linux-kernel - Re: [Bug #14141] order 2 page allocation failures in iwlagn

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Date:	Wed, 14 Oct 2009 23:33:26 +0200
From:	Frans Pop <elendil@...net.nl>
To:	reinette chatre <reinette.chatre@...el.com>
Cc:	Mel Gorman <mel@....ul.ie>, David Rientjes <rientjes@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	Karol Lewandowski <karol.k.lewandowski@...il.com>,
	"Abbas, Mohamed" <mohamed.abbas@...el.com>,
	"John W. Linville" <linville@...driver.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: [Bug #14141] order 2 page allocation failures in iwlagn

On Wednesday 14 October 2009, reinette chatre wrote:
> We do queue the GFP_KERNEL allocations when there are only a few buffers
> remaining in the queue (8 right now) ...

Are you sure of this? I have zero messages in my logs about allocation 
failures with GFP_KERNEL, but I do have plenty with "Only 0 free buffers 
remaining" with GFP_ATOMIC.

Does that indicate a bug or could they fall under the ratelimit somehow?
Or do I misunderstand the logic?
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