2.6.38.8 kernel bug in XFS or megaraid driver with heavy I/O load

[jesper at krogh.cc]

> 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