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[Bug 916] xfs_log_force blocked

To: xfs-masters@xxxxxxxxxxx
Subject: [Bug 916] xfs_log_force blocked
From: bugzilla-daemon@xxxxxxxxxxx
Date: Mon, 19 Mar 2012 06:08:45 -0500
Auto-submitted: auto-generated
In-reply-to: <bug-916-113@xxxxxxxxxxxxxxxx/bugzilla/>
References: <bug-916-113@xxxxxxxxxxxxxxxx/bugzilla/>
http://oss.sgi.com/bugzilla/show_bug.cgi?id=916


amethyst623@xxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |NEW




--- Comment #5 from amethyst623@xxxxxxx  2012-03-19 06:08:43 CST ---
(In reply to comment #4)
> (In reply to comment #1)
> > You device is throwing IO errors, so the filesystem shut down. Some times it
> > takes a little while for the lower layers to detect an IO error (e.g. for 
> > IOs
> > that are in flight at teh time of teh unplug), so the syscall that is in
> > progress waiting for the IO to complete will block waiting for it. In any 
> > case,
> > it's not a filesystem problem.
> with more tests I found mrupdate_nested(&ip->i_lock,
> XFS_ILOCK_DEP(lock_flags));
> sometimes takes a long time (10 seconds or more). Can anyone tell me how to
> solve this problem?
> thanks.
> ------------------------------------------------------------
> xfs_write calls xfs_ilock(xip, XFS_ILOCK_EXCL|iolock);
> xfs_ilock(
>         ...
>     if (lock_flags & XFS_IOLOCK_EXCL)
>         mrupdate_nested(&ip->i_iolock, XFS_IOLOCK_DEP(lock_flags));
>     else if (lock_flags & XFS_IOLOCK_SHARED)
>         mraccess_nested(&ip->i_iolock, XFS_IOLOCK_DEP(lock_flags));
>     if (lock_flags & XFS_ILOCK_EXCL)
>         mrupdate_nested(&ip->i_lock, XFS_ILOCK_DEP(lock_flags));
>     else if (lock_flags & XFS_ILOCK_SHARED)
>         mraccess_nested(&ip->i_lock, XFS_ILOCK_DEP(lock_flags));
>         ...
> }

[  340.431000] INFO: task khubd:196 blocked for more than 1 seconds.
[  340.432000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  340.433000] Pid : 196, Comm:                khubd
[  340.434000] PC  : 82202da0 SP  : 90061fa4 SR  : 40008000 
[  340.435000] Tainted: P          
[  340.436000] R0  : 00000000 R1  : 00000000 R2  : 00000000 R3  : 00000000
[  340.437000] R4  : 9001ff08 R5  : 8222da20 R6  : 00000000 R7  : 00000000
[  340.438000] R8  : 00000000 R9  : 00000000 R10 : 00000000 R11 : 00000000
[  340.439000] R12 : 00000000 R13 : 00000000 R14 : 00000000
[  340.440000] MACH: 00000000 MACL: 00000000 GBR : 00000000 PR  : 00000000
[  340.441000] khubd         D 8252ebbc     0   196      2 0x00000000
[  340.444000] Stack: (0x90061b74 to 0x90062000)
[  340.445000] 1b60:                                              90061b98
82639908 9001c45c 
[  340.453000] 1b80: 9001c420 8263954c 9028ac60 9001c3e0 8252eae2 00000000
9001c56c 00005362 
[  340.461000] 1ba0: 00000000 8252f036 90061bc4 9001c5ec 9001c5e8 fffe9498
ffffffff 8252e920 
[  340.468000] 1bc0: 10000000 9001c568 fffe60ae ffffffff 822961f6 90061bf0
00000002 828be978 
[  340.475000] 1be0: 8222e140 00000000 fffffffb 90061c2c 8252fa74 90061bf8
00000000 822961ec 
[  340.483000] 1c00: 90061c34 8252fb26 90061c24 000000bc 8252e848 9016009c
00000000 90061c98 
[  340.491000] 1c20: 00000000 00000002 822961ec 90061c98 00000000 00000000
9001c3e0 8222dee0 
[  340.498000] 1c40: 828be978 828be978 822962b6 90061c60 9016009c 000001e8
90061c70 8fb15800 
[  340.505000] 1c60: 00000000 00000000 7fffffff 00000000 9016013c 9016013c
00000000 00000000 
[  340.513000] 1c80: 00000000 00000001 7fffffff 8fb15800 00000001 00000000
00000003 00000000 
[  340.521000] 1ca0: 00000000 00000000 00000000 8229a54a 90061ccc 000000bc
8d3f223c 8fb15800 
[  340.528000] 1cc0: 00000001 8fb1587c 8fb15800 8229a632 90061ce8 8d3f223c
8fb15800 8fc02660 
[  340.535000] 1ce0: 8229a520 8fb15800 822a50d4 90061cf8 000001e8 8252e848
823a453e 90061d10 
[  340.543000] 1d00: 823a4520 8b3ac27c 8fc02660 00000000 822c2940 90061d20
8fb15c00 8d3f2180 
[  340.551000] 1d20: 8fb15c00 8d3f2180 00000000 00000003 82400b7a 90061d50
8252f000 8fb15328 
[  340.558000] 1d40: 8b3ac208 8b3ac27c 8264dd48 8fb152ac 823ec360 90061d68
823e8fd4 8264dd0c 
[  340.565000] 1d60: 8fb152ec 8fb152ac 823ec3dc 90061d7c 822c61e0 8fb152ac
8fb152e0 823ebf68 
[  340.573000] 1d80: 90061d8c 8fb152ec 8fb152ac 823e9c4c 90061da0 823e9ae0
8d3f2394 8fb152ac 
[  340.581000] 1da0: 823fe0ca 90061dbc 000000f0 823e8fd4 823f7b00 8fb152ac
8fb15200 823fcca0 
[  340.588000] 1dc0: 90061dd4 ffffff0f 823fe040 000001bc 8b05cc00 8fc3cdcc
823f41ee 90061df8 
[  340.595000] 1de0: 8243ad60 8d3f2618 00000000 8b05cc28 823f38e0 8b05cc00
82451772 90061e10 
[  340.603000] 1e00: 82211a20 8b05cc00 8b05cee4 8b05ce28 824518f6 90061e28
000000fc 826500e8 
[  340.611000] 1e20: 8b05c400 8b05ce28 8243d2ce 90061e34 8d3f2580 823ec360
90061e48 82650118 
[  340.618000] 1e40: 8d3f25dc 8d3f259c 823ec3dc 90061e5c 822c61e0 8d3f259c
8d3f25d0 823ebf68 
[  340.625000] 1e60: 90061e6c 8d3f25dc 8d3f259c 823e9c4c 90061e80 823e9ae0
8b05c464 8d3f259c 
[  340.633000] 1e80: 8243c29a 90061e9c 823e9ba0 000000fc 8d3f2580 00000001
8b05c400 82435d7a 
[  340.641000] 1ea0: 90061ebc 8b05c648 8b05c464 8b05c498 0000001f 9018fdcc
8b05c400 82436b34 
[  340.648000] 1ec0: 90061edc 901a0f1c 901a0ee0 901a0f20 9018fc00 00000001
00000000 82639908 
[  340.655000] 1ee0: 822123c8 822105ea 823ad180 90061f4c 901a0f70 9012c0dc
9012c0dc 9018ce00 
[  340.662000] 1f00: 00000001 00000100 82232360 00000100 9018fc98 00000000
901a0ee8 901a0f18 
[  340.670000] 1f20: 9018fc00 00000009 00000000 9018fdcc fffffffd 00000000
9001c3e0 8222dea0 
[  340.677000] 1f40: 90061f40 90061f40 00000501 01000001 00000000 8222da80
90061f74 00000000 
[  340.684000] 1f60: 00000000 00000000 824367c0 00000000 9001ff08 00000000
00000000 90061f7c 
[  340.691000] 1f80: 90061f7c 82202da8 90061f9c 00000000 00000000 00000000
00000000 00000000 
[  340.699000] 1fa0: 00000000 00000000 00000000 00000000 00000000 9001ff08
8222da20 00000000 
[  340.706000] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 
[  340.713000] 1fe0: 90061fa4 82202da0 00000000 40008000 00000000 00000000
00000000 00000000 
[  340.720000] 
[  340.720000] Call trace:
[  340.721000]  [<8252eae2>] schedule+0x1c2/0x580
[  340.722000]  [<8252f036>] preempt_schedule+0x36/0x60
[  340.723000]  [<8252e920>] schedule+0x0/0x580
[  340.724000]  [<822961f6>] bdi_sched_wait+0xa/0x34
[  340.725000]  [<8222e140>] prepare_to_wait+0x0/0xc0
[  340.726000]  [<8252fa74>] __wait_on_bit+0x74/0xe0
[  340.727000]  [<822961ec>] bdi_sched_wait+0x0/0x34
[  340.728000]  [<8252fb26>] out_of_line_wait_on_bit+0x46/0x80
[  340.729000]  [<8252e848>] printk+0x0/0x30
[  340.730000]  [<822961ec>] bdi_sched_wait+0x0/0x34
[  340.731000]  [<8222dee0>] wake_bit_function+0x0/0x60
[  340.732000]  [<822962b6>] sync_inodes_sb+0x96/0x280
[  340.733000]  [<8229a54a>] __sync_filesystem+0x2a/0xc0
[  340.734000]  [<8229a632>] sync_filesystem+0x52/0x80
[  340.735000]  [<8229a520>] __sync_filesystem+0x0/0xc0
[  340.736000]  [<822a50d4>] fsync_bdev+0x74/0xc0
[  340.737000]  [<8252e848>] printk+0x0/0x30
[  340.738000]  [<823a453e>] invalidate_partition+0x1e/0x60
[  340.739000]  [<823a4520>] invalidate_partition+0x0/0x60
[  340.740000]  [<822c2940>] del_gendisk+0x40/0x140
[  340.741000]  [<82400b7a>] sd_remove+0x3a/0xa0
[  340.742000]  [<8252f000>] preempt_schedule+0x0/0x60
[  340.743000]  [<823ec360>] __device_release_driver+0x40/0xa0
[  340.744000]  [<823e8fd4>] put_device+0x0/0x1c
[  340.745000]  [<823ec3dc>] device_release_driver+0x1c/0x40
[  340.746000]  [<822c61e0>] sysfs_remove_link+0x0/0x40
[  340.747000]  [<823ebf68>] bus_remove_device+0x48/0xa0
[  340.748000]  [<823e9c4c>] device_del+0xac/0x160
[  340.749000]  [<823e9ae0>] device_remove_file+0x0/0x20
[  340.750000]  [<823fe0ca>] __scsi_remove_device+0x8a/0xc0
[  340.751000]  [<823e8fd4>] put_device+0x0/0x1c
[  340.752000]  [<823f7b00>] scsi_device_set_state+0x0/0xe0
[  340.753000]  [<823fcca0>] scsi_forget_host+0x80/0x100
[  340.754000]  [<823fe040>] __scsi_remove_device+0x0/0xc0
[  340.755000]  [<823f41ee>] scsi_remove_host+0x6e/0x1c0
[  340.757000]  [<8243ad60>] remove_intf_ep_devs+0x0/0x80
[  340.758000]  [<823f38e0>] scsi_host_set_state+0x0/0xa0
[  340.759000]  [<82451772>] quiesce_and_remove_host+0x92/0x140
[  340.760000]  [<82211a20>] __wake_up+0x0/0x80
[  340.761000]  [<824518f6>] usb_stor_disconnect+0x16/0x40
[  340.762000]  [<8243d2ce>] usb_unbind_interface+0x2e/0x100
[  340.763000]  [<823ec360>] __device_release_driver+0x40/0xa0
[  340.764000]  [<823ec3dc>] device_release_driver+0x1c/0x40
[  340.765000]  [<822c61e0>] sysfs_remove_link+0x0/0x40
[  340.766000]  [<823ebf68>] bus_remove_device+0x48/0xa0
[  340.767000]  [<823e9c4c>] device_del+0xac/0x160
[  340.768000]  [<823e9ae0>] device_remove_file+0x0/0x20
[  340.769000]  [<8243c29a>] usb_disable_device+0x9a/0x140
[  340.770000]  [<823e9ba0>] device_del+0x0/0x160
[  340.771000]  [<82435d7a>] usb_disconnect+0x9a/0x160
[  340.772000]  [<82436b34>] hub_thread+0x374/0xf00
[  340.773000]  [<822123c8>] put_prev_task_fair+0xa8/0xe0
[  340.774000]  [<822105ea>] pick_next_task_fair+0x6a/0xc0
[  340.775000]  [<823ad180>] find_next_zero_bit+0x0/0xa0
[  340.776000]  [<82232360>] up+0x0/0xa0
[  340.777000]  [<8222dea0>] autoremove_wake_function+0x0/0x40
[  340.778000]  [<8222da80>] kthread+0x60/0x80
[  340.780000]  [<824367c0>] hub_thread+0x0/0xf00
[  340.781000]  [<82202da8>] kernel_thread_helper+0x8/0x20
[  340.782000]  [<8222da20>] kthread+0x0/0x80
[  340.783000]  [<82202da0>] kernel_thread_helper+0x0/0x20
[  340.784000] 
[  340.785000] INFO: task flush-8:0:2017 blocked for more than 1 seconds.
[  340.786000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  340.787000] Pid : 2017, Comm:            flush-8:0
[  340.788000] PC  : 82202da0 SP  : 8f315fa4 SR  : 40008000 
[  340.789000] Tainted: P          
[  340.790000] R0  : 00000000 R1  : 00000000 R2  : 00000000 R3  : 00000000
[  340.791000] R4  : 90065edc R5  : 8222da20 R6  : 00000000 R7  : 00000000
[  340.792000] R8  : 00000000 R9  : 00000000 R10 : 00000000 R11 : 00000000
[  340.793000] R12 : 00000000 R13 : 00000000 R14 : 00000000
[  340.794000] MACH: 00000000 MACL: 00000000 GBR : 00000000 PR  : 00000000
[  340.795000] flush-8:0     D 8252ebbc     0  2017      2 0x00000000
[  340.798000] Stack: (0x8f315d24 to 0x8f316000)
[  340.799000] 5d20:          8f315d48 82639908 87baec5c 87baec20 8263954c
9028ac60 87baebe0 
[  340.806000] 5d40: 8252eae2 00000000 00376331 00008d87 00000000 87baed6c
00014684 87baedec 
[  340.813000] 5d60: 87baede8 ffff4ebe ffffffff 8268baa8 00000042 87baed68
ffff356b ffffffff 
[  340.820000] 5d80: 8252f700 8f315da0 8252f5e0 00000000 00000002 8f315de0
ffffffff 8ff800c4 
[  340.828000] 5da0: 7fffffff 00000034 3320205b 312e3933 30303733 00205d30
00000000 8ff80674 
[  340.835000] 5dc0: 8252f27e 8f315dd8 00000002 8f315de0 ffffffff 8ff800c4
8224c4f2 00000000 
[  340.842000] 5de0: 00000001 87baebe0 82211c5c 8ff800c8 8ff800c8 8252f40e
8f315e14 8ff801f4 
[  340.849000] 5e00: 8ff801d4 000001e8 00000000 8252e848 8ff80040 8238ed2c
8f315e1c ffffffff 
[  340.857000] 5e20: 82295f1c 8f315e38 00000000 8f315ea8 00000000 8ff80158
00000001 82296a70 
[  340.864000] 5e40: 8f315e5c 8ff80158 8f315ea8 9016011c 8fb15800 8f315e48
901600fc 82639908 
[  340.871000] 5e60: 00000000 87baec20 8ff801d4 000098b5 00000000 8f315e84
82296740 8ff80160 
[  340.878000] 5e80: 8fd813a0 00000000 82296cee 8f315ea8 822967c0 00000000
00000400 901600fc 
[  340.886000] 5ea0: 8f315f0c 8f315ea8 9016009c 8fb15800 00000001 00000000
000003ff 00000000 
[  340.893000] 5ec0: 00000000 00000000 ffffffff 7fffffff 00000000 8f315ee8
8263aa28 8263aa20 
[  340.900000] 5ee0: 822970a4 8f315f00 00000000 9016013c 00000000 901600fc
8f315f0c 90061c70 
[  340.907000] 5f00: 00000000 90160108 90160118 7fffffff 8fb15800 00000001
00000000 822971f4 
[  340.915000] 5f20: 8f315f3c 8263aa20 82645764 82296fa0 901600fc 8222da00
00001388 000098b2 
[  340.922000] 5f40: 8225ee1a 8f315f60 00000000 00000000 901600fc 8225eda0
901600fc 9016009c 
[  340.929000] 5f60: 8222da80 8f315f74 8225eda0 00000000 90065edc 00000000
00000000 8f315f7c 
[  340.936000] 5f80: 8f315f7c 82202da8 8f315f9c 00000000 00000000 00000000
00000000 00000000 
[  340.944000] 5fa0: 00000000 00000000 00000000 00000000 00000000 90065edc
8222da20 00000000 
[  340.952000] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 
[  340.959000] 5fe0: 8f315fa4 82202da0 00000000 40008000 00000000 00000000
00000000 00000000 
[  340.966000] 
[  340.966000] Call trace:
[  340.967000]  [<8252eae2>] schedule+0x1c2/0x580
[  340.968000]  [<8252f700>] schedule_timeout+0x120/0x1c0
[  340.969000]  [<8252f5e0>] schedule_timeout+0x0/0x1c0
[  340.970000]  [<8252f27e>] wait_for_common+0x9e/0x180
[  340.971000]  [<8224c4f2>] filemap_fdatawait+0x52/0xa0
[  340.972000]  [<82211c5c>] default_wake_function+0x0/0x18
[  340.973000]  [<8252f40e>] wait_for_completion+0xe/0x20
[  340.974000]  [<8252e848>] printk+0x0/0x30
[  340.975000]  [<8238ed2c>] xfs_fs_write_inode+0x18c/0x200
[  340.977000]  [<82295f1c>] writeback_single_inode+0x23c/0x2c0
[  340.978000]  [<82296a70>] writeback_inodes_wb+0x2b0/0x460
[  340.979000]  [<82296740>] unpin_sb_for_writeback+0x0/0x40
[  340.980000]  [<82296cee>] wb_writeback+0xce/0x1a0
[  340.981000]  [<822967c0>] writeback_inodes_wb+0x0/0x460
[  340.982000]  [<822970a4>] wb_do_writeback+0x104/0x220
[  340.983000]  [<822971f4>] bdi_writeback_task+0x34/0xe0
[  340.984000]  [<82296fa0>] wb_do_writeback+0x0/0x220
[  340.985000]  [<8222da00>] kthread_should_stop+0x0/0x20
[  340.986000]  [<8225ee1a>] bdi_start_fn+0x7a/0x120
[  340.987000]  [<8225eda0>] bdi_start_fn+0x0/0x120
[  340.988000]  [<8222da80>] kthread+0x60/0x80
[  340.989000]  [<8225eda0>] bdi_start_fn+0x0/0x120
[  340.990000]  [<82202da8>] kernel_thread_helper+0x8/0x20
[  340.991000]  [<8222da20>] kthread+0x0/0x80
[  340.992000]  [<82202da0>] kernel_thread_helper+0x0/0x20
[  340.994000] 
[  342.026000] INFO: task khubd:196 blocked for more than 1 seconds.
[  342.027000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  342.028000] Pid : 196, Comm:                khubd
[  342.029000] PC  : 82202da0 SP  : 90061fa4 SR  : 40008000 
[  342.030000] Tainted: P          
[  342.031000] R0  : 00000000 R1  : 00000000 R2  : 00000000 R3  : 00000000
[  342.032000] R4  : 9001ff08 R5  : 8222da20 R6  : 00000000 R7  : 00000000
[  342.033000] R8  : 00000000 R9  : 00000000 R10 : 00000000 R11 : 00000000
[  342.034000] R12 : 00000000 R13 : 00000000 R14 : 00000000
[  342.035000] MACH: 00000000 MACL: 00000000 GBR : 00000000 PR  : 00000000
[  342.036000] khubd         D 8252ebbc     0   196      2 0x00000000
[  342.039000] Stack: (0x90061b74 to 0x90062000)
[  342.040000] 1b60:                                              90061b98
82639908 9001c45c 
[  342.048000] 1b80: 9001c420 8263954c 9028ac60 9001c3e0 8252eae2 00000000
9001c56c 00005362 
[  342.055000] 1ba0: 00000000 8252f036 90061bc4 9001c5ec 9001c5e8 fffe9498
ffffffff 8252e920 
[  342.062000] 1bc0: 10000000 9001c568 fffe60ae ffffffff 822961f6 90061bf0
00000002 828be978 
[  342.070000] 1be0: 8222e140 00000000 fffffffb 90061c2c 8252fa74 90061bf8
00000000 822961ec 
[  342.078000] 1c00: 90061c34 8252fb26 90061c24 000000bc 8252e848 9016009c
00000000 90061c98 
[  342.085000] 1c20: 00000000 00000002 822961ec 90061c98 00000000 00000000
9001c3e0 8222dee0 
[  342.092000] 1c40: 828be978 828be978 822962b6 90061c60 9016009c 000001e8
90061c70 8fb15800 
[  342.100000] 1c60: 00000000 00000000 7fffffff 00000000 9016013c 9016013c
00000000 00000000 
[  342.108000] 1c80: 00000000 00000001 7fffffff 8fb15800 00000001 00000000
00000003 00000000 
[  342.115000] 1ca0: 00000000 00000000 00000000 8229a54a 90061ccc 000000bc
8d3f223c 8fb15800 
[  342.122000] 1cc0: 00000001 8fb1587c 8fb15800 8229a632 90061ce8 8d3f223c
8fb15800 8fc02660 
[  342.130000] 1ce0: 8229a520 8fb15800 822a50d4 90061cf8 000001e8 8252e848
823a453e 90061d10 
[  342.138000] 1d00: 823a4520 8b3ac27c 8fc02660 00000000 822c2940 90061d20
8fb15c00 8d3f2180 
[  342.145000] 1d20: 8fb15c00 8d3f2180 00000000 00000003 82400b7a 90061d50
8252f000 8fb15328 
[  342.152000] 1d40: 8b3ac208 8b3ac27c 8264dd48 8fb152ac 823ec360 90061d68
823e8fd4 8264dd0c 
[  342.160000] 1d60: 8fb152ec 8fb152ac 823ec3dc 90061d7c 822c61e0 8fb152ac
8fb152e0 823ebf68 
[  342.168000] 1d80: 90061d8c 8fb152ec 8fb152ac 823e9c4c 90061da0 823e9ae0
8d3f2394 8fb152ac 
[  342.175000] 1da0: 823fe0ca 90061dbc 000000f0 823e8fd4 823f7b00 8fb152ac
8fb15200 823fcca0 
[  342.182000] 1dc0: 90061dd4 ffffff0f 823fe040 000001bc 8b05cc00 8fc3cdcc
823f41ee 90061df8 
[  342.190000] 1de0: 8243ad60 8d3f2618 00000000 8b05cc28 823f38e0 8b05cc00
82451772 90061e10 
[  342.198000] 1e00: 82211a20 8b05cc00 8b05cee4 8b05ce28 824518f6 90061e28
000000fc 826500e8 
[  342.205000] 1e20: 8b05c400 8b05ce28 8243d2ce 90061e34 8d3f2580 823ec360
90061e48 82650118 
[  342.212000] 1e40: 8d3f25dc 8d3f259c 823ec3dc 90061e5c 822c61e0 8d3f259c
8d3f25d0 823ebf68 
[  342.220000] 1e60: 90061e6c 8d3f25dc 8d3f259c 823e9c4c 90061e80 823e9ae0
8b05c464 8d3f259c 
[  342.228000] 1e80: 8243c29a 90061e9c 823e9ba0 000000fc 8d3f2580 00000001
8b05c400 82435d7a 
[  342.235000] 1ea0: 90061ebc 8b05c648 8b05c464 8b05c498 0000001f 9018fdcc
8b05c400 82436b34 
[  342.242000] 1ec0: 90061edc 901a0f1c 901a0ee0 901a0f20 9018fc00 00000001
00000000 82639908 
[  342.250000] 1ee0: 822123c8 822105ea 823ad180 90061f4c 901a0f70 9012c0dc
9012c0dc 9018ce00 
[  342.258000] 1f00: 00000001 00000100 82232360 00000100 9018fc98 00000000
901a0ee8 901a0f18 
[  342.265000] 1f20: 9018fc00 00000009 00000000 9018fdcc fffffffd 00000000
9001c3e0 8222dea0 
[  342.272000] 1f40: 90061f40 90061f40 00000501 01000001 00000000 8222da80
90061f74 00000000 
[  342.280000] 1f60: 00000000 00000000 824367c0 00000000 9001ff08 00000000
00000000 90061f7c 
[  342.288000] 1f80: 90061f7c 82202da8 90061f9c 00000000 00000000 00000000
00000000 00000000 
[  342.295000] 1fa0: 00000000 00000000 00000000 00000000 00000000 9001ff08
8222da20 00000000 
[  342.302000] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000 
[  342.310000] 1fe0: 90061fa4 82202da0 00000000 40008000 00000000 00000000
00000000 00000000 
[  342.318000] 
[  342.318000] Call trace:
[  342.319000]  [<8252eae2>] schedule+0x1c2/0x580
[  342.320000]  [<8252f036>] preempt_schedule+0x36/0x60
[  342.321000]  [<8252e920>] schedule+0x0/0x580
[  342.322000]  [<822961f6>] bdi_sched_wait+0xa/0x34
[  342.323000]  [<8222e140>] prepare_to_wait+0x0/0xc0
[  342.324000]  [<8252fa74>] __wait_on_bit+0x74/0xe0
[  342.325000]  [<822961ec>] bdi_sched_wait+0x0/0x34
[  342.326000]  [<8252fb26>] out_of_line_wait_on_bit+0x46/0x80
[  342.327000]  [<8252e848>] printk+0x0/0x30
[  342.328000]  [<822961ec>] bdi_sched_wait+0x0/0x34
[  342.329000]  [<8222dee0>] wake_bit_function+0x0/0x60
[  342.330000]  [<822962b6>] sync_inodes_sb+0x96/0x280
[  342.331000]  [<8229a54a>] __sync_filesystem+0x2a/0xc0
[  342.332000]  [<8229a632>] sync_filesystem+0x52/0x80
[  342.333000]  [<8229a520>] __sync_filesystem+0x0/0xc0
[  342.334000]  [<822a50d4>] fsync_bdev+0x74/0xc0
[  342.335000]  [<8252e848>] printk+0x0/0x30
[  342.336000]  [<823a453e>] invalidate_partition+0x1e/0x60
[  342.337000]  [<823a4520>] invalidate_partition+0x0/0x60
[  342.338000]  [<822c2940>] del_gendisk+0x40/0x140
[  342.339000]  [<82400b7a>] sd_remove+0x3a/0xa0
[  342.340000]  [<8252f000>] preempt_schedule+0x0/0x60
[  342.341000]  [<823ec360>] __device_release_driver+0x40/0xa0
[  342.342000]  [<823e8fd4>] put_device+0x0/0x1c
[  342.343000]  [<823ec3dc>] device_release_driver+0x1c/0x40
[  342.344000]  [<822c61e0>] sysfs_remove_link+0x0/0x40
[  342.345000]  [<823ebf68>] bus_remove_device+0x48/0xa0
[  342.346000]  [<823e9c4c>] device_del+0xac/0x160
[  342.347000]  [<823e9ae0>] device_remove_file+0x0/0x20
[  342.348000]  [<823fe0ca>] __scsi_remove_device+0x8a/0xc0
[  342.349000]  [<823e8fd4>] put_device+0x0/0x1c
[  342.350000]  [<823f7b00>] scsi_device_set_state+0x0/0xe0
[  342.352000]  [<823fcca0>] scsi_forget_host+0x80/0x100
[  342.353000]  [<823fe040>] __scsi_remove_device+0x0/0xc0
[  342.354000]  [<823f41ee>] scsi_remove_host+0x6e/0x1c0
[  342.355000]  [<8243ad60>] remove_intf_ep_devs+0x0/0x80
[  342.356000]  [<823f38e0>] scsi_host_set_state+0x0/0xa0
[  342.357000]  [<82451772>] quiesce_and_remove_host+0x92/0x140
[  342.358000]  [<82211a20>] __wake_up+0x0/0x80
[  342.359000]  [<824518f6>] usb_stor_disconnect+0x16/0x40
[  342.360000]  [<8243d2ce>] usb_unbind_interface+0x2e/0x100
[  342.362000]  [<823ec360>] __device_release_driver+0x40/0xa0
[  342.363000]  [<823ec3dc>] device_release_driver+0x1c/0x40
[  342.364000]  [<822c61e0>] sysfs_remove_link+0x0/0x40
[  342.365000]  [<823ebf68>] bus_remove_device+0x48/0xa0
[  342.366000]  [<823e9c4c>] device_del+0xac/0x160
[  342.367000]  [<823e9ae0>] device_remove_file+0x0/0x20
[  342.368000]  [<8243c29a>] usb_disable_device+0x9a/0x140
[  342.369000]  [<823e9ba0>] device_del+0x0/0x160
[  342.370000]  [<82435d7a>] usb_disconnect+0x9a/0x160
[  342.371000]  [<82436b34>] hub_thread+0x374/0xf00
[  342.372000]  [<822123c8>] put_prev_task_fair+0xa8/0xe0
[  342.373000]  [<822105ea>] pick_next_task_fair+0x6a/0xc0
[  342.374000]  [<823ad180>] find_next_zero_bit+0x0/0xa0
[  342.375000]  [<82232360>] up+0x0/0xa0
[  342.376000]  [<8222dea0>] autoremove_wake_function+0x0/0x40
[  342.377000]  [<8222da80>] kthread+0x60/0x80
[  342.378000]  [<824367c0>] hub_thread+0x0/0xf00
[  342.379000]  [<82202da8>] kernel_thread_helper+0x8/0x20
[  342.380000]  [<8222da20>] kthread+0x0/0x80
[  342.382000]  [<82202da0>] kernel_thread_helper+0x0/0x20
[  342.383000] 
[  342.384000] INFO: task vplayer:1367 blocked for more than 1 seconds.
[  342.385000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  342.386000] Pid : 1367, Comm:              vplayer
[  342.387000] PC  : 299ce136 SP  : 7bc158cc SR  : 00008001 
[  342.388000] Tainted: P          
[  342.389000] R0  : 00000000 R1  : 2956df6c R2  : 00000000 R3  : 00000004
[  342.390000] R4  : 00000020 R5  : 01019bf0 R6  : 00000010 R7  : 00000000
[  342.391000] R8  : 00000010 R9  : 01019ba8 R10 : 01019bf0 R11 : 00000010
[  342.393000] R12 : 29a24304 R13 : fffa9ddc R14 : 00000000
[  342.394000] MACH: 00000000 MACL: 00000000 GBR : 2955f828 PR  : 299a11f2
[  342.395000] vplayer       D 8252ebbc     0  1367      1 0x00000000
[  342.398000] Stack: (0x8e9cfcf4 to 0x8e9d0000)
[  342.399000] fce0:                                              8e9cfd18
82639908 9028acdc 
[  342.406000] fd00: 9028aca0 8263954c 82637460 9028ac60 8252ecd6 2955f828
8e9cfd24 8268fb5c 
[  342.413000] fd20: 00000000 10000000 82217830 9028ae6c 9028ae68 fffe6398
ffffffff 3320205b 
[  342.421000] fd40: 352e3933 9028ade8 fffe28ad ffffffff 825311c6 8e9cfd70
000000f0 8252e920 
[  342.429000] fd60: 00000002 ffffff0f 8e9cfd70 9028ac60 8ff800a8 8ff800a8
9028ac60 00000002 
[  342.436000] fd80: 82531270 8e9cfda0 00000001 00000001 8ff801f4 8ff80080
825d0708 00000005 
[  342.443000] fda0: 8253058a 8e9cfda8 8235a280 8e9cfdb0 8238dd9a 8e9cfdc4
8ff80040 825d0708 
[  342.451000] fdc0: 8e9cfe0c 82639a40 8252e920 10000000 82217830 00000005
8e9cfea0 00000000 
[  342.459000] fde0: 8e9cfe2f 8268baa8 00000000 8268fb48 0000000f 00000000
3320205b 8ff801c6 
[  342.466000] fe00: 9002c520 00000000 8b05c800 00000001 00000000 8ff80158
8ff80040 8e9cff24 
[  342.473000] fe20: 3320205b 352e3933 30303734 00000153 00000000 8252e866
00000060 00000000 
[  342.481000] fe40: 00000010 00000010 00000001 8238938a 8e9cfe6c 9002c520
00000060 00000000 
[  342.489000] fe60: 8e9cff24 00000001 8e9cfea0 8e9cfee8 00000001 82276ae6
8e9cfe94 8e9cfea0 
[  342.496000] fe80: 01019bf0 8e9cfee0 000001e8 825d0708 00000060 00000000
9002c520 8e9cff78 
[  342.503000] fea0: 00000036 82639a40 00000000 00000001 ffffffff 9002c520
00000000 00000000 
[  342.511000] fec0: 00000000 00000000 9028ac60 00000000 00000000 00000034
9028ac60 8222dea0 
[  342.519000] fee0: 8e9cfee0 8e9cfee0 00000060 00000000 8268fb48 0000000f
00000034 3320205b 
[  342.526000] ff00: 00000010 30303434 00205d30 00000153 00000000 8252e866
8e9cff34 01019bf0 
[  342.533000] ff20: 825d0708 01019bf0 00000010 82277346 8e9cff4c 01019bf0
825d0708 01019bf0 
[  342.541000] ff40: 8e9cff78 9002c520 00000010 fffffff7 8e9cff44 82277608
8e9cff70 00000020 
[  342.549000] ff60: 825d0708 fffffff7 8e9cff44 9002c520 9002c520 00000010
00000060 00000000 
[  342.556000] ff80: 00000001 82208920 00000000 fffa9ddc 00000594 00000000
00000071 00000100 
[  342.563000] ffa0: 822775a0 00000000 2956df6c 00000000 00000004 00000020
01019bf0 00000010 
[  342.571000] ffc0: 00000000 00000010 01019ba8 01019bf0 00000010 29a24304
fffa9ddc 00000000 
[  342.579000] ffe0: 7bc158cc 299ce136 299a11f2 00008001 2955f828 00000000
00000000 0000004c 
[  342.586000] 
[  342.586000] Call trace:
[  342.587000]  [<8252ecd6>] schedule+0x3b6/0x580
[  342.588000]  [<82217830>] vprintk+0x330/0x380
[  342.589000]  [<825311c6>] __down_write_nested+0xc6/0x164
[  342.590000]  [<8252e920>] schedule+0x0/0x580
[  342.591000]  [<82531270>] __down_write+0xc/0x1c
[  342.592000]  [<8253058a>] down_write+0xa/0x18
[  342.593000]  [<8235a280>] xfs_ilock+0x100/0x1a0
[  342.594000]  [<8238dd9a>] xfs_write+0x29a/0xb60
[  342.595000]  [<8252e920>] schedule+0x0/0x580
[  342.596000]  [<82217830>] vprintk+0x330/0x380
[  342.597000]  [<8252e866>] printk+0x1e/0x30
[  342.598000]  [<8238938a>] xfs_file_aio_write+0x6a/0xa0
[  342.599000]  [<82276ae6>] do_sync_write+0x106/0x320
[  342.600000]  [<8222dea0>] autoremove_wake_function+0x0/0x40
[  342.601000]  [<8252e866>] printk+0x1e/0x30
[  342.602000]  [<82277346>] vfs_write+0xa6/0x180
[  342.603000]  [<82277608>] sys_write+0x68/0x120
[  342.604000]  [<82208920>] syscall_call+0xa/0xe
[  342.605000]  [<822775a0>] sys_write+0x0/0x120

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