--- old/src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp	2011-09-26 16:40:02.771739954 -0700
+++ new/src/share/vm/gc_implementation/g1/heapRegionRemSet.hpp	2011-09-26 16:40:02.573236931 -0700
@@ -395,8 +395,8 @@
   // Coarse table iteration fields:
 
   // Current region index;
-  int _coarse_cur_region_index;
-  int _coarse_cur_region_cur_card;
+  int    _coarse_cur_region_index;
+  size_t _coarse_cur_region_cur_card;
 
   bool coarse_has_next(size_t& card_index);