Test : nsk/serial/Unsafe/allocateMemory/allocmem001
TestBase : /net/sqesvr.eng/export/vsn/VM/merlin/testbase/testbase_nsk
Mode : -d64 -server -Xcomp
Platforms : solsparc 5.8
JAVA_HOME : /net/sqesvr.eng/export/vsn/VM/merlin/weekahead/jdk/latest/solsparc

Steps to reproduce
1) cd /net/sqesvr.eng/export/vsn/GammaBase/Bugs/{Bugid}
2) ksh doit

Output:
java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b65)
Java HotSpot(TM) 64-Bit Server VM (build 20010524124025.jcoomes.baseline-debug, compiled mode)
#
# HotSpot Virtual Machine Error, Internal Error
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (20010524124025.jcoomes.baseline-debug compiled mode)
#
# Fatal: free: size field of object #1008cf9e8 was overwritten (18446744071562067968)
#
# Error ID: /net/balvenie.eng/export/imgr_home/ws/20010524124025.jcoomes.baseline/src/share/vm/runtime/os.cpp, 298 [ Patched ]
#
# Problematic Thread: prio=5 tid=0x100126078 nid=0x1 runnable
#
Dumping core....

NOTE: Test Passes in 32-bit mode.
nsk/serial/Unsafe/allocateMemory/allocmem001