From owner-freebsd-stable@FreeBSD.ORG  Sat Feb 10 17:56:41 2007
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
X-Original-To: stable@freebsd.org
Delivered-To: freebsd-stable@FreeBSD.ORG
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id DF02F16A405
	for <stable@freebsd.org>; Sat, 10 Feb 2007 17:56:40 +0000 (UTC)
	(envelope-from bzeeb-lists@lists.zabbadoz.net)
Received: from transport.cksoft.de (transport.cksoft.de [62.111.66.27])
	by mx1.freebsd.org (Postfix) with ESMTP id 82F9E13C46B
	for <stable@freebsd.org>; Sat, 10 Feb 2007 17:56:40 +0000 (UTC)
	(envelope-from bzeeb-lists@lists.zabbadoz.net)
Received: from transport.cksoft.de (localhost [127.0.0.1])
	by transport.cksoft.de (Postfix) with ESMTP
	id 0F4AD1FFE79; Sat, 10 Feb 2007 18:35:20 +0100 (CET)
Received: by transport.cksoft.de (Postfix, from userid 66)
	id 2EB041FFEF5; Sat, 10 Feb 2007 18:35:07 +0100 (CET)
Received: from maildrop.int.zabbadoz.net (maildrop.int.zabbadoz.net
	[10.111.66.10])
	(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
	(No client certificate requested)
	by mail.int.zabbadoz.net (Postfix) with ESMTP id B59C0444CBF;
	Sat, 10 Feb 2007 17:33:34 +0000 (UTC)
Date: Sat, 10 Feb 2007 17:33:34 +0000 (UTC)
From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
X-X-Sender: bz@maildrop.int.zabbadoz.net
To: Ulrich Spoerlein <uspoerlein@gmail.com>
In-Reply-To: <7ad7ddd90612290214m196c8533tf50ed9204647acda@mail.gmail.com>
Message-ID: <20070210164930.S47107@maildrop.int.zabbadoz.net>
References: <7ad7ddd90612290214m196c8533tf50ed9204647acda@mail.gmail.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
X-Virus-Scanned: by AMaViS cksoft-s20020300-20031204bz on transport.cksoft.de
Cc: bzeeb+freebsd+lor@zabbadoz.net, stable@freebsd.org
Subject: Re: acquiring duplicate lock when mounting nullfs
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, 10 Feb 2007 17:56:41 -0000

On Fri, 29 Dec 2006, Ulrich Spoerlein wrote:

Hi,

> this is on a RELENG_6 while mounting /usr/src and /usr/obj via nullfs
> and doing 'make installkernel installworld'
>
> It is similar to LOR #083, but not quite the same
>
> acquiring duplicate lock of same type: "vnode interlock"
> 1st vnode interlock @ /usr/src/sys/kern/vfs_vnops.c:806
> 2nd vnode interlock @ /usr/src/sys/kern/vfs_subr.c:2036

added to the LOR page with LOD ID 197:
http://sources.zabbadoz.net/freebsd/lor.html#197

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT