It's a kernel bug and can safely be ignored. ----- Original Message ----- | PowerEdge 2850 with PERC SCSI RAID controller. | 16GB RAM | Dual Intel(R) Xeon(TM) CPU 3.00GHz | Using megaraid driver and xfs on 3x 300GB SCSI disks as /dev/sdb | (total 572GB) (RAID-5) | | Stock Centos 6.4 x64, everything updated. | Kernel : 2.6.32-358.2.1.el6.x86_64 #1 SMP | | My Load always shows : | | top - 10:30:21 up 23:09, 1 users, load average: 0.99, 0.96, 0.79 | | yet there is no services what-so-ever doing anything. | | Using PowerTOP I can see that xfsaild is causing second most wake-ups | (after kernel core : hrtimer_start (tick_sched_timer) ) | | | < Detailed C-state information is not P-states (frequencies) | 3.00 Ghz 100.0% | 1500 Mhz 0.0% | 1125 Mhz 0.0% | 750 Mhz 0.0% | 375 Mhz 0.0% | | Wakeups-from-idle per second : 125.1 interval: 10.0s | no ACPI power usage estimate available | | Top causes for wake-ups: | 47.7% (119.6) <kernel core> : hrtimer_start (tick_sched_timer) | 39.9% (100.0) xfsaild/sdb1 : xfsaild (process_timeout) | | | Again, using TOP I can see that xfsaild is stuck in D state. It never | changes. | | | 10050 root 20 0 0 0 0 D 0.0 0.0 0:01.17 | xfsaild/sdb1 | | | My only way to fix this, is either rebooting the machine, unmounting | the volume | and mounting it back online. I've been rsyncing data twice between | this server and another | one. The rsync process takes about 30m-1hour. After the rsync | operation I see that | the xfsaild is stuck in D State and my Load is near 1.00. | | | I'v had no problem what-so-ever on centos 6.3 or early versions on | other servers. | | Any thoughts ? | Information, help would be much appreciated. | | Thanks in advance. | | Best regards, | | Svavar | | | | _______________________________________________ | CentOS mailing list | CentOS at centos.org | http://lists.centos.org/mailman/listinfo/centos | -- James A. Peltier Manager, IT Services - Research Computing Group Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpeltier at sfu.ca Website : http://www.sfu.ca/itservices “A successful person is one who can lay a solid foundation from the bricks others have thrown at them.” -David Brinkley via Luke Shaw