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Message-Id: <1256650833-15516-1-git-send-email-mel@csn.ul.ie> Date: Tue, 27 Oct 2009 13:40:30 +0000 From: Mel Gorman <mel@....ul.ie> To: Andrew Morton <akpm@...ux-foundation.org>, stable@...nel.org Cc: linux-kernel@...r.kernel.org, "linux-mm@...ck.org\"" <linux-mm@...ck.org>, Frans Pop <elendil@...net.nl>, Jiri Kosina <jkosina@...e.cz>, Sven Geggus <lists@...hsschwanzdomain.de>, Karol Lewandowski <karol.k.lewandowski@...il.com>, Tobias Oetiker <tobi@...iker.ch>, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>, Pekka Enberg <penberg@...helsinki.fi>, Rik van Riel <riel@...hat.com>, Christoph Lameter <cl@...ux-foundation.org>, Stephan von Krawczynski <skraw@...net.com>, "Rafael J. Wysocki" <rjw@...k.pl>, Kernel Testers List <kernel-testers@...r.kernel.org>, Mel Gorman <mel@....ul.ie> Subject: [PATCH 0/3] Reduce GFP_ATOMIC allocation failures, partial fix V3 Since 2.6.31-rc1, there have been an increasing number of GFP_ATOMIC failures. A significant number of these have been high-order GFP_ATOMIC failures and while they are generally brushed away, there has been a large increase in them recently and there are a number of possible areas the problem could be in - core vm, page writeback and a specific driver. The bugs affected by this that I am aware of are; [Bug #14141] order 2 page allocation failures in iwlagn [Bug #14141] order 2 page allocation failures (generic) [Bug #14265] ifconfig: page allocation failure. order:5, mode:0x8020 w/ e100 [No BZ ID] Kernel crash on 2.6.31.x (kcryptd: page allocation failure..) [No BZ ID] page allocation failure message kernel 2.6.31.4 (tty-related) The three patches in this series partially address the problem. I am proposing these for merging to mainline and -stable now to reduce the number of duplicate bug reports. The following bug should be fixed by these patches. [No BZ ID] page allocation failure message kernel 2.6.31.4 (tty-related) The following bug becomes very difficult to reproduce with these patches; [Bug #14265] ifconfig: page allocation failure. order:5, mode:0x8020 w/ e100 The rest of the bugs remain open. If these patches are agreed upon, they should be also considered -stable candidates. Patch 1 does not apply cleanly but I can supply a version that does. mm/page_alloc.c | 4 ++-- mm/vmscan.c | 9 +++++++++ 2 files changed, 11 insertions(+), 2 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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