Re: GFS fail with iozone

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Hi,

I am using a nimble storage box.

It looks like I used the same initiatior name on all of my nodes :)

I will test again.

Thanks,

Andrew


On Sep 21, 2012, at 10:34 AM, Steven Whitehouse wrote:

> Hi,
> 
> On Thu, 2012-09-20 at 16:25 +0200, Andrew Holway wrote:
>> It seems that my node004 is the problem.
>> 
>> I cannot kill the iozone processes and I find this in the logs.
>> 
> This looks like there is some problem with the i/o stack below the level
> of GFS2. What kind of storage are you using? If this is a JBOD then
> perhaps there is a faulty disk or something like that?
> 
> Steve.
> 
>> Sep 20 15:59:09 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 15:59:09 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 15:59:09 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 15:59:09 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 01 94 88 a0 00 00 20 00
>> Sep 20 15:59:11 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 15:59:11 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 15:59:11 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 15:59:11 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 06 51 ff 90 00 00 20 00
>> Sep 20 15:59:13 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 15:59:13 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 15:59:13 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 15:59:13 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 06 46 d5 c0 00 00 20 00
>> Sep 20 15:59:14 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 15:59:14 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 15:59:14 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 15:59:14 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 03 da c7 78 00 00 20 00
>> Sep 20 15:59:16 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 15:59:16 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 15:59:16 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 15:59:16 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 06 f5 8f 60 00 00 20 00
>> Sep 20 15:59:17 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 15:59:17 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 15:59:17 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 15:59:17 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 01 30 7c 90 00 00 20 00
>> Sep 20 15:59:19 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 15:59:19 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 15:59:19 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 15:59:19 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 05 79 8b e0 00 00 20 00
>> Sep 20 15:59:20 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 15:59:20 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 15:59:20 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 15:59:20 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 04 37 13 08 00 00 20 00
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[4d 00 40 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[37 00 0c 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[4d 00 40 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[37 00 0c 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[4d 00 40 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[37 00 0c 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[4d 00 40 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[37 00 0c 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[4d 00 40 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[37 00 0c 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[4d 00 40 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[37 00 0c 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[4d 00 40 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[37 00 0c 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[4d 00 40 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:00:11 node004 kernel: hpsa 0000:02:00.0: cp ffff88007f900000 has check condition: unknown type: Sense: 0x5, ASC: 0x20, ASCQ: 0x0, Returning result: 0x2, cmd=[37 00 0c 00 00 00 00 00 04 00 00 00 00 00 00 00]
>> Sep 20 16:02:15 node004 kernel: INFO: task glock_workqueue:9820 blocked for more than 120 seconds.
>> Sep 20 16:02:15 node004 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>> Sep 20 16:02:15 node004 kernel: glock_workque D 000000000000001b     0  9820      2 0x00000080
>> Sep 20 16:02:15 node004 kernel: ffff8820150a9c70 0000000000000046 0000000000000004 00000000aa8f20cf
>> Sep 20 16:02:15 node004 kernel: ffff881fffd050c8 0000000000000441 ffff8820150a9c10 ffffffff811acd5e
>> Sep 20 16:02:15 node004 kernel: ffff882015b39ab8 ffff8820150a9fd8 000000000000fb88 ffff882015b39ab8
>> Sep 20 16:02:15 node004 kernel: Call Trace:
>> Sep 20 16:02:15 node004 kernel: [<ffffffff811acd5e>] ? submit_bh+0x10e/0x150
>> Sep 20 16:02:15 node004 kernel: [<ffffffff8109cd39>] ? ktime_get_ts+0xa9/0xe0
>> Sep 20 16:02:15 node004 kernel: [<ffffffff814fdfc3>] io_schedule+0x73/0xc0
>> Sep 20 16:02:15 node004 kernel: [<ffffffffa094aaca>] gfs2_log_flush+0x47a/0x6f0 [gfs2]
>> Sep 20 16:02:15 node004 kernel: [<ffffffff810629d3>] ? dequeue_entity+0x113/0x2e0
>> Sep 20 16:02:15 node004 kernel: [<ffffffff810920d0>] ? autoremove_wake_function+0x0/0x40
>> Sep 20 16:02:15 node004 kernel: [<ffffffffa09477d0>] inode_go_sync+0x80/0x160 [gfs2]
>> Sep 20 16:02:15 node004 kernel: [<ffffffffa0946336>] do_xmote+0x156/0x280 [gfs2]
>> Sep 20 16:02:15 node004 kernel: [<ffffffff814fd830>] ? thread_return+0x4e/0x76e
>> Sep 20 16:02:15 node004 kernel: [<ffffffffa0946551>] run_queue+0xf1/0x1d0 [gfs2]
>> Sep 20 16:02:15 node004 kernel: [<ffffffffa0946d2a>] glock_work_func+0x7a/0x1b0 [gfs2]
>> Sep 20 16:02:15 node004 kernel: [<ffffffffa0946cb0>] ? glock_work_func+0x0/0x1b0 [gfs2]
>> Sep 20 16:02:15 node004 kernel: [<ffffffff8108c760>] worker_thread+0x170/0x2a0
>> Sep 20 16:02:15 node004 kernel: [<ffffffff810920d0>] ? autoremove_wake_function+0x0/0x40
>> Sep 20 16:02:15 node004 kernel: [<ffffffff8108c5f0>] ? worker_thread+0x0/0x2a0
>> Sep 20 16:02:15 node004 kernel: [<ffffffff81091d66>] kthread+0x96/0xa0
>> Sep 20 16:02:15 node004 kernel: [<ffffffff8100c14a>] child_rip+0xa/0x20
>> Sep 20 16:02:15 node004 kernel: [<ffffffff81091cd0>] ? kthread+0x0/0xa0
>> Sep 20 16:02:15 node004 kernel: [<ffffffff8100c140>] ? child_rip+0x0/0x20
>> Sep 20 16:02:21 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 16:02:21 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 16:02:21 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 16:02:21 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 00 0e 6e c0 00 00 20 00
>> Sep 20 16:02:21 node004 kernel: Buffer I/O error on device dm-6, logical block 117976
>> Sep 20 16:02:21 node004 kernel: lost page write due to I/O error on dm-6
>> Sep 20 16:02:21 node004 kernel: Buffer I/O error on device dm-6, logical block 117977
>> Sep 20 16:02:21 node004 kernel: lost page write due to I/O error on dm-6
>> Sep 20 16:02:21 node004 kernel: Buffer I/O error on device dm-6, logical block 117978
>> Sep 20 16:02:21 node004 kernel: lost page write due to I/O error on dm-6
>> Sep 20 16:02:21 node004 kernel: Buffer I/O error on device dm-6, logical block 117979
>> Sep 20 16:02:21 node004 kernel: lost page write due to I/O error on dm-6
>> Sep 20 16:02:22 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 16:02:22 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 16:02:22 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 16:02:22 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 00 0e 6e b8 00 00 08 00
>> Sep 20 16:02:22 node004 kernel: Buffer I/O error on device dm-6, logical block 117975
>> Sep 20 16:02:22 node004 kernel: lost page write due to I/O error on dm-6
>> Sep 20 16:05:22 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 16:05:22 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 16:05:22 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 16:05:22 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 00 0e 6e e0 00 00 08 00
>> Sep 20 16:05:22 node004 kernel: Buffer I/O error on device dm-6, logical block 117980
>> Sep 20 16:05:22 node004 kernel: lost page write due to I/O error on dm-6
>> Sep 20 16:05:22 node004 kernel: GFS2: fsid=nimble_cluster:gfs_test.3: fatal: I/O error
>> Sep 20 16:05:22 node004 kernel: GFS2: fsid=nimble_cluster:gfs_test.3:   block = 117980
>> Sep 20 16:05:22 node004 kernel: GFS2: fsid=nimble_cluster:gfs_test.3:   function = log_write_header, file = fs/gfs2/log.c, line = 616
>> Sep 20 16:05:22 node004 kernel: GFS2: fsid=nimble_cluster:gfs_test.3: about to withdraw this file system
>> Sep 20 16:05:22 node004 kernel: GFS2: fsid=nimble_cluster:gfs_test.3: telling LM to unmount
>> Sep 20 16:05:22 node004 kernel: GFS2: fsid=nimble_cluster:gfs_test.3: withdrawn
>> Sep 20 16:05:22 node004 kernel: Pid: 9820, comm: glock_workqueue Not tainted 2.6.32-279.el6.x86_64 #1
>> Sep 20 16:05:22 node004 kernel: Call Trace:
>> Sep 20 16:05:22 node004 kernel: [<ffffffffa0962062>] ? gfs2_lm_withdraw+0x102/0x130 [gfs2]
>> Sep 20 16:05:22 node004 kernel: [<ffffffff814fea28>] ? out_of_line_wait_on_bit+0x78/0x90
>> Sep 20 16:05:22 node004 kernel: [<ffffffff81092110>] ? wake_bit_function+0x0/0x50
>> Sep 20 16:05:22 node004 kernel: [<ffffffffa09620d0>] ? gfs2_io_error_bh_i+0x40/0x50 [gfs2]
>> Sep 20 16:05:22 node004 kernel: [<ffffffff811adfb6>] ? __wait_on_buffer+0x26/0x30
>> Sep 20 16:05:22 node004 kernel: [<ffffffffa094a288>] ? log_write_header+0x3a8/0x490 [gfs2]
>> Sep 20 16:05:22 node004 kernel: [<ffffffffa094a951>] ? gfs2_log_flush+0x301/0x6f0 [gfs2]
>> Sep 20 16:05:22 node004 kernel: [<ffffffff810629d3>] ? dequeue_entity+0x113/0x2e0
>> Sep 20 16:05:22 node004 kernel: [<ffffffff810920d0>] ? autoremove_wake_function+0x0/0x40
>> Sep 20 16:05:22 node004 kernel: [<ffffffffa09477d0>] ? inode_go_sync+0x80/0x160 [gfs2]
>> Sep 20 16:05:22 node004 kernel: [<ffffffffa0946336>] ? do_xmote+0x156/0x280 [gfs2]
>> Sep 20 16:05:22 node004 kernel: [<ffffffff814fd830>] ? thread_return+0x4e/0x76e
>> Sep 20 16:05:22 node004 kernel: [<ffffffffa0946551>] ? run_queue+0xf1/0x1d0 [gfs2]
>> Sep 20 16:05:22 node004 kernel: [<ffffffffa0946d2a>] ? glock_work_func+0x7a/0x1b0 [gfs2]
>> Sep 20 16:05:22 node004 kernel: [<ffffffffa0946cb0>] ? glock_work_func+0x0/0x1b0 [gfs2]
>> Sep 20 16:05:22 node004 kernel: [<ffffffff8108c760>] ? worker_thread+0x170/0x2a0
>> Sep 20 16:05:22 node004 kernel: [<ffffffff810920d0>] ? autoremove_wake_function+0x0/0x40
>> Sep 20 16:05:22 node004 kernel: [<ffffffff8108c5f0>] ? worker_thread+0x0/0x2a0
>> Sep 20 16:05:22 node004 kernel: [<ffffffff81091d66>] ? kthread+0x96/0xa0
>> Sep 20 16:05:22 node004 kernel: [<ffffffff8100c14a>] ? child_rip+0xa/0x20
>> Sep 20 16:05:22 node004 kernel: [<ffffffff81091cd0>] ? kthread+0x0/0xa0
>> Sep 20 16:05:22 node004 kernel: [<ffffffff8100c140>] ? child_rip+0x0/0x20
>> Sep 20 16:08:22 node004 kernel: sd 3:0:0:0: timing out command, waited 180s
>> Sep 20 16:08:22 node004 kernel: sd 3:0:0:0: [sdi] Unhandled error code
>> Sep 20 16:08:22 node004 kernel: sd 3:0:0:0: [sdi] Result: hostbyte=DID_OK driverbyte=DRIVER_OK
>> Sep 20 16:08:22 node004 kernel: sd 3:0:0:0: [sdi] CDB: Write(10): 2a 00 00 00 08 b0 00 00 08 00
>> Sep 20 16:08:22 node004 kernel: Buffer I/O error on device dm-6, logical block 22
>> Sep 20 16:08:22 node004 kernel: lost page write due to I/O error on dm-6
>> Sep 20 16:16:05 node004 xinetd[4416]: START: node-state pid=14578 from=::ffff:10.141.255.254
>> Sep 20 16:16:05 node004 xinetd[4416]: EXIT: node-state status=0 pid=14578 duration=0(sec)
>> Sep 20 16:17:34 node004 xinetd[4416]: START: node-state pid=14653 from=::ffff:10.141.255.254
>> Sep 20 16:17:34 node004 xinetd[4416]: EXIT: node-state status=0 pid=14653 duration=0(sec)
>> Sep 20 16:17:36 node004 xinetd[4416]: START: node-state pid=14671 from=::ffff:10.141.255.254
>> Sep 20 16:17:36 node004 xinetd[4416]: EXIT: node-state status=0 pid=14671 duration=0(sec)
>> Sep 20 16:17:39 node004 xinetd[4416]: START: node-state pid=14690 from=::ffff:10.141.255.254
>> Sep 20 16:17:39 node004 xinetd[4416]: EXIT: node-state status=0 pid=14690 duration=0(sec)
>> Sep 20 16:17:41 node004 xinetd[4416]: START: node-state pid=14708 from=::ffff:10.141.255.254
>> Sep 20 16:17:41 node004 xinetd[4416]: EXIT: node-state status=0 pid=14708 duration=0(sec)
>> On Sep 20, 2012, at 4:14 PM, Andrew Holway wrote:
>> 
>>> Aslo,
>>> 
>>> IOzone gave this error: Error writing block 29813, fd= 3
>>> 
>>> GFS2: fsid=nimble_cluster:gfs_test.0: jid=3: Trying to acquire journal lock...
>>> GFS2: fsid=nimble_cluster:gfs_test.0: jid=3: Looking at journal...
>>> GFS2: fsid=nimble_cluster:gfs_test.0: jid=3: Acquiring the transaction lock...
>>> GFS2: fsid=nimble_cluster:gfs_test.0: jid=3: Replaying journal...
>>> 
>>> 
>>> GFS seemed to repair itself and things carried on working.
>>> 
>>> thanks,
>>> 
>>> Andrew
>>> 
>>> On Sep 20, 2012, at 4:08 PM, Andrew Holway wrote:
>>> 
>>>> Hello,
>>>> 
>>>> I have set up a 4 node cluster. They are interconnected with an IPoIB (connected mode)
>>>> 
>>>> Whist running a benchmark with IOzone I got the following errors:
>>>> 
>>>> IO seems to have halted.
>>>> 
>>>> Thanks,
>>>> 
>>>> Andrew
>>>> 
>>>> Sep 20 16:01:57 node001 kernel: INFO: task iozone:15816 blocked for more than 120 seconds.
>>>> Sep 20 16:01:57 node001 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>>>> Sep 20 16:01:57 node001 kernel: iozone        D 0000000000000011     0 15816  15374 0x00000080
>>>> Sep 20 16:01:57 node001 kernel: ffff880fd5ebbac8 0000000000000086 ffff880fd5ebba38 ffffffff81276b66
>>>> Sep 20 16:01:57 node001 kernel: 0000000000000096 ffff881ff95588d8 ffff880fd5ebba58 ffffffff81091f97
>>>> Sep 20 16:01:57 node001 kernel: ffff880fe238c638 ffff880fd5ebbfd8 000000000000fb88 ffff880fe238c638
>>>> Sep 20 16:01:57 node001 kernel: Call Trace:
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81276b66>] ? __prop_inc_single+0x46/0x60
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81091f97>] ? bit_waitqueue+0x17/0xd0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa094357e>] gfs2_glock_holder_wait+0xe/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fe97f>] __wait_on_bit+0x5f/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fea28>] out_of_line_wait_on_bit+0x78/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81092110>] ? wake_bit_function+0x0/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff810538b6>] ? enqueue_task+0x66/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09454f5>] gfs2_glock_wait+0x45/0x90 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09468f7>] gfs2_glock_nq+0x237/0x3d0 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540ec>] gfs2_permission+0xec/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540e4>] ? gfs2_permission+0xe4/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118982d>] __link_path_walk+0xad/0x1030
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118aa3a>] path_walk+0x6a/0xe0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118ac0b>] do_path_lookup+0x5b/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118b877>] user_path_at+0x57/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff811804ac>] vfs_fstatat+0x3c/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118061b>] vfs_stat+0x1b/0x20
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81180644>] sys_newstat+0x24/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8150326e>] ? do_page_fault+0x3e/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
>>>> Sep 20 16:01:57 node001 kernel: INFO: task iozone:15818 blocked for more than 120 seconds.
>>>> Sep 20 16:01:57 node001 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>>>> Sep 20 16:01:57 node001 kernel: iozone        D 0000000000000011     0 15818  15374 0x00000080
>>>> Sep 20 16:01:57 node001 kernel: ffff880fbe5b3ac8 0000000000000082 0000000000000000 ffff881ff95587a0
>>>> Sep 20 16:01:57 node001 kernel: ffff881000000002 ffff88100ee13048 00000000be5b3a58 00000040ffffffff
>>>> Sep 20 16:01:57 node001 kernel: ffff88100eed1ab8 ffff880fbe5b3fd8 000000000000fb88 ffff88100eed1ab8
>>>> Sep 20 16:01:57 node001 kernel: Call Trace:
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa094357e>] gfs2_glock_holder_wait+0xe/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fe97f>] __wait_on_bit+0x5f/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fea28>] out_of_line_wait_on_bit+0x78/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81092110>] ? wake_bit_function+0x0/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09454f5>] gfs2_glock_wait+0x45/0x90 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09468f7>] gfs2_glock_nq+0x237/0x3d0 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540ec>] gfs2_permission+0xec/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540e4>] ? gfs2_permission+0xe4/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118982d>] __link_path_walk+0xad/0x1030
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118aa3a>] path_walk+0x6a/0xe0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118ac0b>] do_path_lookup+0x5b/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118b877>] user_path_at+0x57/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff811804ac>] vfs_fstatat+0x3c/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118061b>] vfs_stat+0x1b/0x20
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81180644>] sys_newstat+0x24/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8150326e>] ? do_page_fault+0x3e/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
>>>> Sep 20 16:01:57 node001 kernel: INFO: task iozone:15820 blocked for more than 120 seconds.
>>>> Sep 20 16:01:57 node001 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>>>> Sep 20 16:01:57 node001 kernel: iozone        D 0000000000000008     0 15820  15374 0x00000080
>>>> Sep 20 16:01:57 node001 kernel: ffff880ffed7bac8 0000000000000086 0000000000000000 ffffffff81276b66
>>>> Sep 20 16:01:57 node001 kernel: 0000000000000002 ffff881ff95588d8 00000000fed7ba58 00000040ffffffff
>>>> Sep 20 16:01:57 node001 kernel: ffff880fbdd51ab8 ffff880ffed7bfd8 000000000000fb88 ffff880fbdd51ab8
>>>> Sep 20 16:01:57 node001 kernel: Call Trace:
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81276b66>] ? __prop_inc_single+0x46/0x60
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa094357e>] gfs2_glock_holder_wait+0xe/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fe97f>] __wait_on_bit+0x5f/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fea28>] out_of_line_wait_on_bit+0x78/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81092110>] ? wake_bit_function+0x0/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff810538b6>] ? enqueue_task+0x66/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09454f5>] gfs2_glock_wait+0x45/0x90 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09468f7>] gfs2_glock_nq+0x237/0x3d0 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540ec>] gfs2_permission+0xec/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540e4>] ? gfs2_permission+0xe4/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118982d>] __link_path_walk+0xad/0x1030
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118aa3a>] path_walk+0x6a/0xe0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118ac0b>] do_path_lookup+0x5b/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118b877>] user_path_at+0x57/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff811804ac>] vfs_fstatat+0x3c/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118061b>] vfs_stat+0x1b/0x20
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81180644>] sys_newstat+0x24/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8150326e>] ? do_page_fault+0x3e/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
>>>> Sep 20 16:01:57 node001 kernel: INFO: task iozone:15822 blocked for more than 120 seconds.
>>>> Sep 20 16:01:57 node001 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>>>> Sep 20 16:01:57 node001 kernel: iozone        D 0000000000000011     0 15822  15374 0x00000080
>>>> Sep 20 16:01:57 node001 kernel: ffff880fd5dddac8 0000000000000086 0000000000000000 ffffffff81276b66
>>>> Sep 20 16:01:57 node001 kernel: 0000000000000096 ffff881ff95588d8 ffff880fd5ddda58 ffffffff81091f97
>>>> Sep 20 16:01:57 node001 kernel: ffff880fe238d098 ffff880fd5dddfd8 000000000000fb88 ffff880fe238d098
>>>> Sep 20 16:01:57 node001 kernel: Call Trace:
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81276b66>] ? __prop_inc_single+0x46/0x60
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81091f97>] ? bit_waitqueue+0x17/0xd0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa094357e>] gfs2_glock_holder_wait+0xe/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fe97f>] __wait_on_bit+0x5f/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fea28>] out_of_line_wait_on_bit+0x78/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81092110>] ? wake_bit_function+0x0/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff810538b6>] ? enqueue_task+0x66/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09454f5>] gfs2_glock_wait+0x45/0x90 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09468f7>] gfs2_glock_nq+0x237/0x3d0 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540ec>] gfs2_permission+0xec/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540e4>] ? gfs2_permission+0xe4/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118982d>] __link_path_walk+0xad/0x1030
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118aa3a>] path_walk+0x6a/0xe0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118ac0b>] do_path_lookup+0x5b/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118b877>] user_path_at+0x57/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff811804ac>] vfs_fstatat+0x3c/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118061b>] vfs_stat+0x1b/0x20
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81180644>] sys_newstat+0x24/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8150326e>] ? do_page_fault+0x3e/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
>>>> Sep 20 16:01:57 node001 kernel: INFO: task iozone:15824 blocked for more than 120 seconds.
>>>> Sep 20 16:01:57 node001 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>>>> Sep 20 16:01:57 node001 kernel: iozone        D 0000000000000011     0 15824  15374 0x00000080
>>>> Sep 20 16:01:57 node001 kernel: ffff880fbe5edac8 0000000000000086 0000000000000000 ffffffff81276b66
>>>> Sep 20 16:01:57 node001 kernel: 0000000000000002 ffff881ff95588d8 00000000be5eda58 00000040ffffffff
>>>> Sep 20 16:01:57 node001 kernel: ffff880ff69085f8 ffff880fbe5edfd8 000000000000fb88 ffff880ff69085f8
>>>> Sep 20 16:01:57 node001 kernel: Call Trace:
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81276b66>] ? __prop_inc_single+0x46/0x60
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa094357e>] gfs2_glock_holder_wait+0xe/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fe97f>] __wait_on_bit+0x5f/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fea28>] out_of_line_wait_on_bit+0x78/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81092110>] ? wake_bit_function+0x0/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff810538b6>] ? enqueue_task+0x66/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09454f5>] gfs2_glock_wait+0x45/0x90 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09468f7>] gfs2_glock_nq+0x237/0x3d0 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540ec>] gfs2_permission+0xec/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540e4>] ? gfs2_permission+0xe4/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118982d>] __link_path_walk+0xad/0x1030
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118aa3a>] path_walk+0x6a/0xe0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118ac0b>] do_path_lookup+0x5b/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118b877>] user_path_at+0x57/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff811804ac>] vfs_fstatat+0x3c/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118061b>] vfs_stat+0x1b/0x20
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81180644>] sys_newstat+0x24/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8150326e>] ? do_page_fault+0x3e/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
>>>> Sep 20 16:01:57 node001 kernel: INFO: task iozone:15826 blocked for more than 120 seconds.
>>>> Sep 20 16:01:57 node001 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>>>> Sep 20 16:01:57 node001 kernel: iozone        D 0000000000000011     0 15826  15374 0x00000080
>>>> Sep 20 16:01:57 node001 kernel: ffff880fbe7cfac8 0000000000000086 0000000000000000 ffffffff81276b66
>>>> Sep 20 16:01:57 node001 kernel: 0000000000000096 ffff881ff95588d8 ffff880fbe7cfa58 ffffffff81091f97
>>>> Sep 20 16:01:57 node001 kernel: ffff88100ddcbab8 ffff880fbe7cffd8 000000000000fb88 ffff88100ddcbab8
>>>> Sep 20 16:01:57 node001 kernel: Call Trace:
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81276b66>] ? __prop_inc_single+0x46/0x60
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81091f97>] ? bit_waitqueue+0x17/0xd0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa094357e>] gfs2_glock_holder_wait+0xe/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fe97f>] __wait_on_bit+0x5f/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fea28>] out_of_line_wait_on_bit+0x78/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81092110>] ? wake_bit_function+0x0/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff810538b6>] ? enqueue_task+0x66/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09454f5>] gfs2_glock_wait+0x45/0x90 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09468f7>] gfs2_glock_nq+0x237/0x3d0 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540ec>] gfs2_permission+0xec/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540e4>] ? gfs2_permission+0xe4/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118982d>] __link_path_walk+0xad/0x1030
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118aa3a>] path_walk+0x6a/0xe0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118ac0b>] do_path_lookup+0x5b/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118b877>] user_path_at+0x57/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff811804ac>] vfs_fstatat+0x3c/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118061b>] vfs_stat+0x1b/0x20
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81180644>] sys_newstat+0x24/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8150326e>] ? do_page_fault+0x3e/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
>>>> Sep 20 16:01:57 node001 kernel: INFO: task iozone:15828 blocked for more than 120 seconds.
>>>> Sep 20 16:01:57 node001 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>>>> Sep 20 16:01:57 node001 kernel: iozone        D 0000000000000011     0 15828  15374 0x00000080
>>>> Sep 20 16:01:57 node001 kernel: ffff88100684bac8 0000000000000086 0000000000000000 ffffffff81276b66
>>>> Sep 20 16:01:57 node001 kernel: 0000000000000002 ffff881ff95588d8 000000000684ba58 00000040ffffffff
>>>> Sep 20 16:01:57 node001 kernel: ffff88100edc7af8 ffff88100684bfd8 000000000000fb88 ffff88100edc7af8
>>>> Sep 20 16:01:57 node001 kernel: Call Trace:
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81276b66>] ? __prop_inc_single+0x46/0x60
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa094357e>] gfs2_glock_holder_wait+0xe/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fe97f>] __wait_on_bit+0x5f/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fea28>] out_of_line_wait_on_bit+0x78/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81092110>] ? wake_bit_function+0x0/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff810538b6>] ? enqueue_task+0x66/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09454f5>] gfs2_glock_wait+0x45/0x90 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09468f7>] gfs2_glock_nq+0x237/0x3d0 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540ec>] gfs2_permission+0xec/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540e4>] ? gfs2_permission+0xe4/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118982d>] __link_path_walk+0xad/0x1030
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118aa3a>] path_walk+0x6a/0xe0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118ac0b>] do_path_lookup+0x5b/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118b877>] user_path_at+0x57/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff811804ac>] vfs_fstatat+0x3c/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118061b>] vfs_stat+0x1b/0x20
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81180644>] sys_newstat+0x24/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8150326e>] ? do_page_fault+0x3e/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
>>>> Sep 20 16:01:57 node001 kernel: INFO: task iozone:15830 blocked for more than 120 seconds.
>>>> Sep 20 16:01:57 node001 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
>>>> Sep 20 16:01:57 node001 kernel: iozone        D 0000000000000000     0 15830  15374 0x00000080
>>>> Sep 20 16:01:57 node001 kernel: ffff880fbdd0fac8 0000000000000082 0000000000000000 ffffffff81276b66
>>>> Sep 20 16:01:57 node001 kernel: 0000000000000002 ffff881ff95588d8 00000000bdd0fa58 00000040ffffffff
>>>> Sep 20 16:01:57 node001 kernel: ffff88100de93098 ffff880fbdd0ffd8 000000000000fb88 ffff88100de93098
>>>> Sep 20 16:01:57 node001 kernel: Call Trace:
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81276b66>] ? __prop_inc_single+0x46/0x60
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa094357e>] gfs2_glock_holder_wait+0xe/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fe97f>] __wait_on_bit+0x5f/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa0943570>] ? gfs2_glock_holder_wait+0x0/0x20 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff814fea28>] out_of_line_wait_on_bit+0x78/0x90
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81092110>] ? wake_bit_function+0x0/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff810538b6>] ? enqueue_task+0x66/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09454f5>] gfs2_glock_wait+0x45/0x90 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09468f7>] gfs2_glock_nq+0x237/0x3d0 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540ec>] gfs2_permission+0xec/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffffa09540e4>] ? gfs2_permission+0xe4/0x100 [gfs2]
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118982d>] __link_path_walk+0xad/0x1030
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118aa3a>] path_walk+0x6a/0xe0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118ac0b>] do_path_lookup+0x5b/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118b877>] user_path_at+0x57/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff811804ac>] vfs_fstatat+0x3c/0x80
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8118061b>] vfs_stat+0x1b/0x20
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff81180644>] sys_newstat+0x24/0x50
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8150326e>] ? do_page_fault+0x3e/0xa0
>>>> Sep 20 16:01:57 node001 kernel: [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
>>>> 
>>>> 
>>> 
>> 
>> 
>> 
> 
> 



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