我有一台服务器运行
Linux 3.2.12 32位i686,带有13个驱动器：1个启动驱动器和3个raid5设备,每个驱动器有4个驱动器.
/ proc / mdstat显示
Personalities : [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid5 sdd1[3] sdc1[2] sdb1[1] sda1[0]
5860535808 blocks level 5,64k chunk,algorithm 2 [4/4] [UUUU]
md1 : active raid5 sdk1[3] sdj1[2] sdi1[1] sdh1[0]
4395407808 blocks level 5,algorithm 2 [4/4] [UUUU]
md3 : active raid5 sdl1[0] sdm1[1] sdf1[3] sde1[2]
5860535808 blocks level 5,algorithm 2 [4/4] [UUUU]
unused devices: <none>
我的问题是,在三天内第二次,其中一个raid驱动器导致任何尝试从中读取锁定的进程.没有信号能够终止这些过程,我必须重新启动才能让它再次运行.但是,重新启动后驱动器似乎很好并且raid状态似乎很好,并且内核日志没有任何有用的错误消息,除了该进程挂起.
我在所有驱动器上运行smartctl,看起来很好.
还有什么我可以检查来尝试和诊断这个？
这里是内核日志的例外,看起来半有趣.但请注意,“无法将ioctl发送到分区”已经存在,并且搜索产生了这是一个无害的警告.
每900秒：
... Aug 20 18:34:01 [kernel] [ 931.249505] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:01 [kernel] [ 1831.302297] scsi_verify_blk_ioctl: 2 callbacks suppressed Aug 20 18:49:01 [kernel] [ 1831.302300] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:01 [kernel] [ 1831.302302] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:01 [kernel] [ 1831.302774] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:01 [kernel] [ 1831.302776] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:02 [kernel] [ 1831.333538] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:02 [kernel] [ 1831.333540] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:02 [kernel] [ 1831.358068] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:02 [kernel] [ 1831.358071] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:02 [kernel] [ 1831.414331] mdadm: sending ioctl 1261 to a partition! Aug 20 18:49:02 [kernel] [ 1831.414334] mdadm: sending ioctl 1261 to a partition! Aug 20 19:04:01 [kernel] [ 2731.070794] scsi_verify_blk_ioctl: 2 callbacks suppressed ...
关于问题出现的时间：
Aug 21 13:38:32 [kernel] [69601.312055] INFO: task kjournald:26008 blocked for more than 600 seconds. Aug 21 13:38:32 [kernel] [69601.312057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 21 13:38:32 [kernel] [69601.312059] kjournald D 00000000 0 26008 2 0x00000000 Aug 21 13:38:32 [kernel] [69601.312063] eb5ccc80 00000046 00000000 00000000 00000000 e81e0070 e81e020c f6205900 Aug 21 13:38:32 [kernel] [69601.312068] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Aug 21 13:38:32 [kernel] [69601.312072] 00000000 00000000 00000000 00000000 00000000 00000001 c0b66230 e81e0280 Aug 21 13:38:32 [kernel] [69601.312077] Call Trace: Aug 21 13:38:32 [kernel] [69601.312083] [<c013cbe5>] ? prepare_to_wait+0x15/0x55 Aug 21 13:38:32 [kernel] [69601.312088] [<c0217df5>] ? journal_commit_transaction+0xdb/0xca6 Aug 21 13:38:32 [kernel] [69601.312090] [<c013ca68>] ? wake_up_bit+0x16/0x16 Aug 21 13:38:32 [kernel] [69601.312093] [<c0132c3d>] ? lock_timer_base+0x19/0x35 Aug 21 13:38:32 [kernel] [69601.312095] [<c0132cb8>] ? try_to_del_timer_sync+0x5f/0x65 Aug 21 13:38:32 [kernel] [69601.312098] [<c021ade6>] ? kjournald+0xa6/0x1a2 Aug 21 13:38:32 [kernel] [69601.312101] [<c013ca68>] ? wake_up_bit+0x16/0x16 Aug 21 13:38:32 [kernel] [69601.312103] [<c021ad40>] ? journal_grab_journal_head+0x31/0x31 Aug 21 13:38:32 [kernel] [69601.312106] [<c013c778>] ? kthread+0x65/0x6a Aug 21 13:38:32 [kernel] [69601.312108] [<c013c713>] ? kthread_stop+0x47/0x47 Aug 21 13:38:32 [kernel] [69601.312111] [<c0830b36>] ? kernel_thread_helper+0x6/0xd
解决方法
首先升级你的内核.该特定内核包含
a bug,这导致各种ioctl在某些mdraid和LVM配置中打印这些警告(并且可能失败).
如果固定内核无法解决问题,请在所有驱动器上运行扩展自检.请注意,每个驱动器的自检可能需要几个小时,并且在运行时会略微降低性能,因此应在系统活动较少时运行.例如,要安排自检在晚上11点开始：
at 11 pm <<JOB
for drive in /dev/sd?
do
smartctl -t long $drive || :
done
JOB
第二天晚些时候,检查测试结果：
for drive in /dev/sd?
do
echo Test results for drive $drive
smartctl -l selftest $drive || :
done
如果内核更新没有解决问题,那么您可能会发现自检失败的驱动器.
如果找不到自检失败的驱动器,请检查驱动器属性.
for drive in /dev/sd?
do
echo Attributes for drive $drive
smartctl -A $drive || :
done
