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Date:      Wed, 21 Aug 2002 12:16:53 -0700
From:      Seth Murray <smurray@comboard.com>
To:        Greg 'groggy' Lehey <grog@lemis.com>
Cc:        freeBSD-Questions@FreeBSD.Org
Subject:   Re: Spontaneous Reboots, Clock thrown off
Message-ID:  <8D635785-B53A-11D6-95E8-0003936F0B0A@comboard.com>
In-Reply-To: <20020821081556.GK78608@wantadilla.lemis.com>

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On Wednesday, August 21, 2002, at 01:15 AM, Greg 'groggy' Lehey wrote:

> On Tuesday, 20 August 2002 at 23:01:41 -0700, Seth Murray wrote:
>> Our new FBSD 4.6 server is spontaneously rebooting a couple times a day.
>> No related log entries -- just resets without warnings or messages.
>
> Are you getting any processes core dumping at unrelated times?

The only dropped process I'm getting is an occasional httpd drop on signal 
10 or 11 (to my recollection).

>> When it powers back up, the CMOS clock is still correct, but the
>> system clock is off by (apparently) random amounts -- usually less
>> than 12 hours.
>
> I don't understand this.  The system clock gets reloaded from the
> system clock.  Is the time zone file changed?

I don't understand it either.

:)

If I type "date" after the event, it still shows the correct time zone 
(PDT), but the clock will be off.

I am getting "Invalid Time" warnings on EVERY startup, even when the clock 
is dead-on.

Since this started, I've activated ntpd to try to correct the clock issue,
  but suspect I'm treating a symptom rather than the cause.

It is possible that I misremember the CMOS-issue. When I become aware that 
it has restarted itself, I'll check the "date," then "fastboot" and check 
the CMOS clock in the BIOS setup console during startup. It is usually 
pretty close then, even though the immediately-previous "date" showed the 
time being several hours off.

>> Running 4.6-Release. TYAN S2462 board with dual AMD 1666MHz
>> processors.  All hardware is new. Not finding anything telling in
>> any of the logs, I'm beginning to guess at a power supply or board
>> level problem. We're running current releases of apache mod_ssl,
>> postgresql, mod_php. Nothing else fancy. No unusual cron stuff.
>
> Hmm.  We've seen problems related to (but probably not caused by) AMD
> processors in the past.  I have one here (850 MHz Duron) which won't
> run 4.6 reliably.  Have you tried other versions of FreeBSD?

I was running 4.3, then 4.5 on a similar board, but with 1GHz Athlons. No 
problems (till the room overheated one day, then I lost a hard drive).

>   Are you getting messages about IDE problems?

Yes. When the machine starts back up from "the event," the file system 
reports multiple problems. It's almost as if someone just pulled the plug 
and then plugged it back in. I'm not getting any other file system related 
errors.

SHM


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