diff -r e72f7eecc96d -r 3a4805ad0005 src/share/vm/gc_implementation/g1/g1_globals.hpp
--- a/src/share/vm/gc_implementation/g1/g1_globals.hpp	Tue May 28 09:32:06 2013 +0200
+++ b/src/share/vm/gc_implementation/g1/g1_globals.hpp	Tue Jun 04 10:04:06 2013 -0700
@@ -329,7 +329,11 @@
                                                                             \
   develop(bool, G1EvacuationFailureALotDuringMixedGC, true,                 \
           "Force use of evacuation failure handling during mixed "          \
-          "evacuation pauses")
+          "evacuation pauses")                                              \
+                                                                            \
+  diagnostic(bool, G1VerifyRSetsDuringFullGC, false,                        \
+             "If true, perform verification of each heap region's "         \
+             "remembered set when verifying the heap during a full GC.")
 
 G1_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG)