Hello all,
I'm facing an issue where it appears that only one RAID disk (on a
RAID10) is failing, but the whole RAID becomes unusable - when issuing a
cat /proc/mdstat, the system hangs. We actually had to recover by
restarting the system - then the failed disk was listed as removed in
output of "mdadm --detail /dev/md126". But the RAID should have still be
usable with only one disk failing - does anyone know what I should do to
work around this issue?
Some preliminary info:
RAID10 was built using Intel matrix storage manager metadata format,
using the commands:
1. "sudo mdadm -A /dev/md0 /dev/sd[b-g]" - in order to assemble the IMSM
container of the /dev/sd[b-g] devices.
2. "sudo mdadm -I /dev/md0" - in order to put the RAID member disks into
the container.
-Using mdadm 3.1.4 with kernel 2.6.32-5-amd64.
I've looked through the output of kern.log, and the following is what I
have interpreted:
1. It appears that there is some unhandled error that occurs with one of
the RAID member disks - /dev/sdc. ("I/O error, dev sdc, sector
1053765632")
Jul 8 14:57:19 ecs-1u kernel: [ 8753.699973] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:57:19 ecs-1u kernel: [ 8753.699975] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:57:19 ecs-1u kernel: [ 8753.699977] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 30 00 00 03 68 00
Jul 8 14:57:19 ecs-1u kernel: [ 8753.699982] end_request: I/O error,
dev sdc, sector 1053765632
2. md starts a recovery for the RAID array. The RAID10 conf printout
looks like the following:
Jul 8 14:57:23 ecs-1u kernel: [ 8758.163655] md: recovery of RAID array
md126
Jul 8 14:57:23 ecs-1u kernel: [ 8758.163660] md: minimum _guaranteed_
speed: 1000 KB/sec/disk.
Jul 8 14:57:23 ecs-1u kernel: [ 8758.163662] md: using maximum
available idle IO bandwidth (but not more than 200000 KB/sec) for
recovery.
Jul 8 14:57:23 ecs-1u kernel: [ 8758.163672] md: using 128k window,
over a total of 732572288 blocks.
Jul 8 14:57:23 ecs-1u kernel: [ 8758.163675] md: resuming recovery of
md126 from checkpoint.
Jul 8 14:57:23 ecs-1u kernel: [ 8758.163677] md: md126: recovery done.
Jul 8 14:57:23 ecs-1u kernel: [ 8758.296414] RAID10 conf printout:
Jul 8 14:57:23 ecs-1u kernel: [ 8758.296416] --- wd:3 rd:4
Jul 8 14:57:23 ecs-1u kernel: [ 8758.296417] disk 0, wo:0, o:1,
dev:sdb
Jul 8 14:57:23 ecs-1u kernel: [ 8758.296419] disk 1, wo:1, o:0,
dev:sdc
Jul 8 14:57:23 ecs-1u kernel: [ 8758.296420] disk 2, wo:0, o:1,
dev:sdd
Jul 8 14:57:23 ecs-1u kernel: [ 8758.296421] disk 3, wo:0, o:1,
dev:sde
3. But then another unhandled error occurs, and it looks like something
is causing the md126_raid10 task to block.
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088705] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088710] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088714] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 63 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088723] end_request: I/O error,
dev sdc, sector 1053778688
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088775] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088776] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088778] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 67 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088781] end_request: I/O error,
dev sdc, sector 1053779712
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088817] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088818] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088820] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 6b 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088823] end_request: I/O error,
dev sdc, sector 1053780736
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088859] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088860] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088862] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 6f 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088865] end_request: I/O error,
dev sdc, sector 1053781760
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088909] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088910] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088912] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 73 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.088916] end_request: I/O error,
dev sdc, sector 1053782784
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089014] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089015] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089017] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 77 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089020] end_request: I/O error,
dev sdc, sector 1053783808
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089121] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089122] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089124] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 7b 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089127] end_request: I/O error,
dev sdc, sector 1053784832
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089236] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089237] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089239] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 7f 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089243] end_request: I/O error,
dev sdc, sector 1053785856
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089344] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089345] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089347] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 83 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089351] end_request: I/O error,
dev sdc, sector 1053786880
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089441] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089443] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089444] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 87 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089448] end_request: I/O error,
dev sdc, sector 1053787904
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089536] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089537] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089538] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 8b 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089542] end_request: I/O error,
dev sdc, sector 1053788928
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089631] sd 2:0:0:0: [sdc]
Unhandled error code
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089632] sd 2:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089634] sd 2:0:0:0: [sdc] CDB:
Write(10): 2a 00 3e cf 8f 00 00 04 00 00
Jul 8 14:58:17 ecs-1u kernel: [ 8812.089637] end_request: I/O error,
dev sdc, sector 1053789952
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041839] INFO: task kthreadd:2
blocked for more than 120 seconds.
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041867] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041905] kthreadd D
0000000000000000 0 2 0 0x00000000
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041908] ffff8801bf13aa60
0000000000000046 0000000000000000 ffff8801bf11d000
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041911] 0000000000000400
0000000000003737 000000000000f9e0 ffff8801bf067fd8
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041913] 0000000000015780
0000000000015780 ffff88033f028710 ffff88033f028a08
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041915] Call Trace:
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041925] [<ffffffff810b41ed>] ?
sync_page+0x0/0x46
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041929] [<ffffffff812fb0d2>] ?
io_schedule+0x73/0xb7
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041931] [<ffffffff810b422e>] ?
sync_page+0x41/0x46
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041933] [<ffffffff812fb5df>] ?
__wait_on_bit+0x41/0x70
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041935] [<ffffffff810b43b2>] ?
wait_on_page_bit+0x6b/0x71
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041938] [<ffffffff81064f38>] ?
wake_bit_function+0x0/0x23
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041943] [<ffffffff810be14a>] ?
shrink_page_list+0x14e/0x623
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041948] [<ffffffff8105a8e1>] ?
del_timer_sync+0xc/0x16
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041953] [<ffffffff8101657d>] ?
read_tsc+0xa/0x20
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041955] [<ffffffff812fb434>] ?
schedule_timeout+0xad/0xdd
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041958] [<ffffffff8106c477>] ?
ktime_get_ts+0x68/0xb2
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041961] [<ffffffff81099d36>] ?
delayacct_end+0x74/0x7f
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041963] [<ffffffff810bd53b>] ?
isolate_pages_global+0x1a0/0x20f
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041965] [<ffffffff81065009>] ?
finish_wait+0x35/0x60
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041967] [<ffffffff81064f0a>] ?
autoremove_wake_function+0x0/0x2e
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041969] [<ffffffff810bee20>] ?
shrink_list+0x528/0x767
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041971] [<ffffffff810bf2df>] ?
shrink_zone+0x280/0x342
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041975] [<ffffffff810c76e8>] ?
zone_statistics+0x3c/0x5d
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041977] [<ffffffff810b8593>] ?
zone_watermark_ok+0x20/0xb1
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041979] [<ffffffff810bf76a>] ?
zone_reclaim+0x276/0x357
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041981] [<ffffffff810bd39b>] ?
isolate_pages_global+0x0/0x20f
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041983] [<ffffffff810b8593>] ?
zone_watermark_ok+0x20/0xb1
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041985] [<ffffffff810b98bc>] ?
get_page_from_freelist+0x1ff/0x760
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041987] [<ffffffff810ba184>] ?
__alloc_pages_nodemask+0x11c/0x5f4
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041994] [<ffffffff8118e316>] ?
cpumask_next_and+0x2a/0x3a
Jul 8 15:01:22 ecs-1u kernel: [ 8997.041998] [<ffffffff810453c3>] ?
find_busiest_group+0x9ae/0xa1e
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042001] [<ffffffff81062afe>] ?
alloc_pid+0x26e/0x390
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042003] [<ffffffff810b95c0>] ?
__get_free_pages+0x9/0x46
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042005] [<ffffffff8104c506>] ?
copy_process+0xd7/0x115f
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042007] [<ffffffff8104d6e5>] ?
do_fork+0x157/0x31e
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042009] [<ffffffff81048261>] ?
finish_task_switch+0x3a/0xaf
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042012] [<ffffffff81011b42>] ?
kernel_thread+0x82/0xe0
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042014] [<ffffffff81064bc4>] ?
kthread+0x0/0x81
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042015] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042017] [<ffffffff81064b89>] ?
kthreadd+0xb1/0xec
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042021] [<ffffffff814f5140>] ?
early_idt_handler+0x0/0x71
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042022] [<ffffffff81011baa>] ?
child_rip+0xa/0x20
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042024] [<ffffffff814f5140>] ?
early_idt_handler+0x0/0x71
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042028] [<ffffffff810e01b1>] ?
do_set_mempolicy+0x128/0x13a
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042029] [<ffffffff81064ad8>] ?
kthreadd+0x0/0xec
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042031] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042076] INFO: task
md126_raid10:3493 blocked for more than 120 seconds.
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042101] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042138] md126_raid10 D
0000000000000000 0 3493 2 0x00000000
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042140] ffff88033f02b880
0000000000000046 0000000000000000 0000000a00000006
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042143] 0000006cffffffff
ffff880006e0fa98 000000000000f9e0 ffff88033df07fd8
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042145] 0000000000015780
0000000000015780 ffff88033e79aa60 ffff88033e79ad58
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042147] Call Trace:
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042150] [<ffffffff811951d6>] ?
sprintf+0x51/0x59
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042152] [<ffffffff810414f5>] ?
select_task_rq_fair+0x472/0x836
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042154] [<ffffffff812fb3b5>] ?
schedule_timeout+0x2e/0xdd
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042156] [<ffffffff812fb26c>] ?
wait_for_common+0xde/0x15b
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042158] [<ffffffff8104a440>] ?
default_wake_function+0x0/0x9
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042163] [<ffffffff81064d7a>] ?
kthread_create+0x93/0x121
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042167] [<ffffffffa0168764>] ?
md_thread+0x0/0x10f [md_mod]
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042172] [<ffffffff810e7fb9>] ?
__kmalloc+0x12f/0x141
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042175] [<ffffffffa01686ba>] ?
md_register_thread+0x22/0xcc [md_mod]
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042178] [<ffffffffa0167510>] ?
md_do_sync+0x0/0xaf6 [md_mod]
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042181] [<ffffffffa016872e>] ?
md_register_thread+0x96/0xcc [md_mod]
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042184] [<ffffffffa016aee2>] ?
md_check_recovery+0x3fd/0x4b9 [md_mod]
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042187] [<ffffffffa018116c>] ?
flush_pending_writes+0x13/0x8a [raid10]
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042190] [<ffffffffa0181397>] ?
raid10d+0x42/0xade [raid10]
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042191] [<ffffffff812faff8>] ?
thread_return+0x79/0xe0
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042194] [<ffffffff8101166e>] ?
apic_timer_interrupt+0xe/0x20
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042196] [<ffffffff812fb055>] ?
thread_return+0xd6/0xe0
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042197] [<ffffffff812fb3b5>] ?
schedule_timeout+0x2e/0xdd
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042200] [<ffffffffa0168855>] ?
md_thread+0xf1/0x10f [md_mod]
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042202] [<ffffffff81064f0a>] ?
autoremove_wake_function+0x0/0x2e
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042205] [<ffffffffa0168764>] ?
md_thread+0x0/0x10f [md_mod]
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042206] [<ffffffff81064c3d>] ?
kthread+0x79/0x81
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042208] [<ffffffff81011baa>] ?
child_rip+0xa/0x20
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042210] [<ffffffff81064bc4>] ?
kthread+0x0/0x81
Jul 8 15:01:22 ecs-1u kernel: [ 8997.042211] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963652] INFO: task kthreadd:2
blocked for more than 120 seconds.
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963680] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963718] kthreadd D
0000000000000000 0 2 0 0x00000000
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963721] ffff8801bf13aa60
0000000000000046 0000000000000000 ffff8801bf11d000
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963723] 0000000000000400
0000000000003737 000000000000f9e0 ffff8801bf067fd8
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963726] 0000000000015780
0000000000015780 ffff88033f028710 ffff88033f028a08
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963728] Call Trace:
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963737] [<ffffffff810b41ed>] ?
sync_page+0x0/0x46
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963742] [<ffffffff812fb0d2>] ?
io_schedule+0x73/0xb7
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963744] [<ffffffff810b422e>] ?
sync_page+0x41/0x46
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963746] [<ffffffff812fb5df>] ?
__wait_on_bit+0x41/0x70
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963748] [<ffffffff810b43b2>] ?
wait_on_page_bit+0x6b/0x71
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963752] [<ffffffff81064f38>] ?
wake_bit_function+0x0/0x23
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963755] [<ffffffff810be14a>] ?
shrink_page_list+0x14e/0x623
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963760] [<ffffffff8105a8e1>] ?
del_timer_sync+0xc/0x16
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963765] [<ffffffff8101657d>] ?
read_tsc+0xa/0x20
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963766] [<ffffffff812fb434>] ?
schedule_timeout+0xad/0xdd
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963769] [<ffffffff8106c477>] ?
ktime_get_ts+0x68/0xb2
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963772] [<ffffffff81099d36>] ?
delayacct_end+0x74/0x7f
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963774] [<ffffffff810bd53b>] ?
isolate_pages_global+0x1a0/0x20f
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963776] [<ffffffff81065009>] ?
finish_wait+0x35/0x60
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963778] [<ffffffff81064f0a>] ?
autoremove_wake_function+0x0/0x2e
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963780] [<ffffffff810bee20>] ?
shrink_list+0x528/0x767
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963783] [<ffffffff810bf2df>] ?
shrink_zone+0x280/0x342
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963786] [<ffffffff810c76e8>] ?
zone_statistics+0x3c/0x5d
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963788] [<ffffffff810b8593>] ?
zone_watermark_ok+0x20/0xb1
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963790] [<ffffffff810bf76a>] ?
zone_reclaim+0x276/0x357
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963792] [<ffffffff810bd39b>] ?
isolate_pages_global+0x0/0x20f
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963794] [<ffffffff810b8593>] ?
zone_watermark_ok+0x20/0xb1
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963796] [<ffffffff810b98bc>] ?
get_page_from_freelist+0x1ff/0x760
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963798] [<ffffffff810ba184>] ?
__alloc_pages_nodemask+0x11c/0x5f4
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963804] [<ffffffff8118e316>] ?
cpumask_next_and+0x2a/0x3a
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963808] [<ffffffff810453c3>] ?
find_busiest_group+0x9ae/0xa1e
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963812] [<ffffffff81062afe>] ?
alloc_pid+0x26e/0x390
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963813] [<ffffffff810b95c0>] ?
__get_free_pages+0x9/0x46
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963816] [<ffffffff8104c506>] ?
copy_process+0xd7/0x115f
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963818] [<ffffffff8104d6e5>] ?
do_fork+0x157/0x31e
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963820] [<ffffffff81048261>] ?
finish_task_switch+0x3a/0xaf
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963822] [<ffffffff81011b42>] ?
kernel_thread+0x82/0xe0
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963824] [<ffffffff81064bc4>] ?
kthread+0x0/0x81
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963825] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963827] [<ffffffff81064b89>] ?
kthreadd+0xb1/0xec
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963831] [<ffffffff814f5140>] ?
early_idt_handler+0x0/0x71
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963833] [<ffffffff81011baa>] ?
child_rip+0xa/0x20
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963835] [<ffffffff814f5140>] ?
early_idt_handler+0x0/0x71
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963838] [<ffffffff810e01b1>] ?
do_set_mempolicy+0x128/0x13a
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963840] [<ffffffff81064ad8>] ?
kthreadd+0x0/0xec
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963842] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963886] INFO: task
md126_raid10:3493 blocked for more than 120 seconds.
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963911] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963949] md126_raid10 D
0000000000000000 0 3493 2 0x00000000
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963951] ffff88033f02b880
0000000000000046 0000000000000000 0000000a00000006
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963953] 0000006cffffffff
ffff880006e0fa98 000000000000f9e0 ffff88033df07fd8
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963955] 0000000000015780
0000000000015780 ffff88033e79aa60 ffff88033e79ad58
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963957] Call Trace:
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963961] [<ffffffff811951d6>] ?
sprintf+0x51/0x59
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963963] [<ffffffff810414f5>] ?
select_task_rq_fair+0x472/0x836
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963965] [<ffffffff812fb3b5>] ?
schedule_timeout+0x2e/0xdd
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963967] [<ffffffff812fb26c>] ?
wait_for_common+0xde/0x15b
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963969] [<ffffffff8104a440>] ?
default_wake_function+0x0/0x9
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963973] [<ffffffff81064d7a>] ?
kthread_create+0x93/0x121
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963977] [<ffffffffa0168764>] ?
md_thread+0x0/0x10f [md_mod]
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963982] [<ffffffff810e7fb9>] ?
__kmalloc+0x12f/0x141
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963985] [<ffffffffa01686ba>] ?
md_register_thread+0x22/0xcc [md_mod]
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963988] [<ffffffffa0167510>] ?
md_do_sync+0x0/0xaf6 [md_mod]
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963991] [<ffffffffa016872e>] ?
md_register_thread+0x96/0xcc [md_mod]
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963994] [<ffffffffa016aee2>] ?
md_check_recovery+0x3fd/0x4b9 [md_mod]
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963997] [<ffffffffa018116c>] ?
flush_pending_writes+0x13/0x8a [raid10]
Jul 8 15:03:22 ecs-1u kernel: [ 9116.963999] [<ffffffffa0181397>] ?
raid10d+0x42/0xade [raid10]
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964001] [<ffffffff812faff8>] ?
thread_return+0x79/0xe0
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964003] [<ffffffff8101166e>] ?
apic_timer_interrupt+0xe/0x20
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964005] [<ffffffff812fb055>] ?
thread_return+0xd6/0xe0
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964007] [<ffffffff812fb3b5>] ?
schedule_timeout+0x2e/0xdd
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964010] [<ffffffffa0168855>] ?
md_thread+0xf1/0x10f [md_mod]
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964012] [<ffffffff81064f0a>] ?
autoremove_wake_function+0x0/0x2e
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964014] [<ffffffffa0168764>] ?
md_thread+0x0/0x10f [md_mod]
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964016] [<ffffffff81064c3d>] ?
kthread+0x79/0x81
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964018] [<ffffffff81011baa>] ?
child_rip+0xa/0x20
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964019] [<ffffffff81064bc4>] ?
kthread+0x0/0x81
Jul 8 15:03:22 ecs-1u kernel: [ 9116.964021] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885452] INFO: task kthreadd:2
blocked for more than 120 seconds.
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885477] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885515] kthreadd D
0000000000000000 0 2 0 0x00000000
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885517] ffff8801bf13aa60
0000000000000046 0000000000000000 ffff8801bf11d000
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885519] 0000000000000400
0000000000003737 000000000000f9e0 ffff8801bf067fd8
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885521] 0000000000015780
0000000000015780 ffff88033f028710 ffff88033f028a08
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885523] Call Trace:
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885527] [<ffffffff810b41ed>] ?
sync_page+0x0/0x46
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885529] [<ffffffff812fb0d2>] ?
io_schedule+0x73/0xb7
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885531] [<ffffffff810b422e>] ?
sync_page+0x41/0x46
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885533] [<ffffffff812fb5df>] ?
__wait_on_bit+0x41/0x70
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885535] [<ffffffff810b43b2>] ?
wait_on_page_bit+0x6b/0x71
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885537] [<ffffffff81064f38>] ?
wake_bit_function+0x0/0x23
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885539] [<ffffffff810be14a>] ?
shrink_page_list+0x14e/0x623
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885542] [<ffffffff8105a8e1>] ?
del_timer_sync+0xc/0x16
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885544] [<ffffffff8101657d>] ?
read_tsc+0xa/0x20
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885545] [<ffffffff812fb434>] ?
schedule_timeout+0xad/0xdd
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885547] [<ffffffff8106c477>] ?
ktime_get_ts+0x68/0xb2
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885549] [<ffffffff81099d36>] ?
delayacct_end+0x74/0x7f
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885551] [<ffffffff810bd53b>] ?
isolate_pages_global+0x1a0/0x20f
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885553] [<ffffffff81065009>] ?
finish_wait+0x35/0x60
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885554] [<ffffffff81064f0a>] ?
autoremove_wake_function+0x0/0x2e
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885556] [<ffffffff810bee20>] ?
shrink_list+0x528/0x767
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885559] [<ffffffff810bf2df>] ?
shrink_zone+0x280/0x342
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885561] [<ffffffff810c76e8>] ?
zone_statistics+0x3c/0x5d
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885563] [<ffffffff810b8593>] ?
zone_watermark_ok+0x20/0xb1
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885565] [<ffffffff810bf76a>] ?
zone_reclaim+0x276/0x357
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885567] [<ffffffff810bd39b>] ?
isolate_pages_global+0x0/0x20f
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885568] [<ffffffff810b8593>] ?
zone_watermark_ok+0x20/0xb1
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885570] [<ffffffff810b98bc>] ?
get_page_from_freelist+0x1ff/0x760
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885573] [<ffffffff810ba184>] ?
__alloc_pages_nodemask+0x11c/0x5f4
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885575] [<ffffffff8118e316>] ?
cpumask_next_and+0x2a/0x3a
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885577] [<ffffffff810453c3>] ?
find_busiest_group+0x9ae/0xa1e
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885579] [<ffffffff81062afe>] ?
alloc_pid+0x26e/0x390
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885581] [<ffffffff810b95c0>] ?
__get_free_pages+0x9/0x46
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885583] [<ffffffff8104c506>] ?
copy_process+0xd7/0x115f
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885585] [<ffffffff8104d6e5>] ?
do_fork+0x157/0x31e
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885587] [<ffffffff81048261>] ?
finish_task_switch+0x3a/0xaf
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885589] [<ffffffff81011b42>] ?
kernel_thread+0x82/0xe0
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885590] [<ffffffff81064bc4>] ?
kthread+0x0/0x81
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885592] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885594] [<ffffffff81064b89>] ?
kthreadd+0xb1/0xec
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885596] [<ffffffff814f5140>] ?
early_idt_handler+0x0/0x71
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885598] [<ffffffff81011baa>] ?
child_rip+0xa/0x20
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885600] [<ffffffff814f5140>] ?
early_idt_handler+0x0/0x71
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885602] [<ffffffff810e01b1>] ?
do_set_mempolicy+0x128/0x13a
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885603] [<ffffffff81064ad8>] ?
kthreadd+0x0/0xec
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885605] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885616] INFO: task
md126_raid10:3493 blocked for more than 120 seconds.
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885641] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885678] md126_raid10 D
0000000000000000 0 3493 2 0x00000000
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885681] ffff88033f02b880
0000000000000046 0000000000000000 0000000a00000006
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885683] 0000006cffffffff
ffff880006e0fa98 000000000000f9e0 ffff88033df07fd8
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885685] 0000000000015780
0000000000015780 ffff88033e79aa60 ffff88033e79ad58
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885687] Call Trace:
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885689] [<ffffffff811951d6>] ?
sprintf+0x51/0x59
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885691] [<ffffffff810414f5>] ?
select_task_rq_fair+0x472/0x836
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885692] [<ffffffff812fb3b5>] ?
schedule_timeout+0x2e/0xdd
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885694] [<ffffffff812fb26c>] ?
wait_for_common+0xde/0x15b
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885696] [<ffffffff8104a440>] ?
default_wake_function+0x0/0x9
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885699] [<ffffffff81064d7a>] ?
kthread_create+0x93/0x121
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885702] [<ffffffffa0168764>] ?
md_thread+0x0/0x10f [md_mod]
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885705] [<ffffffff810e7fb9>] ?
__kmalloc+0x12f/0x141
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885708] [<ffffffffa01686ba>] ?
md_register_thread+0x22/0xcc [md_mod]
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885711] [<ffffffffa0167510>] ?
md_do_sync+0x0/0xaf6 [md_mod]
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885714] [<ffffffffa016872e>] ?
md_register_thread+0x96/0xcc [md_mod]
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885716] [<ffffffffa016aee2>] ?
md_check_recovery+0x3fd/0x4b9 [md_mod]
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885719] [<ffffffffa018116c>] ?
flush_pending_writes+0x13/0x8a [raid10]
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885721] [<ffffffffa0181397>] ?
raid10d+0x42/0xade [raid10]
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885723] [<ffffffff812faff8>] ?
thread_return+0x79/0xe0
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885725] [<ffffffff8101166e>] ?
apic_timer_interrupt+0xe/0x20
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885727] [<ffffffff812fb055>] ?
thread_return+0xd6/0xe0
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885728] [<ffffffff812fb3b5>] ?
schedule_timeout+0x2e/0xdd
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885731] [<ffffffffa0168855>] ?
md_thread+0xf1/0x10f [md_mod]
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885733] [<ffffffff81064f0a>] ?
autoremove_wake_function+0x0/0x2e
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885736] [<ffffffffa0168764>] ?
md_thread+0x0/0x10f [md_mod]
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885738] [<ffffffff81064c3d>] ?
kthread+0x79/0x81
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885739] [<ffffffff81011baa>] ?
child_rip+0xa/0x20
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885741] [<ffffffff81064bc4>] ?
kthread+0x0/0x81
Jul 8 15:05:22 ecs-1u kernel: [ 9236.885742] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
....
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807402] INFO: task
md126_raid10:3493 blocked for more than 120 seconds.
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807427] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807465] md126_raid10 D
0000000000000000 0 3493 2 0x00000000
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807467] ffff88033f02b880
0000000000000046 0000000000000000 0000000a00000006
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807469] 0000006cffffffff
ffff880006e0fa98 000000000000f9e0 ffff88033df07fd8
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807471] 0000000000015780
0000000000015780 ffff88033e79aa60 ffff88033e79ad58
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807473] Call Trace:
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807475] [<ffffffff811951d6>] ?
sprintf+0x51/0x59
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807477] [<ffffffff810414f5>] ?
select_task_rq_fair+0x472/0x836
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807479] [<ffffffff812fb3b5>] ?
schedule_timeout+0x2e/0xdd
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807481] [<ffffffff812fb26c>] ?
wait_for_common+0xde/0x15b
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807483] [<ffffffff8104a440>] ?
default_wake_function+0x0/0x9
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807485] [<ffffffff81064d7a>] ?
kthread_create+0x93/0x121
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807488] [<ffffffffa0168764>] ?
md_thread+0x0/0x10f [md_mod]
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807491] [<ffffffff810e7fb9>] ?
__kmalloc+0x12f/0x141
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807494] [<ffffffffa01686ba>] ?
md_register_thread+0x22/0xcc [md_mod]
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807497] [<ffffffffa0167510>] ?
md_do_sync+0x0/0xaf6 [md_mod]
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807500] [<ffffffffa016872e>] ?
md_register_thread+0x96/0xcc [md_mod]
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807503] [<ffffffffa016aee2>] ?
md_check_recovery+0x3fd/0x4b9 [md_mod]
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807506] [<ffffffffa018116c>] ?
flush_pending_writes+0x13/0x8a [raid10]
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807508] [<ffffffffa0181397>] ?
raid10d+0x42/0xade [raid10]
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807510] [<ffffffff812faff8>] ?
thread_return+0x79/0xe0
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807511] [<ffffffff8101166e>] ?
apic_timer_interrupt+0xe/0x20
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807513] [<ffffffff812fb055>] ?
thread_return+0xd6/0xe0
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807515] [<ffffffff812fb3b5>] ?
schedule_timeout+0x2e/0xdd
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807518] [<ffffffffa0168855>] ?
md_thread+0xf1/0x10f [md_mod]
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807520] [<ffffffff81064f0a>] ?
autoremove_wake_function+0x0/0x2e
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807522] [<ffffffffa0168764>] ?
md_thread+0x0/0x10f [md_mod]
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807524] [<ffffffff81064c3d>] ?
kthread+0x79/0x81
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807526] [<ffffffff81011baa>] ?
child_rip+0xa/0x20
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807527] [<ffffffff81064bc4>] ?
kthread+0x0/0x81
Jul 8 15:07:22 ecs-1u kernel: [ 9356.807529] [<ffffffff81011ba0>] ?
child_rip+0x0/0x20
4. Eventually, the server is restarted because it's just hanging on cat
/proc/mdstat
Jul 12 00:11:06 ecs-1u kernel: [300990.576353] md: ioctl lock
interrupted, reason -4, cmd -2142762735
Jul 12 00:15:16 ecs-1u kernel: [301240.301494] md: ioctl lock
interrupted, reason -4, cmd -2142762735
Jul 12 00:17:35 ecs-1u kernel: [301379.418775] md: ioctl lock
interrupted, reason -4, cmd -2142762735
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