* Bug: Kernel oops during probing of mmc with WL1835 on GTA04A5
@ 2020-12-01 20:00 Andreas Kemnade
2020-12-03 21:43 ` [REGRESSION] mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4 Andreas Kemnade
0 siblings, 1 reply; 5+ messages in thread
From: Andreas Kemnade @ 2020-12-01 20:00 UTC (permalink / raw)
To: linux-mmc, Discussions about the Letux Kernel, Linux OMAP Mailing List
Hi,
during probing of second mmc host on the GTA04A5 which has a
WL1835 wifi chip attached, I get the following oops. From a first glance
this seems to be a timing sensitive. Maybe it rings some bells for someone...
so I hesitate a bit to start the bisect job.
Wild guessing: bus width is set while mmc module is not active, so registers
are not accessible.
Kernel configuration is omap2plus_defconfig
Regards,
Andreas
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 5.10.0-rc6 (andi@aktux) (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0, GNU0
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: Goldelico GTA04A5/Letux 2804
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] cma: Reserved 16 MiB at 0xbf000000
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000080000000-0x00000000afdfffff]
[ 0.000000] HighMem [mem 0x00000000afe00000-0x00000000bfffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000080000000-0x00000000afdfffff]
[ 0.000000] node 0: [mem 0x00000000b0000000-0x00000000bfffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000bfffffff]
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] OMAP3630/DM3730 ES1.2 (l2cache iva sgx neon isp 192mhz_clk)
[ 0.000000] percpu: Embedded 20 pages/cpu s49228 r8192 d24500 u81920
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 259908
[ 0.000000] Kernel command line: root=/dev/mmcblk0p6 rootfstype=ext4,ext3,btrfs rootwait console=ttyS20
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 1005132K/1046528K available (9216K kernel code, 1028K rwdata, 2176K rodata, 1024K )
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 4.0) with 96 interrupts
[ 0.000000] random: get_random_bytes called from start_kernel+0x30c/0x54c with crng_init=0
[ 0.000000] Clocking rate (Crystal/Core/MPU): 26.0/400/600 MHz
[ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5832703998s
[ 0.000030] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
[ 0.003356] TI gptimer clockevent: always-on 32768 Hz at /ocp@68000000/target-module@48318000
[ 0.005096] Console: colour dummy device 80x30
[ 0.005187] Calibrating delay loop... 600.47 BogoMIPS (lpj=3002368)
[ 0.053863] pid_max: default: 32768 minimum: 301
[ 0.054138] LSM: Security Framework initializing
[ 0.054260] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 0.054321] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 0.055694] CPU: Testing write buffer coherency: ok
[ 0.055816] CPU0: Spectre v2: using BPIALL workaround
[ 0.056213] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[ 0.057342] Setting up static identity map for 0x80100000 - 0x80100078
[ 0.057617] rcu: Hierarchical SRCU implementation.
[ 0.058349] smp: Bringing up secondary CPUs ...
[ 0.058380] smp: Brought up 1 node, 1 CPU
[ 0.058380] SMP: Total of 1 processors activated (600.47 BogoMIPS).
[ 0.058410] CPU: All CPU(s) started in SVC mode.
[ 0.059234] devtmpfs: initialized
[ 0.086822] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.087280] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750s
[ 0.087310] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[ 0.088806] pinctrl core: initialized pinctrl subsystem
[ 0.090850] NET: Registered protocol family 16
[ 0.094573] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.121429] omap_hwmod: mcbsp2_sidetone using broken dt data from mcbsp
[ 0.122253] omap_hwmod: mcbsp3_sidetone using broken dt data from mcbsp
[ 0.206390] audit: initializing netlink subsys (disabled)
[ 0.207855] thermal_sys: Registered thermal governor 'fair_share'
[ 0.207855] thermal_sys: Registered thermal governor 'step_wise'
[ 0.207885] thermal_sys: Registered thermal governor 'user_space'
[ 0.208648] cpuidle: using governor menu
[ 0.209106] Reprogramming SDRC clock to 400000000 Hz
[ 0.252105] audit: type=2000 audit(0.200:1): state=initialized audit_enabled=0 res=1
[ 0.252563] OMAP GPIO hardware version 2.5
[ 0.257019] gpio-111 (irda_en): hogged as output/high
[ 0.448425] No ATAGs?
[ 0.448455] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.478210] iommu: Default domain type: Translated
[ 0.480072] omap-iommu 480bd400.mmu: 480bd400.mmu registered
[ 0.480865] platform 480bc000.isp: Adding to iommu group 0
[ 0.483367] vgaarb: loaded
[ 0.484069] SCSI subsystem initialized
[ 0.490417] omap_i2c 48070000.i2c: bus 0 rev4.4 at 2600 kHz
[ 0.511016] omap_i2c 48072000.i2c: bus 1 rev4.4 at 400 kHz
[ 0.512695] omap_i2c 48060000.i2c: bus 2 rev4.4 at 100 kHz
[ 0.513214] pps_core: LinuxPPS API ver. 1 registered
[ 0.513244] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.513275] PTP clock support registered
[ 0.515014] clocksource: Switched to clocksource 32k_counter
[ 1.539031] VFS: Disk quotas dquot_6.6.0
[ 1.539184] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 1.554412] NET: Registered protocol family 2
[ 1.555694] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[ 1.555755] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
[ 1.555877] TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 1.556060] TCP: Hash tables configured (established 8192 bind 8192)
[ 1.556243] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 1.556304] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 1.556579] NET: Registered protocol family 1
[ 1.557617] RPC: Registered named UNIX socket transport module.
[ 1.557647] RPC: Registered udp transport module.
[ 1.557678] RPC: Registered tcp transport module.
[ 1.557678] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.557708] PCI: CLS 0 bytes, default 64
[ 1.566101] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[ 1.568389] Initialise system trusted keyrings
[ 1.568878] workingset: timestamp_bits=14 max_order=18 bucket_order=4
[ 1.570465] NFS: Registering the id_resolver key type
[ 1.570526] Key type id_resolver registered
[ 1.570556] Key type id_legacy registered
[ 1.570617] jffs2: version 2.2. (NAND) (SUMMARY) �ɩ 2001-2006 Red Hat, Inc.
[ 1.571105] Key type asymmetric registered
[ 1.571136] Asymmetric key parser 'x509' registered
[ 1.571228] bounce: pool size: 64 pages
[ 1.571258] io scheduler mq-deadline registered
[ 1.571289] io scheduler kyber registered
[ 1.597412] omap-dma-engine 48056000.dma-controller: OMAP DMA engine driver (LinkedList1/2/3 supported)
[ 1.609954] pinctrl-single 48002030.pinmux: 284 pins, size 568
[ 1.610656] pinctrl-single 48002a00.pinmux: 46 pins, size 92
[ 1.611511] pinctrl-single 480025a0.pinmux: 46 pins, size 92
[ 1.612030] pinctrl-single 48002274.pinmux_mcbsp1: initialized with no interrupts
[ 1.612060] pinctrl-single 48002274.pinmux_mcbsp1: 10 pins, size 4
[ 1.612396] pinctrl-single 480022d8.pinmux_tv_out: initialized with no interrupts
[ 1.612426] pinctrl-single 480022d8.pinmux_tv_out: 4 pins, size 4
[ 1.619689] Serial: 8250/16550 driver, 6 ports, IRQ sharing enabled
[ 1.624481] 4806a000.serial: ttyS0 at MMIO 0x4806a000 (irq = 88, base_baud = 3000000) is a 8250
[ 1.626922] 4806c000.serial: ttyS1 at MMIO 0x4806c000 (irq = 89, base_baud = 3000000) is a 8250
[ 1.627258] serial serial0: tty port ttyS1 registered
[ 1.629028] 49020000.serial: ttyS2 at MMIO 0x49020000 (irq = 90, base_baud = 3000000) is a 8250
[ 2.394439] printk: console [ttyS2] enabled
[ 2.401123] 49042000.serial: ttyS3 at MMIO 0x49042000 (irq = 96, base_baud = 3000000) is a 8250
[ 2.428985] brd: module loaded
[ 2.444610] loop: module loaded
[ 2.477172] random: fast init done
[ 2.486877] twl 0-0048: PIH (irq 23) chaining IRQs 145..153
[ 2.492614] twl 0-0048: power (irq 150) chaining IRQs 153..160
[ 2.513305] VAUX3: Bringing 2800000uV into 2500000-2500000uV
[ 2.558990] twl4030_gpio twl4030-gpio: gpio (irq 145) chaining IRQs 161..178
[ 2.587097] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 2.601928] libphy: Fixed MDIO Bus: probed
[ 2.609924] i2c /dev entries driver
[ 2.619293] sdhci: Secure Digital Host Controller Interface driver
[ 2.625793] sdhci: Copyright(c) Pierre Ossman
[ 2.631317] sdhci-pltfm: SDHCI platform and OF driver helper
[ 2.643859] ledtrig-cpu: registered to indicate activity on CPUs
[ 2.654022] Initializing XFRM netlink socket
[ 2.658843] NET: Registered protocol family 10
[ 2.665496] Segment Routing with IPv6
[ 2.669311] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 2.676452] NET: Registered protocol family 17
[ 2.680969] NET: Registered protocol family 15
[ 2.685791] Key type dns_resolver registered
[ 2.690795] oprofile: using arm/armv7
[ 2.694641] ThumbEE CPU extension supported.
[ 2.699157] Registering SWP/SWPB emulation handler
[ 2.706512] SmartReflex Class3 initialized
[ 2.712371] Loading compiled-in X.509 certificates
[ 2.757385] smartreflex 480cb000.smartreflex: omap_sr_probe: SmartReflex driver initialized
[ 2.766540] smartreflex 480c9000.smartreflex: omap_sr_probe: SmartReflex driver initialized
[ 2.778320] omap-gpmc 6e000000.gpmc: GPMC revision 5.0
[ 2.783508] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 2.792236] omap2-onenand 4000000.onenand: initializing on CS0 (0x04000000), va (ptrval), DMA mode
[ 2.801574] Muxed OneNAND 512MB 1.8V 16-bit (0x50)
[ 2.806579] OneNAND version = 0x0232
[ 2.811950] Scanning device for bad blocks
[ 2.872314] mmc0: host does not support reading read-only switch, assuming write-enable
[ 2.895294] mmc0: new high speed SDXC card at address aaaa
[ 2.905822] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
[ 3.098297] omap2-onenand 4000000.onenand: optimized timings for 83 MHz
[ 3.105010] 5 fixed-partitions partitions found on MTD device 4000000.onenand
[ 3.112335] Creating 5 MTD partitions on "4000000.onenand":
[ 3.118133] 0x000000000000-0x000000080000 : "X-Loader"
[ 3.127716] 0x000000080000-0x000000240000 : "U-Boot"
[ 3.135925] 0x000000240000-0x000000280000 : "U-Boot Env"
[ 3.145904] 0x000000280000-0x000000880000 : "Kernel"
[ 3.152587] mmcblk0: p1 p2 p3 p4 < p5 p6 p7 p8 >
[ 3.159393] 0x000000880000-0x000020000000 : "File System"
[ 3.179534] omap_hsmmc 480b4000.mmc: omap_device_late_idle: enabled but no driver. Idling
[ 3.265594] 8<--- cut here ---
[ 3.268707] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa0b402c
[ 3.276397] pgd = (ptrval)
[ 3.279144] [fa0b402c] *pgd=48011452(bad)
[ 3.283203] Internal error: : 1028 [#1] SMP ARM
[ 3.287750] Modules linked in:
[ 3.290832] CPU: 0 PID: 7 Comm: kworker/u2:0 Not tainted 5.10.0-rc6 #3
[ 3.297393] Hardware name: Generic OMAP36xx (Flattened Device Tree)
[ 3.303710] Workqueue: events_unbound async_run_entry_fn
[ 3.309082] PC is at omap_hsmmc_set_bus_width+0x8/0x78
[ 3.314239] LR is at omap_hsmmc_set_ios+0x11c/0x258
[ 3.319152] pc : [<c079787c>] lr : [<c07996bc>] psr: 20000013
[ 3.325469] sp : c10f9e00 ip : c175c800 fp : 00000066
[ 3.330718] r10: c175cb80 r9 : fa0b4000 r8 : 00000000
[ 3.335968] r7 : c123e010 r6 : c175ca58 r5 : c175cb80 r4 : c175c800
[ 3.342529] r3 : 00000001 r2 : 58ad940c r1 : fa0b4000 r0 : c175cb80
[ 3.349090] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 3.356262] Control: 10c5387d Table: 80004019 DAC: 00000051
[ 3.362030] Process kworker/u2:0 (pid: 7, stack limit = 0x(ptrval))
[ 3.368347] Stack: (0xc10f9e00 to 0xc10fa000)
[ 3.372741] 9e00: c175c800 00000007 c123e000 c123e010 00000000 c077b2b0 c175c800 00000000
[ 3.380950] 9e20: c123e000 c077c14c c175c800 c077d284 c175c800 c175c800 c123e000 c0799190
[ 3.389190] 9e40: 00000000 c1755040 c175cb80 00000000 c123fd68 58ad940c 00000001 c123e010
[ 3.397430] 9e60: 00000000 c0edaec8 00000000 00000000 c0edaec8 00000006 ffffe000 c0666728
[ 3.405639] 9e80: c123e010 c0f38c28 c0f38c30 00000000 00000000 c066457c c123e010 c0edaec8
[ 3.413879] 9ea0: c06649bc c0e051c8 00000000 00000000 c0efa4a0 c06648b8 00000000 c10f9ef4
[ 3.422119] 9ec0: c06649bc c066298c 00000000 c1039e6c c1653738 58ad940c c123e010 c123e010
[ 3.430328] 9ee0: c0e051c8 c123e054 c100f000 c0663e60 c0e03d00 c123e010 00010101 58ad940c
[ 3.438568] 9f00: c12642d0 c0f02018 c12642c0 c015da48 c12642d0 c10bbf00 c1009400 c100f000
[ 3.446807] 9f20: 00000000 c0153b74 c10bc800 c1009400 00000088 c10bbf00 c10bbf14 c1009400
[ 3.455017] 9f40: 00000088 c1009418 c0e03d00 c1009400 ffffe000 c0153eec ffffe000 00000000
[ 3.463256] 9f60: c10bbf00 00000000 c10b1ac0 c10b1c40 c10f8000 c0153ec0 c10bbf00 c10ebe94
[ 3.471466] 9f80: c10b1ae4 c015a9ac 00000001 c10b1c40 c015a87c 00000000 00000000 00000000
[ 3.479705] 9fa0: 00000000 00000000 00000000 c0100168 00000000 00000000 00000000 00000000
[ 3.487945] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 3.496154] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 3.504394] [<c079787c>] (omap_hsmmc_set_bus_width) from [<c07996bc>] (omap_hsmmc_set_ios+0x11c/0x258)
[ 3.513763] [<c07996bc>] (omap_hsmmc_set_ios) from [<c077b2b0>] (mmc_power_up.part.8+0x3c/0xd0)
[ 3.522521] [<c077b2b0>] (mmc_power_up.part.8) from [<c077c14c>] (mmc_start_host+0x88/0x9c)
[ 3.530944] [<c077c14c>] (mmc_start_host) from [<c077d284>] (mmc_add_host+0x58/0x84)
[ 3.538726] [<c077d284>] (mmc_add_host) from [<c0799190>] (omap_hsmmc_probe+0x5fc/0x8c0)
[ 3.546874] [<c0799190>] (omap_hsmmc_probe) from [<c0666728>] (platform_drv_probe+0x48/0x98)
[ 3.555358] [<c0666728>] (platform_drv_probe) from [<c066457c>] (really_probe+0x1dc/0x3b4)
[ 3.563690] [<c066457c>] (really_probe) from [<c06648b8>] (driver_probe_device+0x58/0xb4)
[ 3.571929] [<c06648b8>] (driver_probe_device) from [<c066298c>] (bus_for_each_drv+0x7c/0xc4)
[ 3.580505] [<c066298c>] (bus_for_each_drv) from [<c0663e60>] (__device_attach_async_helper+0xa4/0xd8)
[ 3.589874] [<c0663e60>] (__device_attach_async_helper) from [<c015da48>] (async_run_entry_fn+0x3c/0x1)
[ 3.599487] [<c015da48>] (async_run_entry_fn) from [<c0153b74>] (process_one_work+0x228/0x574)
[ 3.608154] [<c0153b74>] (process_one_work) from [<c0153eec>] (worker_thread+0x2c/0x5d0)
[ 3.616302] [<c0153eec>] (worker_thread) from [<c015a9ac>] (kthread+0x130/0x144)
[ 3.623748] [<c015a9ac>] (kthread) from [<c0100168>] (ret_from_fork+0x14/0x2c)
[ 3.631011] Exception stack(0xc10f9fb0 to 0xc10f9ff8)
[ 3.636108] 9fa0: 00000000 00000000 00000000 00000000
[ 3.644317] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 3.652557] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 3.659210] Code: e8bd4070 ea082166 e590c004 e5901024 (e591302c)
[ 3.665344] ---[ end trace 085f2ded837c839d ]---
[ 3.670013] In-band Error seen by MPU at address 0
[ 3.674926] ------------[ cut here ]------------
[ 3.679565] WARNING: CPU: 0 PID: 7 at drivers/bus/omap_l3_smx.c:152 omap3_l3_app_irq+0xb4/0x120
[ 3.688323] Modules linked in:
[ 3.691406] CPU: 0 PID: 7 Comm: kworker/u2:0 Tainted: G D 5.10.0-rc6 #3
[ 3.699371] Hardware name: Generic OMAP36xx (Flattened Device Tree)
[ 3.705657] Workqueue: events_unbound async_run_entry_fn
[ 3.711029] [<c0110c34>] (unwind_backtrace) from [<c010b538>] (show_stack+0x10/0x14)
[ 3.718841] [<c010b538>] (show_stack) from [<c09924a8>] (dump_stack+0xc4/0xe4)
[ 3.726104] [<c09924a8>] (dump_stack) from [<c0137968>] (__warn+0xd8/0x100)
[ 3.733123] [<c0137968>] (__warn) from [<c098e0f8>] (warn_slowpath_fmt+0x58/0xb8)
[ 3.740661] [<c098e0f8>] (warn_slowpath_fmt) from [<c058d284>] (omap3_l3_app_irq+0xb4/0x120)
[ 3.749145] [<c058d284>] (omap3_l3_app_irq) from [<c019b1c4>] (__handle_irq_event_percpu+0x48/0x208)
[ 3.758331] [<c019b1c4>] (__handle_irq_event_percpu) from [<c019b3ac>] (handle_irq_event_percpu+0x28/0)
[ 3.768035] [<c019b3ac>] (handle_irq_event_percpu) from [<c019b44c>] (handle_irq_event+0x48/0x6c)
[ 3.776977] [<c019b44c>] (handle_irq_event) from [<c019fa90>] (handle_level_irq+0xc4/0x15c)
[ 3.785369] [<c019fa90>] (handle_level_irq) from [<c019a3e0>] (generic_handle_irq+0x30/0x44)
[ 3.793853] [<c019a3e0>] (generic_handle_irq) from [<c019a9f4>] (__handle_domain_irq+0x64/0xe0)
[ 3.802612] [<c019a9f4>] (__handle_domain_irq) from [<c0100b6c>] (__irq_svc+0x6c/0x90)
[ 3.810577] Exception stack(0xc10f9cd0 to 0xc10f9d18)
[ 3.815673] 9cc0: 00000000 00000000 c10bda80 00000002
[ 3.823883] 9ce0: 00000000 c10ecb40 00000000 00000000 c10f8000 00000000 bf000000 ffffe000
[ 3.832122] 9d00: 00000000 c10f9d20 00000000 c01e0cd8 40000113 ffffffff
[ 3.838775] [<c0100b6c>] (__irq_svc) from [<c01e0cd8>] (acct_collect+0x1b0/0x1cc)
[ 3.846313] [<c01e0cd8>] (acct_collect) from [<c013ca10>] (do_exit+0x1d0/0xb44)
[ 3.853668] [<c013ca10>] (do_exit) from [<c010b860>] (die+0x324/0x364)
[ 3.860229] [<c010b860>] (die) from [<c01154e0>] (do_DataAbort+0x9c/0xb8)
[ 3.867065] [<c01154e0>] (do_DataAbort) from [<c0100ac0>] (__dabt_svc+0x60/0xa0)
[ 3.874511] Exception stack(0xc10f9db0 to 0xc10f9df8)
[ 3.879608] 9da0: c175cb80 fa0b4000 58ad940c 00000001
[ 3.887817] 9dc0: c175c800 c175cb80 c175ca58 c123e010 00000000 fa0b4000 c175cb80 00000066
[ 3.896057] 9de0: c175c800 c10f9e00 c07996bc c079787c 20000013 ffffffff
[ 3.902709] [<c0100ac0>] (__dabt_svc) from [<c079787c>] (omap_hsmmc_set_bus_width+0x8/0x78)
[ 3.911102] [<c079787c>] (omap_hsmmc_set_bus_width) from [<c07996bc>] (omap_hsmmc_set_ios+0x11c/0x258)
[ 3.920471] [<c07996bc>] (omap_hsmmc_set_ios) from [<c077b2b0>] (mmc_power_up.part.8+0x3c/0xd0)
[ 3.929229] [<c077b2b0>] (mmc_power_up.part.8) from [<c077c14c>] (mmc_start_host+0x88/0x9c)
[ 3.937622] [<c077c14c>] (mmc_start_host) from [<c077d284>] (mmc_add_host+0x58/0x84)
[ 3.945434] [<c077d284>] (mmc_add_host) from [<c0799190>] (omap_hsmmc_probe+0x5fc/0x8c0)
[ 3.953552] [<c0799190>] (omap_hsmmc_probe) from [<c0666728>] (platform_drv_probe+0x48/0x98)
[ 3.962066] [<c0666728>] (platform_drv_probe) from [<c066457c>] (really_probe+0x1dc/0x3b4)
[ 3.970367] [<c066457c>] (really_probe) from [<c06648b8>] (driver_probe_device+0x58/0xb4)
[ 3.978607] [<c06648b8>] (driver_probe_device) from [<c066298c>] (bus_for_each_drv+0x7c/0xc4)
[ 3.987182] [<c066298c>] (bus_for_each_drv) from [<c0663e60>] (__device_attach_async_helper+0xa4/0xd8)
[ 3.996551] [<c0663e60>] (__device_attach_async_helper) from [<c015da48>] (async_run_entry_fn+0x3c/0x1)
[ 4.006164] [<c015da48>] (async_run_entry_fn) from [<c0153b74>] (process_one_work+0x228/0x574)
[ 4.014831] [<c0153b74>] (process_one_work) from [<c0153eec>] (worker_thread+0x2c/0x5d0)
[ 4.022979] [<c0153eec>] (worker_thread) from [<c015a9ac>] (kthread+0x130/0x144)
[ 4.030426] [<c015a9ac>] (kthread) from [<c0100168>] (ret_from_fork+0x14/0x2c)
[ 4.037689] Exception stack(0xc10f9fb0 to 0xc10f9ff8)
[ 4.042755] 9fa0: 00000000 00000000 00000000 00000000
[ 4.050994] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4.059204] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 4.065856] ---[ end trace 085f2ded837c839e ]---
^ permalink raw reply [flat|nested] 5+ messages in thread
* [REGRESSION] mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-12-01 20:00 Bug: Kernel oops during probing of mmc with WL1835 on GTA04A5 Andreas Kemnade
@ 2020-12-03 21:43 ` Andreas Kemnade
2020-12-03 22:03 ` Doug Anderson
0 siblings, 1 reply; 5+ messages in thread
From: Andreas Kemnade @ 2020-12-03 21:43 UTC (permalink / raw)
To: linux-mmc, Discussions about the Letux Kernel,
Linux OMAP Mailing List, dianders, wsa+renesas, treding,
ulf.hansson, Tony Lindgren
On Tue, 1 Dec 2020 21:00:39 +0100
Andreas Kemnade <andreas@kemnade.info> wrote:
> Hi,
>
> during probing of second mmc host on the GTA04A5 which has a
> WL1835 wifi chip attached, I get the following oops. From a first glance
> this seems to be a timing sensitive. Maybe it rings some bells for someone...
> so I hesitate a bit to start the bisect job.
Did the bisect job.
21b2cec61c04 (mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4)
is the evil commit. Reverting it on top of v5.10-rc6 solves the problem.
> Wild guessing: bus width is set while mmc module is not active, so registers
> are not accessible.
> Kernel configuration is omap2plus_defconfig
>
> Regards,
> Andreas
>
>
> [ 0.000000] Booting Linux on physical CPU 0x0
> [ 0.000000] Linux version 5.10.0-rc6 (andi@aktux) (arm-linux-gnueabihf-gcc (Debian 8.3.0-2) 8.3.0, GNU0
> [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
> [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> [ 0.000000] OF: fdt: Machine model: Goldelico GTA04A5/Letux 2804
> [ 0.000000] Memory policy: Data cache writeback
> [ 0.000000] cma: Reserved 16 MiB at 0xbf000000
> [ 0.000000] Zone ranges:
> [ 0.000000] Normal [mem 0x0000000080000000-0x00000000afdfffff]
> [ 0.000000] HighMem [mem 0x00000000afe00000-0x00000000bfffffff]
> [ 0.000000] Movable zone start for each node
> [ 0.000000] Early memory node ranges
> [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000afdfffff]
> [ 0.000000] node 0: [mem 0x00000000b0000000-0x00000000bfffffff]
> [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000000bfffffff]
> [ 0.000000] CPU: All CPU(s) started in SVC mode.
> [ 0.000000] OMAP3630/DM3730 ES1.2 (l2cache iva sgx neon isp 192mhz_clk)
> [ 0.000000] percpu: Embedded 20 pages/cpu s49228 r8192 d24500 u81920
> [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 259908
> [ 0.000000] Kernel command line: root=/dev/mmcblk0p6 rootfstype=ext4,ext3,btrfs rootwait console=ttyS20
> [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
> [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
> [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
> [ 0.000000] Memory: 1005132K/1046528K available (9216K kernel code, 1028K rwdata, 2176K rodata, 1024K )
> [ 0.000000] rcu: Hierarchical RCU implementation.
> [ 0.000000] rcu: RCU event tracing is enabled.
> [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
> [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
> [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
> [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
> [ 0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 4.0) with 96 interrupts
> [ 0.000000] random: get_random_bytes called from start_kernel+0x30c/0x54c with crng_init=0
> [ 0.000000] Clocking rate (Crystal/Core/MPU): 26.0/400/600 MHz
> [ 0.000000] OMAP clocksource: 32k_counter at 32768 Hz
> [ 0.000000] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5832703998s
> [ 0.000030] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65535999984741ns
> [ 0.003356] TI gptimer clockevent: always-on 32768 Hz at /ocp@68000000/target-module@48318000
> [ 0.005096] Console: colour dummy device 80x30
> [ 0.005187] Calibrating delay loop... 600.47 BogoMIPS (lpj=3002368)
> [ 0.053863] pid_max: default: 32768 minimum: 301
> [ 0.054138] LSM: Security Framework initializing
> [ 0.054260] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
> [ 0.054321] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
> [ 0.055694] CPU: Testing write buffer coherency: ok
> [ 0.055816] CPU0: Spectre v2: using BPIALL workaround
> [ 0.056213] CPU0: thread -1, cpu 0, socket -1, mpidr 0
> [ 0.057342] Setting up static identity map for 0x80100000 - 0x80100078
> [ 0.057617] rcu: Hierarchical SRCU implementation.
> [ 0.058349] smp: Bringing up secondary CPUs ...
> [ 0.058380] smp: Brought up 1 node, 1 CPU
> [ 0.058380] SMP: Total of 1 processors activated (600.47 BogoMIPS).
> [ 0.058410] CPU: All CPU(s) started in SVC mode.
> [ 0.059234] devtmpfs: initialized
> [ 0.086822] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
> [ 0.087280] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750s
> [ 0.087310] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
> [ 0.088806] pinctrl core: initialized pinctrl subsystem
> [ 0.090850] NET: Registered protocol family 16
> [ 0.094573] DMA: preallocated 256 KiB pool for atomic coherent allocations
> [ 0.121429] omap_hwmod: mcbsp2_sidetone using broken dt data from mcbsp
> [ 0.122253] omap_hwmod: mcbsp3_sidetone using broken dt data from mcbsp
> [ 0.206390] audit: initializing netlink subsys (disabled)
> [ 0.207855] thermal_sys: Registered thermal governor 'fair_share'
> [ 0.207855] thermal_sys: Registered thermal governor 'step_wise'
> [ 0.207885] thermal_sys: Registered thermal governor 'user_space'
> [ 0.208648] cpuidle: using governor menu
> [ 0.209106] Reprogramming SDRC clock to 400000000 Hz
> [ 0.252105] audit: type=2000 audit(0.200:1): state=initialized audit_enabled=0 res=1
> [ 0.252563] OMAP GPIO hardware version 2.5
> [ 0.257019] gpio-111 (irda_en): hogged as output/high
> [ 0.448425] No ATAGs?
> [ 0.448455] hw-breakpoint: debug architecture 0x4 unsupported.
> [ 0.478210] iommu: Default domain type: Translated
> [ 0.480072] omap-iommu 480bd400.mmu: 480bd400.mmu registered
> [ 0.480865] platform 480bc000.isp: Adding to iommu group 0
> [ 0.483367] vgaarb: loaded
> [ 0.484069] SCSI subsystem initialized
> [ 0.490417] omap_i2c 48070000.i2c: bus 0 rev4.4 at 2600 kHz
> [ 0.511016] omap_i2c 48072000.i2c: bus 1 rev4.4 at 400 kHz
> [ 0.512695] omap_i2c 48060000.i2c: bus 2 rev4.4 at 100 kHz
> [ 0.513214] pps_core: LinuxPPS API ver. 1 registered
> [ 0.513244] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
> [ 0.513275] PTP clock support registered
> [ 0.515014] clocksource: Switched to clocksource 32k_counter
> [ 1.539031] VFS: Disk quotas dquot_6.6.0
> [ 1.539184] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> [ 1.554412] NET: Registered protocol family 2
> [ 1.555694] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
> [ 1.555755] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
> [ 1.555877] TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
> [ 1.556060] TCP: Hash tables configured (established 8192 bind 8192)
> [ 1.556243] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
> [ 1.556304] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
> [ 1.556579] NET: Registered protocol family 1
> [ 1.557617] RPC: Registered named UNIX socket transport module.
> [ 1.557647] RPC: Registered udp transport module.
> [ 1.557678] RPC: Registered tcp transport module.
> [ 1.557678] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [ 1.557708] PCI: CLS 0 bytes, default 64
> [ 1.566101] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
> [ 1.568389] Initialise system trusted keyrings
> [ 1.568878] workingset: timestamp_bits=14 max_order=18 bucket_order=4
> [ 1.570465] NFS: Registering the id_resolver key type
> [ 1.570526] Key type id_resolver registered
> [ 1.570556] Key type id_legacy registered
> [ 1.570617] jffs2: version 2.2. (NAND) (SUMMARY) �ɩ 2001-2006 Red Hat, Inc.
> [ 1.571105] Key type asymmetric registered
> [ 1.571136] Asymmetric key parser 'x509' registered
> [ 1.571228] bounce: pool size: 64 pages
> [ 1.571258] io scheduler mq-deadline registered
> [ 1.571289] io scheduler kyber registered
> [ 1.597412] omap-dma-engine 48056000.dma-controller: OMAP DMA engine driver (LinkedList1/2/3 supported)
> [ 1.609954] pinctrl-single 48002030.pinmux: 284 pins, size 568
> [ 1.610656] pinctrl-single 48002a00.pinmux: 46 pins, size 92
> [ 1.611511] pinctrl-single 480025a0.pinmux: 46 pins, size 92
> [ 1.612030] pinctrl-single 48002274.pinmux_mcbsp1: initialized with no interrupts
> [ 1.612060] pinctrl-single 48002274.pinmux_mcbsp1: 10 pins, size 4
> [ 1.612396] pinctrl-single 480022d8.pinmux_tv_out: initialized with no interrupts
> [ 1.612426] pinctrl-single 480022d8.pinmux_tv_out: 4 pins, size 4
> [ 1.619689] Serial: 8250/16550 driver, 6 ports, IRQ sharing enabled
> [ 1.624481] 4806a000.serial: ttyS0 at MMIO 0x4806a000 (irq = 88, base_baud = 3000000) is a 8250
> [ 1.626922] 4806c000.serial: ttyS1 at MMIO 0x4806c000 (irq = 89, base_baud = 3000000) is a 8250
> [ 1.627258] serial serial0: tty port ttyS1 registered
> [ 1.629028] 49020000.serial: ttyS2 at MMIO 0x49020000 (irq = 90, base_baud = 3000000) is a 8250
> [ 2.394439] printk: console [ttyS2] enabled
> [ 2.401123] 49042000.serial: ttyS3 at MMIO 0x49042000 (irq = 96, base_baud = 3000000) is a 8250
> [ 2.428985] brd: module loaded
> [ 2.444610] loop: module loaded
> [ 2.477172] random: fast init done
> [ 2.486877] twl 0-0048: PIH (irq 23) chaining IRQs 145..153
> [ 2.492614] twl 0-0048: power (irq 150) chaining IRQs 153..160
> [ 2.513305] VAUX3: Bringing 2800000uV into 2500000-2500000uV
> [ 2.558990] twl4030_gpio twl4030-gpio: gpio (irq 145) chaining IRQs 161..178
> [ 2.587097] mtdoops: mtd device (mtddev=name/number) must be supplied
> [ 2.601928] libphy: Fixed MDIO Bus: probed
> [ 2.609924] i2c /dev entries driver
> [ 2.619293] sdhci: Secure Digital Host Controller Interface driver
> [ 2.625793] sdhci: Copyright(c) Pierre Ossman
> [ 2.631317] sdhci-pltfm: SDHCI platform and OF driver helper
> [ 2.643859] ledtrig-cpu: registered to indicate activity on CPUs
> [ 2.654022] Initializing XFRM netlink socket
> [ 2.658843] NET: Registered protocol family 10
> [ 2.665496] Segment Routing with IPv6
> [ 2.669311] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
> [ 2.676452] NET: Registered protocol family 17
> [ 2.680969] NET: Registered protocol family 15
> [ 2.685791] Key type dns_resolver registered
> [ 2.690795] oprofile: using arm/armv7
> [ 2.694641] ThumbEE CPU extension supported.
> [ 2.699157] Registering SWP/SWPB emulation handler
> [ 2.706512] SmartReflex Class3 initialized
> [ 2.712371] Loading compiled-in X.509 certificates
> [ 2.757385] smartreflex 480cb000.smartreflex: omap_sr_probe: SmartReflex driver initialized
> [ 2.766540] smartreflex 480c9000.smartreflex: omap_sr_probe: SmartReflex driver initialized
> [ 2.778320] omap-gpmc 6e000000.gpmc: GPMC revision 5.0
> [ 2.783508] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
> [ 2.792236] omap2-onenand 4000000.onenand: initializing on CS0 (0x04000000), va (ptrval), DMA mode
> [ 2.801574] Muxed OneNAND 512MB 1.8V 16-bit (0x50)
> [ 2.806579] OneNAND version = 0x0232
> [ 2.811950] Scanning device for bad blocks
> [ 2.872314] mmc0: host does not support reading read-only switch, assuming write-enable
> [ 2.895294] mmc0: new high speed SDXC card at address aaaa
> [ 2.905822] mmcblk0: mmc0:aaaa SC64G 59.5 GiB
> [ 3.098297] omap2-onenand 4000000.onenand: optimized timings for 83 MHz
> [ 3.105010] 5 fixed-partitions partitions found on MTD device 4000000.onenand
> [ 3.112335] Creating 5 MTD partitions on "4000000.onenand":
> [ 3.118133] 0x000000000000-0x000000080000 : "X-Loader"
> [ 3.127716] 0x000000080000-0x000000240000 : "U-Boot"
> [ 3.135925] 0x000000240000-0x000000280000 : "U-Boot Env"
> [ 3.145904] 0x000000280000-0x000000880000 : "Kernel"
> [ 3.152587] mmcblk0: p1 p2 p3 p4 < p5 p6 p7 p8 >
> [ 3.159393] 0x000000880000-0x000020000000 : "File System"
> [ 3.179534] omap_hsmmc 480b4000.mmc: omap_device_late_idle: enabled but no driver. Idling
> [ 3.265594] 8<--- cut here ---
> [ 3.268707] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa0b402c
> [ 3.276397] pgd = (ptrval)
> [ 3.279144] [fa0b402c] *pgd=48011452(bad)
> [ 3.283203] Internal error: : 1028 [#1] SMP ARM
> [ 3.287750] Modules linked in:
> [ 3.290832] CPU: 0 PID: 7 Comm: kworker/u2:0 Not tainted 5.10.0-rc6 #3
> [ 3.297393] Hardware name: Generic OMAP36xx (Flattened Device Tree)
> [ 3.303710] Workqueue: events_unbound async_run_entry_fn
> [ 3.309082] PC is at omap_hsmmc_set_bus_width+0x8/0x78
> [ 3.314239] LR is at omap_hsmmc_set_ios+0x11c/0x258
> [ 3.319152] pc : [<c079787c>] lr : [<c07996bc>] psr: 20000013
> [ 3.325469] sp : c10f9e00 ip : c175c800 fp : 00000066
> [ 3.330718] r10: c175cb80 r9 : fa0b4000 r8 : 00000000
> [ 3.335968] r7 : c123e010 r6 : c175ca58 r5 : c175cb80 r4 : c175c800
> [ 3.342529] r3 : 00000001 r2 : 58ad940c r1 : fa0b4000 r0 : c175cb80
> [ 3.349090] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
> [ 3.356262] Control: 10c5387d Table: 80004019 DAC: 00000051
> [ 3.362030] Process kworker/u2:0 (pid: 7, stack limit = 0x(ptrval))
> [ 3.368347] Stack: (0xc10f9e00 to 0xc10fa000)
> [ 3.372741] 9e00: c175c800 00000007 c123e000 c123e010 00000000 c077b2b0 c175c800 00000000
> [ 3.380950] 9e20: c123e000 c077c14c c175c800 c077d284 c175c800 c175c800 c123e000 c0799190
> [ 3.389190] 9e40: 00000000 c1755040 c175cb80 00000000 c123fd68 58ad940c 00000001 c123e010
> [ 3.397430] 9e60: 00000000 c0edaec8 00000000 00000000 c0edaec8 00000006 ffffe000 c0666728
> [ 3.405639] 9e80: c123e010 c0f38c28 c0f38c30 00000000 00000000 c066457c c123e010 c0edaec8
> [ 3.413879] 9ea0: c06649bc c0e051c8 00000000 00000000 c0efa4a0 c06648b8 00000000 c10f9ef4
> [ 3.422119] 9ec0: c06649bc c066298c 00000000 c1039e6c c1653738 58ad940c c123e010 c123e010
> [ 3.430328] 9ee0: c0e051c8 c123e054 c100f000 c0663e60 c0e03d00 c123e010 00010101 58ad940c
> [ 3.438568] 9f00: c12642d0 c0f02018 c12642c0 c015da48 c12642d0 c10bbf00 c1009400 c100f000
> [ 3.446807] 9f20: 00000000 c0153b74 c10bc800 c1009400 00000088 c10bbf00 c10bbf14 c1009400
> [ 3.455017] 9f40: 00000088 c1009418 c0e03d00 c1009400 ffffe000 c0153eec ffffe000 00000000
> [ 3.463256] 9f60: c10bbf00 00000000 c10b1ac0 c10b1c40 c10f8000 c0153ec0 c10bbf00 c10ebe94
> [ 3.471466] 9f80: c10b1ae4 c015a9ac 00000001 c10b1c40 c015a87c 00000000 00000000 00000000
> [ 3.479705] 9fa0: 00000000 00000000 00000000 c0100168 00000000 00000000 00000000 00000000
> [ 3.487945] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> [ 3.496154] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
> [ 3.504394] [<c079787c>] (omap_hsmmc_set_bus_width) from [<c07996bc>] (omap_hsmmc_set_ios+0x11c/0x258)
> [ 3.513763] [<c07996bc>] (omap_hsmmc_set_ios) from [<c077b2b0>] (mmc_power_up.part.8+0x3c/0xd0)
> [ 3.522521] [<c077b2b0>] (mmc_power_up.part.8) from [<c077c14c>] (mmc_start_host+0x88/0x9c)
> [ 3.530944] [<c077c14c>] (mmc_start_host) from [<c077d284>] (mmc_add_host+0x58/0x84)
> [ 3.538726] [<c077d284>] (mmc_add_host) from [<c0799190>] (omap_hsmmc_probe+0x5fc/0x8c0)
> [ 3.546874] [<c0799190>] (omap_hsmmc_probe) from [<c0666728>] (platform_drv_probe+0x48/0x98)
> [ 3.555358] [<c0666728>] (platform_drv_probe) from [<c066457c>] (really_probe+0x1dc/0x3b4)
> [ 3.563690] [<c066457c>] (really_probe) from [<c06648b8>] (driver_probe_device+0x58/0xb4)
> [ 3.571929] [<c06648b8>] (driver_probe_device) from [<c066298c>] (bus_for_each_drv+0x7c/0xc4)
> [ 3.580505] [<c066298c>] (bus_for_each_drv) from [<c0663e60>] (__device_attach_async_helper+0xa4/0xd8)
> [ 3.589874] [<c0663e60>] (__device_attach_async_helper) from [<c015da48>] (async_run_entry_fn+0x3c/0x1)
> [ 3.599487] [<c015da48>] (async_run_entry_fn) from [<c0153b74>] (process_one_work+0x228/0x574)
> [ 3.608154] [<c0153b74>] (process_one_work) from [<c0153eec>] (worker_thread+0x2c/0x5d0)
> [ 3.616302] [<c0153eec>] (worker_thread) from [<c015a9ac>] (kthread+0x130/0x144)
> [ 3.623748] [<c015a9ac>] (kthread) from [<c0100168>] (ret_from_fork+0x14/0x2c)
> [ 3.631011] Exception stack(0xc10f9fb0 to 0xc10f9ff8)
> [ 3.636108] 9fa0: 00000000 00000000 00000000 00000000
> [ 3.644317] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> [ 3.652557] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
> [ 3.659210] Code: e8bd4070 ea082166 e590c004 e5901024 (e591302c)
> [ 3.665344] ---[ end trace 085f2ded837c839d ]---
> [ 3.670013] In-band Error seen by MPU at address 0
> [ 3.674926] ------------[ cut here ]------------
> [ 3.679565] WARNING: CPU: 0 PID: 7 at drivers/bus/omap_l3_smx.c:152 omap3_l3_app_irq+0xb4/0x120
> [ 3.688323] Modules linked in:
> [ 3.691406] CPU: 0 PID: 7 Comm: kworker/u2:0 Tainted: G D 5.10.0-rc6 #3
> [ 3.699371] Hardware name: Generic OMAP36xx (Flattened Device Tree)
> [ 3.705657] Workqueue: events_unbound async_run_entry_fn
> [ 3.711029] [<c0110c34>] (unwind_backtrace) from [<c010b538>] (show_stack+0x10/0x14)
> [ 3.718841] [<c010b538>] (show_stack) from [<c09924a8>] (dump_stack+0xc4/0xe4)
> [ 3.726104] [<c09924a8>] (dump_stack) from [<c0137968>] (__warn+0xd8/0x100)
> [ 3.733123] [<c0137968>] (__warn) from [<c098e0f8>] (warn_slowpath_fmt+0x58/0xb8)
> [ 3.740661] [<c098e0f8>] (warn_slowpath_fmt) from [<c058d284>] (omap3_l3_app_irq+0xb4/0x120)
> [ 3.749145] [<c058d284>] (omap3_l3_app_irq) from [<c019b1c4>] (__handle_irq_event_percpu+0x48/0x208)
> [ 3.758331] [<c019b1c4>] (__handle_irq_event_percpu) from [<c019b3ac>] (handle_irq_event_percpu+0x28/0)
> [ 3.768035] [<c019b3ac>] (handle_irq_event_percpu) from [<c019b44c>] (handle_irq_event+0x48/0x6c)
> [ 3.776977] [<c019b44c>] (handle_irq_event) from [<c019fa90>] (handle_level_irq+0xc4/0x15c)
> [ 3.785369] [<c019fa90>] (handle_level_irq) from [<c019a3e0>] (generic_handle_irq+0x30/0x44)
> [ 3.793853] [<c019a3e0>] (generic_handle_irq) from [<c019a9f4>] (__handle_domain_irq+0x64/0xe0)
> [ 3.802612] [<c019a9f4>] (__handle_domain_irq) from [<c0100b6c>] (__irq_svc+0x6c/0x90)
> [ 3.810577] Exception stack(0xc10f9cd0 to 0xc10f9d18)
> [ 3.815673] 9cc0: 00000000 00000000 c10bda80 00000002
> [ 3.823883] 9ce0: 00000000 c10ecb40 00000000 00000000 c10f8000 00000000 bf000000 ffffe000
> [ 3.832122] 9d00: 00000000 c10f9d20 00000000 c01e0cd8 40000113 ffffffff
> [ 3.838775] [<c0100b6c>] (__irq_svc) from [<c01e0cd8>] (acct_collect+0x1b0/0x1cc)
> [ 3.846313] [<c01e0cd8>] (acct_collect) from [<c013ca10>] (do_exit+0x1d0/0xb44)
> [ 3.853668] [<c013ca10>] (do_exit) from [<c010b860>] (die+0x324/0x364)
> [ 3.860229] [<c010b860>] (die) from [<c01154e0>] (do_DataAbort+0x9c/0xb8)
> [ 3.867065] [<c01154e0>] (do_DataAbort) from [<c0100ac0>] (__dabt_svc+0x60/0xa0)
> [ 3.874511] Exception stack(0xc10f9db0 to 0xc10f9df8)
> [ 3.879608] 9da0: c175cb80 fa0b4000 58ad940c 00000001
> [ 3.887817] 9dc0: c175c800 c175cb80 c175ca58 c123e010 00000000 fa0b4000 c175cb80 00000066
> [ 3.896057] 9de0: c175c800 c10f9e00 c07996bc c079787c 20000013 ffffffff
> [ 3.902709] [<c0100ac0>] (__dabt_svc) from [<c079787c>] (omap_hsmmc_set_bus_width+0x8/0x78)
> [ 3.911102] [<c079787c>] (omap_hsmmc_set_bus_width) from [<c07996bc>] (omap_hsmmc_set_ios+0x11c/0x258)
> [ 3.920471] [<c07996bc>] (omap_hsmmc_set_ios) from [<c077b2b0>] (mmc_power_up.part.8+0x3c/0xd0)
> [ 3.929229] [<c077b2b0>] (mmc_power_up.part.8) from [<c077c14c>] (mmc_start_host+0x88/0x9c)
> [ 3.937622] [<c077c14c>] (mmc_start_host) from [<c077d284>] (mmc_add_host+0x58/0x84)
> [ 3.945434] [<c077d284>] (mmc_add_host) from [<c0799190>] (omap_hsmmc_probe+0x5fc/0x8c0)
> [ 3.953552] [<c0799190>] (omap_hsmmc_probe) from [<c0666728>] (platform_drv_probe+0x48/0x98)
> [ 3.962066] [<c0666728>] (platform_drv_probe) from [<c066457c>] (really_probe+0x1dc/0x3b4)
> [ 3.970367] [<c066457c>] (really_probe) from [<c06648b8>] (driver_probe_device+0x58/0xb4)
> [ 3.978607] [<c06648b8>] (driver_probe_device) from [<c066298c>] (bus_for_each_drv+0x7c/0xc4)
> [ 3.987182] [<c066298c>] (bus_for_each_drv) from [<c0663e60>] (__device_attach_async_helper+0xa4/0xd8)
> [ 3.996551] [<c0663e60>] (__device_attach_async_helper) from [<c015da48>] (async_run_entry_fn+0x3c/0x1)
> [ 4.006164] [<c015da48>] (async_run_entry_fn) from [<c0153b74>] (process_one_work+0x228/0x574)
> [ 4.014831] [<c0153b74>] (process_one_work) from [<c0153eec>] (worker_thread+0x2c/0x5d0)
> [ 4.022979] [<c0153eec>] (worker_thread) from [<c015a9ac>] (kthread+0x130/0x144)
> [ 4.030426] [<c015a9ac>] (kthread) from [<c0100168>] (ret_from_fork+0x14/0x2c)
> [ 4.037689] Exception stack(0xc10f9fb0 to 0xc10f9ff8)
> [ 4.042755] 9fa0: 00000000 00000000 00000000 00000000
> [ 4.050994] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> [ 4.059204] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
> [ 4.065856] ---[ end trace 085f2ded837c839e ]---
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [REGRESSION] mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-12-03 21:43 ` [REGRESSION] mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4 Andreas Kemnade
@ 2020-12-03 22:03 ` Doug Anderson
2020-12-04 8:22 ` Andreas Kemnade
0 siblings, 1 reply; 5+ messages in thread
From: Doug Anderson @ 2020-12-03 22:03 UTC (permalink / raw)
To: Andreas Kemnade
Cc: Linux MMC List, Discussions about the Letux Kernel,
Linux OMAP Mailing List, Wolfram Sang, Thierry Reding,
Ulf Hansson, Tony Lindgren
Hi,
On Thu, Dec 3, 2020 at 1:43 PM Andreas Kemnade <andreas@kemnade.info> wrote:
>
> On Tue, 1 Dec 2020 21:00:39 +0100
> Andreas Kemnade <andreas@kemnade.info> wrote:
>
> > Hi,
> >
> > during probing of second mmc host on the GTA04A5 which has a
> > WL1835 wifi chip attached, I get the following oops. From a first glance
> > this seems to be a timing sensitive. Maybe it rings some bells for someone...
> > so I hesitate a bit to start the bisect job.
> Did the bisect job.
> 21b2cec61c04 (mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4)
>
> is the evil commit. Reverting it on top of v5.10-rc6 solves the problem.
>
> > Wild guessing: bus width is set while mmc module is not active, so registers
> > are not accessible.
> > Kernel configuration is omap2plus_defconfig
> >
> > Regards,
> > Andreas
> >
> >
...snip...
> > [ 3.152587] mmcblk0: p1 p2 p3 p4 < p5 p6 p7 p8 >
> > [ 3.159393] 0x000000880000-0x000020000000 : "File System"
> > [ 3.179534] omap_hsmmc 480b4000.mmc: omap_device_late_idle: enabled but no driver. Idling
I'm guessing that this is the key line. It seems to come from
omap_device_late_idle().
I don't know tons about that function, but a quick guess is that it needs a:
wait_for_device_probe();
...at the start of it. It seems like it's trying to idle devices that
never got probed but not actually waiting for all devices to probe.
It's just assuming that everything is done by late_initcall_sync().
If that doesn't work, you could use the heavy hammer of changing
things to "PROBE_FORCE_SYNCHRONOUS" in your MMC driver, but IMO that's
kinda papering over the problem...
-Doug
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [REGRESSION] mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-12-03 22:03 ` Doug Anderson
@ 2020-12-04 8:22 ` Andreas Kemnade
2021-01-08 19:07 ` Adam Ford
0 siblings, 1 reply; 5+ messages in thread
From: Andreas Kemnade @ 2020-12-04 8:22 UTC (permalink / raw)
To: Doug Anderson
Cc: Linux MMC List, Discussions about the Letux Kernel,
Linux OMAP Mailing List, Wolfram Sang, Thierry Reding,
Ulf Hansson, Tony Lindgren
On Thu, 3 Dec 2020 14:03:46 -0800
Doug Anderson <dianders@chromium.org> wrote:
> Hi,
>
> On Thu, Dec 3, 2020 at 1:43 PM Andreas Kemnade <andreas@kemnade.info> wrote:
> >
> > On Tue, 1 Dec 2020 21:00:39 +0100
> > Andreas Kemnade <andreas@kemnade.info> wrote:
> >
> > > Hi,
> > >
> > > during probing of second mmc host on the GTA04A5 which has a
> > > WL1835 wifi chip attached, I get the following oops. From a first glance
> > > this seems to be a timing sensitive. Maybe it rings some bells for someone...
> > > so I hesitate a bit to start the bisect job.
> > Did the bisect job.
> > 21b2cec61c04 (mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4)
> >
> > is the evil commit. Reverting it on top of v5.10-rc6 solves the problem.
> >
> > > Wild guessing: bus width is set while mmc module is not active, so registers
> > > are not accessible.
> > > Kernel configuration is omap2plus_defconfig
> > >
> > > Regards,
> > > Andreas
> > >
> > >
>
> ...snip...
>
> > > [ 3.152587] mmcblk0: p1 p2 p3 p4 < p5 p6 p7 p8 >
> > > [ 3.159393] 0x000000880000-0x000020000000 : "File System"
> > > [ 3.179534] omap_hsmmc 480b4000.mmc: omap_device_late_idle: enabled but no driver. Idling
>
> I'm guessing that this is the key line. It seems to come from
> omap_device_late_idle().
>
> I don't know tons about that function, but a quick guess is that it needs a:
>
> wait_for_device_probe();
>
> ...at the start of it. It seems like it's trying to idle devices that
> never got probed but not actually waiting for all devices to probe.
> It's just assuming that everything is done by late_initcall_sync().
>
hmm, not sure, we have:
if (od->_driver_status != BUS_NOTIFY_BOUND_DRIVER &&
od->_driver_status != BUS_NOTIFY_BIND_DRIVER) {
if (od->_state == OMAP_DEVICE_STATE_ENABLED) {
dev_warn(dev, "%s: enabled but no driver. Idling\n",
__func__);
omap_device_idle(pdev);
}
}
apparently there is no code to set _driver_status to
BUS_NOTIFY_BOUND_DRIVER. I think that is the key problem. I will try to
create a patch to fix that.
Regards,
Andreas
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [REGRESSION] mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4
2020-12-04 8:22 ` Andreas Kemnade
@ 2021-01-08 19:07 ` Adam Ford
0 siblings, 0 replies; 5+ messages in thread
From: Adam Ford @ 2021-01-08 19:07 UTC (permalink / raw)
To: Andreas Kemnade
Cc: Doug Anderson, Linux MMC List,
Discussions about the Letux Kernel, Linux OMAP Mailing List,
Wolfram Sang, Thierry Reding, Ulf Hansson, Tony Lindgren
On Fri, Dec 4, 2020 at 2:23 AM Andreas Kemnade <andreas@kemnade.info> wrote:
>
> On Thu, 3 Dec 2020 14:03:46 -0800
> Doug Anderson <dianders@chromium.org> wrote:
>
> > Hi,
> >
> > On Thu, Dec 3, 2020 at 1:43 PM Andreas Kemnade <andreas@kemnade.info> wrote:
> > >
> > > On Tue, 1 Dec 2020 21:00:39 +0100
> > > Andreas Kemnade <andreas@kemnade.info> wrote:
> > >
> > > > Hi,
> > > >
> > > > during probing of second mmc host on the GTA04A5 which has a
> > > > WL1835 wifi chip attached, I get the following oops. From a first glance
> > > > this seems to be a timing sensitive. Maybe it rings some bells for someone...
> > > > so I hesitate a bit to start the bisect job.
> > > Did the bisect job.
> > > 21b2cec61c04 (mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4)
> > >
> > > is the evil commit. Reverting it on top of v5.10-rc6 solves the problem.
> > >
> > > > Wild guessing: bus width is set while mmc module is not active, so registers
> > > > are not accessible.
> > > > Kernel configuration is omap2plus_defconfig
> > > >
> > > > Regards,
> > > > Andreas
> > > >
> > > >
> >
> > ...snip...
> >
> > > > [ 3.152587] mmcblk0: p1 p2 p3 p4 < p5 p6 p7 p8 >
> > > > [ 3.159393] 0x000000880000-0x000020000000 : "File System"
> > > > [ 3.179534] omap_hsmmc 480b4000.mmc: omap_device_late_idle: enabled but no driver. Idling
> >
> > I'm guessing that this is the key line. It seems to come from
> > omap_device_late_idle().
> >
> > I don't know tons about that function, but a quick guess is that it needs a:
> >
> > wait_for_device_probe();
> >
> > ...at the start of it. It seems like it's trying to idle devices that
> > never got probed but not actually waiting for all devices to probe.
> > It's just assuming that everything is done by late_initcall_sync().
> >
> hmm, not sure, we have:
> if (od->_driver_status != BUS_NOTIFY_BOUND_DRIVER &&
> od->_driver_status != BUS_NOTIFY_BIND_DRIVER) {
> if (od->_state == OMAP_DEVICE_STATE_ENABLED) {
> dev_warn(dev, "%s: enabled but no driver. Idling\n",
> __func__);
> omap_device_idle(pdev);
> }
> }
>
> apparently there is no code to set _driver_status to
> BUS_NOTIFY_BOUND_DRIVER. I think that is the key problem. I will try to
> create a patch to fix that.
I am seeing something similar on my DM3730
>
> Regards,
> Andreas
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-01-08 19:08 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-12-01 20:00 Bug: Kernel oops during probing of mmc with WL1835 on GTA04A5 Andreas Kemnade
2020-12-03 21:43 ` [REGRESSION] mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4 Andreas Kemnade
2020-12-03 22:03 ` Doug Anderson
2020-12-04 8:22 ` Andreas Kemnade
2021-01-08 19:07 ` Adam Ford
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