AggressiveOpts parameter cause ATG BigApps test unexpected error in 5.0u11 JVM

While running Bigapp-ATG test with jdk 5.0u8,u9,u10,u11 on sparc/x86 Solaris, x86 Linux, x86 Windows the test run in to error and it hang the whole test ONLY if AggressiveOpts parameter used.

/bt/atgrun.2088.-server/home
run.atg: Starting the Dynamo Server in the background.
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# SIGSEGV (0xb) at pc=0xfea09118, pid=2106, tid=7
#
# Java VM: Java HotSpot(TM) Server VM (1.5.0_11-b03 mixed mode)
# Problematic frame:
# V [libjvm.so+0x209118]
#
# An error report file with more information is saved as hs_err_pid2106.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#

JDK : JDK 5.0u8b03, 5.0u10b02, 5.0u11b03
Platform[s] : x86 Windows XP, x86 Solaris 10, Sparc Solaris 10, x86 RHEL 4.0AS
switch/Mode : -server -XX:+AggressiveOpts
testbase : /net/urtsvr.ireland/export/bigapps

Results for all platforms can be accessed:

http://latte.ireland/results/1.5.0_11/Build03/bigapps/issue/

The problem can be easyly reproduced:

1. Install Tiger JDK, export JAVA_HOME

2. ln -s /net/urtsvr.ireland/export/bigapps /bs

3. export JAVA_ARGS="-XX:+AggressiveOpts"

4. cd /bs/tests/

5. ./runatg.ksh -server

6. Find logs in /bt directory.

Please use the machine and logging details from CR's comments.