diff -r c77e8f982901 -r fd5d4527cdf5 src/share/vm/runtime/thread.cpp
--- a/src/share/vm/runtime/thread.cpp	Wed Sep 15 20:25:37 2010 -0700
+++ b/src/share/vm/runtime/thread.cpp	Tue Sep 21 13:38:35 2010 -0700
@@ -1183,6 +1183,7 @@
   set_vframe_array_last(NULL);
   set_deferred_locals(NULL);
   set_deopt_mark(NULL);
+  set_deopt_nmethod(NULL);
   clear_must_deopt_id();
   set_monitor_chunks(NULL);
   set_next(NULL);