J2SE Version (please include all output from java -version flag):
  java version "1.5.0_08-ea"
  Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_08-ea-b01)
  Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_08-ea-b01, mixed mode)

Does this problem occur on J2SE 1.4.x or 5.0.x ?
  Yes 5.0.U7 and 5.0U8 build01


Operating System Configuration Information (be specific):
  Windows 2003 Server

Hardware Configuration Information (be specific):
  V40Z system (Opteron 4p/8c), 16Gs of DDR400

Bug Description:
  Use of -XX:+UseBiasedLocking gives an error

#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000008339436, pid=872,
d=2324
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0_08-ea-b01 mixed mode)
# Problematic frame:
# V [jvm.dll+0x339436]
#
# An error report file with more information is saved as hs_err_pid872.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp


Steps to Reproduce (be specific):
   java -XX:+UseBiasedLocking
and check error log file.