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Date: Wed, 13 Aug 1997 10:52:12 -0700
From: Julian Elischer <julian@whistle.com>
Organization: Whistle Communications
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To: Joachim Jaeckel <Joachim.Jaeckel@d.kamp.net>
CC: Sergei Barbarash <sgt@deltathree.com>, freebsd-questions@FreeBSD.ORG
Subject: Re: FreeBSD box freezing or rebooting
References: <XFMail.970813002950.Joachim.Jaeckel@d.kamp.net>
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Joachim Jaeckel wrote:
> 
> On 12-Aug-97 Sergei Barbarash wrote:
> >Hello,
> >
> >I use FreeBSD intensively for about two years now, and I never had this
> >problem:
> >
> >My FreeBSD box at work constantly reboots or freezes on its own behalf. I have
> >no idea what is the problem. No logs, nothing.
> >
> >I changed my RAM recently and tested all the hardware, it appears to be OK. My
> >question is - are there known unstable portions of 2.2.2-RELEASE kernel which
> >may cause this sort of problem, or should I check my hardware again?
> >

you should run with a serial console, attached to another PC
(or even a printer)that way you can catch any transient panic
 messages..
also make sure you have core dumps enabled.
after that we should have some clues

don't forget to enable 'savecore' on reboots
or the core file will be lost.


those would be a good start..

> 
> Some weeks ago I've had the same problem. (It reboots if I was working with the
> bare unix-system and it freezes if I was working with *X*. Is that's youre
> problem? Try to enable the Kernel-Debugger and wait (not realy wait ...)
> for the message "... page fault while in kernel mode ...". On my PC this
> message comes up sometimes after minutes and sometimes after 15 hours.
> 
> They changed nearly everything in my PC (the motherboard, the processor, the RAM
> , the HD and last but not least: the CACHE-Memory!!!) after all, my PC works
> fine with the same BSD-Release than before. I don't really know, but I could
> bet that it was the CACHE in my case. Maybe you could try to run your PC
> without the CACHE for a test.
> 
> >
> >Thanks in advance for any help.
> >
> 
> Hope that helps! :-)
> 
> Ciao, Joachim.
> ----------------------------------
> E-Mail: Joachim Jaeckel <Joachim.Jaeckel@d.kamp.net>
> Date: 13-Aug-97
> Time: 00:16:17
> 
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