From owner-freebsd-stable@FreeBSD.ORG  Thu Feb  1 19:30:31 2007
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Date: Thu, 1 Feb 2007 14:30:30 -0500
From: Craig Rodrigues <rodrigc@crodrigues.org>
To: freebsd-stable@freebsd.org
Message-ID: <20070201193030.GA29508@crodrigues.org>
References: <20070131072435.GR63341@manor.msen.com>
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Subject: Re: Filesystem hang on 3ware 6.2 system
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On Thu, Feb 01, 2007 at 02:24:54PM -0500, Michael R. Wayne wrote:
> As I read the "kernel deadlock debugging chapter", I see that it
> operates on core dumps.  Once the machine enters this state, my

You didn't read properly:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html

That section mentions using ddb and the following ddb commands:
"ps", "show pcpu", "show allpcup", "show locks", "show alllocks", 
"show lockedvnods", "show alltrace".

It doesn't mention core files.

-- 
Craig Rodrigues        
rodrigc@crodrigues.org