From owner-freebsd-stable@FreeBSD.ORG  Sat Jan 19 13:52:14 2008
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id AECA916A420
	for <freebsd-stable@freebsd.org>; Sat, 19 Jan 2008 13:52:14 +0000 (UTC)
	(envelope-from kris@FreeBSD.org)
Received: from weak.local (freefall.freebsd.org [IPv6:2001:4f8:fff6::28])
	by mx1.freebsd.org (Postfix) with ESMTP id D141B13C45A;
	Sat, 19 Jan 2008 13:52:11 +0000 (UTC)
	(envelope-from kris@FreeBSD.org)
Message-ID: <47920088.4040400@FreeBSD.org>
Date: Sat, 19 Jan 2008 14:52:08 +0100
From: Kris Kennaway <kris@FreeBSD.org>
User-Agent: Thunderbird 2.0.0.9 (Macintosh/20071031)
MIME-Version: 1.0
To: Jakub Siroky <jakob@dev.citybikes.cz>
References: <20080118120140.2a8170a0@dev>	<47913252.3080404@FreeBSD.org>
	<20080119121758.45e90313@dev>
In-Reply-To: <20080119121758.45e90313@dev>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-stable@freebsd.org
Subject: Re: panic when copying to ext2fs
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 19 Jan 2008 13:52:14 -0000

Jakub Siroky wrote:
> I have tried these options in the config, but with same results
> (unstoppable dump and crash):
> 
> makeoptions DEBUG=-g
> options         WITNESS
> options         WITNESS_KDB
> options         KDB
> options         KDB_TRACE
> options         DIAGNOSTIC
> options KDB 
> options DDB 
> options GDB 
> options     INVARIANTS
> options     INVARIANT_SUPPORT
> options     DEBUG_LOCKS
> options     DEBUG_VFS_LOCKS
> 
> I haven't tried debugging via serial port, however.
> 
> And the problem can be reproduced on ext2fs volume of any size.
> 
> Next step would be original GENERIC config.

What do you mean by "unstoppable"?  Can you not break to DDB from the 
console?

Kris