diff -r 23b9a8d315fc -r 3fc996d4edd2 src/share/vm/gc_implementation/g1/g1MMUTracker.hpp
--- a/src/share/vm/gc_implementation/g1/g1MMUTracker.hpp	Thu Nov 19 10:19:19 2009 -0800
+++ b/src/share/vm/gc_implementation/g1/g1MMUTracker.hpp	Thu Nov 19 13:43:25 2009 -0800
@@ -99,7 +99,10 @@
   // The array is of fixed size and I don't think we'll need more than
   // two or three entries with the current behaviour of G1 pauses.
   // If the array is full, an easy fix is to look for the pauses with
-  // the shortest gap between them and concolidate them.
+  // the shortest gap between them and consolidate them.
+  // For now, we have taken the expedient alternative of forgetting
+  // the oldest entry in the event that +G1ForgetfulMMUTracker, thus
+  // potentially violating MMU specs for some time thereafter.
 
   G1MMUTrackerQueueElem _array[QueueLength];
   int                   _head_index;