From owner-freebsd-current@FreeBSD.ORG  Fri Aug 19 14:44:42 2005
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: freebsd-current@freebsd.org
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 10A5516A41F
	for <freebsd-current@freebsd.org>; Fri, 19 Aug 2005 14:44:42 +0000 (GMT)
	(envelope-from gibbs@scsiguy.com)
Received: from aslan.scsiguy.com (mail.scsiguy.com [63.229.232.106])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 5BC7343D48
	for <freebsd-current@freebsd.org>; Fri, 19 Aug 2005 14:44:41 +0000 (GMT)
	(envelope-from gibbs@scsiguy.com)
Received: from [10.0.0.90] (oriondc.dsl.frii.net [216.17.137.18])
	(authenticated bits=0)
	by aslan.scsiguy.com (8.13.3/8.13.3) with ESMTP id j7JEiYKH069108
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
	Fri, 19 Aug 2005 08:44:38 -0600 (MDT)
	(envelope-from gibbs@scsiguy.com)
Date: Fri, 19 Aug 2005 08:44:29 -0600
From: "Justin T. Gibbs" <gibbs@scsiguy.com>
To: Marian Hettwer <MH@kernel32.de>, "Justin T. Gibbs" <gibbs@scsiguy.com>
Message-ID: <3F5D63052EDC670D1C98312F@[10.0.0.90]>
In-Reply-To: <4305E4A3.6040902@kernel32.de>
References: <4305967B.8010909@kernel32.de>
	<435838B88932CE9C36A18199@aslan.scsiguy.com>
	<4305E4A3.6040902@kernel32.de>
X-Mailer: Mulberry/3.1.6 (Win32)
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Cc: freebsd-current@freebsd.org
Subject: Re: Adaptec AIC-7901 (ahd) broken with 6.0-BETA2
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: "Justin T. Gibbs" <gibbs@scsiguy.com>
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 19 Aug 2005 14:44:42 -0000

>> It looks like the system was able to talk to the controller and your
>> drive just fine, but hung later.  Can you break into the debugger
>> and get a stack trace of where the system is hung?
>>
> Pardon me, but how do I break into the debugger ? :)
> I know, if I'm using -CURRENT I should know how to do it... could you
> point me at the right direction anyway ? :-)

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

> Even if I could break into debugger, I would need to get a serial console
> working, otherwise a stack trace could be quite hard to get. I don't
> think I want to type this by hand...

The top few functions are likely all that are important.  <Scroll-Lock> 
followed by
PgUp is your friend.

--
Justin