* [x86] Kernel panic - not syncing: Fatal exception in interrupt
@ 2013-07-20 13:12 Fengguang Wu
2013-07-21 0:23 ` H. Peter Anvin
2013-07-22 11:14 ` [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier Jiri Kosina
0 siblings, 2 replies; 20+ messages in thread
From: Fengguang Wu @ 2013-07-20 13:12 UTC (permalink / raw)
To: fengguang.wu, Jiri Kosina; +Cc: H. Peter Anvin, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 5674 bytes --]
Greetings,
I got the below dmesg and the first bad commit is
commit 51b2c07b22261f19188d9a9071943d60a067481c
Author: Jiri Kosina <jkosina@suse.cz>
Date: Fri Jul 12 11:22:09 2013 +0200
x86: Make jump_label use int3-based patching
Make jump labels use text_poke_bp() for text patching instead of
text_poke_smp(), avoiding the need for stop_machine().
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Link: http://lkml.kernel.org/r/alpine.LNX.2.00.1307121120250.29788@pobox.suse.cz
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Parent commit not clean. Look out for wrong bisect!
BUG: kernel boot crashed
/kernel/x86_64-randconfig-c05-0718/fd4363fff3d96795d3feb1b3fb48ce590f186bdd/dmesg-kvm-xbm-7912-20130720142415-3.11.0-rc1-00166-g1faabf2-146
[ 0.212429] devtmpfs: initialized
[ 0.236027] int3: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 0.237157] Modules linked in:
[ 0.237765] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.11.0-rc1-01429-g04bf576 #8
[ 0.239129] task: ffff88000da1b040 ti: ffff88000da1c000 task.ti: ffff88000da1c000
[ 0.240000] RIP: 0010:[<ffffffff811098cc>] [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
[ 0.240000] RSP: 0000:ffff88000dd03f10 EFLAGS: 00000006
[ 0.240000] RAX: 0000000000000000 RBX: ffff88000dd12940 RCX: ffffffff81769c40
[ 0.240000] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000001
[ 0.240000] RBP: ffff88000dd03f28 R08: ffffffff8176a8c0 R09: 0000000000000002
[ 0.240000] R10: ffffffff810ff484 R11: ffff88000dd129e8 R12: ffff88000dbc90c0
[ 0.240000] R13: ffff88000dbc90c0 R14: ffff88000da1dfd8 R15: ffff88000da1dfd8
[ 0.240000] FS: 0000000000000000(0000) GS:ffff88000dd00000(0000) knlGS:0000000000000000
[ 0.240000] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 0.240000] CR2: 00000000ffffffff CR3: 0000000001c88000 CR4: 00000000000006e0
[ 0.240000] Stack:
[ 0.240000] ffff88000dd12940 ffff88000dbc90c0 ffff88000da1dfd8 ffff88000dd03f48
[ 0.240000] ffffffff81109e2b ffff88000dd12940 0000000000000000 ffff88000dd03f68
[ 0.240000] ffffffff81109e9e 0000000000000000 0000000000012940 ffff88000dd03f98
[ 0.240000] Call Trace:
[ 0.240000] <IRQ>
[ 0.240000] [<ffffffff81109e2b>] ttwu_do_activate.constprop.56+0x6d/0x79
[ 0.240000] [<ffffffff81109e9e>] sched_ttwu_pending+0x67/0x84
[ 0.240000] [<ffffffff8110c845>] scheduler_ipi+0x15a/0x2b0
[ 0.240000] [<ffffffff8104dfb4>] smp_reschedule_interrupt+0x38/0x41
[ 0.240000] [<ffffffff8173bf5d>] reschedule_interrupt+0x6d/0x80
[ 0.240000] <EOI>
[ 0.240000] [<ffffffff810ff484>] ? __atomic_notifier_call_chain+0x5/0xc1
[ 0.240000] [<ffffffff8105cc30>] ? native_safe_halt+0xd/0x16
[ 0.240000] [<ffffffff81015f10>] default_idle+0x147/0x282
[ 0.240000] [<ffffffff81017026>] arch_cpu_idle+0x3d/0x5d
[ 0.240000] [<ffffffff81127d6a>] cpu_idle_loop+0x46d/0x5db
[ 0.240000] [<ffffffff81127f5c>] cpu_startup_entry+0x84/0x84
[ 0.240000] [<ffffffff8104f4f8>] start_secondary+0x3c8/0x3d5
[ 0.240000] Code: 5c 5d c3 e8 d7 0f 63 00 55 48 ff 05 1f 5d 1e 01 48 89 e5 41 55 49 89 f5 41 54 53 48 89 fb e8 8d fe ff ff 48 ff 05 0d 5d 1e 01 cc <1f> 44 00 00 31 c0 eb 0c 48 ff 05 05 5d 1e 01 b8 01 00 00 00 48
[ 0.240000] RIP [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
[ 0.240000] RSP <ffff88000dd03f10>
[ 0.240000] ---[ end trace 0d3288a047152a17 ]---
git bisect start 04bf57606b28bfa283bd118e4ea032151b02f6df 61f98b0fca802d7e0191072606519e2230a6226d --
git bisect good 4b6cd6e8fdab82632dff52f495ea60c712d3ce0e # 11:12 55+ kvm tools: Update README
git bisect good c56875099528aa54eb28b5feb11935c4069b5835 # 11:46 55+ kvm tools: Fix 'lkvm stop' when guest is pasued.
git bisect good 3b1938c28d3f6e28d7ecf2e30324e80a5a7fff35 # 11:58 55+ kvm tools: move kvm_config into struct kvm
git bisect good 7c6238bf263d8488878d17377ae0f255a93f6927 # 12:22 55+ kvm tools: remove unneeded checks in qcow code
git bisect good 7160bbc1d66580a9eb7ee9251e4b58d34d264baa # 12:58 55+ kvm tools: ioport: allow ioport devices to generate fdt nodes
git bisect bad 54396a651817c510d8d5405cf2ddfce9d3a7108d # 13:07 12- Merge branch 'x86/urgent'
git bisect good b8e7b7b26a0082c461d1be51fbe411a0d1cf196f # 13:27 55+ Merge branch 'x86/asm'
git bisect bad 63a1d00d179f794012001c50afacadc98b2c4b81 # 13:32 12- Merge branch 'x86/jumplabel'
git bisect good 237d1548543312fcc8c99d302ab68fbf8ef6f97f # 13:44 75+ x86: Fix override new_cpu_data.x86 with 486
git bisect bad 51b2c07b22261f19188d9a9071943d60a067481c # 13:53 65- x86: Make jump_label use int3-based patching
git bisect good fd4363fff3d96795d3feb1b3fb48ce590f186bdd # 14:18 340+ x86: Introduce int3 (breakpoint)-based instruction patching
git bisect good fd4363fff3d96795d3feb1b3fb48ce590f186bdd # 14:24 1020+ x86: Introduce int3 (breakpoint)-based instruction patching
git bisect bad 04bf57606b28bfa283bd118e4ea032151b02f6df # 14:25 0- Merge branch 'sched/urgent'
git bisect good a1fab3cce9730d3ec8d5caf2e6acb0a0ff8dd240 # 14:39 1020+ Revert "x86: Make jump_label use int3-based patching"
git bisect good d471ce53b1fab60110e4e9f647a345cea31752de # 17:31 1020+ Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
git bisect bad c1f631b9a68251007a6353041ae90f9f7dca771c # 17:31 0- Add linux-next specific files for 20130719
git bisect bad 5a69985392e60abcaeb2243faf040488330a6ae8 # 17:34 22- Merge branch 'perf/core'
Thanks,
Fengguang
[-- Attachment #2: dmesg-kvm-snb-16313-20130718213435-3.11.0-rc1-00026-g0ec5f3a-58 --]
[-- Type: text/plain, Size: 26293 bytes --]
[ 0.000000] Linux version 3.11.0-rc1-01429-g04bf576 (kbuild@cairo) (gcc version 4.8.1 (Debian 4.8.1-3) ) #8 SMP PREEMPT Thu Jul 18 21:29:12 CST 2013
[ 0.000000] Command line: hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-c05-0718/tip:master/.vmlinuz-04bf57606b28bfa283bd118e4ea032151b02f6df-20130718213155-3-snb branch=tip/master BOOT_IMAGE=/kernel/x86_64-randconfig-c05-0718/04bf57606b28bfa283bd118e4ea032151b02f6df/vmlinuz-3.11.0-rc1-01429-g04bf576
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 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 0x0000000000100000-0x000000000fffdfff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000fffe000-0x000000000fffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] Hypervisor detected: KVM
[ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.000000] No AGP bridge found
[ 0.000000] e820: last_pfn = 0xfffe max_arch_pfn = 0x400000000
[ 0.000000] MTRR default type: write-back
[ 0.000000] MTRR fixed ranges enabled:
[ 0.000000] 00000-9FFFF write-back
[ 0.000000] A0000-BFFFF uncachable
[ 0.000000] C0000-FFFFF write-protect
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 0080000000 mask FF80000000 uncachable
[ 0.000000] 1 disabled
[ 0.000000] 2 disabled
[ 0.000000] 3 disabled
[ 0.000000] 4 disabled
[ 0.000000] 5 disabled
[ 0.000000] 6 disabled
[ 0.000000] 7 disabled
[ 0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576
[ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[ 0.000000] [mem 0x00000000-0x000fffff] page 4k
[ 0.000000] BRK [0x02d2d000, 0x02d2dfff] PGTABLE
[ 0.000000] BRK [0x02d2e000, 0x02d2efff] PGTABLE
[ 0.000000] BRK [0x02d2f000, 0x02d2ffff] PGTABLE
[ 0.000000] init_memory_mapping: [mem 0x0e600000-0x0e7fffff]
[ 0.000000] [mem 0x0e600000-0x0e7fffff] page 4k
[ 0.000000] BRK [0x02d30000, 0x02d30fff] PGTABLE
[ 0.000000] init_memory_mapping: [mem 0x0c000000-0x0e5fffff]
[ 0.000000] [mem 0x0c000000-0x0e5fffff] page 4k
[ 0.000000] BRK [0x02d31000, 0x02d31fff] PGTABLE
[ 0.000000] init_memory_mapping: [mem 0x00100000-0x0bffffff]
[ 0.000000] [mem 0x00100000-0x0bffffff] page 4k
[ 0.000000] init_memory_mapping: [mem 0x0e800000-0x0fffdfff]
[ 0.000000] [mem 0x0e800000-0x0fffdfff] page 4k
[ 0.000000] log_buf_len: 8388608
[ 0.000000] early log buf free: 127764(97%)
[ 0.000000] RAMDISK: [mem 0x0e8d6000-0x0ffeffff]
[ 0.000000] ACPI: RSDP 00000000000fd920 00014 (v00 BOCHS )
[ 0.000000] ACPI: RSDT 000000000fffe450 00034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACP 000000000fffff80 00074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
[ 0.000000] ACPI: DSDT 000000000fffe490 011A9 (v01 BXPC BXDSDT 00000001 INTL 20100528)
[ 0.000000] ACPI: FACS 000000000fffff40 00040
[ 0.000000] ACPI: SSDT 000000000ffff7a0 00796 (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: APIC 000000000ffff680 00080 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
[ 0.000000] ACPI: HPET 000000000ffff640 00038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] mapped APIC to ffffffffff5fa000 ( fee00000)
[ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000000] kvm-clock: cpu 0, msr 0:fffd001, boot clock
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x00001000-0x00ffffff]
[ 0.000000] DMA32 [mem 0x01000000-0xffffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00001000-0x0009efff]
[ 0.000000] node 0: [mem 0x00100000-0x0fffdfff]
[ 0.000000] On node 0 totalpages: 65436
[ 0.000000] DMA zone: 64 pages used for memmap
[ 0.000000] DMA zone: 21 pages reserved
[ 0.000000] DMA zone: 3998 pages, LIFO batch:0
[ 0.000000] DMA32 zone: 960 pages used for memmap
[ 0.000000] DMA32 zone: 61438 pages, LIFO batch:15
[ 0.000000] ACPI: PM-Timer IO Port: 0xb008
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] mapped APIC to ffffffffff5fa000 ( fee00000)
[ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
[ 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] Int: type 0, pol 0, trig 0, bus 00, IRQ 00, APIC ID 0, APIC INT 02
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 05, APIC ID 0, APIC INT 05
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 09, APIC ID 0, APIC INT 09
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0a, APIC ID 0, APIC INT 0a
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0b, APIC ID 0, APIC INT 0b
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 0, APIC INT 01
[ 0.000000] ACPI: IRQ2 used by override.
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 0, APIC INT 03
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 0, APIC INT 04
[ 0.000000] ACPI: IRQ5 used by override.
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 0, APIC INT 06
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 0, APIC INT 07
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 0, APIC INT 08
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] ACPI: IRQ10 used by override.
[ 0.000000] ACPI: IRQ11 used by override.
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 0, APIC INT 0c
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 0, APIC INT 0d
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 0, APIC INT 0e
[ 0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 0, APIC INT 0f
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs
[ 0.000000] mapped IOAPIC to ffffffffff5f9000 (fec00000)
[ 0.000000] nr_irqs_gsi: 40
[ 0.000000] e820: [mem 0x10000000-0xfeffbfff] available for PCI devices
[ 0.000000] Booting paravirtualized kernel on KVM
[ 0.000000] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 27 pages/cpu @ffff88000dc00000 s79240 r8192 d23160 u1048576
[ 0.000000] pcpu-alloc: s79240 r8192 d23160 u1048576 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0 1
[ 0.000000] kvm-clock: cpu 0, msr 0:fffd001, primary cpu clock
[ 0.000000] KVM setup async PF for cpu 0
[ 0.000000] kvm-stealtime: cpu 0, msr dc0ce40
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 64391
[ 0.000000] Kernel command line: hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-c05-0718/tip:master/.vmlinuz-04bf57606b28bfa283bd118e4ea032151b02f6df-20130718213155-3-snb branch=tip/master BOOT_IMAGE=/kernel/x86_64-randconfig-c05-0718/04bf57606b28bfa283bd118e4ea032151b02f6df/vmlinuz-3.11.0-rc1-01429-g04bf576
[ 0.000000] sysrq: sysrq always enabled.
[ 0.000000] PID hash table entries: 1024 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
[ 0.000000] Checking aperture...
[ 0.000000] No AGP bridge found
[ 0.000000] Memory: 194116K/261744K available (7418K kernel code, 4879K rwdata, 5344K rodata, 944K init, 11228K bss, 67628K reserved)
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000]
[ 0.000000]
[ 0.000000]
[ 0.000000]
[ 0.000000]
[ 0.000000] NR_IRQS:4352 nr_irqs:512 16
[ 0.000000] console [ttyS0] enabled
[ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.000000] ... MAX_LOCK_DEPTH: 48
[ 0.000000] ... MAX_LOCKDEP_KEYS: 8191
[ 0.000000] ... CLASSHASH_SIZE: 4096
[ 0.000000] ... MAX_LOCKDEP_ENTRIES: 16384
[ 0.000000] ... MAX_LOCKDEP_CHAINS: 32768
[ 0.000000] ... CHAINHASH_SIZE: 16384
[ 0.000000] memory used by lock dependency info: 5823 kB
[ 0.000000] per task-struct memory footprint: 1920 bytes
[ 0.000000] ------------------------
[ 0.000000] | Locking API testsuite:
[ 0.000000] ----------------------------------------------------------------------------
[ 0.000000] | spin |wlock |rlock |mutex | wsem | rsem |
[ 0.000000] --------------------------------------------------------------------------
[ 0.000000] A-A deadlock:failed|failed| ok |failed|failed|failed|
[ 0.000000] A-B-B-A deadlock:failed|failed| ok |failed|failed|failed|
[ 0.000000] A-B-B-C-C-A deadlock:failed|failed| ok |failed|failed|failed|
[ 0.000000] A-B-C-A-B-C deadlock:failed|failed| ok |failed|failed|failed|
[ 0.000000] A-B-B-C-C-D-D-A deadlock:failed|failed| ok |failed|failed|failed|
[ 0.000000] A-B-C-D-B-D-D-A deadlock:failed|failed| ok |failed|failed|failed|
[ 0.000000] A-B-C-D-B-C-D-A deadlock:failed|failed| ok |failed|failed|failed|
[ 0.000000] double unlock: ok | ok | ok | ok | ok | ok |
[ 0.000000] initialize held: ok | ok | ok | ok | ok | ok |
[ 0.000000] bad unlock order: ok | ok | ok | ok | ok | ok |
[ 0.000000] --------------------------------------------------------------------------
[ 0.000000] recursive read-lock: | ok | |failed|
[ 0.000000] recursive read-lock #2: | ok | |failed|
[ 0.000000] mixed read-write-lock: |failed| |failed|
[ 0.000000] mixed write-read-lock: |failed| |failed|
[ 0.000000] --------------------------------------------------------------------------
[ 0.000000] hard-irqs-on + irq-safe-A/12:failed|failed| ok |
[ 0.000000] soft-irqs-on + irq-safe-A/12:failed|failed| ok |
[ 0.000000] hard-irqs-on + irq-safe-A/21:failed|failed| ok |
[ 0.000000] soft-irqs-on + irq-safe-A/21:failed|failed| ok |
[ 0.000000] sirq-safe-A => hirqs-on/12:failed|failed| ok |
[ 0.000000] sirq-safe-A => hirqs-on/21:failed|failed| ok |
[ 0.000000] hard-safe-A + irqs-on/12:failed|failed| ok |
[ 0.000000] soft-safe-A + irqs-on/12:failed|failed| ok |
[ 0.000000] hard-safe-A + irqs-on/21:failed|failed| ok |
[ 0.000000] soft-safe-A + irqs-on/21:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #1/123:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #1/123:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #1/132:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #1/132:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #1/213:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #1/213:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #1/231:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #1/231:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #1/312:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #1/312:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #1/321:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #1/321:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #2/123:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #2/123:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #2/132:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #2/132:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #2/213:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #2/213:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #2/231:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #2/231:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #2/312:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #2/312:failed|failed| ok |
[ 0.000000] hard-safe-A + unsafe-B #2/321:failed|failed| ok |
[ 0.000000] soft-safe-A + unsafe-B #2/321:failed|failed| ok |
[ 0.000000] hard-irq lock-inversion/123:failed|failed| ok |
[ 0.000000] soft-irq lock-inversion/123:failed|failed| ok |
[ 0.000000] hard-irq lock-inversion/132:failed|failed| ok |
[ 0.000000] soft-irq lock-inversion/132:failed|failed| ok |
[ 0.000000] hard-irq lock-inversion/213:failed|failed| ok |
[ 0.000000] soft-irq lock-inversion/213:failed|failed| ok |
[ 0.000000] hard-irq lock-inversion/231:failed|failed| ok |
[ 0.000000] soft-irq lock-inversion/231:failed|failed| ok |
[ 0.000000] hard-irq lock-inversion/312:failed|failed| ok |
[ 0.000000] soft-irq lock-inversion/312:failed|failed| ok |
[ 0.000000] hard-irq lock-inversion/321:failed|failed| ok |
[ 0.000000] soft-irq lock-inversion/321:failed|failed| ok |
[ 0.000000] hard-irq read-recursion/123: ok |
[ 0.000000] soft-irq read-recursion/123: ok |
[ 0.000000] hard-irq read-recursion/132: ok |
[ 0.000000] soft-irq read-recursion/132: ok |
[ 0.000000] hard-irq read-recursion/213: ok |
[ 0.000000] soft-irq read-recursion/213: ok |
[ 0.000000] hard-irq read-recursion/231: ok |
[ 0.000000] soft-irq read-recursion/231: ok |
[ 0.000000] hard-irq read-recursion/312: ok |
[ 0.000000] soft-irq read-recursion/312: ok |
[ 0.000000] hard-irq read-recursion/321: ok |
[ 0.000000] soft-irq read-recursion/321: ok |
[ 0.000000] --------------------------------------------------------------------------
[ 0.000000] | Wound/wait tests |
[ 0.000000] ---------------------
[ 0.000000] ww api failures: ok | ok | ok |
[ 0.000000] ww contexts mixing:failed| ok |
[ 0.000000] finishing ww context: ok | ok | ok | ok |
[ 0.000000] locking mismatches: ok | ok | ok |
[ 0.000000] EDEADLK handling: ok | ok | ok | ok | ok | ok | ok | ok | ok | ok |
[ 0.000000] spinlock nest unlocked: ok |
[ 0.000000] -----------------------------------------------------
[ 0.000000] |block | try |context|
[ 0.000000] -----------------------------------------------------
[ 0.000000] context:failed| ok | ok |
[ 0.000000] try:failed| ok |failed|
[ 0.000000] block:failed| ok |failed|
[ 0.000000] spinlock:failed| ok |failed|
[ 0.000000] --------------------------------------------------------
[ 0.000000] 141 out of 253 testcases failed, as expected. |
[ 0.000000] ----------------------------------------------------
[ 0.000000] ODEBUG: 13 of 13 active objects replaced
[ 0.000000] hpet clockevent registered
[ 0.000000] tsc: Detected 2300.192 MHz processor
[ 0.008000] Calibrating delay loop (skipped) preset value.. 4600.38 BogoMIPS (lpj=9200768)
[ 0.008000] pid_max: default: 32768 minimum: 301
[ 0.008389] Mount-cache hash table entries: 256
[ 0.009817] Initializing cgroup subsys debug
[ 0.010661] Initializing cgroup subsys perf_event
[ 0.012023] Initializing cgroup subsys hugetlb
[ 0.013022] mce: CPU supports 10 MCE banks
[ 0.013908] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.013908] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.013908] tlb_flushall_shift: 6
[ 0.016155] debug: unmapping init [mem 0xffffffff82233000-0xffffffff82235fff]
[ 0.024574] ACPI: Core revision 20130517
[ 0.030172] ACPI: All ACPI Tables successfully acquired
[ 0.031611] Getting VERSION: 50014
[ 0.032034] Getting VERSION: 50014
[ 0.032703] Getting ID: 0
[ 0.033231] Getting ID: ff000000
[ 0.033895] Getting LVT0: 8700
[ 0.034483] Getting LVT1: 8400
[ 0.035182] enabled ExtINT on CPU#0
[ 0.037629] ENABLING IO-APIC IRQs
[ 0.038281] init IO_APIC IRQs
[ 0.038862] apic 0 pin 0 not connected
[ 0.039620] IOAPIC[0]: Set routing entry (0-1 -> 0x31 -> IRQ 1 Mode:0 Active:0 Dest:1)
[ 0.040061] IOAPIC[0]: Set routing entry (0-2 -> 0x30 -> IRQ 0 Mode:0 Active:0 Dest:1)
[ 0.041573] IOAPIC[0]: Set routing entry (0-3 -> 0x33 -> IRQ 3 Mode:0 Active:0 Dest:1)
[ 0.044055] IOAPIC[0]: Set routing entry (0-4 -> 0x34 -> IRQ 4 Mode:0 Active:0 Dest:1)
[ 0.045548] IOAPIC[0]: Set routing entry (0-5 -> 0x35 -> IRQ 5 Mode:1 Active:0 Dest:1)
[ 0.047037] IOAPIC[0]: Set routing entry (0-6 -> 0x36 -> IRQ 6 Mode:0 Active:0 Dest:1)
[ 0.048055] IOAPIC[0]: Set routing entry (0-7 -> 0x37 -> IRQ 7 Mode:0 Active:0 Dest:1)
[ 0.049539] IOAPIC[0]: Set routing entry (0-8 -> 0x38 -> IRQ 8 Mode:0 Active:0 Dest:1)
[ 0.052054] IOAPIC[0]: Set routing entry (0-9 -> 0x39 -> IRQ 9 Mode:1 Active:0 Dest:1)
[ 0.053550] IOAPIC[0]: Set routing entry (0-10 -> 0x3a -> IRQ 10 Mode:1 Active:0 Dest:1)
[ 0.055142] IOAPIC[0]: Set routing entry (0-11 -> 0x3b -> IRQ 11 Mode:1 Active:0 Dest:1)
[ 0.056056] IOAPIC[0]: Set routing entry (0-12 -> 0x3c -> IRQ 12 Mode:0 Active:0 Dest:1)
[ 0.057582] IOAPIC[0]: Set routing entry (0-13 -> 0x3d -> IRQ 13 Mode:0 Active:0 Dest:1)
[ 0.060065] IOAPIC[0]: Set routing entry (0-14 -> 0x3e -> IRQ 14 Mode:0 Active:0 Dest:1)
[ 0.061590] IOAPIC[0]: Set routing entry (0-15 -> 0x3f -> IRQ 15 Mode:0 Active:0 Dest:1)
[ 0.063128] apic 0 pin 16 not connected
[ 0.064021] apic 0 pin 17 not connected
[ 0.064799] apic 0 pin 18 not connected
[ 0.065538] apic 0 pin 19 not connected
[ 0.066292] apic 0 pin 20 not connected
[ 0.067015] apic 0 pin 21 not connected
[ 0.067753] apic 0 pin 22 not connected
[ 0.068021] apic 0 pin 23 not connected
[ 0.068979] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.070555] smpboot: CPU0: Intel Common KVM processor (fam: 0f, model: 06, stepping: 01)
[ 0.073737] Using local APIC timer interrupts.
[ 0.073737] calibrating APIC timer ...
[ 0.080000] ... lapic delta = 6249949
[ 0.080000] ... PM-Timer delta = 357952
[ 0.080000] ... PM-Timer result ok
[ 0.080000] ..... delta 6249949
[ 0.080000] ..... mult: 268433265
[ 0.080000] ..... calibration result: 3999967
[ 0.080000] ..... CPU clock speed is 2299.3921 MHz.
[ 0.080000] ..... host bus clock speed is 999.3967 MHz.
[ 0.080298] Performance Events: unsupported Netburst CPU model 6 no PMU driver, software events only.
[ 0.096488] ftrace: Allocated trace_printk buffers
[ 0.109854] SMP alternatives: lockdep: fixing up alternatives
[ 0.111812] smpboot: Booting Node 0, Processors #1 OK
[ 0.008000] kvm-clock: cpu 1, msr 0:fffd041, secondary cpu clock
[ 0.008000] masked ExtINT on CPU#1
[ 0.148383] Brought up 2 CPUs
[ 0.149013] ----------------
[ 0.152017] | NMI testsuite:
[ 0.152578] --------------------
[ 0.153172] remote IPI:
[ 0.160016] KVM setup async PF for cpu 1
[ 0.160773] kvm-stealtime: cpu 1, msr dd0ce40
ok |
[ 0.172279] local IPI: ok |
[ 0.196037] --------------------
[ 0.196696] Good, all 2 testcases passed! |
[ 0.197497] ---------------------------------
[ 0.198288] smpboot: Total of 2 processors activated (9200.76 BogoMIPS)
[ 0.212429] devtmpfs: initialized
[ 0.236027] int3: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 0.237157] Modules linked in:
[ 0.237765] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.11.0-rc1-01429-g04bf576 #8
[ 0.239129] task: ffff88000da1b040 ti: ffff88000da1c000 task.ti: ffff88000da1c000
[ 0.240000] RIP: 0010:[<ffffffff811098cc>] [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
[ 0.240000] RSP: 0000:ffff88000dd03f10 EFLAGS: 00000006
[ 0.240000] RAX: 0000000000000000 RBX: ffff88000dd12940 RCX: ffffffff81769c40
[ 0.240000] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000001
[ 0.240000] RBP: ffff88000dd03f28 R08: ffffffff8176a8c0 R09: 0000000000000002
[ 0.240000] R10: ffffffff810ff484 R11: ffff88000dd129e8 R12: ffff88000dbc90c0
[ 0.240000] R13: ffff88000dbc90c0 R14: ffff88000da1dfd8 R15: ffff88000da1dfd8
[ 0.240000] FS: 0000000000000000(0000) GS:ffff88000dd00000(0000) knlGS:0000000000000000
[ 0.240000] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 0.240000] CR2: 00000000ffffffff CR3: 0000000001c88000 CR4: 00000000000006e0
[ 0.240000] Stack:
[ 0.240000] ffff88000dd12940 ffff88000dbc90c0 ffff88000da1dfd8 ffff88000dd03f48
[ 0.240000] ffffffff81109e2b ffff88000dd12940 0000000000000000 ffff88000dd03f68
[ 0.240000] ffffffff81109e9e 0000000000000000 0000000000012940 ffff88000dd03f98
[ 0.240000] Call Trace:
[ 0.240000] <IRQ>
[ 0.240000] [<ffffffff81109e2b>] ttwu_do_activate.constprop.56+0x6d/0x79
[ 0.240000] [<ffffffff81109e9e>] sched_ttwu_pending+0x67/0x84
[ 0.240000] [<ffffffff8110c845>] scheduler_ipi+0x15a/0x2b0
[ 0.240000] [<ffffffff8104dfb4>] smp_reschedule_interrupt+0x38/0x41
[ 0.240000] [<ffffffff8173bf5d>] reschedule_interrupt+0x6d/0x80
[ 0.240000] <EOI>
[ 0.240000] [<ffffffff810ff484>] ? __atomic_notifier_call_chain+0x5/0xc1
[ 0.240000] [<ffffffff8105cc30>] ? native_safe_halt+0xd/0x16
[ 0.240000] [<ffffffff81015f10>] default_idle+0x147/0x282
[ 0.240000] [<ffffffff81017026>] arch_cpu_idle+0x3d/0x5d
[ 0.240000] [<ffffffff81127d6a>] cpu_idle_loop+0x46d/0x5db
[ 0.240000] [<ffffffff81127f5c>] cpu_startup_entry+0x84/0x84
[ 0.240000] [<ffffffff8104f4f8>] start_secondary+0x3c8/0x3d5
[ 0.240000] Code: 5c 5d c3 e8 d7 0f 63 00 55 48 ff 05 1f 5d 1e 01 48 89 e5 41 55 49 89 f5 41 54 53 48 89 fb e8 8d fe ff ff 48 ff 05 0d 5d 1e 01 cc <1f> 44 00 00 31 c0 eb 0c 48 ff 05 05 5d 1e 01 b8 01 00 00 00 48
[ 0.240000] RIP [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
[ 0.240000] RSP <ffff88000dd03f10>
[ 0.240000] ---[ end trace 0d3288a047152a17 ]---
[ 0.240000] Kernel panic - not syncing: Fatal exception in interrupt
[ 0.240000] Rebooting in 10 seconds..
BUG: kernel boot crashed
Elapsed time: 20
qemu-system-x86_64 -cpu kvm64 -enable-kvm -kernel /tmp//kernel/x86_64-randconfig-c05-0718/04bf57606b28bfa283bd118e4ea032151b02f6df/vmlinuz-3.11.0-rc1-01429-g04bf576-16313 -append 'hung_task_panic=1 rcutree.rcu_cpu_stall_timeout=100 log_buf_len=8M ignore_loglevel debug sched_debug apic=debug dynamic_printk sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kernel-tests/run-queue/kvm/x86_64-randconfig-c05-0718/tip:master/.vmlinuz-04bf57606b28bfa283bd118e4ea032151b02f6df-20130718213155-3-snb branch=tip/master BOOT_IMAGE=/kernel/x86_64-randconfig-c05-0718/04bf57606b28bfa283bd118e4ea032151b02f6df/vmlinuz-3.11.0-rc1-01429-g04bf576' -initrd /kernel-tests/initrd/quantal-core-x86_64.cgz -m 256M -smp 2 -net nic,vlan=0,macaddr=00:00:00:00:00:00,model=virtio -net user,vlan=0,hostfwd=tcp::20409-:22 -net nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -watchdog i6300esb -drive file=/fs/LABEL=KVM/disk0-snb-16313,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk1-snb-16313,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk2-snb-16313,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk3-snb-16313,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk4-snb-16313,media=disk,if=virtio -drive file=/fs/LABEL=KVM/disk5-snb-16313,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-snb-lkp-16313 -serial file:/dev/shm/kboot/serial-snb-lkp-16313 -daemonize -display none -monitor null
[-- Attachment #3: bisect-04bf57606b28bfa283bd118e4ea032151b02f6df-x86_64-randconfig-c05-0718-Kernel-panic---not-syncing:-Fatal-exception-in-interrupt-81850.log --]
[-- Type: application/octet-stream, Size: 30881 bytes --]
[-- Attachment #4: config-3.11.0-rc1-01429-g04bf576 --]
[-- Type: text/plain, Size: 71012 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 3.11.0-rc1 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=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_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_MMU=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=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_ARCH_HAS_CPU_AUTOPROBE=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_X86_64_SMP=y
CONFIG_X86_HT=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_CPU_PROBE_RELEASE=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
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 is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
CONFIG_KERNEL_LZO=y
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_FHANDLE is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_GENERIC_HARDIRQS=y
#
# IRQ subsystem
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_DEBUG=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=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 is not set
#
# RCU Subsystem
#
CONFIG_TREE_PREEMPT_RCU=y
CONFIG_PREEMPT_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_CONTEXT_TRACKING=y
CONFIG_RCU_USER_QS=y
CONFIG_CONTEXT_TRACKING_FORCE=y
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
CONFIG_RCU_FANOUT_EXACT=y
# CONFIG_RCU_FAST_NO_HZ is not set
CONFIG_TREE_RCU_TRACE=y
# CONFIG_RCU_BOOST is not set
# CONFIG_RCU_NOCB_CPU is not set
CONFIG_IKCONFIG=y
CONFIG_LOG_BUF_SHIFT=17
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANTS_PROT_NUMA_PROT_NONE=y
CONFIG_CGROUPS=y
CONFIG_CGROUP_DEBUG=y
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_CPUACCT is not set
CONFIG_RESOURCE_COUNTERS=y
# CONFIG_MEMCG is not set
CONFIG_CGROUP_HUGETLB=y
CONFIG_CGROUP_PERF=y
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
CONFIG_IPC_NS=y
# CONFIG_USER_NS is not set
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_UIDGID_CONVERTED=y
# CONFIG_UIDGID_STRICT_TYPE_CHECKS is not set
# CONFIG_SCHED_AUTOGROUP 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 is not set
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
# CONFIG_RD_LZ4 is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_ANON_INODES=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_EXPERT=y
# CONFIG_UID16 is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PRINTK=y
CONFIG_BUG=y
# CONFIG_PCSPKR_PLATFORM is not set
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
# CONFIG_SHMEM is not set
CONFIG_AIO=y
CONFIG_PCI_QUIRKS=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_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_OPROFILE=y
# CONFIG_OPROFILE_EVENT_MULTIPLEX is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=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_ATTRS=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=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_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_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
#
# GCOV-based kernel profiling
#
CONFIG_GCOV_KERNEL=y
CONFIG_GCOV_PROFILE_ALL=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
# CONFIG_MODULE_UNLOAD is not set
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
CONFIG_MODULE_SIG_ALL=y
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA224 is not set
CONFIG_MODULE_SIG_SHA256=y
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha256"
CONFIG_STOP_MACHINE=y
# CONFIG_BLOCK is not set
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_FREEZER=y
#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
# CONFIG_X86_MPPARSE is not set
# CONFIG_X86_EXTENDED_PLATFORM is not set
# CONFIG_X86_INTEL_LPSS is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
# CONFIG_KVMTOOL_TEST_ENABLE is not set
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_XEN_PRIVILEGED_GUEST is not set
CONFIG_KVM_GUEST=y
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
CONFIG_NO_BOOTMEM=y
# CONFIG_MEMTEST is not set
# 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_PROCESSOR_SELECT=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_HPET_TIMER=y
# CONFIG_DMI is not set
CONFIG_GART_IOMMU=y
# CONFIG_CALGARY_IOMMU is not set
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS=8
CONFIG_SCHED_SMT=y
# CONFIG_SCHED_MC is not set
# 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_I8K=m
# CONFIG_MICROCODE is not set
# CONFIG_MICROCODE_INTEL_EARLY is not set
# CONFIG_MICROCODE_AMD_EARLY is not set
# CONFIG_X86_MSR is not set
CONFIG_X86_CPUID=m
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DIRECT_GBPAGES=y
# CONFIG_NUMA is not set
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=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 is not set
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
CONFIG_HAVE_BOOTMEM_INFO_NODE=y
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG_SPARSE=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=999999
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
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=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_CLEANCACHE is not set
# CONFIG_ZBUD is not set
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK is not set
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
# CONFIG_X86_PAT is not set
CONFIG_ARCH_RANDOM=y
CONFIG_X86_SMAP=y
# CONFIG_EFI is not set
# CONFIG_SECCOMP is not set
CONFIG_CC_STACKPROTECTOR=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
# CONFIG_KEXEC is not set
CONFIG_CRASH_DUMP=y
CONFIG_PHYSICAL_START=0x1000000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
CONFIG_BOOTPARAM_HOTPLUG_CPU0=y
CONFIG_DEBUG_HOTPLUG_CPU0=y
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
#
# Power management and ACPI options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
CONFIG_PM_AUTOSLEEP=y
CONFIG_PM_WAKELOCKS=y
CONFIG_PM_WAKELOCKS_LIMIT=100
CONFIG_PM_WAKELOCKS_GC=y
# CONFIG_PM_RUNTIME is not set
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
# CONFIG_ACPI_VIDEO is not set
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_I2C=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_CUSTOM_DSDT_FILE=""
# CONFIG_ACPI_CUSTOM_DSDT is not set
# CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_HOTPLUG_MEMORY is not set
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_APEI is not set
CONFIG_SFI=y
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=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 is not set
# 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=y
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=m
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
#
# x86 CPU frequency scaling drivers
#
# CONFIG_X86_INTEL_PSTATE is not set
# CONFIG_X86_PCC_CPUFREQ is not set
# CONFIG_X86_ACPI_CPUFREQ is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_P4_CLOCKMOD=y
#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=y
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_MULTIPLE_DRIVERS=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 is not set
CONFIG_PCI_DOMAINS=y
# CONFIG_PCI_CNB20LE_QUIRK is not set
# CONFIG_PCIEPORTBUS is not set
CONFIG_ARCH_SUPPORTS_MSI=y
# CONFIG_PCI_MSI is not set
# 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_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
# CONFIG_PCI_IOAPIC is not set
CONFIG_PCI_LABEL=y
#
# PCI host controller drivers
#
# CONFIG_ISA_DMA_API is not set
CONFIG_AMD_NB=y
CONFIG_PCCARD=y
# CONFIG_PCMCIA is not set
CONFIG_CARDBUS=y
#
# PC-card bridges
#
# CONFIG_YENTA is not set
# CONFIG_RAPIDIO is not set
#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
CONFIG_BINFMT_SCRIPT=m
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
# CONFIG_COREDUMP is not set
CONFIG_IA32_EMULATION=y
CONFIG_IA32_AOUT=y
CONFIG_X86_X32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_KEYS_COMPAT=y
CONFIG_HAVE_TEXT_POKE_SMP=y
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_NET=y
#
# Networking options
#
# CONFIG_PACKET is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_NET_KEY is not set
# CONFIG_INET is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
# CONFIG_NETFILTER is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# 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 is not set
# 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_NET_MPLS_GSO is not set
CONFIG_XPS=y
# CONFIG_NETPRIO_CGROUP is not set
CONFIG_NET_LL_RX_POLL=y
# CONFIG_BPF_JIT is not set
#
# Network testing
#
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_WIRELESS=y
# CONFIG_CFG80211 is not set
# CONFIG_LIB80211 is not set
#
# CFG80211 needs to be enabled for MAC80211
#
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_RFKILL_REGULATOR is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_NFC is not set
CONFIG_HAVE_BPF_JIT=y
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=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_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPI=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
#
# Bus devices
#
# CONFIG_CONNECTOR is not set
CONFIG_MTD=m
CONFIG_MTD_TESTS=m
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_CMDLINE_PARTS is not set
# CONFIG_MTD_AR7_PARTS is not set
#
# User Modules And Translation Layers
#
# CONFIG_MTD_OOPS is not set
#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=m
CONFIG_MTD_JEDECPROBE=m
CONFIG_MTD_GEN_PROBE=m
# CONFIG_MTD_CFI_ADV_OPTIONS is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_CFI_AMDSTD=m
CONFIG_MTD_CFI_STAA=m
CONFIG_MTD_CFI_UTIL=m
CONFIG_MTD_RAM=m
CONFIG_MTD_ROM=m
# CONFIG_MTD_ABSENT is not set
#
# Mapping drivers for chip access
#
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PHYSMAP=m
CONFIG_MTD_PHYSMAP_COMPAT=y
CONFIG_MTD_PHYSMAP_START=0x8000000
CONFIG_MTD_PHYSMAP_LEN=0
CONFIG_MTD_PHYSMAP_BANKWIDTH=2
CONFIG_MTD_SC520CDP=m
CONFIG_MTD_NETSC520=m
CONFIG_MTD_TS5500=m
CONFIG_MTD_AMD76XROM=m
# CONFIG_MTD_ICHXROM is not set
# CONFIG_MTD_ESB2ROM is not set
# CONFIG_MTD_CK804XROM is not set
# CONFIG_MTD_SCB2_FLASH is not set
CONFIG_MTD_NETtel=m
CONFIG_MTD_L440GX=m
# CONFIG_MTD_PCI is not set
# CONFIG_MTD_INTEL_VR_NOR is not set
CONFIG_MTD_PLATRAM=m
CONFIG_MTD_LATCH_ADDR=m
#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_DATAFLASH is not set
# CONFIG_MTD_M25P80 is not set
# CONFIG_MTD_SST25L is not set
CONFIG_MTD_SLRAM=m
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
#
# Disk-On-Chip Device Drivers
#
CONFIG_MTD_DOCG3=m
CONFIG_BCH_CONST_M=14
CONFIG_BCH_CONST_T=4
CONFIG_MTD_NAND_ECC=m
# CONFIG_MTD_NAND_ECC_SMC is not set
CONFIG_MTD_NAND=m
CONFIG_MTD_NAND_BCH=m
CONFIG_MTD_NAND_ECC_BCH=y
# CONFIG_MTD_SM_COMMON is not set
CONFIG_MTD_NAND_DENALI=m
# CONFIG_MTD_NAND_DENALI_PCI is not set
CONFIG_MTD_NAND_IDS=m
# CONFIG_MTD_NAND_RICOH is not set
CONFIG_MTD_NAND_DISKONCHIP=m
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED=y
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0
# CONFIG_MTD_NAND_DISKONCHIP_PROBE_HIGH is not set
# CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE is not set
# CONFIG_MTD_NAND_DOCG4 is not set
# CONFIG_MTD_NAND_CAFE is not set
CONFIG_MTD_NAND_NANDSIM=m
CONFIG_MTD_NAND_PLATFORM=m
# CONFIG_MTD_ONENAND is not set
#
# LPDDR flash memory drivers
#
# CONFIG_MTD_LPDDR is not set
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
CONFIG_MTD_UBI_FASTMAP=y
# CONFIG_MTD_UBI_GLUEBI is not set
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=m
CONFIG_PARPORT_1284=y
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y
#
# Protocols
#
CONFIG_PNPACPI=y
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
CONFIG_DUMMY_IRQ=y
# 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_ATMEL_SSC=y
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
CONFIG_APDS9802ALS=y
CONFIG_ISL29020=m
# CONFIG_SENSORS_BH1770 is not set
CONFIG_SENSORS_APDS990X=m
# CONFIG_HMC6352 is not set
CONFIG_DS1682=m
# CONFIG_VMWARE_BALLOON is not set
# CONFIG_PCH_PHUB is not set
CONFIG_USB_SWITCH_FSA9480=y
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
CONFIG_EEPROM_MAX6875=y
CONFIG_EEPROM_93CX6=y
# 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_INTEL_MEI is not set
# CONFIG_INTEL_MEI_ME is not set
# CONFIG_VMWARE_VMCI is not set
CONFIG_HAVE_IDE=y
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_SCSI_DMA is not set
# CONFIG_SCSI_NETLINK is not set
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_I2O is not set
# CONFIG_MACINTOSH_DRIVERS is not set
# CONFIG_NETDEVICES is not set
# CONFIG_VHOST_NET is not set
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=y
CONFIG_INPUT_SPARSEKMAP=y
CONFIG_INPUT_MATRIXKMAP=m
#
# 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=m
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ADP5520=y
CONFIG_KEYBOARD_ADP5588=m
CONFIG_KEYBOARD_ADP5589=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
CONFIG_KEYBOARD_QT2160=y
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_TCA6416=y
# CONFIG_KEYBOARD_TCA8418 is not set
CONFIG_KEYBOARD_LM8323=y
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
CONFIG_KEYBOARD_MPR121=y
CONFIG_KEYBOARD_NEWTON=y
CONFIG_KEYBOARD_OPENCORES=m
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_KEYBOARD_SUNKBD=y
CONFIG_KEYBOARD_XTKBD=m
CONFIG_KEYBOARD_CROS_EC=m
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
# CONFIG_MOUSE_PS2_SYNAPTICS is not set
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_SERIAL=m
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
CONFIG_MOUSE_VSXXXAA=m
CONFIG_MOUSE_SYNAPTICS_I2C=y
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# 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_HANWANG is not set
# CONFIG_TABLET_USB_KBTAB is not set
# CONFIG_TABLET_USB_WACOM is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_CT82C710=y
CONFIG_SERIO_PARKBD=m
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
CONFIG_SERIO_ALTERA_PS2=y
CONFIG_SERIO_PS2MULT=y
# CONFIG_SERIO_ARC_PS2 is not set
CONFIG_GAMEPORT=y
# CONFIG_GAMEPORT_NS558 is not set
CONFIG_GAMEPORT_L4=y
# CONFIG_GAMEPORT_EMU10K1 is not set
# CONFIG_GAMEPORT_FM801 is not set
#
# Character devices
#
CONFIG_TTY=y
# CONFIG_VT is not set
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# 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_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_DEVKMEM is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
# CONFIG_SERIAL_8250_SHARE_IRQ is not set
CONFIG_SERIAL_8250_DETECT_IRQ=y
# CONFIG_SERIAL_8250_RSA is not set
CONFIG_SERIAL_8250_DW=m
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
CONFIG_SERIAL_MAX310X=y
# CONFIG_SERIAL_MFD_HSU is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_SERIAL_SCCNXP=y
CONFIG_SERIAL_SCCNXP_CONSOLE=y
# CONFIG_SERIAL_TIMBERDALE is not set
CONFIG_SERIAL_ALTERA_JTAGUART=m
CONFIG_SERIAL_ALTERA_UART=y
CONFIG_SERIAL_ALTERA_UART_MAXPORTS=4
CONFIG_SERIAL_ALTERA_UART_BAUDRATE=115200
# CONFIG_SERIAL_ALTERA_UART_CONSOLE is not set
# CONFIG_SERIAL_PCH_UART is not set
CONFIG_SERIAL_ARC=y
# CONFIG_SERIAL_ARC_CONSOLE is not set
CONFIG_SERIAL_ARC_NR_PORTS=1
# CONFIG_SERIAL_RP2 is not set
CONFIG_SERIAL_FSL_LPUART=y
# CONFIG_SERIAL_FSL_LPUART_CONSOLE is not set
# CONFIG_TTY_PRINTK is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
CONFIG_HW_RANDOM_INTEL=y
CONFIG_HW_RANDOM_AMD=y
CONFIG_HW_RANDOM_VIA=y
CONFIG_HW_RANDOM_TPM=m
CONFIG_NVRAM=m
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
# CONFIG_HPET is not set
# CONFIG_HANGCHECK_TIMER is not set
CONFIG_TCG_TPM=m
# CONFIG_TCG_TIS is not set
CONFIG_TCG_TIS_I2C_INFINEON=m
# CONFIG_TCG_NSC is not set
# CONFIG_TCG_ATMEL is not set
# CONFIG_TCG_INFINEON is not set
CONFIG_TELCLOCK=m
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_COMPAT is not set
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=y
#
# Multiplexer I2C Chip support
#
CONFIG_I2C_MUX_PCA9541=m
CONFIG_I2C_MUX_PCA954x=y
# CONFIG_I2C_HELPER_AUTO is not set
CONFIG_I2C_SMBUS=m
#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=y
# CONFIG_I2C_ALGOPCF is not set
# CONFIG_I2C_ALGOPCA is not set
#
# 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 is not set
# 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_EG20T is not set
CONFIG_I2C_OCORES=m
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
CONFIG_I2C_XILINX=y
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT is not set
CONFIG_I2C_PARPORT_LIGHT=m
CONFIG_I2C_TAOS_EVM=m
#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_STUB=m
# 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=y
CONFIG_SPI_MASTER=y
#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
CONFIG_SPI_BITBANG=y
CONFIG_SPI_BUTTERFLY=m
CONFIG_SPI_LM70_LLP=m
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_PXA2XX_PCI is not set
CONFIG_SPI_SC18IS602=y
# CONFIG_SPI_TOPCLIFF_PCH is not set
CONFIG_SPI_XCOMM=m
CONFIG_SPI_XILINX=y
# CONFIG_SPI_DESIGNWARE is not set
#
# SPI Protocol Masters
#
CONFIG_SPI_SPIDEV=m
CONFIG_HSI=y
CONFIG_HSI_BOARDINFO=y
#
# HSI clients
#
CONFIG_HSI_CHAR=y
#
# PPS support
#
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set
#
# PPS clients support
#
CONFIG_PPS_CLIENT_KTIMER=m
CONFIG_PPS_CLIENT_LDISC=y
CONFIG_PPS_CLIENT_PARPORT=m
CONFIG_PPS_CLIENT_GPIO=y
#
# 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_PTP_1588_CLOCK_PCH is not set
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIO_DEVRES=y
# CONFIG_GPIOLIB is not set
CONFIG_W1=y
#
# 1-wire Bus Masters
#
# CONFIG_W1_MASTER_MATROX is not set
CONFIG_W1_MASTER_DS2482=y
CONFIG_W1_MASTER_DS1WM=m
#
# 1-wire Slaves
#
# CONFIG_W1_SLAVE_THERM is not set
# CONFIG_W1_SLAVE_SMEM is not set
CONFIG_W1_SLAVE_DS2408=m
# CONFIG_W1_SLAVE_DS2408_READBACK is not set
# CONFIG_W1_SLAVE_DS2413 is not set
CONFIG_W1_SLAVE_DS2423=m
# CONFIG_W1_SLAVE_DS2431 is not set
# CONFIG_W1_SLAVE_DS2433 is not set
# CONFIG_W1_SLAVE_DS2760 is not set
CONFIG_W1_SLAVE_DS2780=y
CONFIG_W1_SLAVE_DS2781=y
CONFIG_W1_SLAVE_DS28E04=m
CONFIG_W1_SLAVE_BQ27000=y
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_GENERIC_ADC_BATTERY is not set
CONFIG_MAX8925_POWER=y
CONFIG_WM831X_BACKUP=m
CONFIG_WM831X_POWER=m
CONFIG_WM8350_POWER=y
CONFIG_TEST_POWER=m
# CONFIG_BATTERY_88PM860X is not set
CONFIG_BATTERY_DS2780=m
CONFIG_BATTERY_DS2781=y
CONFIG_BATTERY_DS2782=y
# CONFIG_BATTERY_SBS is not set
CONFIG_BATTERY_BQ27x00=m
# CONFIG_BATTERY_BQ27X00_I2C is not set
CONFIG_BATTERY_BQ27X00_PLATFORM=y
CONFIG_BATTERY_DA9030=y
# CONFIG_BATTERY_DA9052 is not set
CONFIG_BATTERY_MAX17040=m
CONFIG_BATTERY_MAX17042=m
CONFIG_CHARGER_MAX8903=y
CONFIG_CHARGER_LP8727=y
# CONFIG_CHARGER_LP8788 is not set
CONFIG_CHARGER_BQ2415X=y
CONFIG_CHARGER_SMB347=m
CONFIG_BATTERY_GOLDFISH=m
CONFIG_POWER_RESET=y
CONFIG_POWER_AVS=y
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
CONFIG_SENSORS_AD7314=m
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
CONFIG_SENSORS_ADCXX=y
# CONFIG_SENSORS_ADM1021 is not set
CONFIG_SENSORS_ADM1025=y
# CONFIG_SENSORS_ADM1026 is not set
CONFIG_SENSORS_ADM1029=y
# CONFIG_SENSORS_ADM1031 is not set
CONFIG_SENSORS_ADM9240=y
CONFIG_SENSORS_ADT7X10=m
# CONFIG_SENSORS_ADT7310 is not set
CONFIG_SENSORS_ADT7410=m
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=y
# CONFIG_SENSORS_ADT7470 is not set
CONFIG_SENSORS_ADT7475=m
# 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_ASB100 is not set
CONFIG_SENSORS_ATXP1=m
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
CONFIG_SENSORS_DA9052_ADC=m
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
CONFIG_SENSORS_F71882FG=y
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=y
CONFIG_SENSORS_G760A=m
CONFIG_SENSORS_G762=m
CONFIG_SENSORS_GL518SM=y
# CONFIG_SENSORS_GL520SM is not set
CONFIG_SENSORS_HIH6130=y
# CONFIG_SENSORS_CORETEMP is not set
CONFIG_SENSORS_IIO_HWMON=m
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
CONFIG_SENSORS_LINEAGE=y
CONFIG_SENSORS_LM63=y
CONFIG_SENSORS_LM70=y
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=y
CONFIG_SENSORS_LM92=y
CONFIG_SENSORS_LM93=y
CONFIG_SENSORS_LTC4151=m
# CONFIG_SENSORS_LTC4215 is not set
CONFIG_SENSORS_LTC4245=m
CONFIG_SENSORS_LTC4261=m
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_MAX1111 is not set
CONFIG_SENSORS_MAX16065=y
CONFIG_SENSORS_MAX1619=y
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=m
CONFIG_SENSORS_MAX6639=y
CONFIG_SENSORS_MAX6642=m
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
CONFIG_SENSORS_MCP3021=m
CONFIG_SENSORS_NCT6775=m
# CONFIG_SENSORS_NTC_THERMISTOR is not set
CONFIG_SENSORS_PC87360=y
CONFIG_SENSORS_PC87427=y
# CONFIG_SENSORS_PCF8591 is not set
CONFIG_PMBUS=y
# CONFIG_SENSORS_PMBUS is not set
CONFIG_SENSORS_ADM1275=m
# CONFIG_SENSORS_LM25066 is not set
# CONFIG_SENSORS_LTC2978 is not set
CONFIG_SENSORS_MAX16064=y
CONFIG_SENSORS_MAX34440=m
CONFIG_SENSORS_MAX8688=m
# CONFIG_SENSORS_UCD9000 is not set
CONFIG_SENSORS_UCD9200=m
# CONFIG_SENSORS_ZL6100 is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SIS5595 is not set
CONFIG_SENSORS_SMM665=y
CONFIG_SENSORS_DME1737=y
CONFIG_SENSORS_EMC1403=m
CONFIG_SENSORS_EMC2103=y
CONFIG_SENSORS_EMC6W201=m
# CONFIG_SENSORS_SMSC47M1 is not set
CONFIG_SENSORS_SMSC47M192=m
# CONFIG_SENSORS_SMSC47B397 is not set
CONFIG_SENSORS_SCH56XX_COMMON=m
# CONFIG_SENSORS_SCH5627 is not set
CONFIG_SENSORS_SCH5636=m
CONFIG_SENSORS_ADS1015=m
# CONFIG_SENSORS_ADS7828 is not set
CONFIG_SENSORS_ADS7871=m
CONFIG_SENSORS_AMC6821=y
CONFIG_SENSORS_INA209=m
CONFIG_SENSORS_INA2XX=m
CONFIG_SENSORS_THMC50=y
CONFIG_SENSORS_TMP102=m
# CONFIG_SENSORS_TMP401 is not set
CONFIG_SENSORS_TMP421=m
CONFIG_SENSORS_VIA_CPUTEMP=m
# CONFIG_SENSORS_VIA686A is not set
CONFIG_SENSORS_VT1211=m
# CONFIG_SENSORS_VT8231 is not set
CONFIG_SENSORS_W83781D=y
CONFIG_SENSORS_W83791D=y
CONFIG_SENSORS_W83792D=y
# CONFIG_SENSORS_W83793 is not set
CONFIG_SENSORS_W83795=m
# CONFIG_SENSORS_W83795_FANCTRL is not set
CONFIG_SENSORS_W83L785TS=y
CONFIG_SENSORS_W83L786NG=y
# CONFIG_SENSORS_W83627HF is not set
CONFIG_SENSORS_W83627EHF=m
# CONFIG_SENSORS_WM831X is not set
# CONFIG_SENSORS_WM8350 is not set
CONFIG_SENSORS_APPLESMC=y
# CONFIG_SENSORS_MC13783_ADC 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_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_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_USER_SPACE=y
CONFIG_CPU_THERMAL=y
CONFIG_THERMAL_EMULATION=y
CONFIG_INTEL_POWERCLAMP=m
CONFIG_X86_PKG_TEMP_THERMAL=m
#
# Texas Instruments thermal drivers
#
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
CONFIG_DA9052_WATCHDOG=m
# CONFIG_WM831X_WATCHDOG is not set
CONFIG_WM8350_WATCHDOG=m
CONFIG_RETU_WATCHDOG=m
CONFIG_ACQUIRE_WDT=y
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
CONFIG_F71808E_WDT=m
# CONFIG_SP5100_TCO is not set
CONFIG_SC520_WDT=m
CONFIG_SBC_FITPC2_WATCHDOG=m
# CONFIG_EUROTECH_WDT is not set
CONFIG_IB700_WDT=y
# CONFIG_IBMASR is not set
CONFIG_WAFER_WDT=y
# 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=m
# CONFIG_HP_WATCHDOG is not set
CONFIG_SC1200_WDT=y
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
CONFIG_60XX_WDT=m
# CONFIG_SBC8360_WDT is not set
CONFIG_CPU5_WDT=m
# CONFIG_SMSC_SCH311X_WDT is not set
CONFIG_SMSC37B787_WDT=m
# CONFIG_VIA_WDT is not set
CONFIG_W83627HF_WDT=y
CONFIG_W83697HF_WDT=y
# CONFIG_W83697UG_WDT is not set
CONFIG_W83877F_WDT=y
# CONFIG_W83977F_WDT is not set
# CONFIG_MACHZ_WDT is not set
CONFIG_SBC_EPX_C3_WATCHDOG=y
#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
CONFIG_SSB=m
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
CONFIG_SSB_SDIOHOST_POSSIBLE=y
# CONFIG_SSB_SDIOHOST is not set
CONFIG_SSB_SILENT=y
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
# CONFIG_SSB_DRIVER_PCICORE is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_CS5535 is not set
# CONFIG_MFD_AS3711 is not set
CONFIG_PMIC_ADP5520=y
CONFIG_MFD_CROS_EC=m
CONFIG_MFD_CROS_EC_I2C=m
CONFIG_MFD_CROS_EC_SPI=m
CONFIG_PMIC_DA903X=y
CONFIG_PMIC_DA9052=y
# CONFIG_MFD_DA9052_SPI is not set
CONFIG_MFD_DA9052_I2C=y
# CONFIG_MFD_DA9055 is not set
CONFIG_MFD_MC13783=y
CONFIG_MFD_MC13XXX=y
CONFIG_MFD_MC13XXX_SPI=y
CONFIG_MFD_MC13XXX_I2C=m
# CONFIG_HTC_PASIC3 is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
CONFIG_MFD_88PM800=m
CONFIG_MFD_88PM805=m
CONFIG_MFD_88PM860X=y
# CONFIG_MFD_MAX77686 is not set
CONFIG_MFD_MAX77693=y
# CONFIG_MFD_MAX8907 is not set
CONFIG_MFD_MAX8925=y
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_EZX_PCAP is not set
CONFIG_MFD_RETU=m
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
CONFIG_MFD_RC5T583=y
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SMSC is not set
CONFIG_ABX500_CORE=y
# CONFIG_AB3100_CORE is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_SYSCON is not set
CONFIG_MFD_TI_AM335X_TSCADC=y
CONFIG_MFD_LP8788=y
CONFIG_MFD_PALMAS=y
CONFIG_TPS6105X=y
CONFIG_TPS6507X=m
# CONFIG_MFD_TPS65090 is not set
CONFIG_MFD_TPS65217=m
CONFIG_MFD_TPS6586X=y
CONFIG_MFD_TPS80031=y
# CONFIG_TWL4030_CORE 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_VX855 is not set
CONFIG_MFD_ARIZONA=y
# CONFIG_MFD_ARIZONA_I2C is not set
CONFIG_MFD_ARIZONA_SPI=m
CONFIG_MFD_WM5102=y
CONFIG_MFD_WM5110=y
CONFIG_MFD_WM8997=y
# CONFIG_MFD_WM8400 is not set
CONFIG_MFD_WM831X=y
# CONFIG_MFD_WM831X_I2C is not set
CONFIG_MFD_WM831X_SPI=y
CONFIG_MFD_WM8350=y
CONFIG_MFD_WM8350_I2C=y
# CONFIG_MFD_WM8994 is not set
CONFIG_REGULATOR=y
CONFIG_REGULATOR_DEBUG=y
CONFIG_REGULATOR_DUMMY=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
CONFIG_REGULATOR_USERSPACE_CONSUMER=m
# CONFIG_REGULATOR_AD5398 is not set
CONFIG_REGULATOR_DA903X=m
CONFIG_REGULATOR_DA9052=y
# CONFIG_REGULATOR_FAN53555 is not set
CONFIG_REGULATOR_MC13XXX_CORE=y
CONFIG_REGULATOR_MC13783=y
CONFIG_REGULATOR_MC13892=y
CONFIG_REGULATOR_ISL6271A=y
CONFIG_REGULATOR_88PM8607=y
CONFIG_REGULATOR_MAX1586=y
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8925 is not set
CONFIG_REGULATOR_MAX8952=y
CONFIG_REGULATOR_MAX8973=y
# CONFIG_REGULATOR_MAX77693 is not set
CONFIG_REGULATOR_LP3971=y
CONFIG_REGULATOR_LP3972=y
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
CONFIG_REGULATOR_LP8788=y
CONFIG_REGULATOR_RC5T583=y
CONFIG_REGULATOR_PALMAS=m
# CONFIG_REGULATOR_TPS51632 is not set
CONFIG_REGULATOR_TPS6105X=m
CONFIG_REGULATOR_TPS62360=y
# CONFIG_REGULATOR_TPS65023 is not set
CONFIG_REGULATOR_TPS6507X=y
# CONFIG_REGULATOR_TPS65217 is not set
# CONFIG_REGULATOR_TPS6524X is not set
CONFIG_REGULATOR_TPS6586X=y
CONFIG_REGULATOR_TPS80031=y
CONFIG_REGULATOR_WM831X=m
CONFIG_REGULATOR_WM8350=m
CONFIG_MEDIA_SUPPORT=y
#
# Multimedia core support
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_RC_SUPPORT is not set
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2=y
# CONFIG_VIDEO_ADV_DEBUG is not set
CONFIG_VIDEO_FIXED_MINOR_RANGES=y
CONFIG_VIDEO_V4L2_INT_DEVICE=y
CONFIG_DVB_CORE=y
# CONFIG_TTPCI_EEPROM is not set
CONFIG_DVB_MAX_ADAPTERS=8
CONFIG_DVB_DYNAMIC_MINORS=y
#
# Media drivers
#
# CONFIG_MEDIA_PCI_SUPPORT is not set
#
# Supported MMC/SDIO adapters
#
# CONFIG_SMS_SDIO_DRV is not set
#
# Media ancillary drivers (tuners, sensors, i2c, frontends)
#
# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set
CONFIG_MEDIA_ATTACH=y
#
# Encoders, decoders, sensors and other helper chips
#
#
# Audio decoders, processors and mixers
#
CONFIG_VIDEO_TVAUDIO=m
CONFIG_VIDEO_TDA7432=m
CONFIG_VIDEO_TDA9840=y
# CONFIG_VIDEO_TEA6415C is not set
# CONFIG_VIDEO_TEA6420 is not set
# CONFIG_VIDEO_MSP3400 is not set
CONFIG_VIDEO_CS5345=m
CONFIG_VIDEO_CS53L32A=m
CONFIG_VIDEO_TLV320AIC23B=y
CONFIG_VIDEO_UDA1342=y
# CONFIG_VIDEO_WM8775 is not set
CONFIG_VIDEO_WM8739=m
# CONFIG_VIDEO_VP27SMPX is not set
CONFIG_VIDEO_SONY_BTF_MPX=m
#
# RDS decoders
#
# CONFIG_VIDEO_SAA6588 is not set
#
# Video decoders
#
CONFIG_VIDEO_ADV7180=y
CONFIG_VIDEO_ADV7183=y
# CONFIG_VIDEO_BT819 is not set
# CONFIG_VIDEO_BT856 is not set
CONFIG_VIDEO_BT866=m
# CONFIG_VIDEO_KS0127 is not set
CONFIG_VIDEO_ML86V7667=m
CONFIG_VIDEO_SAA7110=m
CONFIG_VIDEO_SAA711X=y
CONFIG_VIDEO_SAA7191=y
# CONFIG_VIDEO_TVP514X is not set
# CONFIG_VIDEO_TVP5150 is not set
# CONFIG_VIDEO_TVP7002 is not set
CONFIG_VIDEO_TW2804=m
# CONFIG_VIDEO_TW9903 is not set
CONFIG_VIDEO_TW9906=m
CONFIG_VIDEO_VPX3220=m
#
# Video and audio decoders
#
CONFIG_VIDEO_SAA717X=m
CONFIG_VIDEO_CX25840=m
#
# Video encoders
#
CONFIG_VIDEO_SAA7127=y
CONFIG_VIDEO_SAA7185=m
CONFIG_VIDEO_ADV7170=m
CONFIG_VIDEO_ADV7175=y
# CONFIG_VIDEO_ADV7343 is not set
# CONFIG_VIDEO_ADV7393 is not set
CONFIG_VIDEO_AK881X=y
CONFIG_VIDEO_THS8200=m
#
# Camera sensor devices
#
#
# Flash devices
#
#
# Video improvement chips
#
# CONFIG_VIDEO_UPD64031A is not set
# CONFIG_VIDEO_UPD64083 is not set
#
# Miscelaneous helper chips
#
CONFIG_VIDEO_THS7303=y
# CONFIG_VIDEO_M52790 is not set
#
# Sensors used on soc_camera driver
#
CONFIG_MEDIA_TUNER=y
#
# Customize TV tuners
#
CONFIG_MEDIA_TUNER_SIMPLE=y
# CONFIG_MEDIA_TUNER_TDA8290 is not set
CONFIG_MEDIA_TUNER_TDA827X=y
CONFIG_MEDIA_TUNER_TDA18271=m
CONFIG_MEDIA_TUNER_TDA9887=y
CONFIG_MEDIA_TUNER_TEA5761=m
CONFIG_MEDIA_TUNER_TEA5767=m
CONFIG_MEDIA_TUNER_MT20XX=y
CONFIG_MEDIA_TUNER_MT2060=y
CONFIG_MEDIA_TUNER_MT2063=m
CONFIG_MEDIA_TUNER_MT2266=y
CONFIG_MEDIA_TUNER_MT2131=y
# CONFIG_MEDIA_TUNER_QT1010 is not set
CONFIG_MEDIA_TUNER_XC2028=m
CONFIG_MEDIA_TUNER_XC5000=m
CONFIG_MEDIA_TUNER_XC4000=y
CONFIG_MEDIA_TUNER_MXL5005S=y
# CONFIG_MEDIA_TUNER_MXL5007T is not set
CONFIG_MEDIA_TUNER_MC44S803=y
CONFIG_MEDIA_TUNER_MAX2165=m
CONFIG_MEDIA_TUNER_TDA18218=m
# CONFIG_MEDIA_TUNER_FC0011 is not set
# CONFIG_MEDIA_TUNER_FC0012 is not set
CONFIG_MEDIA_TUNER_FC0013=m
CONFIG_MEDIA_TUNER_TDA18212=y
# CONFIG_MEDIA_TUNER_E4000 is not set
CONFIG_MEDIA_TUNER_FC2580=y
CONFIG_MEDIA_TUNER_TUA9001=y
CONFIG_MEDIA_TUNER_IT913X=m
# CONFIG_MEDIA_TUNER_R820T is not set
#
# Customise DVB Frontends
#
#
# Multistandard (satellite) frontends
#
CONFIG_DVB_STB0899=y
# CONFIG_DVB_STB6100 is not set
CONFIG_DVB_STV090x=m
CONFIG_DVB_STV6110x=y
#
# Multistandard (cable + terrestrial) frontends
#
CONFIG_DVB_DRXK=m
CONFIG_DVB_TDA18271C2DD=m
#
# DVB-S (satellite) frontends
#
# CONFIG_DVB_CX24110 is not set
# CONFIG_DVB_CX24123 is not set
CONFIG_DVB_MT312=m
CONFIG_DVB_ZL10036=m
# CONFIG_DVB_ZL10039 is not set
# CONFIG_DVB_S5H1420 is not set
CONFIG_DVB_STV0288=m
CONFIG_DVB_STB6000=y
CONFIG_DVB_STV0299=y
CONFIG_DVB_STV6110=m
CONFIG_DVB_STV0900=m
# CONFIG_DVB_TDA8083 is not set
CONFIG_DVB_TDA10086=m
# CONFIG_DVB_TDA8261 is not set
CONFIG_DVB_VES1X93=y
CONFIG_DVB_TUNER_ITD1000=m
CONFIG_DVB_TUNER_CX24113=y
# CONFIG_DVB_TDA826X is not set
CONFIG_DVB_TUA6100=m
CONFIG_DVB_CX24116=m
# CONFIG_DVB_SI21XX is not set
# CONFIG_DVB_TS2020 is not set
# CONFIG_DVB_DS3000 is not set
# CONFIG_DVB_MB86A16 is not set
CONFIG_DVB_TDA10071=y
#
# DVB-T (terrestrial) frontends
#
CONFIG_DVB_SP8870=m
CONFIG_DVB_SP887X=y
CONFIG_DVB_CX22700=y
# CONFIG_DVB_CX22702 is not set
# CONFIG_DVB_S5H1432 is not set
CONFIG_DVB_DRXD=y
CONFIG_DVB_L64781=m
CONFIG_DVB_TDA1004X=m
# CONFIG_DVB_NXT6000 is not set
# CONFIG_DVB_MT352 is not set
# CONFIG_DVB_ZL10353 is not set
CONFIG_DVB_DIB3000MB=m
# CONFIG_DVB_DIB3000MC is not set
# CONFIG_DVB_DIB7000M is not set
CONFIG_DVB_DIB7000P=m
# CONFIG_DVB_DIB9000 is not set
CONFIG_DVB_TDA10048=y
CONFIG_DVB_AF9013=y
CONFIG_DVB_EC100=y
# CONFIG_DVB_HD29L2 is not set
CONFIG_DVB_STV0367=m
CONFIG_DVB_CXD2820R=m
CONFIG_DVB_RTL2830=m
CONFIG_DVB_RTL2832=m
#
# DVB-C (cable) frontends
#
CONFIG_DVB_VES1820=y
CONFIG_DVB_TDA10021=m
CONFIG_DVB_TDA10023=m
CONFIG_DVB_STV0297=m
#
# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
#
CONFIG_DVB_NXT200X=y
CONFIG_DVB_OR51211=y
CONFIG_DVB_OR51132=m
CONFIG_DVB_BCM3510=m
CONFIG_DVB_LGDT330X=m
CONFIG_DVB_LGDT3305=m
# CONFIG_DVB_LG2160 is not set
CONFIG_DVB_S5H1409=y
CONFIG_DVB_AU8522=m
CONFIG_DVB_AU8522_DTV=m
CONFIG_DVB_AU8522_V4L=m
# CONFIG_DVB_S5H1411 is not set
#
# ISDB-T (terrestrial) frontends
#
CONFIG_DVB_S921=m
CONFIG_DVB_DIB8000=y
# CONFIG_DVB_MB86A20S is not set
#
# Digital terrestrial only tuners/PLL
#
# CONFIG_DVB_PLL is not set
# CONFIG_DVB_TUNER_DIB0070 is not set
# CONFIG_DVB_TUNER_DIB0090 is not set
#
# SEC control devices for DVB-S
#
CONFIG_DVB_LNBP21=m
CONFIG_DVB_LNBP22=m
CONFIG_DVB_ISL6405=m
CONFIG_DVB_ISL6421=y
# CONFIG_DVB_ISL6423 is not set
# CONFIG_DVB_A8293 is not set
# CONFIG_DVB_LGS8GL5 is not set
CONFIG_DVB_LGS8GXX=m
CONFIG_DVB_ATBM8830=m
CONFIG_DVB_TDA665x=m
# CONFIG_DVB_IX2505V is not set
CONFIG_DVB_IT913X_FE=m
CONFIG_DVB_M88RS2000=y
CONFIG_DVB_AF9033=m
#
# Tools to develop new frontends
#
CONFIG_DVB_DUMMY_FE=m
#
# Graphics support
#
# CONFIG_AGP is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_NOUVEAU is not set
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE 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_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_HDMI=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=m
CONFIG_FB_CFB_COPYAREA=m
CONFIG_FB_CFB_IMAGEBLIT=m
# 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=y
# CONFIG_FB_BOTH_ENDIAN is not set
CONFIG_FB_BIG_ENDIAN=y
# CONFIG_FB_LITTLE_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_HECUBA=m
# 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=y
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_VESA is not set
CONFIG_FB_N411=m
CONFIG_FB_HGA=m
# 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_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_TMIO is not set
CONFIG_FB_GOLDFISH=m
CONFIG_FB_VIRTUAL=y
CONFIG_FB_METRONOME=m
# CONFIG_FB_MB862XX is not set
CONFIG_FB_BROADSHEET=m
CONFIG_FB_AUO_K190X=y
# CONFIG_FB_AUO_K1900 is not set
CONFIG_FB_AUO_K1901=y
# CONFIG_EXYNOS_VIDEO 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_PWM=m
# CONFIG_BACKLIGHT_DA903X is not set
CONFIG_BACKLIGHT_DA9052=m
CONFIG_BACKLIGHT_MAX8925=y
# CONFIG_BACKLIGHT_APPLE is not set
CONFIG_BACKLIGHT_SAHARA=y
CONFIG_BACKLIGHT_WM831X=y
# CONFIG_BACKLIGHT_ADP5520 is not set
CONFIG_BACKLIGHT_ADP8860=m
CONFIG_BACKLIGHT_ADP8870=m
CONFIG_BACKLIGHT_88PM860X=m
# CONFIG_BACKLIGHT_LM3630 is not set
# CONFIG_BACKLIGHT_LM3639 is not set
CONFIG_BACKLIGHT_LP855X=m
CONFIG_BACKLIGHT_LP8788=m
CONFIG_BACKLIGHT_TPS65217=m
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
# CONFIG_SOUND_OSS_CORE_PRECLAIM is not set
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=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=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_DMA_SGBUF=y
CONFIG_SND_RAWMIDI_SEQ=m
# 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
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 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_CS5535AUDIO 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_HDA_INTEL 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_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
# CONFIG_SND_SPI 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=y
CONFIG_HID_GENERIC=y
#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
CONFIG_HID_ACRUX=m
CONFIG_HID_ACRUX_FF=y
CONFIG_HID_APPLE=y
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=m
CONFIG_HID_CHICONY=m
CONFIG_HID_PRODIKEYS=m
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
CONFIG_DRAGONRISE_FF=y
# CONFIG_HID_EMS_FF is not set
CONFIG_HID_ELECOM=m
CONFIG_HID_EZKEY=m
# CONFIG_HID_KEYTOUCH is not set
CONFIG_HID_KYE=m
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
CONFIG_HID_GYRATION=m
CONFIG_HID_ICADE=m
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LCPOWER=m
CONFIG_HID_LOGITECH=m
# CONFIG_HID_LOGITECH_DJ is not set
CONFIG_LOGITECH_FF=y
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=y
CONFIG_HID_MONTEREY=m
CONFIG_HID_MULTITOUCH=m
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=y
# CONFIG_HID_PICOLCD_FB is not set
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LEDS=y
CONFIG_HID_PRIMAX=y
# CONFIG_HID_SAITEK is not set
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SPEEDLINK=y
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
CONFIG_HID_GREENASIA=y
# 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=m
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_ZEROPLUS is not set
CONFIG_HID_ZYDACRON=y
CONFIG_HID_SENSOR_HUB=m
#
# I2C HID support
#
CONFIG_I2C_HID=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
# CONFIG_USB is not set
#
# USB port drivers
#
# CONFIG_USB_PHY is not set
# CONFIG_USB_GADGET is not set
# CONFIG_UWB is not set
CONFIG_MMC=y
CONFIG_MMC_DEBUG=y
CONFIG_MMC_UNSAFE_RESUME=y
CONFIG_MMC_CLKGATE=y
#
# MMC/SD/SDIO Card Drivers
#
# CONFIG_SDIO_UART is not set
CONFIG_MMC_TEST=y
#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=m
# CONFIG_MMC_SDHCI_PCI is not set
# CONFIG_MMC_SDHCI_ACPI is not set
CONFIG_MMC_SDHCI_PLTFM=m
# CONFIG_MMC_TIFM_SD is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
CONFIG_MEMSTICK=m
CONFIG_MEMSTICK_DEBUG=y
#
# MemoryStick drivers
#
CONFIG_MEMSTICK_UNSAFE_RESUME=y
#
# MemoryStick Host Controller Drivers
#
# CONFIG_MEMSTICK_TIFM_MS is not set
# CONFIG_MEMSTICK_JMICRON_38X is not set
# CONFIG_MEMSTICK_R592 is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
#
# LED drivers
#
CONFIG_LEDS_88PM860X=y
CONFIG_LEDS_LM3530=m
CONFIG_LEDS_LM3642=m
CONFIG_LEDS_PCA9532=y
# CONFIG_LEDS_LP3944 is not set
CONFIG_LEDS_LP55XX_COMMON=y
# CONFIG_LEDS_LP5521 is not set
CONFIG_LEDS_LP5523=m
CONFIG_LEDS_LP5562=y
# CONFIG_LEDS_LP8788 is not set
# CONFIG_LEDS_PCA955X is not set
CONFIG_LEDS_PCA9633=m
# CONFIG_LEDS_WM831X_STATUS is not set
CONFIG_LEDS_WM8350=m
CONFIG_LEDS_DA903X=m
CONFIG_LEDS_DA9052=m
CONFIG_LEDS_DAC124S085=m
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_REGULATOR is not set
CONFIG_LEDS_BD2802=m
# CONFIG_LEDS_ADP5520 is not set
# CONFIG_LEDS_MC13783 is not set
CONFIG_LEDS_TCA6507=m
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_OT200 is not set
# CONFIG_LEDS_BLINKM is not set
#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_ONESHOT=m
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_BACKLIGHT=y
CONFIG_LEDS_TRIGGER_CPU=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=y
CONFIG_LEDS_TRIGGER_CAMERA=y
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_DECODE_MCE=m
CONFIG_EDAC_MCE_INJ=m
CONFIG_EDAC_MM_EDAC=y
# CONFIG_EDAC_AMD64 is not set
# CONFIG_EDAC_E752X is not set
# CONFIG_EDAC_I82975X is not set
# CONFIG_EDAC_I3000 is not set
# CONFIG_EDAC_I3200 is not set
# CONFIG_EDAC_X38 is not set
# CONFIG_EDAC_I5400 is not set
# CONFIG_EDAC_I7CORE is not set
# CONFIG_EDAC_I5000 is not set
# CONFIG_EDAC_I5100 is not set
# CONFIG_EDAC_I7300 is not set
CONFIG_RTC_LIB=y
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set
CONFIG_AUXDISPLAY=y
CONFIG_KS0108=m
CONFIG_KS0108_PORT=0x378
CONFIG_KS0108_DELAY=2
# CONFIG_CFAG12864B is not set
CONFIG_UIO=y
# CONFIG_UIO_CIF is not set
CONFIG_UIO_PDRV=m
CONFIG_UIO_PDRV_GENIRQ=y
# CONFIG_UIO_DMEM_GENIRQ is not set
# CONFIG_UIO_AEC is not set
# CONFIG_UIO_SERCOS3 is not set
# CONFIG_UIO_PCI_GENERIC is not set
# CONFIG_UIO_NETX 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_HYPERV is not set
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACERHDF is not set
# CONFIG_ASUS_LAPTOP is not set
CONFIG_DELL_LAPTOP=m
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_THINKPAD_ACPI is not set
CONFIG_SENSORS_HDAPS=y
# CONFIG_INTEL_MENLOW is not set
# CONFIG_ACPI_WMI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_IBM_RTL is not set
# CONFIG_XO15_EBOOK is not set
# CONFIG_SAMSUNG_LAPTOP is not set
CONFIG_SAMSUNG_Q10=m
# CONFIG_APPLE_GMUX is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_PVPANIC is not set
#
# Hardware Spinlock drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_CLKBLD_I8253=y
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_SUPPORT=y
# CONFIG_AMD_IOMMU is not set
#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
# CONFIG_PM_DEVFREQ is not set
CONFIG_EXTCON=m
#
# Extcon Device Drivers
#
# CONFIG_EXTCON_ADC_JACK is not set
# CONFIG_EXTCON_MAX77693 is not set
CONFIG_EXTCON_PALMAS=m
CONFIG_MEMORY=y
CONFIG_IIO=m
CONFIG_IIO_BUFFER=y
CONFIG_IIO_BUFFER_CB=y
CONFIG_IIO_KFIFO_BUF=m
CONFIG_IIO_TRIGGERED_BUFFER=m
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
#
# Accelerometers
#
# CONFIG_HID_SENSOR_ACCEL_3D is not set
CONFIG_KXSD9=m
#
# Analog to digital converters
#
CONFIG_AD_SIGMA_DELTA=m
CONFIG_AD7266=m
# CONFIG_AD7298 is not set
CONFIG_AD7923=m
CONFIG_AD7791=m
CONFIG_AD7793=m
# CONFIG_AD7476 is not set
# CONFIG_AD7887 is not set
CONFIG_LP8788_ADC=y
CONFIG_MAX1363=m
CONFIG_MCP320X=m
CONFIG_TI_ADC081C=m
CONFIG_TI_AM335X_ADC=m
#
# Amplifiers
#
CONFIG_AD8366=m
#
# Hid Sensor IIO Common
#
CONFIG_HID_SENSOR_IIO_COMMON=m
CONFIG_HID_SENSOR_IIO_TRIGGER=m
CONFIG_HID_SENSOR_ENUM_BASE_QUIRKS=y
#
# Digital to analog converters
#
CONFIG_AD5064=m
CONFIG_AD5360=m
CONFIG_AD5380=m
# CONFIG_AD5421 is not set
CONFIG_AD5624R_SPI=m
CONFIG_AD5446=m
CONFIG_AD5449=m
# CONFIG_AD5504 is not set
CONFIG_AD5755=m
CONFIG_AD5764=m
CONFIG_AD5791=m
CONFIG_AD5686=m
CONFIG_AD7303=m
# CONFIG_MAX517 is not set
CONFIG_MCP4725=m
#
# 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 is not set
# CONFIG_ADXRS450 is not set
# CONFIG_HID_SENSOR_GYRO_3D is not set
# CONFIG_ITG3200 is not set
#
# Inertial measurement units
#
CONFIG_ADIS16400=m
# CONFIG_ADIS16480 is not set
CONFIG_IIO_ADIS_LIB=m
CONFIG_IIO_ADIS_LIB_BUFFER=y
#
# Light sensors
#
CONFIG_ADJD_S311=m
CONFIG_SENSORS_TSL2563=m
CONFIG_VCNL4000=m
# CONFIG_HID_SENSOR_ALS is not set
#
# Magnetometer sensors
#
CONFIG_HID_SENSOR_MAGNETOMETER_3D=m
#
# Triggers - standalone
#
CONFIG_IIO_INTERRUPT_TRIGGER=m
#
# Pressure Sensors
#
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
CONFIG_PWM=y
CONFIG_IPACK_BUS=y
# CONFIG_BOARD_TPCI200 is not set
# CONFIG_SERIAL_IPOCTAL is not set
CONFIG_RESET_CONTROLLER=y
# CONFIG_FMC is not set
#
# Firmware Drivers
#
CONFIG_EDD=y
CONFIG_EDD_OFF=y
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DELL_RBU=m
CONFIG_DCDBAS=y
CONFIG_ISCSI_IBFT_FIND=y
# CONFIG_GOOGLE_FIRMWARE is not set
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_FILE_LOCKING is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QUOTA_DEBUG=y
CONFIG_QUOTA_TREE=m
CONFIG_QFMT_V1=y
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_QUOTACTL_COMPAT=y
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
#
# Caches
#
CONFIG_FSCACHE=m
CONFIG_FSCACHE_DEBUG=y
#
# Pseudo filesystems
#
# CONFIG_PROC_FS is not set
# CONFIG_SYSFS is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
# CONFIG_CONFIGFS_FS is not set
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=y
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=y
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
# CONFIG_NLS_CODEPAGE_861 is not set
CONFIG_NLS_CODEPAGE_862=y
CONFIG_NLS_CODEPAGE_863=m
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=y
CONFIG_NLS_CODEPAGE_936=y
# CONFIG_NLS_CODEPAGE_950 is not set
CONFIG_NLS_CODEPAGE_932=y
# CONFIG_NLS_CODEPAGE_949 is not set
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=y
# CONFIG_NLS_CODEPAGE_1250 is not set
CONFIG_NLS_CODEPAGE_1251=m
# CONFIG_NLS_ASCII is not set
# CONFIG_NLS_ISO8859_1 is not set
CONFIG_NLS_ISO8859_2=m
# CONFIG_NLS_ISO8859_3 is not set
CONFIG_NLS_ISO8859_4=y
CONFIG_NLS_ISO8859_5=y
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=y
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_MAC_ROMAN=m
# CONFIG_NLS_MAC_CELTIC is not set
CONFIG_NLS_MAC_CENTEURO=m
CONFIG_NLS_MAC_CROATIAN=y
# 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 is not set
CONFIG_NLS_MAC_TURKISH=y
# CONFIG_NLS_UTF8 is not set
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_DEFAULT_MESSAGE_LOGLEVEL=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=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_WANT_PAGE_DEBUG_FLAGS=y
CONFIG_PAGE_GUARD=y
CONFIG_DEBUG_OBJECTS=y
# CONFIG_DEBUG_OBJECTS_SELFTEST is not set
# CONFIG_DEBUG_OBJECTS_FREE is not set
CONFIG_DEBUG_OBJECTS_TIMERS=y
CONFIG_DEBUG_OBJECTS_WORK=y
# CONFIG_DEBUG_OBJECTS_RCU_HEAD is not set
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
# CONFIG_DEBUG_SLAB is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_VM_RB=y
CONFIG_DEBUG_VIRTUAL=y
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_MEMORY_NOTIFIER_ERROR_INJECT is not set
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_HAVE_ARCH_KMEMCHECK=y
CONFIG_DEBUG_SHIRQ=y
#
# 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_DEBUG_PREEMPT is not set
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
CONFIG_RT_MUTEX_TESTER=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_LOCK_ALLOC=y
# CONFIG_PROVE_LOCKING is not set
CONFIG_LOCKDEP=y
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_WRITECOUNT=y
# CONFIG_DEBUG_LIST is not set
CONFIG_DEBUG_SG=y
CONFIG_DEBUG_NOTIFIERS=y
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
CONFIG_PROVE_RCU_DELAY=y
CONFIG_SPARSE_RCU_POINTER=y
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
# CONFIG_RCU_CPU_STALL_VERBOSE is not set
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_RCU_TRACE=y
CONFIG_NOTIFIER_ERROR_INJECTION=y
CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
CONFIG_PM_NOTIFIER_ERROR_INJECT=m
# CONFIG_FAULT_INJECTION is not set
CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS=y
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_FUNCTION_TRACE_MCOUNT_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 is not set
CONFIG_TRACER_SNAPSHOT=y
CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
CONFIG_TRACE_BRANCH_PROFILING=y
# CONFIG_BRANCH_PROFILE_NONE is not set
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
CONFIG_PROFILE_ALL_BRANCHES=y
CONFIG_TRACING_BRANCHES=y
CONFIG_BRANCH_TRACER=y
# CONFIG_STACK_TRACER is not set
# CONFIG_UPROBE_EVENT is not set
# CONFIG_PROBE_EVENTS is not set
# CONFIG_DYNAMIC_FTRACE is not set
# CONFIG_FUNCTION_PROFILER is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_MMIOTRACE is not set
CONFIG_RING_BUFFER_BENCHMARK=y
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
#
# Runtime Testing
#
CONFIG_TEST_LIST_SORT=y
# CONFIG_BACKTRACE_SELF_TEST is not set
CONFIG_RBTREE_TEST=m
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
CONFIG_TEST_KSTRTOX=m
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_BUILD_DOCSRC is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
# CONFIG_STRICT_DEVMEM is not set
CONFIG_X86_VERBOSE_BOOTUP=y
# CONFIG_EARLY_PRINTK is not set
# CONFIG_X86_PTDUMP is not set
# CONFIG_DEBUG_RODATA is not set
# CONFIG_DEBUG_SET_MODULE_RONX is not set
CONFIG_DEBUG_NX_TEST=m
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_DEBUG is not set
CONFIG_IOMMU_STRESS=y
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
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 is not set
CONFIG_IO_DELAY_0XED=y
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=1
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
# CONFIG_OPTIMIZE_INLINING is not set
CONFIG_DEBUG_NMI_SELFTEST=y
# CONFIG_X86_DEBUG_STATIC_CPU_HAS is not set
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_TRUSTED_KEYS is not set
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITYFS=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
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_PCOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_PCRYPT=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_CRYPTD=y
# CONFIG_CRYPTO_AUTHENC is not set
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_ABLK_HELPER_X86=y
CONFIG_CRYPTO_GLUE_HELPER_X86=y
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_SEQIV=y
#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_LRW=y
# CONFIG_CRYPTO_PCBC is not set
CONFIG_CRYPTO_XTS=y
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
CONFIG_CRYPTO_VMAC=y
#
# Digest
#
CONFIG_CRYPTO_CRC32C=m
CONFIG_CRYPTO_CRC32C_INTEL=y
CONFIG_CRYPTO_CRC32=m
# CONFIG_CRYPTO_CRC32_PCLMUL is not set
CONFIG_CRYPTO_CRCT10DIF=m
CONFIG_CRYPTO_CRCT10DIF_PCLMUL=m
CONFIG_CRYPTO_GHASH=m
CONFIG_CRYPTO_MD4=m
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
CONFIG_CRYPTO_RMD128=y
CONFIG_CRYPTO_RMD160=y
# CONFIG_CRYPTO_RMD256 is not set
CONFIG_CRYPTO_RMD320=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA1_SSSE3=y
CONFIG_CRYPTO_SHA256_SSSE3=y
CONFIG_CRYPTO_SHA512_SSSE3=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_TGR192=m
# 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=m
CONFIG_CRYPTO_AES_NI_INTEL=m
CONFIG_CRYPTO_ANUBIS=y
# CONFIG_CRYPTO_ARC4 is not set
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_BLOWFISH_COMMON=y
CONFIG_CRYPTO_BLOWFISH_X86_64=y
# CONFIG_CRYPTO_CAMELLIA is not set
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=y
CONFIG_CRYPTO_CAST5=y
CONFIG_CRYPTO_CAST5_AVX_X86_64=m
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_CAST6_AVX_X86_64=y
# CONFIG_CRYPTO_DES is not set
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=y
CONFIG_CRYPTO_SALSA20_X86_64=y
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=y
# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
CONFIG_CRYPTO_SERPENT_AVX_X86_64=y
CONFIG_CRYPTO_SERPENT_AVX2_X86_64=y
CONFIG_CRYPTO_TEA=m
# CONFIG_CRYPTO_TWOFISH is not set
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 is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
CONFIG_CRYPTO_LZ4=y
CONFIG_CRYPTO_LZ4HC=m
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_HW is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_PUBLIC_KEY_ALGO_RSA=y
CONFIG_X509_CERTIFICATE_PARSER=y
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
# CONFIG_KVM is not set
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
CONFIG_BITREVERSE=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_CRC_CCITT is not set
CONFIG_CRC16=m
CONFIG_CRC_T10DIF=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=y
# CONFIG_CRC32_SLICEBY8 is not set
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
CONFIG_CRC32_BIT=y
CONFIG_CRC7=y
CONFIG_LIBCRC32C=m
CONFIG_CRC8=m
CONFIG_ZLIB_INFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=y
CONFIG_LZ4HC_COMPRESS=m
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
# CONFIG_XZ_DEC_X86 is not set
CONFIG_XZ_DEC_POWERPC=y
# CONFIG_XZ_DEC_IA64 is not set
# CONFIG_XZ_DEC_ARM is not set
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
CONFIG_XZ_DEC_TEST=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_DEC16=y
CONFIG_BCH=m
CONFIG_BCH_CONST_PARAMS=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_AVERAGE is not set
CONFIG_CLZ_TAB=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
CONFIG_MPILIB=y
CONFIG_OID_REGISTRY=y
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [x86] Kernel panic - not syncing: Fatal exception in interrupt
2013-07-20 13:12 [x86] Kernel panic - not syncing: Fatal exception in interrupt Fengguang Wu
@ 2013-07-21 0:23 ` H. Peter Anvin
2013-07-21 8:30 ` Jiri Kosina
2013-07-22 11:14 ` [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier Jiri Kosina
1 sibling, 1 reply; 20+ messages in thread
From: H. Peter Anvin @ 2013-07-21 0:23 UTC (permalink / raw)
To: Fengguang Wu; +Cc: Jiri Kosina, H. Peter Anvin, linux-kernel
On 07/20/2013 06:12 AM, Fengguang Wu wrote:
> Greetings,
>
> I got the below dmesg and the first bad commit is
>
> commit 51b2c07b22261f19188d9a9071943d60a067481c
> Author: Jiri Kosina <jkosina@suse.cz>
> Date: Fri Jul 12 11:22:09 2013 +0200
>
> x86: Make jump_label use int3-based patching
>
> Make jump labels use text_poke_bp() for text patching instead of
> text_poke_smp(), avoiding the need for stop_machine().
>
> Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
> Link: http://lkml.kernel.org/r/alpine.LNX.2.00.1307121120250.29788@pobox.suse.cz
> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
>
>
> Parent commit not clean. Look out for wrong bisect!
>
> BUG: kernel boot crashed
>
> /kernel/x86_64-randconfig-c05-0718/fd4363fff3d96795d3feb1b3fb48ce590f186bdd/dmesg-kvm-xbm-7912-20130720142415-3.11.0-rc1-00166-g1faabf2-146
>
> [ 0.212429] devtmpfs: initialized
> [ 0.236027] int3: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
> [ 0.237157] Modules linked in:
> [ 0.237765] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.11.0-rc1-01429-g04bf576 #8
> [ 0.239129] task: ffff88000da1b040 ti: ffff88000da1c000 task.ti: ffff88000da1c000
> [ 0.240000] RIP: 0010:[<ffffffff811098cc>] [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
> [ 0.240000] RSP: 0000:ffff88000dd03f10 EFLAGS: 00000006
> [ 0.240000] RAX: 0000000000000000 RBX: ffff88000dd12940 RCX: ffffffff81769c40
> [ 0.240000] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000001
> [ 0.240000] RBP: ffff88000dd03f28 R08: ffffffff8176a8c0 R09: 0000000000000002
> [ 0.240000] R10: ffffffff810ff484 R11: ffff88000dd129e8 R12: ffff88000dbc90c0
> [ 0.240000] R13: ffff88000dbc90c0 R14: ffff88000da1dfd8 R15: ffff88000da1dfd8
> [ 0.240000] FS: 0000000000000000(0000) GS:ffff88000dd00000(0000) knlGS:0000000000000000
> [ 0.240000] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 0.240000] CR2: 00000000ffffffff CR3: 0000000001c88000 CR4: 00000000000006e0
> [ 0.240000] Stack:
> [ 0.240000] ffff88000dd12940 ffff88000dbc90c0 ffff88000da1dfd8 ffff88000dd03f48
> [ 0.240000] ffffffff81109e2b ffff88000dd12940 0000000000000000 ffff88000dd03f68
> [ 0.240000] ffffffff81109e9e 0000000000000000 0000000000012940 ffff88000dd03f98
> [ 0.240000] Call Trace:
> [ 0.240000] <IRQ>
> [ 0.240000] [<ffffffff81109e2b>] ttwu_do_activate.constprop.56+0x6d/0x79
> [ 0.240000] [<ffffffff81109e9e>] sched_ttwu_pending+0x67/0x84
> [ 0.240000] [<ffffffff8110c845>] scheduler_ipi+0x15a/0x2b0
> [ 0.240000] [<ffffffff8104dfb4>] smp_reschedule_interrupt+0x38/0x41
> [ 0.240000] [<ffffffff8173bf5d>] reschedule_interrupt+0x6d/0x80
> [ 0.240000] <EOI>
> [ 0.240000] [<ffffffff810ff484>] ? __atomic_notifier_call_chain+0x5/0xc1
> [ 0.240000] [<ffffffff8105cc30>] ? native_safe_halt+0xd/0x16
Well, it is definitely easy to see what happened here.
We took a breakpoint fault that the kernel didn't expect. This
shouldn't happen... the breakpoint handler should have said "oh, this is
an instruction being patched" and resumed, but that didn't happen.
Jiri, I'm wondering if by any chance we have more than one CPU inside
text_poke_bp() at the same time. The global variables in text_poke_bp()
don't seem to be protected against reentrancy at all.
-hpa
P.S. the sync_core() in do_sync_core() should be unnecessary, as IRET is
a synchronizing instruction.
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [x86] Kernel panic - not syncing: Fatal exception in interrupt
2013-07-21 0:23 ` H. Peter Anvin
@ 2013-07-21 8:30 ` Jiri Kosina
2013-07-21 16:21 ` Fengguang Wu
` (2 more replies)
0 siblings, 3 replies; 20+ messages in thread
From: Jiri Kosina @ 2013-07-21 8:30 UTC (permalink / raw)
To: H. Peter Anvin; +Cc: Fengguang Wu, H. Peter Anvin, linux-kernel
On Sat, 20 Jul 2013, H. Peter Anvin wrote:
> > [ 0.212429] devtmpfs: initialized
> > [ 0.236027] int3: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
> > [ 0.237157] Modules linked in:
> > [ 0.237765] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.11.0-rc1-01429-g04bf576 #8
> > [ 0.239129] task: ffff88000da1b040 ti: ffff88000da1c000 task.ti: ffff88000da1c000
> > [ 0.240000] RIP: 0010:[<ffffffff811098cc>] [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
> > [ 0.240000] RSP: 0000:ffff88000dd03f10 EFLAGS: 00000006
> > [ 0.240000] RAX: 0000000000000000 RBX: ffff88000dd12940 RCX: ffffffff81769c40
> > [ 0.240000] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000001
> > [ 0.240000] RBP: ffff88000dd03f28 R08: ffffffff8176a8c0 R09: 0000000000000002
> > [ 0.240000] R10: ffffffff810ff484 R11: ffff88000dd129e8 R12: ffff88000dbc90c0
> > [ 0.240000] R13: ffff88000dbc90c0 R14: ffff88000da1dfd8 R15: ffff88000da1dfd8
> > [ 0.240000] FS: 0000000000000000(0000) GS:ffff88000dd00000(0000) knlGS:0000000000000000
> > [ 0.240000] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> > [ 0.240000] CR2: 00000000ffffffff CR3: 0000000001c88000 CR4: 00000000000006e0
> > [ 0.240000] Stack:
> > [ 0.240000] ffff88000dd12940 ffff88000dbc90c0 ffff88000da1dfd8 ffff88000dd03f48
> > [ 0.240000] ffffffff81109e2b ffff88000dd12940 0000000000000000 ffff88000dd03f68
> > [ 0.240000] ffffffff81109e9e 0000000000000000 0000000000012940 ffff88000dd03f98
> > [ 0.240000] Call Trace:
> > [ 0.240000] <IRQ>
> > [ 0.240000] [<ffffffff81109e2b>] ttwu_do_activate.constprop.56+0x6d/0x79
> > [ 0.240000] [<ffffffff81109e9e>] sched_ttwu_pending+0x67/0x84
> > [ 0.240000] [<ffffffff8110c845>] scheduler_ipi+0x15a/0x2b0
> > [ 0.240000] [<ffffffff8104dfb4>] smp_reschedule_interrupt+0x38/0x41
> > [ 0.240000] [<ffffffff8173bf5d>] reschedule_interrupt+0x6d/0x80
> > [ 0.240000] <EOI>
> > [ 0.240000] [<ffffffff810ff484>] ? __atomic_notifier_call_chain+0x5/0xc1
> > [ 0.240000] [<ffffffff8105cc30>] ? native_safe_halt+0xd/0x16
>
> Well, it is definitely easy to see what happened here.
>
> We took a breakpoint fault that the kernel didn't expect. This
> shouldn't happen... the breakpoint handler should have said "oh, this is
> an instruction being patched" and resumed, but that didn't happen.
>
> Jiri, I'm wondering if by any chance we have more than one CPU inside
> text_poke_bp() at the same time. The global variables in text_poke_bp()
> don't seem to be protected against reentrancy at all.
That shouldn't happen, because:
- text_poke_bp() should always be called under text_mutex (and
arch_jump_label_transform() does that properly)
- correctness between int3_notify() and texp_poke_bp() wrt. global
variables is achieved through barrier
So we should be safe here afaics.
What I am however wondering whether can't be case here is that the jump
label was used before int3_notifier has been registered.
I am thinking about ways around this, but we'll probably have to do the
same ftrace is doing, i.e. hook into do_int3() directly instead of relying
on the notifier to be registered in time.
Fengguang, as I am not able to reproduce this bug locally, could you do me
a favor and test whether the patch below works the problem around, just
for the sake of testing the hypothesis?
Thanks.
From: Jiri Kosina <jkosina@suse.cz>
Subject: [PATCH] x86: call out into int3 handler directly instead of using notifier
---
arch/x86/include/asm/alternative.h | 2 ++
arch/x86/kernel/alternative.c | 22 +++++++++++++++++++++-
arch/x86/kernel/traps.c | 4 ++++
3 files changed, 27 insertions(+), 1 deletions(-)
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 3abf8dd..c22a41d 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -5,6 +5,7 @@
#include <linux/stddef.h>
#include <linux/stringify.h>
#include <asm/asm.h>
+#include <asm/ptrace.h>
/*
* Alternative inline assembly for SMP.
@@ -232,6 +233,7 @@ struct text_poke_param {
size_t len;
};
+extern int poke_bp_int3_handler(struct pt_regs *regs);
extern void *text_poke(void *addr, const void *opcode, size_t len);
extern void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler);
extern void *text_poke_smp(void *addr, const void *opcode, size_t len);
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 0ab4936..e1088f2 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -605,6 +605,24 @@ static void do_sync_core(void *info)
static bool bp_patching_in_progress;
static void *bp_int3_handler, *bp_int3_addr;
+int poke_bp_int3_handler(struct pt_regs *regs)
+{
+ /* bp_patching_in_progress */
+ smp_rmb();
+
+ if (likely(!bp_patching_in_progress))
+ return 0;
+
+ if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
+ return 0;
+
+ /* set up the specified breakpoint handler */
+ regs->ip = (unsigned long) bp_int3_handler;
+
+ return 1;
+
+}
+
static int int3_notify(struct notifier_block *self, unsigned long val, void *data)
{
struct die_args *args = data;
@@ -689,6 +707,7 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
return addr;
}
+#if 0
/* this one needs to run before anything else handles it as a
* regular exception */
static struct notifier_block int3_nb = {
@@ -700,8 +719,9 @@ static int __init int3_init(void)
{
return register_die_notifier(&int3_nb);
}
-
arch_initcall(int3_init);
+#endif
+
/*
* Cross-modifying kernel text with stop_machine().
* This code originally comes from immediate value.
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 772e2a8..e464764 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -58,6 +58,7 @@
#include <asm/mce.h>
#include <asm/fixmap.h>
#include <asm/mach_traps.h>
+#include <asm/alternative.h>
#ifdef CONFIG_X86_64
#include <asm/x86_init.h>
@@ -324,6 +325,9 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co
ftrace_int3_handler(regs))
return;
#endif
+ if (poke_bp_int3_handler(regs))
+ return;
+
prev_state = exception_enter();
#ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
--
Jiri Kosina
SUSE Labs
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [x86] Kernel panic - not syncing: Fatal exception in interrupt
2013-07-21 8:30 ` Jiri Kosina
@ 2013-07-21 16:21 ` Fengguang Wu
2013-07-21 17:21 ` H. Peter Anvin
2013-07-22 1:07 ` Fengguang Wu
2 siblings, 0 replies; 20+ messages in thread
From: Fengguang Wu @ 2013-07-21 16:21 UTC (permalink / raw)
To: Jiri Kosina; +Cc: H. Peter Anvin, H. Peter Anvin, linux-kernel
Hi Jiri,
> Fengguang, as I am not able to reproduce this bug locally, could you do me
> a favor and test whether the patch below works the problem around, just
> for the sake of testing the hypothesis?
Sure. I just created a branch with this patch on top of the first bad
commit, and queued the branch for boot tests.
Thanks,
Fengguang
> From: Jiri Kosina <jkosina@suse.cz>
> Subject: [PATCH] x86: call out into int3 handler directly instead of using notifier
>
> ---
> arch/x86/include/asm/alternative.h | 2 ++
> arch/x86/kernel/alternative.c | 22 +++++++++++++++++++++-
> arch/x86/kernel/traps.c | 4 ++++
> 3 files changed, 27 insertions(+), 1 deletions(-)
>
> diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
> index 3abf8dd..c22a41d 100644
> --- a/arch/x86/include/asm/alternative.h
> +++ b/arch/x86/include/asm/alternative.h
> @@ -5,6 +5,7 @@
> #include <linux/stddef.h>
> #include <linux/stringify.h>
> #include <asm/asm.h>
> +#include <asm/ptrace.h>
>
> /*
> * Alternative inline assembly for SMP.
> @@ -232,6 +233,7 @@ struct text_poke_param {
> size_t len;
> };
>
> +extern int poke_bp_int3_handler(struct pt_regs *regs);
> extern void *text_poke(void *addr, const void *opcode, size_t len);
> extern void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler);
> extern void *text_poke_smp(void *addr, const void *opcode, size_t len);
> diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
> index 0ab4936..e1088f2 100644
> --- a/arch/x86/kernel/alternative.c
> +++ b/arch/x86/kernel/alternative.c
> @@ -605,6 +605,24 @@ static void do_sync_core(void *info)
> static bool bp_patching_in_progress;
> static void *bp_int3_handler, *bp_int3_addr;
>
> +int poke_bp_int3_handler(struct pt_regs *regs)
> +{
> + /* bp_patching_in_progress */
> + smp_rmb();
> +
> + if (likely(!bp_patching_in_progress))
> + return 0;
> +
> + if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
> + return 0;
> +
> + /* set up the specified breakpoint handler */
> + regs->ip = (unsigned long) bp_int3_handler;
> +
> + return 1;
> +
> +}
> +
> static int int3_notify(struct notifier_block *self, unsigned long val, void *data)
> {
> struct die_args *args = data;
> @@ -689,6 +707,7 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
> return addr;
> }
>
> +#if 0
> /* this one needs to run before anything else handles it as a
> * regular exception */
> static struct notifier_block int3_nb = {
> @@ -700,8 +719,9 @@ static int __init int3_init(void)
> {
> return register_die_notifier(&int3_nb);
> }
> -
> arch_initcall(int3_init);
> +#endif
> +
> /*
> * Cross-modifying kernel text with stop_machine().
> * This code originally comes from immediate value.
> diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
> index 772e2a8..e464764 100644
> --- a/arch/x86/kernel/traps.c
> +++ b/arch/x86/kernel/traps.c
> @@ -58,6 +58,7 @@
> #include <asm/mce.h>
> #include <asm/fixmap.h>
> #include <asm/mach_traps.h>
> +#include <asm/alternative.h>
>
> #ifdef CONFIG_X86_64
> #include <asm/x86_init.h>
> @@ -324,6 +325,9 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co
> ftrace_int3_handler(regs))
> return;
> #endif
> + if (poke_bp_int3_handler(regs))
> + return;
> +
> prev_state = exception_enter();
> #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
> if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
>
> --
> Jiri Kosina
> SUSE Labs
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [x86] Kernel panic - not syncing: Fatal exception in interrupt
2013-07-21 8:30 ` Jiri Kosina
2013-07-21 16:21 ` Fengguang Wu
@ 2013-07-21 17:21 ` H. Peter Anvin
2013-07-22 11:18 ` Jiri Kosina
2013-07-22 1:07 ` Fengguang Wu
2 siblings, 1 reply; 20+ messages in thread
From: H. Peter Anvin @ 2013-07-21 17:21 UTC (permalink / raw)
To: Jiri Kosina; +Cc: Fengguang Wu, H. Peter Anvin, linux-kernel
Honestly, why don't we make the patch list (rbtree, whatever) a permanent part of the default breakpoint handler. It only applies to kernel space anyway and the kernel doesn't have any permanent breakpoints so there should be no performance reason not to.
Jiri Kosina <jkosina@suse.cz> wrote:
>On Sat, 20 Jul 2013, H. Peter Anvin wrote:
>
>> > [ 0.212429] devtmpfs: initialized
>> > [ 0.236027] int3: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
>> > [ 0.237157] Modules linked in:
>> > [ 0.237765] CPU: 1 PID: 0 Comm: swapper/1 Not tainted
>3.11.0-rc1-01429-g04bf576 #8
>> > [ 0.239129] task: ffff88000da1b040 ti: ffff88000da1c000 task.ti:
>ffff88000da1c000
>> > [ 0.240000] RIP: 0010:[<ffffffff811098cc>] [<ffffffff811098cc>]
>ttwu_do_wakeup+0x28/0x225
>> > [ 0.240000] RSP: 0000:ffff88000dd03f10 EFLAGS: 00000006
>> > [ 0.240000] RAX: 0000000000000000 RBX: ffff88000dd12940 RCX:
>ffffffff81769c40
>> > [ 0.240000] RDX: 0000000000000002 RSI: 0000000000000000 RDI:
>0000000000000001
>> > [ 0.240000] RBP: ffff88000dd03f28 R08: ffffffff8176a8c0 R09:
>0000000000000002
>> > [ 0.240000] R10: ffffffff810ff484 R11: ffff88000dd129e8 R12:
>ffff88000dbc90c0
>> > [ 0.240000] R13: ffff88000dbc90c0 R14: ffff88000da1dfd8 R15:
>ffff88000da1dfd8
>> > [ 0.240000] FS: 0000000000000000(0000)
>GS:ffff88000dd00000(0000) knlGS:0000000000000000
>> > [ 0.240000] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>> > [ 0.240000] CR2: 00000000ffffffff CR3: 0000000001c88000 CR4:
>00000000000006e0
>> > [ 0.240000] Stack:
>> > [ 0.240000] ffff88000dd12940 ffff88000dbc90c0 ffff88000da1dfd8
>ffff88000dd03f48
>> > [ 0.240000] ffffffff81109e2b ffff88000dd12940 0000000000000000
>ffff88000dd03f68
>> > [ 0.240000] ffffffff81109e9e 0000000000000000 0000000000012940
>ffff88000dd03f98
>> > [ 0.240000] Call Trace:
>> > [ 0.240000] <IRQ>
>> > [ 0.240000] [<ffffffff81109e2b>]
>ttwu_do_activate.constprop.56+0x6d/0x79
>> > [ 0.240000] [<ffffffff81109e9e>] sched_ttwu_pending+0x67/0x84
>> > [ 0.240000] [<ffffffff8110c845>] scheduler_ipi+0x15a/0x2b0
>> > [ 0.240000] [<ffffffff8104dfb4>]
>smp_reschedule_interrupt+0x38/0x41
>> > [ 0.240000] [<ffffffff8173bf5d>] reschedule_interrupt+0x6d/0x80
>> > [ 0.240000] <EOI>
>> > [ 0.240000] [<ffffffff810ff484>] ?
>__atomic_notifier_call_chain+0x5/0xc1
>> > [ 0.240000] [<ffffffff8105cc30>] ? native_safe_halt+0xd/0x16
>>
>> Well, it is definitely easy to see what happened here.
>>
>> We took a breakpoint fault that the kernel didn't expect. This
>> shouldn't happen... the breakpoint handler should have said "oh, this
>is
>> an instruction being patched" and resumed, but that didn't happen.
>>
>> Jiri, I'm wondering if by any chance we have more than one CPU inside
>> text_poke_bp() at the same time. The global variables in
>text_poke_bp()
>> don't seem to be protected against reentrancy at all.
>
>That shouldn't happen, because:
>
>
>- text_poke_bp() should always be called under text_mutex (and
> arch_jump_label_transform() does that properly)
>
>- correctness between int3_notify() and texp_poke_bp() wrt. global
> variables is achieved through barrier
>
>So we should be safe here afaics.
>
>What I am however wondering whether can't be case here is that the jump
>
>label was used before int3_notifier has been registered.
>I am thinking about ways around this, but we'll probably have to do the
>
>same ftrace is doing, i.e. hook into do_int3() directly instead of
>relying
>on the notifier to be registered in time.
>
>Fengguang, as I am not able to reproduce this bug locally, could you do
>me
>a favor and test whether the patch below works the problem around, just
>
>for the sake of testing the hypothesis?
>
>Thanks.
>
>
>From: Jiri Kosina <jkosina@suse.cz>
>Subject: [PATCH] x86: call out into int3 handler directly instead of
>using notifier
>
>---
> arch/x86/include/asm/alternative.h | 2 ++
> arch/x86/kernel/alternative.c | 22 +++++++++++++++++++++-
> arch/x86/kernel/traps.c | 4 ++++
> 3 files changed, 27 insertions(+), 1 deletions(-)
>
>diff --git a/arch/x86/include/asm/alternative.h
>b/arch/x86/include/asm/alternative.h
>index 3abf8dd..c22a41d 100644
>--- a/arch/x86/include/asm/alternative.h
>+++ b/arch/x86/include/asm/alternative.h
>@@ -5,6 +5,7 @@
> #include <linux/stddef.h>
> #include <linux/stringify.h>
> #include <asm/asm.h>
>+#include <asm/ptrace.h>
>
> /*
> * Alternative inline assembly for SMP.
>@@ -232,6 +233,7 @@ struct text_poke_param {
> size_t len;
> };
>
>+extern int poke_bp_int3_handler(struct pt_regs *regs);
> extern void *text_poke(void *addr, const void *opcode, size_t len);
>extern void *text_poke_bp(void *addr, const void *opcode, size_t len,
>void *handler);
>extern void *text_poke_smp(void *addr, const void *opcode, size_t len);
>diff --git a/arch/x86/kernel/alternative.c
>b/arch/x86/kernel/alternative.c
>index 0ab4936..e1088f2 100644
>--- a/arch/x86/kernel/alternative.c
>+++ b/arch/x86/kernel/alternative.c
>@@ -605,6 +605,24 @@ static void do_sync_core(void *info)
> static bool bp_patching_in_progress;
> static void *bp_int3_handler, *bp_int3_addr;
>
>+int poke_bp_int3_handler(struct pt_regs *regs)
>+{
>+ /* bp_patching_in_progress */
>+ smp_rmb();
>+
>+ if (likely(!bp_patching_in_progress))
>+ return 0;
>+
>+ if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
>+ return 0;
>+
>+ /* set up the specified breakpoint handler */
>+ regs->ip = (unsigned long) bp_int3_handler;
>+
>+ return 1;
>+
>+}
>+
>static int int3_notify(struct notifier_block *self, unsigned long val,
>void *data)
> {
> struct die_args *args = data;
>@@ -689,6 +707,7 @@ void *text_poke_bp(void *addr, const void *opcode,
>size_t len, void *handler)
> return addr;
> }
>
>+#if 0
> /* this one needs to run before anything else handles it as a
> * regular exception */
> static struct notifier_block int3_nb = {
>@@ -700,8 +719,9 @@ static int __init int3_init(void)
> {
> return register_die_notifier(&int3_nb);
> }
>-
> arch_initcall(int3_init);
>+#endif
>+
> /*
> * Cross-modifying kernel text with stop_machine().
> * This code originally comes from immediate value.
>diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
>index 772e2a8..e464764 100644
>--- a/arch/x86/kernel/traps.c
>+++ b/arch/x86/kernel/traps.c
>@@ -58,6 +58,7 @@
> #include <asm/mce.h>
> #include <asm/fixmap.h>
> #include <asm/mach_traps.h>
>+#include <asm/alternative.h>
>
> #ifdef CONFIG_X86_64
> #include <asm/x86_init.h>
>@@ -324,6 +325,9 @@ dotraplinkage void __kprobes notrace do_int3(struct
>pt_regs *regs, long error_co
> ftrace_int3_handler(regs))
> return;
> #endif
>+ if (poke_bp_int3_handler(regs))
>+ return;
>+
> prev_state = exception_enter();
> #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
> if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
--
Sent from my mobile phone. Please excuse brevity and lack of formatting.
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [x86] Kernel panic - not syncing: Fatal exception in interrupt
2013-07-21 8:30 ` Jiri Kosina
2013-07-21 16:21 ` Fengguang Wu
2013-07-21 17:21 ` H. Peter Anvin
@ 2013-07-22 1:07 ` Fengguang Wu
2 siblings, 0 replies; 20+ messages in thread
From: Fengguang Wu @ 2013-07-22 1:07 UTC (permalink / raw)
To: Jiri Kosina; +Cc: H. Peter Anvin, H. Peter Anvin, linux-kernel
Hi Jiri,
> What I am however wondering whether can't be case here is that the jump
> label was used before int3_notifier has been registered.
> I am thinking about ways around this, but we'll probably have to do the
> same ftrace is doing, i.e. hook into do_int3() directly instead of relying
> on the notifier to be registered in time.
>
> Fengguang, as I am not able to reproduce this bug locally, could you do me
> a favor and test whether the patch below works the problem around, just
> for the sake of testing the hypothesis?
I tested 1000 boots with the patch and find no more boot problem.
Thanks,
Fengguang
> From: Jiri Kosina <jkosina@suse.cz>
> Subject: [PATCH] x86: call out into int3 handler directly instead of using notifier
>
> ---
> arch/x86/include/asm/alternative.h | 2 ++
> arch/x86/kernel/alternative.c | 22 +++++++++++++++++++++-
> arch/x86/kernel/traps.c | 4 ++++
> 3 files changed, 27 insertions(+), 1 deletions(-)
>
> diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
> index 3abf8dd..c22a41d 100644
> --- a/arch/x86/include/asm/alternative.h
> +++ b/arch/x86/include/asm/alternative.h
> @@ -5,6 +5,7 @@
> #include <linux/stddef.h>
> #include <linux/stringify.h>
> #include <asm/asm.h>
> +#include <asm/ptrace.h>
>
> /*
> * Alternative inline assembly for SMP.
> @@ -232,6 +233,7 @@ struct text_poke_param {
> size_t len;
> };
>
> +extern int poke_bp_int3_handler(struct pt_regs *regs);
> extern void *text_poke(void *addr, const void *opcode, size_t len);
> extern void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler);
> extern void *text_poke_smp(void *addr, const void *opcode, size_t len);
> diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
> index 0ab4936..e1088f2 100644
> --- a/arch/x86/kernel/alternative.c
> +++ b/arch/x86/kernel/alternative.c
> @@ -605,6 +605,24 @@ static void do_sync_core(void *info)
> static bool bp_patching_in_progress;
> static void *bp_int3_handler, *bp_int3_addr;
>
> +int poke_bp_int3_handler(struct pt_regs *regs)
> +{
> + /* bp_patching_in_progress */
> + smp_rmb();
> +
> + if (likely(!bp_patching_in_progress))
> + return 0;
> +
> + if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
> + return 0;
> +
> + /* set up the specified breakpoint handler */
> + regs->ip = (unsigned long) bp_int3_handler;
> +
> + return 1;
> +
> +}
> +
> static int int3_notify(struct notifier_block *self, unsigned long val, void *data)
> {
> struct die_args *args = data;
> @@ -689,6 +707,7 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
> return addr;
> }
>
> +#if 0
> /* this one needs to run before anything else handles it as a
> * regular exception */
> static struct notifier_block int3_nb = {
> @@ -700,8 +719,9 @@ static int __init int3_init(void)
> {
> return register_die_notifier(&int3_nb);
> }
> -
> arch_initcall(int3_init);
> +#endif
> +
> /*
> * Cross-modifying kernel text with stop_machine().
> * This code originally comes from immediate value.
> diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
> index 772e2a8..e464764 100644
> --- a/arch/x86/kernel/traps.c
> +++ b/arch/x86/kernel/traps.c
> @@ -58,6 +58,7 @@
> #include <asm/mce.h>
> #include <asm/fixmap.h>
> #include <asm/mach_traps.h>
> +#include <asm/alternative.h>
>
> #ifdef CONFIG_X86_64
> #include <asm/x86_init.h>
> @@ -324,6 +325,9 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co
> ftrace_int3_handler(regs))
> return;
> #endif
> + if (poke_bp_int3_handler(regs))
> + return;
> +
> prev_state = exception_enter();
> #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
> if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
>
> --
> Jiri Kosina
> SUSE Labs
^ permalink raw reply [flat|nested] 20+ messages in thread
* [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier
2013-07-20 13:12 [x86] Kernel panic - not syncing: Fatal exception in interrupt Fengguang Wu
2013-07-21 0:23 ` H. Peter Anvin
@ 2013-07-22 11:14 ` Jiri Kosina
2013-07-22 11:24 ` Masami Hiramatsu
2013-07-22 20:53 ` H. Peter Anvin
1 sibling, 2 replies; 20+ messages in thread
From: Jiri Kosina @ 2013-07-22 11:14 UTC (permalink / raw)
To: H. Peter Anvin
Cc: linux-kernel, Fengguang Wu, Steven Rostedt, Masami Hiramatsu, x86
In fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based instruction
patching"), the mechanism that was introduced for notifying alternatives
code from int3 exception handler that and exception occured was
die_notifier.
This is however problematic, as early code might be using jump labels even
before the notifier registration has been performed, which will then lead
to an oops due to unhandled exception. One of such occurences has been
encountered by Fengguang:
int3: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.11.0-rc1-01429-g04bf576 #8
task: ffff88000da1b040 ti: ffff88000da1c000 task.ti: ffff88000da1c000
RIP: 0010:[<ffffffff811098cc>] [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
RSP: 0000:ffff88000dd03f10 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffff88000dd12940 RCX: ffffffff81769c40
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff88000dd03f28 R08: ffffffff8176a8c0 R09: 0000000000000002
R10: ffffffff810ff484 R11: ffff88000dd129e8 R12: ffff88000dbc90c0
R13: ffff88000dbc90c0 R14: ffff88000da1dfd8 R15: ffff88000da1dfd8
FS: 0000000000000000(0000) GS:ffff88000dd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000000ffffffff CR3: 0000000001c88000 CR4: 00000000000006e0
Stack:
ffff88000dd12940 ffff88000dbc90c0 ffff88000da1dfd8 ffff88000dd03f48
ffffffff81109e2b ffff88000dd12940 0000000000000000 ffff88000dd03f68
ffffffff81109e9e 0000000000000000 0000000000012940 ffff88000dd03f98
Call Trace:
<IRQ>
[<ffffffff81109e2b>] ttwu_do_activate.constprop.56+0x6d/0x79
[<ffffffff81109e9e>] sched_ttwu_pending+0x67/0x84
[<ffffffff8110c845>] scheduler_ipi+0x15a/0x2b0
[<ffffffff8104dfb4>] smp_reschedule_interrupt+0x38/0x41
[<ffffffff8173bf5d>] reschedule_interrupt+0x6d/0x80
<EOI>
[<ffffffff810ff484>] ? __atomic_notifier_call_chain+0x5/0xc1
[<ffffffff8105cc30>] ? native_safe_halt+0xd/0x16
[<ffffffff81015f10>] default_idle+0x147/0x282
[<ffffffff81017026>] arch_cpu_idle+0x3d/0x5d
[<ffffffff81127d6a>] cpu_idle_loop+0x46d/0x5db
[<ffffffff81127f5c>] cpu_startup_entry+0x84/0x84
[<ffffffff8104f4f8>] start_secondary+0x3c8/0x3d5
Code: 5c 5d c3 e8 d7 0f 63 00 55 48 ff 05 1f 5d 1e 01 48 89 e5 41 55 49 89 f5 41 54 53 48 89 fb e8 8d fe ff ff 48
01 cc <1f> 44 00 00 31 c0 eb 0c 48 ff 05 05 5d 1e 01 b8 01 00 00 00 48
RIP [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
RSP <ffff88000dd03f10>
---[ end trace 0d3288a047152a17 ]---
Fix this by directly calling poke_int3_handler() from the int3 exception
handler (analogically to what ftrace has been doing already), instead of
relying on notifier, registration of which might not have yet been
finalized by the time of the first trap.
Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
arch/x86/include/asm/alternative.h | 2 ++
arch/x86/kernel/alternative.c | 31 ++++++++-----------------------
arch/x86/kernel/traps.c | 4 ++++
kernel/kprobes.c | 2 +-
4 files changed, 15 insertions(+), 24 deletions(-)
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 3abf8dd..4df44c2 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -5,6 +5,7 @@
#include <linux/stddef.h>
#include <linux/stringify.h>
#include <asm/asm.h>
+#include <asm/ptrace.h>
/*
* Alternative inline assembly for SMP.
@@ -232,6 +233,7 @@ struct text_poke_param {
size_t len;
};
+extern int poke_int3_handler(struct pt_regs *regs);
extern void *text_poke(void *addr, const void *opcode, size_t len);
extern void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler);
extern void *text_poke_smp(void *addr, const void *opcode, size_t len);
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 0ab4936..7f6351f 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -605,26 +605,24 @@ static void do_sync_core(void *info)
static bool bp_patching_in_progress;
static void *bp_int3_handler, *bp_int3_addr;
-static int int3_notify(struct notifier_block *self, unsigned long val, void *data)
+int poke_int3_handler(struct pt_regs *regs)
{
- struct die_args *args = data;
-
/* bp_patching_in_progress */
smp_rmb();
if (likely(!bp_patching_in_progress))
- return NOTIFY_DONE;
+ return 0;
- /* we are not interested in non-int3 faults and ring > 0 faults */
- if (val != DIE_INT3 || !args->regs || user_mode_vm(args->regs)
- || args->regs->ip != (unsigned long)bp_int3_addr)
- return NOTIFY_DONE;
+ if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
+ return 0;
/* set up the specified breakpoint handler */
- args->regs->ip = (unsigned long) bp_int3_handler;
+ regs->ip = (unsigned long) bp_int3_handler;
+
+ return 1;
- return NOTIFY_STOP;
}
+
/**
* text_poke_bp() -- update instructions on live kernel on SMP
* @addr: address to patch
@@ -689,19 +687,6 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
return addr;
}
-/* this one needs to run before anything else handles it as a
- * regular exception */
-static struct notifier_block int3_nb = {
- .priority = 0x7fffffff,
- .notifier_call = int3_notify
-};
-
-static int __init int3_init(void)
-{
- return register_die_notifier(&int3_nb);
-}
-
-arch_initcall(int3_init);
/*
* Cross-modifying kernel text with stop_machine().
* This code originally comes from immediate value.
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 772e2a8..2694486 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -58,6 +58,7 @@
#include <asm/mce.h>
#include <asm/fixmap.h>
#include <asm/mach_traps.h>
+#include <asm/alternative.h>
#ifdef CONFIG_X86_64
#include <asm/x86_init.h>
@@ -324,6 +325,9 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co
ftrace_int3_handler(regs))
return;
#endif
+ if (poke_int3_handler(regs))
+ return;
+
prev_state = exception_enter();
#ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index d6db7bd..bddf3b2 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1709,7 +1709,7 @@ EXPORT_SYMBOL_GPL(unregister_kprobes);
static struct notifier_block kprobe_exceptions_nb = {
.notifier_call = kprobe_exceptions_notify,
- .priority = 0x7ffffff0 /* High priority, but not first. */
+ .priority = 0x7fffffff /* we need to be notified first */
};
unsigned long __weak arch_deref_entry_point(void *entry)
--
1.7.8.3
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [x86] Kernel panic - not syncing: Fatal exception in interrupt
2013-07-21 17:21 ` H. Peter Anvin
@ 2013-07-22 11:18 ` Jiri Kosina
0 siblings, 0 replies; 20+ messages in thread
From: Jiri Kosina @ 2013-07-22 11:18 UTC (permalink / raw)
To: H. Peter Anvin; +Cc: Fengguang Wu, H. Peter Anvin, linux-kernel
On Sun, 21 Jul 2013, H. Peter Anvin wrote:
> Honestly, why don't we make the patch list (rbtree, whatever) a
> permanent part of the default breakpoint handler. It only applies to
> kernel space anyway and the kernel doesn't have any permanent
> breakpoints so there should be no performance reason not to.
That is actually quite a nice idea, and I am putting it on my TODO list
for ftrace conversion.
Thanks,
--
Jiri Kosina
SUSE Labs
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier
2013-07-22 11:14 ` [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier Jiri Kosina
@ 2013-07-22 11:24 ` Masami Hiramatsu
2013-07-22 20:53 ` H. Peter Anvin
1 sibling, 0 replies; 20+ messages in thread
From: Masami Hiramatsu @ 2013-07-22 11:24 UTC (permalink / raw)
To: Jiri Kosina
Cc: H. Peter Anvin, linux-kernel, Fengguang Wu, Steven Rostedt, x86
(2013/07/22 20:14), Jiri Kosina wrote:
> In fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based instruction
> patching"), the mechanism that was introduced for notifying alternatives
> code from int3 exception handler that and exception occured was
> die_notifier.
>
> This is however problematic, as early code might be using jump labels even
> before the notifier registration has been performed, which will then lead
> to an oops due to unhandled exception. One of such occurences has been
> encountered by Fengguang:
Ah, right!
>
> int3: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
> Modules linked in:
> CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.11.0-rc1-01429-g04bf576 #8
> task: ffff88000da1b040 ti: ffff88000da1c000 task.ti: ffff88000da1c000
> RIP: 0010:[<ffffffff811098cc>] [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
> RSP: 0000:ffff88000dd03f10 EFLAGS: 00000006
> RAX: 0000000000000000 RBX: ffff88000dd12940 RCX: ffffffff81769c40
> RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000001
> RBP: ffff88000dd03f28 R08: ffffffff8176a8c0 R09: 0000000000000002
> R10: ffffffff810ff484 R11: ffff88000dd129e8 R12: ffff88000dbc90c0
> R13: ffff88000dbc90c0 R14: ffff88000da1dfd8 R15: ffff88000da1dfd8
> FS: 0000000000000000(0000) GS:ffff88000dd00000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> CR2: 00000000ffffffff CR3: 0000000001c88000 CR4: 00000000000006e0
> Stack:
> ffff88000dd12940 ffff88000dbc90c0 ffff88000da1dfd8 ffff88000dd03f48
> ffffffff81109e2b ffff88000dd12940 0000000000000000 ffff88000dd03f68
> ffffffff81109e9e 0000000000000000 0000000000012940 ffff88000dd03f98
> Call Trace:
> <IRQ>
> [<ffffffff81109e2b>] ttwu_do_activate.constprop.56+0x6d/0x79
> [<ffffffff81109e9e>] sched_ttwu_pending+0x67/0x84
> [<ffffffff8110c845>] scheduler_ipi+0x15a/0x2b0
> [<ffffffff8104dfb4>] smp_reschedule_interrupt+0x38/0x41
> [<ffffffff8173bf5d>] reschedule_interrupt+0x6d/0x80
> <EOI>
> [<ffffffff810ff484>] ? __atomic_notifier_call_chain+0x5/0xc1
> [<ffffffff8105cc30>] ? native_safe_halt+0xd/0x16
> [<ffffffff81015f10>] default_idle+0x147/0x282
> [<ffffffff81017026>] arch_cpu_idle+0x3d/0x5d
> [<ffffffff81127d6a>] cpu_idle_loop+0x46d/0x5db
> [<ffffffff81127f5c>] cpu_startup_entry+0x84/0x84
> [<ffffffff8104f4f8>] start_secondary+0x3c8/0x3d5
> Code: 5c 5d c3 e8 d7 0f 63 00 55 48 ff 05 1f 5d 1e 01 48 89 e5 41 55 49 89 f5 41 54 53 48 89 fb e8 8d fe ff ff 48
> 01 cc <1f> 44 00 00 31 c0 eb 0c 48 ff 05 05 5d 1e 01 b8 01 00 00 00 48
> RIP [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
> RSP <ffff88000dd03f10>
> ---[ end trace 0d3288a047152a17 ]---
>
> Fix this by directly calling poke_int3_handler() from the int3 exception
> handler (analogically to what ftrace has been doing already), instead of
> relying on notifier, registration of which might not have yet been
> finalized by the time of the first trap.
This seems OK for me.
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Thanks!
>
> Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
> ---
> arch/x86/include/asm/alternative.h | 2 ++
> arch/x86/kernel/alternative.c | 31 ++++++++-----------------------
> arch/x86/kernel/traps.c | 4 ++++
> kernel/kprobes.c | 2 +-
> 4 files changed, 15 insertions(+), 24 deletions(-)
>
> diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
> index 3abf8dd..4df44c2 100644
> --- a/arch/x86/include/asm/alternative.h
> +++ b/arch/x86/include/asm/alternative.h
> @@ -5,6 +5,7 @@
> #include <linux/stddef.h>
> #include <linux/stringify.h>
> #include <asm/asm.h>
> +#include <asm/ptrace.h>
>
> /*
> * Alternative inline assembly for SMP.
> @@ -232,6 +233,7 @@ struct text_poke_param {
> size_t len;
> };
>
> +extern int poke_int3_handler(struct pt_regs *regs);
> extern void *text_poke(void *addr, const void *opcode, size_t len);
> extern void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler);
> extern void *text_poke_smp(void *addr, const void *opcode, size_t len);
> diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
> index 0ab4936..7f6351f 100644
> --- a/arch/x86/kernel/alternative.c
> +++ b/arch/x86/kernel/alternative.c
> @@ -605,26 +605,24 @@ static void do_sync_core(void *info)
> static bool bp_patching_in_progress;
> static void *bp_int3_handler, *bp_int3_addr;
>
> -static int int3_notify(struct notifier_block *self, unsigned long val, void *data)
> +int poke_int3_handler(struct pt_regs *regs)
> {
> - struct die_args *args = data;
> -
> /* bp_patching_in_progress */
> smp_rmb();
>
> if (likely(!bp_patching_in_progress))
> - return NOTIFY_DONE;
> + return 0;
>
> - /* we are not interested in non-int3 faults and ring > 0 faults */
> - if (val != DIE_INT3 || !args->regs || user_mode_vm(args->regs)
> - || args->regs->ip != (unsigned long)bp_int3_addr)
> - return NOTIFY_DONE;
> + if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
> + return 0;
>
> /* set up the specified breakpoint handler */
> - args->regs->ip = (unsigned long) bp_int3_handler;
> + regs->ip = (unsigned long) bp_int3_handler;
> +
> + return 1;
>
> - return NOTIFY_STOP;
> }
> +
> /**
> * text_poke_bp() -- update instructions on live kernel on SMP
> * @addr: address to patch
> @@ -689,19 +687,6 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
> return addr;
> }
>
> -/* this one needs to run before anything else handles it as a
> - * regular exception */
> -static struct notifier_block int3_nb = {
> - .priority = 0x7fffffff,
> - .notifier_call = int3_notify
> -};
> -
> -static int __init int3_init(void)
> -{
> - return register_die_notifier(&int3_nb);
> -}
> -
> -arch_initcall(int3_init);
> /*
> * Cross-modifying kernel text with stop_machine().
> * This code originally comes from immediate value.
> diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
> index 772e2a8..2694486 100644
> --- a/arch/x86/kernel/traps.c
> +++ b/arch/x86/kernel/traps.c
> @@ -58,6 +58,7 @@
> #include <asm/mce.h>
> #include <asm/fixmap.h>
> #include <asm/mach_traps.h>
> +#include <asm/alternative.h>
>
> #ifdef CONFIG_X86_64
> #include <asm/x86_init.h>
> @@ -324,6 +325,9 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co
> ftrace_int3_handler(regs))
> return;
> #endif
> + if (poke_int3_handler(regs))
> + return;
> +
> prev_state = exception_enter();
> #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
> if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
> diff --git a/kernel/kprobes.c b/kernel/kprobes.c
> index d6db7bd..bddf3b2 100644
> --- a/kernel/kprobes.c
> +++ b/kernel/kprobes.c
> @@ -1709,7 +1709,7 @@ EXPORT_SYMBOL_GPL(unregister_kprobes);
>
> static struct notifier_block kprobe_exceptions_nb = {
> .notifier_call = kprobe_exceptions_notify,
> - .priority = 0x7ffffff0 /* High priority, but not first. */
> + .priority = 0x7fffffff /* we need to be notified first */
> };
>
> unsigned long __weak arch_deref_entry_point(void *entry)
>
--
Masami HIRAMATSU
IT Management Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@hitachi.com
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier
2013-07-22 11:14 ` [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier Jiri Kosina
2013-07-22 11:24 ` Masami Hiramatsu
@ 2013-07-22 20:53 ` H. Peter Anvin
2013-07-22 21:00 ` Jiri Kosina
1 sibling, 1 reply; 20+ messages in thread
From: H. Peter Anvin @ 2013-07-22 20:53 UTC (permalink / raw)
To: Jiri Kosina
Cc: linux-kernel, Fengguang Wu, Steven Rostedt, Masami Hiramatsu, x86
Hi Jiri,
What is the baseline for this patch?
-hpa
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier
2013-07-22 20:53 ` H. Peter Anvin
@ 2013-07-22 21:00 ` Jiri Kosina
2013-07-23 1:24 ` Masami Hiramatsu
0 siblings, 1 reply; 20+ messages in thread
From: Jiri Kosina @ 2013-07-22 21:00 UTC (permalink / raw)
To: H. Peter Anvin
Cc: linux-kernel, Fengguang Wu, Steven Rostedt, Masami Hiramatsu, x86
On Mon, 22 Jul 2013, H. Peter Anvin wrote:
> What is the baseline for this patch?
Hi!
it's x86/jumplabel branch, as a followup to commit
fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based instruction
patching") sitting there.
This branch however seems to be broken by Ingo's mismerge; this e-mail
from earlier today:
https://lkml.org/lkml/2013/7/22/147
implied that he fixed this ("all is fine"), however x86/jumplabel still
contains just 3/3 of Masami's series, and therefore is broken; 3/3 is not
enough, it needs also
kprobes/x86: Remove an incorrect comment about int3 in NMI/MCE
kprobes/x86: Use text_poke_bp() instead of text_poke_smp*()
included or
kprobes/x86: Remove unused text_poke_smp() and text_poke_smp_batch() functions
dropped to be in consistent state again.
I pinged Ingo about this:
https://lkml.org/lkml/2013/7/22/281
but the branch still seems to be in an odd state, containing last patch of
Masami's series.
Thanks in advance for fixing this and applying mi fix as well,
--
Jiri Kosina
SUSE Labs
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: Re: [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier
2013-07-22 21:00 ` Jiri Kosina
@ 2013-07-23 1:24 ` Masami Hiramatsu
2013-07-23 7:45 ` Ingo Molnar
0 siblings, 1 reply; 20+ messages in thread
From: Masami Hiramatsu @ 2013-07-23 1:24 UTC (permalink / raw)
To: Jiri Kosina
Cc: H. Peter Anvin, linux-kernel, Fengguang Wu, Steven Rostedt, x86
(2013/07/23 6:00), Jiri Kosina wrote:
> On Mon, 22 Jul 2013, H. Peter Anvin wrote:
>
>> What is the baseline for this patch?
>
> Hi!
>
> it's x86/jumplabel branch, as a followup to commit
> fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based instruction
> patching") sitting there.
AFAICS, tip/master already merged Jiri's works on tip/x86/jumplabel.
Thus both branches need this. (especially, since this is actual
bugfix, it should go into tip/master.)
> This branch however seems to be broken by Ingo's mismerge; this e-mail
> from earlier today:
>
> https://lkml.org/lkml/2013/7/22/147
>
> implied that he fixed this ("all is fine"), however x86/jumplabel still
> contains just 3/3 of Masami's series, and therefore is broken; 3/3 is not
> enough, it needs also
>
> kprobes/x86: Remove an incorrect comment about int3 in NMI/MCE
> kprobes/x86: Use text_poke_bp() instead of text_poke_smp*()
>
> included or
>
> kprobes/x86: Remove unused text_poke_smp() and text_poke_smp_batch() functions
>
> dropped to be in consistent state again.
I hope to pull entire of this series in :)
>
> I pinged Ingo about this:
>
> https://lkml.org/lkml/2013/7/22/281
>
> but the branch still seems to be in an odd state, containing last patch of
> Masami's series.
>
> Thanks in advance for fixing this and applying mi fix as well,
>
Thanks!
--
Masami HIRAMATSU
IT Management Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@hitachi.com
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: Re: [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier
2013-07-23 1:24 ` Masami Hiramatsu
@ 2013-07-23 7:45 ` Ingo Molnar
2013-07-23 8:09 ` Jiri Kosina
0 siblings, 1 reply; 20+ messages in thread
From: Ingo Molnar @ 2013-07-23 7:45 UTC (permalink / raw)
To: Masami Hiramatsu
Cc: Jiri Kosina, H. Peter Anvin, linux-kernel, Fengguang Wu,
Steven Rostedt, x86
* Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> wrote:
> (2013/07/23 6:00), Jiri Kosina wrote:
> > On Mon, 22 Jul 2013, H. Peter Anvin wrote:
> >
> >> What is the baseline for this patch?
> >
> > Hi!
> >
> > it's x86/jumplabel branch, as a followup to commit
> > fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based instruction
> > patching") sitting there.
>
> AFAICS, tip/master already merged Jiri's works on tip/x86/jumplabel.
> Thus both branches need this. (especially, since this is actual
> bugfix, it should go into tip/master.)
I resolved it yesterday by keeping the kprobes patches in perf/core - just
forgot to push it all out.
I've pushed it out now, so perf/core should be a baseline: it merges in
x86/jumplabel and then applies the kprobes patches (historically in
perf/core).
Thanks,
Ingo
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: Re: [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier
2013-07-23 7:45 ` Ingo Molnar
@ 2013-07-23 8:09 ` Jiri Kosina
2013-07-24 3:55 ` [tip:perf/core] kprobes/x86: Call out into INT3 " tip-bot for Jiri Kosina
0 siblings, 1 reply; 20+ messages in thread
From: Jiri Kosina @ 2013-07-23 8:09 UTC (permalink / raw)
To: Ingo Molnar
Cc: Masami Hiramatsu, H. Peter Anvin, linux-kernel, Fengguang Wu,
Steven Rostedt, x86
On Tue, 23 Jul 2013, Ingo Molnar wrote:
> > > it's x86/jumplabel branch, as a followup to commit
> > > fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based instruction
> > > patching") sitting there.
> >
> > AFAICS, tip/master already merged Jiri's works on tip/x86/jumplabel.
> > Thus both branches need this. (especially, since this is actual
> > bugfix, it should go into tip/master.)
>
> I resolved it yesterday by keeping the kprobes patches in perf/core - just
> forgot to push it all out.
>
> I've pushed it out now, so perf/core should be a baseline: it merges in
> x86/jumplabel and then applies the kprobes patches (historically in
> perf/core).
Ok, thanks Ingo. Rebased fix below.
From: Jiri Kosina <jkosina@suse.cz>
Subject: [PATCH] x86: call out into int3 handler directly instead of using notifier
In fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based instruction
patching"), the mechanism that was introduced for notifying alternatives
code from int3 exception handler that and exception occured was
die_notifier.
This is however problematic, as early code might be using jump labels even
before the notifier registration has been performed, which will then lead
to an oops due to unhandled exception. One of such occurences has been
encountered by Fengguang:
int3: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.11.0-rc1-01429-g04bf576 #8
task: ffff88000da1b040 ti: ffff88000da1c000 task.ti: ffff88000da1c000
RIP: 0010:[<ffffffff811098cc>] [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
RSP: 0000:ffff88000dd03f10 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffff88000dd12940 RCX: ffffffff81769c40
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff88000dd03f28 R08: ffffffff8176a8c0 R09: 0000000000000002
R10: ffffffff810ff484 R11: ffff88000dd129e8 R12: ffff88000dbc90c0
R13: ffff88000dbc90c0 R14: ffff88000da1dfd8 R15: ffff88000da1dfd8
FS: 0000000000000000(0000) GS:ffff88000dd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000000ffffffff CR3: 0000000001c88000 CR4: 00000000000006e0
Stack:
ffff88000dd12940 ffff88000dbc90c0 ffff88000da1dfd8 ffff88000dd03f48
ffffffff81109e2b ffff88000dd12940 0000000000000000 ffff88000dd03f68
ffffffff81109e9e 0000000000000000 0000000000012940 ffff88000dd03f98
Call Trace:
<IRQ>
[<ffffffff81109e2b>] ttwu_do_activate.constprop.56+0x6d/0x79
[<ffffffff81109e9e>] sched_ttwu_pending+0x67/0x84
[<ffffffff8110c845>] scheduler_ipi+0x15a/0x2b0
[<ffffffff8104dfb4>] smp_reschedule_interrupt+0x38/0x41
[<ffffffff8173bf5d>] reschedule_interrupt+0x6d/0x80
<EOI>
[<ffffffff810ff484>] ? __atomic_notifier_call_chain+0x5/0xc1
[<ffffffff8105cc30>] ? native_safe_halt+0xd/0x16
[<ffffffff81015f10>] default_idle+0x147/0x282
[<ffffffff81017026>] arch_cpu_idle+0x3d/0x5d
[<ffffffff81127d6a>] cpu_idle_loop+0x46d/0x5db
[<ffffffff81127f5c>] cpu_startup_entry+0x84/0x84
[<ffffffff8104f4f8>] start_secondary+0x3c8/0x3d5
Code: 5c 5d c3 e8 d7 0f 63 00 55 48 ff 05 1f 5d 1e 01 48 89 e5 41 55 49 89 f5 41 54 53 48 89 fb e8 8d fe ff ff 48
01 cc <1f> 44 00 00 31 c0 eb 0c 48 ff 05 05 5d 1e 01 b8 01 00 00 00 48
RIP [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
RSP <ffff88000dd03f10>
---[ end trace 0d3288a047152a17 ]---
Fix this by directly calling poke_int3_handler() from the int3 exception
handler (analogically to what ftrace has been doing already), instead of
relying on notifier, registration of which might not have yet been
finalized by the time of the first trap.
Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
arch/x86/include/asm/alternative.h | 2 ++
arch/x86/kernel/alternative.c | 31 ++++++++-----------------------
arch/x86/kernel/traps.c | 4 ++++
kernel/kprobes.c | 2 +-
4 files changed, 15 insertions(+), 24 deletions(-)
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 4daf8c5..0a3f9c9 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -5,6 +5,7 @@
#include <linux/stddef.h>
#include <linux/stringify.h>
#include <asm/asm.h>
+#include <asm/ptrace.h>
/*
* Alternative inline assembly for SMP.
@@ -224,6 +225,7 @@ extern void *text_poke_early(void *addr, const void *opcode, size_t len);
* inconsistent instruction while you patch.
*/
extern void *text_poke(void *addr, const void *opcode, size_t len);
+extern int poke_int3_handler(struct pt_regs *regs);
extern void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler);
#endif /* _ASM_X86_ALTERNATIVE_H */
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 5d8782e..15e8563 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -605,26 +605,24 @@ static void do_sync_core(void *info)
static bool bp_patching_in_progress;
static void *bp_int3_handler, *bp_int3_addr;
-static int int3_notify(struct notifier_block *self, unsigned long val, void *data)
+int poke_int3_handler(struct pt_regs *regs)
{
- struct die_args *args = data;
-
/* bp_patching_in_progress */
smp_rmb();
if (likely(!bp_patching_in_progress))
- return NOTIFY_DONE;
+ return 0;
- /* we are not interested in non-int3 faults and ring > 0 faults */
- if (val != DIE_INT3 || !args->regs || user_mode_vm(args->regs)
- || args->regs->ip != (unsigned long)bp_int3_addr)
- return NOTIFY_DONE;
+ if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
+ return 0;
/* set up the specified breakpoint handler */
- args->regs->ip = (unsigned long) bp_int3_handler;
+ regs->ip = (unsigned long) bp_int3_handler;
+
+ return 1;
- return NOTIFY_STOP;
}
+
/**
* text_poke_bp() -- update instructions on live kernel on SMP
* @addr: address to patch
@@ -689,16 +687,3 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
return addr;
}
-/* this one needs to run before anything else handles it as a
- * regular exception */
-static struct notifier_block int3_nb = {
- .priority = 0x7fffffff,
- .notifier_call = int3_notify
-};
-
-static int __init int3_init(void)
-{
- return register_die_notifier(&int3_nb);
-}
-
-arch_initcall(int3_init);
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 1b23a1c..8c8093b 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -58,6 +58,7 @@
#include <asm/mce.h>
#include <asm/fixmap.h>
#include <asm/mach_traps.h>
+#include <asm/alternative.h>
#ifdef CONFIG_X86_64
#include <asm/x86_init.h>
@@ -327,6 +328,9 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co
ftrace_int3_handler(regs))
return;
#endif
+ if (poke_int3_handler(regs))
+ return;
+
prev_state = exception_enter();
#ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index b58b490..6e33498 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1709,7 +1709,7 @@ EXPORT_SYMBOL_GPL(unregister_kprobes);
static struct notifier_block kprobe_exceptions_nb = {
.notifier_call = kprobe_exceptions_notify,
- .priority = 0x7ffffff0 /* High priority, but not first. */
+ .priority = 0x7fffffff /* we need to be notified first */
};
unsigned long __weak arch_deref_entry_point(void *entry)
--
Jiri Kosina
SUSE Labs
^ permalink raw reply related [flat|nested] 20+ messages in thread
* [tip:perf/core] kprobes/x86: Call out into INT3 handler directly instead of using notifier
2013-07-23 8:09 ` Jiri Kosina
@ 2013-07-24 3:55 ` tip-bot for Jiri Kosina
2013-07-24 14:33 ` H. Peter Anvin
0 siblings, 1 reply; 20+ messages in thread
From: tip-bot for Jiri Kosina @ 2013-07-24 3:55 UTC (permalink / raw)
To: linux-tip-commits
Cc: linux-kernel, hpa, mingo, jkosina, masami.hiramatsu.pt, rostedt,
tglx, fengguang.wu, hpa
Commit-ID: 17f41571bb2c4a398785452ac2718a6c5d77180e
Gitweb: http://git.kernel.org/tip/17f41571bb2c4a398785452ac2718a6c5d77180e
Author: Jiri Kosina <jkosina@suse.cz>
AuthorDate: Tue, 23 Jul 2013 10:09:28 +0200
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 23 Jul 2013 10:12:57 +0200
kprobes/x86: Call out into INT3 handler directly instead of using notifier
In fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based
instruction patching"), the mechanism that was introduced for
notifying alternatives code from int3 exception handler that and
exception occured was die_notifier.
This is however problematic, as early code might be using jump
labels even before the notifier registration has been performed,
which will then lead to an oops due to unhandled exception. One
of such occurences has been encountered by Fengguang:
int3: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.11.0-rc1-01429-g04bf576 #8
task: ffff88000da1b040 ti: ffff88000da1c000 task.ti: ffff88000da1c000
RIP: 0010:[<ffffffff811098cc>] [<ffffffff811098cc>] ttwu_do_wakeup+0x28/0x225
RSP: 0000:ffff88000dd03f10 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffff88000dd12940 RCX: ffffffff81769c40
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff88000dd03f28 R08: ffffffff8176a8c0 R09: 0000000000000002
R10: ffffffff810ff484 R11: ffff88000dd129e8 R12: ffff88000dbc90c0
R13: ffff88000dbc90c0 R14: ffff88000da1dfd8 R15: ffff88000da1dfd8
FS: 0000000000000000(0000) GS:ffff88000dd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000000ffffffff CR3: 0000000001c88000 CR4: 00000000000006e0
Stack:
ffff88000dd12940 ffff88000dbc90c0 ffff88000da1dfd8 ffff88000dd03f48
ffffffff81109e2b ffff88000dd12940 0000000000000000 ffff88000dd03f68
ffffffff81109e9e 0000000000000000 0000000000012940 ffff88000dd03f98
Call Trace:
<IRQ>
[<ffffffff81109e2b>] ttwu_do_activate.constprop.56+0x6d/0x79
[<ffffffff81109e9e>] sched_ttwu_pending+0x67/0x84
[<ffffffff8110c845>] scheduler_ipi+0x15a/0x2b0
[<ffffffff8104dfb4>] smp_reschedule_interrupt+0x38/0x41
[<ffffffff8173bf5d>] reschedule_interrupt+0x6d/0x80
<EOI>
[<ffffffff810ff484>] ? __atomic_notifier_call_chain+0x5/0xc1
[<ffffffff8105cc30>] ? native_safe_halt+0xd/0x16
[<ffffffff81015f10>] default_idle+0x147/0x282
[<ffffffff81017026>] arch_cpu_idle+0x3d/0x5d
[<ffffffff81127d6a>] cpu_idle_loop+0x46d/0x5db
[<ffffffff81127f5c>] cpu_startup_entry+0x84/0x84
[<ffffffff8104f4f8>] start_secondary+0x3c8/0x3d5
[...]
Fix this by directly calling poke_int3_handler() from the int3
exception handler (analogically to what ftrace has been doing
already), instead of relying on notifier, registration of which
might not have yet been finalized by the time of the first trap.
Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/alpine.LNX.2.00.1307231007490.14024@pobox.suse.cz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/include/asm/alternative.h | 2 ++
arch/x86/kernel/alternative.c | 31 ++++++++-----------------------
arch/x86/kernel/traps.c | 4 ++++
kernel/kprobes.c | 2 +-
4 files changed, 15 insertions(+), 24 deletions(-)
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 4daf8c5..0a3f9c9 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -5,6 +5,7 @@
#include <linux/stddef.h>
#include <linux/stringify.h>
#include <asm/asm.h>
+#include <asm/ptrace.h>
/*
* Alternative inline assembly for SMP.
@@ -224,6 +225,7 @@ extern void *text_poke_early(void *addr, const void *opcode, size_t len);
* inconsistent instruction while you patch.
*/
extern void *text_poke(void *addr, const void *opcode, size_t len);
+extern int poke_int3_handler(struct pt_regs *regs);
extern void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler);
#endif /* _ASM_X86_ALTERNATIVE_H */
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 5d8782e..15e8563 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -605,26 +605,24 @@ static void do_sync_core(void *info)
static bool bp_patching_in_progress;
static void *bp_int3_handler, *bp_int3_addr;
-static int int3_notify(struct notifier_block *self, unsigned long val, void *data)
+int poke_int3_handler(struct pt_regs *regs)
{
- struct die_args *args = data;
-
/* bp_patching_in_progress */
smp_rmb();
if (likely(!bp_patching_in_progress))
- return NOTIFY_DONE;
+ return 0;
- /* we are not interested in non-int3 faults and ring > 0 faults */
- if (val != DIE_INT3 || !args->regs || user_mode_vm(args->regs)
- || args->regs->ip != (unsigned long)bp_int3_addr)
- return NOTIFY_DONE;
+ if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
+ return 0;
/* set up the specified breakpoint handler */
- args->regs->ip = (unsigned long) bp_int3_handler;
+ regs->ip = (unsigned long) bp_int3_handler;
+
+ return 1;
- return NOTIFY_STOP;
}
+
/**
* text_poke_bp() -- update instructions on live kernel on SMP
* @addr: address to patch
@@ -689,16 +687,3 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
return addr;
}
-/* this one needs to run before anything else handles it as a
- * regular exception */
-static struct notifier_block int3_nb = {
- .priority = 0x7fffffff,
- .notifier_call = int3_notify
-};
-
-static int __init int3_init(void)
-{
- return register_die_notifier(&int3_nb);
-}
-
-arch_initcall(int3_init);
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 1b23a1c..8c8093b 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -58,6 +58,7 @@
#include <asm/mce.h>
#include <asm/fixmap.h>
#include <asm/mach_traps.h>
+#include <asm/alternative.h>
#ifdef CONFIG_X86_64
#include <asm/x86_init.h>
@@ -327,6 +328,9 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co
ftrace_int3_handler(regs))
return;
#endif
+ if (poke_int3_handler(regs))
+ return;
+
prev_state = exception_enter();
#ifdef CONFIG_KGDB_LOW_LEVEL_TRAP
if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP,
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index b58b490..6e33498 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1709,7 +1709,7 @@ EXPORT_SYMBOL_GPL(unregister_kprobes);
static struct notifier_block kprobe_exceptions_nb = {
.notifier_call = kprobe_exceptions_notify,
- .priority = 0x7ffffff0 /* High priority, but not first. */
+ .priority = 0x7fffffff /* we need to be notified first */
};
unsigned long __weak arch_deref_entry_point(void *entry)
^ permalink raw reply related [flat|nested] 20+ messages in thread
* Re: [tip:perf/core] kprobes/x86: Call out into INT3 handler directly instead of using notifier
2013-07-24 3:55 ` [tip:perf/core] kprobes/x86: Call out into INT3 " tip-bot for Jiri Kosina
@ 2013-07-24 14:33 ` H. Peter Anvin
2013-07-29 9:06 ` Jiri Kosina
0 siblings, 1 reply; 20+ messages in thread
From: H. Peter Anvin @ 2013-07-24 14:33 UTC (permalink / raw)
To: mingo, hpa, linux-kernel, jkosina, masami.hiramatsu.pt, rostedt,
tglx, hpa, fengguang.wu
Cc: tip-bot for Jiri Kosina, linux-tip-commits
On 07/23/2013 08:55 PM, tip-bot for Jiri Kosina wrote:
> Commit-ID: 17f41571bb2c4a398785452ac2718a6c5d77180e
> Gitweb: http://git.kernel.org/tip/17f41571bb2c4a398785452ac2718a6c5d77180e
> Author: Jiri Kosina <jkosina@suse.cz>
> AuthorDate: Tue, 23 Jul 2013 10:09:28 +0200
> Committer: Ingo Molnar <mingo@kernel.org>
> CommitDate: Tue, 23 Jul 2013 10:12:57 +0200
>
> kprobes/x86: Call out into INT3 handler directly instead of using notifier
>
> In fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based
> instruction patching"), the mechanism that was introduced for
> notifying alternatives code from int3 exception handler that and
> exception occured was die_notifier.
>
> This is however problematic, as early code might be using jump
> labels even before the notifier registration has been performed,
> which will then lead to an oops due to unhandled exception. One
> of such occurences has been encountered by Fengguang:
>
Please note that putting this patch in perf/core means x86/jumplabel is
completely nonfunctional by itself.
-hpa
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [tip:perf/core] kprobes/x86: Call out into INT3 handler directly instead of using notifier
2013-07-24 14:33 ` H. Peter Anvin
@ 2013-07-29 9:06 ` Jiri Kosina
2013-07-29 9:14 ` H. Peter Anvin
0 siblings, 1 reply; 20+ messages in thread
From: Jiri Kosina @ 2013-07-29 9:06 UTC (permalink / raw)
To: H. Peter Anvin
Cc: mingo, hpa, linux-kernel, masami.hiramatsu.pt, rostedt, tglx,
fengguang.wu, tip-bot for Jiri Kosina, linux-tip-commits
On Wed, 24 Jul 2013, H. Peter Anvin wrote:
> > Commit-ID: 17f41571bb2c4a398785452ac2718a6c5d77180e
> > Gitweb: http://git.kernel.org/tip/17f41571bb2c4a398785452ac2718a6c5d77180e
> > Author: Jiri Kosina <jkosina@suse.cz>
> > AuthorDate: Tue, 23 Jul 2013 10:09:28 +0200
> > Committer: Ingo Molnar <mingo@kernel.org>
> > CommitDate: Tue, 23 Jul 2013 10:12:57 +0200
> >
> > kprobes/x86: Call out into INT3 handler directly instead of using notifier
> >
> > In fd4363fff3d96 ("x86: Introduce int3 (breakpoint)-based
> > instruction patching"), the mechanism that was introduced for
> > notifying alternatives code from int3 exception handler that and
> > exception occured was die_notifier.
> >
> > This is however problematic, as early code might be using jump
> > labels even before the notifier registration has been performed,
> > which will then lead to an oops due to unhandled exception. One
> > of such occurences has been encountered by Fengguang:
> >
>
> Please note that putting this patch in perf/core means x86/jumplabel is
> completely nonfunctional by itself.
I'd like to point out that this is still the case ... TIA,
--
Jiri Kosina
SUSE Labs
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [tip:perf/core] kprobes/x86: Call out into INT3 handler directly instead of using notifier
2013-07-29 9:06 ` Jiri Kosina
@ 2013-07-29 9:14 ` H. Peter Anvin
2013-07-29 9:18 ` Jiri Kosina
0 siblings, 1 reply; 20+ messages in thread
From: H. Peter Anvin @ 2013-07-29 9:14 UTC (permalink / raw)
To: Jiri Kosina
Cc: H. Peter Anvin, mingo, linux-kernel, masami.hiramatsu.pt,
rostedt, tglx, fengguang.wu, tip-bot for Jiri Kosina,
linux-tip-commits
On 07/29/2013 02:06 AM, Jiri Kosina wrote:
>>
>> Please note that putting this patch in perf/core means x86/jumplabel is
>> completely nonfunctional by itself.
>
> I'd like to point out that this is still the case ... TIA,
>
What is?
-hpa
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [tip:perf/core] kprobes/x86: Call out into INT3 handler directly instead of using notifier
2013-07-29 9:14 ` H. Peter Anvin
@ 2013-07-29 9:18 ` Jiri Kosina
2013-07-29 9:23 ` H. Peter Anvin
0 siblings, 1 reply; 20+ messages in thread
From: Jiri Kosina @ 2013-07-29 9:18 UTC (permalink / raw)
To: H. Peter Anvin
Cc: H. Peter Anvin, mingo, linux-kernel, masami.hiramatsu.pt,
rostedt, tglx, fengguang.wu, tip-bot for Jiri Kosina,
linux-tip-commits
On Mon, 29 Jul 2013, H. Peter Anvin wrote:
> >> Please note that putting this patch in perf/core means x86/jumplabel is
> >> completely nonfunctional by itself.
> >
> > I'd like to point out that this is still the case ... TIA,
>
> What is?
17f41571bb2c4a is only in perf/core, x86/jumplabel is missing it. I am not
sure about the tip workflow, but as it is now, x86/jumplabel is buggy, so
it should be either fixed (by pulling 17f41571bb2c4a from perf/core) or
removed, or somehow marked as broken ... ?
Not a big deal for me as long as perf/core is fine, but as you were
mentioning it ...
Thanks,
--
Jiri Kosina
SUSE Labs
^ permalink raw reply [flat|nested] 20+ messages in thread
* Re: [tip:perf/core] kprobes/x86: Call out into INT3 handler directly instead of using notifier
2013-07-29 9:18 ` Jiri Kosina
@ 2013-07-29 9:23 ` H. Peter Anvin
0 siblings, 0 replies; 20+ messages in thread
From: H. Peter Anvin @ 2013-07-29 9:23 UTC (permalink / raw)
To: Jiri Kosina
Cc: H. Peter Anvin, mingo, linux-kernel, masami.hiramatsu.pt,
rostedt, tglx, fengguang.wu, tip-bot for Jiri Kosina,
linux-tip-commits
On 07/29/2013 02:18 AM, Jiri Kosina wrote:
> On Mon, 29 Jul 2013, H. Peter Anvin wrote:
>
>>>> Please note that putting this patch in perf/core means x86/jumplabel is
>>>> completely nonfunctional by itself.
>>>
>>> I'd like to point out that this is still the case ... TIA,
>>
>> What is?
>
> 17f41571bb2c4a is only in perf/core, x86/jumplabel is missing it. I am not
> sure about the tip workflow, but as it is now, x86/jumplabel is buggy, so
> it should be either fixed (by pulling 17f41571bb2c4a from perf/core) or
> removed, or somehow marked as broken ... ?
>
> Not a big deal for me as long as perf/core is fine, but as you were
> mentioning it ...
>
Yes, we know. In effect, x86/jumplabel not really a working standalone
topic branch at the moment. It is probably not worth fixing it for this
kernel cycle, as the number of patches involved is relatively small, but
it is perhaps a bit unfortunate.
-hpa
^ permalink raw reply [flat|nested] 20+ messages in thread
end of thread, other threads:[~2013-07-29 9:24 UTC | newest]
Thread overview: 20+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-07-20 13:12 [x86] Kernel panic - not syncing: Fatal exception in interrupt Fengguang Wu
2013-07-21 0:23 ` H. Peter Anvin
2013-07-21 8:30 ` Jiri Kosina
2013-07-21 16:21 ` Fengguang Wu
2013-07-21 17:21 ` H. Peter Anvin
2013-07-22 11:18 ` Jiri Kosina
2013-07-22 1:07 ` Fengguang Wu
2013-07-22 11:14 ` [PATCH -tip/x86/jumplabel] x86: call out into int3 handler directly instead of using notifier Jiri Kosina
2013-07-22 11:24 ` Masami Hiramatsu
2013-07-22 20:53 ` H. Peter Anvin
2013-07-22 21:00 ` Jiri Kosina
2013-07-23 1:24 ` Masami Hiramatsu
2013-07-23 7:45 ` Ingo Molnar
2013-07-23 8:09 ` Jiri Kosina
2013-07-24 3:55 ` [tip:perf/core] kprobes/x86: Call out into INT3 " tip-bot for Jiri Kosina
2013-07-24 14:33 ` H. Peter Anvin
2013-07-29 9:06 ` Jiri Kosina
2013-07-29 9:14 ` H. Peter Anvin
2013-07-29 9:18 ` Jiri Kosina
2013-07-29 9:23 ` H. Peter Anvin
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