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Date:      Sun, 17 May 2009 07:39:46 -0400
From:      Glen Barber <glen.j.barber@gmail.com>
To:        Doug Lee <dgl@dlee.org>, freebsd-questions@freebsd.org
Subject:   Re: 4.11 panic every 23 hours 55 minutes or so
Message-ID:  <4ad871310905170439o678e2a9dp1c09be26ed9afc75@mail.gmail.com>
In-Reply-To: <20090517110657.GC2706@mini.local>
References:  <20090517110657.GC2706@mini.local>

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On Sun, May 17, 2009 at 7:06 AM, Doug Lee <dgl@dlee.org> wrote:
> One of the weirder things I've seen in a while here...
>
> OS: FreeBSD 4.11 (yeah I know, old, but generally stable)
> CPU: Intel(R) Pentium(R) 4 CPU 2.00GHz
> real memory =A0=3D 536608768 (524032K bytes)
> Hds: IDE
>

Do you by chance have the kernel built with debugging enabled?

> Problem: =A0Ever since a suspitious power outage (I say suspitious
> because we think a surge was also involved), this box has been
> exhibiting kernel panics about every 23 hours 55 minutes, give or
> take about 4 minutes either way. =A0Obviously hardware is suspect,
> and hopefully in line for upgrade; but as FreeBSD has always proven
> so stable for me, I'm curious what on earth could cause this sort
> of regular panic?
>
> It's not time of day; if I reboot at 2:00 AM, 3:55 PM, or any other
> time, it's 23:55 or so later I get a panic, whenever that may be.
> I think this rules out cron jobs, external attacks, and load-based
> issues.
>

Perhaps a bad CMOS battery causing the system time to become
corrupted?  (I know it's a long shot...)


--=20
Glen Barber



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