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-03-31 15:42 ` Paul E. McKenney
@ 2016-04-03 8:18 ` Paul E. McKenney
2016-05-06 6:25 ` Ross Green
0 siblings, 1 reply; 79+ messages in thread
From: Paul E. McKenney @ 2016-04-03 8:18 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Mathieu Desnoyers, Chatre, Reinette, Jacob Pan, Josh Triplett,
Ross Green, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Thu, Mar 31, 2016 at 08:42:55AM -0700, Paul E. McKenney wrote:
> On Wed, Mar 30, 2016 at 07:55:47AM -0700, Paul E. McKenney wrote:
> > On Tue, Mar 29, 2016 at 06:49:08AM -0700, Paul E. McKenney wrote:
> > > On Mon, Mar 28, 2016 at 05:28:14PM -0700, Paul E. McKenney wrote:
> > > > On Mon, Mar 28, 2016 at 05:25:18PM -0700, Paul E. McKenney wrote:
> > > > > On Mon, Mar 28, 2016 at 06:08:41AM -0700, Paul E. McKenney wrote:
> > > > > > On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
> > > > > > > On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
> > > > >
> > > > > [ . . . ]
> > > > >
> > > > > > > > OK, so I should instrument migration_call() if I get the repro rate up?
> > > > > > >
> > > > > > > Can do, maybe try the below first. (yes I know how long it all takes :/)
> > > > > >
> > > > > > OK, will run this today, then run calibration for last night's run this
> > > > > > evening.
> > >
> > > And of 18 two-hour runs, there were five failures, or about 28%.
> > > That said, I don't have even one significant digit on the failure rate,
> > > as 5 of 18 is within the 95% confidence limits for a failure probability
> > > as low as 12.5% and as high as 47%.
> >
> > And after last night's run, this is narrowed down to between 23% and 38%,
> > which is close enough. Average is 30%, 18 failures in 60 runs.
> >
> > Next step is to test Peter's patch some more. Might take a couple of
> > night's worth of runs to get statistical significance. After which
> > it will be time to rebase to 4.6-rc1.
>
> And the first night was not so good: 6 failures out of 24 runs. Adding
> this to the 1-of-10 earlier gets 7 failures of 34. Here are how things
> stack up given the range of base failure estimates:
>
> Low 95% bound of 23%: 84% confidence.
>
> Actual measurement of 30%: 92% confidence.
>
> High 95% bound of 38%: 98% confidence.
>
> So there is still some chance that Peter's patch is helping. I will
> run for one more evening, after which it will be time to move forward
> to 4.6-rc1.
And no luck reducing bounds. However, moving to 4.6-rc1 did get some
of the trace_printk() to print. The ftrace_dump()s resulted in RCU
CPU stall warnings, and the dumps were truncated due to test timeouts
in my scripting. (I need to make my scripts more patient when they
see an ftrace dump in progress, I guess.)
Here are the results:
http://www2.rdrop.com/users/paulmck/submission/TREE03.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.1.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.2.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.3.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.4.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.5.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.6.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.7.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.8.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.9.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.11.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.12.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.13.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.14.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.15.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.16.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.17.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.18.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.19.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.20.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.21.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.22.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.23.console.log.tgz
http://www2.rdrop.com/users/paulmck/submission/TREE03.24.console.log.tgz
The config is here:
http://www2.rdrop.com/users/paulmck/submission/config.tgz
More runs to measure 4.6-rc1 base error rate...
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-04-03 8:18 ` Paul E. McKenney
@ 2016-05-06 6:25 ` Ross Green
2016-05-07 15:25 ` Paul E. McKenney
0 siblings, 1 reply; 79+ messages in thread
From: Ross Green @ 2016-05-06 6:25 UTC (permalink / raw)
To: Paul McKenney
Cc: Peter Zijlstra, Mathieu Desnoyers, Chatre, Reinette, Jacob Pan,
Josh Triplett, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
[-- Attachment #1: Type: text/plain, Size: 4842 bytes --]
On Sun, Apr 3, 2016 at 6:18 PM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> On Thu, Mar 31, 2016 at 08:42:55AM -0700, Paul E. McKenney wrote:
>> On Wed, Mar 30, 2016 at 07:55:47AM -0700, Paul E. McKenney wrote:
>> > On Tue, Mar 29, 2016 at 06:49:08AM -0700, Paul E. McKenney wrote:
>> > > On Mon, Mar 28, 2016 at 05:28:14PM -0700, Paul E. McKenney wrote:
>> > > > On Mon, Mar 28, 2016 at 05:25:18PM -0700, Paul E. McKenney wrote:
>> > > > > On Mon, Mar 28, 2016 at 06:08:41AM -0700, Paul E. McKenney wrote:
>> > > > > > On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
>> > > > > > > On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
>> > > > >
>> > > > > [ . . . ]
>> > > > >
>> > > > > > > > OK, so I should instrument migration_call() if I get the repro rate up?
>> > > > > > >
>> > > > > > > Can do, maybe try the below first. (yes I know how long it all takes :/)
>> > > > > >
>> > > > > > OK, will run this today, then run calibration for last night's run this
>> > > > > > evening.
>> > >
>> > > And of 18 two-hour runs, there were five failures, or about 28%.
>> > > That said, I don't have even one significant digit on the failure rate,
>> > > as 5 of 18 is within the 95% confidence limits for a failure probability
>> > > as low as 12.5% and as high as 47%.
>> >
>> > And after last night's run, this is narrowed down to between 23% and 38%,
>> > which is close enough. Average is 30%, 18 failures in 60 runs.
>> >
>> > Next step is to test Peter's patch some more. Might take a couple of
>> > night's worth of runs to get statistical significance. After which
>> > it will be time to rebase to 4.6-rc1.
>>
>> And the first night was not so good: 6 failures out of 24 runs. Adding
>> this to the 1-of-10 earlier gets 7 failures of 34. Here are how things
>> stack up given the range of base failure estimates:
>>
>> Low 95% bound of 23%: 84% confidence.
>>
>> Actual measurement of 30%: 92% confidence.
>>
>> High 95% bound of 38%: 98% confidence.
>>
>> So there is still some chance that Peter's patch is helping. I will
>> run for one more evening, after which it will be time to move forward
>> to 4.6-rc1.
>
> And no luck reducing bounds. However, moving to 4.6-rc1 did get some
> of the trace_printk() to print. The ftrace_dump()s resulted in RCU
> CPU stall warnings, and the dumps were truncated due to test timeouts
> in my scripting. (I need to make my scripts more patient when they
> see an ftrace dump in progress, I guess.)
>
> Here are the results:
>
> http://www2.rdrop.com/users/paulmck/submission/TREE03.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.1.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.2.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.3.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.4.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.5.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.6.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.7.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.8.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.9.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.11.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.12.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.13.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.14.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.15.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.16.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.17.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.18.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.19.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.20.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.21.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.22.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.23.console.log.tgz
> http://www2.rdrop.com/users/paulmck/submission/TREE03.24.console.log.tgz
>
> The config is here:
>
> http://www2.rdrop.com/users/paulmck/submission/config.tgz
>
> More runs to measure 4.6-rc1 base error rate...
>
> Thanx, Paul
>
G'day Paul,
Thought i would update a few runs with the linux-4.6-rc kernels.
I have attached log outputs through dmesg showing rcu_preempt stall warnings.
Thought it might be interesting for someone else to look at.
Currently running linux-4.6-rc6 in testing.
Regards,
Ross Green
[-- Attachment #2: dmesg-4.6-rc5 --]
[-- Type: application/octet-stream, Size: 11050 bytes --]
[114645.371795] INFO: rcu_preempt self-detected stall on CPU
[114645.377014] INFO: rcu_preempt self-detected stall on CPU
[114645.377044] 0-...: (1 ticks this GP) idle=d05/1/0 softirq=1154083/1154083 fqs=0
[114645.377044]
[114645.377044] (t=9773 jiffies g=354984 c=354983 q=188)
[114645.377075] rcu_preempt kthread starved for 9773 jiffies! g354984 c354983 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[114645.377075] rcu_preempt S
[114645.377075] c07b8640
[114645.377075] 0 7 2 0x00000000
[114645.377075] Backtrace:
[114645.377075] [<c07b8478>] (__schedule) from [<c07b89bc>] (schedule+0x54/0xc4)
[114645.377136] r10:c0c02518
[114645.377136] r9:00000001
[114645.377136] r8:00ae53f4
[114645.377136] r7:c0c02100
[114645.377136] r6:ef09dedc
[114645.377136] r5:ef7b7400
[114645.377136] r4:ef09c000
[114645.377166] [<c07b8968>] (schedule) from [<c07bb7ec>] (schedule_timeout+0x118/0x1ac)
[114645.377166] r5:ef7b7400
[114645.377166] r4:ef7b7400
[114645.377197] [<c07bb6d4>] (schedule_timeout) from [<c017fe18>] (rcu_gp_kthread+0x644/0x994)
[114645.377197] r8:c0c02100
[114645.377197] r7:c0c127d0
[114645.377197] r6:c0c127dc
[114645.377197] r5:c0c12640
[114645.377197] r4:00000000
[114645.377258] [<c017f7d4>] (rcu_gp_kthread) from [<c01499dc>] (kthread+0xe4/0xfc)
[114645.377258] r7:c017f7d4
[114645.377288] [<c01498f8>] (kthread) from [<c0107b98>] (ret_from_fork+0x14/0x3c)
[114645.377288] r7:00000000
[114645.377288] r6:00000000
[114645.377288] r5:c01498f8
[114645.377319] r4:ef044380
[114645.377319] Task dump for CPU 0:
[114645.377319] swapper/0 R
[114645.377319] running
[114645.377319] 0 0 0 0x00000000
[114645.377349] Backtrace:
[114645.377349] [<c010bfa8>] (dump_backtrace) from [<c010c1a4>] (show_stack+0x18/0x1c)
[114645.377349] r7:c0c02518
[114645.377380] r6:800f0193
[114645.377380] r5:00000000
[114645.377380] r4:c0c05180
[114645.377410] [<c010c18c>] (show_stack) from [<c01541a8>] (sched_show_task+0xbc/0x110)
[114645.377410] [<c01540ec>] (sched_show_task) from [<c0156604>] (dump_cpu_task+0x40/0x44)
[114645.377410] r5:c0c12640
[114645.377441] r4:00000000
[114645.377441] [<c01565c4>] (dump_cpu_task) from [<c017cabc>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[114645.377441] r5:c0c12640
[114645.377471] r4:00000001
[114645.377471] [<c017ca20>] (rcu_dump_cpu_stacks) from [<c0180a54>] (rcu_check_callbacks+0x500/0x8e4)
[114645.377471] r9:c0c12640
[114645.377471] r8:c0c02634
[114645.377502] r7:2ec64000
[114645.377502] r6:c0b4b640
[114645.377502] r5:c0c12640
[114645.377502] r4:ef7af640
[114645.377532] [<c0180554>] (rcu_check_callbacks) from [<c0183d68>] (update_process_times+0x40/0x6c)
[114645.377532] r10:c0195864
[114645.377532] r9:00000001
[114645.377532] r8:ef7abc8c
[114645.377532] r7:00006844
[114645.377532] r6:ef320a06
[114645.377532] r5:00000000
[114645.377563] r4:c0c05180
[114645.377563] [<c0183d28>] (update_process_times) from [<c0195860>] (tick_sched_handle+0x50/0x54)
[114645.377593] r5:c0c01f10
[114645.377593] r4:ef7abe80
[114645.377593] [<c0195810>] (tick_sched_handle) from [<c01958b4>] (tick_sched_timer+0x50/0x94)
[114645.377624] [<c0195864>] (tick_sched_timer) from [<c01847ac>] (__hrtimer_run_queues+0x110/0x1a4)
[114645.377624] r7:00000000
[114645.377624] r6:ef7abc80
[114645.377624] r5:ef7abe80
[114645.377624] r4:ef7abc40
[114645.377655] [<c018469c>] (__hrtimer_run_queues) from [<c0184e34>] (hrtimer_interrupt+0xac/0x1f8)
[114645.377655] r10:ef7abcb8
[114645.377655] r9:ef7abcd8
[114645.377655] r8:ef7abc54
[114645.377655] r7:ef7abcf8
[114645.377685] r6:ffffffff
[114645.377685] r5:00000003
[114645.377685] r4:ef7abc40
[114645.377716] [<c0184d88>] (hrtimer_interrupt) from [<c010f20c>] (twd_handler+0x38/0x48)
[114645.377716] r10:efffc080
[114645.377716] r9:fa241100
[114645.377716] r8:00000011
[114645.377716] r7:ef02a340
[114645.377716] r6:c0c027a0
[114645.377716] r5:ef005cc0
[114645.377746] r4:00000001
[114645.377746] [<c010f1d4>] (twd_handler) from [<c0176f7c>] (handle_percpu_devid_irq+0x74/0x8c)
[114645.377746] r5:ef005cc0
[114645.377746] r4:ef7b1a80
[114645.377807] [<c0176f08>] (handle_percpu_devid_irq) from [<c0172954>] (generic_handle_irq+0x2c/0x3c)
[114645.377807] r9:fa241100
[114645.377807] r8:ef008000
[114645.377807] r7:00000001
[114645.377807] r6:00000000
[114645.377807] r5:00000000
[114645.377807] r4:c0b48460
[114645.377838] [<c0172928>] (generic_handle_irq) from [<c0172c4c>] (__handle_domain_irq+0x64/0xbc)
[114645.377838] [<c0172be8>] (__handle_domain_irq) from [<c01014d4>] (gic_handle_irq+0x50/0x90)
[114645.377868] r9:fa241100
[114645.377868] r8:fa240100
[114645.377868] r7:c0c01f10
[114645.377868] r6:fa24010c
[114645.377868] r5:c0c027a0
[114645.377868] r4:c0c205c8
[114645.377899] [<c0101484>] (gic_handle_irq) from [<c010ccd4>] (__irq_svc+0x54/0x90)
[114645.377899] Exception stack(0xc0c01f10 to 0xc0c01f58)
[114645.377899] 1f00: 00000000 ef7ab3b8 fe600000 00000000
[114645.377929] 1f20: c0c00000 c0c0249c c0c3efa7 00000001 c0c3efa7 c0c024ec efffc080 c0c01f6c
[114645.377929] 1f40: c0c01f4c c0c01f60 c0120fe0 c0108cc0 600f0113 ffffffff
[114645.377929] r9:c0c024ec
[114645.377929] r8:c0c3efa7
[114645.377929] r7:c0c01f44
[114645.377929] r6:ffffffff
[114645.377960] r5:600f0113
[114645.377960] r4:c0108cc0
[114645.377960] [<c0108c98>] (arch_cpu_idle) from [<c016958c>] (default_idle_call+0x28/0x34)
[114645.377960] [<c0169564>] (default_idle_call) from [<c01696b8>] (cpu_startup_entry+0x120/0x16c)
[114645.378021] [<c0169598>] (cpu_startup_entry) from [<c07b7be4>] (rest_init+0x8c/0x90)
[114645.378021] r7:ffffffff
[114645.378021] r4:00000002
[114645.378051] [<c07b7b58>] (rest_init) from [<c0b00cd0>] (start_kernel+0x338/0x344)
[114645.378051] r5:c0c41000
[114645.378051] r4:00000000
[114645.378051] [<c0b00998>] (start_kernel) from [<8000807c>] (0x8000807c)
[114645.378082] Task dump for CPU 1:
[114645.378082] swapper/1 R
[114645.378082] running
[114645.378082] 0 0 1 0x00000000
[114645.378082] Backtrace:
[114645.378082] Backtrace aborted due to bad frame pointer <ef0a5f9c>
[114645.827606] 1-...: (1 ticks this GP) idle=cad/1/0 softirq=793621/793621 fqs=0
[114645.827606] (t=9773 jiffies g=354984 c=354983 q=188)
[114645.851715] rcu_preempt kthread starved for 9773 jiffies! g354984 c354983 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[114645.856933] rcu_preempt S c07b8640 0 7 2 0x00000000
[114645.862304] Backtrace:
[114645.871582] [<c07b8478>] (__schedule) from [<c07b89bc>] (schedule+0x54/0xc4)
[114645.879364] r10:c0c02518 r9:00000001 r8:00ae53f4 r7:c0c02100 r6:ef09dedc r5:ef7b7400
[114645.882049] r4:ef09c000
[114645.890563] [<c07b8968>] (schedule) from [<c07bb7ec>] (schedule_timeout+0x118/0x1ac)
[114645.898834] r5:ef7b7400 r4:ef7b7400
[114645.902740] [<c07bb6d4>] (schedule_timeout) from [<c017fe18>] (rcu_gp_kthread+0x644/0x994)
[114645.903289] r8:c0c02100 r7:c0c127d0 r6:c0c127dc r5:c0c12640 r4:00000000
[114645.918792] [<c017f7d4>] (rcu_gp_kthread) from [<c01499dc>] (kthread+0xe4/0xfc)
[114645.918792] r7:c017f7d4
[114645.927246] [<c01498f8>] (kthread) from [<c0107b98>] (ret_from_fork+0x14/0x3c)
[114645.930114] r7:00000000 r6:00000000 r5:c01498f8 r4:ef044380
[114645.943237] Task dump for CPU 1:
[114645.943237] swapper/1 R running 0 0 1 0x00000000
[114645.953552] Backtrace:
[114645.953552] [<c010bfa8>] (dump_backtrace) from [<c010c1a4>] (show_stack+0x18/0x1c)
[114645.963653] r7:c0c02518 r6:80080193 r5:00000001 r4:ef07b700
[114645.970184] [<c010c18c>] (show_stack) from [<c01541a8>] (sched_show_task+0xbc/0x110)
[114645.978759] [<c01540ec>] (sched_show_task) from [<c0156604>] (dump_cpu_task+0x40/0x44)
[114645.986419] r5:c0c12640 r4:00000001
[114645.987854] [<c01565c4>] (dump_cpu_task) from [<c017cabc>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[114645.987854] r5:c0c12640 r4:00000002
[114646.003845] [<c017ca20>] (rcu_dump_cpu_stacks) from [<c0180a54>] (rcu_check_callbacks+0x500/0x8e4)
[114646.007293] r9:c0c12640 r8:c0c02634 r7:2ec70000 r6:c0b4b640 r5:c0c12640 r4:ef7bb640
[114646.016937] [<c0180554>] (rcu_check_callbacks) from [<c0183d68>] (update_process_times+0x40/0x6c)
[114646.031219] r10:c0195864 r9:00000001 r8:ef7b7c8c r7:00006844 r6:eee17aae r5:00000000
[114646.039611] r4:ef07b700
[114646.039611] [<c0183d28>] (update_process_times) from [<c0195860>] (tick_sched_handle+0x50/0x54)
[114646.051696] r5:ef0a5f58 r4:ef7b7e80
[114646.051696] [<c0195810>] (tick_sched_handle) from [<c01958b4>] (tick_sched_timer+0x50/0x94)
[114646.051696] [<c0195864>] (tick_sched_timer) from [<c01847ac>] (__hrtimer_run_queues+0x110/0x1a4)
[114646.073913] r7:00000000 r6:ef7b7c80 r5:ef7b7e80 r4:ef7b7c40
[114646.079803] [<c018469c>] (__hrtimer_run_queues) from [<c0184e34>] (hrtimer_interrupt+0xac/0x1f8)
[114646.079803] r10:ef7b7cb8 r9:ef7b7cd8 r8:ef7b7c54 r7:ef7b7cf8 r6:ffffffff r5:00000003
[114646.097808] r4:ef7b7c40
[114646.097808] [<c0184d88>] (hrtimer_interrupt) from [<c010f20c>] (twd_handler+0x38/0x48)
[114646.109069] r10:00000000 r9:fa241100 r8:00000011 r7:ef02a340 r6:c0c027a0 r5:ef005cc0
[114646.109069] r4:00000001
[114646.109069] [<c010f1d4>] (twd_handler) from [<c0176f7c>] (handle_percpu_devid_irq+0x74/0x8c)
[114646.129272] r5:ef005cc0 r4:ef7bda80
[114646.129272] [<c0176f08>] (handle_percpu_devid_irq) from [<c0172954>] (generic_handle_irq+0x2c/0x3c)
[114646.136932] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c0b48460
[114646.149230] [<c0172928>] (generic_handle_irq) from [<c0172c4c>] (__handle_domain_irq+0x64/0xbc)
[114646.149230] [<c0172be8>] (__handle_domain_irq) from [<c01014d4>] (gic_handle_irq+0x50/0x90)
[114646.169219] r9:fa241100 r8:fa240100 r7:ef0a5f58 r6:fa24010c r5:c0c027a0 r4:c0c205c8
[114646.169219] [<c0101484>] (gic_handle_irq) from [<c010ccd4>] (__irq_svc+0x54/0x90)
[114646.185699] Exception stack(0xef0a5f58 to 0xef0a5fa0)
[114646.185699] 5f40: 00000000 ef7b73b8
[114646.199890] 5f60: fe600000 00000000 ef0a4000 c0c0249c c0c3efa7 00000001 c0c3efa7 c0c024ec
[114646.206939] 5f80: 00000000 ef0a5fb4 ef0a5f94 ef0a5fa8 c0120fe0 c0108cc0 60080113 ffffffff
[114646.206939] r9:c0c024ec r8:c0c3efa7 r7:ef0a5f8c r6:ffffffff r5:60080113 r4:c0108cc0
[114646.225708] [<c0108c98>] (arch_cpu_idle) from [<c016958c>] (default_idle_call+0x28/0x34)
[114646.226928] [<c0169564>] (default_idle_call) from [<c01696b8>] (cpu_startup_entry+0x120/0x16c)
[114646.243591] [<c0169598>] (cpu_startup_entry) from [<c010e27c>] (secondary_start_kernel+0x178/0x184)
[114646.248229] r7:c0c41288 r4:c0c15728
[114646.257141] [<c010e104>] (secondary_start_kernel) from [<801015ac>] (0x801015ac)
[114646.257141] r5:00000051 r4:af08806a
#
[-- Attachment #3: dmesg-4.0.0-rc4 --]
[-- Type: application/octet-stream, Size: 128303 bytes --]
Welcome to minicom 2.6.1
OPTIONS: I18n
Port /dev/ttyUSB0
Press CTRL-A Z for help on special keys
#
#
#
#
#
# uptime
20:10:36 up 6 days, 21:08, load average: 0.14, 0.10, 0.12
#
#
#
# dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 4.0.0-rc4-panda (rfg@red.dwarf) (gcc version 4.9.2 (Buildroot 2015.05-git-00229-gb9f39b2) ) #1 SMP P5
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] On node 0 totalpages: 261888
[ 0.000000] free_area_init_node: node 0, pgdat c08d9d00, node_mem_map eeff9000
[ 0.000000] Normal zone: 1520 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 194560 pages, LIFO batch:31
[ 0.000000] HighMem zone: 67328 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 10 pages/cpu @eefb0000 s11520 r8192 d21248 u40960
[ 0.000000] pcpu-alloc: s11520 r8192 d21248 u40960 alloc=10*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260368
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1028864K/1047552K available (6467K kernel code, 243K rwdata, 2048K rodata, 272K init, 282K bss, 18688K res)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0000000 - 0xff000000 ( 240 MB)
lowmem : 0xc0000000 - 0xef800000 ( 760 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc08590b4 (8517 kB)
.init : 0xc085a000 - 0xc089e000 ( 272 kB)
.data : 0xc089e000 - 0xc08daca0 ( 244 kB)
.bss : 0xc08daca0 - 0xc0921578 ( 283 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 ID prefetch enabled, offset 1 lines
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x7e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65536000000000ns
[ 0.000030] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.001647] Console: colour dummy device 80x30
[ 0.001678] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.090240] pid_max: default: 32768 minimum: 301
[ 0.090332] Security Framework initialized
[ 0.090362] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.090362] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.090942] Initializing cgroup subsys blkio
[ 0.090942] Initializing cgroup subsys devices
[ 0.090972] Initializing cgroup subsys freezer
[ 0.091003] CPU: Testing write buffer coherency: ok
[ 0.091217] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.091247] Setting up static identity map for 0x80656cf8 - 0x80656d50
[ 0.190216] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.190307] Brought up 2 CPUs
[ 0.190338] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.190338] CPU: All CPU(s) started in SVC mode.
[ 0.190856] devtmpfs: initialized
[ 0.191497] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.193115] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.194610] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.290618] xor: measuring software checksum speed
[ 0.390197] arm4regs : 1213.600 MB/sec
[ 0.490203] 8regs : 858.400 MB/sec
[ 0.590209] 32regs : 808.800 MB/sec
[ 0.590240] xor: using function: arm4regs (1213.600 MB/sec)
[ 0.590240] pinctrl core: initialized pinctrl subsystem
[ 0.608093] NET: Registered protocol family 16
[ 0.608886] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.616088] OMAP GPIO hardware version 0.1
[ 0.620574] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.621063] irq: no irq domain found for /ocp/pinmux@4a100040 !
[ 0.621429] irq: no irq domain found for /ocp/pinmux@4a100040 !
[ 0.621765] irq: no irq domain found for /ocp/pinmux@4a100040 !
[ 0.633056] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.633331] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.638916] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.638946] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.639923] OMAP DMA hardware revision 0.0
[ 0.850677] raid6: int32x1 103 MB/s
[ 1.020355] raid6: int32x2 139 MB/s
[ 1.190399] raid6: int32x4 145 MB/s
[ 1.360321] raid6: int32x8 160 MB/s
[ 1.360351] raid6: using algorithm int32x8 (160 MB/s)
[ 1.360351] raid6: using intx1 recovery algorithm
[ 1.381835] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 1.460357] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/pinmux@4a100040/pinmux_wl12xx_gpio, deferring e
[ 1.460357] platform wl12xx_vmmc: Driver reg-fixed-voltage requests probe deferral
[ 1.464172] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 1.464263] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 1.465209] SCSI subsystem initialized
[ 1.465515] usbcore: registered new interface driver usbfs
[ 1.465667] usbcore: registered new interface driver hub
[ 1.465789] usbcore: registered new device driver usb
[ 1.466766] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/pinmux@4a100040/pinmux_i2c1_pins, deferring probe
[ 1.466796] platform 48070000.i2c: Driver omap_i2c requests probe deferral
[ 1.466827] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/pinmux@4a100040/pinmux_i2c2_pins, deferring probe
[ 1.466857] platform 48072000.i2c: Driver omap_i2c requests probe deferral
[ 1.466888] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/pinmux@4a100040/pinmux_i2c3_pins, deferring probe
[ 1.466888] platform 48060000.i2c: Driver omap_i2c requests probe deferral
[ 1.466949] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/pinmux@4a100040/pinmux_i2c4_pins, deferring probe
[ 1.466949] platform 48350000.i2c: Driver omap_i2c requests probe deferral
[ 1.467224] Linux video capture interface: v2.00
[ 1.468078] Advanced Linux Sound Architecture Driver Initialized.
[ 1.469329] Switched to clocksource 32k_counter
[ 1.481506] NET: Registered protocol family 2
[ 1.482238] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 1.482330] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 1.482452] TCP: Hash tables configured (established 8192 bind 8192)
[ 1.482513] TCP: reno registered
[ 1.482543] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 1.482604] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 1.482788] NET: Registered protocol family 1
[ 1.483093] RPC: Registered named UNIX socket transport module.
[ 1.483093] RPC: Registered udp transport module.
[ 1.483093] RPC: Registered tcp transport module.
[ 1.483123] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.484985] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 1.487548] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 1.496215] NFS: Registering the id_resolver key type
[ 1.496276] Key type id_resolver registered
[ 1.496276] Key type id_legacy registered
[ 1.496307] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 1.496337] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 1.497497] ntfs: driver 2.1.31 [Flags: R/O].
[ 1.497802] fuse init (API version 7.23)
[ 1.499816] bounce: pool size: 64 pages
[ 1.499816] io scheduler noop registered
[ 1.499847] io scheduler deadline registered
[ 1.499877] io scheduler cfq registered (default)
[ 1.500732] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 1.500946] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 1.502471] 58000000.dss supply vdda_video not found, using dummy regulator
[ 1.502532] OMAP DSS rev 4.0
[ 1.504791] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 1.506317] omap_uart 4806a000.serial: no wakeirq for uart0
[ 1.506439] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 1.506958] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 1.507446] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 2.391906] console [ttyO2] enabled
[ 2.396087] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 2.406799] [drm] Initialized drm 1.1.0 20060810
[ 2.414428] loop: module loaded
[ 2.420043] usbcore: registered new interface driver smsc95xx
[ 2.426116] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 2.433013] ehci-omap: OMAP-EHCI Host Controller driver
[ 2.449432] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 2.455078] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 2.463165] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 2.489379] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 2.495758] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 2.502868] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.510437] usb usb1: Product: EHCI Host Controller
[ 2.515533] usb usb1: Manufacturer: Linux 4.0.0-rc4-panda ehci_hcd
[ 2.522003] usb usb1: SerialNumber: 4a064c00.ehci
[ 2.527526] hub 1-0:1.0: USB hub found
[ 2.531524] hub 1-0:1.0: 3 ports detected
[ 2.536376] usbcore: registered new interface driver cdc_wdm
[ 2.542449] usbcore: registered new interface driver usb-storage
[ 2.549163] i2c /dev entries driver
[ 2.552978] usbcore: registered new interface driver uvcvideo
[ 2.558959] USB Video Class driver (1.1.1)
[ 2.564392] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 2.571929] device-mapper: uevent: version 1.0.3
[ 2.577087] device-mapper: ioctl: 4.30.0-ioctl (2014-12-22) initialised: dm-devel@redhat.com
[ 2.586059] Driver 'mmcblk' needs updating - please use bus_type methods
[ 2.593719] omap_hsmmc 4809c000.mmc: unable to get vmmc regulator -517
[ 2.600616] platform 4809c000.mmc: Driver omap_hsmmc requests probe deferral
[ 2.608398] omap_hsmmc 480d5000.mmc: unable to get vmmc regulator -517
[ 2.615295] platform 480d5000.mmc: Driver omap_hsmmc requests probe deferral
[ 2.623657] hidraw: raw HID events driver (C) Jiri Kosina
[ 2.629699] usbcore: registered new interface driver usbhid
[ 2.635498] usbhid: USB HID core driver
[ 2.640045] emif 4c000000.emif: emif_probe: device configured with addr = f00a8000 and IRQ247
[ 2.649230] emif 4d000000.emif: emif_probe: device configured with addr = f00aa000 and IRQ248
[ 2.660217] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 2.668060] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 2.675079] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 2.682708] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 2.688323] TCP: cubic registered
[ 2.691833] Initializing XFRM netlink socket
[ 2.696289] NET: Registered protocol family 17
[ 2.701202] Key type dns_resolver registered
[ 2.705780] twl: not initialized
[ 2.709136] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 2.717529] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 2.725921] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 2.734405] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 2.742797] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 2.751190] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 2.759552] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 2.767944] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 2.775115] omap2_set_init_voltage: unable to set vdd_mpu
[ 2.780792] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 2.788055] omap2_set_init_voltage: unable to set vdd_core
[ 2.794036] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 2.801239] omap2_set_init_voltage: unable to set vdd_iva
[ 2.807708] Power Management for TI OMAP4+ devices.
[ 2.812835] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 2.819976] ThumbEE CPU extension supported.
[ 2.819976] Registering SWP/SWPB emulation handler
[ 2.829528] SmartReflex Class3 initialized
[ 2.836517] Btrfs loaded
[ 2.839508] dmm 4e000000.dmm: initialized all PAT entries
[ 2.847991] platform omapdrm.0: Driver omapdrm requests probe deferral
[ 2.856323] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 2.856445] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 2.872467] twl 0-0048: PIH (irq 340) nested IRQs
[ 2.878784] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 2.887512] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 2.907135] twl6040 0-004b: clk32k is not handled
[ 2.913116] twl6040 0-004b: Failed to read revision register: -121
[ 2.919372] twl6040: probe of 0-004b failed with error -121
[ 2.925628] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 2.932617] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 2.939300] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 2.945953] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.040130] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.046508] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.055541] hub 1-1:1.0: USB hub found
[ 3.059661] hub 1-1:1.0: 5 ports detected
[ 3.119445] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.127593] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.134704] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 3.134704] platform omapdrm.0: Driver omapdrm requests probe deferral
[ 3.150238] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2015-03-16 12:02:15 UTC (1426507335)
[ 3.156829] mmc0: host does not support reading read-only switch, assuming write-enable
[ 3.158630] mmc0: new high speed SDHC card at address aaaa
[ 3.159057] mmcblk0: mmc0:aaaa SU16G 14.8 GiB
[ 3.170593] mmcblk0: p1 p2 p3 p4
[ 3.171783] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.171783] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.171783] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 3.171783] platform omapdrm.0: Driver omapdrm requests probe deferral
[ 3.176757] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 3.186950] mmc1: queuing unknown CIS tuple 0x91 (3 bytes)
[ 3.187957] mmc1: new SDIO card at address 0001
[ 3.230621] sr_init: No PMIC hook to init smartreflex
[ 3.236145] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 3.244323] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 3.244323] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.244720] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.244750] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 3.244750] platform omapdrm.0: Driver omapdrm requests probe deferral
[ 3.282043] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.290100] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 3.290100] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.290100] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 3.290100] platform omapdrm.0: Driver omapdrm requests probe deferral
[ 3.319519] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.330291] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.337432] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 3.345001] VUSB: disabling
[ 3.345001] platform omapdrm.0: Driver omapdrm requests probe deferral
[ 3.355285] VANA: disabling
[ 3.358673] VDAC: disabling
[ 3.363433] vwl1271: disabling
[ 3.366699] ALSA device list:
[ 3.369934] No soundcards found.
[ 3.375091] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 3.384368] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 3.397338] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 3.405212] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 3.416015] devtmpfs: mounted
[ 3.416015] Freeing unused kernel memory: 272K (c085a000 - c089e000)
[ 3.500793] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 3.644775] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 3.652038] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.662658] smsc95xx v1.0.4
[ 3.707702] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 3.718383] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 3.755859] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, c2:06:9e:f9:76:af
[ 3.768585] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.780822] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.790313] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 3.801116] platform omapdrm.0: Driver omapdrm requests probe deferral
[ 3.808715] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.820098] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.827239] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 3.859436] random: dd urandom read with 21 bits of entropy available
[ 7.579650] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 17.472137] Bluetooth: Core ver 2.20
[ 17.476104] NET: Registered protocol family 31
[ 17.480773] Bluetooth: HCI device and connection manager initialized
[ 17.487487] Bluetooth: HCI socket layer initialized
[ 17.492645] Bluetooth: L2CAP socket layer initialized
[ 17.493103] Bluetooth: SCO socket layer initialized
[ 23.112335] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 23.123748] NFSD: starting 90-second grace period (net c08d4640)
[ 52.674438] cfg80211: Calling CRDA to update world regulatory domain
[ 52.883453] platform omapdrm.0: Driver omapdrm requests probe deferral
[ 52.890502] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 52.898681] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 52.906036] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 52.914031] platform omapdrm.0: Driver omapdrm requests probe deferral
[ 52.921356] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 52.929534] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 52.936584] platform sound: Driver omap-abe-twl6040 requests probe deferral
[ 53.301391] wlcore: loaded
[ 57.846588] random: nonblocking pool is initialized
[ 69.812408] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 73.479980] wlan0: authenticate with 90:f6:52:81:ee:70
[ 73.495819] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 73.512573] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 73.529174] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 73.545440] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 77.115020] wlan0: authenticate with 90:f6:52:81:ee:70
[ 77.152679] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 77.161132] wlan0: authenticated
[ 77.169403] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 77.182342] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=1)
[ 77.200286] wlan0: associated
[ 77.249053] wlcore: Association completed.
[ 143.258544] NFSD: Unable to end grace period: -110
[25959.760040] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=5211 jiffies, g=81847, c=81846, q=71)
[25959.771362] All QSes seen, last rcu_preempt kthread activity 5211 (2565987-2560776), jiffies_till_next_fqs=1
[25959.781494] swapper/1 R running 0 0 1 0x00000000
[25959.788269] Backtrace:
[25959.790802] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[25959.798614] r6:c08afc40 r5:00000001 r4:ee876f80 r3:00000000
[25959.803894] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[25959.812164] [<c005a174>] (sched_show_task) from [<c00806d0>] (rcu_check_callbacks+0x920/0x938)
[25959.821716] r5:c089c880 r4:eefbc880
[25959.824920] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[25959.834808] r10:00000001 r9:eefba368 r8:00000000 r7:0000179c r6:4100d509 r5:00000000
[25959.842926] r4:ee876f80
[25959.845306] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[25959.855438] r5:ee89ff70 r4:eefba5f8
[25959.859161] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[25959.867950] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[25959.877563] r7:c00936a8 r6:eefba368 r5:eefba3a0 r4:eefba5f8
[25959.883117] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[25959.892333] r7:0000179c r6:4100d509 r5:eefba368 r4:eefba368
[25959.898193] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[25959.907135] r10:00000000 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[25959.915344] r4:00000001
[25959.917968] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[25959.926818] r4:eefbee40 r3:c00156d0
[25959.930297] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[25959.939880] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[25959.947540] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[25959.956878] r4:c089ab80 r3:00000159
[25959.960815] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[25959.969665] r8:fa240100 r7:ee89ff70 r6:c08a0794 r5:0000000d r4:fa24010c r3:ee89ff70
[25959.977783] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[25959.977783] Exception stack(0xee89ff70 to 0xee89ffb8)
[25959.987121] ff60: 00000000 00000000 01b5a23c c002a304
[25959.999420] ff80: ee89e000 c08a0494 c065c484 c08daaa1 c08daaa1 c08a04e0 00000000 ee89ffc4
[25959.999420] ffa0: ee89ffb8 ee89ffb8 c002a0d0 c000fe1c a00c0113 ffffffff
[25960.014862] r8:c08daaa1 r7:ee89ffa4 r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[25960.014862] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[25960.031616] [<c006afd0>] (cpu_startup_entry) from [<c00147f4>] (secondary_start_kernel+0x130/0x13c)
[25960.037109] r7:c08daf80 r3:ee89e000
[25960.037109] [<c00146c4>] (secondary_start_kernel) from [<800087e4>] (0x800087e4)
[25960.047119] r5:00000015 r4:ae88406a
[25960.056274] rcu_preempt kthread starved for 5211 jiffies!
[54108.938751] INFO: rcu_preempt self-detected stall on CPU
[54108.938751] INFO: rcu_preempt detected stalls on CPUs/tasks:
[54108.938781] {
[54108.938781] 0
[54108.938781] }
[54108.938781] (detected by 1, t=4028 jiffies, g=170176, c=170175, q=107)
[54108.938781] Task dump for CPU 0:
[54108.938781] swapper/0 R
[54108.938781] running
[54108.938812] 0 0 0 0x00000000
[54108.938812] Backtrace:
[54108.938812] [<c089ff70>] (0xc089ff70) from [<eefc6800>] (0xeefc6800)
[54108.938842] Backtrace aborted due to bad frame pointer <c08daaa1>
[54108.938842] rcu_preempt kthread starved for 4028 jiffies!
[54108.986999] {
[54108.986999] 0} (t=4032 jiffies g=170176 c=170175 q=109)
[54108.991851] Task dump for CPU 0:
[54108.991851] swapper/0 R running 0 0 0 0x00000002
[54108.991851] Backtrace:
[54109.005615] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[54109.013519] r6:800c0193 r5:00000000 r4:c08a2ea8 r3:00000000
[54109.013519] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[54109.013519] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[54109.027557] r5:c08afc40 r4:00000000
[54109.027557] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[54109.048187] r4:00000001 r3:00000001
[54109.048187] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[54109.048187] r8:c08a0510 r7:2e716000 r6:c08afc40 r5:c089c880 r4:eefb2880 r3:00521b20
[54109.048187] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[54109.078674] r10:00000001 r9:eefb0368 r8:00000000 r7:00003136 r6:36517855 r5:00000000
[54109.078674] r4:c08a2ea8
[54109.089538] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[54109.089538] r5:c089ff28 r4:eefb05f8
[54109.103088] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[54109.103088] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[54109.121612] r7:c00936a8 r6:eefb0368 r5:eefb03a0 r4:eefb05f8
[54109.121612] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[54109.136810] r7:00003136 r6:36517855 r5:eefb0368 r4:eefb0368
[54109.136810] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[54109.151000] r10:eefc6800 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[54109.159210] r4:00000001
[54109.159210] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[54109.159210] r4:eefb4e40 r3:c00156d0
[54109.170684] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[54109.183868] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[54109.183868] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[54109.183868] r4:c089ab80 r3:00000159
[54109.204803] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[54109.213531] r8:fa240100 r7:c089ff28 r6:c08a0794 r5:0000000d r4:fa24010c r3:c089ff28
[54109.213531] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[54109.221649] Exception stack(0xc089ff28 to 0xc089ff70)
[54109.229461] ff20: 00000000 00000000 0364a108 c002a304 c089e000 c08a0494
[54109.229461] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[54109.251800] ff60: c002a0d0 c000fe1c a00c0113 ffffffff
[54109.257080] r8:c08daaa1 r7:c089ff5c r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[54109.257080] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[54109.257080] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[54109.281921] r7:ffffffff r3:c089e000
[54109.285675] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[54109.293487] r4:c08a05a8 r3:c089e000
[54109.297241] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[69467.864562] INFO: rcu_preempt self-detected stall on CPU
[69467.864593] INFO: rcu_preempt detected stalls on CPUs/tasks:
[69467.864593] {
[69467.864593] 0
[69467.864593] }
[69467.864593] (detected by 1, t=3434 jiffies, g=218453, c=218452, q=200)
[69467.864593] Task dump for CPU 0:
[69467.864593] swapper/0 R
[69467.864624] running
[69467.864624] 0 0 0 0x00000000
[69467.864624] Backtrace:
[69467.864624] [<c089ff70>] (0xc089ff70) from [<eefc6800>] (0xeefc6800)
[69467.864654] Backtrace aborted due to bad frame pointer <c08daaa1>
[69467.864654] rcu_preempt kthread starved for 3433 jiffies!
[69467.912811] {
[69467.914550] 0} (t=5 jiffies g=218454 c=218453 q=199)
[69467.914550] Task dump for CPU 0:
[69467.914550] swapper/0 R running 0 0 0 0x00000002
[69467.928558] Backtrace:
[69467.928558] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[69467.928558] r6:800c0193 r5:00000000 r4:c08a2ea8 r3:00000000
[69467.928558] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[69467.928558] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[69467.928558] r5:c08afc40 r4:00000000
[69467.928558] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[69467.973724] r4:00000001 r3:00000001
[69467.973724] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[69467.973724] r8:c08a0510 r7:2e716000 r6:c08afc40 r5:c089c880 r4:eefb2880 r3:00698aae
[69467.973724] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[69468.004211] r10:00000001 r9:eefb0368 r8:00000000 r7:00003f2e r6:39c4a9ec r5:00000000
[69468.004211] r4:c08a2ea8
[69468.004211] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[69468.015075] r5:c089ff28 r4:eefb05f8
[69468.028625] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[69468.028625] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[69468.047149] r7:c00936a8 r6:eefb0368 r5:eefb03a0 r4:eefb05f8
[69468.047149] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[69468.062347] r7:00003f2e r6:39c4a9ec r5:eefb0368 r4:eefb0368
[69468.062347] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[69468.062347] r10:eefc6800 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[69468.084747] r4:00000001
[69468.084747] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[69468.096221] r4:eefb4e40 r3:c00156d0
[69468.096221] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[69468.109405] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[69468.109405] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[69468.109405] r4:c089ab80 r3:00000159
[69468.109405] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[69468.139068] r8:fa240100 r7:c089ff28 r6:c08a0794 r5:0000000d r4:fa24010c r3:c089ff28
[69468.139068] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[69468.139068] Exception stack(0xc089ff28 to 0xc089ff70)
[69468.160278] ff20: 00000000 00000000 0459847c c002a304 c089e000 c08a0494
[69468.160278] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[69468.160278] ff60: c002a0d0 c000fe1c a00c0113 ffffffff
[69468.182617] r8:c08daaa1 r7:c089ff5c r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[69468.182617] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[69468.182617] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[69468.182617] r7:ffffffff r3:c089e000
[69468.182617] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[69468.219024] r4:c08a05a8 r3:c089e000
[69468.222778] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[109817.844329] INFO: rcu_preempt self-detected stall on CPU
[109817.844329] INFO: rcu_preempt detected stalls on CPUs/tasks:
[109817.844329] {
[109817.844360] 0
[109817.844360] }
[109817.844360] (detected by 1, t=2737 jiffies, g=345347, c=345346, q=166)
[109817.844360] Task dump for CPU 0:
[109817.844360] swapper/0 R
[109817.844360] running
[109817.844390] 0 0 0 0x00000000
[109817.844390] Backtrace:
[109817.844390] [<c089ff70>] (0xc089ff70) from [<eefc6800>] (0xeefc6800)
[109817.844390] Backtrace aborted due to bad frame pointer <c08daaa1>
[109817.844421] rcu_preempt kthread starved for 2736 jiffies!
[109817.846588] {
[109817.846588] 0} (t=1 jiffies g=345348 c=345347 q=83)
[109817.899047] Task dump for CPU 0:
[109817.902496] swapper/0 R running 0 0 0 0x00000000
[109817.909240] Backtrace:
[109817.909240] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[109817.909240] r6:800c0193 r5:00000000 r4:c08a2ea8 r3:00000000
[109817.925933] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[109817.925933] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[109817.942474] r5:c08afc40 r4:00000000
[109817.942474] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[109817.942474] r4:00000001 r3:00000001
[109817.942474] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[109817.968322] r8:c08a0510 r7:2e716000 r6:c08afc40 r5:c089c880 r4:eefb2880 r3:00a71c62
[109817.968322] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[109817.968322] r10:00000001 r9:eefb0368 r8:00000000 r7:000063e0 r6:f11e012a r5:00000000
[109817.994171] r4:c08a2ea8
[109817.994171] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[109817.994171] r5:c089ff28 r4:eefb05f8
[109818.010650] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[109818.010650] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[109818.010650] r7:c00936a8 r6:eefb0368 r5:eefb03a0 r4:eefb05f8
[109818.035400] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[109818.035400] r7:000063e0 r6:f11e012a r5:eefb0368 r4:eefb0368
[109818.035400] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[109818.050781] r10:eefc6800 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[109818.067413] r4:00000001
[109818.067413] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[109818.079071] r4:eefb4e40 r3:c00156d0
[109818.079071] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[109818.092437] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[109818.092437] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[109818.092437] r4:c089ab80 r3:00000159
[109818.113647] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[109818.113647] r8:fa240100 r7:c089ff28 r6:c08a0794 r5:0000000d r4:fa24010c r3:c089ff28
[109818.122467] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[109818.122467] Exception stack(0xc089ff28 to 0xc089ff70)
[109818.122467] ff20: 00000000 00000000 06cd9f36 c002a304 c089e000 c08a0494
[109818.122467] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[109818.161193] ff60: c002a0d0 c000fe1c a00c0113 ffffffff
[109818.166564] r8:c08daaa1 r7:c089ff5c r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[109818.166564] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[109818.166564] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[109818.166564] r7:ffffffff r3:c089e000
[109818.166564] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[109818.166564] r4:c08a05a8 r3:c089e000
[109818.203430] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[128862.554504] INFO: rcu_preempt self-detected stall on CPU
[128862.557891] INFO: rcu_preempt self-detected stall on CPU
[128862.557891] {
[128862.557922] 1
[128862.557922] }
[128862.557922] (t=10955 jiffies g=404875 c=404874 q=203)
[128862.557922] rcu_preempt kthread starved for 10955 jiffies!
[128862.557922] Task dump for CPU 0:
[128862.557922] swapper/0 R
[128862.557952] running
[128862.557952] 0 0 0 0x00000000
[128862.557952] Backtrace:
[128862.557952] [<c089ff70>] (0xc089ff70) from [<eefc6800>] (0xeefc6800)
[128862.557983] Backtrace aborted due to bad frame pointer <c08daaa1>
[128862.557983] Task dump for CPU 1:
[128862.557983] thttpd R
[128862.557983] running
[128862.557983] 0 1051 1049 0x00000000
[128862.557983] Backtrace:
[128862.558013] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[128862.558044] r6:800d0193
[128862.558044] r5:00000419
[128862.558044] r4:ee02c000
[128862.558044] r3:00000000
[128862.558074] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[128862.558074] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[128862.558074] r5:c08afc40
[128862.558105] r4:00000001
[128862.558105] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[128862.558105] r4:00000002
[128862.558105] r3:00000001
[128862.558135] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[128862.558135] r8:c08a0510
[128862.558135] r7:2e720000
[128862.558166] r6:c08afc40
[128862.558166] r5:c089c880
[128862.558166] r4:eefbc880
[128862.558166] r3:ee2ee000
[128862.558166] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[128862.558197] r10:00000001
[128862.558197] r9:eefba368
[128862.558197] r8:00000000
[128862.558197] r7:00007533
[128862.558197] r6:2258fe40
[128862.558197] r5:00000001
[128862.558197] r4:ee02c000
[128862.558227] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[128862.558227] r5:ee2effb0
[128862.558227] r4:eefba5f8
[128862.558258] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[128862.558258] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[128862.558258] r7:c00936a8
[128862.558288] r6:eefba368
[128862.558288] r5:eefba3a0
[128862.558288] r4:eefba5f8
[128862.558288] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[128862.558319] r7:00007533
[128862.558319] r6:2258fe40
[128862.558319] r5:eefba368
[128862.558319] r4:eefba368
[128862.558349] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[128862.558349] r10:be90bed8
[128862.558349] r9:0002e22c
[128862.558349] r8:00000011
[128862.558349] r7:ee828a00
[128862.558349] r6:ee803d80
[128862.558349] r5:c08bc30c
[128862.558380] r4:00000001
[128862.558380] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[128862.558380] r4:eefbee40
[128862.558410] r3:c00156d0
[128862.558410] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[128862.558410] r8:ee808000
[128862.558410] r7:00000001
[128862.558410] r6:00000000
[128862.558441] r5:00000000
[128862.558441] r4:00000011
[128862.558441] r3:c0077af8
[128862.558441] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[128862.558441] r4:c089ab80
[128862.558471] r3:00000159
[128862.558471] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[128862.558471] r8:fa240100
[128862.558471] r7:ee2effb0
[128862.558471] r6:c08a0794
[128862.558502] r5:0000000d
[128862.558502] r4:fa24010c
[128862.558502] r3:ee2effb0
[128862.558502] [<c00086e4>] (gic_handle_irq) from [<c0013868>] (__irq_usr+0x48/0x60)
[128862.558502] Exception stack(0xee2effb0 to 0xee2efff8)
[128862.558532] ffa0: b6de7008 be90bed8 5508bda1 00000ff6
[128862.558532] ffc0: b6e15028 0002e080 000007ac 0002e384 0001b9a0 0002e22c be90bed8 431bde83
[128862.558532] ffe0: 0002d4c4 be90bd20 00019439 00014316 000d0130 ffffffff
[128862.558563] r8:10c5387d
[128862.558563] r7:10c5387d
[128862.558563] r6:ffffffff
[128862.558563] r5:000d0130
[128862.558563] r4:00014316
[128862.558563] r3:b6de7008
[128862.877868] {
[128862.877868] 0} (t=10955 jiffies g=404875 c=404874 q=203)
[128862.884765] rcu_preempt kthread starved for 10955 jiffies!
[128862.884765] Task dump for CPU 0:
[128862.894042] swapper/0 R running 0 0 0 0x00000000
[128862.894042] Backtrace:
[128862.901733] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[128862.911437] r6:800c0193 r5:00000000 r4:c08a2ea8 r3:00000000
[128862.914001] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[128862.921722] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[128862.927856] r5:c08afc40 r4:00000000
[128862.937835] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[128862.937866] r4:00000001 r3:00000001
[128862.937866] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[128862.959838] r8:c08a0510 r7:2e716000 r6:c08afc40 r5:c089c880 r4:eefb2880 r3:c089e000
[128862.967864] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[128862.975128] r10:00000001 r9:eefb0368 r8:00000000 r7:00007533 r6:22245f9c r5:00000000
[128862.985687] r4:c08a2ea8
[128862.988433] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[128862.997863] r5:c089ff28 r4:eefb05f8
[128863.002166] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[128863.010711] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[128863.017883] r7:c00936a8 r6:eefb0368 r5:eefb03a0 r4:eefb05f8
[128863.026916] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[128863.028808] r7:00007533 r6:22245f9c r5:eefb0368 r4:eefb0368
[128863.028808] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[128863.042297] r10:eefc6800 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[128863.058929] r4:00000001
[128863.058929] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[128863.070587] r4:eefb4e40 r3:c00156d0
[128863.070587] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[128863.083953] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[128863.092163] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[128863.092163] r4:c089ab80 r3:00000159
[128863.105163] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[128863.109771] r8:fa240100 r7:c089ff28 r6:c08a0794 r5:0000000d r4:fa24010c r3:c089ff28
[128863.116424] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[128863.123626] Exception stack(0xc089ff28 to 0xc089ff70)
[128863.132110] ff20: 00000000 00000000 08072860 c002a304 c089e000 c08a0494
[128863.137878] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[128863.137878] ff60: c002a0d0 c000fe1c a00c0113 ffffffff
[128863.137878] r8:c08daaa1 r7:c089ff5c r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[128863.166290] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[128863.175018] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[128863.175018] r7:ffffffff r3:c089e000
[128863.175018] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[128863.175018] r4:c08a05a8 r3:c089e000
[128863.175018] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[148018.019348] INFO: rcu_preempt self-detected stall on CPU
[148018.020050] INFO: rcu_preempt detected stalls on CPUs/tasks:
[148018.020050] {
[148018.020050] 1
[148018.020050] }
[148018.020050] (detected by 0, t=2417 jiffies, g=464766, c=464765, q=109)
[148018.020080] Task dump for CPU 1:
[148018.020080] swapper/1 R
[148018.020080] running
[148018.020080] 0 0 1 0x00000002
[148018.020080] Backtrace:
[148018.020111] [<ee89ffb8>] (0xee89ffb8) from [<00000000>] ( (null))
[148018.020111] Backtrace aborted due to bad frame pointer <c08daaa1>
[148018.020111] rcu_preempt kthread starved for 2417 jiffies!
[148018.067871] {
[148018.067871] 1} (t=2417 jiffies g=464766 c=464765 q=109)
[148018.067871] Task dump for CPU 1:
[148018.067871] swapper/1 R running 0 0 1 0x00000002
[148018.084106] Backtrace:
[148018.084106] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[148018.092010] r6:80010193 r5:00000001 r4:ee876f80 r3:00000000
[148018.101135] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[148018.107849] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[148018.114105] r5:c08afc40 r4:00000001
[148018.121520] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[148018.129943] r4:00000002 r3:00000001
[148018.130249] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[148018.143524] r8:c08a0510 r7:2e720000 r6:c08afc40 r5:c089c880 r4:eefbc880 r3:00e16650
[148018.150238] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[148018.150238] r10:00000001 r9:eefba368 r8:00000000 r7:0000869f r6:1c1a1079 r5:00000000
[148018.169372] r4:ee876f80
[148018.170562] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[148018.179931] r5:ee89ff70 r4:eefba5f8
[148018.179931] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[148018.189941] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[148018.189941] r7:c00936a8 r6:eefba368 r5:eefba3a0 r4:eefba5f8
[148018.209930] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[148018.209930] r7:0000869f r6:1c1a1079 r5:eefba368 r4:eefba368
[148018.225982] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[148018.233886] r10:00000000 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[148018.242614] r4:00000001
[148018.242614] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[148018.254272] r4:eefbee40 r3:c00156d0
[148018.254272] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[148018.267639] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[148018.275848] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[148018.281951] r4:c089ab80 r3:00000159
[148018.288848] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[148018.289947] r8:fa240100 r7:ee89ff70 r6:c08a0794 r5:0000000d r4:fa24010c r3:ee89ff70
[148018.305877] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[148018.305877] Exception stack(0xee89ff70 to 0xee89ffb8)
[148018.313781] ff60: 00000000 00000000 09810d34 c002a304
[148018.326995] ff80: ee89e000 c08a0494 c065c484 c08daaa1 c08daaa1 c08a04e0 00000000 ee89ffc4
[148018.333862] ffa0: ee89ffb8 ee89ffb8 c002a0d0 c000fe1c a0010113 ffffffff
[148018.339935] r8:c08daaa1 r7:ee89ffa4 r6:ffffffff r5:a0010113 r4:c000fe1c r3:c002a0d0
[148018.339935] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[148018.359954] [<c006afd0>] (cpu_startup_entry) from [<c00147f4>] (secondary_start_kernel+0x130/0x13c)
[148018.369873] r7:c08daf80 r3:ee89e000
[148018.370056] [<c00146c4>] (secondary_start_kernel) from [<800087e4>] (0x800087e4)
[148018.373718] r5:00000015 r4:ae88406a
[167954.162567] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 0, t=3412 jiffies, g=527472, c=527471, q=12)
[167954.174163] All QSes seen, last rcu_preempt kthread activity 3411 (16765408-16761997), jiffies_till_next_fqs=1
[167954.183929] swapper/0 R running 0 0 0 0x00000002
[167954.191345] Backtrace:
[167954.194091] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[167954.202087] r6:c08afc40 r5:00000000 r4:c08a2ea8 r3:00000000
[167954.207489] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[167954.215789] [<c005a174>] (sched_show_task) from [<c00806d0>] (rcu_check_callbacks+0x920/0x938)
[167954.224822] r5:c089c880 r4:eefb2880
[167954.228393] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[167954.237976] r10:00000001 r9:eefb0368 r8:00000000 r7:000098c0 r6:dbabeea7 r5:00000000
[167954.246887] r4:c08a2ea8
[167954.249633] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[167954.258453] r5:c089ff28 r4:eefb05f8
[167954.263214] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[167954.272918] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[167954.281341] r7:c00936a8 r6:eefb0368 r5:eefb03a0 r4:eefb05f8
[167954.288116] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[167954.297058] r7:000098c0 r6:dbabeea7 r5:eefb0368 r4:eefb0368
[167954.303375] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[167954.311859] r10:eefc6800 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[167954.319458] r4:00000001
[167954.322906] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[167954.331695] r4:eefb4e40 r3:c00156d0
[167954.334655] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[167954.345184] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[167954.353393] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[167954.362335] r4:c089ab80 r3:00000159
[167954.363311] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[167954.371154] r8:fa240100 r7:c089ff28 r6:c08a0794 r5:0000000d r4:fa24010c r3:c089ff28
[167954.371154] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[167954.371154] Exception stack(0xc089ff28 to 0xc089ff70)
[167954.371154] ff20: 00000000 00000000 0a7d45ba c002a304 c089e000 c08a0494
[167954.405303] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[167954.408935] ff60: c002a0d0 c000fe1c a0010113 ffffffff
[167954.408935] r8:c08daaa1 r7:c089ff5c r6:ffffffff r5:a0010113 r4:c000fe1c r3:c002a0d0
[167954.425933] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[167954.425933] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[167954.425933] r7:ffffffff r3:c089e000
[167954.447387] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[167954.447387] r4:c08a05a8 r3:c089e000
[167954.447387] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[167954.464447] rcu_preempt kthread starved for 3411 jiffies!
[172149.194488] INFO: rcu_preempt self-detected stall on CPU
[172149.195617] INFO: rcu_preempt detected stalls on CPUs/tasks:
[172149.195617] {
[172149.195617] 0
[172149.195617] }
[172149.195617] (detected by 1, t=2946 jiffies, g=540587, c=540586, q=105)
[172149.195617] Task dump for CPU 0:
[172149.195648] swapper/0 R
[172149.195648] running
[172149.195648] 0 0 0 0x00000000
[172149.195648] Backtrace:
[172149.195678] [<c089ff70>] (0xc089ff70) from [<eefc6800>] (0xeefc6800)
[172149.195678] Backtrace aborted due to bad frame pointer <c08daaa1>
[172149.195678] rcu_preempt kthread starved for 2946 jiffies!
[172149.243499] {
[172149.243499] 0} (t=2946 jiffies g=540587 c=540586 q=106)
[172149.245330] Task dump for CPU 0:
[172149.252899] swapper/0 R running 0 0 0 0x00000000
[172149.259796] Backtrace:
[172149.259796] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[172149.269073] r6:80010193 r5:00000000 r4:c08a2ea8 r3:00000000
[172149.272888] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[172149.282897] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[172149.292907] r5:c08afc40 r4:00000000
[172149.292907] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[172149.292907] r4:00000001 r3:00000001
[172149.292907] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[172149.318878] r8:c08a0510 r7:2e716000 r6:c08afc40 r5:c089c880 r4:eefb2880 r3:01063896
[172149.322906] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[172149.322906] r10:00000001 r9:eefb0368 r8:00000000 r7:00009c91 r6:9ad16bb3 r5:00000000
[172149.344726] r4:c08a2ea8
[172149.344726] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[172149.352905] r5:c089ff28 r4:eefb05f8
[172149.361206] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[172149.361206] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[172149.376312] r7:c00936a8 r6:eefb0368 r5:eefb03a0 r4:eefb05f8
[172149.385955] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[172149.389465] r7:00009c91 r6:9ad16bb3 r5:eefb0368 r4:eefb0368
[172149.396301] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[172149.402893] r10:eefc6800 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[172149.417968] r4:00000001
[172149.417968] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[172149.429626] r4:eefb4e40 r3:c00156d0
[172149.429626] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[172149.442993] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[172149.442993] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[172149.442993] r4:c089ab80 r3:00000159
[172149.464202] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[172149.472900] r8:fa240100 r7:c089ff28 r6:c08a0794 r5:0000000d r4:fa24010c r3:c089ff28
[172149.473022] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[172149.482879] Exception stack(0xc089ff28 to 0xc089ff70)
[172149.492889] ff20: 00000000 00000000 0abb071a c002a304 c089e000 c08a0494
[172149.502899] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[172149.511749] ff60: c002a0d0 c000fe1c a0010113 ffffffff
[172149.516296] r8:c08daaa1 r7:c089ff5c r6:ffffffff r5:a0010113 r4:c000fe1c r3:c002a0d0
[172149.522888] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[172149.534057] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[172149.534057] r7:ffffffff r3:c089e000
[172149.546081] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[172149.553985] r4:c08a05a8 r3:c089e000
[172149.553985] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[245649.828765] INFO: rcu_preempt self-detected stall on CPU { 1} (t=7608 jiffies g=771265 c=771264 q=199)
[245649.836059] INFO: rcu_preempt detected stalls on CPUs/tasks: { 1} (detected by 0, t=7608 jiffies, g=771265, c=771264, q=199)
[245649.836090] Task dump for CPU 1:
[245649.836090] swapper/1 R running 0 0 1 0x00000000
[245649.836090] Backtrace:
[245649.836120] [<ee89ffb8>] (0xee89ffb8) from [<00000000>] ( (null))
[245649.836120] Backtrace aborted due to bad frame pointer <c08daaa1>
[245649.876037] Task dump for CPU 1:
[245649.879760] swapper/1 R running 0 0 1 0x00000002
[245649.886108] Backtrace:
[245649.889160] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[245649.897155] r6:800c0193 r5:00000001 r4:ee876f80 r3:00000000
[245649.903198] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[245649.903198] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[245649.917572] r5:c08afc40 r4:00000001
[245649.919738] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[245649.929779] r4:00000002 r3:00000001
[245649.936126] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[245649.936126] r8:c08a0510 r7:2e720000 r6:c08afc40 r5:c089c880 r4:eefbc880 r3:01765fb2
[245649.946075] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[245649.963134] r10:00000001 r9:eefba368 r8:00000000 r7:0000df6a r6:c27fdb8f r5:00000000
[245649.968994] r4:ee876f80
[245649.974182] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[245649.976531] r5:ee89ff70 r4:eefba5f8
[245649.987915] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[245649.995635] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[245650.006072] r7:c00936a8 r6:eefba368 r5:eefba3a0 r4:eefba5f8
[245650.006072] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[245650.022003] r7:0000df6a r6:c27fdb8f r5:eefba368 r4:eefba368
[245650.022003] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[245650.036376] r10:00000000 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[245650.037933] r4:00000001
[245650.047424] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[245650.056060] r4:eefbee40 r3:c00156d0
[245650.060150] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[245650.069244] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[245650.069244] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[245650.087066] r4:c089ab80 r3:00000159
[245650.089691] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[245650.099395] r8:fa240100 r7:ee89ff70 r6:c08a0794 r5:0000000d r4:fa24010c r3:ee89ff70
[245650.107910] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[245650.115814] Exception stack(0xee89ff70 to 0xee89ffb8)
[245650.121185] ff60: 00000000 00000000 0fc70030 c002a304
[245650.126068] ff80: ee89e000 c08a0494 c065c484 c08daaa1 c08daaa1 c08a04e0 00000000 ee89ffc4
[245650.136138] ffa0: ee89ffb8 ee89ffb8 c002a0d0 c000fe1c a00c0113 ffffffff
[245650.138458] r8:c08daaa1 r7:ee89ffa4 r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[245650.153656] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[245650.161315] [<c006afd0>] (cpu_startup_entry) from [<c00147f4>] (secondary_start_kernel+0x130/0x13c)
[245650.166076] r7:c08daf80 r3:ee89e000
[245650.175750] [<c00146c4>] (secondary_start_kernel) from [<800087e4>] (0x800087e4)
[245650.183563] r5:00000015 r4:ae88406a
[254956.159973] INFO: rcu_preempt self-detected stall on CPU
[254956.161376] INFO: rcu_preempt detected stalls on CPUs/tasks:
[254956.161376] {
[254956.161376] 0
[254956.161407] }
[254956.161407] (detected by 1, t=2974 jiffies, g=800239, c=800238, q=76)
[254956.161407] Task dump for CPU 0:
[254956.161407] swapper/0 R
[254956.161407] running
[254956.161407] 0 0 0 0x00000000
[254956.161437] Backtrace:
[254956.161437] [<c089ff70>] (0xc089ff70) from [<eefc6800>] (0xeefc6800)
[254956.161437] Backtrace aborted due to bad frame pointer <c08daaa1>
[254956.201354] {
[254956.203155] 0} (t=2974 jiffies g=800239 c=800238 q=76)
[254956.209167] Task dump for CPU 0:
[254956.212615] swapper/0 R running 0 0 0 0x00000002
[254956.219360] Backtrace:
[254956.219360] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[254956.230010] r6:800c0193 r5:00000000 r4:c08a2ea8 r3:00000000
[254956.232727] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[254956.232727] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[254956.249999] r5:c08afc40 r4:00000000
[254956.249999] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[254956.258636] r4:00000001 r3:00000001
[254956.265441] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[254956.271362] r8:c08a0510 r7:2e716000 r6:c08afc40 r5:c089c880 r4:eefb2880 r3:018492f6
[254956.281372] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[254956.295989] r10:00000001 r9:eefb0368 r8:00000000 r7:0000e7e1 r6:8c5d65b9 r5:00000000
[254956.301361] r4:c08a2ea8
[254956.301361] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[254956.311370] r5:c089ff28 r4:eefb05f8
[254956.320770] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[254956.321960] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[254956.339477] r7:c00936a8 r6:eefb0368 r5:eefb03a0 r4:eefb05f8
[254956.341369] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[254956.354858] r7:0000e7e1 r6:8c5d65b9 r5:eefb0368 r4:eefb0368
[254956.354858] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[254956.361358] r10:eefc6800 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[254956.371368] r4:00000001
[254956.371368] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[254956.371368] r4:eefb4e40 r3:c00156d0
[254956.391357] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[254956.402557] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[254956.402557] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[254956.411956] r4:c089ab80 r3:00000159
[254956.421386] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[254956.431365] r8:fa240100 r7:c089ff28 r6:c08a0794 r5:0000000d r4:fa24010c r3:c089ff28
[254956.431365] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[254956.431365] Exception stack(0xc089ff28 to 0xc089ff70)
[254956.451385] ff20: 00000000 00000000 0fd8a05e c002a304 c089e000 c08a0494
[254956.462676] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[254956.471313] ff60: c002a0d0 c000fe1c a00c0113 ffffffff
[254956.471374] r8:c08daaa1 r7:c089ff5c r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[254956.481414] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[254956.493621] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[254956.493621] r7:ffffffff r3:c089e000
[254956.501800] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[254956.509094] r4:c08a05a8 r3:c089e000
[254956.515899] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[257974.129608] INFO: rcu_preempt self-detected stall on CPU
[257974.129669] INFO: rcu_preempt self-detected stall on CPU
[257974.129669] {
[257974.129669] 0
[257974.129669] }
[257974.129669] (t=10110 jiffies g=809378 c=809377 q=7)
[257974.129669] rcu_preempt kthread starved for 10110 jiffies!
[257974.129669] Task dump for CPU 0:
[257974.129699] swapper/0 R
[257974.129699] running
[257974.129699] 0 0 0 0x00000000
[257974.129699] Backtrace:
[257974.129699] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[257974.129699] r6:800c0193
[257974.129699] r5:00000000
[257974.129760] r4:c08a2ea8
[257974.129760] r3:00000000
[257974.129760] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[257974.129791] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[257974.129791] r5:c08afc40
[257974.129791] r4:00000000
[257974.129821] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[257974.129821] r4:00000001
[257974.129821] r3:00000003
[257974.129852] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[257974.129852] r8:c08a0510
[257974.129852] r7:2e716000
[257974.129852] r6:c08afc40
[257974.129852] r5:c089c880
[257974.129852] r4:eefb2880
[257974.129882] r3:c089e000
[257974.129882] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[257974.129882] r10:00000001
[257974.129882] r9:eefb0368
[257974.129913] r8:00000000
[257974.129913] r7:0000eaa0
[257974.129913] r6:375624c4
[257974.129913] r5:00000000
[257974.129913] r4:c08a2ea8
[257974.129943] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[257974.129943] r5:c089ff28
[257974.129943] r4:eefb05f8
[257974.129974] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[257974.129974] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[257974.129974] r7:c00936a8
[257974.129974] r6:eefb0368
[257974.129974] r5:eefb03a0
[257974.130004] r4:eefb05f8
[257974.130004] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[257974.130004] r7:0000eaa0
[257974.130004] r6:375624c4
[257974.130035] r5:eefb0368
[257974.130035] r4:eefb0368
[257974.130035] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[257974.130035] r10:eefc6800
[257974.130065] r9:c08a04e0
[257974.130065] r8:00000011
[257974.130065] r7:ee828a00
[257974.130065] r6:ee803d80
[257974.130065] r5:c08bc30c
[257974.130065] r4:00000001
[257974.130096] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[257974.130096] r4:eefb4e40
[257974.130096] r3:c00156d0
[257974.130126] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[257974.130126] r8:ee808000
[257974.130126] r7:00000001
[257974.130126] r6:00000000
[257974.130126] r5:00000000
[257974.130126] r4:00000011
[257974.130157] r3:c0077af8
[257974.130157] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[257974.130157] r4:c089ab80
[257974.130157] r3:00000159
[257974.130187] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[257974.130187] r8:fa240100
[257974.130187] r7:c089ff28
[257974.130187] r6:c08a0794
[257974.130187] r5:0000000d
[257974.130187] r4:fa24010c
[257974.130218] r3:c089ff28
[257974.130218] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[257974.130218] Exception stack(0xc089ff28 to 0xc089ff70)
[257974.130249] ff20: 00000000 00000000 1009f3ce c002a304 c089e000 c08a0494
[257974.130249] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[257974.130249] ff60: c002a0d0 c000fe1c a00c0113 ffffffff
[257974.130249] r8:c08daaa1
[257974.130249] r7:c089ff5c
[257974.130279] r6:ffffffff
[257974.130279] r5:a00c0113
[257974.130279] r4:c000fe1c
[257974.130279] r3:c002a0d0
[257974.130310] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[257974.130310] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[257974.130310] r7:ffffffff
[257974.130340] r3:c089e000
[257974.130340] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[257974.130340] r4:c08a05a8
[257974.130371] r3:c089e000
[257974.130371] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[257974.130371] Task dump for CPU 1:
[257974.130371] swapper/1 R
[257974.130371] running
[257974.130401] 0 0 1 0x00000000
[257974.130401] Backtrace:
[257974.130401] [<ee89ffb8>] (0xee89ffb8) from [<00000000>] ( (null))
[257974.130401] Backtrace aborted due to bad frame pointer <c08daaa1>
[257974.433502] {
[257974.433502] 1} (t=10140 jiffies g=809378 c=809377 q=0)
[257974.492797] rcu_preempt kthread starved for 10140 jiffies!
[257974.492797] Task dump for CPU 0:
[257974.502807] swapper/0 R running 0 0 0 0x00000000
[257974.502807] Backtrace:
[257974.513000] [<c089ff54>] (0xc089ff54) from [<c089ff7c>] (0xc089ff7c)
[257974.515655] Backtrace aborted due to bad frame pointer <60000193>
[257974.515655] Task dump for CPU 1:
[257974.515655] swapper/1 R running 0 0 1 0x00000000
[257974.534515] Backtrace:
[257974.534515] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[257974.549652] r6:800c0193 r5:00000001 r4:ee876f80 r3:00000000
[257974.553344] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[257974.553344] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[257974.553344] r5:c08afc40 r4:00000001
[257974.553344] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[257974.584777] r4:00000002 r3:00000001
[257974.588623] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[257974.588623] r8:c08a0510 r7:2e720000 r6:c08afc40 r5:c089c880 r4:eefbc880 r3:ee89e000
[257974.588623] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[257974.615631] r10:00000001 r9:eefba368 r8:00000000 r7:0000eaa0 r6:375624c4 r5:00000000
[257974.615631] r4:ee876f80
[257974.615631] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[257974.636566] r5:ee89ff70 r4:eefba5f8
[257974.636566] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[257974.649932] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[257974.654357] r7:c00936a8 r6:eefba368 r5:eefba3a0 r4:eefba5f8
[257974.659118] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[257974.659118] r7:0000eaa0 r6:375624c4 r5:eefba368 r4:eefba368
[257974.680511] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[257974.680511] r10:00000000 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[257974.688873] r4:00000001
[257974.688873] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[257974.708801] r4:eefbee40 r3:c00156d0
[257974.708801] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[257974.708801] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[257974.708801] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[257974.708801] r4:c089ab80 r3:00000159
[257974.743377] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[257974.743377] r8:fa240100 r7:ee89ff70 r6:c08a0794 r5:0000000d r4:fa24010c r3:ee89ff70
[257974.758544] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[257974.761718] Exception stack(0xee89ff70 to 0xee89ffb8)
[257974.761718] ff60: 00000000 00000000 10910484 c002a304
[257974.782287] ff80: ee89e000 c08a0494 c065c484 c08daaa1 c08daaa1 c08a04e0 00000000 ee89ffc4
[257974.790924] ffa0: ee89ffb8 ee89ffb8 c002a0d0 c000fe1c a00c0113 ffffffff
[257974.790924] r8:c08daaa1 r7:ee89ffa4 r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[257974.790924] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[257974.814849] [<c006afd0>] (cpu_startup_entry) from [<c00147f4>] (secondary_start_kernel+0x130/0x13c)
[257974.814849] r7:c08daf80 r3:ee89e000
[257974.828216] [<c00146c4>] (secondary_start_kernel) from [<800087e4>] (0x800087e4)
[257974.836029] r5:00000015 r4:ae88406a
[268388.803161] INFO: rcu_preempt self-detected stall on CPU { 0}
[268388.809143] INFO: rcu_preempt detected stalls on CPUs/tasks:
[268388.809143] {
[268388.809143] 0
[268388.809143] }
[268388.809173] (detected by 1, t=3562 jiffies, g=841862, c=841861, q=110)
[268388.809173] Task dump for CPU 0:
[268388.809173] swapper/0 R
[268388.809173] running
[268388.809173] 0 0 0 0x00000000
[268388.809204] Backtrace:
[268388.809204] [<c089ff70>] (0xc089ff70) from [<eefc6800>] (0xeefc6800)
[268388.809204] Backtrace aborted due to bad frame pointer <c08daaa1>
[268388.846984] (t=3562 jiffies g=841862 c=841861 q=110)
[268388.852539] Task dump for CPU 0:
[268388.855987] swapper/0 R running 0 0 0 0x00000002
[268388.862640] Backtrace:
[268388.864837] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[268388.873016] r6:800c0193 r5:00000000 r4:c08a2ea8 r3:00000000
[268388.878662] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[268388.887481] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[268388.895965] r5:c08afc40 r4:00000000
[268388.898834] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[268388.908477] r4:00000001 r3:00000001
[268388.912200] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[268388.921325] r8:c08a0510 r7:2e716000 r6:c08afc40 r5:c089c880 r4:eefb2880 r3:0199120f
[268388.930023] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[268388.939361] r10:00000001 r9:eefb0368 r8:00000000 r7:0000f419 r6:0fb55d2b r5:00000000
[268388.947662] r4:c08a2ea8
[268388.950103] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[268388.960327] r5:c089ff28 r4:eefb05f8
[268388.963470] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[268388.972930] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[268388.982360] r7:c00936a8 r6:eefb0368 r5:eefb03a0 r4:eefb05f8
[268388.988464] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[268388.998260] r7:0000f419 r6:0fb55d2b r5:eefb0368 r4:eefb0368
[268389.004150] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[268389.012634] r10:eefc6800 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[268389.020935] r4:00000001
[268389.020935] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[268389.031127] r4:eefb4e40 r3:c00156d0
[268389.031127] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[268389.045959] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[268389.048248] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[268389.063323] r4:c089ab80 r3:00000159
[268389.067169] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[268389.070526] r8:fa240100 r7:c089ff28 r6:c08a0794 r5:0000000d r4:fa24010c r3:c089ff28
[268389.078247] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[268389.085937] Exception stack(0xc089ff28 to 0xc089ff70)
[268389.097412] ff20: 00000000 00000000 10b4b1ca c002a304 c089e000 c08a0494
[268389.099060] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[268389.099060] ff60: c002a0d0 c000fe1c a00c0113 ffffffff
[268389.099060] r8:c08daaa1 r7:c089ff5c r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[268389.128234] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[268389.128295] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[268389.138244] r7:ffffffff r3:c089e000
[268389.148315] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[268389.148315] r4:c08a05a8 r3:c089e000
[268389.158294] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[321483.256774] INFO: rcu_preempt detected stalls on CPUs/tasks: { 0 1} (detected by 1, t=0 jiffies, g=1008987, c=1008986, q=200)
[321483.268737] Task dump for CPU 1:
[321483.268737] swapper/1 R running 0 0 1 0x00000000
[321483.278930] Backtrace:
[321483.278930] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[321483.288635] r6:800c0193 r5:00000001 r4:ee876f80 r3:00000000
[321483.295623] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[321483.298645] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[321483.308654] r5:c08afc40 r4:00000001
[321483.308654] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[321483.308654] r4:00000002 r3:00000001
[321483.308654] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080688>] (rcu_check_callbacks+0x8d8/0x938)
[321483.338012] r8:c08a0510 r7:2e720000 r6:c08afc40 r5:c089c880 r4:eefbc880 r3:00000002
[321483.339904] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[321483.339904] r10:00000001 r9:eefba368 r8:00000000 r7:00012463 r6:0d2cc799 r5:00000000
[321483.363861] r4:ee876f80
[321483.366607] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[321483.368652] r5:ee89ff70 r4:eefba5f8
[321483.380340] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[321483.380676] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[321483.399047] r7:c00936a8 r6:eefba368 r5:eefba3a0 r4:eefba5f8
[321483.405090] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[321483.414428] r7:00012463 r6:0d2cc799 r5:eefba368 r4:eefba368
[321483.420471] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[321483.420471] r10:00000000 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[321483.437103] r4:00000001
[321483.437103] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[321483.440185] r4:eefbee40 r3:c00156d0
[321483.440185] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[321483.458648] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[321483.470153] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[321483.470153] r4:c089ab80 r3:00000159
[321483.483337] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[321483.483337] r8:fa240100 r7:ee89ff70 r6:c08a0794 r5:0000000d r4:fa24010c r3:ee89ff70
[321483.498931] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[321483.505401] Exception stack(0xee89ff70 to 0xee89ffb8)
[321483.505401] ff60: 00000000 00000000 149f47ac c002a304
[321483.521881] ff80: ee89e000 c08a0494 c065c484 c08daaa1 c08daaa1 c08a04e0 00000000 ee89ffc4
[321483.530883] ffa0: ee89ffb8 ee89ffb8 c002a0d0 c000fe1c a00c0113 ffffffff
[321483.537872] r8:c08daaa1 r7:ee89ffa4 r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[321483.543151] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[321483.554138] [<c006afd0>] (cpu_startup_entry) from [<c00147f4>] (secondary_start_kernel+0x130/0x13c)
[321483.558654] r7:c08daf80 r3:ee89e000
[321483.558654] [<c00146c4>] (secondary_start_kernel) from [<800087e4>] (0x800087e4)
[321483.558654] r5:00000015 r4:ae88406a
[425131.859863] INFO: rcu_preempt self-detected stall on CPU
[425131.863006] INFO: rcu_preempt self-detected stall on CPU
[425131.863006] {
[425131.863037] 0
[425131.863037] }
[425131.863037] (t=6420 jiffies g=1334622 c=1334621 q=202)
[425131.863037] rcu_preempt kthread starved for 6420 jiffies!
[425131.863037] Task dump for CPU 0:
[425131.863037] swapper/0 R
[425131.863037] running
[425131.863067] 0 0 0 0x00000000
[425131.863067] Backtrace:
[425131.863067] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[425131.863067] r6:80000193
[425131.863067] r5:00000000
[425131.863067] r4:c08a2ea8
[425131.863067] r3:00000000
[425131.863128] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[425131.863159] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[425131.863159] r5:c08afc40
[425131.863159] r4:00000000
[425131.863189] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[425131.863189] r4:00000001
[425131.863189] r3:00000003
[425131.863220] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[425131.863220] r8:c08a0510
[425131.863220] r7:2e716000
[425131.863220] r6:c08afc40
[425131.863220] r5:c089c880
[425131.863220] r4:eefb2880
[425131.863220] r3:c089e000
[425131.863250] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[425131.863250] r10:00000001
[425131.863250] r9:eefb0368
[425131.863250] r8:00000000
[425131.863281] r7:000182a7
[425131.863281] r6:8938270b
[425131.863281] r5:00000000
[425131.863281] r4:c08a2ea8
[425131.863311] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[425131.863311] r5:c089ff28
[425131.863311] r4:eefb05f8
[425131.863311] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[425131.863342] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[425131.863342] r7:c00936a8
[425131.863342] r6:eefb0368
[425131.863342] r5:eefb03a0
[425131.863342] r4:eefb05f8
[425131.863372] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[425131.863372] r7:000182a7
[425131.863372] r6:8938270b
[425131.863372] r5:eefb0368
[425131.863372] r4:eefb0368
[425131.863403] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[425131.863403] r10:eefc6800
[425131.863403] r9:c08a04e0
[425131.863403] r8:00000011
[425131.863433] r7:ee828a00
[425131.863433] r6:ee803d80
[425131.863433] r5:c08bc30c
[425131.863433] r4:00000001
[425131.863464] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[425131.863464] r4:eefb4e40
[425131.863464] r3:c00156d0
[425131.863464] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[425131.863494] r8:ee808000
[425131.863494] r7:00000001
[425131.863494] r6:00000000
[425131.863494] r5:00000000
[425131.863494] r4:00000011
[425131.863494] r3:c0077af8
[425131.863525] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[425131.863525] r4:c089ab80
[425131.863525] r3:00000159
[425131.863525] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[425131.863555] r8:fa240100
[425131.863555] r7:c089ff28
[425131.863555] r6:c08a0794
[425131.863555] r5:0000000d
[425131.863555] r4:fa24010c
[425131.863555] r3:c089ff28
[425131.863586] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[425131.863586] Exception stack(0xc089ff28 to 0xc089ff70)
[425131.863586] ff20: 00000000 00000000 1a5d6afc c002a304 c089e000 c08a0494
[425131.863616] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[425131.863616] ff60: c002a0d0 c000fe1c a0000113 ffffffff
[425131.863616] r8:c08daaa1
[425131.863616] r7:c089ff5c
[425131.863616] r6:ffffffff
[425131.863616] r5:a0000113
[425131.863616] r4:c000fe1c
[425131.863647] r3:c002a0d0
[425131.863647] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[425131.863677] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[425131.863677] r7:ffffffff
[425131.863677] r3:c089e000
[425131.863708] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[425131.863708] r4:c08a05a8
[425131.863708] r3:c089e000
[425131.863739] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[425131.863739] Task dump for CPU 1:
[425131.863739] swapper/1 R
[425131.863739] running
[425131.863739] 0 0 1 0x00000000
[425131.863739] Backtrace:
[425131.863769] [<ee89ffb8>] (0xee89ffb8) from [<00000000>] ( (null))
[425131.863769] Backtrace aborted due to bad frame pointer <c08daaa1>
[425132.183013] {
[425132.223205] 1} (t=6420 jiffies g=1334622 c=1334621 q=202)
[425132.223266] rcu_preempt kthread starved for 6420 jiffies!
[425132.233398] Task dump for CPU 1:
[425132.233398] swapper/1 R running 0 0 1 0x00000000
[425132.243591] Backtrace:
[425132.243591] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[425132.243591] r6:800c0193 r5:00000001 r4:ee876f80 r3:00000000
[425132.260284] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[425132.268463] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[425132.268463] r5:c08afc40 r4:00000001
[425132.276824] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[425132.283721] r4:00000002 r3:00000001
[425132.283721] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[425132.302276] r8:c08a0510 r7:2e720000 r6:c08afc40 r5:c089c880 r4:eefbc880 r3:ee89e000
[425132.302276] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[425132.313720] r10:00000001 r9:eefba368 r8:00000000 r7:000182a7 r6:89074222 r5:00000000
[425132.327209] r4:ee876f80
[425132.327209] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[425132.338775] r5:ee89ff70 r4:eefba5f8
[425132.344848] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[425132.354522] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[425132.354522] r7:c00936a8 r6:eefba368 r5:eefba3a0 r4:eefba5f8
[425132.369720] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[425132.373016] r7:000182a7 r6:89074222 r5:eefba368 r4:eefba368
[425132.385101] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[425132.385101] r10:00000000 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[425132.400909] r4:00000001
[425132.404479] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[425132.405090] r4:eefbee40 r3:c00156d0
[425132.413391] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[425132.423004] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[425132.434967] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[425132.434967] r4:c089ab80 r3:00000159
[425132.447967] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[425132.451049] r8:fa240100 r7:ee89ff70 r6:c08a0794 r5:0000000d r4:fa24010c r3:ee89ff70
[425132.463012] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[425132.463012] Exception stack(0xee89ff70 to 0xee89ffb8)
[425132.478240] ff60: 00000000 00000000 1b5f23da c002a304
[425132.478240] ff80: ee89e000 c08a0494 c065c484 c08daaa1 c08daaa1 c08a04e0 00000000 ee89ffc4
[425132.495513] ffa0: ee89ffb8 ee89ffb8 c002a0d0 c000fe1c a00c0113 ffffffff
[425132.497283] r8:c08daaa1 r7:ee89ffa4 r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[425132.504760] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[425132.504760] [<c006afd0>] (cpu_startup_entry) from [<c00147f4>] (secondary_start_kernel+0x130/0x13c)
[425132.521240] r7:c08daf80 r3:ee89e000
[425132.532806] [<c00146c4>] (secondary_start_kernel) from [<800087e4>] (0x800087e4)
[425132.534759] r5:00000015 r4:ae88406a
[505803.996734] wlan0: deauthenticated from 90:f6:52:81:ee:70 (Reason: 2=PREV_AUTH_NOT_VALID)
[505804.107727] cfg80211: Calling CRDA to update world regulatory domain
[505824.155517] wlan0: authenticate with 90:f6:52:81:ee:70
[505824.170654] wlan0: direct probe to 90:f6:52:81:ee:70 (try 1/3)
[505824.388305] wlan0: direct probe to 90:f6:52:81:ee:70 (try 2/3)
[505824.599334] wlan0: direct probe to 90:f6:52:81:ee:70 (try 3/3)
[505824.818206] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[513546.174133] INFO: rcu_preempt self-detected stall on CPU
[513546.175689] INFO: rcu_preempt detected stalls on CPUs/tasks:
[513546.175689] {
[513546.175720] 1
[513546.175720] }
[513546.175720] (detected by 0, t=18335 jiffies, g=1613135, c=1613134, q=126)
[513546.175720] Task dump for CPU 1:
[513546.175720] swapper/1 R
[513546.175720] running
[513546.175750] 0 0 1 0x00000000
[513546.175750] Backtrace:
[513546.175750] [<ee89ffb8>] (0xee89ffb8) from [<00000000>] ( (null))
[513546.175750] Backtrace aborted due to bad frame pointer <c08daaa1>
[513546.175781] rcu_preempt kthread starved for 18335 jiffies!
[513546.223297] {
[513546.225128] 1} (t=18335 jiffies g=1613135 c=1613134 q=126)
[513546.229675] Task dump for CPU 1:
[513546.233123] swapper/1 R running 0 0 1 0x00000000
[513546.238861] Backtrace:
[513546.242462] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[513546.250122] r6:800c0193 r5:00000001 r4:ee876f80 r3:00000000
[513546.255981] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[513546.264099] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[513546.272430] r5:c08afc40 r4:00000001
[513546.276702] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[513546.285583] r4:00000002 r3:00000001
[513546.289398] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[513546.298767] r8:c08a0510 r7:2e720000 r6:c08afc40 r5:c089c880 r4:eefbc880 r3:030f2674
[513546.306671] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[513546.316528] r10:00000001 r9:eefba368 r8:00000000 r7:0001d311 r6:16e06f5f r5:00000000
[513546.324645] r4:ee876f80
[513546.327545] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[513546.337371] r5:ee89ff70 r4:eefba5f8
[513546.341278] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[513546.350830] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[513546.359954] r7:c00936a8 r6:eefba368 r5:eefba3a0 r4:eefba5f8
[513546.365631] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[513546.375396] r7:0001d311 r6:16e06f5f r5:eefba368 r4:eefba368
[513546.377014] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[513546.385650] r10:00000000 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[513546.398071] r4:00000001
[513546.398071] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[513546.398071] r4:eefbee40 r3:c00156d0
[513546.413177] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[513546.415618] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[513546.428161] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[513546.435638] r4:c089ab80 r3:00000159
[513546.444305] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[513546.444305] r8:fa240100 r7:ee89ff70 r6:c08a0794 r5:0000000d r4:fa24010c r3:ee89ff70
[513546.455718] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[513546.455718] Exception stack(0xee89ff70 to 0xee89ffb8)
[513546.474578] ff60: 00000000 00000000 21154c8c c002a304
[513546.483215] ff80: ee89e000 c08a0494 c065c484 c08daaa1 c08daaa1 c08a04e0 00000000 ee89ffc4
[513546.491851] ffa0: ee89ffb8 ee89ffb8 c002a0d0 c000fe1c a00c0113 ffffffff
[513546.491851] r8:c08daaa1 r7:ee89ffa4 r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[513546.507049] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[513546.508087] [<c006afd0>] (cpu_startup_entry) from [<c00147f4>] (secondary_start_kernel+0x130/0x13c)
[513546.523162] r7:c08daf80 r3:ee89e000
[513546.529144] [<c00146c4>] (secondary_start_kernel) from [<800087e4>] (0x800087e4)
[513546.530700] r5:00000015 r4:ae88406a
[554608.944976] INFO: rcu_preempt self-detected stall on CPU
[554608.945007] INFO: rcu_preempt self-detected stall on CPU
[554608.945007] {
[554608.945007] 0
[554608.945007] }
[554608.945037] (t=4782 jiffies g=1771098 c=1771097 q=200)
[554608.945037] rcu_preempt kthread starved for 4782 jiffies!
[554608.945037] Task dump for CPU 0:
[554608.945037] swapper/0 R
[554608.945037] running
[554608.945037] 0 0 0 0x00000002
[554608.945037] Backtrace:
[554608.945068] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[554608.945098] r6:800c0193
[554608.945098] r5:00000000
[554608.945098] r4:c08a2ea8
[554608.945098] r3:00000000
[554608.945129] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[554608.945129] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[554608.945159] r5:c08afc40
[554608.945159] r4:00000000
[554608.945159] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[554608.945190] r4:00000001
[554608.945190] r3:00000003
[554608.945190] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[554608.945190] r8:c08a0510
[554608.945220] r7:2e716000
[554608.945220] r6:c08afc40
[554608.945220] r5:c089c880
[554608.945220] r4:eefb2880
[554608.945220] r3:c089e000
[554608.945251] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[554608.945251] r10:00000001
[554608.945251] r9:eefb0368
[554608.945251] r8:00000000
[554608.945251] r7:0001f869
[554608.945251] r6:d0bb99f3
[554608.945281] r5:00000000
[554608.945281] r4:c08a2ea8
[554608.945281] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[554608.945281] r5:c089ff28
[554608.945312] r4:eefb05f8
[554608.945312] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[554608.945343] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[554608.945343] r7:c00936a8
[554608.945343] r6:eefb0368
[554608.945343] r5:eefb03a0
[554608.945343] r4:eefb05f8
[554608.945373] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[554608.945373] r7:0001f869
[554608.945373] r6:d0bb99f3
[554608.945373] r5:eefb0368
[554608.945373] r4:eefb0368
[554608.945404] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[554608.945404] r10:eefc6800
[554608.945404] r9:c08a04e0
[554608.945404] r8:00000011
[554608.945404] r7:ee828a00
[554608.945404] r6:ee803d80
[554608.945434] r5:c08bc30c
[554608.945434] r4:00000001
[554608.945434] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[554608.945465] r4:eefb4e40
[554608.945465] r3:c00156d0
[554608.945465] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[554608.945465] r8:ee808000
[554608.945495] r7:00000001
[554608.945495] r6:00000000
[554608.945495] r5:00000000
[554608.945495] r4:00000011
[554608.945495] r3:c0077af8
[554608.945495] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[554608.945526] r4:c089ab80
[554608.945526] r3:00000159
[554608.945526] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[554608.945526] r8:fa240100
[554608.945556] r7:c089ff28
[554608.945556] r6:c08a0794
[554608.945556] r5:0000000d
[554608.945556] r4:fa24010c
[554608.945556] r3:c089ff28
[554608.945556] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[554608.945587] Exception stack(0xc089ff28 to 0xc089ff70)
[554608.945587] ff20: 00000000 00000000 2248c666 c002a304 c089e000 c08a0494
[554608.945587] ff40: c065c484 c08daaa1 c08daaa1 c08a04e0 eefc6800 c089ff7c c089ff70 c089ff70
[554608.945617] ff60: c002a0d0 c000fe1c a00c0113 ffffffff
[554608.945617] r8:c08daaa1
[554608.945617] r7:c089ff5c
[554608.945617] r6:ffffffff
[554608.945617] r5:a00c0113
[554608.945617] r4:c000fe1c
[554608.945617] r3:c002a0d0
[554608.945648] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[554608.945678] [<c006afd0>] (cpu_startup_entry) from [<c064e200>] (rest_init+0x8c/0x90)
[554608.945678] r7:ffffffff
[554608.945678] r3:c089e000
[554608.945709] [<c064e174>] (rest_init) from [<c085acb4>] (start_kernel+0x368/0x374)
[554608.945709] r4:c08a05a8
[554608.945709] r3:c089e000
[554608.945739] [<c085a94c>] (start_kernel) from [<80008074>] (0x80008074)
[554608.945739] Task dump for CPU 1:
[554608.945739] swapper/1 R
[554608.945739] running
[554608.945739] 0 0 1 0x00000000
[554608.945739] Backtrace:
[554608.945770] [<ee89ffb8>] (0xee89ffb8) from [<00000000>] ( (null))
[554608.945770] Backtrace aborted due to bad frame pointer <c08daaa1>
[554609.306549] {
[554609.306549] 1} (t=4782 jiffies g=1771098 c=1771097 q=202)
[554609.306549] rcu_preempt kthread starved for 4782 jiffies!
[554609.318572] Task dump for CPU 1:
[554609.318572] swapper/1 R running 0 0 1 0x00000002
[554609.328765] Backtrace:
[554609.328765] [<c00127e8>] (dump_backtrace) from [<c0012a0c>] (show_stack+0x18/0x1c)
[554609.328765] r6:800c0193 r5:00000001 r4:ee876f80 r3:00000000
[554609.342712] [<c00129f4>] (show_stack) from [<c005a230>] (sched_show_task+0xbc/0x110)
[554609.353637] [<c005a174>] (sched_show_task) from [<c005d5e0>] (dump_cpu_task+0x40/0x44)
[554609.361999] r5:c08afc40 r4:00000001
[554609.365844] [<c005d5a0>] (dump_cpu_task) from [<c007c7bc>] (rcu_dump_cpu_stacks+0x94/0xd0)
[554609.372192] r4:00000002 r3:00000001
[554609.378387] [<c007c728>] (rcu_dump_cpu_stacks) from [<c0080278>] (rcu_check_callbacks+0x4c8/0x938)
[554609.381103] r8:c08a0510 r7:2e720000 r6:c08afc40 r5:c089c880 r4:eefbc880 r3:ee89e000
[554609.391113] [<c007fdb0>] (rcu_check_callbacks) from [<c0083218>] (update_process_times+0x40/0x6c)
[554609.401092] r10:00000001 r9:eefba368 r8:00000000 r7:0001f869 r6:d022dd14 r5:00000000
[554609.413696] r4:ee876f80
[554609.413696] [<c00831d8>] (update_process_times) from [<c00936a4>] (tick_sched_handle.isra.17+0x4c/0x50)
[554609.426330] r5:ee89ff70 r4:eefba5f8
[554609.428497] [<c0093658>] (tick_sched_handle.isra.17) from [<c00936fc>] (tick_sched_timer+0x54/0x98)
[554609.435974] [<c00936a8>] (tick_sched_timer) from [<c0083ad8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[554609.448883] r7:c00936a8 r6:eefba368 r5:eefba3a0 r4:eefba5f8
[554609.453308] [<c0083a8c>] (__run_hrtimer.isra.34) from [<c0084250>] (hrtimer_interrupt+0xf8/0x284)
[554609.455505] r7:0001f869 r6:d022dd14 r5:eefba368 r4:eefba368
[554609.470275] [<c0084158>] (hrtimer_interrupt) from [<c0015708>] (twd_handler+0x38/0x48)
[554609.474334] r10:00000000 r9:c08a04e0 r8:00000011 r7:ee828a00 r6:ee803d80 r5:c08bc30c
[554609.474334] r4:00000001
[554609.474334] [<c00156d0>] (twd_handler) from [<c0077b6c>] (handle_percpu_devid_irq+0x74/0x8c)
[554609.494598] r4:eefbee40 r3:c00156d0
[554609.502410] [<c0077af8>] (handle_percpu_devid_irq) from [<c0073bf8>] (generic_handle_irq+0x34/0x44)
[554609.507843] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0077af8
[554609.517578] [<c0073bc4>] (generic_handle_irq) from [<c0073ed0>] (__handle_domain_irq+0x64/0xbc)
[554609.521087] r4:c089ab80 r3:00000159
[554609.529327] [<c0073e6c>] (__handle_domain_irq) from [<c0008710>] (gic_handle_irq+0x2c/0x64)
[554609.541107] r8:fa240100 r7:ee89ff70 r6:c08a0794 r5:0000000d r4:fa24010c r3:ee89ff70
[554609.541107] [<c00086e4>] (gic_handle_irq) from [<c0013580>] (__irq_svc+0x40/0x74)
[554609.541107] Exception stack(0xee89ff70 to 0xee89ffb8)
[554609.541107] ff60: 00000000 00000000 23e1d09e c002a304
[554609.571105] ff80: ee89e000 c08a0494 c065c484 c08daaa1 c08daaa1 c08a04e0 00000000 ee89ffc4
[554609.574554] ffa0: ee89ffb8 ee89ffb8 c002a0d0 c000fe1c a00c0113 ffffffff
[554609.581085] r8:c08daaa1 r7:ee89ffa4 r6:ffffffff r5:a00c0113 r4:c000fe1c r3:c002a0d0
[554609.591094] [<c000fdf4>] (arch_cpu_idle) from [<c006b0ec>] (cpu_startup_entry+0x11c/0x170)
[554609.595916] [<c006afd0>] (cpu_startup_entry) from [<c00147f4>] (secondary_start_kernel+0x130/0x13c)
[554609.614166] r7:c08daf80 r3:ee89e000
[554609.614166] [<c00146c4>] (secondary_start_kernel) from [<800087e4>] (0x800087e4)
[554609.625823] r5:00000015 r4:ae88406a
#
[-- Attachment #4: dmesg-4.1-rc2 --]
[-- Type: application/octet-stream, Size: 53156 bytes --]
$
$
$
$ uptime
19:14:04 up 3 days, 18:00, load average: 0.01, 0.07, 0.11
$
$
$
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 4.1.0-rc2-panda (rfg@red.dwarf) (gcc version 4.9.2 (Buildroot 2015.05-git-01367-gdc9cbe5) ) #1 SMP PREEMPT Mon May 4 14:43:43 AEST 2015
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] earlycon: no match for ttyO2,115200
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] On node 0 totalpages: 261888
[ 0.000000] free_area_init_node: node 0, pgdat c08ec8c0, node_mem_map eeff9000
[ 0.000000] Normal zone: 1520 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 194560 pages, LIFO batch:31
[ 0.000000] HighMem zone: 67328 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] PERCPU: Embedded 11 pages/cpu @eefac000 s15808 r8192 d21056 u45056
[ 0.000000] pcpu-alloc: s15808 r8192 d21056 u45056 alloc=11*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260368
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1028764K/1047552K available (6527K kernel code, 238K rwdata, 2064K rodata, 276K init, 282K bss, 18788K reserved, 0K cma-reserved, 269312K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0000000 - 0xff000000 ( 240 MB)
lowmem : 0xc0000000 - 0xef800000 ( 760 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc086c0dc (8593 kB)
.init : 0xc086d000 - 0xc08b2000 ( 276 kB)
.data : 0xc08b2000 - 0xc08ed880 ( 239 kB)
.bss : 0xc08f0000 - 0xc0936bb8 ( 283 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 ID prefetch enabled, offset 1 lines
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x7e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.001800] Console: colour dummy device 80x30
[ 0.001831] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.090240] pid_max: default: 32768 minimum: 301
[ 0.090332] Security Framework initialized
[ 0.090362] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.090362] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.090942] Initializing cgroup subsys blkio
[ 0.090972] Initializing cgroup subsys devices
[ 0.090972] Initializing cgroup subsys freezer
[ 0.091003] CPU: Testing write buffer coherency: ok
[ 0.091217] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.091278] Setting up static identity map for 0x80008280 - 0x800082d8
[ 0.190216] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.190307] Brought up 2 CPUs
[ 0.190338] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.190338] CPU: All CPU(s) started in SVC mode.
[ 0.190826] devtmpfs: initialized
[ 0.191467] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.193054] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.194519] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.288696] clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.288940] xor: measuring software checksum speed
[ 0.380218] arm4regs : 1213.600 MB/sec
[ 0.480224] 8regs : 858.800 MB/sec
[ 0.580230] 32regs : 808.800 MB/sec
[ 0.580230] xor: using function: arm4regs (1213.600 MB/sec)
[ 0.580444] pinctrl core: initialized pinctrl subsystem
[ 0.599182] NET: Registered protocol family 16
[ 0.599975] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.608642] OMAP GPIO hardware version 0.1
[ 0.613250] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.613769] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.614135] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.614471] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.625976] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.626281] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.632263] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.632293] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.633544] OMAP DMA hardware revision 0.0
[ 0.850250] raid6: int32x1 gen() 103 MB/s
[ 1.020263] raid6: int32x1 xor() 84 MB/s
[ 1.190612] raid6: int32x2 gen() 130 MB/s
[ 1.360473] raid6: int32x2 xor() 98 MB/s
[ 1.530334] raid6: int32x4 gen() 145 MB/s
[ 1.700378] raid6: int32x4 xor() 97 MB/s
[ 1.870330] raid6: int32x8 gen() 160 MB/s
[ 2.040527] raid6: int32x8 xor() 97 MB/s
[ 2.040557] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.040557] raid6: .... xor() 97 MB/s, rmw enabled
[ 2.040557] raid6: using intx1 recovery algorithm
[ 2.062377] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.140350] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.144592] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.144683] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.145660] SCSI subsystem initialized
[ 2.145965] usbcore: registered new interface driver usbfs
[ 2.146087] usbcore: registered new interface driver hub
[ 2.146240] usbcore: registered new device driver usb
[ 2.147216] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.147277] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.147308] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.147369] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.147644] Linux video capture interface: v2.00
[ 2.148498] Advanced Linux Sound Architecture Driver Initialized.
[ 2.149749] Switched to clocksource 32k_counter
[ 2.162017] NET: Registered protocol family 2
[ 2.162780] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.162841] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.162994] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.163055] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.163116] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.163330] NET: Registered protocol family 1
[ 2.163635] RPC: Registered named UNIX socket transport module.
[ 2.163635] RPC: Registered udp transport module.
[ 2.163665] RPC: Registered tcp transport module.
[ 2.163665] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.165618] CPU PMU: Failed to parse <no-node>/interrupt-affinity[0]
[ 2.165679] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.167785] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.180053] NFS: Registering the id_resolver key type
[ 2.180114] Key type id_resolver registered
[ 2.180114] Key type id_legacy registered
[ 2.180145] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.180175] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.181671] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.182098] fuse init (API version 7.23)
[ 2.184204] bounce: pool size: 64 pages
[ 2.184234] io scheduler noop registered
[ 2.184234] io scheduler deadline registered
[ 2.184295] io scheduler cfq registered (default)
[ 2.185180] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.185394] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.187438] 58000000.dss supply vdda_video not found, using dummy regulator
[ 2.187499] OMAP DSS rev 4.0
[ 2.190216] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.192108] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.192230] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.192779] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.193298] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.107635] console [ttyO2] enabled
[ 3.111816] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.122589] [drm] Initialized drm 1.1.0 20060810
[ 3.130432] loop: module loaded
[ 3.136016] usbcore: registered new interface driver smsc95xx
[ 3.142181] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.148986] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.169830] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.175476] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.183532] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.199798] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.206146] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.213256] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.220825] usb usb1: Product: EHCI Host Controller
[ 3.225921] usb usb1: Manufacturer: Linux 4.1.0-rc2-panda ehci_hcd
[ 3.232391] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.237976] hub 1-0:1.0: USB hub found
[ 3.241943] hub 1-0:1.0: 3 ports detected
[ 3.246826] usbcore: registered new interface driver cdc_wdm
[ 3.252899] usbcore: registered new interface driver usb-storage
[ 3.259613] i2c /dev entries driver
[ 3.263427] usbcore: registered new interface driver uvcvideo
[ 3.269409] USB Video Class driver (1.1.1)
[ 3.274871] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.282440] device-mapper: uevent: version 1.0.3
[ 3.287567] device-mapper: ioctl: 4.31.0-ioctl (2015-3-12) initialised: dm-devel@redhat.com
[ 3.297119] omap_hsmmc 4809c000.mmc: unable to get vmmc regulator -517
[ 3.304412] omap_hsmmc 480d5000.mmc: unable to get vmmc regulator -517
[ 3.312316] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.318176] usbcore: registered new interface driver usbhid
[ 3.324005] usbhid: USB HID core driver
[ 3.328735] emif 4c000000.emif: emif_probe: device configured with addr = f00a8000 and IRQ247
[ 3.337921] emif 4d000000.emif: emif_probe: device configured with addr = f00aa000 and IRQ248
[ 3.348999] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.356842] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.364166] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.369812] Initializing XFRM netlink socket
[ 3.374267] NET: Registered protocol family 17
[ 3.379150] Key type dns_resolver registered
[ 3.383758] twl: not initialized
[ 3.387115] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.395507] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.403869] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.412261] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.420623] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.428985] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.437377] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.445861] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.453063] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.458709] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.466003] omap2_set_init_voltage: unable to set vdd_core
[ 3.471740] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.478942] omap2_set_init_voltage: unable to set vdd_iva
[ 3.485443] Power Management for TI OMAP4+ devices.
[ 3.490570] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.497650] ThumbEE CPU extension supported.
[ 3.502410] Registering SWP/SWPB emulation handler
[ 3.502441] SmartReflex Class3 initialized
[ 3.514312] Btrfs loaded
[ 3.519897] dmm 4e000000.dmm: initialized all PAT entries
[ 3.528167] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.553039] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.558715] twl_rtc 48070000.i2c:twl@48:rtc: Power up reset detected.
[ 3.560821] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.573211] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.582031] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.601654] twl6040 0-004b: clk32k is not handled
[ 3.609222] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.615936] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.622772] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.629364] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.730499] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.737579] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.745727] hub 1-1:1.0: USB hub found
[ 3.749786] hub 1-1:1.0: 5 ports detected
[ 3.842041] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 3.853637] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
[ 3.863616] sr_init: No PMIC hook to init smartreflex
[ 3.869079] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 3.877441] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 3.878448] mmc0: host does not support reading read-only switch, assuming write-enable
[ 3.880187] mmc0: new high speed SDHC card at address aaaa
[ 3.898193] mmcblk0: mmc0:aaaa SU16G 14.8 GiB
[ 3.903137] mmcblk0: p1 p2 p3 p4
[ 3.908172] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 3.909301] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 3.919128] mmc1: queuing unknown CIS tuple 0x91 (3 bytes)
[ 3.920196] mmc1: new SDIO card at address 0001
[ 3.944366] VUSB: disabling
[ 3.947784] VANA: disabling
[ 3.951263] VDAC: disabling
[ 3.956146] vwl1271: disabling
[ 3.959503] ALSA device list:
[ 3.962677] #0: PandaBoardES
[ 3.967376] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 3.976684] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 3.988800] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 3.997192] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.007934] devtmpfs: mounted
[ 4.011077] Freeing unused kernel memory: 276K (c086d000 - c08b2000)
[ 4.121520] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.261291] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.268066] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.279022] smsc95xx v1.0.4
[ 4.307250] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.318756] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.377075] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, 16:f0:d8:30:8e:c0
[ 4.423889] random: dd urandom read with 22 bits of entropy available
[ 9.759979] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 19.622070] Bluetooth: Core ver 2.20
[ 19.626190] NET: Registered protocol family 31
[ 19.631408] Bluetooth: HCI device and connection manager initialized
[ 19.638183] Bluetooth: HCI socket layer initialized
[ 19.643646] Bluetooth: L2CAP socket layer initialized
[ 19.649108] Bluetooth: SCO socket layer initialized
[ 25.269104] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 25.280426] NFSD: starting 90-second grace period (net c08e7100)
[ 96.001922] cfg80211: Calling CRDA to update world regulatory domain
[ 96.403594] random: nonblocking pool is initialized
[ 96.843933] wlcore: loaded
[ 99.159790] cfg80211: Calling CRDA to update world regulatory domain
[ 102.452697] cfg80211: Calling CRDA to update world regulatory domain
[ 105.633575] cfg80211: Calling CRDA to update world regulatory domain
[ 108.809753] cfg80211: Calling CRDA to update world regulatory domain
[ 111.969757] cfg80211: Calling CRDA to update world regulatory domain
[ 115.158935] cfg80211: Calling CRDA to update world regulatory domain
[ 118.333496] cfg80211: Calling CRDA to update world regulatory domain
[ 121.497375] cfg80211: Calling CRDA to update world regulatory domain
[ 124.663574] cfg80211: Calling CRDA to update world regulatory domain
[ 127.864105] cfg80211: Calling CRDA to update world regulatory domain
[ 131.036315] cfg80211: Exceeded CRDA call max attempts. Not calling CRDA
[ 145.470855] NFSD: Unable to end grace period: -110
[ 152.848144] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 156.486358] wlan0: authenticate with 90:f6:52:81:ee:70
[ 156.502441] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 156.518981] wlan0: send auth to 90:f6:52:81:ee:70 (try 2/3)
[ 156.535644] wlan0: send auth to 90:f6:52:81:ee:70 (try 3/3)
[ 156.551666] wlan0: authentication with 90:f6:52:81:ee:70 timed out
[ 160.073364] wlan0: authenticate with 90:f6:52:81:ee:70
[ 160.115600] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 160.125061] wlan0: authenticated
[ 160.129760] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 160.143859] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=2)
[ 160.162872] wlan0: associated
[ 160.215026] wlcore: Association completed.
[24177.860839] INFO: rcu_preempt self-detected stall on CPU
[24177.860839] INFO: rcu_preempt self-detected stall on CPU { 1} (t=2841 jiffies g=75395 c=75394 q=200)
[24177.860839] rcu_preempt kthread starved for 2841 jiffies!
[24177.860870] Task dump for CPU 0:
[24177.860870] swapper/0 R running 0 0 0 0x00000000
[24177.860870] Backtrace:
[24177.860900] [<c08b3f70>] (0xc08b3f70) from [<c08b2000>] (0xc08b2000)
[24177.860900] Backtrace aborted due to bad frame pointer <c08ed664>
[24177.860900] Task dump for CPU 1:
[24177.860900] swapper/1 R running 0 0 1 0x00000002
[24177.860931] Backtrace:
[24177.860931] [<c00135d4>] (dump_backtrace) from [<c00137f8>] (show_stack+0x18/0x1c)
[24177.860931] r6:800c0193 r5:00000001 r4:ee877200 r3:00000000
[24177.860992] [<c00137e0>] (show_stack) from [<c005b1e8>] (sched_show_task+0xbc/0x110)
[24177.860992] [<c005b12c>] (sched_show_task) from [<c005e650>] (dump_cpu_task+0x40/0x44)
[24177.861022] r5:c08c3b00 r4:00000001
[24177.861022] [<c005e610>] (dump_cpu_task) from [<c007ec20>] (rcu_dump_cpu_stacks+0x94/0xd0)
[24177.861053] r4:00000002 r3:00000001
[24177.861053] [<c007eb8c>] (rcu_dump_cpu_stacks) from [<c0082a7c>] (rcu_check_callbacks+0x4c8/0x93c)
[24177.861083] r8:c08b4518 r7:2e709000 r6:c08c3b00 r5:c08b1940 r4:eefba940 r3:ee89e000
[24177.861083] [<c00825b4>] (rcu_check_callbacks) from [<c00857e8>] (update_process_times+0x40/0x6c)
[24177.861114] r10:00000001 r9:eefb8400 r8:00000000 r7:000015fc r6:3b8f1e85 r5:00000000
[24177.861114] r4:ee877200
[24177.861145] [<c00857a8>] (update_process_times) from [<c0096278>] (tick_sched_handle.isra.17+0x4c/0x50)
[24177.861145] r5:ee89ff70 r4:eefb8690
[24177.861145] [<c009622c>] (tick_sched_handle.isra.17) from [<c00962d0>] (tick_sched_timer+0x54/0x98)
[24177.861175] [<c009627c>] (tick_sched_timer) from [<c00860a8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[24177.861175] r7:c009627c r6:eefb8400 r5:eefb8438 r4:eefb8690
[24177.861206] [<c008605c>] (__run_hrtimer.isra.34) from [<c0086820>] (hrtimer_interrupt+0xf8/0x284)
[24177.861206] r7:000015fc r6:3b8f1e85 r5:eefb8400 r4:eefb8400
[24177.861236] [<c0086728>] (hrtimer_interrupt) from [<c00165ec>] (twd_handler+0x38/0x48)
[24177.861236] r10:ee89e000 r9:c08b44e8 r8:00000011 r7:ee828940 r6:ee803d80 r5:c08d0208
[24177.861236] r4:00000001
[24177.861267] [<c00165b4>] (twd_handler) from [<c0079ef4>] (handle_percpu_devid_irq+0x74/0x8c)
[24177.861267] r4:eefbcf00 r3:c00165b4
[24177.861297] [<c0079e80>] (handle_percpu_devid_irq) from [<c0075e18>] (generic_handle_irq+0x34/0x44)
[24177.861328] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0079e80
[24177.861328] [<c0075de4>] (generic_handle_irq) from [<c00760f0>] (__handle_domain_irq+0x64/0xbc)
[24177.861328] r4:c08afc18 r3:0000015c
[24177.861358] [<c007608c>] (__handle_domain_irq) from [<c00094ac>] (gic_handle_irq+0x2c/0x64)
[24177.861358] r8:fa240100 r7:ee89ff70 r6:c08b478c r5:0000000d r4:fa24010c r3:ee89ff70
[24177.861389] [<c0009480>] (gic_handle_irq) from [<c0014380>] (__irq_svc+0x40/0x74)
[24177.861389] Exception stack(0xee89ff70 to 0xee89ffb8)
[24177.861389] ff60: 00000000 00000000 015c026c c002aba0
[24177.861389] ff80: c08b449c c08ae344 c066a7cc ee89ffc8 c08ed664 c08b44e8 ee89e000 ee89ffc4
[24177.861419] ffa0: ee89ffb8 ee89ffb8 c002a96c c0010b60 a00c0113 ffffffff
[24177.861419] r8:c08ed664 r7:ee89ffa4 r6:ffffffff r5:a00c0113 r4:c0010b60 r3:c002a96c
[24177.861419] [<c0010b38>] (arch_cpu_idle) from [<c006d344>] (cpu_startup_entry+0x120/0x1a4)
[24177.861480] [<c006d224>] (cpu_startup_entry) from [<c00156d8>] (secondary_start_kernel+0x130/0x13c)
[24177.861480] r7:c08f0280 r3:ee89e000
[24177.861480] [<c00155a8>] (secondary_start_kernel) from [<8000958c>] (0x8000958c)
[24177.861511] r5:00000015 r4:ae88406a
[24178.175659] { 0} (t=2841 jiffies g=75395 c=75394 q=122)
[24178.175659] rcu_preempt kthread starved for 2841 jiffies!
[24178.219055] Task dump for CPU 0:
[24178.225708] swapper/0 R running 0 0 0 0x00000000
[24178.228057] Backtrace:
[24178.235687] [<c00135d4>] (dump_backtrace) from [<c00137f8>] (show_stack+0x18/0x1c)
[24178.237274] r6:800c0193 r5:00000000 r4:c08b6ee8 r3:00000000
[24178.245666] [<c00137e0>] (show_stack) from [<c005b1e8>] (sched_show_task+0xbc/0x110)
[24178.255645] [<c005b12c>] (sched_show_task) from [<c005e650>] (dump_cpu_task+0x40/0x44)
[24178.265655] r5:c08c3b00 r4:00000000
[24178.271209] [<c005e610>] (dump_cpu_task) from [<c007ec20>] (rcu_dump_cpu_stacks+0x94/0xd0)
[24178.275665] r4:00000001 r3:00000001
[24178.275665] [<c007eb8c>] (rcu_dump_cpu_stacks) from [<c0082a7c>] (rcu_check_callbacks+0x4c8/0x93c)
[24178.283599] r8:c08b4518 r7:2e6fe000 r6:c08c3b00 r5:c08b1940 r4:eefaf940 r3:c08b2000
[24178.283599] [<c00825b4>] (rcu_check_callbacks) from [<c00857e8>] (update_process_times+0x40/0x6c)
[24178.305664] r10:00000001 r9:eefad400 r8:00000000 r7:000015fc r6:3af7c83c r5:00000000
[24178.305664] r4:c08b6ee8
[24178.319274] [<c00857a8>] (update_process_times) from [<c0096278>] (tick_sched_handle.isra.17+0x4c/0x50)
[24178.325653] r5:c08b3f28 r4:eefad690
[24178.325653] [<c009622c>] (tick_sched_handle.isra.17) from [<c00962d0>] (tick_sched_timer+0x54/0x98)
[24178.335662] [<c009627c>] (tick_sched_timer) from [<c00860a8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[24178.335662] r7:c009627c r6:eefad400 r5:eefad438 r4:eefad690
[24178.359191] [<c008605c>] (__run_hrtimer.isra.34) from [<c0086820>] (hrtimer_interrupt+0xf8/0x284)
[24178.365661] r7:000015fc r6:3af7c83c r5:eefad400 r4:eefad400
[24178.374389] [<c0086728>] (hrtimer_interrupt) from [<c00165ec>] (twd_handler+0x38/0x48)
[24178.379425] r10:c08b2000 r9:c08b44e8 r8:00000011 r7:ee828940 r6:ee803d80 r5:c08d0208
[24178.386901] r4:00000001
[24178.386901] [<c00165b4>] (twd_handler) from [<c0079ef4>] (handle_percpu_devid_irq+0x74/0x8c)
[24178.402313] r4:eefb1f00 r3:c00165b4
[24178.406066] [<c0079e80>] (handle_percpu_devid_irq) from [<c0075e18>] (generic_handle_irq+0x34/0x44)
[24178.407745] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0079e80
[24178.417327] [<c0075de4>] (generic_handle_irq) from [<c00760f0>] (__handle_domain_irq+0x64/0xbc)
[24178.425231] r4:c08afc18 r3:0000015c
[24178.432708] [<c007608c>] (__handle_domain_irq) from [<c00094ac>] (gic_handle_irq+0x2c/0x64)
[24178.436492] r8:fa240100 r7:c08b3f28 r6:c08b478c r5:0000000d r4:fa24010c r3:c08b3f28
[24178.436492] [<c0009480>] (gic_handle_irq) from [<c0014380>] (__irq_svc+0x40/0x74)
[24178.436492] Exception stack(0xc08b3f28 to 0xc08b3f70)
[24178.436492] 3f20: 00000000 00000000 01c23232 c002aba0 c08b449c c08ae344
[24178.474914] 3f40: c066a7cc c08b3f80 c08ed664 c08b44e8 c08b2000 c08b3f7c c08b3f70 c08b3f70
[24178.474914] 3f60: c002a96c c0010b60 a00c0113 ffffffff
[24178.488708] r8:c08ed664 r7:c08b3f5c r6:ffffffff r5:a00c0113 r4:c0010b60 r3:c002a96c
[24178.488708] [<c0010b38>] (arch_cpu_idle) from [<c006d344>] (cpu_startup_entry+0x120/0x1a4)
[24178.502593] [<c006d224>] (cpu_startup_entry) from [<c065d2f8>] (rest_init+0x90/0x94)
[24178.513549] r7:ffffffff r3:c08b2000
[24178.517303] [<c065d268>] (rest_init) from [<c086dcb0>] (start_kernel+0x364/0x370)
[24178.517303] r4:00000000 r3:c08b2000
[24178.525665] [<c086d94c>] (start_kernel) from [<8000807c>] (0x8000807c)
[75384.830322] INFO: rcu_preempt self-detected stall on CPU
[75384.830322] INFO: rcu_preempt self-detected stall on CPU { 1} (t=6294 jiffies g=234510 c=234509 q=200)
[75384.830352] rcu_preempt kthread starved for 6294 jiffies!
[75384.830352] Task dump for CPU 0:
[75384.830352] swapper/0 R running 0 0 0 0x00000000
[75384.830352] Backtrace:
[75384.830383] [<c08b3f70>] (0xc08b3f70) from [<c08b2000>] (0xc08b2000)
[75384.830383] Backtrace aborted due to bad frame pointer <c08ed664>
[75384.830383] Task dump for CPU 1:
[75384.830413] swapper/1 R running 0 0 1 0x00000002
[75384.830413] Backtrace:
[75384.830413] [<c00135d4>] (dump_backtrace) from [<c00137f8>] (show_stack+0x18/0x1c)
[75384.830413] r6:800c0193 r5:00000001 r4:ee877200 r3:00000000
[75384.830474] [<c00137e0>] (show_stack) from [<c005b1e8>] (sched_show_task+0xbc/0x110)
[75384.830505] [<c005b12c>] (sched_show_task) from [<c005e650>] (dump_cpu_task+0x40/0x44)
[75384.830505] r5:c08c3b00 r4:00000001
[75384.830535] [<c005e610>] (dump_cpu_task) from [<c007ec20>] (rcu_dump_cpu_stacks+0x94/0xd0)
[75384.830535] r4:00000002 r3:00000001
[75384.830535] [<c007eb8c>] (rcu_dump_cpu_stacks) from [<c0082a7c>] (rcu_check_callbacks+0x4c8/0x93c)
[75384.830566] r8:c08b4518 r7:2e709000 r6:c08c3b00 r5:c08b1940 r4:eefba940 r3:ee89e000
[75384.830566] [<c00825b4>] (rcu_check_callbacks) from [<c00857e8>] (update_process_times+0x40/0x6c)
[75384.830596] r10:00000001 r9:eefb8400 r8:00000000 r7:0000448e r6:c2868d8c r5:00000000
[75384.830596] r4:ee877200
[75384.830627] [<c00857a8>] (update_process_times) from [<c0096278>] (tick_sched_handle.isra.17+0x4c/0x50)
[75384.830627] r5:ee89ff70 r4:eefb8690
[75384.830657] [<c009622c>] (tick_sched_handle.isra.17) from [<c00962d0>] (tick_sched_timer+0x54/0x98)
[75384.830657] [<c009627c>] (tick_sched_timer) from [<c00860a8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[75384.830688] r7:c009627c r6:eefb8400 r5:eefb8438 r4:eefb8690
[75384.830688] [<c008605c>] (__run_hrtimer.isra.34) from [<c0086820>] (hrtimer_interrupt+0xf8/0x284)
[75384.830688] r7:0000448e r6:c2868d8c r5:eefb8400 r4:eefb8400
[75384.830718] [<c0086728>] (hrtimer_interrupt) from [<c00165ec>] (twd_handler+0x38/0x48)
[75384.830749] r10:ee89e000 r9:c08b44e8 r8:00000011 r7:ee828940 r6:ee803d80 r5:c08d0208
[75384.830749] r4:00000001
[75384.830749] [<c00165b4>] (twd_handler) from [<c0079ef4>] (handle_percpu_devid_irq+0x74/0x8c)
[75384.830780] r4:eefbcf00 r3:c00165b4
[75384.830780] [<c0079e80>] (handle_percpu_devid_irq) from [<c0075e18>] (generic_handle_irq+0x34/0x44)
[75384.830810] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0079e80
[75384.830810] [<c0075de4>] (generic_handle_irq) from [<c00760f0>] (__handle_domain_irq+0x64/0xbc)
[75384.830841] r4:c08afc18 r3:0000015c
[75384.830841] [<c007608c>] (__handle_domain_irq) from [<c00094ac>] (gic_handle_irq+0x2c/0x64)
[75384.830871] r8:fa240100 r7:ee89ff70 r6:c08b478c r5:0000000d r4:fa24010c r3:ee89ff70
[75384.830871] [<c0009480>] (gic_handle_irq) from [<c0014380>] (__irq_svc+0x40/0x74)
[75384.830871] Exception stack(0xee89ff70 to 0xee89ffb8)
[75384.830871] ff60: 00000000 00000000 04ae5a70 c002aba0
[75384.830902] ff80: c08b449c c08ae344 c066a7cc ee89ffc8 c08ed664 c08b44e8 ee89e000 ee89ffc4
[75384.830902] ffa0: ee89ffb8 ee89ffb8 c002a96c c0010b60 a00c0113 ffffffff
[75384.830932] r8:c08ed664 r7:ee89ffa4 r6:ffffffff r5:a00c0113 r4:c0010b60 r3:c002a96c
[75384.830932] [<c0010b38>] (arch_cpu_idle) from [<c006d344>] (cpu_startup_entry+0x120/0x1a4)
[75384.830963] [<c006d224>] (cpu_startup_entry) from [<c00156d8>] (secondary_start_kernel+0x130/0x13c)
[75384.830963] r7:c08f0280 r3:ee89e000
[75384.830993] [<c00155a8>] (secondary_start_kernel) from [<8000958c>] (0x8000958c)
[75384.830993] r5:00000015 r4:ae88406a
[75385.070953] { 0} (t=6294 jiffies g=234510 c=234509 q=200)
[75385.188903] rcu_preempt kthread starved for 6294 jiffies!
[75385.188903] Task dump for CPU 0:
[75385.197692] swapper/0 R running 0 0 0 0x00000000
[75385.200714] Backtrace:
[75385.207122] [<c00135d4>] (dump_backtrace) from [<c00137f8>] (show_stack+0x18/0x1c)
[75385.207122] r6:80010193 r5:00000000 r4:c08b6ee8 r3:00000000
[75385.215026] [<c00137e0>] (show_stack) from [<c005b1e8>] (sched_show_task+0xbc/0x110)
[75385.222717] [<c005b12c>] (sched_show_task) from [<c005e650>] (dump_cpu_task+0x40/0x44)
[75385.237304] r5:c08c3b00 r4:00000000
[75385.237304] [<c005e610>] (dump_cpu_task) from [<c007ec20>] (rcu_dump_cpu_stacks+0x94/0xd0)
[75385.237304] r4:00000001 r3:00000001
[75385.252288] [<c007eb8c>] (rcu_dump_cpu_stacks) from [<c0082a7c>] (rcu_check_callbacks+0x4c8/0x93c)
[75385.261657] r8:c08b4518 r7:2e6fe000 r6:c08c3b00 r5:c08b1940 r4:eefaf940 r3:c08b2000
[75385.261657] [<c00825b4>] (rcu_check_callbacks) from [<c00857e8>] (update_process_times+0x40/0x6c)
[75385.261657] r10:00000001 r9:eefad400 r8:00000000 r7:0000448e r6:c1eec020 r5:00000000
[75385.288360] r4:c08b6ee8
[75385.290710] [<c00857a8>] (update_process_times) from [<c0096278>] (tick_sched_handle.isra.17+0x4c/0x50)
[75385.300689] r5:c08b3f28 r4:eefad690
[75385.303955] [<c009622c>] (tick_sched_handle.isra.17) from [<c00962d0>] (tick_sched_timer+0x54/0x98)
[75385.314025] [<c009627c>] (tick_sched_timer) from [<c00860a8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[75385.314025] r7:c009627c r6:eefad400 r5:eefad438 r4:eefad690
[75385.329040] [<c008605c>] (__run_hrtimer.isra.34) from [<c0086820>] (hrtimer_interrupt+0xf8/0x284)
[75385.329040] r7:0000448e r6:c1eec020 r5:eefad400 r4:eefad400
[75385.340759] [<c0086728>] (hrtimer_interrupt) from [<c00165ec>] (twd_handler+0x38/0x48)
[75385.340759] r10:c08b2000 r9:c08b44e8 r8:00000011 r7:ee828940 r6:ee803d80 r5:c08d0208
[75385.360656] r4:00000001
[75385.360717] [<c00165b4>] (twd_handler) from [<c0079ef4>] (handle_percpu_devid_irq+0x74/0x8c)
[75385.372161] r4:eefb1f00 r3:c00165b4
[75385.372161] [<c0079e80>] (handle_percpu_devid_irq) from [<c0075e18>] (generic_handle_irq+0x34/0x44)
[75385.372161] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0079e80
[75385.393463] [<c0075de4>] (generic_handle_irq) from [<c00760f0>] (__handle_domain_irq+0x64/0xbc)
[75385.397766] r4:c08afc18 r3:0000015c
[75385.402557] [<c007608c>] (__handle_domain_irq) from [<c00094ac>] (gic_handle_irq+0x2c/0x64)
[75385.411834] r8:fa240100 r7:c08b3f28 r6:c08b478c r5:0000000d r4:fa24010c r3:c08b3f28
[75385.411834] [<c0009480>] (gic_handle_irq) from [<c0014380>] (__irq_svc+0x40/0x74)
[75385.430938] Exception stack(0xc08b3f28 to 0xc08b3f70)
[75385.430938] 3f20: 00000000 00000000 04f806ec c002aba0 c08b449c c08ae344
[75385.430938] 3f40: c066a7cc c08b3f80 c08ed664 c08b44e8 c08b2000 c08b3f7c c08b3f70 c08b3f70
[75385.444763] 3f60: c002a96c c0010b60 a0010113 ffffffff
[75385.458557] r8:c08ed664 r7:c08b3f5c r6:ffffffff r5:a0010113 r4:c0010b60 r3:c002a96c
[75385.463073] [<c0010b38>] (arch_cpu_idle) from [<c006d344>] (cpu_startup_entry+0x120/0x1a4)
[75385.471862] [<c006d224>] (cpu_startup_entry) from [<c065d2f8>] (rest_init+0x90/0x94)
[75385.480712] r7:ffffffff r3:c08b2000
[75385.487152] [<c065d268>] (rest_init) from [<c086dcb0>] (start_kernel+0x364/0x370)
[75385.490722] r4:00000000 r3:c08b2000
[75385.490722] [<c086d94c>] (start_kernel) from [<8000807c>] (0x8000807c)
[155588.092132] wlcore: Beacon loss detected. roles:0xff
[155589.730499] wlcore: Beacon loss detected. roles:0xff
[155592.953369] wlcore: Connection loss work (role_id: 0).
[155592.958862] wlan0: Connection to AP 90:f6:52:81:ee:70 lost
[155593.112762] cfg80211: Exceeded CRDA call max attempts. Not calling CRDA
[155596.586608] wlan0: authenticate with 90:f6:52:81:ee:70
[155596.631378] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[155596.639801] wlan0: authenticated
[155596.654846] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[155596.665679] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=2)
[155596.683807] wlan0: associated
[155596.722106] wlcore: Association completed.
[206266.583557] INFO: rcu_preempt self-detected stall on CPU { 0} (t=5188 jiffies g=642908 c=642907 q=118)
[206266.591064] Task dump for CPU 0:
[206266.596954] swapper/0 R running 0 0 0 0x00000000
[206266.596954] Backtrace:
[206266.606353] [<c00135d4>] (dump_backtrace) from [<c00137f8>] (show_stack+0x18/0x1c)
[206266.614349] r6:800c0193 r5:00000000 r4:c08b6ee8 r3:00000000
[206266.614349] [<c00137e0>] (show_stack) from [<c005b1e8>] (sched_show_task+0xbc/0x110)
[206266.614349] [<c005b12c>] (sched_show_task) from [<c005e650>] (dump_cpu_task+0x40/0x44)
[206266.614349] r5:c08c3b00 r4:00000000
[206266.636932] [<c005e610>] (dump_cpu_task) from [<c007ec20>] (rcu_dump_cpu_stacks+0x94/0xd0)
[206266.640777] r4:00000001 r3:00000001
[206266.653320] [<c007eb8c>] (rcu_dump_cpu_stacks) from [<c0082a7c>] (rcu_check_callbacks+0x4c8/0x93c)
[206266.653320] r8:c08b4518 r7:2e6fe000 r6:c08c3b00 r5:c08b1940 r4:eefaf940 r3:013a459a
[206266.653320] [<c00825b4>] (rcu_check_callbacks) from [<c00857e8>] (update_process_times+0x40/0x6c)
[206266.680328] r10:00000001 r9:eefad400 r8:00000000 r7:0000bb97 r6:eee58702 r5:00000000
[206266.680328] r4:c08b6ee8
[206266.680328] [<c00857a8>] (update_process_times) from [<c0096278>] (tick_sched_handle.isra.17+0x4c/0x50)
[206266.691375] r5:c08b3f28 r4:eefad690
[206266.691375] [<c009622c>] (tick_sched_handle.isra.17) from [<c00962d0>] (tick_sched_timer+0x54/0x98)
[206266.705108] [<c009627c>] (tick_sched_timer) from [<c00860a8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[206266.723815] r7:c009627c r6:eefad400 r5:eefad438 r4:eefad690
[206266.723815] [<c008605c>] (__run_hrtimer.isra.34) from [<c0086820>] (hrtimer_interrupt+0xf8/0x284)
[206266.723815] r7:0000bb97 r6:eee58702 r5:eefad400 r4:eefad400
[206266.739196] [<c0086728>] (hrtimer_interrupt) from [<c00165ec>] (twd_handler+0x38/0x48)
[206266.753570] r10:c08b2000 r9:c08b44e8 r8:00000011 r7:ee828940 r6:ee803d80 r5:c08d0208
[206266.753570] r4:00000001
[206266.761871] [<c00165b4>] (twd_handler) from [<c0079ef4>] (handle_percpu_devid_irq+0x74/0x8c)
[206266.761871] r4:eefb1f00 r3:c00165b4
[206266.761871] [<c0079e80>] (handle_percpu_devid_irq) from [<c0075e18>] (generic_handle_irq+0x34/0x44)
[206266.761871] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0079e80
[206266.761871] [<c0075de4>] (generic_handle_irq) from [<c00760f0>] (__handle_domain_irq+0x64/0xbc)
[206266.804260] r4:c08afc18 r3:0000015c
[206266.804260] [<c007608c>] (__handle_domain_irq) from [<c00094ac>] (gic_handle_irq+0x2c/0x64)
[206266.804260] r8:fa240100 r7:c08b3f28 r6:c08b478c r5:0000000d r4:fa24010c r3:c08b3f28
[206266.804260] [<c0009480>] (gic_handle_irq) from [<c0014380>] (__irq_svc+0x40/0x74)
[206266.804260] Exception stack(0xc08b3f28 to 0xc08b3f70)
[206266.838378] 3f20: 00000000 00000000 0de55728 c002aba0 c08b449c c08ae344
[206266.847015] 3f40: c066a7cc c08b3f80 c08ed664 c08b44e8 c08b2000 c08b3f7c c08b3f70 c08b3f70
[206266.855651] 3f60: c002a96c c0010b60 a00c0113 ffffffff
[206266.855651] r8:c08ed664 r7:c08b3f5c r6:ffffffff r5:a00c0113 r4:c0010b60 r3:c002a96c
[206266.869232] [<c0010b38>] (arch_cpu_idle) from [<c006d344>] (cpu_startup_entry+0x120/0x1a4)
[206266.869232] [<c006d224>] (cpu_startup_entry) from [<c065d2f8>] (rest_init+0x90/0x94)
[206266.869232] r7:ffffffff r3:c08b2000
[206266.886138] [<c065d268>] (rest_init) from [<c086dcb0>] (start_kernel+0x364/0x370)
[206266.886138] r4:00000000 r3:c08b2000
[206266.901702] [<c086d94c>] (start_kernel) from [<8000807c>] (0x8000807c)
[206266.901702] INFO: rcu_preempt detected stalls on CPUs/tasks: {} (detected by 1, t=5221 jiffies, g=642908, c=642907, q=127)
[206266.919830] All QSes seen, last rcu_preempt kthread activity 33 (20596155-20596122), jiffies_till_next_fqs=1, root ->qsmask 0x0
[206266.932189] swapper/1 R running 0 0 1 0x00000002
[206266.938812] Backtrace:
[206266.941741] [<c00135d4>] (dump_backtrace) from [<c00137f8>] (show_stack+0x18/0x1c)
[206266.949066] r6:c08c3b00 r5:00000001 r4:ee877200 r3:00000000
[206266.955749] [<c00137e0>] (show_stack) from [<c005b1e8>] (sched_show_task+0xbc/0x110)
[206266.963989] [<c005b12c>] (sched_show_task) from [<c0082ed8>] (rcu_check_callbacks+0x924/0x93c)
[206266.972351] r5:c08b1940 r4:eefba940
[206266.976837] [<c00825b4>] (rcu_check_callbacks) from [<c00857e8>] (update_process_times+0x40/0x6c)
[206266.985900] r10:00000001 r9:eefb8400 r8:00000000 r7:0000bb97 r6:ef590308 r5:00000000
[206266.993957] r4:ee877200
[206266.996337] [<c00857a8>] (update_process_times) from [<c0096278>] (tick_sched_handle.isra.17+0x4c/0x50)
[206267.007171] r5:ee89ff70 r4:eefb8690
[206267.009887] [<c009622c>] (tick_sched_handle.isra.17) from [<c00962d0>] (tick_sched_timer+0x54/0x98)
[206267.019805] [<c009627c>] (tick_sched_timer) from [<c00860a8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[206267.029754] r7:c009627c r6:eefb8400 r5:eefb8438 r4:eefb8690
[206267.035766] [<c008605c>] (__run_hrtimer.isra.34) from [<c0086820>] (hrtimer_interrupt+0xf8/0x284)
[206267.044982] r7:0000bb97 r6:ef590308 r5:eefb8400 r4:eefb8400
[206267.050537] [<c0086728>] (hrtimer_interrupt) from [<c00165ec>] (twd_handler+0x38/0x48)
[206267.059112] r10:ee89e000 r9:c08b44e8 r8:00000011 r7:ee828940 r6:ee803d80 r5:c08d0208
[206267.066833] r4:00000001
[206267.070098] [<c00165b4>] (twd_handler) from [<c0079ef4>] (handle_percpu_devid_irq+0x74/0x8c)
[206267.079040] r4:eefbcf00 r3:c00165b4
[206267.082977] [<c0079e80>] (handle_percpu_devid_irq) from [<c0075e18>] (generic_handle_irq+0x34/0x44)
[206267.092834] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0079e80
[206267.101043] [<c0075de4>] (generic_handle_irq) from [<c00760f0>] (__handle_domain_irq+0x64/0xbc)
[206267.110137] r4:c08afc18 r3:0000015c
[206267.111602] [<c007608c>] (__handle_domain_irq) from [<c00094ac>] (gic_handle_irq+0x2c/0x64)
[206267.121032] r8:fa240100 r7:ee89ff70 r6:c08b478c r5:0000000d r4:fa24010c r3:ee89ff70
[206267.131042] [<c0009480>] (gic_handle_irq) from [<c0014380>] (__irq_svc+0x40/0x74)
[206267.131072] Exception stack(0xee89ff70 to 0xee89ffb8)
[206267.138977] ff60: 00000000 00000000 0c75c342 c002aba0
[206267.138977] ff80: c08b449c c08ae344 c066a7cc ee89ffc8 c08ed664 c08b44e8 ee89e000 ee89ffc4
[206267.161590] ffa0: ee89ffb8 ee89ffb8 c002a96c c0010b60 a00e0113 ffffffff
[206267.168579] r8:c08ed664 r7:ee89ffa4 r6:ffffffff r5:a00e0113 r4:c0010b60 r3:c002a96c
[206267.171051] [<c0010b38>] (arch_cpu_idle) from [<c006d344>] (cpu_startup_entry+0x120/0x1a4)
[206267.181060] [<c006d224>] (cpu_startup_entry) from [<c00156d8>] (secondary_start_kernel+0x130/0x13c)
[206267.191040] r7:c08f0280 r3:ee89e000
[206267.195068] [<c00155a8>] (secondary_start_kernel) from [<8000958c>] (0x8000958c)
[206267.195068] r5:00000015 r4:ae88406a
[277765.790222] INFO: rcu_preempt self-detected stall on CPU
[277765.792022] INFO: rcu_preempt detected stalls on CPUs/tasks:
[277765.792022] {
[277765.792022] 0
[277765.792053] }
[277765.792053] (detected by 1, t=4614 jiffies, g=865842, c=865841, q=106)
[277765.792053] Task dump for CPU 0:
[277765.792053] swapper/0 R
[277765.792053] running
[277765.792053] 0 0 0 0x00000000
[277765.792083] Backtrace:
[277765.792083] [<c08b3f70>] (0xc08b3f70) from [<c08b2000>] (0xc08b2000)
[277765.792083] Backtrace aborted due to bad frame pointer <c08ed664>
[277765.792114] rcu_preempt kthread starved for 4614 jiffies!
[277765.822021] {
[277765.822021] 0} (t=4614 jiffies g=865842 c=865841 q=106)
[277765.842956] Task dump for CPU 0:
[277765.842956] swapper/0 R running 0 0 0 0x00000000
[277765.855499] Backtrace:
[277765.855499] [<c00135d4>] (dump_backtrace) from [<c00137f8>] (show_stack+0x18/0x1c)
[277765.863891] r6:800c0193 r5:00000000 r4:c08b6ee8 r3:00000000
[277765.872192] [<c00137e0>] (show_stack) from [<c005b1e8>] (sched_show_task+0xbc/0x110)
[277765.872192] [<c005b12c>] (sched_show_task) from [<c005e650>] (dump_cpu_task+0x40/0x44)
[277765.882019] r5:c08c3b00 r4:00000000
[277765.892578] [<c005e610>] (dump_cpu_task) from [<c007ec20>] (rcu_dump_cpu_stacks+0x94/0xd0)
[277765.892578] r4:00000001 r3:00000001
[277765.902679] [<c007eb8c>] (rcu_dump_cpu_stacks) from [<c0082a7c>] (rcu_check_callbacks+0x4c8/0x93c)
[277765.912017] r8:c08b4518 r7:2e6fe000 r6:c08c3b00 r5:c08b1940 r4:eefaf940 r3:01a75edf
[277765.922790] [<c00825b4>] (rcu_check_callbacks) from [<c00857e8>] (update_process_times+0x40/0x6c)
[277765.932006] r10:00000001 r9:eefad400 r8:00000000 r7:0000fc9f r6:138fdc4d r5:00000000
[277765.940429] r4:c08b6ee8
[277765.941223] [<c00857a8>] (update_process_times) from [<c0096278>] (tick_sched_handle.isra.17+0x4c/0x50)
[277765.943572] r5:c08b3f28 r4:eefad690
[277765.943572] [<c009622c>] (tick_sched_handle.isra.17) from [<c00962d0>] (tick_sched_timer+0x54/0x98)
[277765.966461] [<c009627c>] (tick_sched_timer) from [<c00860a8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[277765.975128] r7:c009627c r6:eefad400 r5:eefad438 r4:eefad690
[277765.981658] [<c008605c>] (__run_hrtimer.isra.34) from [<c0086820>] (hrtimer_interrupt+0xf8/0x284)
[277765.982360] r7:0000fc9f r6:138fdc4d r5:eefad400 r4:eefad400
[277765.997039] [<c0086728>] (hrtimer_interrupt) from [<c00165ec>] (twd_handler+0x38/0x48)
[277765.997039] r10:c08b2000 r9:c08b44e8 r8:00000011 r7:ee828940 r6:ee803d80 r5:c08d0208
[277766.012023] r4:00000001
[277766.012023] [<c00165b4>] (twd_handler) from [<c0079ef4>] (handle_percpu_devid_irq+0x74/0x8c)
[277766.025329] r4:eefb1f00 r3:c00165b4
[277766.025329] [<c0079e80>] (handle_percpu_devid_irq) from [<c0075e18>] (generic_handle_irq+0x34/0x44)
[277766.025329] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0079e80
[277766.046905] [<c0075de4>] (generic_handle_irq) from [<c00760f0>] (__handle_domain_irq+0x64/0xbc)
[277766.052032] r4:c08afc18 r3:0000015c
[277766.052032] [<c007608c>] (__handle_domain_irq) from [<c00094ac>] (gic_handle_irq+0x2c/0x64)
[277766.068725] r8:fa240100 r7:c08b3f28 r6:c08b478c r5:0000000d r4:fa24010c r3:c08b3f28
[277766.076934] [<c0009480>] (gic_handle_irq) from [<c0014380>] (__irq_svc+0x40/0x74)
[277766.078582] Exception stack(0xc08b3f28 to 0xc08b3f70)
[277766.090209] 3f20: 00000000 00000000 12d09826 c002aba0 c08b449c c08ae344
[277766.094085] 3f40: c066a7cc c08b3f80 c08ed664 c08b44e8 c08b2000 c08b3f7c c08b3f70 c08b3f70
[277766.103790] 3f60: c002a96c c0010b60 a00c0113 ffffffff
[277766.112823] r8:c08ed664 r7:c08b3f5c r6:ffffffff r5:a00c0113 r4:c0010b60 r3:c002a96c
[277766.120239] [<c0010b38>] (arch_cpu_idle) from [<c006d344>] (cpu_startup_entry+0x120/0x1a4)
[277766.122009] [<c006d224>] (cpu_startup_entry) from [<c065d2f8>] (rest_init+0x90/0x94)
[277766.137939] r7:ffffffff r3:c08b2000
[277766.141784] [<c065d268>] (rest_init) from [<c086dcb0>] (start_kernel+0x364/0x370)
[277766.142456] r4:00000000 r3:c08b2000
[277766.142456] [<c086d94c>] (start_kernel) from [<8000807c>] (0x8000807c)
[289205.763885] wlcore: Beacon loss detected. roles:0xff
[289210.571960] wlcore: Connection loss work (role_id: 0).
[289210.571990] wlan0: Connection to AP 90:f6:52:81:ee:70 lost
[289210.733856] cfg80211: Exceeded CRDA call max attempts. Not calling CRDA
[289214.159362] wlan0: authenticate with 90:f6:52:81:ee:70
[289214.201843] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[289214.210449] wlan0: authenticated
[289214.231689] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[289214.242523] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=2)
[289214.262969] wlan0: associated
[289214.303192] wlcore: Association completed.
[315115.359436] INFO: rcu_preempt self-detected stall on CPU { 1} (t=3625 jiffies g=982065 c=982064 q=28)
[315115.366943] INFO: rcu_preempt detected stalls on CPUs/tasks: { 1} (detected by 0, t=3625 jiffies, g=982065, c=982064, q=28)
[315115.366943] Task dump for CPU 1:
[315115.366973] swapper/1 R running 0 0 1 0x00000000
[315115.366973] Backtrace:
[315115.366973] [<ee89ffb8>] (0xee89ffb8) from [<ee89e000>] (0xee89e000)
[315115.367004] Backtrace aborted due to bad frame pointer <c08ed664>
[315115.367004] rcu_preempt kthread starved for 3625 jiffies!
[315115.412689] rcu_preempt kthread starved for 3625 jiffies!
[315115.418426] Task dump for CPU 1:
[315115.421874] swapper/1 R running 0 0 1 0x00000000
[315115.428619] Backtrace:
[315115.431182] [<c00135d4>] (dump_backtrace) from [<c00137f8>] (show_stack+0x18/0x1c)
[315115.439270] r6:80010193 r5:00000001 r4:ee877200 r3:00000000
[315115.445312] [<c00137e0>] (show_stack) from [<c005b1e8>] (sched_show_task+0xbc/0x110)
[315115.453491] [<c005b12c>] (sched_show_task) from [<c005e650>] (dump_cpu_task+0x40/0x44)
[315115.461791] r5:c08c3b00 r4:00000001
[315115.465698] [<c005e610>] (dump_cpu_task) from [<c007ec20>] (rcu_dump_cpu_stacks+0x94/0xd0)
[315115.474090] r4:00000002 r3:00000001
[315115.477416] [<c007eb8c>] (rcu_dump_cpu_stacks) from [<c0082a7c>] (rcu_check_callbacks+0x4c8/0x93c)
[315115.487701] r8:c08b4518 r7:2e709000 r6:c08c3b00 r5:c08b1940 r4:eefba940 r3:ee89e000
[315115.495819] [<c00825b4>] (rcu_check_callbacks) from [<c00857e8>] (update_process_times+0x40/0x6c)
[315115.504486] r10:00000001 r9:eefb8400 r8:00000000 r7:00011e97 r6:27c6bad8 r5:00000000
[315115.513549] r4:ee877200
[315115.515411] [<c00857a8>] (update_process_times) from [<c0096278>] (tick_sched_handle.isra.17+0x4c/0x50)
[315115.526214] r5:ee89ff70 r4:eefb8690
[315115.530059] [<c009622c>] (tick_sched_handle.isra.17) from [<c00962d0>] (tick_sched_timer+0x54/0x98)
[315115.539489] [<c009627c>] (tick_sched_timer) from [<c00860a8>] (__run_hrtimer.isra.34+0x4c/0xdc)
[315115.548767] r7:c009627c r6:eefb8400 r5:eefb8438 r4:eefb8690
[315115.553802] [<c008605c>] (__run_hrtimer.isra.34) from [<c0086820>] (hrtimer_interrupt+0xf8/0x284)
[315115.560760] r7:00011e97 r6:27c6bad8 r5:eefb8400 r4:eefb8400
[315115.560760] [<c0086728>] (hrtimer_interrupt) from [<c00165ec>] (twd_handler+0x38/0x48)
[315115.578521] r10:ee89e000 r9:c08b44e8 r8:00000011 r7:ee828940 r6:ee803d80 r5:c08d0208
[315115.578521] r4:00000001
[315115.578521] [<c00165b4>] (twd_handler) from [<c0079ef4>] (handle_percpu_devid_irq+0x74/0x8c)
[315115.578521] r4:eefbcf00 r3:c00165b4
[315115.578521] [<c0079e80>] (handle_percpu_devid_irq) from [<c0075e18>] (generic_handle_irq+0x34/0x44)
[315115.611846] r8:ee808000 r7:00000001 r6:00000000 r5:00000000 r4:00000011 r3:c0079e80
[315115.620056] [<c0075de4>] (generic_handle_irq) from [<c00760f0>] (__handle_domain_irq+0x64/0xbc)
[315115.629211] r4:c08afc18 r3:0000015c
[315115.633056] [<c007608c>] (__handle_domain_irq) from [<c00094ac>] (gic_handle_irq+0x2c/0x64)
[315115.636474] r8:fa240100 r7:ee89ff70 r6:c08b478c r5:0000000d r4:fa24010c r3:ee89ff70
[315115.636474] [<c0009480>] (gic_handle_irq) from [<c0014380>] (__irq_svc+0x40/0x74)
[315115.656494] Exception stack(0xee89ff70 to 0xee89ffb8)
[315115.661560] ff60: 00000000 00000000 1323313e c002aba0
[315115.666625] ff80: c08b449c c08ae344 c066a7cc ee89ffc8 c08ed664 c08b44e8 ee89e000 ee89ffc4
[315115.676483] ffa0: ee89ffb8 ee89ffb8 c002a96c c0010b60 a0010113 ffffffff
[315115.687591] r8:c08ed664 r7:ee89ffa4 r6:ffffffff r5:a0010113 r4:c0010b60 r3:c002a96c
[315115.687591] [<c0010b38>] (arch_cpu_idle) from [<c006d344>] (cpu_startup_entry+0x120/0x1a4)
[315115.696777] [<c006d224>] (cpu_startup_entry) from [<c00156d8>] (secondary_start_kernel+0x130/0x13c)
[315115.696777] r7:c08f0280 r3:ee89e000
[315115.716491] [<c00155a8>] (secondary_start_kernel) from [<8000958c>] (0x8000958c)
[315115.716491] r5:00000015 r4:ae88406a
$
$
$
$
[-- Attachment #5: dmesg-4.6-rc1-1 --]
[-- Type: application/octet-stream, Size: 23933 bytes --]
$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.6.0-rc1-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #1 SMP PREEMPT Sun Mar 27 11:33:30 AEDT 2016
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI OMAP4 PandaBoard-ES
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] OMAP4: Map 0xbfe00000 to fe600000 for dram barrier
[ 0.000000] On node 0 totalpages: 261632
[ 0.000000] free_area_init_node: node 0, pgdat c0c3e200, node_mem_map ef7f9000
[ 0.000000] Normal zone: 1536 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 196608 pages, LIFO batch:31
[ 0.000000] HighMem zone: 65024 pages, LIFO batch:15
[ 0.000000] OMAP4460 ES1.1
[ 0.000000] percpu: Embedded 12 pages/cpu @ef7ab000 s18752 r8192 d22208 u49152
[ 0.000000] pcpu-alloc: s18752 r8192 d22208 u49152 alloc=12*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
[ 0.000000] Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1025320K/1046528K available (7172K kernel code, 252K rwdata, 2172K rodata, 1024K init, 292K bss, 21208K reserved, 0K cma-reserved, 260096K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc0a200e4 (10337 kB)
.init : 0xc0b00000 - 0xc0c00000 (1024 kB)
.data : 0xc0c00000 - 0xc0c3f200 ( 253 kB)
.bss : 0xc0c41000 - 0xc0c8a200 ( 293 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e070000 -> 0x3e470000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x4e470000
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node dss_fck
[ 0.000000] ti_dt_clocks_register: failed to lookup clock node bandgap_fclk
[ 0.000000] OMAP clockevent source: timer1 at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000030] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.000030] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000885] Console: colour dummy device 80x30
[ 0.000915] Calibrating delay loop... 1397.55 BogoMIPS (lpj=6987776)
[ 0.089202] pid_max: default: 32768 minimum: 301
[ 0.089263] Security Framework initialized
[ 0.089324] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089324] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.089965] CPU: Testing write buffer coherency: ok
[ 0.090179] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090240] Setting up static identity map for 0x80100000 - 0x80100058
[ 0.229187] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.229309] Brought up 2 CPUs
[ 0.229309] SMP: Total of 2 processors activated (2795.11 BogoMIPS).
[ 0.229309] CPU: All CPU(s) started in SVC mode.
[ 0.230255] devtmpfs: initialized
[ 0.247283] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.247772] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.247955] xor: measuring software checksum speed
[ 0.339172] arm4regs : 1006.000 MB/sec
[ 0.439178] 8regs : 804.400 MB/sec
[ 0.539184] 32regs : 760.800 MB/sec
[ 0.539184] xor: using function: arm4regs (1006.000 MB/sec)
[ 0.539215] pinctrl core: initialized pinctrl subsystem
[ 0.541259] NET: Registered protocol family 16
[ 0.542053] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.543762] omap_hwmod: l3_main_3 using broken dt data from ocp
[ 0.545288] omap_hwmod: l3_main_2 using broken dt data from ocp
[ 0.650451] OMAP GPIO hardware version 0.1
[ 0.656890] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 0.656921] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 0.657440] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.657806] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.658172] irq: no irq domain found for /ocp/l4@4a000000/scm@100000/pinmux@40 !
[ 0.670013] platform 4b501000.aes: Cannot lookup hwmod 'aes'
[ 0.670379] platform 480a5000.des: Cannot lookup hwmod 'des'
[ 0.676391] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.676391] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.677032] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.677246] OMAP DMA hardware revision 0.0
[ 0.919372] raid6: int32x1 gen() 103 MB/s
[ 1.089447] raid6: int32x1 xor() 83 MB/s
[ 1.259277] raid6: int32x2 gen() 134 MB/s
[ 1.429260] raid6: int32x2 xor() 98 MB/s
[ 1.599304] raid6: int32x4 gen() 145 MB/s
[ 1.769409] raid6: int32x4 xor() 98 MB/s
[ 1.939239] raid6: int32x8 gen() 160 MB/s
[ 2.109436] raid6: int32x8 xor() 94 MB/s
[ 2.109436] raid6: using algorithm int32x8 gen() 160 MB/s
[ 2.109436] raid6: .... xor() 94 MB/s, rmw enabled
[ 2.109466] raid6: using intx1 recovery algorithm
[ 2.115570] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[ 2.189331] reg-fixed-voltage wl12xx_vmmc: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_wl12xx_gpio, deferring probe
[ 2.193542] omap-iommu 4a066000.mmu: 4a066000.mmu registered
[ 2.193664] omap-iommu 55082000.mmu: 55082000.mmu registered
[ 2.195770] SCSI subsystem initialized
[ 2.196044] usbcore: registered new interface driver usbfs
[ 2.196197] usbcore: registered new interface driver hub
[ 2.196350] usbcore: registered new device driver usb
[ 2.197296] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c1_pins, deferring probe
[ 2.197357] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c2_pins, deferring probe
[ 2.197387] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c3_pins, deferring probe
[ 2.197448] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/l4@4a000000/scm@100000/pinmux@40/pinmux_i2c4_pins, deferring probe
[ 2.197692] Linux video capture interface: v2.00
[ 2.198455] Advanced Linux Sound Architecture Driver Initialized.
[ 2.209503] clocksource: Switched to clocksource 32k_counter
[ 2.227111] NET: Registered protocol family 2
[ 2.227691] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 2.227783] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 2.227935] TCP: Hash tables configured (established 8192 bind 8192)
[ 2.227996] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 2.228057] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 2.228271] NET: Registered protocol family 1
[ 2.228637] RPC: Registered named UNIX socket transport module.
[ 2.228637] RPC: Registered udp transport module.
[ 2.228668] RPC: Registered tcp transport module.
[ 2.228668] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.230987] hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
[ 2.234039] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 2.235137] workingset: timestamp_bits=28 max_order=18 bucket_order=0
[ 2.246826] NFS: Registering the id_resolver key type
[ 2.246856] Key type id_resolver registered
[ 2.246887] Key type id_legacy registered
[ 2.246887] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.246917] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 2.248474] ntfs: driver 2.1.32 [Flags: R/O].
[ 2.248870] fuse init (API version 7.24)
[ 2.252868] jitterentropy: Initialization failed with host not compliant with requirements: 2
[ 2.252929] bounce: pool size: 64 pages
[ 2.252960] io scheduler noop registered
[ 2.252990] io scheduler deadline registered
[ 2.253021] io scheduler cfq registered (default)
[ 2.253906] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
[ 2.254119] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
[ 2.257263] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.259216] omap_uart 4806a000.serial: no wakeirq for uart0
[ 2.259368] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 226, base_baud = 3000000) is a OMAP UART0
[ 2.260467] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 227, base_baud = 3000000) is a OMAP UART1
[ 2.260955] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 228, base_baud = 3000000) is a OMAP UART2
[ 3.164947] console [ttyO2] enabled
[ 3.169128] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 229, base_baud = 3000000) is a OMAP UART3
[ 3.180175] [drm] Initialized drm 1.1.0 20060810
[ 3.186950] 58000000.dss supply vdda_video not found, using dummy regulator
[ 3.194335] OMAP DSS rev 4.0
[ 3.197479] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[ 3.205810] omapdss_dss 58000000.dss: bound 58005000.encoder (ops dsi_component_ops)
[ 3.214538] omapdss_dss 58000000.dss: bound 58006000.encoder (ops hdmi4_component_ops)
[ 3.246551] loop: module loaded
[ 3.252960] usbcore: registered new interface driver smsc95xx
[ 3.259002] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.265930] ehci-omap: OMAP-EHCI Host Controller driver
[ 3.289611] ehci-omap 4a064c00.ehci: EHCI Host Controller
[ 3.295288] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[ 3.303375] ehci-omap 4a064c00.ehci: irq 336, io mem 0x4a064c00
[ 3.329559] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[ 3.335937] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 3.343048] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.350646] usb usb1: Product: EHCI Host Controller
[ 3.355743] usb usb1: Manufacturer: Linux 4.6.0-rc1-panda ehci_hcd
[ 3.362213] usb usb1: SerialNumber: 4a064c00.ehci
[ 3.367858] hub 1-0:1.0: USB hub found
[ 3.371826] hub 1-0:1.0: 3 ports detected
[ 3.376770] usbcore: registered new interface driver cdc_wdm
[ 3.382843] usbcore: registered new interface driver usb-storage
[ 3.389556] i2c /dev entries driver
[ 3.393341] usbcore: registered new interface driver uvcvideo
[ 3.399353] USB Video Class driver (1.1.1)
[ 3.404815] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 3.412353] device-mapper: uevent: version 1.0.3
[ 3.417510] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com
[ 3.490600] hidraw: raw HID events driver (C) Jiri Kosina
[ 3.496459] usbcore: registered new interface driver usbhid
[ 3.502288] usbhid: USB HID core driver
[ 3.507019] emif 4c000000.emif: emif_probe: device configured with addr = f08a8000 and IRQ247
[ 3.516326] emif 4d000000.emif: emif_probe: device configured with addr = f08aa000 and IRQ248
[ 3.527160] omap-abe-twl6040 sound: ASoC: CODEC DAI twl6040-legacy not registered
[ 3.535125] omap-abe-twl6040 sound: snd_soc_register_card() failed: -517
[ 3.542602] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.548309] Initializing XFRM netlink socket
[ 3.552856] NET: Registered protocol family 17
[ 3.557800] Key type dns_resolver registered
[ 3.562499] twl: not initialized
[ 3.565917] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.574523] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.583038] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.591522] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.600036] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.608489] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[ 3.616973] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[ 3.625488] omap2_set_init_voltage: unable to find boot up OPP for vdd_mpu
[ 3.633026] omap2_set_init_voltage: unable to set vdd_mpu
[ 3.638763] omap2_set_init_voltage: unable to find boot up OPP for vdd_core
[ 3.646148] omap2_set_init_voltage: unable to set vdd_core
[ 3.651977] omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
[ 3.659240] omap2_set_init_voltage: unable to set vdd_iva
[ 3.665863] Power Management for TI OMAP4+ devices.
[ 3.671051] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
[ 3.678253] ThumbEE CPU extension supported.
[ 3.682861] Registering SWP/SWPB emulation handler
[ 3.682861] SmartReflex Class3 initialized
[ 3.692321] usb 1-1: new high-speed USB device number 2 using ehci-omap
[ 3.721740] Btrfs loaded
[ 3.726898] dmm 4e000000.dmm: initialized all PAT entries
[ 3.734802] Skipping twl internal clock init and using bootloader value (unknown osc rate)
[ 3.760131] twl 0-0048: PIH (irq 340) nested IRQs
[ 3.766510] twl_rtc 48070000.i2c:twl@48:rtc: Enabling TWL-RTC
[ 3.775238] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48 as rtc0
[ 3.794952] twl6040 0-004b: clk32k is not handled
[ 3.802764] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
[ 3.809509] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
[ 3.816345] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
[ 3.822998] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
[ 3.869873] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 3.876983] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.885345] hub 1-1:1.0: USB hub found
[ 3.889373] hub 1-1:1.0: 5 ports detected
[ 4.014770] omap_hsmmc 480d5000.mmc: card claims to support voltages below defined range
[ 4.027008] omap-abe-twl6040 sound: twl6040-legacy <-> 40132000.mcpdm mapping ok
[ 4.037994] twl_rtc 48070000.i2c:twl@48:rtc: setting system clock to 2016-03-27 03:43:01 UTC (1459050181)
[ 4.048248] sr_init: No PMIC hook to init smartreflex
[ 4.053710] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized
[ 4.062255] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized
[ 4.070648] smartreflex smartreflex.2: omap_sr_probe: SmartReflex driver initialized
[ 4.084228] mmc1: new SDIO card at address 0001
[ 4.088562] mmc0: host does not support reading read-only switch, assuming write-enable
[ 4.097808] mmc0: new high speed SDHC card at address e624
[ 4.105590] VDAC: disabling
[ 4.105621] mmcblk0: mmc0:e624 SL32G 28.8 GiB
[ 4.113769] VANA: disabling
[ 4.117187] VUSB: disabling
[ 4.120330] ALSA device list:
[ 4.123687] #0: PandaBoardES
[ 4.142059] mmcblk0: p1 p2 p3 p4
[ 4.157867] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 4.167053] EXT4-fs (mmcblk0p2): mounting ext2 file system using the ext4 subsystem
[ 4.179565] usb 1-1.1: new high-speed USB device number 3 using ehci-omap
[ 4.202423] EXT4-fs (mmcblk0p2): mounted filesystem without journal. Opts: (null)
[ 4.213623] VFS: Mounted root (ext2 filesystem) readonly on device 179:2.
[ 4.226104] devtmpfs: mounted
[ 4.230468] Freeing unused kernel memory: 1024K (c0b00000 - c0c00000)
[ 4.310241] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.310424] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.328155] smsc95xx v1.0.4
[ 4.429565] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-4a064c00.ehci-1.1, smsc95xx USB 2.0 Ethernet, b6:f3:10:bf:55:b0
[ 4.605651] EXT4-fs (mmcblk0p2): warning: mounting unchecked fs, running e2fsck is recommended
[ 4.656311] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 4.794708] random: dd urandom read with 30 bits of entropy available
[ 10.685974] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 20.529205] Bluetooth: Core ver 2.21
[ 20.534759] NET: Registered protocol family 31
[ 20.539611] Bluetooth: HCI device and connection manager initialized
[ 20.548461] Bluetooth: HCI socket layer initialized
[ 20.553710] Bluetooth: L2CAP socket layer initialized
[ 20.559112] Bluetooth: SCO socket layer initialized
[ 28.149871] NFSD: the nfsdcld client tracking upcall will be removed in 3.10. Please transition to using nfsdcltrack.
[ 28.161163] NFSD: starting 90-second grace period (net c0c38640)
[ 49.311920] random: nonblocking pool is initialized
[ 54.244049] Adding 2097148k swap on /dev/mmcblk0p3. Priority:-1 extents:1 across:2097148k SS
[ 76.179260] wlcore: loaded
[ 95.387237] wlcore: firmware booted (Rev 6.3.10.0.133)
[ 98.985443] wlan0: authenticate with 90:f6:52:81:ee:70
[ 99.049316] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[ 99.057800] wlan0: authenticated
[ 99.069549] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[ 99.082092] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=2)
[ 99.097503] wlan0: associated
[ 99.163055] wlcore: Association completed.
[ 148.309600] NFSD: Unable to end grace period: -110
[98048.073974] wlcore: Beacon loss detected. roles:0xff
[98052.911804] wlcore: Connection loss work (role_id: 0).
[98052.917266] wlan0: Connection to AP 90:f6:52:81:ee:70 lost
[98056.666137] wlan0: authenticate with 90:f6:52:81:ee:70
[98056.724365] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[98056.732818] wlan0: authenticated
[98056.750274] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[98056.760955] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=2)
[98056.777801] wlan0: associated
[98056.823883] wlcore: Association completed.
[114984.437530] wlcore: Beacon loss detected. roles:0xff
[114989.247375] wlcore: Connection loss work (role_id: 0).
[114989.252929] wlan0: Connection to AP 90:f6:52:81:ee:70 lost
[114992.852569] wlan0: authenticate with 90:f6:52:81:ee:70
[114992.887725] wlan0: send auth to 90:f6:52:81:ee:70 (try 1/3)
[114992.896179] wlan0: authenticated
[114992.911712] wlan0: associate with 90:f6:52:81:ee:70 (try 1/3)
[114992.922546] wlan0: RX AssocResp from 90:f6:52:81:ee:70 (capab=0x431 status=0 aid=2)
[114992.938385] wlan0: associated
[114992.989105] wlcore: Association completed.
[221959.831085] INFO: rcu_preempt self-detected stall on CPU
[221959.836853] 0-...: (1 GPs behind) idle=c17/1/0 softirq=1491142/1491142 fqs=0
[221959.839813] (t=0 jiffies g=690698 c=690697 q=157)
[221959.849853] Task dump for CPU 0:
[221959.849853] swapper/0 R running 0 0 0 0x00000000
[221959.849853] Backtrace:
[221959.861785] [<c010bf88>] (dump_backtrace) from [<c010c184>] (show_stack+0x18/0x1c)
[221959.871002] r7:c0c02518 r6:800c0193 r5:00000000 r4:c0c05180
[221959.871002] [<c010c16c>] (show_stack) from [<c01540d8>] (sched_show_task+0xbc/0x110)
[221959.880615] [<c015401c>] (sched_show_task) from [<c0156534>] (dump_cpu_task+0x40/0x44)
[221959.893890] r5:c0c12640 r4:00000000
[221959.896209] [<c01564f4>] (dump_cpu_task) from [<c017c9ec>] (rcu_dump_cpu_stacks+0x9c/0xdc)
[221959.896209] r5:c0c12640 r4:00000001
[221959.910522] [<c017c950>] (rcu_dump_cpu_stacks) from [<c0180984>] (rcu_check_callbacks+0x500/0x8e4)
[221959.910522] r9:c0c12640 r8:c0c02634 r7:2ec64000 r6:c0b4b640 r5:c0c12640 r4:ef7af640
[221959.920715] [<c0180484>] (rcu_check_callbacks) from [<c0183c98>] (update_process_times+0x40/0x6c)
[221959.937896] r10:c0195794 r9:00000001 r8:ef7abc8c r7:0000c9de r6:d8aeb384 r5:00000000
[221959.945831] r4:c0c05180
[221959.949096] [<c0183c58>] (update_process_times) from [<c0195790>] (tick_sched_handle+0x50/0x54)
[221959.949096] r5:c0c01f10 r4:ef7abe80
[221959.962280] [<c0195740>] (tick_sched_handle) from [<c01957e4>] (tick_sched_timer+0x50/0x94)
[221959.965820] [<c0195794>] (tick_sched_timer) from [<c01846dc>] (__hrtimer_run_queues+0x110/0x1a4)
[221959.965820] r7:00000000 r6:ef7abc80 r5:ef7abe80 r4:ef7abc40
[221959.986724] [<c01845cc>] (__hrtimer_run_queues) from [<c0184d64>] (hrtimer_interrupt+0xac/0x1f8)
[221959.986724] r10:ef7abcb8 r9:ef7abcd8 r8:ef7abc54 r7:ef7abcf8 r6:ffffffff r5:00000003
[221960.004516] r4:ef7abc40
[221960.007293] [<c0184cb8>] (hrtimer_interrupt) from [<c010f20c>] (twd_handler+0x38/0x48)
[221960.007659] r10:efffc080 r9:fa241100 r8:00000011 r7:ef02a340 r6:c0c027a0 r5:ef005cc0
[221960.024169] r4:00000001
[221960.024169] [<c010f1d4>] (twd_handler) from [<c0176eac>] (handle_percpu_devid_irq+0x74/0x8c)
[221960.029113] r5:ef005cc0 r4:ef7b1a80
[221960.039886] [<c0176e38>] (handle_percpu_devid_irq) from [<c0172884>] (generic_handle_irq+0x2c/0x3c)
[221960.039886] r9:fa241100 r8:ef008000 r7:00000001 r6:00000000 r5:00000000 r4:c0b48460
[221960.055816] [<c0172858>] (generic_handle_irq) from [<c0172b7c>] (__handle_domain_irq+0x64/0xbc)
[221960.065826] [<c0172b18>] (__handle_domain_irq) from [<c01014d4>] (gic_handle_irq+0x50/0x90)
[221960.075805] r9:fa241100 r8:fa240100 r7:c0c01f10 r6:fa24010c r5:c0c027a0 r4:c0c205c8
[221960.076110] [<c0101484>] (gic_handle_irq) from [<c010ccd4>] (__irq_svc+0x54/0x90)
[221960.092437] Exception stack(0xc0c01f10 to 0xc0c01f58)
[221960.095825] 1f00: 00000000 ef7ab3b8 fe600000 00000000
[221960.106628] 1f20: c0c00000 c0c0249c c0c3efa7 00000001 c0c3efa7 c0c024ec efffc080 c0c01f6c
[221960.112457] 1f40: c0c01f4c c0c01f60 c0120fe0 c0108ca0 600c0113 ffffffff
[221960.122467] r9:c0c024ec r8:c0c3efa7 r7:c0c01f44 r6:ffffffff r5:600c0113 r4:c0108ca0
[221960.130798] [<c0108c78>] (arch_cpu_idle) from [<c01694bc>] (default_idle_call+0x28/0x34)
[221960.139465] [<c0169494>] (default_idle_call) from [<c01695e8>] (cpu_startup_entry+0x120/0x16c)
[221960.148681] [<c01694c8>] (cpu_startup_entry) from [<c07b79a4>] (rest_init+0x8c/0x90)
[221960.148681] r7:ffffffff r4:00000002
[221960.160858] [<c07b7918>] (rest_init) from [<c0b00cd0>] (start_kernel+0x338/0x344)
[221960.160858] r5:c0c41000 r4:00000000
[221960.170776] [<c0b00998>] (start_kernel) from [<8000807c>] (0x8000807c)
$
$
$ cat /proc/version
Linux version 4.6.0-rc1-panda (rfg@red.dwarf) (gcc version 5.3.0 (Buildroot 2016.02-git-00183-g1682aee) ) #1 SMP PREEMPT Sun Mar 27 11:33:30 AEDT 2016
$
$
$ uptime
20:15:19 up 3 days, 5:32, load average: 0.07, 0.08, 0.12
$
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-05-06 6:25 ` Ross Green
@ 2016-05-07 15:25 ` Paul E. McKenney
2016-05-10 2:36 ` Ross Green
2016-06-30 17:52 ` Paul E. McKenney
0 siblings, 2 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-05-07 15:25 UTC (permalink / raw)
To: Ross Green
Cc: Peter Zijlstra, Mathieu Desnoyers, Chatre, Reinette, Jacob Pan,
Josh Triplett, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Fri, May 06, 2016 at 04:25:16PM +1000, Ross Green wrote:
> On Sun, Apr 3, 2016 at 6:18 PM, Paul E. McKenney
> <paulmck@linux.vnet.ibm.com> wrote:
> > On Thu, Mar 31, 2016 at 08:42:55AM -0700, Paul E. McKenney wrote:
> >> On Wed, Mar 30, 2016 at 07:55:47AM -0700, Paul E. McKenney wrote:
> >> > On Tue, Mar 29, 2016 at 06:49:08AM -0700, Paul E. McKenney wrote:
> >> > > On Mon, Mar 28, 2016 at 05:28:14PM -0700, Paul E. McKenney wrote:
> >> > > > On Mon, Mar 28, 2016 at 05:25:18PM -0700, Paul E. McKenney wrote:
> >> > > > > On Mon, Mar 28, 2016 at 06:08:41AM -0700, Paul E. McKenney wrote:
> >> > > > > > On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
> >> > > > > > > On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
> >> > > > >
> >> > > > > [ . . . ]
> >> > > > >
> >> > > > > > > > OK, so I should instrument migration_call() if I get the repro rate up?
> >> > > > > > >
> >> > > > > > > Can do, maybe try the below first. (yes I know how long it all takes :/)
> >> > > > > >
> >> > > > > > OK, will run this today, then run calibration for last night's run this
> >> > > > > > evening.
> >> > >
> >> > > And of 18 two-hour runs, there were five failures, or about 28%.
> >> > > That said, I don't have even one significant digit on the failure rate,
> >> > > as 5 of 18 is within the 95% confidence limits for a failure probability
> >> > > as low as 12.5% and as high as 47%.
> >> >
> >> > And after last night's run, this is narrowed down to between 23% and 38%,
> >> > which is close enough. Average is 30%, 18 failures in 60 runs.
> >> >
> >> > Next step is to test Peter's patch some more. Might take a couple of
> >> > night's worth of runs to get statistical significance. After which
> >> > it will be time to rebase to 4.6-rc1.
> >>
> >> And the first night was not so good: 6 failures out of 24 runs. Adding
> >> this to the 1-of-10 earlier gets 7 failures of 34. Here are how things
> >> stack up given the range of base failure estimates:
> >>
> >> Low 95% bound of 23%: 84% confidence.
> >>
> >> Actual measurement of 30%: 92% confidence.
> >>
> >> High 95% bound of 38%: 98% confidence.
> >>
> >> So there is still some chance that Peter's patch is helping. I will
> >> run for one more evening, after which it will be time to move forward
> >> to 4.6-rc1.
> >
> > And no luck reducing bounds. However, moving to 4.6-rc1 did get some
> > of the trace_printk() to print. The ftrace_dump()s resulted in RCU
> > CPU stall warnings, and the dumps were truncated due to test timeouts
> > in my scripting. (I need to make my scripts more patient when they
> > see an ftrace dump in progress, I guess.)
> >
> > Here are the results:
> >
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.1.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.2.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.3.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.4.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.5.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.6.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.7.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.8.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.9.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.11.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.12.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.13.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.14.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.15.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.16.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.17.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.18.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.19.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.20.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.21.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.22.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.23.console.log.tgz
> > http://www2.rdrop.com/users/paulmck/submission/TREE03.24.console.log.tgz
> >
> > The config is here:
> >
> > http://www2.rdrop.com/users/paulmck/submission/config.tgz
> >
> > More runs to measure 4.6-rc1 base error rate...
> >
> > Thanx, Paul
> >
> G'day Paul,
>
>
> Thought i would update a few runs with the linux-4.6-rc kernels.
>
> I have attached log outputs through dmesg showing rcu_preempt stall warnings.
>
>
> Thought it might be interesting for someone else to look at.
>
> Currently running linux-4.6-rc6 in testing.
Thank you for sending these, I will look them over!
Still working to reproduce this quickly enough to do real debug... :-/
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-05-07 15:25 ` Paul E. McKenney
@ 2016-05-10 2:36 ` Ross Green
2016-06-30 17:52 ` Paul E. McKenney
1 sibling, 0 replies; 79+ messages in thread
From: Ross Green @ 2016-05-10 2:36 UTC (permalink / raw)
To: Paul McKenney
Cc: Peter Zijlstra, Mathieu Desnoyers, Chatre, Reinette, Jacob Pan,
Josh Triplett, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sun, May 8, 2016 at 1:25 AM, Paul E. McKenney
<paulmck@linux.vnet.ibm.com> wrote:
> On Fri, May 06, 2016 at 04:25:16PM +1000, Ross Green wrote:
>> On Sun, Apr 3, 2016 at 6:18 PM, Paul E. McKenney
>> <paulmck@linux.vnet.ibm.com> wrote:
>> > On Thu, Mar 31, 2016 at 08:42:55AM -0700, Paul E. McKenney wrote:
>> >> On Wed, Mar 30, 2016 at 07:55:47AM -0700, Paul E. McKenney wrote:
>> >> > On Tue, Mar 29, 2016 at 06:49:08AM -0700, Paul E. McKenney wrote:
>> >> > > On Mon, Mar 28, 2016 at 05:28:14PM -0700, Paul E. McKenney wrote:
>> >> > > > On Mon, Mar 28, 2016 at 05:25:18PM -0700, Paul E. McKenney wrote:
>> >> > > > > On Mon, Mar 28, 2016 at 06:08:41AM -0700, Paul E. McKenney wrote:
>> >> > > > > > On Mon, Mar 28, 2016 at 08:25:47AM +0200, Peter Zijlstra wrote:
>> >> > > > > > > On Sun, Mar 27, 2016 at 02:06:41PM -0700, Paul E. McKenney wrote:
>> >> > > > >
>> >> > > > > [ . . . ]
>> >> > > > >
>> >> > > > > > > > OK, so I should instrument migration_call() if I get the repro rate up?
>> >> > > > > > >
>> >> > > > > > > Can do, maybe try the below first. (yes I know how long it all takes :/)
>> >> > > > > >
>> >> > > > > > OK, will run this today, then run calibration for last night's run this
>> >> > > > > > evening.
>> >> > >
>> >> > > And of 18 two-hour runs, there were five failures, or about 28%.
>> >> > > That said, I don't have even one significant digit on the failure rate,
>> >> > > as 5 of 18 is within the 95% confidence limits for a failure probability
>> >> > > as low as 12.5% and as high as 47%.
>> >> >
>> >> > And after last night's run, this is narrowed down to between 23% and 38%,
>> >> > which is close enough. Average is 30%, 18 failures in 60 runs.
>> >> >
>> >> > Next step is to test Peter's patch some more. Might take a couple of
>> >> > night's worth of runs to get statistical significance. After which
>> >> > it will be time to rebase to 4.6-rc1.
>> >>
>> >> And the first night was not so good: 6 failures out of 24 runs. Adding
>> >> this to the 1-of-10 earlier gets 7 failures of 34. Here are how things
>> >> stack up given the range of base failure estimates:
>> >>
>> >> Low 95% bound of 23%: 84% confidence.
>> >>
>> >> Actual measurement of 30%: 92% confidence.
>> >>
>> >> High 95% bound of 38%: 98% confidence.
>> >>
>> >> So there is still some chance that Peter's patch is helping. I will
>> >> run for one more evening, after which it will be time to move forward
>> >> to 4.6-rc1.
>> >
>> > And no luck reducing bounds. However, moving to 4.6-rc1 did get some
>> > of the trace_printk() to print. The ftrace_dump()s resulted in RCU
>> > CPU stall warnings, and the dumps were truncated due to test timeouts
>> > in my scripting. (I need to make my scripts more patient when they
>> > see an ftrace dump in progress, I guess.)
>> >
>> > Here are the results:
>> >
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.1.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.2.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.3.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.4.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.5.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.6.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.7.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.8.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.9.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.11.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.12.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.13.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.14.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.15.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.16.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.17.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.18.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.19.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.20.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.21.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.22.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.23.console.log.tgz
>> > http://www2.rdrop.com/users/paulmck/submission/TREE03.24.console.log.tgz
>> >
>> > The config is here:
>> >
>> > http://www2.rdrop.com/users/paulmck/submission/config.tgz
>> >
>> > More runs to measure 4.6-rc1 base error rate...
>> >
>> > Thanx, Paul
>> >
>> G'day Paul,
>>
>>
>> Thought i would update a few runs with the linux-4.6-rc kernels.
>>
>> I have attached log outputs through dmesg showing rcu_preempt stall warnings.
>>
>>
>> Thought it might be interesting for someone else to look at.
>>
>> Currently running linux-4.6-rc6 in testing.
>
> Thank you for sending these, I will look them over!
>
> Still working to reproduce this quickly enough to do real debug... :-/
>
> Thanx, Paul
>
I have noticed in the latest 4.6rc series of kernels there have been a
couple that I have run for over a week and not pulled any stall
warnings. Might be just a coincidence!
I typically run each rc release to the next release. So its around a 7
day stint of exercising each kernel. The method remains the same, run
series of short bench marks to see everything is behaving and then let
lie idle. The system is never stressed after the initial benchmarking.
I did notice that with one of the recent kernels there was a missing
hr_timer event. Unfortunately, due to my own tardiness I missed
collecting that log!!!! It also had the stall warning.
Anyway currently running linux-4.6-rc7, so far no stall warnings.
Every time I have tired running huge CPU workloads have not been able
to induce the stall warnings.
What ever is going on here certainly seems obscure!
Regards,
Ross Green
^ permalink raw reply [flat|nested] 79+ messages in thread
* Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17
2016-05-07 15:25 ` Paul E. McKenney
2016-05-10 2:36 ` Ross Green
@ 2016-06-30 17:52 ` Paul E. McKenney
1 sibling, 0 replies; 79+ messages in thread
From: Paul E. McKenney @ 2016-06-30 17:52 UTC (permalink / raw)
To: Ross Green
Cc: Peter Zijlstra, Mathieu Desnoyers, Chatre, Reinette, Jacob Pan,
Josh Triplett, John Stultz, Thomas Gleixner, lkml, Ingo Molnar,
Lai Jiangshan, dipankar, Andrew Morton, rostedt, David Howells,
Eric Dumazet, Darren Hart, Frédéric Weisbecker,
Oleg Nesterov, pranith kumar
On Sat, May 07, 2016 at 08:25:01AM -0700, Paul E. McKenney wrote:
> On Fri, May 06, 2016 at 04:25:16PM +1000, Ross Green wrote:
> > On Sun, Apr 3, 2016 at 6:18 PM, Paul E. McKenney
> > <paulmck@linux.vnet.ibm.com> wrote:
[ . . . ]
> > Thought i would update a few runs with the linux-4.6-rc kernels.
> >
> > I have attached log outputs through dmesg showing rcu_preempt stall warnings.
> >
> >
> > Thought it might be interesting for someone else to look at.
> >
> > Currently running linux-4.6-rc6 in testing.
>
> Thank you for sending these, I will look them over!
>
> Still working to reproduce this quickly enough to do real debug... :-/
And Peter Zijlstra's patch looks to have hugely reduced the rate of
occurrence of this bug in my testing:
lkml.kernel.org/r/20160523091907.GD15728@worktop.ger.corp.intel.com
Almost all of the issues I am seeing now are transient, do not trigger
RCU CPU stall warnings, and would not have been visible to me before
I upgraded my testing scripts and in-kernel code. In all the tests I
have run with Peter's fix, I have seen only one run with RCU CPU stall
warnings, and all the stalls in that run were transient, unlike those
that I was seeing before his fix.
I will of course be tracking this stuff down, but the low reproduction
rates will make it slow going.
I am guessing that you no longer see this issue?
Thanx, Paul
^ permalink raw reply [flat|nested] 79+ messages in thread
end of thread, other threads:[~2016-06-30 17:52 UTC | newest]
Thread overview: 79+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-02-09 10:11 rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17 Ross Green
2016-02-17 5:45 ` Paul E. McKenney
2016-02-17 19:28 ` Paul E. McKenney
2016-02-17 19:45 ` Peter Zijlstra
2016-02-17 20:28 ` Paul E. McKenney
2016-02-17 23:19 ` Paul E. McKenney
2016-02-18 11:51 ` Ross Green
2016-02-18 23:14 ` Mathieu Desnoyers
2016-02-19 3:56 ` Ross Green
2016-02-19 4:13 ` John Stultz
2016-02-19 17:33 ` Paul E. McKenney
2016-02-20 4:34 ` Ross Green
2016-02-20 6:32 ` Paul E. McKenney
2016-02-21 5:04 ` Ross Green
2016-02-21 18:15 ` Ross Green
2016-02-23 20:34 ` Mathieu Desnoyers
2016-02-23 20:55 ` Paul E. McKenney
2016-02-23 21:28 ` Ross Green
2016-02-25 5:13 ` Ross Green
2016-02-26 0:56 ` Paul E. McKenney
2016-02-26 1:35 ` Paul E. McKenney
2016-03-04 5:30 ` Ross Green
2016-03-04 15:18 ` Paul E. McKenney
2016-03-18 21:00 ` Josh Triplett
2016-03-18 23:56 ` Paul E. McKenney
2016-03-21 16:22 ` Jacob Pan
2016-03-21 17:26 ` Paul E. McKenney
2016-03-22 16:35 ` Chatre, Reinette
2016-03-22 17:40 ` Paul E. McKenney
2016-03-22 21:04 ` Chatre, Reinette
2016-03-22 21:19 ` Paul E. McKenney
2016-03-23 17:15 ` Chatre, Reinette
2016-03-23 18:20 ` Paul E. McKenney
2016-03-23 18:25 ` Chatre, Reinette
2016-03-23 19:50 ` Paul E. McKenney
2016-03-25 21:24 ` Chatre, Reinette
2016-03-25 21:46 ` Paul E. McKenney
2016-03-26 12:29 ` Mathieu Desnoyers
2016-03-26 15:28 ` Paul E. McKenney
2016-03-26 18:49 ` Paul E. McKenney
2016-03-26 22:22 ` Mathieu Desnoyers
2016-03-27 1:34 ` Paul E. McKenney
2016-03-27 13:48 ` Mathieu Desnoyers
2016-03-27 15:40 ` Paul E. McKenney
2016-03-27 20:00 ` Paul E. McKenney
2016-03-27 20:45 ` Peter Zijlstra
2016-03-27 21:06 ` Paul E. McKenney
2016-03-28 6:25 ` Peter Zijlstra
2016-03-28 13:08 ` Paul E. McKenney
2016-03-29 0:25 ` Paul E. McKenney
2016-03-29 0:28 ` Paul E. McKenney
2016-03-29 13:49 ` Paul E. McKenney
2016-03-30 14:55 ` Paul E. McKenney
2016-03-31 15:42 ` Paul E. McKenney
2016-04-03 8:18 ` Paul E. McKenney
2016-05-06 6:25 ` Ross Green
2016-05-07 15:25 ` Paul E. McKenney
2016-05-10 2:36 ` Ross Green
2016-06-30 17:52 ` Paul E. McKenney
2016-03-28 1:44 ` Mathieu Desnoyers
2016-03-28 2:23 ` Mathieu Desnoyers
2016-03-28 6:13 ` Peter Zijlstra
2016-03-28 13:50 ` Paul E. McKenney
2016-03-28 14:15 ` Mathieu Desnoyers
2016-03-27 20:53 ` Peter Zijlstra
2016-03-27 21:07 ` Paul E. McKenney
2016-03-27 20:54 ` Peter Zijlstra
2016-03-27 21:09 ` Paul E. McKenney
2016-03-28 6:28 ` Peter Zijlstra
2016-03-28 13:29 ` Paul E. McKenney
2016-03-28 15:07 ` Mathieu Desnoyers
2016-03-28 15:56 ` Paul E. McKenney
2016-03-28 16:12 ` Mathieu Desnoyers
2016-03-28 16:29 ` Paul E. McKenney
2016-03-30 12:58 ` Boqun Feng
2016-03-30 13:30 ` Paul E. McKenney
2016-03-30 14:15 ` Boqun Feng
2016-02-19 4:22 ` Paul E. McKenney
2016-02-19 5:59 ` Ross Green
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