From: Oleg Nesterov <oleg@redhat.com>
To: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>,
Konstantin Khlebnikov <khlebnikov@openvz.org>,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH] oom: skip frozen tasks
Date: Thu, 25 Aug 2011 17:18:18 +0200 [thread overview]
Message-ID: <20110825151818.GA4003@redhat.com> (raw)
In-Reply-To: <20110825091920.GA22564@tiehlicka.suse.cz>
On 08/25, Michal Hocko wrote:
>
> On Wed 24-08-11 12:31:26, David Rientjes wrote:
> >
> > That's obviously false since we call oom_killer_disable() in
> > freeze_processes() to disable the oom killer from ever being called in the
> > first place, so this is something you need to resolve with Rafael before
> > you cause more machines to panic.
>
> I didn't mean suspend/resume path (that is protected by oom_killer_disabled)
> so the patch doesn't make any change.
Confused... freeze_processes() does try_to_freeze_tasks() before
oom_killer_disable() ?
Oleg.
WARNING: multiple messages have this Message-ID (diff)
From: Oleg Nesterov <oleg@redhat.com>
To: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>,
Konstantin Khlebnikov <khlebnikov@openvz.org>,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH] oom: skip frozen tasks
Date: Thu, 25 Aug 2011 17:18:18 +0200 [thread overview]
Message-ID: <20110825151818.GA4003@redhat.com> (raw)
In-Reply-To: <20110825091920.GA22564@tiehlicka.suse.cz>
On 08/25, Michal Hocko wrote:
>
> On Wed 24-08-11 12:31:26, David Rientjes wrote:
> >
> > That's obviously false since we call oom_killer_disable() in
> > freeze_processes() to disable the oom killer from ever being called in the
> > first place, so this is something you need to resolve with Rafael before
> > you cause more machines to panic.
>
> I didn't mean suspend/resume path (that is protected by oom_killer_disabled)
> so the patch doesn't make any change.
Confused... freeze_processes() does try_to_freeze_tasks() before
oom_killer_disable() ?
Oleg.
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next prev parent reply other threads:[~2011-08-25 15:21 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-23 8:31 [PATCH] oom: skip frozen tasks Konstantin Khlebnikov
2011-08-23 8:31 ` Konstantin Khlebnikov
2011-08-23 9:15 ` KAMEZAWA Hiroyuki
2011-08-23 9:15 ` KAMEZAWA Hiroyuki
2011-08-23 13:46 ` Michal Hocko
2011-08-23 13:46 ` Michal Hocko
2011-08-23 20:18 ` David Rientjes
2011-08-23 20:18 ` David Rientjes
2011-08-24 10:19 ` Michal Hocko
2011-08-24 10:19 ` Michal Hocko
2011-08-24 19:31 ` David Rientjes
2011-08-24 19:31 ` David Rientjes
2011-08-25 9:19 ` Michal Hocko
2011-08-25 9:19 ` Michal Hocko
2011-08-25 15:18 ` Oleg Nesterov [this message]
2011-08-25 15:18 ` Oleg Nesterov
2011-08-25 16:47 ` Michal Hocko
2011-08-25 16:47 ` Michal Hocko
2011-08-25 21:14 ` David Rientjes
2011-08-25 21:14 ` David Rientjes
2011-08-26 7:09 ` Michal Hocko
2011-08-26 7:09 ` Michal Hocko
2011-08-26 8:56 ` Michal Hocko
2011-08-26 8:56 ` Michal Hocko
2011-08-26 9:21 ` David Rientjes
2011-08-26 9:21 ` David Rientjes
2011-08-26 9:53 ` Michal Hocko
2011-08-26 9:53 ` Michal Hocko
2011-08-26 11:01 ` Michal Hocko
2011-08-26 11:01 ` Michal Hocko
2011-08-26 18:13 ` David Rientjes
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 8:28 ` Michal Hocko
2011-09-26 8:56 ` David Rientjes
2011-09-26 8:56 ` David Rientjes
2011-09-26 9:14 ` Michal Hocko
2011-09-26 9:14 ` Michal Hocko
2011-09-26 9:25 ` KAMEZAWA Hiroyuki
2011-09-26 9:25 ` KAMEZAWA Hiroyuki
2011-09-26 9:32 ` Michal Hocko
2011-09-26 9:32 ` Michal Hocko
2011-09-26 15:51 ` Rafael J. Wysocki
2011-09-26 15:51 ` Rafael J. Wysocki
2011-09-26 18:28 ` Michal Hocko
2011-09-26 18:28 ` Michal Hocko
2011-09-27 1:03 ` David Rientjes
2011-09-27 1:03 ` David Rientjes
2011-09-27 7:52 ` Michal Hocko
2011-09-27 7:52 ` Michal Hocko
2011-09-27 18:30 ` David Rientjes
2011-09-27 18:30 ` David Rientjes
2011-09-26 10:28 ` Rusty Russell
2011-09-26 10:28 ` Rusty Russell
2011-09-26 11:05 ` Michal Hocko
2011-09-26 11:05 ` Michal Hocko
2011-09-27 2:21 ` Rusty Russell
2011-09-27 2:21 ` Rusty Russell
2011-09-27 7:03 ` [PATCH] lguest: move process freezing before pending signals check Michal Hocko
2011-09-27 7:03 ` Michal Hocko
2011-09-26 8:35 ` [PATCH 2/2] oom: give bonus to frozen processes Michal Hocko
2011-09-26 8:35 ` Michal Hocko
2011-09-26 9:02 ` David Rientjes
2011-09-26 9:02 ` David Rientjes
2011-09-26 9:31 ` KAMEZAWA Hiroyuki
2011-09-26 9:31 ` KAMEZAWA Hiroyuki
2011-09-26 9:54 ` Michal Hocko
2011-09-26 9:54 ` Michal Hocko
2011-08-26 21:03 ` [PATCH] oom: skip frozen tasks Rafael J. Wysocki
2011-08-26 21:03 ` Rafael J. Wysocki
2011-08-26 10:03 ` Konstantin Khlebnikov
2011-08-26 10:03 ` Konstantin Khlebnikov
2011-08-26 10:48 ` Michal Hocko
2011-08-26 10:48 ` Michal Hocko
2011-08-26 12:44 ` Konstantin Khlebnikov
2011-08-26 12:44 ` Konstantin Khlebnikov
2011-08-26 12:59 ` Michal Hocko
2011-08-26 12:59 ` Michal Hocko
2011-08-26 7:35 ` Konstantin Khlebnikov
2011-08-26 7:35 ` Konstantin Khlebnikov
2011-08-26 9:09 ` David Rientjes
2011-08-26 9:09 ` David Rientjes
2011-08-26 9:59 ` Konstantin Khlebnikov
2011-08-26 9:59 ` Konstantin Khlebnikov
2011-08-26 18:09 ` David Rientjes
2011-08-26 18:09 ` David Rientjes
2011-08-25 21:03 ` Rafael J. Wysocki
2011-08-25 21:03 ` Rafael J. Wysocki
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