diff -r a00567c82f02 -r b2a00dd3117c src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp	Wed Jun 30 11:52:10 2010 -0400
+++ b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp	Thu Jul 01 21:40:45 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -1297,11 +1297,8 @@
   T heap_oop = oopDesc::load_heap_oop(p);
   if (!oopDesc::is_null(heap_oop)) {
     oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
-    if (mark_bitmap()->is_unmarked(obj)) {
-      if (mark_obj(obj)) {
-        // This thread marked the object and owns the subsequent processing of it.
-        cm->save_for_scanning(obj);
-      }
+    if (mark_bitmap()->is_unmarked(obj) && mark_obj(obj)) {
+      cm->push(obj);
     }
   }
 }