The following incident was reported, when runing JBoss application server on
Red Hat Enterprise Linux Server release 5.5

# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (gcTaskThread.cpp:60), pid=9506, tid=1097435456
# Error: guarantee(index < GCTaskTimeStampEntries,"increase GCTaskTimeStampEntries")
#
# JRE version: 6.0_22-b04
# Java VM: Java HotSpot(TM) 64-Bit Server VM (17.1-b03 mixed mode linux-amd64 )


Process uptime was more than 9 days:

time: Fri Jan 21 11:44:28 2011
elapsed time: 794035 seconds

The flag '-XX:+PrintGCTaskTimeStamps' was used.

It appears that the default value for 'GCTaskTimeStampEntries' was
configured too low, and should be considered to be increased.