--- a/src/share/vm/opto/node.cpp	Mon Jun 30 17:04:59 2008 -0700
+++ b/src/share/vm/opto/node.cpp	Tue Jul 01 11:59:44 2008 -0700
@@ -1387,7 +1387,7 @@
   }
 #ifdef ASSERT
   // Search along debug_orig edges last:
-  for (Node* orig = n->debug_orig(); orig != NULL; orig = orig->debug_orig()) {
+  for (Node* orig = n->debug_orig(); orig != NULL && n != orig; orig = orig->debug_orig()) {
     if (NotANode(orig))  break;
     find_recur( result, orig, idx, only_ctrl, old_space, new_space );
   }