message hung_task

I created a new ext4 filesystem om my 3.63TB raid5 system. NOw it shows a message on my command prompt every 120 sconds..

[ 1437.680513] INFO: task mkfs.ext4"6560 blocked for more than 120 seconds.
[ 14.37.680586] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

What to do?

They problem solved itself. It had something to do with the sync of the raid volume I think.. After the raid system reported clean the messages did not show up anymore. ***SOLVED***