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Date: Sat, 15 Apr 2006 13:59:12 -0700
From: Andrew Morton <akpm@osdl.org>
To: Tomas Szepe <szepe@pinerecords.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.16.5 smp oops in find_or_create_page()
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Tomas Szepe <szepe@pinerecords.com> wrote:
>
> One of our servers (a p3 smp machine) with 2.6.16.5 vanilla crashed last
>  night.  Kernel output enclosed below.
> 
>  -- 
>  Tomas Szepe <szepe@pinerecords.com>
> 
>  Apr 15 03:56:57 louise kernel: Unable to handle kernel paging request at virtual address 00008000

A single bit set in a well-tested codepath.  Most likely this is a hardware
failure (memory, DMA controller, dodgy power supply, etc).

You should run memtest86 on that machine for 24 hours.