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Date:      Tue, 17 Apr 2007 12:44:22 -0400
From:      Kris Kennaway <kris@obsecurity.org>
To:        Jeffrey Goldberg <jeffrey@goldmark.org>
Cc:        questions@freebsd.org
Subject:   Re: Identifying cause of crash
Message-ID:  <20070417164422.GB2664@xor.obsecurity.org>
In-Reply-To: <F7651EFE-B6C1-4D46-991C-11B104E8AB35@goldmark.org>
References:  <F7651EFE-B6C1-4D46-991C-11B104E8AB35@goldmark.org>

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On Tue, Apr 17, 2007 at 11:16:17AM -0500, Jeffrey Goldberg wrote:
> I had a complete system crash this morning sometime shortly after 17/=20
> Apr/2007:08:51:22 -0500.  (from my most active apache log).
>=20
> I can't seem to find any information whatsoever about the crash.  =20
> It's just that a few hours later I noticed that the system was down, =20
> and had to power cycle the box.  There was nothing on the console =20
> except some much older stuff.
>=20
> I'm running 6.2-RELEASE-p3 on VIA C3 Nehemiah (999.52-MHz 686-class CPU)
>=20
> Looking in messages or auth.log I see nothing from around the time of =20
> the crash.  Is there some place else I should look?  I've also =20
> checked logs that are sysloged remotely
>=20
> $ grep '@10' /etc/syslog.conf
> *.err;kern.warning;auth.notice;mail.crit        @10.1.10.131
> security.*                                      @10.1.10.131
> auth.info;authpriv.info                         @10.1.10.131
> *.emerg                                         @10.1.10.131
>=20
> And there is nothing from near the time of the crash there either.
>=20
> So the system appeared to crash before anything could be logged.
>=20
> The system has been running fine since I've had it (a few months =20
> ago), and my most recent kernel rebuild was on April 13 (and then =20
> only to add msdosfs which I needed for USB memory devices).
>=20
> Where should I look next?

Unless you have enabled crashdumps nothing will be logged.  If you
did, or to learn how, see the chapter on kernel debugging in the
developers' handbook.

Kris

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