linux-kernel - [LKP] [break workqueues.] Kernel panic - not syncing: Out of memory and no killable processes...

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Message-ID: <1418612364.5745.158.camel@intel.com>
Date:	Mon, 15 Dec 2014 10:59:24 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	NeilBrown <neilb@...e.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, LKP ML <lkp@...org>
Subject: [LKP] [break workqueues.] Kernel panic - not syncing: Out of memory
 and no killable processes...

FYI, we noticed the below changes on

git://neil.brown.name/md devel
commit f245ecf8db89574d5166dd11b73307f1a49f5d47 ("break workqueues.")

OOM during rcu-torture test.

+------------------------------------------------------------------+------------+------------+
|                                                                  | 9cf9a9d350 | f245ecf8db |
+------------------------------------------------------------------+------------+------------+
| boot_successes                                                   | 3          | 1          |
| boot_failures                                                    | 7          | 14         |
| BUG:kernel_boot_hang                                             | 4          |            |
| BUG:kernel_test_crashed                                          | 3          | 2          |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 0          | 12         |
| backtrace:do_fork                                                | 0          | 12         |
| backtrace:kthreadd                                               | 0          | 12         |
+------------------------------------------------------------------+------------+------------+


[  311.196109] rcu-torture: Reader Pipe:  8798848 0 0 0 0 0 0 0 0 0 0
[  311.615550] rcu-torture: Reader Batch:  8798848 0 0 0 0 0 0 0 0 0 0
[  312.001247] rcu-torture: Free-Block Circulation:  10612 10612 10611 10610 10609 10608 10607 10606 10605 10604 0
[  332.441518] kthreadd invoked oom-killer: gfp_mask=0x2040d0, order=1, oom_score_adj=0
[  333.238089] kthreadd cpuset=/ mems_allowed=0
[  333.643925] CPU: 0 PID: 2 Comm: kthreadd Not tainted 3.18.0-00298-g7245f33 #23
[  334.400530] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  334.784285]  d3464030 d3464030 d3467d48 c1e735f8 d3467d90 c10f49dc c2241570 d3464360
[  335.579982]  002040d0 00000001 00000000 00000000 00000000 c10f5328 00000000 00000000
[  336.371408]  00000246 00000001 00000246 d17b049c 00000001 002040d0 d3467dc8 c10f54f4
[  337.142708] Call Trace:
[  337.518532]  [<c1e735f8>] dump_stack+0x16/0x18
[  337.887899]  [<c10f49dc>] dump_header+0x6c/0x200
[  338.248028]  [<c10f5328>] ? out_of_memory+0x118/0x2f0
[  338.672466]  [<c10f54f4>] out_of_memory+0x2e4/0x2f0
[  339.096950]  [<c10f921e>] __alloc_pages_nodemask+0x87e/0x8c0
[  339.482974]  [<c112e70f>] cache_grow+0x9f/0x400
[  339.864183]  [<c112e63b>] kmem_cache_alloc+0x32b/0x360
[  340.234969]  [<c1073b1e>] ? copy_process+0xae/0x14b0
[  340.604363]  [<c108b8f0>] ? __kthread_parkme+0x60/0x60
[  340.967914]  [<c1073b1e>] copy_process+0xae/0x14b0
[  341.318814]  [<c1090160>] ? finish_task_switch+0x60/0xe0
[  341.636842]  [<c1e8ad6d>] ? _raw_spin_unlock_irq+0x1d/0x30
[  341.957631]  [<c1090160>] ? finish_task_switch+0x60/0xe0
[  342.245256]  [<c108b8f0>] ? __kthread_parkme+0x60/0x60
[  342.540063]  [<c108b8f0>] ? __kthread_parkme+0x60/0x60
[  342.809714]  [<c1075287>] do_fork+0x97/0x390
[  343.077825]  [<c108bf06>] ? kthreadd+0x106/0x1b0
[  343.347050]  [<c108b8f0>] ? __kthread_parkme+0x60/0x60
[  343.600101]  [<c107559a>] kernel_thread+0x1a/0x20
[  343.862682]  [<c108bf62>] kthreadd+0x162/0x1b0
[  344.117650]  [<c1e8b580>] ret_from_kernel_thread+0x20/0x30
[  344.474267]  [<c108be00>] ? kthread_stop+0x80/0x80
[  344.806198] Mem-Info:
[  345.089585] DMA per-cpu:
[  345.356379] CPU    0: hi:    0, btch:   1 usd:   0


Thanks,
Huang, Ying


View attachment "config-3.18.0-rc7-gf245ecf" of type "text/plain" (94309 bytes)

View attachment ".dmesg" of type "text/plain" (80152 bytes)

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