[CentOS] CentOS 5 - problem with kernel/process: task blocked for more than 120 seconds.

Wed Apr 11 18:14:17 UTC 2012
Ali Corbin <ali.corbin at gmail.com>

We've been having the same problem on centos 5.8, with a 2.6.18-308.1.1.el5
kernel.  It locked up twice and became unresponsive and had to be
rebooted.  After it came back up we discovered a number of instances of the
'task blocked' message - happening several times a day.

We reflashed the raid controller's firmware last week, and the box has
stayed up since.  I was about to declare victory when I double-checked the
logs and found that we got three 'task blocked' messages overnight.  The
times of the messages match up with the times that we were transferring
large iso images to the box.