linux-kernel - Re: [PATCH] drm/i915: Selectively enable self-reclaim

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Message-ID: <4B6023DF.5070605@reinelt.co.at>
Date:	Wed, 27 Jan 2010 12:30:39 +0100
From:	Michael Reinelt <michael@...nelt.co.at>
To:	Pekka Enberg <penberg@...helsinki.fi>
CC:	Chris Wilson <chris@...is-wilson.co.uk>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Roman Jarosz <kedgedev@...il.com>,
	A Rojas <nqn1976list@...il.com>,
	"A. Boulan" <arnaud.boulan@...ertysurf.fr>,
	jcnengel@...glemail.com, rientjes@...gle.com, earny@...4u.de,
	linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Eric Anholt <eric@...olt.net>, stable@...nel.org
Subject: Re: [PATCH] drm/i915: Selectively enable self-reclaim



Pekka Enberg schrieb:
> Chris Wilson kirjoitti:
>> Having missed the ENOMEM return via i915_gem_fault(), there are probably
>> other paths that I also missed. By not enabling NORETRY by default these
>> paths can run the shrinker and take memory from the system (but not from
>> our own inactive lists because our shrinker can not run whilst we hold
>> the struct mutex) and this may allow the system to survive a little
>> longer
>> whilst our drivers consume all available memory.
>>
>> References:
>>   OOM killer unexpectedly called with kernel 2.6.32
>>   http://bugzilla.kernel.org/show_bug.cgi?id=14933
>>
>> Signed-off-by: Chris Wilson <chris@...is-wilson.co.uk>
>> Cc: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
>> Cc: Hugh Dickins <hugh.dickins@...cali.co.uk>
>> Cc: Jesse Barnes <jbarnes@...tuousgeek.org>
>> Cc: Eric Anholt <eric@...olt.net>
>> Cc: stable@...nel.org
> 
> Roman, can you give this patch a spin?

I'm willing to test it, too (I can easily reproduce the problem), but I don't use (and know nothing about) git. Is there
a way for me to test it?


-- 
Michael Reinelt <michael@...nelt.co.at>
http://home.pages.at/reinelt
GPG-Key 0xDF13BA50
ICQ #288386781
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