diff -r 74533f63b116 -r d2a62e0f25eb src/share/vm/runtime/deoptimization.hpp
--- a/src/share/vm/runtime/deoptimization.hpp	Wed Jun 27 15:23:36 2012 +0200
+++ b/src/share/vm/runtime/deoptimization.hpp	Thu Jun 28 17:03:16 2012 -0400
@@ -129,7 +129,7 @@
 
   // UnrollBlock is returned by fetch_unroll_info() to the deoptimization handler (blob).
   // This is only a CheapObj to ease debugging after a deopt failure
-  class UnrollBlock : public CHeapObj {
+  class UnrollBlock : public CHeapObj<mtCompiler> {
    private:
     int       _size_of_deoptimized_frame; // Size, in bytes, of current deoptimized frame
     int       _caller_adjustment;         // Adjustment, in bytes, to caller's SP by initial interpreted frame