--- a/src/share/vm/runtime/deoptimization.cpp	Fri Dec 14 10:20:54 2012 +0100
+++ b/src/share/vm/runtime/deoptimization.cpp	Fri Dec 14 14:35:13 2012 +0100
@@ -749,7 +749,7 @@
         guarantee(false, "wrong number of expression stack elements during deopt");
       }
       VerifyOopClosure verify;
-      iframe->oops_interpreted_do(&verify, &rm, false);
+      iframe->oops_interpreted_do(&verify, NULL, &rm, false);
       callee_size_of_parameters = mh->size_of_parameters();
       callee_max_locals = mh->max_locals();
       is_top_frame = false;
@@ -1284,8 +1284,8 @@
   nmethodLocker nl(fr.pc());
 
   // Log a message
-  Events::log_deopt_message(thread, "Uncommon trap %d fr.pc " INTPTR_FORMAT,
-                            trap_request, fr.pc());
+  Events::log(thread, "Uncommon trap: trap_request=" PTR32_FORMAT " fr.pc=" INTPTR_FORMAT,
+              trap_request, fr.pc());
 
   {
     ResourceMark rm;
@@ -1346,6 +1346,11 @@
     MethodData* trap_mdo =
       get_method_data(thread, trap_method, create_if_missing);
 
+    // Log a message
+    Events::log_deopt_message(thread, "Uncommon trap: reason=%s action=%s pc=" INTPTR_FORMAT " method=%s @ %d",
+                              trap_reason_name(reason), trap_action_name(action), fr.pc(),
+                              trap_method->name_and_sig_as_C_string(), trap_bci);
+
     // Print a bunch of diagnostics, if requested.
     if (TraceDeoptimization || LogCompilation) {
       ResourceMark rm;