From owner-freebsd-current@FreeBSD.ORG  Mon Sep 22 16:47:51 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 82E0B16A4B3; Mon, 22 Sep 2003 16:47:51 -0700 (PDT)
Received: from gw.fosburgh.org (user-0cetsgd.cable.mindspring.com
	[24.238.242.13])	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 9B90B43FE9; Mon, 22 Sep 2003 16:47:48 -0700 (PDT)
	(envelope-from wotan@fosburgh.org)
Received: by gw.fosburgh.org (Postfix, from userid 1001)
	id 436EDA80D; Mon, 22 Sep 2003 18:48:16 -0500 (CDT)
From: Jonathan E Fosburgh <jonathan@fosburgh.org>
To: Andreas Klemm <andreas@freebsd.org>,
	FreeBSD Current <freebsd-current@freebsd.org>
Date: Mon, 22 Sep 2003 18:48:14 -0500
User-Agent: KMail/1.5.2
References: <1064253832.19024.48.camel@tchoubou.scientiae.net>
	<20030922212857.GA23087@titan.klemm.apsfilter.org>
In-Reply-To: <20030922212857.GA23087@titan.klemm.apsfilter.org>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200309221848.15150.jonathan@fosburgh.org>
Subject: Re: panic: lockmgr: locking against myself (current of 09-20th)
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: Mon, 22 Sep 2003 23:47:51 -0000

On Monday 22 September 2003 04:28 pm, Andreas Klemm wrote:

> The panic here is:
>
> (kgdb) symbol-file kernel.debug
> Reading symbols from kernel.debug...done.
> (kgdb) core-file /var/crash/vmcore.0
> No kernel exec file specified
> (kgdb) exec-file kernel
> (kgdb) core-file /var/crash/vmcore.0
> panic: lockmgr: locking against myself
> panic messages:
> ---
> panic: lockmgr: locking against myself
> panic: from debugger
> Uptime: 10m26s
> Dumping 191 MB
>  16 32 48 64 80 96 112 128 144 160 176

I had a similar panic on 5.0-R.  Do you happen to have any snapshots on any of 
the filesystems to which you might be writing at the time of the panic? I 
don't know how I determined it, but I found that the panic was the result of 
a snapshot on my /var filesystem.  Removing the snapshot solved the panic.

-- 
Jonathan Fosburgh
AIX/SAN Administrator
UT MD Anderson Cancer Center
Houston, TX
Home Page:
http://www.fosburgh.org