diff -r b2ee5dc63353 -r 9acbfe04b5c3 src/cpu/x86/vm/c1_FrameMap_x86.cpp
--- a/src/cpu/x86/vm/c1_FrameMap_x86.cpp	Wed Oct 23 12:40:23 2013 +0200
+++ b/src/cpu/x86/vm/c1_FrameMap_x86.cpp	Wed Oct 23 11:15:24 2013 -0700
@@ -52,6 +52,8 @@
 #endif // _LP64
     } else if (type == T_OBJECT || type == T_ARRAY) {
       opr = as_oop_opr(reg);
+    } else if (type == T_METADATA) {
+      opr = as_metadata_opr(reg);
     } else {
       opr = as_opr(reg);
     }