From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1752713Ab2GPPKm (ORCPT <rfc822;w@1wt.eu>);
	Mon, 16 Jul 2012 11:10:42 -0400
Received: from mailout-de.gmx.net ([213.165.64.23]:47977 "HELO
	mailout-de.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with SMTP id S1751085Ab2GPPKk (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Mon, 16 Jul 2012 11:10:40 -0400
X-Authenticated: #14349625
X-Provags-ID: V01U2FsdGVkX1+dMC5vKD2dtIPYYDs9gdolqcUcgQXuIPGx0rqyWw
	K1e5/vYz5KivZB
Message-ID: <1342449340.7659.69.camel@marge.simpson.net>
Subject: Re: Deadlocks due to per-process plugging
From: Mike Galbraith <efault@gmx.de>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Jan Kara <jack@suse.cz>, Jeff Moyer <jmoyer@redhat.com>,
        LKML <linux-kernel@vger.kernel.org>, linux-fsdevel@vger.kernel.org,
        Tejun Heo <tj@kernel.org>, Jens Axboe <jaxboe@fusionio.com>,
        mgalbraith@suse.com
Date: Mon, 16 Jul 2012 16:35:40 +0200
In-Reply-To: <1342437873.7659.60.camel@marge.simpson.net>
References: <20120711133735.GA8122@quack.suse.cz>
	 <x49ehoii8ps.fsf@segfault.boston.devel.redhat.com>
	 <20120711201601.GB9779@quack.suse.cz>
	 <alpine.LFD.2.02.1207121552111.32033@ionos>
	 <20120713123318.GB20361@quack.suse.cz>
	 <alpine.LFD.2.02.1207131444490.32033@ionos>
	 <20120713144622.GB28715@quack.suse.cz>
	 <alpine.LFD.2.02.1207151057010.32033@ionos>
	 <1342343673.28142.2.camel@marge.simpson.net>
	 <1342405366.7659.35.camel@marge.simpson.net>
	 <alpine.LFD.2.02.1207161058550.32033@ionos>
	 <1342432094.7659.39.camel@marge.simpson.net>
	 <1342433303.7659.42.camel@marge.simpson.net>
	 <alpine.LFD.2.02.1207161216200.32033@ionos>
	 <1342437873.7659.60.camel@marge.simpson.net>
Content-Type: text/plain; charset="UTF-8"
X-Mailer: Evolution 3.2.3 
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0
X-Y-GMX-Trusted: 0
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Mon, 2012-07-16 at 13:24 +0200, Mike Galbraith wrote:

> Box disagrees.
> 
> Waiting for device /dev/cciss/c0d0p6 to appear:  ok
> fsck from util-linux 2.19.1
> [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/cciss/c0d0p6 
> SLES11: clean, 141001/305824 files, 1053733/1222940 blocks
> fsck succeeded. Mounting root device read-write.
> Mounting root /dev/cciss/c0d0p6
> mount -o rw,acl,user_xattr -t [   27.558934] jbd: disagrees about
> version of symbol rt_spin_trylock
> ext3 /dev/cciss/[   27.558938] jbd: Unknown symbol rt_spin_trylock (err
> -22)
> c0d0p6 /root
> [   27.558959] jbd: disagrees about version of symbol
> __rt_spin_lock_init
> [   27.558961] jbd: Unknown symbol __rt_spin_lock_init (err -22)
> [   27.558986] jbd: disagrees about version of symbol rt_spin_unlock
> [   27.558988] jbd: Unknown symbol rt_spin_unlock (err -22)
> [   27.558990] jbd: disagrees about version of symbol rt_spin_lock
> [   27.558992] jbd: Unknown symbol rt_spin_lock (err -22)
> [   27.559004] jbd: disagrees about version of symbol __rt_mutex_init
> [   27.559006] jbd: Unknown symbol __rt_mutex_init (err -22)
> modprobe: FATAL: Error inserting ext3
> (/lib/modules/3.0.35-rt56-rt/extra/ext3.ko): Invalid argument
> 
> mount: unknown filesystem type 'ext3'
> could not mount root filesystem -- exiting to /bin/sh
> $

Weird.  Make mrproper didn't help.  Whacking every trace that the damn
tree, kernel and modules ever existed did.  Box is grinding away at ext3
dbench testcase.  At 7 hours per run, it'll take a while.  This time
tomorrow box should still be happily grinding away.

-Mike