From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id 8A71E6B0055 for ; Mon, 19 Oct 2009 10:01:53 -0400 (EDT) Received: by fg-out-1718.google.com with SMTP id d23so1899360fga.8 for ; Mon, 19 Oct 2009 07:01:51 -0700 (PDT) Date: Mon, 19 Oct 2009 16:01:45 +0200 From: Karol Lewandowski Subject: Re: [Bug #14141] order 2 page allocation failures (generic) Message-ID: <20091019140145.GA4222@bizet.domek.prywatny> References: <3onW63eFtRF.A.xXH.oMTxKB@chimera> <200910190133.33183.elendil@planet.nl> <1255912562.6824.9.camel@penberg-laptop> <200910190444.55867.elendil@planet.nl> <1255946051.5941.2.camel@penberg-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1255946051.5941.2.camel@penberg-laptop> Sender: owner-linux-mm@kvack.org To: Pekka Enberg Cc: Tobi Oetiker , Frans Pop , Mel Gorman , David Rientjes , KOSAKI Motohiro , "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List , Reinette Chatre , Bartlomiej Zolnierkiewicz , Karol Lewandowski , Mohamed Abbas , "John W. Linville" , linux-mm@kvack.org, jens.axboe@oracle.com List-ID: On Mon, Oct 19, 2009 at 12:54:11PM +0300, Pekka Enberg wrote: > On Mon, 2009-10-19 at 11:49 +0200, Tobi Oetiker wrote: > > I have updated a fileserver to 2.6.31 today and I see page > > allocation failures from several parts of the system ... mostly nfs though ... (it is a nfs server). > > So I guess the problem must be quite generic: > > Yup, it almost certainly is. Does this patch help? > > http://lkml.org/lkml/2009/10/16/89 This patch seems to help in some cases. Before applying this patch I was able to trigger alloc failures on different machine by booting kernel with "mem=256MB" and doing: $ gitk on-full-tree & # rmmod e100 ... wait for few MBs in swap # modprobe e100; ifup --force ethX So here this patch helped -- with it, I was unable to trigger page allocation failures (testing was short, tough). However, as I said here[1], I applied both of Mel's patches (including this one) and that didn't help my orginal issue (failures after suspend). [1] http://lkml.org/lkml/2009/10/17/109 Thanks. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org