linux-kernel - Re: Page alloc problems with 2.6.32-rc kernels

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Message-Id: <200910271138.01624.elendil@planet.nl>
Date:	Tue, 27 Oct 2009 11:38:00 +0100
From:	Frans Pop <elendil@...net.nl>
To:	Michael Guntsche <mike@...loops.com>
Cc:	linux-kernel@...r.kernel.org, Mel Gorman <mel@....ul.ie>
Subject: Re: Page alloc problems with 2.6.32-rc kernels

Michael Guntsche wrote:
> I noticed that I get page alloc errors on one of my machines.
> It is an old server I use as a fileserver with 512MB RAM. Before
> 2.6.3[12] I did not see this problem at all.
> This only seems to happens when I use mutt on this machine.
> I know that it means I am running out of memory here, but I am wondering
> why I did not see this before....
> 
> mutt: page allocation failure. order:1, mode:0x20
> Pid: 21746, comm: mutt Not tainted 2.6.32-rc5 #2

This is a known issue that's being heavily investigated, but is proving 
very elusive. See http://lkml.org/lkml/2009/10/22/128 for an overview.

Can you easily reproduce the problem, or does it happen at random moments? 
If you can reproduce it, it would be great if you could test the patches 
mentioned in that mail.

Cheers,
FJP
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