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Date: Thu, 18 Nov 2010 17:30:51 +0100
From: Frederic Weisbecker <fweisbec@gmail.com>
To: Bastien ROUCARIES <roucaries.bastien@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Reiserfs deadlock in  2.6.36
Message-ID: <20101118163048.GE5374@nowhere>
References: <201011181650.00152.roucaries.bastien@gmail.com>
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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 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.

Thanks a lot in advance!

 
> System trace is here:
> Nov 18 15:25:08 portablebastien kernel: [19920.664304] kalarm        D 00000001004a5de3     0  2995      1 0x00000000
> Nov 18 15:25:08 portablebastien kernel: [19920.664312]  ffff88011cfced00 0000000000000082 ffff880000000000 ffffffff81632020
> Nov 18 15:25:08 portablebastien kernel: [19920.664319]  0000000000014940 0000000000014940 ffff8800cabfffd8 0000000000014940
> Nov 18 15:25:08 portablebastien kernel: [19920.664325]  0000000000014940 ffff88011cfcefd8 ffff88011cfcefe0 ffff88011cfced00
> Nov 18 15:25:08 portablebastien kernel: [19920.664331] Call Trace:
> Nov 18 15:25:08 portablebastien kernel: [19920.664364]  [<ffffffffa01aab69>] ? queue_log_writer+0x7e/0xac [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664373]  [<ffffffff8103f7c9>] ? default_wake_function+0x0/0xf
> Nov 18 15:25:08 portablebastien kernel: [19920.664386]  [<ffffffffa01ae70a>] ? do_journal_begin_r+0x1d3/0x2c0 [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664399]  [<ffffffffa01b1c65>] ? xattr_lookup+0x17/0xef [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664412]  [<ffffffffa01ae8b4>] ? journal_begin+0xbd/0xfa [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664425]  [<ffffffffa01a0516>] ? reiserfs_dirty_inode+0x56/0x95 [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664431]  [<ffffffff81048a76>] ? current_fs_time+0x1e/0x24
> Nov 18 15:25:08 portablebastien kernel: [19920.664438]  [<ffffffff81107d03>] ? __mark_inode_dirty+0x27/0x1ac
> Nov 18 15:25:08 portablebastien kernel: [19920.664444]  [<ffffffff810fdcf4>] ? file_update_time+0xf6/0x121
> Nov 18 15:25:08 portablebastien kernel: [19920.664450]  [<ffffffff810b0703>] ? __generic_file_aio_write+0x164/0x280
> Nov 18 15:25:08 portablebastien kernel: [19920.664457]  [<ffffffff8124e41e>] ? sock_aio_read+0xb6/0xc5
> Nov 18 15:25:08 portablebastien kernel: [19920.664462]  [<ffffffff810b0874>] ? generic_file_aio_write+0x55/0x9f
> Nov 18 15:25:08 portablebastien kernel: [19920.664469]  [<ffffffff810ec718>] ? do_sync_write+0xb1/0xea
> Nov 18 15:25:08 portablebastien kernel: [19920.664476]  [<ffffffff811533f3>] ? security_file_permission+0x18/0x2e
> Nov 18 15:25:08 portablebastien kernel: [19920.664482]  [<ffffffff810ecc4b>] ? vfs_write+0xa4/0x100
> Nov 18 15:25:08 portablebastien kernel: [19920.664488]  [<ffffffff810ecd5a>] ? sys_write+0x45/0x6b
> Nov 18 15:25:08 portablebastien kernel: [19920.664493]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
> Nov 18 15:25:08 portablebastien kernel: [19920.664505] akregator     D ffffc900054360e0     0  2996      1 0x00000000
> Nov 18 15:25:08 portablebastien kernel: [19920.664511]  ffff880037bf2210 0000000000000082 ffff8800cab77aa8 ffff88011f6d6630
> Nov 18 15:25:08 portablebastien kernel: [19920.664517]  0000000000014940 0000000000014940 ffff8800cab77fd8 0000000000014940
> Nov 18 15:25:08 portablebastien kernel: [19920.664523]  0000000000014940 ffff880037bf24e8 ffff880037bf24f0 ffff880037bf2210
> Nov 18 15:25:08 portablebastien kernel: [19920.664529] Call Trace:
> Nov 18 15:25:08 portablebastien kernel: [19920.664535]  [<ffffffff8130e223>] ? schedule_hrtimeout_range_clock+0xc4/0x125
> Nov 18 15:25:08 portablebastien kernel: [19920.664549]  [<ffffffffa01aab69>] ? queue_log_writer+0x7e/0xac [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664555]  [<ffffffff8103f7c9>] ? default_wake_function+0x0/0xf
> Nov 18 15:25:08 portablebastien kernel: [19920.664568]  [<ffffffffa01ae70a>] ? do_journal_begin_r+0x1d3/0x2c0 [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664580]  [<ffffffffa01b1c65>] ? xattr_lookup+0x17/0xef [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664593]  [<ffffffffa01ae8b4>] ? journal_begin+0xbd/0xfa [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664606]  [<ffffffffa01a0516>] ? reiserfs_dirty_inode+0x56/0x95 [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664611]  [<ffffffff81048a76>] ? current_fs_time+0x1e/0x24
> Nov 18 15:25:08 portablebastien kernel: [19920.664617]  [<ffffffff81107d03>] ? __mark_inode_dirty+0x27/0x1ac
> Nov 18 15:25:08 portablebastien kernel: [19920.664622]  [<ffffffff810fdcf4>] ? file_update_time+0xf6/0x121
> Nov 18 15:25:08 portablebastien kernel: [19920.664628]  [<ffffffff810b0703>] ? __generic_file_aio_write+0x164/0x280
> Nov 18 15:25:08 portablebastien kernel: [19920.664633]  [<ffffffff810b16f0>] ? generic_file_aio_read+0x51e/0x576
> Nov 18 15:25:08 portablebastien kernel: [19920.664638]  [<ffffffff810b0874>] ? generic_file_aio_write+0x55/0x9f
> Nov 18 15:25:08 portablebastien kernel: [19920.664644]  [<ffffffff810ec718>] ? do_sync_write+0xb1/0xea
> Nov 18 15:25:08 portablebastien kernel: [19920.664650]  [<ffffffff811533f3>] ? security_file_permission+0x18/0x2e
> Nov 18 15:25:08 portablebastien kernel: [19920.664656]  [<ffffffff810ecc4b>] ? vfs_write+0xa4/0x100
> Nov 18 15:25:08 portablebastien kernel: [19920.664661]  [<ffffffff810ecd5a>] ? sys_write+0x45/0x6b
> Nov 18 15:25:08 portablebastien kernel: [19920.664493]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
> Nov 18 15:25:08 portablebastien kernel: [19920.664505] akregator     D ffffc900054360e0     0  2996      1 0x00000000
> Nov 18 15:25:08 portablebastien kernel: [19920.664511]  ffff880037bf2210 0000000000000082 ffff8800cab77aa8 ffff88011f6d6630
> Nov 18 15:25:08 portablebastien kernel: [19920.664517]  0000000000014940 0000000000014940 ffff8800cab77fd8 0000000000014940
> Nov 18 15:25:08 portablebastien kernel: [19920.664523]  0000000000014940 ffff880037bf24e8 ffff880037bf24f0 ffff880037bf2210
> Nov 18 15:25:08 portablebastien kernel: [19920.664529] Call Trace:
> Nov 18 15:25:08 portablebastien kernel: [19920.664535]  [<ffffffff8130e223>] ? schedule_hrtimeout_range_clock+0xc4/0x125
> Nov 18 15:25:08 portablebastien kernel: [19920.664549]  [<ffffffffa01aab69>] ? queue_log_writer+0x7e/0xac [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664555]  [<ffffffff8103f7c9>] ? default_wake_function+0x0/0xf
> Nov 18 15:25:08 portablebastien kernel: [19920.664568]  [<ffffffffa01ae70a>] ? do_journal_begin_r+0x1d3/0x2c0 [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664580]  [<ffffffffa01b1c65>] ? xattr_lookup+0x17/0xef [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664593]  [<ffffffffa01ae8b4>] ? journal_begin+0xbd/0xfa [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664606]  [<ffffffffa01a0516>] ? reiserfs_dirty_inode+0x56/0x95 [reiserfs]
> Nov 18 15:25:08 portablebastien kernel: [19920.664611]  [<ffffffff81048a76>] ? current_fs_time+0x1e/0x24
> Nov 18 15:25:08 portablebastien kernel: [19920.664617]  [<ffffffff81107d03>] ? __mark_inode_dirty+0x27/0x1ac
> Nov 18 15:25:08 portablebastien kernel: [19920.664622]  [<ffffffff810fdcf4>] ? file_update_time+0xf6/0x121
> Nov 18 15:25:08 portablebastien kernel: [19920.664628]  [<ffffffff810b0703>] ? __generic_file_aio_write+0x164/0x280
> Nov 18 15:25:08 portablebastien kernel: [19920.664633]  [<ffffffff810b16f0>] ? generic_file_aio_read+0x51e/0x576
> Nov 18 15:25:08 portablebastien kernel: [19920.664638]  [<ffffffff810b0874>] ? generic_file_aio_write+0x55/0x9f
> Nov 18 15:25:08 portablebastien kernel: [19920.664644]  [<ffffffff810ec718>] ? do_sync_write+0xb1/0xea
> Nov 18 15:25:08 portablebastien kernel: [19920.664650]  [<ffffffff811533f3>] ? security_file_permission+0x18/0x2e
> Nov 18 15:25:08 portablebastien kernel: [19920.664656]  [<ffffffff810ecc4b>] ? vfs_write+0xa4/0x100
> Nov 18 15:25:08 portablebastien kernel: [19920.664661]  [<ffffffff810ecd5a>] ? sys_write+0x45/0x6b
> Nov 18 15:25:08 portablebastien kernel: [19920.664666]  [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b
> ov 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
> 

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