From: Michal Hocko <mhocko@suse.cz>
To: azurIt <azurit@pobox.sk>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Rientjes <rientjes@google.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
linux-mm@kvack.org, cgroups@vger.kernel.org, x86@kernel.org,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 0/7] improve memcg oom killer robustness v2
Date: Mon, 16 Sep 2013 16:06:07 +0200 [thread overview]
Message-ID: <20130916140607.GC3674@dhcp22.suse.cz> (raw)
In-Reply-To: <20130916160119.2E76C2A1@pobox.sk>
On Mon 16-09-13 16:01:19, azurIt wrote:
> > CC: "Johannes Weiner" <hannes@cmpxchg.org>, "Andrew Morton" <akpm@linux-foundation.org>, "David Rientjes" <rientjes@google.com>, "KAMEZAWA Hiroyuki" <kamezawa.hiroyu@jp.fujitsu.com>, "KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com>, linux-mm@kvack.org, cgroups@vger.kernel.org, x86@kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
> >On Sat 14-09-13 12:48:31, azurIt wrote:
> >[...]
> >> Here is the first occurence, this night between 5:15 and 5:25:
> >> - this time i kept opened terminal from other server to this problematic one with htop running
> >> - when server went down i opened it and saw one process of one user running at the top and taking 97% of CPU (cgroup 1304)
> >
> >I guess you do not have a stack trace(s) for that process? That would be
> >extremely helpful.
>
> I'm afraid it won't be possible as server is completely not responding
> when it happens. Anyway, i don't think it was a fault of one process
> or one user.
You can use sysrq+l via serial console to see tasks hogging the CPU or
sysrq+t to see all the existing tasks.
[...]
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2013-09-16 14:06 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-03 16:59 [patch 0/7] improve memcg oom killer robustness v2 Johannes Weiner
2013-08-03 16:59 ` [patch 1/7] arch: mm: remove obsolete init OOM protection Johannes Weiner
2013-08-06 6:34 ` Vineet Gupta
2013-08-03 16:59 ` [patch 2/7] arch: mm: do not invoke OOM killer on kernel fault OOM Johannes Weiner
2013-08-03 16:59 ` [patch 3/7] arch: mm: pass userspace fault flag to generic fault handler Johannes Weiner
2013-08-05 22:06 ` Andrew Morton
2013-08-05 22:25 ` Johannes Weiner
2013-08-03 16:59 ` [patch 4/7] x86: finish user fault error path with fatal signal Johannes Weiner
2013-08-03 16:59 ` [patch 5/7] mm: memcg: enable memcg OOM killer only for user faults Johannes Weiner
2013-08-05 9:18 ` Michal Hocko
2013-08-03 16:59 ` [patch 6/7] mm: memcg: rework and document OOM waiting and wakeup Johannes Weiner
2013-08-03 17:00 ` [patch 7/7] mm: memcg: do not trap chargers with full callstack on OOM Johannes Weiner
2013-08-05 9:54 ` Michal Hocko
2013-08-05 20:56 ` Johannes Weiner
2013-08-03 17:08 ` [patch 0/7] improve memcg oom killer robustness v2 Johannes Weiner
2013-08-09 9:06 ` azurIt
2013-08-30 19:58 ` azurIt
2013-09-02 10:38 ` azurIt
2013-09-03 20:48 ` Johannes Weiner
2013-09-04 7:53 ` azurIt
2013-09-04 8:18 ` azurIt
2013-09-05 11:54 ` Johannes Weiner
2013-09-05 12:43 ` Michal Hocko
2013-09-05 16:18 ` Johannes Weiner
2013-09-09 12:36 ` Michal Hocko
2013-09-09 12:56 ` Michal Hocko
2013-09-12 12:59 ` Johannes Weiner
2013-09-16 14:03 ` Michal Hocko
2013-09-05 13:24 ` Michal Hocko
2013-09-09 13:10 ` azurIt
2013-09-09 17:28 ` Johannes Weiner
2013-09-09 19:59 ` azurIt
2013-09-09 20:12 ` Johannes Weiner
2013-09-09 20:18 ` azurIt
2013-09-09 21:08 ` azurIt
2013-09-10 18:13 ` azurIt
2013-09-10 18:37 ` Johannes Weiner
2013-09-10 19:32 ` azurIt
2013-09-10 20:12 ` Johannes Weiner
2013-09-10 21:08 ` azurIt
2013-09-10 21:18 ` Johannes Weiner
2013-09-10 21:32 ` azurIt
2013-09-10 22:03 ` Johannes Weiner
2013-09-11 12:33 ` azurIt
2013-09-11 18:03 ` Johannes Weiner
2013-09-11 18:54 ` azurIt
2013-09-11 19:11 ` Johannes Weiner
2013-09-11 19:41 ` azurIt
2013-09-11 20:04 ` Johannes Weiner
2013-09-14 10:48 ` azurIt
2013-09-16 13:40 ` Michal Hocko
2013-09-16 14:01 ` azurIt
2013-09-16 14:06 ` Michal Hocko [this message]
2013-09-16 14:13 ` azurIt
2013-09-16 14:57 ` Michal Hocko
2013-09-16 15:05 ` azurIt
2013-09-16 15:17 ` Johannes Weiner
2013-09-16 15:24 ` azurIt
2013-09-16 15:25 ` Michal Hocko
2013-09-16 15:40 ` azurIt
2013-09-16 20:52 ` azurIt
2013-09-17 0:02 ` Johannes Weiner
2013-09-17 11:15 ` azurIt
2013-09-17 14:10 ` Michal Hocko
2013-09-18 14:03 ` azurIt
2013-09-18 14:24 ` Michal Hocko
2013-09-18 14:33 ` azurIt
2013-09-18 14:42 ` Michal Hocko
2013-09-18 18:02 ` azurIt
2013-09-18 18:36 ` Michal Hocko
[not found] ` <20130918160304.6EDF2729-Rm0zKEqwvD4@public.gmane.org>
2013-09-18 18:04 ` Johannes Weiner
[not found] ` <20130918180455.GD856-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2013-09-18 18:19 ` Johannes Weiner
2013-09-18 19:55 ` Johannes Weiner
2013-09-18 20:52 ` azurIt
2013-09-25 7:26 ` azurIt
2013-09-26 16:54 ` azurIt
2013-09-26 19:27 ` Johannes Weiner
2013-09-27 2:04 ` azurIt
2013-10-07 11:01 ` azurIt
[not found] ` <20131007130149.5F5482D8-Rm0zKEqwvD4@public.gmane.org>
2013-10-07 19:23 ` Johannes Weiner
2013-10-09 18:44 ` azurIt
2013-10-10 0:14 ` Johannes Weiner
2013-10-10 22:59 ` azurIt
2013-09-17 11:20 ` azurIt
2013-09-16 10:22 ` azurIt
2013-09-04 9:45 ` azurIt
2013-09-04 11:57 ` Michal Hocko
2013-09-04 12:10 ` azurIt
2013-09-04 12:26 ` Michal Hocko
2013-09-04 12:39 ` azurIt
2013-09-05 9:14 ` azurIt
2013-09-05 9:53 ` Michal Hocko
2013-09-05 10:17 ` azurIt
2013-09-05 11:17 ` Michal Hocko
2013-09-05 11:47 ` azurIt
2013-09-05 12:03 ` Michal Hocko
2013-09-05 12:33 ` azurIt
2013-09-05 12:45 ` Michal Hocko
2013-09-05 13:00 ` azurIt
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