diff -r f3a2bc065255 -r 647b7d0efb88 hotspot/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp
--- a/hotspot/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp	Thu Dec 18 13:30:00 2014 +0000
+++ b/hotspot/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp	Wed Dec 17 22:32:44 2014 -0500
@@ -195,7 +195,7 @@
 
     COMPILER2_PRESENT(DerivedPointerTable::clear());
 
-    ref_processor()->enable_discovery(true /*verify_disabled*/, true /*verify_no_refs*/);
+    ref_processor()->enable_discovery();
     ref_processor()->setup_policy(clear_all_softrefs);
 
     mark_sweep_phase1(clear_all_softrefs);