src/share/vm/gc/parallel/psPromotionManager.cpp

@@ -487,11 +487,11 @@
   // Attempt to CAS in the header.
   // This tests if the header is still the same as when
   // this started.  If it is the same (i.e., no forwarding
   // pointer has been installed), then this thread owns
   // it.
-  if (obj->cas_forward_to(obj, obj_mark)) {
+  if (obj->cas_forward_to(obj, obj_mark, memory_order_relaxed)) {
     // We won any races, we "own" this object.
     assert(obj == obj->forwardee(), "Sanity");
 
     _promotion_failed_info.register_copy_failure(obj->size());