diff -r a7ef1a3b2644 -r 9af8f4023912 hotspot/src/share/vm/runtime/globals.hpp
--- a/hotspot/src/share/vm/runtime/globals.hpp	Thu Oct 02 12:01:08 2008 -0700
+++ b/hotspot/src/share/vm/runtime/globals.hpp	Mon Oct 06 13:16:35 2008 -0400
@@ -1825,6 +1825,9 @@
   diagnostic(bool, VerifyDuringGC, false,                                   \
           "Verify memory system during GC (between phases)")                \
                                                                             \
+  diagnostic(bool, GCParallelVerificationEnabled, true,                     \
+          "Enable parallel memory system verification")                     \
+                                                                            \
   diagnostic(bool, VerifyRememberedSets, false,                             \
           "Verify GC remembered sets")                                      \
                                                                             \