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Date: Fri, 1 Oct 2004 17:34:23 -0700
From: Kris Kennaway <kris@obsecurity.org>
To: Jim Durham <durham@jcdurham.com>
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cc: freebsd-hackers@freebsd.org
cc: Kris Kennaway <kris@obsecurity.org>
Subject: Re: Sudden Reboots
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On Fri, Oct 01, 2004 at 08:23:04PM -0400, Jim Durham wrote:

> > Actual "spontaneous reboots" are very rare=20
>=20
> These are very rare.... except they seem to happen about once a day for a=
=20
> while and then stop... very strange..
>=20
> > and usually caused by hardware problems (e.g. faulty power supply,
> > overheating CPU, bad RAM).=20
>=20
> Possible, but if so, the hardware fixed itself on the first two boxes I=
=20
> mentioned.=20

Consistent with marginal hardware issues (heating, poorly seated PCI
cards, fluctuating power supply, ...).

> > Enable DDB, and see what happens the next=20
> > time it crashes.
>=20
> I'll try that on the one that's doing it now. Any suggestions as to how t=
o log=20
> this to get the moset info ?

Set up a serial console and use that.  It's well-documented in the
handbook and developer's handbook.

Kris
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