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From: Roman Gushchin <guro@fb.com>
To: kernel test robot <oliver.sang@intel.com>
Cc: 0day robot <lkp@intel.com>, LKML <linux-kernel@vger.kernel.org>,
	<lkp@lists.01.org>, Dennis Zhou <dennis@kernel.org>,
	Tejun Heo <tj@kernel.org>, Christoph Lameter <cl@linux.com>,
	Andrew Morton <akpm@linux-foundation.org>, <linux-mm@kvack.org>
Subject: Re: [percpu]  28c9dada65: invoked_oom-killer:gfp_mask=0x
Date: Mon, 29 Mar 2021 11:19:07 -0700	[thread overview]
Message-ID: <YGIaG2LecGEWvaGY@carbon.dhcp.thefacebook.com> (raw)
In-Reply-To: <20210329083715.GE3633@xsang-OptiPlex-9020>

On Mon, Mar 29, 2021 at 04:37:15PM +0800, kernel test robot wrote:
> 
> 
> Greeting,
> 
> FYI, we noticed the following commit (built with gcc-9):
> 
> commit: 28c9dada655513462112084f5f1769ee49d6fe87 ("[PATCH rfc 3/4] percpu: on demand chunk depopulation")
> url: https://github.com/0day-ci/linux/commits/Roman-Gushchin/percpu-partial-chunk-depopulation/20210325-030746
> base: https://git.kernel.org/cgit/linux/kernel/git/dennis/percpu.git for-next
> 
> in testcase: trinity
> version: trinity-i386-4d2343bd-1_20200320
> with following parameters:
> 
> 	group: group-01
> 
> test-description: Trinity is a linux system call fuzz tester.
> test-url: http://codemonkey.org.uk/projects/trinity/ 
> 
> 
> on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
> 
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
> 
> 
> +---------------------------------------------------------+------------+------------+
> |                                                         | 0a6ed3d793 | 28c9dada65 |
> +---------------------------------------------------------+------------+------------+
> | boot_successes                                          | 6          | 0          |
> | boot_failures                                           | 0          | 6          |
> | invoked_oom-killer:gfp_mask=0x                          | 0          | 6          |
> | Mem-Info                                                | 0          | 6          |
> | Out_of_memory_and_no_killable_processes                 | 0          | 6          |
> | Kernel_panic-not_syncing:System_is_deadlocked_on_memory | 0          | 6          |
> +---------------------------------------------------------+------------+------------+

Found and fixed the problem. V2 will include the fix.

Thanks!


  reply	other threads:[~2021-03-29 18:19 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-24 19:06 [PATCH rfc 0/4] percpu: partial chunk depopulation Roman Gushchin
2021-03-24 19:06 ` [PATCH rfc 1/4] percpu: implement " Roman Gushchin
2021-03-29 17:20   ` Dennis Zhou
2021-03-29 18:29     ` Roman Gushchin
2021-03-29 19:28       ` Dennis Zhou
2021-03-29 19:40         ` Roman Gushchin
2021-03-24 19:06 ` [PATCH rfc 2/4] percpu: split __pcpu_balance_workfn() Roman Gushchin
2021-03-29 17:28   ` Dennis Zhou
2021-03-29 18:20     ` Roman Gushchin
2021-03-24 19:06 ` [PATCH rfc 3/4] percpu: on demand chunk depopulation Roman Gushchin
2021-03-29  8:37   ` [percpu] 28c9dada65: invoked_oom-killer:gfp_mask=0x kernel test robot
2021-03-29 18:19     ` Roman Gushchin [this message]
2021-03-29 19:21   ` [PATCH rfc 3/4] percpu: on demand chunk depopulation Dennis Zhou
2021-03-29 20:10     ` Roman Gushchin
2021-03-29 23:12       ` Dennis Zhou
2021-03-30  1:04         ` Roman Gushchin
2021-03-24 19:06 ` [PATCH rfc 4/4] percpu: fix a comment about the chunks ordering Roman Gushchin

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