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From: Michal Hocko <mhocko@suse.cz>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: David Rientjes <rientjes@google.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	cgroups@vger.kernel.org,
	"Eric W. Biederman" <ebiederm@xmission.com>
Subject: [PATCH] memcg: Do not hang on OOM when killed by userspace OOM access to memory reserves
Date: Thu, 9 Jan 2014 15:30:48 +0100	[thread overview]
Message-ID: <20140109143048.GE27538@dhcp22.suse.cz> (raw)
In-Reply-To: <20140108103319.GF27937@dhcp22.suse.cz>

On Wed 08-01-14 11:33:19, Michal Hocko wrote:
> On Tue 07-01-14 16:25:03, Andrew Morton wrote:
> [...]
> > > OK, so can we at least agree on the patch posted here:
> > > https://lkml.org/lkml/2013/12/12/129. This is a real bug and definitely
> > > worth fixing.
> > 
> > Yes, can we please get Eric's bug fixed?  I don't believe that Eric has
> > tested either https://lkml.org/lkml/2013/12/12/129 or
> > http://ozlabs.org/~akpm/mmots/broken-out/mm-memcg-avoid-oom-notification-when-current-needs-access-to-memory-reserves.patch.
> > Is he the only person who can reproduce this?
> 
> I have gathered 3 patches from all the discussion and plan to post them
> today or tomorrow as the time permits. https://lkml.org/lkml/2013/12/12/129
> will be a part of it.

OK, I've decided to post the oom notification parts later because they
will likely generate some discussion which might distract from the
actual fix so here it goes (can be applied on both mmotm and the current
Linus' tree):
---

  reply	other threads:[~2014-01-09 14:30 UTC|newest]

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-31  1:39 [patch] mm, memcg: add memory.oom_control notification for system oom David Rientjes
2013-10-31  5:49 ` Johannes Weiner
2013-11-13 22:19   ` David Rientjes
2013-11-13 23:34     ` Johannes Weiner
2013-11-14  0:56       ` David Rientjes
2013-11-14  3:25         ` Johannes Weiner
2013-11-14 22:57           ` David Rientjes
2013-11-14 23:26             ` [patch 1/2] mm, memcg: avoid oom notification when current needs access to memory reserves David Rientjes
2013-11-14 23:26               ` [patch 2/2] mm, memcg: add memory.oom_control notification for system oom David Rientjes
2013-11-18 18:52                 ` Michal Hocko
2013-11-19  1:25                   ` David Rientjes
2013-11-19 12:41                     ` Michal Hocko
2013-11-18 12:52               ` [patch 1/2] mm, memcg: avoid oom notification when current needs access to memory reserves Michal Hocko
2013-11-18 12:55                 ` Michal Hocko
2013-11-19  1:19                   ` David Rientjes
2013-11-18 15:41               ` Johannes Weiner
2013-11-18 16:51                 ` Michal Hocko
2013-11-19  1:22                   ` David Rientjes
2013-11-22 16:51                   ` Johannes Weiner
2013-11-27  0:53                     ` David Rientjes
2013-11-27 16:34                       ` Johannes Weiner
2013-11-27 21:51                         ` David Rientjes
2013-11-27 23:19                           ` Johannes Weiner
2013-11-28  0:22                             ` David Rientjes
2013-11-28  2:28                               ` Johannes Weiner
2013-11-28  2:52                                 ` David Rientjes
2013-11-28  3:16                                   ` Johannes Weiner
2013-12-02 20:02                         ` Michal Hocko
2013-12-02 21:25                           ` Johannes Weiner
2013-12-03 12:04                             ` Michal Hocko
2013-12-03 20:17                               ` Johannes Weiner
2013-12-03 21:00                                 ` Michal Hocko
2013-12-03 21:23                                   ` Johannes Weiner
2013-12-03 23:50                               ` David Rientjes
2013-12-04  3:34                                 ` Johannes Weiner
2013-12-04 11:13                                 ` Michal Hocko
2013-12-05  0:23                                   ` David Rientjes
2013-12-09 12:48                                     ` Michal Hocko
2013-12-09 21:46                                       ` David Rientjes
2013-12-09 22:51                                         ` Johannes Weiner
2013-12-09 23:05                                         ` Johannes Weiner
2014-01-10  0:34                                           ` David Rientjes
2013-12-10 10:38                                         ` Michal Hocko
2013-12-11  1:03                                           ` David Rientjes
2013-12-11  9:55                                             ` Michal Hocko
2013-12-11 22:40                                               ` David Rientjes
2013-12-12 10:31                                                 ` Michal Hocko
2013-12-12 10:50                                                   ` Michal Hocko
2013-12-12 12:11                                                   ` Michal Hocko
2013-12-12 12:37                                                     ` Michal Hocko
2013-12-13 23:55                                                   ` David Rientjes
2013-12-17 16:23                                                     ` Michal Hocko
2013-12-17 20:50                                                       ` David Rientjes
2013-12-18 20:04                                                         ` Michal Hocko
2013-12-19  6:09                                                           ` David Rientjes
2013-12-19 14:41                                                             ` Michal Hocko
2014-01-08  0:25                                                               ` Andrew Morton
2014-01-08 10:33                                                                 ` Michal Hocko
2014-01-09 14:30                                                                   ` Michal Hocko [this message]
2014-01-09 21:40                                                                     ` [PATCH] memcg: Do not hang on OOM when killed by userspace OOM " David Rientjes
2014-01-10  8:23                                                                       ` Michal Hocko
2014-01-10 21:33                                                                         ` David Rientjes
2014-01-15 14:26                                                                           ` Michal Hocko
2014-01-15 21:19                                                                             ` David Rientjes
2014-01-16 10:12                                                                               ` Michal Hocko
2014-01-21  6:13                                                                                 ` David Rientjes
2014-01-21 13:21                                                                                   ` Michal Hocko
2014-01-09 21:34                                                                 ` [patch 1/2] mm, memcg: avoid oom notification when current needs " David Rientjes
2014-01-09 22:47                                                                   ` Andrew Morton
2014-01-10  0:01                                                                     ` David Rientjes
2014-01-10  0:12                                                                       ` Andrew Morton
2014-01-10  0:23                                                                         ` David Rientjes
2014-01-10  0:35                                                                           ` David Rientjes
2014-01-10 22:14                                                                           ` Johannes Weiner
2014-01-12 22:10                                                                             ` David Rientjes
2014-01-15 14:34                                                                               ` Michal Hocko
2014-01-15 21:23                                                                                 ` David Rientjes
2014-01-16  9:32                                                                                   ` Michal Hocko
2014-01-21  5:58                                                                                     ` David Rientjes
2014-01-21  6:04                                                                                       ` Greg Kroah-Hartmann
2014-01-21  6:08                                                                                         ` David Rientjes
2014-01-10  8:30                                                                       ` Michal Hocko
2014-01-10 21:38                                                                         ` David Rientjes
2014-01-10 22:34                                                                           ` Johannes Weiner
2014-01-12 22:14                                                                             ` David Rientjes
2013-11-18 15:54             ` [patch] mm, memcg: add memory.oom_control notification for system oom Johannes Weiner
2013-11-18 23:15               ` One Thousand Gnomes

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