linux-kernel - Re: OOM-Killer kills too much with 2.6.32.2

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Message-ID: <84144f021001270156x7613c8b1ha0084b0abf604775@mail.gmail.com>
Date:	Wed, 27 Jan 2010 11:56:10 +0200
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Chris Wilson <chris@...is-wilson.co.uk>,
	Roman Jarosz <kedgedev@...il.com>,
	lkml <linux-kernel@...r.kernel.org>,
	A Rojas <nqn1976list@...il.com>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	"A. Boulan" <arnaud.boulan@...ertysurf.fr>, michael@...nelt.co.at,
	jcnengel@...glemail.com, rientjes@...gle.com, earny@...4u.de,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Eric Anholt <eric@...olt.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: OOM-Killer kills too much with 2.6.32.2

On Wed, Jan 27, 2010 at 2:50 AM, KOSAKI Motohiro
<kosaki.motohiro@...fujitsu.com> wrote:
>> On Tue, 26 Jan 2010 22:03:06 +0900, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote:
>> > Please consider to revert such commit at once. Lots people reported
>> > the same issue.
>> > I really hope to stop bug report storm.
>>
>> Your CC did not reference the problem that you were discussing, nor that
>> it is even easier to trigger an OOM without the shrinker. Memory
>> exhaustion due to the excess usage of surfaces from userspace is not a new
>> issuer. So what is the problem you have encountered and how does running
>> the OOM killer earlier fix the issue of triggering the OOM killer?
>
> Why do you bother easy googling?
>
> example.
>
> 1) http://bugzilla.kernel.org/show_bug.cgi?id=14933
>        Subject    : OOM killer unexpectedly called with kernel 2.6.32
>        Submitter  : "A. Boulan" <arnaud.boulan@...ertysurf.fr>
>        Date       : 2009-12-24 23:42
>        References : http://marc.info/?l=linux-kernel&m=126169821317492&w=4
>
> 2) http://bugzilla.kernel.org/show_bug.cgi?id=15015
>        Subject: blank screen at random times in laptop when sitting idle
>        From:    Jithin Emmanuel
>        Date:    2010-01-09 16:48:23
>
>        see comment #2
>
> 3) http://bugzilla.kernel.org/show_bug.cgi?id=15058
>        From:   Michael Reinelt
>        Date:   2010-01-14 16:39:51
>
> 4) Subject: Re: OOM kernel behaviour
>   From: David John <davidjon@...ontk.org>
>   Mon, 07 Dec 2009 11:04:24 +0530
>
> 5) This thread

Yes, we're very late in 2.6.33 cycle. Chris/Jesse, please apply
Motohiro-san's patch or revert the commit.

                                Pekka
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