Issue

• JVM Crash due to ParMarkBitMap::mark_obj in HotSpot JDK
• The following is seen in the crash file:

# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f3f2590b44f, pid=3277, tid=139909094418176
#
# JRE version: 7.0_06-b24
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.2-b09 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.so+0x75744f]  ParMarkBitMap::mark_obj(HeapWord*, unsigned long)+0xdf
#
# Core dump written. Default location: //core or core.3277 (max size 1 kB). To ensure a full core dump, try "ulimit -c unlimited" before starting Java again
#
[...]
---------------  T H R E A D  ---------------

Current thread (0x0000000000620800):  GCTaskThread [stack: 0x00007f3f1fcfa000,0x00007f3f1fdfb000] [id=3283]
[...]
Stack: [0x00007f3f1fcfa000,0x00007f3f1fdfb000],  sp=0x00007f3f1fdf9c20,  free space=1023k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x75744f]  ParMarkBitMap::mark_obj(HeapWord*, unsigned long)+0xdf
V  [libjvm.so+0x79eb3e]  PSParallelCompact::MarkAndPushClosure::do_oop(oopDesc**)+0xce
V  [libjvm.so+0x5a1a60]  JNIHandles::oops_do(OopClosure*)+0x20
V  [libjvm.so+0x77a1b9]  MarkFromRootsTask::do_it(GCTaskManager*, unsigned int)+0xd9
V  [libjvm.so+0x4b74c0]  GCTaskThread::run()+0x130
V  [libjvm.so+0x746a00]  java_start(Thread*)+0x100
[...]