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Date: Fri, 08 Jan 2016 10:59:43 +0800
From: kernel test robot <ying.huang@...ux.intel.com>
TO: Michal Hocko <mhocko@...e.com>
CC: Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [lkp] [mm, vmstat] 373ccbe592: BUG: unable to handle kernel
FYI, we noticed the below changes on
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 373ccbe5927034b55bdc80b0f8b54d6e13fe8d12 ("mm, vmstat: allow WQ concurrency to discover memory reclaim doesn't make any progress")
+------------------------------------------+------------+------------+
| | 475a2f905d | 373ccbe592 |
+------------------------------------------+------------+------------+
| boot_successes | 303 | 265 |
| boot_failures | 0 | 39 |
| BUG:unable_to_handle_kernel | 0 | 39 |
| Oops | 0 | 39 |
| EIP_is_at__queue_work | 0 | 39 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 39 |
| backtrace:vmstat_shepherd | 0 | 39 |
+------------------------------------------+------------+------------+
[ 3.067186] audit: initializing netlink subsys (disabled)
[ 3.068611] audit: type=2000 audit(1452176226.358:1): initialized
[ 3.068611] audit: type=2000 audit(1452176226.358:1): initialized
[ 3.870718] BUG: unable to handle kernel
[ 3.870718] BUG: unable to handle kernel NULL pointer dereferenceNULL pointer dereference at 00000100
at 00000100
[ 3.872615] IP:
[ 3.872615] IP: [<c1074df6>] __queue_work+0x26/0x390
[<c1074df6>] __queue_work+0x26/0x390
[ 3.873758] *pdpt = 0000000000000000
[ 3.873758] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 *pde = f000ff53f000ff53
[ 3.875096] Oops: 0000 [#1]
[ 3.875096] Oops: 0000 [#1] PREEMPT PREEMPT SMP SMP
[ 3.876130] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.4.0-rc4-00139-g373ccbe #1
[ 3.876130] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.4.0-rc4-00139-g373ccbe #1
[ 3.878135] Workqueue: events vmstat_shepherd
[ 3.878135] Workqueue: events vmstat_shepherd
[ 3.879207] task: cb684600 ti: cb7ba000 task.ti: cb7ba000
[ 3.879207] task: cb684600 ti: cb7ba000 task.ti: cb7ba000
[ 3.880445] EIP: 0060:[<c1074df6>] EFLAGS: 00010046 CPU: 0
[ 3.880445] EIP: 0060:[<c1074df6>] EFLAGS: 00010046 CPU: 0
[ 3.881704] EIP is at __queue_work+0x26/0x390
[ 3.881704] EIP is at __queue_work+0x26/0x390
[ 3.882823] EAX: 00000046 EBX: cbb37800 ECX: cbb37800 EDX: 00000000
[ 3.882823] EAX: 00000046 EBX: cbb37800 ECX: cbb37800 EDX: 00000000
[ 3.884457] ESI: 00000000 EDI: 00000000 EBP: cb7bbe68 ESP: cb7bbe38
[ 3.884457] ESI: 00000000 EDI: 00000000 EBP: cb7bbe68 ESP: cb7bbe38
[ 3.886005] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 3.886005] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 3.887229] CR0: 8005003b CR2: 00000100 CR3: 01fd5000 CR4: 000006b0
[ 3.887229] CR0: 8005003b CR2: 00000100 CR3: 01fd5000 CR4: 000006b0
[ 3.888663] Stack:
[ 3.888663] Stack:
[ 3.889199] c1e5fccc
[ 3.889199] c1e5fccc 00000000 00000000 c1a381dd c1a381dd cb684acc cb684acc c1e5fccc c1e5fccc 00000246 00000246 c1e5fccc c1e5fccc 00000000 00000000
[ 3.891351] 00000246
[ 3.891351] 00000246 00000000 00000000 00000000 00000000 cbb37820 cbb37820 cb7bbe80 cb7bbe80 c1075221 c1075221 ffffffff ffffffff 00000246 00000246
[ 3.893339] 00000000
[ 3.893339] 00000000 00000000 00000000 cb7bbe98 cb7bbe98 c10764c6 c10764c6 00000000 00000000 c1f1d400 c1f1d400 00000000 00000000 c1fc3800 c1fc3800
[ 3.895204] Call Trace:
[ 3.895204] Call Trace:
[ 3.895854] [<c1a381dd>] ? mutex_unlock+0xd/0x10
[ 3.895854] [<c1a381dd>] ? mutex_unlock+0xd/0x10
[ 3.897120] [<c1075221>] __queue_delayed_work+0xa1/0x160
[ 3.897120] [<c1075221>] __queue_delayed_work+0xa1/0x160
[ 3.898530] [<c10764c6>] queue_delayed_work_on+0x36/0x60
[ 3.898530] [<c10764c6>] queue_delayed_work_on+0x36/0x60
[ 3.899790] [<c11494bd>] vmstat_shepherd+0xad/0xf0
[ 3.899790] [<c11494bd>] vmstat_shepherd+0xad/0xf0
[ 3.900899] [<c1075a7a>] process_one_work+0x1aa/0x4c0
[ 3.900899] [<c1075a7a>] process_one_work+0x1aa/0x4c0
[ 3.902093] [<c10759e2>] ? process_one_work+0x112/0x4c0
[ 3.902093] [<c10759e2>] ? process_one_work+0x112/0x4c0
[ 3.903520] [<c10ac31e>] ? do_raw_spin_lock+0xe/0x150
[ 3.903520] [<c10ac31e>] ? do_raw_spin_lock+0xe/0x150
[ 3.904853] [<c1075dd1>] worker_thread+0x41/0x440
[ 3.904853] [<c1075dd1>] worker_thread+0x41/0x440
[ 3.906023] [<c1075d90>] ? process_one_work+0x4c0/0x4c0
[ 3.906023] [<c1075d90>] ? process_one_work+0x4c0/0x4c0
[ 3.907242] [<c107b7c0>] kthread+0xb0/0xd0
[ 3.907242] [<c107b7c0>] kthread+0xb0/0xd0
[ 3.908188] [<c1a3c651>] ret_from_kernel_thread+0x21/0x40
[ 3.908188] [<c1a3c651>] ret_from_kernel_thread+0x21/0x40
[ 3.909601] [<c107b710>] ? __kthread_parkme+0x80/0x80
[ 3.909601] [<c107b710>] ? __kthread_parkme+0x80/0x80
[ 3.910941] Code:
[ 3.910941] Code: 27 27 00 00 00 00 00 00 00 00 55 55 89 89 e5 e5 57 57 56 56 53 53 83 83 ec ec 24 24 e8 e8 82 82 87 87 9c 9c 00 00 89 89 c7 c7 89 89 d6 d6 89 89 cb cb 89 89 45 45 ec ec 9c 9c 58 58 8d 8d 74 74 26 26 00 00 f6 f6 c4 c4 02 02 0f 0f 85 85 ca ca 02 02 00 00 00 00 <8b> <8b> 86 86 00 00 01 01 00 00 00 00 a9 a9 00 00 00 00 01 01 00 00 0f 0f 85 85 83 83 02 02 00 00 00 00 69 69 d3 d3 01 01 00 00
[ 3.916531] EIP: [<c1074df6>]
[ 3.916531] EIP: [<c1074df6>] __queue_work+0x26/0x390__queue_work+0x26/0x390 SS:ESP 0068:cb7bbe38
SS:ESP 0068:cb7bbe38
[ 3.918387] CR2: 0000000000000100
[ 3.918387] CR2: 0000000000000100
[ 3.919198] ---[ end trace 2094b665a03d1cdc ]---
[ 3.919198] ---[ end trace 2094b665a03d1cdc ]---
[ 3.920255] Kernel panic - not syncing: Fatal exception
[ 3.920255] Kernel panic - not syncing: Fatal exception
[ 3.921470] Kernel Offset: disabled
[ 3.921470] Kernel Offset: disabled
Thanks,
Ying Huang
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