Index: MMTk/src/org/mmtk/utility/heap/FreeListPageResource.java
===================================================================
--- MMTk/src/org/mmtk/utility/heap/FreeListPageResource.java	(revision 14819)
+++ MMTk/src/org/mmtk/utility/heap/FreeListPageResource.java	(working copy)
@@ -216,6 +216,13 @@
         nextRegionStart += PAGES_IN_CHUNK;
        if (VM.VERIFY_ASSERTIONS) VM.assertions._assert(regionStart >= 0 && nextRegionStart < GenericFreeList.MAX_UNITS);
       completelyFreed = (freed == nextRegionStart - regionStart);
+
+      if (completelyFreed) {
+        freeContiguousChunk(start.plus(Conversions.pagesToBytes(regionStart)));
+        unlock();
+        return;
+      }
+
     }
     if (completelyFreed)
       freeContiguousChunk(Space.chunkAlign(first, true));