From owner-freebsd-current@FreeBSD.ORG  Wed Jan 28 22:56:32 2004
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 73BD616A4CE; Wed, 28 Jan 2004 22:56:32 -0800 (PST)
Received: from gw.catspoiler.org (217-ip-163.nccn.net [209.79.217.163])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id B29EE43D3F; Wed, 28 Jan 2004 22:56:29 -0800 (PST)
	(envelope-from truckman@FreeBSD.org)
Received: from FreeBSD.org (mousie.catspoiler.org [192.168.101.2])
	by gw.catspoiler.org (8.12.9p2/8.12.9) with ESMTP id i0T6uJ7E085865;
	Wed, 28 Jan 2004 22:56:23 -0800 (PST)
	(envelope-from truckman@FreeBSD.org)
Message-Id: <200401290656.i0T6uJ7E085865@gw.catspoiler.org>
Date: Wed, 28 Jan 2004 22:56:19 -0800 (PST)
From: Don Lewis <truckman@FreeBSD.org>
To: emoe@cox.net
In-Reply-To: <IJEJIDFLPIJEPPAPEIHCEEDACEAA.emoe@cox.net>
MIME-Version: 1.0
Content-Type: TEXT/plain; charset=us-ascii
cc: freebsd-current@FreeBSD.org
cc: jhb@FreeBSD.org
Subject: Re: 5.2-RELEASE panic in turnstile_wait
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: Thu, 29 Jan 2004 06:56:32 -0000

On 29 Jan, Erik Moe wrote:
> Humm....  crashing the stack for fun and profit....
> 
> 
> (kgdb) frame 7
> #7  0xc0546015 in _mtx_lock_sleep (m=0xc69e0aa8, opts=0,
>     file=0xc06f3a10 "/usr/src/sys/kern/kern_exit.c", line=453)
>     at /usr/src/sys/kern/kern_mutex.c:476
> 476			turnstile_wait(ts, &m->mtx_object, mtx_owner(m));
> (kgdb) p *m
> $1 = {mtx_object = {lo_class = 0x0, lo_name = 0x0, lo_type = 0x0,
>     lo_flags = 0, lo_list = {tqe_next = 0x0, tqe_prev = 0x0},
>     lo_witness = 0x0}, mtx_lock = 0, mtx_recurse = 0}

Hmn, lots of zeros.  Would you happen to be using audio hardware with
vchans?