diff -r 82a980778b92 -r 58054a18d735 src/share/vm/gc_implementation/g1/g1RemSet.cpp
--- a/src/share/vm/gc_implementation/g1/g1RemSet.cpp	Thu Feb 05 11:42:10 2009 -0800
+++ b/src/share/vm/gc_implementation/g1/g1RemSet.cpp	Fri Feb 06 01:38:50 2009 +0300
@@ -572,6 +572,9 @@
   }
   guarantee( _cards_scanned == NULL, "invariant" );
   _cards_scanned = NEW_C_HEAP_ARRAY(size_t, n_workers());
+  for (uint i = 0; i < n_workers(); ++i) {
+    _cards_scanned[i] = 0;
+  }
   _total_cards_scanned = 0;
 }