--- a/hotspot/src/share/vm/opto/graphKit.cpp	Fri Nov 21 08:00:31 2014 -0800
+++ b/hotspot/src/share/vm/opto/graphKit.cpp	Thu Dec 11 13:11:53 2014 -0800
@@ -3813,7 +3813,7 @@
 
   // Smash zero into card
   if( !UseConcMarkSweepGC ) {
-    __ store(__ ctrl(), card_adr, zero, bt, adr_type, MemNode::release);
+    __ store(__ ctrl(), card_adr, zero, bt, adr_type, MemNode::unordered);
   } else {
     // Specialized path for CM store barrier
     __ storeCM(__ ctrl(), card_adr, zero, oop_store, adr_idx, bt, adr_type);