[CentOS] slow performance on company production server I need help

Wed Apr 22 15:05:06 UTC 2020
Simon Matter <simon.matter at invoca.ch>

> Hello Everyone,
>
> Since rebooting my Centos 6.10 Openvz server "daisy" yesterday, I am
> getting horrible system performance.  /var/log/messages is full of
> HDIO_GET_IDENTITY failed for /dev/sdb.  The latest entries look like this:
>
> Apr 22 08:51:32 daisy kernel: [141224.655699] CT: 1005: stopped
> Apr 22 08:55:04 daisy ata_id[21513]: HDIO_GET_IDENTITY failed for
> '/dev/sdb'

Hi,

You didn't tell us much about your hardware. It seems you're running a
3ware controller in it.

What exactly is /dev/sdb? I don't know 3ware so I can only guess but it
looks to me like at least one of your drives is having problems.

Any chance you can check SMART status on the disks or have it do a SMART
test? I guess your 3ware controller has to initiate this.

Regards,
Simon

> Apr 22 09:00:05 daisy ata_id[21584]: HDIO_GET_IDENTITY failed for
> '/dev/sdb'
> Apr 22 09:05:02 daisy ata_id[21644]: HDIO_GET_IDENTITY failed for
> '/dev/sdb'
> Apr 22 09:10:01 daisy ata_id[22282]: HDIO_GET_IDENTITY failed for
> '/dev/sdb'
> Apr 22 09:11:49 daisy kernel: [142441.721065] INFO: task hdparm:22246
> blocked for more than 120 seconds.
> Apr 22 09:11:49 daisy kernel: [142441.721083]       Not tainted
> 2.6.32-042stab142.1 #1
> Apr 22 09:11:49 daisy kernel: [142441.721093] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 22 09:11:49 daisy kernel: [142441.721109] hdparm        D
> ffff88000c778300     0 22246  20845    0 0x00000080
> Apr 22 09:11:49 daisy kernel: [142441.721115]  ffff88006654bcb8
> 0000000000000086 ffffffff8114f130 ffff88002821fa40
> Apr 22 09:11:49 daisy kernel: [142441.721121]  ffff88000004d238
> ffff88006654bd70 ffff88006654bc88 ffffea00016ab7c0
> Apr 22 09:11:49 daisy kernel: [142441.721125]  ffff88011a707000
> ffff880028321168 000000000001b7ea 0000816be9b3faa2
> Apr 22 09:11:49 daisy kernel: [142441.721130] Call Trace:
> Apr 22 09:11:49 daisy kernel: [142441.721139]  [<ffffffff8114f130>] ?
> sync_page+0x0/0x50
> Apr 22 09:11:49 daisy kernel: [142441.721144]  [<ffffffff8107c851>] ?
> update_curr+0xe1/0x1f0
> Apr 22 09:11:49 daisy kernel: [142441.721149]  [<ffffffff81566c55>]
> schedule_timeout+0x215/0x2f0
> Apr 22 09:11:49 daisy kernel: [142441.721155]  [<ffffffff81067432>] ?
> check_preempt_curr+0x82/0xa0
> Apr 22 09:11:49 daisy kernel: [142441.721159]  [<ffffffff815669b4>]
> wait_for_completion+0xe4/0x120
> Apr 22 09:11:49 daisy kernel: [142441.721162]  [<ffffffff81071ce0>] ?
> default_wake_function+0x0/0x20
> Apr 22 09:11:49 daisy kernel: [142441.721167]  [<ffffffff815694db>] ?
> _spin_unlock_bh+0x1b/0x20
> Apr 22 09:11:49 daisy kernel: [142441.721172]  [<ffffffff811f98d8>]
> sync_inodes_sb_ub+0xa8/0x1d0
> Apr 22 09:11:49 daisy kernel: [142441.721176]  [<ffffffff8114fa6f>] ?
> filemap_fdatawait+0x2f/0x40
> Apr 22 09:11:49 daisy kernel: [142441.721181]  [<ffffffff81200f85>]
> __sync_filesystem+0x95/0xa0
> Apr 22 09:11:49 daisy kernel: [142441.721184]  [<ffffffff8120151d>]
> sync_filesystems+0x30d/0x350
> Apr 22 09:11:49 daisy kernel: [142441.721188]  [<ffffffff812016e5>]
> sys_sync+0x155/0x1a0
> Apr 22 09:11:49 daisy kernel: [142441.721192]  [<ffffffff81571424>]
> system_call_fastpath+0x22/0x3a
> Apr 22 09:13:49 daisy kernel: [142561.721069] INFO: task hdparm:22246
> blocked for more than 120 seconds.
> Apr 22 09:13:49 daisy kernel: [142561.721087]       Not tainted
> 2.6.32-042stab142.1 #1
> Apr 22 09:13:49 daisy kernel: [142561.721096] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 22 09:13:49 daisy kernel: [142561.721112] hdparm        D
> ffff88000c778300     0 22246  20845    0 0x00000080
> Apr 22 09:13:49 daisy kernel: [142561.721118]  ffff88006654bcb8
> 0000000000000086 ffffffff8114f130 ffff88002821fa40
> Apr 22 09:13:49 daisy kernel: [142561.721123]  ffff88000004d238
> ffff88006654bd70 ffff88006654bc88 ffffea00016ab7c0
> Apr 22 09:13:49 daisy kernel: [142561.721128]  ffff88011a707000
> ffff880028321168 000000000001b7ea 0000816be9b3faa2
> Apr 22 09:13:49 daisy kernel: [142561.721133] Call Trace:
> Apr 22 09:13:49 daisy kernel: [142561.721142]  [<ffffffff8114f130>] ?
> sync_page+0x0/0x50
> Apr 22 09:13:49 daisy kernel: [142561.721148]  [<ffffffff8107c851>] ?
> update_curr+0xe1/0x1f0
> Apr 22 09:13:49 daisy kernel: [142561.721153]  [<ffffffff81566c55>]
> schedule_timeout+0x215/0x2f0
> Apr 22 09:13:49 daisy kernel: [142561.721158]  [<ffffffff81067432>] ?
> check_preempt_curr+0x82/0xa0
> Apr 22 09:13:49 daisy kernel: [142561.721162]  [<ffffffff815669b4>]
> wait_for_completion+0xe4/0x120
> Apr 22 09:13:49 daisy kernel: [142561.721166]  [<ffffffff81071ce0>] ?
> default_wake_function+0x0/0x20
> Apr 22 09:13:49 daisy kernel: [142561.721170]  [<ffffffff815694db>] ?
> _spin_unlock_bh+0x1b/0x20
> Apr 22 09:13:49 daisy kernel: [142561.721176]  [<ffffffff811f98d8>]
> sync_inodes_sb_ub+0xa8/0x1d0
> Apr 22 09:13:49 daisy kernel: [142561.721180]  [<ffffffff8114fa6f>] ?
> filemap_fdatawait+0x2f/0x40
> Apr 22 09:13:49 daisy kernel: [142561.721184]  [<ffffffff81200f85>]
> __sync_filesystem+0x95/0xa0
> Apr 22 09:13:49 daisy kernel: [142561.721188]  [<ffffffff8120151d>]
> sync_filesystems+0x30d/0x350
> Apr 22 09:13:49 daisy kernel: [142561.721192]  [<ffffffff812016e5>]
> sys_sync+0x155/0x1a0
> Apr 22 09:13:49 daisy kernel: [142561.721196]  [<ffffffff81571424>]
> system_call_fastpath+0x22/0x3a
> Apr 22 09:15:06 daisy ata_id[22299]: HDIO_GET_IDENTITY failed for
> '/dev/sdb'
> Apr 22 09:15:49 daisy kernel: [142681.721085] INFO: task hdparm:22246
> blocked for more than 120 seconds.
> Apr 22 09:15:49 daisy kernel: [142681.721104]       Not tainted
> 2.6.32-042stab142.1 #1
> Apr 22 09:15:49 daisy kernel: [142681.721113] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 22 09:15:49 daisy kernel: [142681.721129] hdparm        D
> ffff88000c778300     0 22246  20845    0 0x00000080
> Apr 22 09:15:49 daisy kernel: [142681.721136]  ffff88006654bcb8
> 0000000000000086 ffffffff8114f130 ffff88002821fa40
> Apr 22 09:15:49 daisy kernel: [142681.721141]  ffff88000004d238
> ffff88006654bd70 ffff88006654bc88 ffffea00016ab7c0
> Apr 22 09:15:49 daisy kernel: [142681.721146]  ffff88011a707000
> ffff880028321168 000000000001b7ea 0000816be9b3faa2
> Apr 22 09:15:49 daisy kernel: [142681.721150] Call Trace:
> Apr 22 09:15:49 daisy kernel: [142681.721160]  [<ffffffff8114f130>] ?
> sync_page+0x0/0x50
> Apr 22 09:15:49 daisy kernel: [142681.721166]  [<ffffffff8107c851>] ?
> update_curr+0xe1/0x1f0
> Apr 22 09:15:49 daisy kernel: [142681.721172]  [<ffffffff81566c55>]
> schedule_timeout+0x215/0x2f0
> Apr 22 09:15:49 daisy kernel: [142681.721178]  [<ffffffff81067432>] ?
> check_preempt_curr+0x82/0xa0
> Apr 22 09:15:49 daisy kernel: [142681.721182]  [<ffffffff815669b4>]
> wait_for_completion+0xe4/0x120
> Apr 22 09:15:49 daisy kernel: [142681.721185]  [<ffffffff81071ce0>] ?
> default_wake_function+0x0/0x20
> Apr 22 09:15:49 daisy kernel: [142681.721190]  [<ffffffff815694db>] ?
> _spin_unlock_bh+0x1b/0x20
> Apr 22 09:15:49 daisy kernel: [142681.721196]  [<ffffffff811f98d8>]
> sync_inodes_sb_ub+0xa8/0x1d0
> Apr 22 09:15:49 daisy kernel: [142681.721200]  [<ffffffff8114fa6f>] ?
> filemap_fdatawait+0x2f/0x40
> Apr 22 09:15:49 daisy kernel: [142681.721204]  [<ffffffff81200f85>]
> __sync_filesystem+0x95/0xa0
> Apr 22 09:15:49 daisy kernel: [142681.721208]  [<ffffffff8120151d>]
> sync_filesystems+0x30d/0x350
> Apr 22 09:15:49 daisy kernel: [142681.721212]  [<ffffffff812016e5>]
> sys_sync+0x155/0x1a0
> Apr 22 09:15:49 daisy kernel: [142681.721217]  [<ffffffff81571424>]
> system_call_fastpath+0x22/0x3a
> Apr 22 09:17:49 daisy kernel: [142801.721064] INFO: task hdparm:22246
> blocked for more than 120 seconds.
> Apr 22 09:17:49 daisy kernel: [142801.721082]       Not tainted
> 2.6.32-042stab142.1 #1
> Apr 22 09:17:49 daisy kernel: [142801.721091] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 22 09:17:49 daisy kernel: [142801.721107] hdparm        D
> ffff88000c778300     0 22246  20845    0 0x00000080
> Apr 22 09:17:49 daisy kernel: [142801.721114]  ffff88006654bcb8
> 0000000000000086 ffffffff8114f130 ffff88002821fa40
> Apr 22 09:17:49 daisy kernel: [142801.721119]  ffff88000004d238
> ffff88006654bd70 ffff88006654bc88 ffffea00016ab7c0
> Apr 22 09:17:49 daisy kernel: [142801.721124]  ffff88011a707000
> ffff880028321168 000000000001b7ea 0000816be9b3faa2
> Apr 22 09:17:49 daisy kernel: [142801.721128] Call Trace:
> Apr 22 09:17:49 daisy kernel: [142801.721137]  [<ffffffff8114f130>] ?
> sync_page+0x0/0x50
> Apr 22 09:17:49 daisy kernel: [142801.721143]  [<ffffffff8107c851>] ?
> update_curr+0xe1/0x1f0
> Apr 22 09:17:49 daisy kernel: [142801.721149]  [<ffffffff81566c55>]
> schedule_timeout+0x215/0x2f0
> Apr 22 09:17:49 daisy kernel: [142801.721154]  [<ffffffff81067432>] ?
> check_preempt_curr+0x82/0xa0
> Apr 22 09:17:49 daisy kernel: [142801.721158]  [<ffffffff815669b4>]
> wait_for_completion+0xe4/0x120
> Apr 22 09:17:49 daisy kernel: [142801.721162]  [<ffffffff81071ce0>] ?
> default_wake_function+0x0/0x20
> Apr 22 09:17:49 daisy kernel: [142801.721166]  [<ffffffff815694db>] ?
> _spin_unlock_bh+0x1b/0x20
> Apr 22 09:17:49 daisy kernel: [142801.721172]  [<ffffffff811f98d8>]
> sync_inodes_sb_ub+0xa8/0x1d0
> Apr 22 09:17:49 daisy kernel: [142801.721176]  [<ffffffff8114fa6f>] ?
> filemap_fdatawait+0x2f/0x40
> Apr 22 09:17:49 daisy kernel: [142801.721180]  [<ffffffff81200f85>]
> __sync_filesystem+0x95/0xa0
> Apr 22 09:17:49 daisy kernel: [142801.721184]  [<ffffffff8120151d>]
> sync_filesystems+0x30d/0x350
> Apr 22 09:17:49 daisy kernel: [142801.721188]  [<ffffffff812016e5>]
> sys_sync+0x155/0x1a0
> Apr 22 09:17:49 daisy kernel: [142801.721192]  [<ffffffff81571424>]
> system_call_fastpath+0x22/0x3a
> Apr 22 09:20:01 daisy ata_id[22405]: HDIO_GET_IDENTITY failed for
> '/dev/sdb'
> Apr 22 09:21:49 daisy kernel: [143041.721494] INFO: task hdparm:22246
> blocked for more than 120 seconds.
> Apr 22 09:21:49 daisy kernel: [143041.721512]       Not tainted
> 2.6.32-042stab142.1 #1
> Apr 22 09:21:49 daisy kernel: [143041.721522] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 22 09:21:49 daisy kernel: [143041.721691] hdparm        D
> ffff88000c778300     0 22246  20845    0 0x00000080
> Apr 22 09:21:49 daisy kernel: [143041.721697]  ffff88006654bcc8
> 0000000000000086 ffff88006654bc58 ffffffff810098af
> Apr 22 09:21:49 daisy kernel: [143041.721702]  ffff880028200000
> 000000001a42f238 ffff8800110101c0 ffff88011a42f200
> Apr 22 09:21:49 daisy kernel: [143041.721706]  ffff88006654bc68
> ffffffff8107bbfe ffff8800110101c0 0000000000000000
> Apr 22 09:21:49 daisy kernel: [143041.721711] Call Trace:
> Apr 22 09:21:49 daisy kernel: [143041.721720]  [<ffffffff810098af>] ?
> __switch_to+0x16f/0x470
> Apr 22 09:21:49 daisy kernel: [143041.721726]  [<ffffffff8107bbfe>] ?
> finish_task_switch+0xce/0x120
> Apr 22 09:21:49 daisy kernel: [143041.721730]  [<ffffffff8107c851>] ?
> update_curr+0xe1/0x1f0
> Apr 22 09:21:49 daisy kernel: [143041.721735]  [<ffffffff81566c55>]
> schedule_timeout+0x215/0x2f0
> Apr 22 09:21:49 daisy kernel: [143041.721739]  [<ffffffff815669b4>]
> wait_for_completion+0xe4/0x120
> Apr 22 09:21:49 daisy kernel: [143041.721743]  [<ffffffff81071ce0>] ?
> default_wake_function+0x0/0x20
> Apr 22 09:21:49 daisy kernel: [143041.721747]  [<ffffffff815694db>] ?
> _spin_unlock_bh+0x1b/0x20
> Apr 22 09:21:49 daisy kernel: [143041.721753]  [<ffffffff811f9773>]
> writeback_inodes_sb_nr_ub+0x83/0xb0
> Apr 22 09:21:49 daisy kernel: [143041.721757]  [<ffffffff811f9806>]
> writeback_inodes_sb_ub+0x46/0x50
> Apr 22 09:21:49 daisy kernel: [143041.721762]  [<ffffffff81200f38>]
> __sync_filesystem+0x48/0xa0
> Apr 22 09:21:49 daisy kernel: [143041.721765]  [<ffffffff8120151d>]
> sync_filesystems+0x30d/0x350
> Apr 22 09:21:49 daisy kernel: [143041.721769]  [<ffffffff812016d8>]
> sys_sync+0x148/0x1a0
> Apr 22 09:21:49 daisy kernel: [143041.721773]  [<ffffffff81571424>]
> system_call_fastpath+0x22/0x3a
> Apr 22 09:23:49 daisy kernel: [143161.721064] INFO: task hdparm:22246
> blocked for more than 120 seconds.
> Apr 22 09:23:49 daisy kernel: [143161.721169]       Not tainted
> 2.6.32-042stab142.1 #1
> Apr 22 09:23:49 daisy kernel: [143161.721259] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 22 09:23:49 daisy kernel: [143161.721430] hdparm        D
> ffff88000c778300     0 22246  20845    0 0x00000080
> Apr 22 09:23:49 daisy kernel: [143161.721437]  ffff88006654bcc8
> 0000000000000086 ffff88006654bc58 ffffffff810098af
> Apr 22 09:23:49 daisy kernel: [143161.721442]  ffff880028200000
> 000000001a42f238 ffff8800110101c0 ffff88011a42f200
> Apr 22 09:23:49 daisy kernel: [143161.721447]  ffff88006654bc68
> ffffffff8107bbfe ffff8800110101c0 0000000000000000
> Apr 22 09:23:49 daisy kernel: [143161.721451] Call Trace:
> Apr 22 09:23:49 daisy kernel: [143161.721460]  [<ffffffff810098af>] ?
> __switch_to+0x16f/0x470
> Apr 22 09:23:49 daisy kernel: [143161.721466]  [<ffffffff8107bbfe>] ?
> finish_task_switch+0xce/0x120
> Apr 22 09:23:49 daisy kernel: [143161.721470]  [<ffffffff8107c851>] ?
> update_curr+0xe1/0x1f0
> Apr 22 09:23:49 daisy kernel: [143161.721475]  [<ffffffff81566c55>]
> schedule_timeout+0x215/0x2f0
> Apr 22 09:23:49 daisy kernel: [143161.721479]  [<ffffffff815669b4>]
> wait_for_completion+0xe4/0x120
> Apr 22 09:23:49 daisy kernel: [143161.721483]  [<ffffffff81071ce0>] ?
> default_wake_function+0x0/0x20
> Apr 22 09:23:49 daisy kernel: [143161.721487]  [<ffffffff815694db>] ?
> _spin_unlock_bh+0x1b/0x20
> Apr 22 09:23:49 daisy kernel: [143161.721493]  [<ffffffff811f9773>]
> writeback_inodes_sb_nr_ub+0x83/0xb0
> Apr 22 09:23:49 daisy kernel: [143161.721498]  [<ffffffff811f9806>]
> writeback_inodes_sb_ub+0x46/0x50
> Apr 22 09:23:49 daisy kernel: [143161.721502]  [<ffffffff81200f38>]
> __sync_filesystem+0x48/0xa0
> Apr 22 09:23:49 daisy kernel: [143161.721506]  [<ffffffff8120151d>]
> sync_filesystems+0x30d/0x350
> Apr 22 09:23:49 daisy kernel: [143161.721510]  [<ffffffff812016d8>]
> sys_sync+0x148/0x1a0
> Apr 22 09:23:49 daisy kernel: [143161.721514]  [<ffffffff81571424>]
> system_call_fastpath+0x22/0x3a
> Apr 22 09:25:02 daisy ata_id[22445]: HDIO_GET_IDENTITY failed for
> '/dev/sdb'
> Apr 22 09:25:49 daisy kernel: [143281.721066] INFO: task hdparm:22246
> blocked for more than 120 seconds.
> Apr 22 09:25:49 daisy kernel: [143281.721159]       Not tainted
> 2.6.32-042stab142.1 #1
> Apr 22 09:25:49 daisy kernel: [143281.721244] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 22 09:25:49 daisy kernel: [143281.721408] hdparm        D
> ffff88000c778300     0 22246  20845    0 0x00000080
> Apr 22 09:25:49 daisy kernel: [143281.721415]  ffff88006654bcc8
> 0000000000000086 ffff88006654bc58 ffffffff810098af
> Apr 22 09:25:49 daisy kernel: [143281.721420]  ffff880028200000
> 000000001a42f238 ffff8800110101c0 ffff88011a42f200
> Apr 22 09:25:49 daisy kernel: [143281.721424]  ffff88006654bc68
> ffffffff8107bbfe ffff8800110101c0 0000000000000000
> Apr 22 09:25:49 daisy kernel: [143281.721429] Call Trace:
> Apr 22 09:25:49 daisy kernel: [143281.721438]  [<ffffffff810098af>] ?
> __switch_to+0x16f/0x470
> Apr 22 09:25:49 daisy kernel: [143281.721444]  [<ffffffff8107bbfe>] ?
> finish_task_switch+0xce/0x120
> Apr 22 09:25:49 daisy kernel: [143281.721448]  [<ffffffff8107c851>] ?
> update_curr+0xe1/0x1f0
> Apr 22 09:25:49 daisy kernel: [143281.721453]  [<ffffffff81566c55>]
> schedule_timeout+0x215/0x2f0
> Apr 22 09:25:49 daisy kernel: [143281.721457]  [<ffffffff815669b4>]
> wait_for_completion+0xe4/0x120
> Apr 22 09:25:49 daisy kernel: [143281.721461]  [<ffffffff81071ce0>] ?
> default_wake_function+0x0/0x20
> Apr 22 09:25:49 daisy kernel: [143281.721465]  [<ffffffff815694db>] ?
> _spin_unlock_bh+0x1b/0x20
> Apr 22 09:25:49 daisy kernel: [143281.721471]  [<ffffffff811f9773>]
> writeback_inodes_sb_nr_ub+0x83/0xb0
> Apr 22 09:25:49 daisy kernel: [143281.721476]  [<ffffffff811f9806>]
> writeback_inodes_sb_ub+0x46/0x50
> Apr 22 09:25:49 daisy kernel: [143281.721480]  [<ffffffff81200f38>]
> __sync_filesystem+0x48/0xa0
> Apr 22 09:25:49 daisy kernel: [143281.721484]  [<ffffffff8120151d>]
> sync_filesystems+0x30d/0x350
> Apr 22 09:25:49 daisy kernel: [143281.721487]  [<ffffffff812016d8>]
> sys_sync+0x148/0x1a0
> Apr 22 09:25:49 daisy kernel: [143281.721492]  [<ffffffff81571424>]
> system_call_fastpath+0x22/0x3a
> Apr 22 09:27:49 daisy kernel: [143401.721072] INFO: task hdparm:22246
> blocked for more than 120 seconds.
> Apr 22 09:27:49 daisy kernel: [143401.721165]       Not tainted
> 2.6.32-042stab142.1 #1
> Apr 22 09:27:49 daisy kernel: [143401.721253] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 22 09:27:49 daisy kernel: [143401.721421] hdparm        D
> ffff88000c778300     0 22246  20845    0 0x00000080
> Apr 22 09:27:49 daisy kernel: [143401.721427]  ffff88006654bcc8
> 0000000000000086 ffff88006654bc58 ffffffff810098af
> Apr 22 09:27:49 daisy kernel: [143401.721432]  ffff880028200000
> 000000001a42f238 ffff8800110101c0 ffff88011a42f200
> Apr 22 09:27:49 daisy kernel: [143401.721436]  ffff88006654bc68
> ffffffff8107bbfe ffff8800110101c0 0000000000000000
> Apr 22 09:27:49 daisy kernel: [143401.721441] Call Trace:
> Apr 22 09:27:49 daisy kernel: [143401.721450]  [<ffffffff810098af>] ?
> __switch_to+0x16f/0x470
> Apr 22 09:27:49 daisy kernel: [143401.721456]  [<ffffffff8107bbfe>] ?
> finish_task_switch+0xce/0x120
> Apr 22 09:27:49 daisy kernel: [143401.721460]  [<ffffffff8107c851>] ?
> update_curr+0xe1/0x1f0
> Apr 22 09:27:49 daisy kernel: [143401.721465]  [<ffffffff81566c55>]
> schedule_timeout+0x215/0x2f0
> Apr 22 09:27:49 daisy kernel: [143401.721469]  [<ffffffff815669b4>]
> wait_for_completion+0xe4/0x120
> Apr 22 09:27:49 daisy kernel: [143401.721473]  [<ffffffff81071ce0>] ?
> default_wake_function+0x0/0x20
> Apr 22 09:27:49 daisy kernel: [143401.721477]  [<ffffffff815694db>] ?
> _spin_unlock_bh+0x1b/0x20
> Apr 22 09:27:49 daisy kernel: [143401.721483]  [<ffffffff811f9773>]
> writeback_inodes_sb_nr_ub+0x83/0xb0
> Apr 22 09:27:49 daisy kernel: [143401.721487]  [<ffffffff811f9806>]
> writeback_inodes_sb_ub+0x46/0x50
> Apr 22 09:27:49 daisy kernel: [143401.721492]  [<ffffffff81200f38>]
> __sync_filesystem+0x48/0xa0
> Apr 22 09:27:49 daisy kernel: [143401.721495]  [<ffffffff8120151d>]
> sync_filesystems+0x30d/0x350
> Apr 22 09:27:49 daisy kernel: [143401.721499]  [<ffffffff812016d8>]
> sys_sync+0x148/0x1a0
> Apr 22 09:27:49 daisy kernel: [143401.721503]  [<ffffffff81571424>]
> system_call_fastpath+0x22/0x3a
> Apr 22 09:29:49 daisy kernel: [143521.721059] INFO: task hdparm:22246
> blocked for more than 120 seconds.
> Apr 22 09:29:49 daisy kernel: [143521.721158]       Not tainted
> 2.6.32-042stab142.1 #1
> Apr 22 09:29:49 daisy kernel: [143521.721245] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Apr 22 09:29:49 daisy kernel: [143521.721415] hdparm        D
> ffff88000c778300     0 22246  20845    0 0x00000084
> Apr 22 09:29:49 daisy kernel: [143521.721421]  ffff88006654bcc8
> 0000000000000086 ffff88006654bc58 ffffffff810098af
> Apr 22 09:29:49 daisy kernel: [143521.721426]  ffff880028200000
> 000000001a42f238 ffff8800110101c0 ffff88011a42f200
> Apr 22 09:29:49 daisy kernel: [143521.721431]  ffff88006654bc68
> ffffffff8107bbfe ffff8800110101c0 0000000000000000
> Apr 22 09:29:49 daisy kernel: [143521.721436] Call Trace:
> Apr 22 09:29:49 daisy kernel: [143521.721445]  [<ffffffff810098af>] ?
> __switch_to+0x16f/0x470
> Apr 22 09:29:49 daisy kernel: [143521.721451]  [<ffffffff8107bbfe>] ?
> finish_task_switch+0xce/0x120
> Apr 22 09:29:49 daisy kernel: [143521.721455]  [<ffffffff8107c851>] ?
> update_curr+0xe1/0x1f0
> Apr 22 09:29:49 daisy kernel: [143521.721460]  [<ffffffff81566c55>]
> schedule_timeout+0x215/0x2f0
> Apr 22 09:29:49 daisy kernel: [143521.721465]  [<ffffffff815669b4>]
> wait_for_completion+0xe4/0x120
> Apr 22 09:29:49 daisy kernel: [143521.721469]  [<ffffffff81071ce0>] ?
> default_wake_function+0x0/0x20
> Apr 22 09:29:49 daisy kernel: [143521.721473]  [<ffffffff815694db>] ?
> _spin_unlock_bh+0x1b/0x20
> Apr 22 09:29:49 daisy kernel: [143521.721479]  [<ffffffff811f9773>]
> writeback_inodes_sb_nr_ub+0x83/0xb0
> Apr 22 09:29:49 daisy kernel: [143521.721483]  [<ffffffff811f9806>]
> writeback_inodes_sb_ub+0x46/0x50
> Apr 22 09:29:49 daisy kernel: [143521.721487]  [<ffffffff81200f38>]
> __sync_filesystem+0x48/0xa0
> Apr 22 09:29:49 daisy kernel: [143521.721491]  [<ffffffff8120151d>]
> sync_filesystems+0x30d/0x350
> Apr 22 09:29:49 daisy kernel: [143521.721495]  [<ffffffff812016d8>]
> sys_sync+0x148/0x1a0
> Apr 22 09:29:49 daisy kernel: [143521.721499]  [<ffffffff81571424>]
> system_call_fastpath+0x22/0x3a
> Apr 22 09:30:04 daisy ata_id[22489]: HDIO_GET_IDENTITY failed for
> '/dev/sdb'
> ------------------
> I tried running hdparm -tT /dev/sda, but after waiting 5+ minutes for
> any command output I cancelled it. 
>
> I am rsyncing the data from this system over to another system now,
> clearly something is wrong, but I can't tell what. 
>
> The system is an older AMD Opteron 180 processor (dual core) 4 GB ram,
> RAID controller with RAID 5 set up with 4x 4TB Western Digital Drives.
>
> I rebooted the system day before yesterday, and that's when the timeout
> messages started pouring into the log.   
>
> when I run tw_cli /c8 show, all four drives say they are ok
> [root at daisy cron.daily]# tw_cli /c8 show
>
> Unit  UnitType  Status         %RCmpl  %V/I/M  Stripe  Size(GB)  Cache 
> AVrfy
> ------------------------------------------------------------------------------
> u0    RAID-5    OK             -       -       256K    11175.8   Ri     ON
>
> VPort Status         Unit Size      Type  Phy Encl-Slot    Model
> ------------------------------------------------------------------------------
> p0    OK             u0   3.63 TB   SATA  0   -            WDC
> WD4005FZBX-00K5
> p1    OK             u0   3.63 TB   SATA  1   -            WDC
> WD4005FZBX-00K5
> p2    OK             u0   3.63 TB   SATA  2   -            WDC
> WD4005FZBX-00K5
> p3    OK             u0   3.63 TB   SATA  3   -            WDC
> WD4005FZBX-00K5
>
> Logical Volumes appear active:
> [root at daisy cron.daily]# lvscan
>   ACTIVE            '/dev/vg_daisy/lv_root' [10.89 TiB] inherit
>   ACTIVE            '/dev/vg_daisy/lv_swap' [3.88 GiB] inherit
>   ACTIVE            '/dev/vg_daisy/lv_home' [20.00 GiB] inherit
> [root at daisy cron.daily]#
>
> [root at daisy cron.daily]# lvmdiskscan
>   /dev/ram0             [      16.00 MiB]
>   /dev/root             [      10.89 TiB]
>   /dev/ram1             [      16.00 MiB]
>   /dev/sda1             [       2.82 TiB]
>   /dev/vg_daisy/lv_swap [       3.88 GiB]
>   /dev/ram2             [      16.00 MiB]
>   /dev/vg_daisy/lv_home [      20.00 GiB]
>   /dev/ram3             [      16.00 MiB]
>   /dev/sda3             [     842.87 GiB]
>   /dev/ram4             [      16.00 MiB]
>   /dev/ram5             [      16.00 MiB]
>   /dev/ram6             [      16.00 MiB]
>   /dev/ram7             [      16.00 MiB]
>   /dev/ram8             [      16.00 MiB]
>   /dev/ram9             [      16.00 MiB]
>   /dev/ram10            [      16.00 MiB]
>   /dev/ram11            [      16.00 MiB]
>   /dev/ram12            [      16.00 MiB]
>   /dev/ram13            [      16.00 MiB]
>   /dev/ram14            [      16.00 MiB]
>   /dev/ram15            [      16.00 MiB]
>   /dev/sdb1             [       1.82 TiB] LVM physical volume
>   /dev/sdc1             [     500.00 MiB]
>   /dev/sdc2             [       4.00 TiB] LVM physical volume
>   /dev/sdd1             [       4.00 TiB] LVM physical volume
>   /dev/sde1             [       2.91 TiB] LVM physical volume
>   3 disks
>   19 partitions
>   0 LVM physical volume whole disks
>   4 LVM physical volumes
> [root at daisy cron.daily]#
>
> grub.conf:
> [root at daisy grub]# cat grub.conf
> # grub.conf generated by anaconda
> #
> # Note that you do not have to rerun grub after making changes to this
> file
> # NOTICE:  You have a /boot partition.  This means that
> #          all kernel and initrd paths are relative to /boot/, eg.
> #          root (hd0,0)
> #          kernel /vmlinuz-version ro root=/dev/mapper/vg_daisy-lv_root
> #          initrd /initrd-[generic-]version.img
> #boot=/dev/sdb
> default=0
> timeout=5
> splashimage=(hd0,0)/grub/splash.xpm.gz
> hiddenmenu
> title OpenVZ (2.6.32-042stab142.1)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.32-042stab142.1 ro
> root=/dev/mapper/vg_daisy-lv_root rd_NO_LUKS rd_LVM_LV=vg_daisy/lv_swap
> LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto
> rd_LVM_LV=vg_daisy/lv_root  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb
> quiet
>         initrd /initramfs-2.6.32-042stab142.1.img
> title OpenVZ (2.6.32-042stab141.3)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.32-042stab141.3 ro
> root=/dev/mapper/vg_daisy-lv_root rd_NO_LUKS rd_LVM_LV=vg_daisy/lv_swap
> LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto
> rd_LVM_LV=vg_daisy/lv_root  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb
> quiet
>         initrd /initramfs-2.6.32-042stab141.3.img
> title OpenVZ (2.6.32-042stab140.4)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.32-042stab140.4 ro
> root=/dev/mapper/vg_daisy-lv_root rd_NO_LUKS rd_LVM_LV=vg_daisy/lv_swap
> LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto
> rd_LVM_LV=vg_daisy/lv_root  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb
> quiet
>         initrd /initramfs-2.6.32-042stab140.4.img
> title OpenVZ (2.6.32-042stab140.1)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.32-042stab140.1 ro
> root=/dev/mapper/vg_daisy-lv_root rd_NO_LUKS rd_LVM_LV=vg_daisy/lv_swap
> LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto
> rd_LVM_LV=vg_daisy/lv_root  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb
> quiet
>         initrd /initramfs-2.6.32-042stab140.1.img
> title OpenVZ (2.6.32-042stab139.1)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.32-042stab139.1 ro
> root=/dev/mapper/vg_daisy-lv_root rd_NO_LUKS rd_LVM_LV=vg_daisy/lv_swap
> LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto
> rd_LVM_LV=vg_daisy/lv_root  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb
> quiet
>         initrd /initramfs-2.6.32-042stab139.1.img
> title CentOS 6 (2.6.32-754.el6.x86_64)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.32-754.el6.x86_64 ro
> root=/dev/mapper/vg_daisy-lv_root rd_NO_LUKS rd_LVM_LV=vg_daisy/lv_swap
> LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto
> rd_LVM_LV=vg_daisy/lv_root  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb
> quiet
>         initrd /initramfs-2.6.32-754.el6.x86_64.img
> -------------
>
> Top is not showing anything out of the ordinary:
> ----------
> [root at daisy grub]#
>
> top - 09:41:57 up 1 day, 16:04,  3 users,  load average: 5.89, 5.83, 5.43
> Tasks: 369 total,   1 running, 368 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.2%us,  1.2%sy,  0.0%ni, 25.0%id, 73.5%wa,  0.0%hi,  0.2%si, 
> 0.0%st
> Mem:   3894628k total,  3861280k used,    33348k free,    95608k buffers
> Swap:  4063228k total,    34888k used,  4028340k free,  3139272k cached
>
>     PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>    1266 root      20   0     0    0    0 D  1.0  0.0  12:27.75 flush-253:0
>   21041 1153      20   0  3188 1840 1012 D  0.7  0.0   0:00.72 imap
>   21599 97        20   0  5160 1940 1568 S  0.7  0.0   0:01.06 imap-login
>   22636 root      20   0 15272 1524  964 R  0.7  0.0   0:00.06 top
>    1977 root      20   0  2096  644  360 S  0.3  0.0   0:27.92 dovecot
>   22528 97        20   0  5160 2044 1672 S  0.3  0.1   0:00.35 imap-login
>   22578 1155      20   0  2904 1528  940 D  0.3  0.0   0:00.22 imap
>       1 root      20   0 19236  268  136 S  0.0  0.0   0:00.68 init
>       2 root      20   0     0    0    0 S  0.0  0.0   0:00.00 kthreadd
>       3 root      RT   0     0    0    0 S  0.0  0.0   0:00.04 migration/0
>       4 root      20   0     0    0    0 S  0.0  0.0   0:01.88 ksoftirqd/0
>       5 root      RT   0     0    0    0 S  0.0  0.0   0:00.00 stopper/0
>       6 root      RT   0     0    0    0 S  0.0  0.0   0:00.19 watchdog/0
>       7 root      RT   0     0    0    0 S  0.0  0.0   0:00.07 migration/1
>       8 root      RT   0     0    0    0 S  0.0  0.0   0:00.00 stopper/1
>       9 root      20   0     0    0    0 S  0.0  0.0   0:03.17 ksoftirqd/1
>      10 root      RT   0     0    0    0 S  0.0  0.0   0:00.20 watchdog/1
>      11 root      20   0     0    0    0 S  0.0  0.0   0:07.23 events/0
>      12 root      20   0     0    0    0 S  0.0  0.0   0:08.55 events/1
>      13 root      20   0     0    0    0 S  0.0  0.0   0:00.00 events/0
>      14 root      20   0     0    0    0 S  0.0  0.0   0:00.00 events/1
>      15 root      20   0     0    0    0 S  0.0  0.0   0:00.00
> events_long/0
>      16 root      20   0     0    0    0 S  0.0  0.0   0:00.00
> events_long/1
>      17 root      20   0     0    0    0 S  0.0  0.0   0:00.00
> events_power_ef
>      18 root      20   0     0    0    0 S  0.0  0.0   0:00.00
> events_power_ef
>      19 root      20   0     0    0    0 S  0.0  0.0   0:00.00 cgroup
>      20 root      20   0     0    0    0 S  0.0  0.0   0:00.00 khelper
>      21 root      20   0     0    0    0 S  0.0  0.0   0:00.01 netns
>      22 root      20   0     0    0    0 S  0.0  0.0   0:00.00 async/mgr
>      23 root      20   0     0    0    0 S  0.0  0.0   0:00.00 pm
>      24 root      20   0     0    0    0 S  0.0  0.0   0:00.29 sync_supers
> ------------
> This is a company production mail server, and I can't find the solution,
> I need help, as soon as someone is able, thank you!
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos
>