diff -r 2b1de1db9a9d -r 5cfd8d19e546 src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp	Wed Jan 21 13:40:10 2009 -0800
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp	Mon Jan 26 12:47:21 2009 -0800
@@ -595,7 +595,7 @@
   size_t        _ser_kac_preclean_ovflw;
   size_t        _ser_kac_ovflw;
   size_t        _par_kac_ovflw;
-  NOT_PRODUCT(size_t _num_par_pushes;)
+  NOT_PRODUCT(ssize_t _num_par_pushes;)
 
   // ("Weak") Reference processing support
   ReferenceProcessor*            _ref_processor;