--- old/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	2014-12-09 14:42:25.831226000 -0500
+++ new/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	2014-12-09 14:42:22.848280000 -0500
@@ -6388,7 +6388,8 @@
 CMSBitMap::CMSBitMap(int shifter, int mutex_rank, const char* mutex_name):
   _bm(),
   _shifter(shifter),
-  _lock(mutex_rank >= 0 ? new Mutex(mutex_rank, mutex_name, true) : NULL)
+  _lock(mutex_rank >= 0 ? new Mutex(mutex_rank, mutex_name, true ,
+                                    Monitor::_safepoint_check_sometimes) : NULL)
 {
   _bmStartWord = 0;
   _bmWordSize  = 0;