--- a/src/share/vm/gc_implementation/g1/heapRegionSet.inline.hpp	Mon Mar 04 16:46:37 2013 +0100
+++ b/src/share/vm/gc_implementation/g1/heapRegionSet.inline.hpp	Tue Mar 05 18:53:26 2013 +0100
@@ -62,7 +62,12 @@
          hrs_err_msg("[%s] region's used bytes: "SIZE_FORMAT" "
                      "should be <= used bytes: "SIZE_FORMAT,
                      name(), used_bytes, _total_used_bytes));
+
+  //printf("[%s] region's used bytes: "SIZE_FORMAT" "
+  //                     "should be <= used bytes: "SIZE_FORMAT"\n",
+  //                     name(), used_bytes, _total_used_bytes);
   _total_used_bytes -= used_bytes;
+  //printf("TOTAL USED BYTES 4 %lu\n", _total_used_bytes);
 }
 
 inline void HeapRegionSetBase::remove_internal(HeapRegion* hr) {