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 S1752585Ab0KSKE2 (ORCPT <rfc822;w@1wt.eu>);
	Fri, 19 Nov 2010 05:04:28 -0500
Received: from mail-wy0-f174.google.com ([74.125.82.174]:55225 "EHLO
	mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1751279Ab0KSKE0 convert rfc822-to-8bit (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Fri, 19 Nov 2010 05:04:26 -0500
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=from:to:subject:date:user-agent:cc:references:in-reply-to
         :mime-version:content-type:content-transfer-encoding:message-id;
        b=KlFqxBGLQMrvYb99TaSrk3XCJmy2T/1hSpGphSTArO5lt29tOr5u3ieD2sskcgL24h
         lL8Tgjubq+uJ9r/q8XtKlyvtvEUDOrMZghP76ZuwWryeuTzunD6L8mPcLTFL7qk/iQi2
         wpxXb5f0GV/isFyg/fIddB1fkcAfKF0vXnyXw=
From: Bastien ROUCARIES <roucaries.bastien@gmail.com>
To: Frederic Weisbecker <fweisbec@gmail.com>
Subject: Re: Reiserfs deadlock in  2.6.36
Date: Thu, 18 Nov 2010 23:02:20 +0100
User-Agent: KMail/1.13.5 (Linux/2.6.36-trunk-amd64; KDE/4.4.5; x86_64; ; )
Cc: linux-kernel@vger.kernel.org
References: <201011181650.00152.roucaries.bastien@gmail.com> <20101118163048.GE5374@nowhere>
In-Reply-To: <20101118163048.GE5374@nowhere>
MIME-Version: 1.0
Content-Type: Text/Plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 8BIT
Message-Id: <201011182302.23299.roucaries.bastien@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Le jeudi 18 novembre 2010 17:30:51, Frederic Weisbecker a écrit :
> On Thu, Nov 18, 2010 at 04:49:56PM +0100, Bastien ROUCARIES wrote:
> > Hi,
> 
> > It seems that reiserfs deadlock like in bug #4850 on my machine:
> Hi Bastien,
> 
> This really looks like a hung task detector report.
> Several tasks are stuck in queue_log_writer(), waiting
> to be woken up on the "journal->j_join_wait" event and
> that never happens because the waker is also stuck.
> The problem is your report doesn't show where the waker
> is stuck, but the hung task detector reports it, it just
> did before or after the chunk you've posted.
> 
> If you could provide me the entire report, I could fix this
> easily.

there is something after in my logs
Nov 18 15:27:08 portablebastien kernel: [20040.668744] kded4         D 00000001004a8412     0  2869      1 0x00000000
Nov 18 15:27:08 portablebastien kernel: [20040.668752]  ffff8801114adf60 0000000000000086 ffff880100000000 ffffffff81632020
Nov 18 15:27:08 portablebastien kernel: [20040.668760]  0000000000014940 0000000000014940 ffff880037ad7fd8 0000000000014940
Nov 18 15:27:08 portablebastien kernel: [20040.668770]  0000000000014940 ffff8801114ae238 ffff8801114ae240 ffff8801114adf60
Nov 18 15:27:08 portablebastien kernel: [20040.668780] Call Trace:
Nov 18 15:27:08 portablebastien kernel: [20040.668815]  [<ffffffffa01aab69>] ? queue_log_writer+0x7e/0xac [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.668825]  [<ffffffff8103f7c9>] ? default_wake_function+0x0/0xf
Nov 18 15:27:08 portablebastien kernel: [20040.668840]  [<ffffffffa01ae70a>] ? do_journal_begin_r+0x1d3/0x2c0 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.668848]  [<ffffffff8112c164>] ? __dquot_initialize+0x20/0x16d
Nov 18 15:27:08 portablebastien kernel: [20040.668862]  [<ffffffffa01ae8b4>] ? journal_begin+0xbd/0xfa [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.668875]  [<ffffffffa0196bff>] ? reiserfs_create+0xe6/0x205 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.668883]  [<ffffffff810f4712>] ? generic_permission+0xe/0x8a
Nov 18 15:27:08 portablebastien kernel: [20040.668892]  [<ffffffff810f54b7>] ? vfs_create+0x66/0x88
Nov 18 15:27:08 portablebastien kernel: [20040.668898]  [<ffffffff810f49c5>] ? d_alloc_and_lookup+0x4a/0x67
Nov 18 15:27:08 portablebastien kernel: [20040.668904]  [<ffffffff810f5e6a>] ? do_last+0x268/0x536
Nov 18 15:27:08 portablebastien kernel: [20040.668911]  [<ffffffff810f7aa9>] ? do_filp_open+0x1e4/0x53b
Nov 18 15:27:08 portablebastien kernel: [20040.668919]  [<ffffffff810eb2e0>] ? do_sys_open+0x56/0xe4
Nov 18 15:27:08 portablebastien kernel: [20040.668926]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
Nov 18 15:27:08 portablebastien kernel: [20040.673550] kalarm        D 00000001004a5de3     0  2995      1 0x00000000
Nov 18 15:27:08 portablebastien kernel: [20040.673557]  ffff88011cfced00 0000000000000082 ffff880000000000 ffffffff81632020
Nov 18 15:27:08 portablebastien kernel: [20040.673563]  0000000000014940 0000000000014940 ffff8800cabfffd8 0000000000014940
Nov 18 15:27:08 portablebastien kernel: [20040.673571]  0000000000014940 ffff88011cfcefd8 ffff88011cfcefe0 ffff88011cfced00
Nov 18 15:27:08 portablebastien kernel: [20040.673580] Call Trace:
Nov 18 15:27:08 portablebastien kernel: [20040.673598]  [<ffffffffa01aab69>] ? queue_log_writer+0x7e/0xac [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.673606]  [<ffffffff8103f7c9>] ? default_wake_function+0x0/0xf
Nov 18 15:27:08 portablebastien kernel: [20040.673620]  [<ffffffffa01ae70a>] ? do_journal_begin_r+0x1d3/0x2c0 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.673633]  [<ffffffffa01b1c65>] ? xattr_lookup+0x17/0xef [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.673647]  [<ffffffffa01ae8b4>] ? journal_begin+0xbd/0xfa [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.673661]  [<ffffffffa01a0516>] ? reiserfs_dirty_inode+0x56/0x95 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.673668]  [<ffffffff81048a76>] ? current_fs_time+0x1e/0x24
Nov 18 15:27:08 portablebastien kernel: [20040.673676]  [<ffffffff81107d03>] ? __mark_inode_dirty+0x27/0x1ac
Nov 18 15:27:08 portablebastien kernel: [20040.673683]  [<ffffffff810fdcf4>] ? file_update_time+0xf6/0x121
Nov 18 15:27:08 portablebastien kernel: [20040.673690]  [<ffffffff810b0703>] ? __generic_file_aio_write+0x164/0x280
Nov 18 15:27:08 portablebastien kernel: [20040.673698]  [<ffffffff8124e41e>] ? sock_aio_read+0xb6/0xc5
Nov 18 15:27:08 portablebastien kernel: [20040.673704]  [<ffffffff810b0874>] ? generic_file_aio_write+0x55/0x9f
Nov 18 15:27:08 portablebastien kernel: [20040.673711]  [<ffffffff810ec718>] ? do_sync_write+0xb1/0xea
Nov 18 15:27:08 portablebastien kernel: [20040.673719]  [<ffffffff811533f3>] ? security_file_permission+0x18/0x2e
Nov 18 15:27:08 portablebastien kernel: [20040.673726]  [<ffffffff810ecc4b>] ? vfs_write+0xa4/0x100
Nov 18 15:27:08 portablebastien kernel: [20040.673732]  [<ffffffff810ecd5a>] ? sys_write+0x45/0x6b
Nov 18 15:27:08 portablebastien kernel: [20040.673738]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
Nov 18 15:27:08 portablebastien kernel: [20040.678435] akregator     D ffffc900054360e0     0  2996      1 0x00000000
Nov 18 15:27:08 portablebastien kernel: [20040.678441]  ffff880037bf2210 0000000000000082 ffff8800cab77aa8 ffff88011f6d6630
Nov 18 15:27:08 portablebastien kernel: [20040.678448]  0000000000014940 0000000000014940 ffff8800cab77fd8 0000000000014940
Nov 18 15:27:08 portablebastien kernel: [20040.678454]  0000000000014940 ffff880037bf24e8 ffff880037bf24f0 ffff880037bf2210
Nov 18 15:27:08 portablebastien kernel: [20040.678460] Call Trace:
Nov 18 15:27:08 portablebastien kernel: [20040.678467]  [<ffffffff8130e223>] ? schedule_hrtimeout_range_clock+0xc4/0x125
Nov 18 15:27:08 portablebastien kernel: [20040.678482]  [<ffffffffa01aab69>] ? queue_log_writer+0x7e/0xac [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.678488]  [<ffffffff8103f7c9>] ? default_wake_function+0x0/0xf
Nov 18 15:27:08 portablebastien kernel: [20040.678501]  [<ffffffffa01ae70a>] ? do_journal_begin_r+0x1d3/0x2c0 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.678514]  [<ffffffffa01b1c65>] ? xattr_lookup+0x17/0xef [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.678526]  [<ffffffffa01ae8b4>] ? journal_begin+0xbd/0xfa [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.678539]  [<ffffffffa01a0516>] ? reiserfs_dirty_inode+0x56/0x95 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.678544]  [<ffffffff81048a76>] ? current_fs_time+0x1e/0x24
Nov 18 15:27:08 portablebastien kernel: [20040.678550]  [<ffffffff81107d03>] ? __mark_inode_dirty+0x27/0x1ac
Nov 18 15:27:08 portablebastien kernel: [20040.678555]  [<ffffffff810fdcf4>] ? file_update_time+0xf6/0x121
Nov 18 15:27:08 portablebastien kernel: [20040.678560]  [<ffffffff810b0703>] ? __generic_file_aio_write+0x164/0x280
Nov 18 15:27:08 portablebastien kernel: [20040.678566]  [<ffffffff810b16f0>] ? generic_file_aio_read+0x51e/0x576
Nov 18 15:27:08 portablebastien kernel: [20040.678571]  [<ffffffff810b0874>] ? generic_file_aio_write+0x55/0x9f
Nov 18 15:27:08 portablebastien kernel: [20040.678577]  [<ffffffff810ec718>] ? do_sync_write+0xb1/0xea
Nov 18 15:27:08 portablebastien kernel: [20040.678583]  [<ffffffff811533f3>] ? security_file_permission+0x18/0x2e
Nov 18 15:27:08 portablebastien kernel: [20040.678588]  [<ffffffff810ecc4b>] ? vfs_write+0xa4/0x100
Nov 18 15:27:08 portablebastien kernel: [20040.678593]  [<ffffffff810ecd5a>] ? sys_write+0x45/0x6b
Nov 18 15:27:08 portablebastien kernel: [20040.678598]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
Nov 18 15:27:08 portablebastien kernel: [20040.683411] pidgin        D 00000001004abe7c     0  7472   2942 0x00000000
Nov 18 15:27:08 portablebastien kernel: [20040.683417]  ffff8800b83cc420 0000000000000082 0000000000000000 ffffffff81632020
Nov 18 15:27:08 portablebastien kernel: [20040.683424]  0000000000014940 0000000000014940 ffff88003d1d7fd8 0000000000014940
Nov 18 15:27:08 portablebastien kernel: [20040.683430]  0000000000014940 ffff8800b83cc6f8 ffff8800b83cc700 ffff8800b83cc420
Nov 18 15:27:08 portablebastien kernel: [20040.683436] Call Trace:
Nov 18 15:27:08 portablebastien kernel: [20040.683451]  [<ffffffffa01aab69>] ? queue_log_writer+0x7e/0xac [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.683457]  [<ffffffff8103f7c9>] ? default_wake_function+0x0/0xf
Nov 18 15:27:08 portablebastien kernel: [20040.683470]  [<ffffffffa01ae70a>] ? do_journal_begin_r+0x1d3/0x2c0 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.683476]  [<ffffffff8112c164>] ? __dquot_initialize+0x20/0x16d
Nov 18 15:27:08 portablebastien kernel: [20040.683489]  [<ffffffffa01ae8b4>] ? journal_begin+0xbd/0xfa [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.683500]  [<ffffffffa0196bff>] ? reiserfs_create+0xe6/0x205 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.683506]  [<ffffffff810f4712>] ? generic_permission+0xe/0x8a
Nov 18 15:27:08 portablebastien kernel: [20040.683512]  [<ffffffff810f54b7>] ? vfs_create+0x66/0x88
Nov 18 15:27:08 portablebastien kernel: [20040.683517]  [<ffffffff810f5e6a>] ? do_last+0x268/0x536
Nov 18 15:27:08 portablebastien kernel: [20040.683523]  [<ffffffff810f7aa9>] ? do_filp_open+0x1e4/0x53b
Nov 18 15:27:08 portablebastien kernel: [20040.683529]  [<ffffffff810eb2e0>] ? do_sys_open+0x56/0xe4
Nov 18 15:27:08 portablebastien kernel: [20040.683534]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
Nov 18 15:27:08 portablebastien kernel: [20040.688478] okular        D 00000001004a9d20     0 19668  19569 0x00000000
Nov 18 15:27:08 portablebastien kernel: [20040.688485]  ffff8800b813caf0 0000000000000082 0000000000000000 ffff88011f65caf0
Nov 18 15:27:08 portablebastien kernel: [20040.688491]  0000000000014940 0000000000014940 ffff8800b82f9fd8 0000000000014940
Nov 18 15:27:08 portablebastien kernel: [20040.688497]  0000000000014940 ffff8800b813cdc8 ffff8800b813cdd0 ffff8800b813caf0
Nov 18 15:27:08 portablebastien kernel: [20040.688506] Call Trace:
Nov 18 15:27:08 portablebastien kernel: [20040.688522]  [<ffffffffa01aab69>] ? queue_log_writer+0x7e/0xac [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.688530]  [<ffffffff8103f7c9>] ? default_wake_function+0x0/0xf
Nov 18 15:27:08 portablebastien kernel: [20040.688543]  [<ffffffffa01ae70a>] ? do_journal_begin_r+0x1d3/0x2c0 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.688558]  [<ffffffffa01ae8b4>] ? journal_begin+0xbd/0xfa [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.688571]  [<ffffffffa01997a4>] ? reiserfs_truncate_file+0x175/0x279 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.688579]  [<ffffffff810c728f>] ? unmap_mapping_range+0x59/0xf5
Nov 18 15:27:08 portablebastien kernel: [20040.688592]  [<ffffffffa019b6ae>] ? reiserfs_vfs_truncate_file+0x22/0x2d [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.688599]  [<ffffffff810b9269>] ? vmtruncate+0x36/0x41
Nov 18 15:27:08 portablebastien kernel: [20040.688612]  [<ffffffffa0197c20>] ? reiserfs_setattr+0x26f/0x2f4 [reiserfs]
Nov 18 15:27:08 portablebastien kernel: [20040.688619]  [<ffffffff81048a76>] ? current_fs_time+0x1e/0x24
Nov 18 15:27:08 portablebastien kernel: [20040.688626]  [<ffffffff810ff2e1>] ? notify_change+0x195/0x27e
Nov 18 15:27:08 portablebastien kernel: [20040.688633]  [<ffffffff810ec0ac>] ? do_truncate+0x68/0x86
Nov 18 15:27:08 portablebastien kernel: [20040.688639]  [<ffffffff810eb531>] ? __dentry_open+0x186/0x291
Nov 18 15:27:08 portablebastien kernel: [20040.688645]  [<ffffffff810f45e8>] ? get_write_access+0x10/0x3a
Nov 18 15:27:08 portablebastien kernel: [20040.688652]  [<ffffffff810f605f>] ? do_last+0x45d/0x536
Nov 18 15:27:08 portablebastien kernel: [20040.688658]  [<ffffffff810f7aa9>] ? do_filp_open+0x1e4/0x53b
Nov 18 15:27:08 portablebastien kernel: [20040.688665]  [<ffffffff810ec802>] ? do_sync_read+0xb1/0xea
Nov 18 15:27:08 portablebastien kernel: [20040.688672]  [<ffffffff810eb2e0>] ? do_sys_open+0x56/0xe4
Nov 18 15:27:08 portablebastien kernel: [20040.688678]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
Nov 18 15:29:08 portablebastien kernel: [20160.691920] kdeinit4      D 00000001004b2d6e     0  2866      1 0x00000000
Nov 18 15:29:08 portablebastien kernel: [20160.691928]  ffff88011cfc8da0 0000000000000086 0000004000000000 ffffffff81632020
Nov 18 15:29:08 portablebastien kernel: [20160.691935]  0000000000014940 0000000000014940 ffff8800379f3fd8 0000000000014940
Nov 18 15:29:08 portablebastien kernel: [20160.691941]  0000000000014940 ffff88011cfc9078 ffff88011cfc9080 ffff88011cfc8da0
Nov 18 15:29:08 portablebastien kernel: [20160.691947] Call Trace:
Nov 18 15:29:08 portablebastien kernel: [20160.691958]  [<ffffffff8130e00e>] ? __mutex_lock_common+0x127/0x193
Nov 18 15:29:08 portablebastien kernel: [20160.691965]  [<ffffffff81030624>] ? flush_tlb_page+0x56/0x73
Nov 18 15:29:08 portablebastien kernel: [20160.691970]  [<ffffffff8130e146>] ? mutex_lock+0x1a/0x33
Nov 18 15:29:08 portablebastien kernel: [20160.691976]  [<ffffffff810c9358>] ? do_wp_page+0x309/0x70d
Nov 18 15:29:08 portablebastien kernel: [20160.691982]  [<ffffffff810b085f>] ? generic_file_aio_write+0x40/0x9f
Nov 18 15:29:08 portablebastien kernel: [20160.691989]  [<ffffffff810ec718>] ? do_sync_write+0xb1/0xea
Nov 18 15:29:08 portablebastien kernel: [20160.691996]  [<ffffffff811533f3>] ? security_file_permission+0x18/0x2e
Nov 18 15:29:08 portablebastien kernel: [20160.692027]  [<ffffffff810ecc4b>] ? vfs_write+0xa4/0x100
Nov 18 15:29:08 portablebastien kernel: [20160.692032]  [<ffffffff810ecd5a>] ? sys_write+0x45/0x6b
Nov 18 15:29:08 portablebastien kernel: [20160.692038]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
Nov 18 15:29:08 portablebastien kernel: [20160.695820] kded4         D 00000001004a8412     0  2869      1 0x00000000
Nov 18 15:29:08 portablebastien kernel: [20160.695826]  ffff8801114adf60 0000000000000086 ffff880100000000 ffffffff81632020
Nov 18 15:29:08 portablebastien kernel: [20160.695832]  0000000000014940 0000000000014940 ffff880037ad7fd8 0000000000014940
Nov 18 15:29:08 portablebastien kernel: [20160.695838]  0000000000014940 ffff8801114ae238 ffff8801114ae240 ffff8801114adf60
Nov 18 15:29:08 portablebastien kernel: [20160.695844] Call Trace:
Nov 18 15:29:08 portablebastien kernel: [20160.695876]  [<ffffffffa01aab69>] ? queue_log_writer+0x7e/0xac [reiserfs]
Nov 18 15:29:08 portablebastien kernel: [20160.695884]  [<ffffffff8103f7c9>] ? default_wake_function+0x0/0xf
Nov 18 15:29:08 portablebastien kernel: [20160.695897]  [<ffffffffa01ae70a>] ? do_journal_begin_r+0x1d3/0x2c0 [reiserfs]
Nov 18 15:29:08 portablebastien kernel: [20160.695904]  [<ffffffff8112c164>] ? __dquot_initialize+0x20/0x16d
Nov 18 15:29:08 portablebastien kernel: [20160.695917]  [<ffffffffa01ae8b4>] ? journal_begin+0xbd/0xfa [reiserfs]
Nov 18 15:29:08 portablebastien kernel: [20160.695928]  [<ffffffffa0196bff>] ? reiserfs_create+0xe6/0x205 [reiserfs]
Nov 18 15:29:08 portablebastien kernel: [20160.695935]  [<ffffffff810f4712>] ? generic_permission+0xe/0x8a
Nov 18 15:29:08 portablebastien kernel: [20160.695941]  [<ffffffff810f54b7>] ? vfs_create+0x66/0x88
Nov 18 15:29:08 portablebastien kernel: [20160.695946]  [<ffffffff810f49c5>] ? d_alloc_and_lookup+0x4a/0x67
Nov 18 15:29:08 portablebastien kernel: [20160.695951]  [<ffffffff810f5e6a>] ? do_last+0x268/0x536
Nov 18 15:29:08 portablebastien kernel: [20160.695957]  [<ffffffff810f7aa9>] ? do_filp_open+0x1e4/0x53b
Nov 18 15:29:08 portablebastien kernel: [20160.695963]  [<ffffffff810eb2e0>] ? do_sys_open+0x56/0xe4
Nov 18 15:29:08 portablebastien kernel: [20160.695968]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
Nov 18 15:29:08 portablebastien kernel: [20160.699768] ksmserver     D 00000001004b2f71     0  2917   2866 0x00000004
Nov 18 15:29:08 portablebastien kernel: [20160.699774]  ffff8800d70428e0 0000000000000082 0000000000000000 ffffffff81632020
Nov 18 15:29:08 portablebastien kernel: [20160.699781]  0000000000014940 0000000000014940 ffff8800d706bfd8 0000000000014940
Nov 18 15:29:08 portablebastien kernel: [20160.699787]  0000000000014940 ffff8800d7042bb8 ffff8800d7042bc0 ffff8800d70428e0
Nov 18 15:29:08 portablebastien kernel: [20160.699793] Call Trace:
Nov 18 15:29:08 portablebastien kernel: [20160.699799]  [<ffffffff8130e00e>] ? __mutex_lock_common+0x127/0x193
Nov 18 15:29:08 portablebastien kernel: [20160.699804]  [<ffffffff8130e146>] ? mutex_lock+0x1a/0x33
Nov 18 15:29:08 portablebastien kernel: [20160.699809]  [<ffffffff8130dd12>] ? __wait_on_bit_lock+0x76/0x85
Nov 18 15:29:08 portablebastien kernel: [20160.699815]  [<ffffffff810b085f>] ? generic_file_aio_write+0x40/0x9f
Nov 18 15:29:08 portablebastien kernel: [20160.699820]  [<ffffffff810ec718>] ? do_sync_write+0xb1/0xea
Nov 18 15:29:08 portablebastien kernel: [20160.699826]  [<ffffffff810d011f>] ? do_page_add_anon_rmap+0x82/0x8f
Nov 18 15:29:08 portablebastien kernel: [20160.699832]  [<ffffffff811533f3>] ? security_file_permission+0x18/0x2e
Nov 18 15:29:08 portablebastien kernel: [20160.699837]  [<ffffffff810ecc4b>] ? vfs_write+0xa4/0x100
Nov 18 15:29:08 portablebastien kernel: [20160.699843]  [<ffffffff810ecd5a>] ? sys_write+0x45/0x6b
Nov 18 15:29:08 portablebastien kernel: [20160.699848]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
Nov 18 15:29:13 portablebastien shutdown[20760]: shutting down for system reboot

> 
> There are three places that can do this wakeup:
> 
> - reiserfs_allow_writes()
> - wake_queued_writers()
> - do_journal_end()
> 
> So it would be really great if you could select the following
> config options:
> 
> CONFIG_REISERFS_CHECK
> CONFIG_PROVE_LOCKING
> CONFIG_DEBUG_SPINLOCK_SLEEP
> CONFIG_DEBUG_MUTEXES
> CONFIG_DEBUG_SPINLOCK
> CONFIG_FRAME_POINTER
> CONFIG_DETECT_HUNG_TASK
> 
> and try to reproduce the problem. You need to wait 3 minutes after
> the lockup. And then, dmesg must contain everything I need to
> fix this.

Unfortunatly it was the only trace I could get, will try to reproduce it however.

Bastien

> Thanks a lot in advance!