--- old/src/share/vm/opto/parse3.cpp	2014-11-21 12:09:26.716614026 -0500
+++ new/src/share/vm/opto/parse3.cpp	2014-11-21 12:09:26.506632623 -0500
@@ -283,7 +283,9 @@
   // If reference is volatile, prevent following memory ops from
   // floating down past the volatile write.  Also prevents commoning
   // another volatile read.
-  if (is_vol)  insert_mem_bar(Op_MemBarRelease);
+  if (is_vol) {
+    insert_mem_bar(UseBarriersForVolatile ? Op_MemBarRelease : Op_MemBarCPUOrder);
+  }
 
   // Compute address and memory type.
   int offset = field->offset_in_bytes();
@@ -325,7 +327,7 @@
   if (is_vol) {
     // If not multiple copy atomic, we do the MemBarVolatile before the load.
     if (!support_IRIW_for_not_multiple_copy_atomic_cpu) {
-      insert_mem_bar(Op_MemBarVolatile); // Use fat membar
+      insert_mem_bar(UseBarriersForVolatile ? Op_MemBarVolatile : Op_MemBarCPUOrder); // Use fat membar
     }
     // Remember we wrote a volatile field.
     // For not multiple copy atomic cpu (ppc64) a barrier should be issued