diff -r 9c2ecc2ffb12 -r 1fdb98a17101 src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.cpp	Fri Jul 11 01:14:44 2008 -0700
+++ b/src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.cpp	Sat Jul 19 17:38:22 2008 -0400
@@ -61,6 +61,8 @@
   if (_virtual_space != NULL) {
     delete _virtual_space;
     _virtual_space = NULL;
+    // Release memory reserved in the space.
+    rs.release();
   }
   return false;
 }