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From: Brian Clapper <bmc@clapper.org>
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Date: Sun, 19 Oct 2003 22:15:02 -0400
To: Alex Povolotsky <tarkhil@webmail.sub.ru>
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cc: freebsd-stable@freebsd.org
Subject: Re: Repeated panics with 4.8-RELEASE
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On 20 October, 2003, at 00:40 (+0400)
Alex Povolotsky <tarkhil@webmail.sub.ru> wrote:

> Hello!
>
> I'm experiencing repeated (1-4 times a week) non-reproductable panics on 4.8-RELEASE-p13. Actually, they have begun with 4.5-RELEASE, and I hoped that upgrade helped me.
>
> Fatal trap 12: page fault while in kernel mode
> mp_lock = 00000002; cpuid = 0; lapic.id = 03000000
> fault virtual address   = 0x6c

Here's another possibility. A year ago, I saw similar behavior with a brand
new box on which I'd loaded 4.7-RELEASE. The problem was bad RAM, which
memtest86 (www.memtest86.com) confirmed for me. I replaced the memory, and
the problem hasn't recurred since.

- Brian Clapper, http://www.clapper.org/bmc/