Mr. James W. Laferriere wrote:

quoted

quoted

INFO: task pdflush:393 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this 
message.

I see similar things now during resyncs and a few times during md RAID 
"checks", since kernel 2.6.25.6-55.fc9.x86_64 on md RAID6 and XFS.

See : http://marc.info/?l=linux-raid&m=121408071129399&w=2

Regards,

Richard