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Date: Wed, 03 Oct 2007 09:34:19 +0400
From: "Andrey V. Elsukov" <bu7cher@yandex.ru>
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To: Steven Schlansker <stevenschlansker@berkeley.edu>
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Cc: freebsd-current@freebsd.org
Subject: Re: Repeatable kernel panic on -CURRENT using ZFS over SATA
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Steven Schlansker wrote:
> Dmesg with errors here:
> http://soda.csua.berkeley.edu/~steven/dmesg.txt
> 
> The eventual end result:
> http://soda.csua.berkeley.edu/~steven/Image053.jpg
> The only references I can find to similar problems were either not 
> resolved, or seemed to be related to a chipset which I am not using.
> 
> Is this a known issue?  How can I make this machine stable?  Is there 
> any more information I can provide to aid debugging?  Thanks so very much,
> Steven Schlansker

In the next time when you get panic try "tr" DDB command and photo
will be more informative. Also, look into the following article:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html

You can get a kernel crash dump and show backtrace from kgdb.

-- 
WBR, Andrey V. Elsukov