diff -r 642c68c75db9 -r 5cf771a79037 src/cpu/x86/vm/frame_x86.inline.hpp
--- a/src/cpu/x86/vm/frame_x86.inline.hpp	Sat Jun 04 10:36:22 2011 -0700
+++ b/src/cpu/x86/vm/frame_x86.inline.hpp	Wed Jun 08 17:04:06 2011 -0700
@@ -45,6 +45,7 @@
   _pc = pc;
   assert(pc != NULL, "no pc?");
   _cb = CodeCache::find_blob(pc);
+  adjust_unextended_sp();
 
   address original_pc = nmethod::get_deopt_original_pc(this);
   if (original_pc != NULL) {
@@ -92,6 +93,7 @@
   // assert(_pc != NULL, "no pc?");
 
   _cb = CodeCache::find_blob(_pc);
+  adjust_unextended_sp();
 
   address original_pc = nmethod::get_deopt_original_pc(this);
   if (original_pc != NULL) {