diff -r 3a86a8dcf27c -r 424f9bfe6b96 src/share/vm/opto/locknode.hpp
--- a/src/share/vm/opto/locknode.hpp	Tue Nov 25 13:14:07 2008 -0800
+++ b/src/share/vm/opto/locknode.hpp	Wed Dec 03 13:41:37 2008 -0800
@@ -36,7 +36,7 @@
   virtual const RegMask &in_RegMask(uint) const;
   virtual const RegMask &out_RegMask() const;
   virtual uint size_of() const;
-  virtual uint hash() const { return Node::hash() + _slot; }
+  virtual uint hash() const;
   virtual uint cmp( const Node &n ) const;
   virtual const class Type *bottom_type() const { return TypeRawPtr::BOTTOM; }
   virtual uint ideal_reg() const { return Op_RegP; }