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From: David Rientjes <rientjes@google.com>
To: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Michal Hocko <mhocko@suse.cz>, Oleg Nesterov <oleg@redhat.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: [PATCH] oom: skip frozen tasks
Date: Fri, 26 Aug 2011 11:09:14 -0700 (PDT)	[thread overview]
Message-ID: <alpine.DEB.2.00.1108261106570.13943@chino.kir.corp.google.com> (raw)
In-Reply-To: <4E576E6F.1030909@openvz.org>

On Fri, 26 Aug 2011, Konstantin Khlebnikov wrote:

> Maybe just fix this "panic" logic? OOM killer should panic only on global
> memory shortage.
> 

NO, it shouldn't, we actually rely quite extensively on cpusets filled 
with OOM_DISABLE threads to panic because the job scheduler would be 
unresponsive in such a condition and it'd much better to panic and reboot 
than to brick the machine.  I'm not sure where you're getting all your 
information from, but please don't pass it off as principles.

You can set the panic logic to be whatever you want with 
/proc/sys/vm/panic_on_oom.  See Documentation/filesystems/proc.txt for 
more information.

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  reply	other threads:[~2011-08-26 18:09 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-23  8:31 Konstantin Khlebnikov
2011-08-23  9:15 ` KAMEZAWA Hiroyuki
2011-08-23 13:46 ` Michal Hocko
2011-08-23 20:18 ` David Rientjes
2011-08-24 10:19   ` Michal Hocko
2011-08-24 19:31     ` David Rientjes
2011-08-25  9:19       ` Michal Hocko
2011-08-25 15:18         ` Oleg Nesterov
2011-08-25 16:47           ` Michal Hocko
2011-08-25 21:14             ` David Rientjes
2011-08-26  7:09               ` Michal Hocko
2011-08-26  8:56                 ` Michal Hocko
2011-08-26  9:21                   ` David Rientjes
2011-08-26  9:53                     ` Michal Hocko
2011-08-26 11:01                       ` Michal Hocko
2011-08-26 18:13                       ` David Rientjes
2011-09-26  8:28                         ` [PATCH 1/2] oom: do not live lock on " Michal Hocko
2011-09-26  8:56                           ` David Rientjes
2011-09-26  9:14                             ` Michal Hocko
2011-09-26  9:25                               ` KAMEZAWA Hiroyuki
2011-09-26  9:32                                 ` Michal Hocko
2011-09-26 15:51                               ` Rafael J. Wysocki
2011-09-26 18:28                                 ` Michal Hocko
2011-09-27  1:03                                 ` David Rientjes
2011-09-27  7:52                                   ` Michal Hocko
2011-09-27 18:30                                     ` David Rientjes
2011-09-26 10:28                           ` Rusty Russell
2011-09-26 11:05                             ` Michal Hocko
2011-09-27  2:21                               ` Rusty Russell
2011-09-27  7:03                                 ` [PATCH] lguest: move process freezing before pending signals check Michal Hocko
2011-09-26  8:35                         ` [PATCH 2/2] oom: give bonus to frozen processes Michal Hocko
2011-09-26  9:02                           ` David Rientjes
2011-09-26  9:31                             ` KAMEZAWA Hiroyuki
2011-09-26  9:54                               ` Michal Hocko
2011-08-26 21:03                     ` [PATCH] oom: skip frozen tasks Rafael J. Wysocki
2011-08-26 10:03                   ` Konstantin Khlebnikov
2011-08-26 10:48                     ` Michal Hocko
2011-08-26 12:44                       ` Konstantin Khlebnikov
2011-08-26 12:59                         ` Michal Hocko
2011-08-26  7:35               ` Konstantin Khlebnikov
2011-08-26  9:09                 ` David Rientjes
2011-08-26  9:59                   ` Konstantin Khlebnikov
2011-08-26 18:09                     ` David Rientjes [this message]
2011-08-25 21:03           ` Rafael J. Wysocki

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