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Date: Fri, 30 Dec 2016 12:08:40 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Cao Shufeng <caosf.fnst@...fujitsu.com>
Cc: linux-kernel@...r.kernel.org,
containers@...ts.linux-foundation.org, ebiederm@...ssion.com,
mguzik@...hat.com, kamezawa.hiroyu@...fujitsu.com,
stgraber@...ntu.com, avagin@...il.com, zhaolei@...fujitsu.com,
mashimiao.fnst@...fujitsu.com, caosf.fnst@...fujitsu.com,
lkp@...org
Subject: 1f6e761378: RIP:call_usermodehelper_exec_work
FYI, we noticed the following commit:
commit: 1f6e761378c2e6dcf1b12ee7d54a0ef799c2b32e ("Make call_usermodehelper_exec possible to set namespaces")
url: https://github.com/0day-ci/linux/commits/Cao-Shufeng/Make-core_pattern-support-namespace/20161207-024824
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -smp 2 -m 320M
caused below changes:
+-----------------------------------------------------------------------------+------------+------------+
| | bc3913a537 | 1f6e761378 |
+-----------------------------------------------------------------------------+------------+------------+
| boot_successes | 484 | 81 |
| boot_failures | 1513 | 37 |
| invoked_oom-killer:gfp_mask=0x | 1513 | |
| Mem-Info | 1513 | |
| BUG:unable_to_handle_kernel | 56 | |
| Oops | 56 | |
| RIP:copy_process | 42 | |
| Kernel_panic-not_syncing:Fatal_exception | 108 | 36 |
| general_protection_fault:#[##]SMP | 61 | 36 |
| RIP:__lock_acquire | 39 | |
| RIP:radix_tree_load_root | 4 | |
| RIP:__remove_shared_vm_struct | 28 | |
| Out_of_memory:Kill_process | 2 | |
| BUG_filp(Tainted:G_D):Poison_overwritten | 2 | |
| INFO:#-#.First_byte#instead_of | 3 | |
| INFO:Allocated_in_get_empty_filp_age=#cpu=#pid= | 3 | |
| INFO:Freed_in_file_free_rcu_age=#cpu=#pid= | 3 | |
| INFO:Slab#objects=#used=#fp=0x(null)flags= | 3 | |
| INFO:Object#@...set=#fp=0x(null) | 1 | |
| INFO:Object#@...set=#fp= | 2 | |
| BUG_filp(Not_tainted):Poison_overwritten | 1 | |
| RIP:down_write | 1 | |
| page_allocation_failure:order:#,mode:#(GFP_ATOMIC|__GFP_COMP|__GFP_NOTRACK) | 3 | |
| RIP:call_usermodehelper_exec_work | 0 | 36 |
| BUG:kernel_reboot-without-warning_in_test_stage | 0 | 1 |
+-----------------------------------------------------------------------------+------------+------------+
[ 1.016008] ACPI: bus type PCI registered
[ 1.018564] dca service started, version 1.12.1
[ 1.020508] PCI: Using configuration type 1 for base access
[ 1.119145] general protection fault: 0000 [#1] SMP
[ 1.120926] Modules linked in:
[ 1.122422] CPU: 1 PID: 18 Comm: kworker/u4:1 Not tainted 4.9.0-rc8-00052-g1f6e761 #82
[ 1.125729] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 1.129199] Workqueue: events_unbound call_usermodehelper_exec_work
[ 1.131284] task: ffff880011e48040 task.stack: ffffc90000160000
[ 1.133244] RIP: 0010:[<ffffffff810bac29>] [<ffffffff810bac29>] call_usermodehelper_exec_work+0xad/0xc6
[ 1.136621] RSP: 0000:ffffc90000163d60 EFLAGS: 00010202
[ 1.138372] RAX: 6b6b6b6b6b6b6b6b RBX: ffff88001185a848 RCX: ffffc90000163ba8
[ 1.140474] RDX: 0000000000000001 RSI: ffff880011e488d8 RDI: ffff88001185a848
[ 1.143019] RBP: ffffc90000163d78 R08: 0000000086f52214 R09: 0000000000000001
[ 1.145686] R10: ffffc90000163c28 R11: ffffffff810ccb2e R12: 0000000000000197
[ 1.148246] R13: ffff880012425d28 R14: 0000000000000001 R15: ffff880011d88100
[ 1.150764] FS: 0000000000000000(0000) GS:ffff880012c00000(0000) knlGS:0000000000000000
[ 1.152975] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.154366] CR2: ffffc9000015c000 CR3: 000000000241e000 CR4: 00000000000006e0
[ 1.155924] Stack:
[ 1.156662] 0000000000000000 ffff880011e176b8 ffff88001185a848 ffffc90000163de8
[ 1.158963] ffffffff810be601 0000000000000000 ffffffff82993458 ffffffff830d93e0
[ 1.161377] 0000000000000000 ffffffff82208472 0000000000000001 0000000000000000
[ 1.163700] Call Trace:
[ 1.164662] [<ffffffff810be601>] process_one_work+0x2ef/0x63d
[ 1.165984] [<ffffffff810bf4d8>] worker_thread+0x24f/0x385
[ 1.167336] [<ffffffff810bf289>] ? rescuer_thread+0x2bd/0x2bd
[ 1.168621] [<ffffffff810c4496>] kthread+0xfc/0x104
[ 1.169944] [<ffffffff810c439a>] ? kthread_park+0x5a/0x5a
[ 1.171319] [<ffffffff81d17f2a>] ret_from_fork+0x2a/0x40
[ 1.172527] Code: df ff d0 eb 31 ba 11 80 00 00 48 89 de 48 c7 c7 7b a5 0b 81 e8 f2 88 fe ff 41 89 c4 48 8b 83 80 00 00 00 48 85 c0 74 05 48 89 df <ff> d0 45 85 e4 79 0c 44 89 63 74 48 89 df e8 1a f9 ff ff 58 5b
[ 1.181733] RIP [<ffffffff810bac29>] call_usermodehelper_exec_work+0xad/0xc6
[ 1.183438] RSP <ffffc90000163d60>
[ 1.184480] ---[ end trace e790f2b079f311f6 ]---
[ 1.185654] Kernel panic - not syncing: Fatal exception
Elapsed time: 10
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Kernel Test Robot
View attachment "config-4.9.0-rc8-00052-g1f6e761" of type "text/plain" (112341 bytes)
View attachment "job-script" of type "text/plain" (3963 bytes)
Download attachment "dmesg.xz" of type "application/octet-stream" (6948 bytes)
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