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Date:      Tue, 17 Mar 2009 08:59:02 +0200
From:      Mikolaj Golub <to.my.trociny@gmail.com>
To:        ""anborn@list.ru"" <anborn@list.ru>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: FreeBSD7.1/i386 crash (fatal trap 12)
Message-ID:  <81ljr48wjt.fsf@zhuzha.ua1>
In-Reply-To: <E1LjQ52-000LW3-00.anborn-list-ru@f47.mail.ru> (anborn@list.ru's message of "Tue\, 17 Mar 2009 06\:35\:04 %2B0300")
References:  <E1LjQ52-000LW3-00.anborn-list-ru@f47.mail.ru>

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On Tue, 17 Mar 2009 06:35:04 +0300 anborn@list.ru wrote:

> What can I do with it? I don`t have experience in using gdb or programming on C.

I suppose your kernel is built with "makeoptions DEBUG=-g".

Then enable kernel crash dump:

echo 'dumpdev="AUTO"' >> /etc/rc.conf
/etc/rc.d/dumpon start

After panic, get the baktrace from the dump using instructions from this page:

http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-gdb.html

Or just run crashinfo and extract bt from generated core.txt.

Post bt here or to freebsd-hackers.

-- 
Mikolaj Golub



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