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Date:      Thu, 6 Jan 2005 17:32:49 +0200
From:      Giorgos Keramidas <keramida@ceid.upatras.gr>
To:        "J.D. Bronson" <jbronson@wixb.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: finally a crash dump on 5.3
Message-ID:  <20050106153249.GA27782@gothmog.gr>
In-Reply-To: <6.2.0.14.2.20050106085144.02172c88@cheyenne.wixb.com>
References:  <6.2.0.14.2.20050106085144.02172c88@cheyenne.wixb.com>

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On 2005-01-06 08:56, "J.D. Bronson" <jbronson@wixb.com> wrote:
> I was up for 2wks and today saw this:
>
> Fatal trap 12 - page fault while in kernel mode
> CPUID 0 APIC ID 0
> Fault write address = 0x418ad66c
> Fault code = supervisor write, page not present
> [...]
>
> What do I do with this information now that I finally have it ?

During the next boot, savecore should save a crash dump in /var/crash
(assuming one was successfully saved in swap when the crash happened).

Look at the Developers Handbook for details about obtaining a stack
trace of the kernel at the moment of the crash:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-gdb.html



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