diff -r d4c1fbc3de95 -r 167b70ff3abc src/cpu/x86/vm/frame_x86.inline.hpp
--- a/src/cpu/x86/vm/frame_x86.inline.hpp	Fri May 06 12:12:29 2011 -0700
+++ b/src/cpu/x86/vm/frame_x86.inline.hpp	Fri May 06 16:33:13 2011 -0700
@@ -62,6 +62,7 @@
   _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) {