From owner-freebsd-current@FreeBSD.ORG  Tue Oct 21 01:28:13 2003
Return-Path: <owner-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 66F8A16A4B3
	for <freebsd-current@freebsd.org>;
	Tue, 21 Oct 2003 01:28:13 -0700 (PDT)
Received: from newtrinity.zeist.de (newtrinity.zeist.de [217.24.217.8])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 3F17E43FBD
	for <freebsd-current@freebsd.org>;
	Tue, 21 Oct 2003 01:28:12 -0700 (PDT)
	(envelope-from marius@newtrinity.zeist.de)
Received: from newtrinity.zeist.de (localhost [127.0.0.1])
	h9L8SAcJ016342;	Tue, 21 Oct 2003 10:28:10 +0200 (CEST)
	(envelope-from marius@newtrinity.zeist.de)
Received: (from marius@localhost)
	by newtrinity.zeist.de (8.12.10/8.12.10/Submit) id h9L8S5AJ016341;
	Tue, 21 Oct 2003 10:28:05 +0200 (CEST)
	(envelope-from marius)
Date: Tue, 21 Oct 2003 10:28:05 +0200
From: Marius Strobl <marius@alchemy.franken.de>
To: Paulius Bulotas <paulius@kaktusas.org>
Message-ID: <20031021102805.C9855@newtrinity.zeist.de>
References: <20031021072711.GA49926@kaktusas.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2.5.1i
In-Reply-To: <20031021072711.GA49926@kaktusas.org>;
	from paulius@kaktusas.org on Tue, Oct 21, 2003 at 10:27:11AM +0300
X-AntiVirus: checked by AntiVir Milter 1.0.6; AVE 6.22.0.1; VDF 6.22.0.11
cc: freebsd-current@freebsd.org
Subject: Re: panic with cdrecord-devel @ Mon Oct 20 21:28:57 EEST 2003
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
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: Tue, 21 Oct 2003 08:28:13 -0000

On Tue, Oct 21, 2003 at 10:27:11AM +0300, Paulius Bulotas wrote:
> Hello,
> 
> 5.1-CURRENT #0: Mon Oct 20 21:28:57 EEST 2003
> 
> % cdrecord -scanbus
> panics, and trace looks like:
> vmapbuf
> cam_periph_mapmem
> xptioctl
> spec_ioctl
> spec_vnoperate
> vn_ioctl
> ioctl
> syscall(2f,2f,2f,ffffffff,3)
> Xint0x80_syscall
> 
> Any ideas?
> 

I was told that a `camcontrol devlist` triggers a panic in
sys/kern/vfs_bio.c:3729 on recent -current and that turning off
INVARIANTS and WITNESS avoids it. This may be related.