diff -r 81aa07130d30 -r c63b928b212b src/share/vm/gc_implementation/parallelScavenge/psPromotionManager.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psPromotionManager.cpp	Mon Oct 03 19:04:14 2011 -0400
+++ b/src/share/vm/gc_implementation/parallelScavenge/psPromotionManager.cpp	Mon Sep 12 16:09:50 2011 +0200
@@ -380,10 +380,10 @@
       // deallocate it, so we have to test.  If the deallocation fails,
       // overwrite with a filler object.
       if (new_obj_is_tenured) {
-        if (!_old_lab.unallocate_object(new_obj)) {
+        if (!_old_lab.unallocate_object((HeapWord*) new_obj, new_obj_size)) {
           CollectedHeap::fill_with_object((HeapWord*) new_obj, new_obj_size);
         }
-      } else if (!_young_lab.unallocate_object(new_obj)) {
+      } else if (!_young_lab.unallocate_object((HeapWord*) new_obj, new_obj_size)) {
         CollectedHeap::fill_with_object((HeapWord*) new_obj, new_obj_size);
       }