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From: Konstantin Khlebnikov <khlebnikov@openvz.org>
To: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>,
	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 14:03:17 +0400	[thread overview]
Message-ID: <4E576F65.5060009@openvz.org> (raw)
In-Reply-To: <20110826085610.GA9083@tiehlicka.suse.cz>

Michal Hocko wrote:

> @@ -450,6 +459,10 @@ static int oom_kill_task(struct task_struct *p, struct mem_cgroup *mem)
>   			pr_err("Kill process %d (%s) sharing same memory\n",
>   				task_pid_nr(q), q->comm);
>   			task_unlock(q);
> +
> +			if (frozen(q))
> +				thaw_process(q);
> +

We must thaw task strictly after sending SIGKILL.
But anyway I think this is a bad idea.

>   			force_sig(SIGKILL, q);
>   		}
>

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  parent reply	other threads:[~2011-08-26 10:03 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-23  8:31 [PATCH] oom: skip frozen tasks 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 [this message]
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
2011-08-25 21:03           ` Rafael J. Wysocki

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