From: Kailas Joshi <kailas.joshi@gmail.com>
To: Jan Kara <jack@suse.cz>
Cc: tytso@mit.edu, linux-ext4@vger.kernel.org,
Jiaying Zhang <jiayingz@google.com>
Subject: Re: Help on Implementation of EXT3 type Ordered Mode in EXT4
Date: Tue, 23 Mar 2010 16:11:45 +0530 [thread overview]
Message-ID: <38f6fb7d1003230341j4ff52fffidc614d566476b5bc@mail.gmail.com> (raw)
In-Reply-To: <20100322165209.GB4754@quack.suse.cz>
[-- Attachment #1: Type: text/plain, Size: 14642 bytes --]
Thanks Jan. This has definitely given me some pointers to work upon.
I have Lock Debugging enables but that didn't give any warnings.
However, when I did echo "w" >/proc/sysrq-trigger after system lockup,
I got the stack trace for locked up process.
Following are the stack traces of the processes (I suspect) resulting
in total system lockup -
-----------------------------------------------------------------------------------------------------------------------------------------
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] jbd2/sdb1-8 D
00000046 0 5913 2 0x00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] c4473b90
00000046 00000001 00000046 ce9e4a00 00000000 c4473b70 00000046
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] 00000000
c061de60 c061de60 c061de60 c01513bd 00000000 ce9e4a94 ce9e4a00
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] ce9e4b94
c1407e60 c01513ed 00000001 c13430bc 00000296 cfac9278 c4473b90
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] Call Trace:
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01513bd>] ?
prepare_to_wait_exclusive+0x1d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01513ed>] ?
prepare_to_wait_exclusive+0x4d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c04004f5>]
io_schedule+0x35/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f75>]
sync_page+0x35/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0400820>]
__wait_on_bit_lock+0x40/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f40>] ?
sync_page+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f1d>]
__lock_page+0x4d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151250>] ?
wake_bit_function+0x0/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01ad987>]
write_cache_pages+0x437/0x5d0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0237930>] ?
__mpage_da_writepage+0x0/0x170
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01ad310>] ?
mapping_tagged+0x0/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01ad310>] ?
mapping_tagged+0x0/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c02387ec>]
ext4_da_writepages+0x2ec/0x7a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c02c514a>] ?
number+0x25a/0x270
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0328ada>] ?
vt_console_print+0x1da/0x2a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c040238d>] ?
_spin_unlock+0x1d/0x20
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0328ada>] ?
vt_console_print+0x1da/0x2a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0155aeb>] ?
up+0x2b/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01375e7>] ?
release_console_sem+0x197/0x1d0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0238500>] ?
ext4_da_writepages+0x0/0x7a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01adb6d>]
do_writepages+0x1d/0x30
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a76d6>]
__filemap_fdatawrite_range+0x66/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a81e6>]
filemap_fdatawrite+0x26/0x30
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a821c>]
filemap_write_and_wait+0x2c/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c023228a>]
ext4_sync_alloc_da_blocks+0x5a/0x90
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0244c0c>]
alloc_on_commit_callback+0x6c/0xc0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c02693a5>]
jbd2_journal_commit_transaction+0x335/0x1ae0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c012c10c>] ?
finish_task_switch+0x6c/0xe0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0143225>] ?
lock_timer_base+0x25/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c04025ad>] ?
_spin_lock_irqsave+0x4d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0143287>] ?
try_to_del_timer_sync+0x37/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c014336a>] ?
del_timer_sync+0x6a/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0143300>] ?
del_timer_sync+0x0/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c02703d6>]
kjournald2+0xb6/0x380
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151210>] ?
autoremove_wake_function+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0270320>] ?
kjournald2+0x0/0x380
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151144>]
kthread+0x74/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01510d0>] ?
kthread+0x0/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0103a07>]
kernel_thread_helper+0x7/0x10
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] flush-8:16 D
c47f1cc0 0 5916 2 0x00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] c47f1cd4
00000046 00000002 c47f1cc0 c14031c4 00000000 c47f1cb4 00000046
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] 00000000
c061de60 c061de60 c061de60 c06191c4 c1407e70 ce9e6f94 ce9e6f00
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] ce9e7094
c1407e60 000095a3 00000000 00000000 00000000 00000000 00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] Call Trace:
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c04004f5>]
io_schedule+0x35/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f75>]
sync_page+0x35/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0400820>]
__wait_on_bit_lock+0x40/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f40>] ?
sync_page+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f1d>]
__lock_page+0x4d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151250>] ?
wake_bit_function+0x0/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0238c06>]
ext4_da_writepages+0x706/0x7a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6c30>] ?
find_get_pages_tag+0x0/0x120
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0162127>] ?
lock_release_non_nested+0x187/0x2b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f51d5>] ?
writeback_inodes_wb+0x245/0x3b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f4925>] ?
writeback_single_inode+0x95/0x260
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f51d5>] ?
writeback_inodes_wb+0x245/0x3b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f4925>] ?
writeback_single_inode+0x95/0x260
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0238500>] ?
ext4_da_writepages+0x0/0x7a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01adb6d>]
do_writepages+0x1d/0x30
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f4930>]
writeback_single_inode+0xa0/0x260
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f5216>]
writeback_inodes_wb+0x286/0x3b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f543f>]
wb_writeback+0xff/0x1a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f5606>] ?
wb_do_writeback+0x86/0x1e0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f573b>]
wb_do_writeback+0x1bb/0x1e0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f55a2>] ?
wb_do_writeback+0x22/0x1e0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f5792>]
bdi_writeback_task+0x32/0xa0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01bca5e>]
bdi_start_fn+0x5e/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01bca00>] ?
bdi_start_fn+0x0/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151144>]
kthread+0x74/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01510d0>] ?
kthread+0x0/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0103a07>]
kernel_thread_helper+0x7/0x10
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] write_test D
c01272a0 0 5966 1 0x00000005
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] c2149c50
00200046 00200046 c01272a0 00000001 c4f09910 00200296 c4f09910
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] c2149c14
c061de60 c061de60 c061de60 c2149c34 c01272a0 ce9e2594 ce9e2500
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] ce9e2694
c1607e60 00200246 c0267d9c 00000001 c4f09814 c4f09800 c4f09814
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] Call Trace:
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01272a0>] ?
__wake_up+0x40/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01272a0>] ?
__wake_up+0x40/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0267d9c>] ?
start_this_handle+0x36c/0x580
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0267da1>]
start_this_handle+0x371/0x580
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0160bac>] ?
lockdep_init_map+0x3c/0x500
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151210>] ?
autoremove_wake_function+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0268055>]
jbd2_journal_start+0xa5/0xd0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0248663>]
ext4_journal_start_sb+0x53/0xa0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0245db3>] ?
__ext4_journal_stop+0x43/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0238ef4>]
ext4_da_write_begin+0x254/0x3a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0239470>] ?
ext4_da_get_block_prep+0x0/0x360
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a785e>]
generic_file_buffered_write+0xde/0x260
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a7e36>]
__generic_file_aio_write+0x276/0x510
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0400e04>] ?
mutex_lock_nested+0x1e4/0x270
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a8128>]
generic_file_aio_write+0x58/0xc0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c022fa0f>]
ext4_file_write+0x3f/0xd0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0147ed5>] ?
ptrace_stop+0xa5/0xf0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d85bd>]
do_sync_write+0xcd/0x110
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c014840a>] ?
ptrace_notify+0x9a/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151210>] ?
autoremove_wake_function+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c028291f>] ?
security_file_permission+0xf/0x20
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d877c>] ?
rw_verify_area+0x6c/0xe0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d8de6>]
vfs_write+0x96/0x190
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d84f0>] ?
do_sync_write+0x0/0x110
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d950d>]
sys_write+0x3d/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0102f55>]
syscall_call+0x7/0xb
-----------------------------------------------------------------------------------------------------------------------------------------
I am also attaching complete trace for your reference.
write_test is my testing executable that performs many sequential
writes to a file.
This stack trace confirms that lock_page() in write_cache_pages() is
resulting into this lockup.
I have few questions here.
I guess process named jbd2/sdb1-8 is kjournald thread. But what is
flush-8:16 process? Is it the kernel thread for periodically writing
dirty pages to disk?
Is it the case that these threads are running concurrently at certain
time and are trying to get lock on same pages resulting into deadlock?
If yes, what can be the reason? Am I doing mistake in calling
filemap_write_and_wait() in journal_commit flow?
Please reply.
Thanks & Regards,
Kailas
On 22 March 2010 22:22, Jan Kara <jack@suse.cz> wrote:
>
> Hi,
>
> On Fri 19-03-10 08:53:08, Kailas Joshi wrote:
> > I am facing some problems while implementing alloc_on_commit.
> > While performing exhaustive write operations(for example using postmark),
> > system locks up after some time.
> > It runs fine for (simple)non-exhaustive write operations.
> >
> > I am using filemap_write_and_wait() in journal commit callback for
> > performing synchronous block allocation. It uses special journal handle
> > which enables use of early reservations.
> > Is it right to use this function here? If no, is there any other alternative
> > that should be used in this scenario?
> >
> > I am using following strategy -
> > 1) ext4_da_get_block_prep() marks delayed-allocation buffers with BH_DA
> > after reserving space for them.
> We have a BH_Delay flag for this already. OK, probably you need a
> temporary flag which you can clear in ext4_da_write_begin. I'd find
> counting number of BH_Delay buffers before and after block_write_begin
> call nicer...
>
> > 2) ext4_da_write_begin() counts the number of buffers marked with BH_DA and
> > reserves credits for block allocation.
> > 3) journal_stop() accumulates the unused credits of a handle in the
> > transaction.
> > 4) journal_start() when called with nblocks=0, creates a special handle with
> > the credits accumulated by all previous handles(by step 2).
> This is a hack. I'd rather create a separate JBD2 function for this.
>
> > 5) journal_commit() creates special handle for block allocation(as in step
> > 4) and calls filemap_write_and_wait() to perform block allocation.
> >
> > I am also sending the patch(for kernel 2.6.32.4) for my implementation (also
> > available at
> > http://www.cse.iitb.ac.in/~kailasjoshi/files/alloc_on_commit.patch).
> >
> > Being new to filesystem development, I am not able to identify the problem.
> > I will be very greatful if someone can help me out.
> Probably you are hitting some lock inversion problem. I suggest you
> compile the kernel with lockdep enabled (in Kernel hacking -> Lock debugging
> -> Prove lock correctness or something like that) and see whether it issues
> some warnings. If not, you can get backtraces of the locked up processes
> by pressing Alt-Sysrq-w (or echo "w" >/proc/sysrq-trigger).
>
> Honza
> --
> Jan Kara <jack@suse.cz>
> SUSE Labs, CR
[-- Attachment #2: syslockup.log --]
[-- Type: application/octet-stream, Size: 29089 bytes --]
Mar 23 15:24:40 kailas-desktop kernel: [ 532.233997] SysRq : Show Blocked State
Mar 23 15:24:40 kailas-desktop kernel: [ 532.234123] task PC stack pid father
Mar 23 15:24:40 kailas-desktop kernel: [ 532.234355] vmware-guestd D cfbaff0c 0 5067 1 0x00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.234558] cfbaff20 00000046 00000002 cfbaff0c c14031c4 00000000 cf908940 c0724250
Mar 23 15:24:40 kailas-desktop kernel: [ 532.234652] cfbaff48 c061de60 c061de60 c061de60 c06191c4 c1407e70 cf9089d4 cf908940
Mar 23 15:24:40 kailas-desktop kernel: [ 532.234677] cf908ad4 c1407e60 000076be 00000000 00000000 00000000 00000000 00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.234752] Call Trace:
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236123] [<c0401289>] mutex_lock_killable_nested+0x129/0x2e0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236197] [<c01e6ec1>] ? vfs_readdir+0x61/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236212] [<c01e6ec1>] ? vfs_readdir+0x61/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236224] [<c01e6ec1>] vfs_readdir+0x61/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236235] [<c01e6cb0>] ? filldir64+0x0/0xe0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236245] [<c01e6f76>] sys_getdents64+0x66/0xc0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236260] [<c0102e6c>] sysenter_do_call+0x12/0x33
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236378] anacron D c59c7da4 0 5421 1 0x00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236394] c59c7db8 00000046 00000002 c59c7da4 c14031c4 00000000 c1a43780 c0724250
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236420] 00000246 c061de60 c061de60 c061de60 c06191c4 c1407e70 c1a43814 c1a43780
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236445] c1a43914 c1407e60 000095a3 00000000 00000000 00000000 00000000 00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236470] Call Trace:
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236484] [<c0400d2a>] mutex_lock_nested+0x10a/0x270
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236495] [<c01e0f55>] ? do_lookup+0xa5/0x1b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236506] [<c01e0f55>] do_lookup+0xa5/0x1b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236517] [<c01e3280>] __link_path_walk+0x660/0xcc0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236527] [<c01e149d>] ? path_init+0xcd/0x150
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236537] [<c01e14bc>] ? path_init+0xec/0x150
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236547] [<c01e391f>] path_walk+0x3f/0x90
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236557] [<c01e3a80>] do_path_lookup+0x50/0xa0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236567] [<c01e442a>] user_path_at+0x3a/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236580] [<c01c02ce>] ? handle_mm_fault+0x13e/0x880
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236591] [<c01dc814>] vfs_fstatat+0x44/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236602] [<c04049b1>] ? do_page_fault+0x111/0x3d0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236613] [<c01dc89b>] vfs_lstat+0x1b/0x20
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236624] [<c01dc8b4>] sys_lstat64+0x14/0x30
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236635] [<c0155586>] ? up_read+0x16/0x30
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236646] [<c0404a70>] ? do_page_fault+0x1d0/0x3d0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236662] [<c02c7e4f>] ? copy_to_user+0x4f/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236672] [<c0102dc8>] ? resume_userspace+0x8/0x30
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236683] [<c0102e6c>] sysenter_do_call+0x12/0x33
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236694] nautilus D c0267c7b 0 5969 5582 0x00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236709] c5587e80 00000046 00000000 c0267c7b 00000002 c5587e68 00000000 c015141f
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236733] 00000000 c061de60 c061de60 c061de60 c06191c4 c1407e70 ce9e09d4 ce9e0940
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236758] ce9e0ad4 c1407e60 00007597 c14032e0 00000001 00000000 00000000 00000400
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236782] Call Trace:
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236798] [<c0267c7b>] ? start_this_handle+0x24b/0x580
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236810] [<c015141f>] ? prepare_to_wait+0x1f/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236966] [<c0267c7b>] start_this_handle+0x24b/0x580
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236979] [<c0160bac>] ? lockdep_init_map+0x3c/0x500
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236990] [<c0151210>] ? autoremove_wake_function+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236991] [<c0268055>] jbd2_journal_start+0xa5/0xd0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.236992] [<c0248663>] ext4_journal_start_sb+0x53/0xa0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237044] [<c023943f>] ext4_dirty_inode+0x1f/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237055] [<c01f594c>] __mark_inode_dirty+0x2c/0x140
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237065] [<c01ecfe2>] touch_atime+0xa2/0xf0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01e6f00>] vfs_readdir+0xa0/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01e6cb0>] ? filldir64+0x0/0xe0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01e6f76>] sys_getdents64+0x66/0xc0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0102e6c>] sysenter_do_call+0x12/0x33
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] jbd2/sdb1-8 D 00000046 0 5913 2 0x00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] c4473b90 00000046 00000001 00000046 ce9e4a00 00000000 c4473b70 00000046
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] 00000000 c061de60 c061de60 c061de60 c01513bd 00000000 ce9e4a94 ce9e4a00
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] ce9e4b94 c1407e60 c01513ed 00000001 c13430bc 00000296 cfac9278 c4473b90
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] Call Trace:
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01513bd>] ? prepare_to_wait_exclusive+0x1d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01513ed>] ? prepare_to_wait_exclusive+0x4d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c04004f5>] io_schedule+0x35/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f75>] sync_page+0x35/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0400820>] __wait_on_bit_lock+0x40/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f40>] ? sync_page+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f1d>] __lock_page+0x4d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151250>] ? wake_bit_function+0x0/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01ad987>] write_cache_pages+0x437/0x5d0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0237930>] ? __mpage_da_writepage+0x0/0x170
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01ad310>] ? mapping_tagged+0x0/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01ad310>] ? mapping_tagged+0x0/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c02387ec>] ext4_da_writepages+0x2ec/0x7a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c02c514a>] ? number+0x25a/0x270
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0328ada>] ? vt_console_print+0x1da/0x2a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c040238d>] ? _spin_unlock+0x1d/0x20
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0328ada>] ? vt_console_print+0x1da/0x2a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0155aeb>] ? up+0x2b/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01375e7>] ? release_console_sem+0x197/0x1d0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0238500>] ? ext4_da_writepages+0x0/0x7a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01adb6d>] do_writepages+0x1d/0x30
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a76d6>] __filemap_fdatawrite_range+0x66/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a81e6>] filemap_fdatawrite+0x26/0x30
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a821c>] filemap_write_and_wait+0x2c/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c023228a>] ext4_sync_alloc_da_blocks+0x5a/0x90
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0244c0c>] alloc_on_commit_callback+0x6c/0xc0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c02693a5>] jbd2_journal_commit_transaction+0x335/0x1ae0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c012c10c>] ? finish_task_switch+0x6c/0xe0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0143225>] ? lock_timer_base+0x25/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c04025ad>] ? _spin_lock_irqsave+0x4d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0143287>] ? try_to_del_timer_sync+0x37/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c014336a>] ? del_timer_sync+0x6a/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0143300>] ? del_timer_sync+0x0/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c02703d6>] kjournald2+0xb6/0x380
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151210>] ? autoremove_wake_function+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0270320>] ? kjournald2+0x0/0x380
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151144>] kthread+0x74/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01510d0>] ? kthread+0x0/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0103a07>] kernel_thread_helper+0x7/0x10
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] flush-8:16 D c47f1cc0 0 5916 2 0x00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] c47f1cd4 00000046 00000002 c47f1cc0 c14031c4 00000000 c47f1cb4 00000046
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] 00000000 c061de60 c061de60 c061de60 c06191c4 c1407e70 ce9e6f94 ce9e6f00
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] ce9e7094 c1407e60 000095a3 00000000 00000000 00000000 00000000 00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] Call Trace:
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c04004f5>] io_schedule+0x35/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f75>] sync_page+0x35/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0400820>] __wait_on_bit_lock+0x40/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f40>] ? sync_page+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6f1d>] __lock_page+0x4d/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151250>] ? wake_bit_function+0x0/0x60
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0238c06>] ext4_da_writepages+0x706/0x7a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a6c30>] ? find_get_pages_tag+0x0/0x120
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0162127>] ? lock_release_non_nested+0x187/0x2b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f51d5>] ? writeback_inodes_wb+0x245/0x3b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f4925>] ? writeback_single_inode+0x95/0x260
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f51d5>] ? writeback_inodes_wb+0x245/0x3b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f4925>] ? writeback_single_inode+0x95/0x260
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0238500>] ? ext4_da_writepages+0x0/0x7a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01adb6d>] do_writepages+0x1d/0x30
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f4930>] writeback_single_inode+0xa0/0x260
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f5216>] writeback_inodes_wb+0x286/0x3b0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f543f>] wb_writeback+0xff/0x1a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f5606>] ? wb_do_writeback+0x86/0x1e0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f573b>] wb_do_writeback+0x1bb/0x1e0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f55a2>] ? wb_do_writeback+0x22/0x1e0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01f5792>] bdi_writeback_task+0x32/0xa0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01bca5e>] bdi_start_fn+0x5e/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01bca00>] ? bdi_start_fn+0x0/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151144>] kthread+0x74/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01510d0>] ? kthread+0x0/0x80
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0103a07>] kernel_thread_helper+0x7/0x10
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] write_test D c01272a0 0 5966 1 0x00000005
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] c2149c50 00200046 00200046 c01272a0 00000001 c4f09910 00200296 c4f09910
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] c2149c14 c061de60 c061de60 c061de60 c2149c34 c01272a0 ce9e2594 ce9e2500
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] ce9e2694 c1607e60 00200246 c0267d9c 00000001 c4f09814 c4f09800 c4f09814
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] Call Trace:
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01272a0>] ? __wake_up+0x40/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01272a0>] ? __wake_up+0x40/0x50
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0267d9c>] ? start_this_handle+0x36c/0x580
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0267da1>] start_this_handle+0x371/0x580
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0160bac>] ? lockdep_init_map+0x3c/0x500
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151210>] ? autoremove_wake_function+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0268055>] jbd2_journal_start+0xa5/0xd0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0248663>] ext4_journal_start_sb+0x53/0xa0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0245db3>] ? __ext4_journal_stop+0x43/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0238ef4>] ext4_da_write_begin+0x254/0x3a0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0239470>] ? ext4_da_get_block_prep+0x0/0x360
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a785e>] generic_file_buffered_write+0xde/0x260
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a7e36>] __generic_file_aio_write+0x276/0x510
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0400e04>] ? mutex_lock_nested+0x1e4/0x270
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01a8128>] generic_file_aio_write+0x58/0xc0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c022fa0f>] ext4_file_write+0x3f/0xd0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0147ed5>] ? ptrace_stop+0xa5/0xf0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d85bd>] do_sync_write+0xcd/0x110
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c014840a>] ? ptrace_notify+0x9a/0xb0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0151210>] ? autoremove_wake_function+0x0/0x40
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c028291f>] ? security_file_permission+0xf/0x20
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d877c>] ? rw_verify_area+0x6c/0xe0
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d8de6>] vfs_write+0x96/0x190
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d84f0>] ? do_sync_write+0x0/0x110
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c01d950d>] sys_write+0x3d/0x70
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] [<c0102f55>] syscall_call+0x7/0xb
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] gnome-termina D c23d1cd4 0 5977 1 0x00000000
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] c23d1ce8 00000046 00000002 c23d1cd4 c14031c4 00000000 ce9e65c0 c0724250
Mar 23 15:24:40 kailas-desktop kernel: [ 532.237073] 00000246 c061de60 c061de60 c061de60 c06191c4 c1407e70 ce9e6654 ce9e65c0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] ce9e6754 c1407e60 0000919b 00000000 00000000 00000000 00000000 00000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] Call Trace:
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c0400d2a>] mutex_lock_nested+0x10a/0x270
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e0f55>] ? do_lookup+0xa5/0x1b0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e0f55>] do_lookup+0xa5/0x1b0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e0a8b>] ? acl_permission_check+0x5b/0x90
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e2d59>] __link_path_walk+0x139/0xcc0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e149d>] ? path_init+0xcd/0x150
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e14bc>] ? path_init+0xec/0x150
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e391f>] path_walk+0x3f/0x90
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e3a80>] do_path_lookup+0x50/0xa0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e45b4>] kern_path+0x24/0x50
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c036cd5a>] ? sock_wmalloc+0x3a/0x70
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c036f7f0>] ? __alloc_skb+0x50/0x130
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c03e30bb>] unix_find_other+0x2b/0x1a0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c036cd5a>] ? sock_wmalloc+0x3a/0x70
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c03e4eb4>] unix_stream_connect+0xd4/0x410
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c0368db1>] sys_connect+0x91/0xb0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c03697c6>] sys_socketcall+0x276/0x2a0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c0102e6c>] sysenter_do_call+0x12/0x33
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] write_test D 000002b1 0 5982 1 0x00000005
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] ccd75e84 00200046 ccd75e90 000002b1 00000000 cc3e054c c1b45c80 c0724250
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] ccd75e7c c061de60 c061de60 c061de60 c1b45c80 00000000 c1b45d14 c1b45c80
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] c1b45e14 c1407e60 00000000 00000000 c01e4a39 00000000 00000000 cc3e054c
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] Call Trace:
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e4a39>] ? do_filp_open+0x2e9/0x820
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c0400d2a>] mutex_lock_nested+0x10a/0x270
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e4a39>] ? do_filp_open+0x2e9/0x820
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e4a39>] do_filp_open+0x2e9/0x820
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01edfd7>] ? alloc_fd+0xd7/0xf0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c040238d>] ? _spin_unlock+0x1d/0x20
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01d69e1>] do_sys_open+0x51/0x110
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01d6b09>] sys_open+0x29/0x40
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c0102f55>] syscall_call+0x7/0xb
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] write_test D 000002b1 0 5986 1 0x00000005
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] c207fe84 00200046 c207fe90 000002b1 00000000 cc3e054c c1b42e40 c0724250
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] c207fe7c c061de60 c061de60 c061de60 c1b42e40 00000000 c1b42ed4 c1b42e40
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] c1b42fd4 c1607e60 00000000 00000000 c01e4a39 00000000 00000000 cc3e054c
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] Call Trace:
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e4a39>] ? do_filp_open+0x2e9/0x820
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c0400d2a>] mutex_lock_nested+0x10a/0x270
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e4a39>] ? do_filp_open+0x2e9/0x820
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01e4a39>] do_filp_open+0x2e9/0x820
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01edfd7>] ? alloc_fd+0xd7/0xf0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c040238d>] ? _spin_unlock+0x1d/0x20
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01d69e1>] do_sys_open+0x51/0x110
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c01d6b09>] sys_open+0x29/0x40
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] [<c0102f55>] syscall_call+0x7/0xb
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] Sched Debug Version: v0.09, 2.6.32.4 #51
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] now at 532239.527408 msecs
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .jiffies : 58058
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .sysctl_sched_latency : 10.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .sysctl_sched_min_granularity : 2.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .sysctl_sched_wakeup_granularity : 2.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .sysctl_sched_child_runs_first : 0.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .sysctl_sched_features : 15834235
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073]
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] cpu#0, 1500.000 MHz
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_running : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .load : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_switches : 271482
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_load_updates : 33373
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_uninterruptible : 21
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .next_balance : 0.058121
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .curr->pid : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .clock : 532233.054588
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[0] : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[1] : 340
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[2] : 399
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[3] : 375
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[4] : 370
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073]
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] cfs_rq[0]:
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .exec_clock : 0.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .MIN_vruntime : 0.000001
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .min_vruntime : 98238.338638
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .max_vruntime : 0.000001
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .spread : 0.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .spread0 : 0.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_running : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .load : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_spread_over : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073]
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] rt_rq[0]:
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .rt_nr_running : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .rt_throttled : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .rt_time : 0.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .rt_runtime : 950.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073]
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] runnable tasks:
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] ----------------------------------------------------------------------------------------------------------
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073]
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] cpu#1, 1500.000 MHz
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_running : 1
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .load : 1024
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_switches : 267653
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_load_updates : 27584
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_uninterruptible : 4294967284
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .next_balance : 0.058058
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .curr->pid : 5894
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .clock : 532233.205948
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[0] : 1024
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[1] : 563
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[2] : 439
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[3] : 387
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .cpu_load[4] : 389
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073]
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] cfs_rq[1]:
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .exec_clock : 0.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .MIN_vruntime : 0.000001
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .min_vruntime : 290214.376945
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .max_vruntime : 0.000001
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .spread : 0.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .spread0 : 191976.038307
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_running : 1
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .load : 1024
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .nr_spread_over : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073]
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] rt_rq[1]:
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .rt_nr_running : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .rt_throttled : 0
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .rt_time : 0.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] .rt_runtime : 950.000000
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073]
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] runnable tasks:
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] ----------------------------------------------------------------------------------------------------------
Mar 23 15:24:41 kailas-desktop kernel: [ 532.237073] R bash 5894 290210.369311 313 140 0 0 0.000000 0.000000 0.000000
next prev parent reply other threads:[~2010-03-23 10:41 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-04 5:45 Help on Implementation of EXT3 type Ordered Mode in EXT4 Kailas Joshi
2010-02-09 16:05 ` Jan Kara
2010-02-09 17:41 ` tytso
[not found] ` <38f6fb7d1002102301x278c3ddt153f570dd1423074@mail.gmail.com>
2010-02-11 7:32 ` Kailas Joshi
2010-02-11 19:56 ` tytso
2010-02-12 3:22 ` Kailas Joshi
2010-02-12 20:07 ` tytso
2010-02-13 8:43 ` Kailas Joshi
2010-02-15 15:00 ` Jan Kara
2010-02-16 10:10 ` Kailas Joshi
2010-02-16 13:10 ` Jan Kara
2010-02-16 14:18 ` tytso
2010-02-17 15:37 ` Kailas Joshi
[not found] ` <38f6fb7d1003182023j5513640csdc797adb49393ea0@mail.gmail.com>
2010-03-22 16:52 ` Jan Kara
2010-03-23 10:41 ` Kailas Joshi [this message]
2010-03-29 15:45 ` Jan Kara
2010-04-17 4:42 ` Kailas Joshi
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