Messages in this thread | | | Date | Tue, 11 Oct 2011 18:07:40 +0200 | From | Jesper Krogh <> | Subject | Re: 2.6.38.8 kernel bug in XFS or megaraid driver with heavy I/O load |
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On 2011-10-11 16:13, Anders Ossowicki wrote: > On Tue, Oct 11, 2011 at 03:34:48PM +0200, Christoph Hellwig wrote: >> 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? > Unfortunately not, as it is a production server. Pulling it out to memtest 256G > properly would take too long. But it seems unlikely to me that it should be > memory corruption. The machine has been running with the same (ecc) memory for > more than a year and neither the service processor nor the kernel (according to > dmesg) has caught anything before this. It would be a rare (though I admit not > impossible) coincidence if we got catastrophic, undetected memory corruption a > week after attaching a new raid controller with a new disk array. A sidenote that Anders forgot.. the system was stable for very long time, but on a 2.6.37 kernel. We upgraded to 2.6.38 to get the raid-controller support and then it crashed.
Now we're trying to get the new hardware in the air on 2.6.37 with backpatched megaraid driver for the RAID-controller.
-- Jesper
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