BUG soft lockup - CPU#3 stuck for 10s! on CentOS 5

I noticed that the under intense CPU load on CentOS 5.4, I've got this bug BUG soft lockup - CPU#3 stuck for 10s! on CentOS 5.

This particular bug have been mentioned at https://bugzilla.redhat.com/show_bug.cgi?id=484590

There are mentioned solution such as upgrading the kernel and changing the softlockup_thresh and softlockup_panic parameters at /proc/sys/kernel/softlockup_thresh and /proc/sys/kernel/softlockup_panic

I increase the /proc/sys/kernel/softlockup_thresh from 10 to 60. The original figure may be too aggressive.

# echo 30 > /proc/sys/kernel/softlockup_thresh

Check that the  /proc/sys/kernel/softlockup_panic = 0
# less  /proc/sys/kernel/softlockup_panic

Add this line to /etc/sysctl.conf (takes effect on next reboot):

kernel.softlockup_thresh=30

For more information, see

1. Why do I see "cpu soft lockup" messages in Red Hat Enterprise Linux on a Unisys E7600 or NEC 5800 Express with 96 cores?