From owner-freebsd-stable@FreeBSD.ORG  Thu Dec  8 08:09:50 2011
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 98ECE106566B
	for <freebsd-stable@freebsd.org>; Thu,  8 Dec 2011 08:09:50 +0000 (UTC)
	(envelope-from marck@rinet.ru)
Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68])
	by mx1.freebsd.org (Postfix) with ESMTP id 1BFBB8FC0A
	for <freebsd-stable@freebsd.org>; Thu,  8 Dec 2011 08:09:49 +0000 (UTC)
Received: from localhost (localhost [127.0.0.1])
	by woozle.rinet.ru (8.14.4/8.14.4) with ESMTP id pB889mjo042446;
	Thu, 8 Dec 2011 12:09:48 +0400 (MSK) (envelope-from marck@rinet.ru)
Date: Thu, 8 Dec 2011 12:09:48 +0400 (MSK)
From: Dmitry Morozovsky <marck@rinet.ru>
To: Kostik Belousov <kostikbel@gmail.com>
In-Reply-To: <alpine.BSF.2.00.1112080207410.21555@woozle.rinet.ru>
Message-ID: <alpine.BSF.2.00.1112081208200.21555@woozle.rinet.ru>
References: <alpine.BSF.2.00.1112071348290.44987@woozle.rinet.ru>
	<20111207133035.GF50300@deviant.kiev.zoral.com.ua>
	<alpine.BSF.2.00.1112072150380.16929@woozle.rinet.ru>
	<20111207182030.GI50300@deviant.kiev.zoral.com.ua>
	<alpine.BSF.2.00.1112080207410.21555@woozle.rinet.ru>
User-Agent: Alpine 2.00 (BSF 1167 2008-08-23)
X-NCC-RegID: ru.rinet
X-OpenPGP-Key-ID: 6B691B03
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7
	(woozle.rinet.ru [0.0.0.0]); Thu, 08 Dec 2011 12:09:48 +0400 (MSK)
Cc: freebsd-stable@freebsd.org
Subject: Re: tmpfs deadlock on stable/9
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: Thu, 08 Dec 2011 08:09:50 -0000

On Thu, 8 Dec 2011, Dmitry Morozovsky wrote:

> > > It is available at http://bsd.woozle.net/tmpfs-lock-20111207.txt (~260k)
> > > 
> > > BTW, at least some of the debugger commands referenced (show locks, show 
> > > alllocks) are no longer exist
> > This means that you do not have witness in your kernel.
> > Look at the reference I pointed you once more.
> 
> Ah I see, my bad.  I'll test this with WITNESS-enabled kernel tomorrow and 
> return with updated results.

Hmm, I'd rebuilt kernel with WITNESS/WITNESS_SKIPSPIN and can't reproduce this 
deadlock.  Will try further.

-- 
Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer:                                 marck@FreeBSD.org ]
------------------------------------------------------------------------
*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
------------------------------------------------------------------------