I installed the latest centosplus kernel, and it fixed it. ( <http://lists.centos.org/pipermail/centos/2013-March/132931.html> ) Looks like this problem will be fixed in kernel-2.6.32-358.5.1.el6 https://bugzilla.redhat.com/show_bug.cgi?id=921958 On 12.4.2013, at 10:38, Svavar Örn Eysteinsson wrote: > 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 > _______________________________________________ > xfs mailing list > xfs@xxxxxxxxxxx > http://oss.sgi.com/mailman/listinfo/xfs _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
