A number of tests, related to classloading stressing, fail on solaris-sparc fastdebug JVM with the following assertion:

# after -XX: or in .hotspotrc: SuppressErrorAt=/space.cpp:674]
#
# An unexpected error has been detected by Java Runtime Environment:
#
# Internal Error (/BUILD_AREA/jdk6.0/hotspot/src/share/vm/memory/space.cpp, 674 [ Patched ]), pid=18322, tid=3
#
# Java VM: Java HotSpot(TM) Client VM (1.6.0-rc-fastdebug-b62-debug interpreted mode)
#
# Error: assert(p == current_top || oop(p)->is_oop(),"p is not a block start")
# An error report file with more information is saved as hs_err_pid18322.log
#

Affected tests:
runtime/ParallelClassLoading/stress-redefine/holdLock/loadClass/dynamic-init/init-complex runtime/ParallelClassLoading/stress-redefine/holdLock/forName/dynamic-init/init-complex runtime/ParallelClassLoading/stress-redefine/holdLock/forName/init-complex runtime/ParallelClassLoading/stress-redefine/freeLock/forName/init-complex

How to reproduce:
     /home/ep155969/Vova/init-complex.sh