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From: "Vedran Furač" <vedran.furac@gmail.com>
To: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Hugh Dickins <hugh.dickins@tiscali.co.uk>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	minchan.kim@gmail.com, Andrew Morton <akpm@linux-foundation.org>,
	Andrea Arcangeli <aarcange@redhat.com>
Subject: Re: Memory overcommit
Date: Thu, 29 Oct 2009 12:11:29 +0100	[thread overview]
Message-ID: <4AE97861.1070902@gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.00.0910290136000.11476@chino.kir.corp.google.com>

David Rientjes wrote:

> Right, because in Vedran's latest oom log it shows that Xorg is preferred 
> more than any other thread other than the memory hogging test program with 
> your patch than without.  I pointed out a clear distinction in the killing 
> order using both total_vm and rss in that log and in my opinion killing 
> Xorg as opposed to krunner would be undesireable.

But then you should rename OOM killer to TRIPK:
Totally Random Innocent Process Killer

If you have OOM situation and Xorg is the first, that means it's leaking
memory badly and the system is probably already frozen/FUBAR. Killing
krunner in that situation wouldn't do any good. From a user perspective,
nothing changes, system is still FUBAR and (s)he would probably reboot
cursing linux in the process.


WARNING: multiple messages have this Message-ID (diff)
From: "Vedran Furač" <vedran.furac@gmail.com>
To: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Hugh Dickins <hugh.dickins@tiscali.co.uk>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	minchan.kim@gmail.com, Andrew Morton <akpm@linux-foundation.org>,
	Andrea Arcangeli <aarcange@redhat.com>
Subject: Re: Memory overcommit
Date: Thu, 29 Oct 2009 12:11:29 +0100	[thread overview]
Message-ID: <4AE97861.1070902@gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.00.0910290136000.11476@chino.kir.corp.google.com>

David Rientjes wrote:

> Right, because in Vedran's latest oom log it shows that Xorg is preferred 
> more than any other thread other than the memory hogging test program with 
> your patch than without.  I pointed out a clear distinction in the killing 
> order using both total_vm and rss in that log and in my opinion killing 
> Xorg as opposed to krunner would be undesireable.

But then you should rename OOM killer to TRIPK:
Totally Random Innocent Process Killer

If you have OOM situation and Xorg is the first, that means it's leaking
memory badly and the system is probably already frozen/FUBAR. Killing
krunner in that situation wouldn't do any good. From a user perspective,
nothing changes, system is still FUBAR and (s)he would probably reboot
cursing linux in the process.

--
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  reply	other threads:[~2009-10-29 11:11 UTC|newest]

Thread overview: 162+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-12 11:51 Memory overcommit Vedran Furač
2009-10-13  3:08 ` KAMEZAWA Hiroyuki
2009-10-13 17:13   ` Vedran Furač
2009-10-14  4:51     ` KAMEZAWA Hiroyuki
2009-10-20 21:52       ` Vedran Furač
2009-10-26  1:55         ` KAMEZAWA Hiroyuki
2009-10-26 16:16           ` Vedran Furač
2009-10-26 16:16             ` Vedran Furač
2009-10-27  3:22             ` KAMEZAWA Hiroyuki
2009-10-27  3:22               ` KAMEZAWA Hiroyuki
2009-10-27  6:10               ` KOSAKI Motohiro
2009-10-27  6:10                 ` KOSAKI Motohiro
2009-10-27  6:34                 ` Minchan Kim
2009-10-27  6:34                   ` Minchan Kim
2009-10-27  6:36                   ` KAMEZAWA Hiroyuki
2009-10-27  6:36                     ` KAMEZAWA Hiroyuki
2009-10-27  6:55                     ` Minchan Kim
2009-10-27  6:55                       ` Minchan Kim
2009-10-27  7:45                       ` [RFC][PATCH] oom_kill: avoid depends on total_vm and use real RSS/swap value for oom_score (Re: " KAMEZAWA Hiroyuki
2009-10-27  7:45                         ` KAMEZAWA Hiroyuki
2009-10-27  7:56                         ` Minchan Kim
2009-10-27  7:56                           ` Minchan Kim
2009-10-27 12:38                           ` Andrea Arcangeli
2009-10-27 12:38                             ` Andrea Arcangeli
2009-10-28  0:22                             ` KAMEZAWA Hiroyuki
2009-10-28  0:22                               ` KAMEZAWA Hiroyuki
2009-10-28  0:45                               ` Vedran Furač
2009-10-28  0:45                                 ` Vedran Furač
2009-10-27  7:56                         ` KAMEZAWA Hiroyuki
2009-10-27  7:56                           ` KAMEZAWA Hiroyuki
2009-10-27  8:14                           ` Minchan Kim
2009-10-27  8:14                             ` Minchan Kim
2009-10-27  8:33                             ` KAMEZAWA Hiroyuki
2009-10-27  8:33                               ` KAMEZAWA Hiroyuki
2009-10-27  8:52                               ` Minchan Kim
2009-10-27  8:52                                 ` Minchan Kim
2009-10-27  8:56                                 ` KAMEZAWA Hiroyuki
2009-10-27  8:56                                   ` KAMEZAWA Hiroyuki
2009-10-27 17:41                         ` Vedran Furač
2009-10-27 17:41                           ` Vedran Furač
2009-10-28  0:13                           ` KAMEZAWA Hiroyuki
2009-10-28  0:13                             ` KAMEZAWA Hiroyuki
2009-10-27 18:39                         ` Hugh Dickins
2009-10-27 18:39                           ` Hugh Dickins
2009-10-27 18:47                           ` Andrea Arcangeli
2009-10-27 18:47                             ` Andrea Arcangeli
2009-10-28  0:32                             ` KAMEZAWA Hiroyuki
2009-10-28  0:32                               ` KAMEZAWA Hiroyuki
2009-11-05 19:02                             ` Pavel Machek
2009-11-05 19:02                               ` Pavel Machek
2009-10-28  0:28                           ` KAMEZAWA Hiroyuki
2009-10-28  0:28                             ` KAMEZAWA Hiroyuki
2009-10-27  6:46                   ` KOSAKI Motohiro
2009-10-27  6:46                     ` KOSAKI Motohiro
2009-10-27  6:56                     ` Minchan Kim
2009-10-27  6:56                       ` Minchan Kim
2009-10-27 17:12               ` Vedran Furač
2009-10-27 17:12                 ` Vedran Furač
2009-10-27 18:02                 ` KOSAKI Motohiro
2009-10-27 18:30                   ` Vedran Furač
2009-10-27 18:30                     ` Vedran Furač
2009-10-27 20:44               ` Hugh Dickins
2009-10-27 20:44                 ` Hugh Dickins
2009-10-27 21:04                 ` David Rientjes
2009-10-27 21:04                   ` David Rientjes
2009-10-28  0:08                   ` Vedran Furač
2009-10-28  0:08                     ` Vedran Furač
2009-10-28  0:25                     ` David Rientjes
2009-10-28  0:25                       ` David Rientjes
2009-10-28  0:39                       ` Vedran Furač
2009-10-28  0:39                         ` Vedran Furač
2009-10-28  4:08                         ` David Rientjes
2009-10-28  4:08                           ` David Rientjes
2009-10-28  4:55                           ` KAMEZAWA Hiroyuki
2009-10-28  4:55                             ` KAMEZAWA Hiroyuki
2009-10-28  5:13                             ` David Rientjes
2009-10-28  5:13                               ` David Rientjes
2009-10-28  6:05                               ` KAMEZAWA Hiroyuki
2009-10-28  6:05                                 ` KAMEZAWA Hiroyuki
2009-10-28  6:17                                 ` David Rientjes
2009-10-28  6:17                                   ` David Rientjes
2009-10-28  6:20                                   ` KAMEZAWA Hiroyuki
2009-10-28  6:20                                     ` KAMEZAWA Hiroyuki
2009-10-29  8:38                                     ` David Rientjes
2009-10-29  8:38                                       ` David Rientjes
2009-10-29 11:11                                       ` Vedran Furač [this message]
2009-10-29 11:11                                         ` Vedran Furač
2009-10-29 19:53                                         ` David Rientjes
2009-10-29 19:53                                           ` David Rientjes
2009-10-29 23:48                                           ` KAMEZAWA Hiroyuki
2009-10-29 23:48                                             ` KAMEZAWA Hiroyuki
2009-10-30  9:10                                             ` David Rientjes
2009-10-30  9:10                                               ` David Rientjes
2009-10-30  9:36                                               ` KAMEZAWA Hiroyuki
2009-10-30  9:36                                                 ` KAMEZAWA Hiroyuki
2009-10-30 10:49                                                 ` Thomas Fjellstrom
2009-11-03 20:49                                                 ` David Rientjes
2009-11-03 20:49                                                   ` David Rientjes
2009-11-04  0:50                                                   ` KAMEZAWA Hiroyuki
2009-11-04  0:50                                                     ` KAMEZAWA Hiroyuki
2009-11-04  1:58                                                     ` David Rientjes
2009-11-04  1:58                                                       ` David Rientjes
2009-11-04  2:17                                                       ` KAMEZAWA Hiroyuki
2009-11-04  2:17                                                         ` KAMEZAWA Hiroyuki
2009-11-04  3:10                                                         ` David Rientjes
2009-11-04  3:10                                                           ` David Rientjes
2009-11-04  3:19                                                           ` KAMEZAWA Hiroyuki
2009-11-04  3:19                                                             ` KAMEZAWA Hiroyuki
2009-10-30 13:59                                           ` Vedran Furač
2009-10-30 13:59                                             ` Vedran Furač
2009-10-30 19:24                                             ` David Rientjes
2009-10-30 19:24                                               ` David Rientjes
2009-11-02 19:58                                               ` Vedran Furač
2009-11-02 19:58                                                 ` Vedran Furač
2009-10-28 13:28                           ` Vedran Furač
2009-10-28 13:28                             ` Vedran Furač
2009-10-28 20:10                             ` David Rientjes
2009-10-28 20:10                               ` David Rientjes
2009-10-29  3:05                               ` Vedran Furač
2009-10-29  3:05                                 ` Vedran Furač
2009-10-29  8:35                                 ` David Rientjes
2009-10-29  8:35                                   ` David Rientjes
2009-10-29 11:01                                   ` Vedran Furač
2009-10-29 11:01                                     ` Vedran Furač
2009-10-29 19:42                                     ` David Rientjes
2009-10-29 19:42                                       ` David Rientjes
2009-10-30 13:53                                       ` Vedran Furač
2009-10-30 13:53                                         ` Vedran Furač
2009-10-30 14:08                                         ` Thomas Fjellstrom
2009-10-30 14:08                                           ` Thomas Fjellstrom
2009-10-30 15:13                                           ` Vedran Furač
2009-10-30 15:13                                             ` Vedran Furač
2009-10-30 14:12                                         ` Andrea Arcangeli
2009-10-30 14:12                                           ` Andrea Arcangeli
2009-10-30 14:41                                           ` Vedran Furač
2009-10-30 14:41                                             ` Vedran Furač
2009-10-30 15:15                                             ` Andrea Arcangeli
2009-10-30 15:15                                               ` Andrea Arcangeli
2009-10-30 16:24                                               ` Hugh Dickins
2009-10-30 16:24                                                 ` Hugh Dickins
2009-11-02 19:56                                               ` Vedran Furač
2009-11-02 19:56                                                 ` Vedran Furač
2009-10-30 19:44                                         ` David Rientjes
2009-10-30 19:44                                           ` David Rientjes
2009-11-02 19:56                                           ` Vedran Furač
2009-11-02 19:56                                             ` Vedran Furač
2009-10-28  0:43                 ` KAMEZAWA Hiroyuki
2009-10-28  0:43                   ` KAMEZAWA Hiroyuki
2009-10-28  2:47                 ` KOSAKI Motohiro
2009-10-28  2:47                   ` KOSAKI Motohiro
2009-10-28  3:17                   ` KAMEZAWA Hiroyuki
2009-10-28  3:17                     ` KAMEZAWA Hiroyuki
2009-10-28  4:12                   ` David Rientjes
2009-10-28  4:12                     ` David Rientjes
2009-10-28  8:10                     ` Hugh Dickins
2009-10-28  8:10                       ` Hugh Dickins
  -- strict thread matches above, loose matches on Subject: below --
2005-12-09 22:00 Tracy R Reed
2005-12-11  2:00 ` Kip Macy
2005-12-11 15:45   ` Keir Fraser
2005-12-11 19:59     ` Rik van Riel
2005-12-13 16:10       ` Keir Fraser
2005-12-13 16:25         ` Jacob Gorm Hansen

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