diff -r 7a7afd351444 -r 377345fb5fb5 hotspot/src/share/vm/memory/defNewGeneration.cpp
--- a/hotspot/src/share/vm/memory/defNewGeneration.cpp	Wed Jul 06 12:22:29 2011 -0700
+++ b/hotspot/src/share/vm/memory/defNewGeneration.cpp	Wed Jul 06 12:28:07 2011 -0700
@@ -905,6 +905,10 @@
     to()->check_mangled_unused_area_complete();
   }
 
+  if (!CleanChunkPoolAsync) {
+    Chunk::clean_chunk_pool();
+  }
+
   // update the generation and space performance counters
   update_counters();
   gch->collector_policy()->counters()->update_counters();