Date: Mon, 09 Apr 2001 12:21:07 +0400 From: Dmitry Samersoff <dms@wplus.net> To: s2209866@cse.unsw.edu.au Cc: freebsd-net@FreeBSD.ORG, freebsd-question@FreeBSD.ORG Subject: Re: how to see what happen before kernel crash? Message-ID: <3AD170F3.976E12CB@wplus.net> References: <NDBBJCEECLLLJHEBJOGDEEKGEPAA.s2209866@cse.unsw.edu.au>
next in thread | previous in thread | raw e-mail | index | archive | help
> Daniel Wong wrote:
>
> Hi,
>
> My kernel periodically crashes on me, is there a way to capture the
> kernel output before the kernel reboots itself ? I suspect it might be
> something to do with my changes in the kernel. But I don't know what
> might be causing it.
Here is method I used last two weeks to go throupgh the similar problem.
1. Compile kernel with debug enable
2. Check whether you have enough free space on /var/crash
3. Enable dump in /etc/rc.conf
3. When kernel died press <Ctrl-Alt-ESC>
and then try to debug it or just type panic, and
analyze crash dump saved in var crash ...
--
Dmitry Samersoff, dms@wplus.net, ICQ:3161705
http://devnull.wplus.net
* There will come soft rains ...
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3AD170F3.976E12CB>