linux-kernel - Re: 2.6.38.8 kernel bug in XFS or megaraid driver with heavy I/O load

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Message-ID: <e78a7c38af135cee4b742c99ecd1c011.squirrel@shrek.krogh.cc>
Date:	Mon, 17 Oct 2011 14:40:07 +0200 (CEST)
From:	jesper@...gh.cc
To:	"Christoph Hellwig" <hch@...radead.org>
Cc:	linux-kernel@...r.kernel.org, aradford@...il.com, xfs@....sgi.com
Subject: Re: 2.6.38.8 kernel bug in XFS or megaraid driver with heavy I/O 
     load

> On Tue, Oct 11, 2011 at 11:17:57AM +0200, Anders Ossowicki wrote:
>> Pid: 27512, comm: flush-8:32 Tainted: G        W   2.6.38.8 #1 Dell Inc.
>>  PowerEdge R815/04Y8PT
>> RIP: 0010:[<ffffffff810f8d71>]  [<ffffffff810f8d71>]
>> find_get_pages+0x61/0x110
>
> This is core VM code, and operates purely on on-stack variables except
> for the page cache radix tree nodes / pages.  So this either could be a
> core VM bug that no one has noticed yet, or memory corruption.  Can you
> run memtest86 on the box?

Over the weekend, we have run memtest for 4 hours (50% of the complete
tests according to memtest) and it didnt find anything.

We've also backpatched the raid-driver into 2.6.37 and the problem continued,
so it seems to be related to the driver and/or combinations with hardware.

Jesper
-- 
Jesper

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