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Date:      Tue, 4 Jun 2002 18:11:46 -0400
From:      "Michael Scheidell" <scheidell@secnap.net>
To:        "Oliver Crow" <ocrow@simplexity.net>
Cc:        <freebsd-stable@FreeBSD.ORG>
Subject:   Re: Clockwork 24 hour crash in 4.5-RELEASE-p5
Message-ID:  <00c601c20c14$d1a6bd40$2801010a@MIKELT>
References:  <20020602134713.B2539@mikea.ath.cx> <20020602125640.T79925-100000@iguana.simplexity.net>

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----- Original Message -----
From: "Oliver Crow" <ocrow@simplexity.net>
Newsgroups: local.freebsd.stable
Sent: Sunday, June 02, 2002 4:05 PM
Subject: Re: Clockwork 24 hour crash in 4.5-RELEASE-p5


>
> On Sun, 2 Jun 2002, mikea wrote:
>
> > On Sat, Jun 01, 2002 at 08:37:21PM -0700, Oliver Crow wrote:
> > >
> > > I have a FreeBSD 4.5-p5 system that's crashing reliably every 24 hours
+/-
> > > a few minutes.  It's been doing this ever since I compiled a 4.5-p4
kernel
> > > on March 25th.  I cvsup'd to 4.5-p5 and recompiled, but it's still
> > > crashing.

Interesting story but true:

A few years back, a client of ours had a z80 based mpm based system with
three vt100 terminals.
SOMETIME AROUND     5:00PM, EACH DAY (give or take a fews mins) the vt100
terminal on the main system blinked a little and the whols system crashed,
locking out whatever anyone was doing on the other two as well.

They were on a ups, they were on surgr suppressors, the serial cables were
clean, eiii specs, we slowd down the baud rate, still happened.

guess what:  there was a postage meter (read BIG MF MAGNET) on the other
side of the wall.
5pm, just before going home, the receptionist whould 'ch-chunk' about 40
letters.

--
Michael Scheidell
SECNAP Network Security, LLC
(561) 368-9561 scheidell@secnap.net
http://www.secnap.net

> >
> > Either I'm missing data showing the crash time, or you didn't
> > include it. When does this crash happen? Is it during a burst
> > of cron-spawned activity?
>
> It doesn't crash during a burst of cron activity, no.  It doesn't occur at
> exactly the same time each day, it moves around by a few minutes each
> time.  If you reboot manually it'll crash at the same time the next day
> (ie, 24 hours after the reboot).
>
> Here's the log of reboots during April.  You see it crashed every day
> between the first and the 16th.  Then it didn't crash for 10 days.  I
> rebooted manually on the 26th at 20:19, and it started crashing every
> day again.
>
> # last -f /var/log/wtmp.1 reboot
> reboot           ~                         Tue Apr 30 20:17
> reboot           ~                         Mon Apr 29 20:17
> reboot           ~                         Sun Apr 28 20:19
> reboot           ~                         Sat Apr 27 20:19
> reboot           ~                         Fri Apr 26 20:19
> reboot           ~                         Fri Apr 26 19:49
> reboot           ~                         Tue Apr 16 11:10
> reboot           ~                         Tue Apr 16 11:03
> reboot           ~                         Mon Apr 15 18:33
> reboot           ~                         Sun Apr 14 18:37
> reboot           ~                         Sat Apr 13 18:41
> reboot           ~                         Fri Apr 12 18:45
> reboot           ~                         Thu Apr 11 18:48
> reboot           ~                         Thu Apr 11 18:00
> reboot           ~                         Tue Apr  9 19:50
> reboot           ~                         Mon Apr  8 19:54
> reboot           ~                         Sun Apr  7 19:58
> reboot           ~                         Sat Apr  6 19:00
> reboot           ~                         Fri Apr  5 18:58
> reboot           ~                         Thu Apr  4 18:58
> reboot           ~                         Wed Apr  3 19:02
> reboot           ~                         Tue Apr  2 19:00
> reboot           ~                         Mon Apr  1 19:00
>
>
>
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