diff -r a837fa3d3f86 -r ef57c43512d6 src/share/vm/services/diagnosticArgument.cpp
--- a/src/share/vm/services/diagnosticArgument.cpp	Thu Jun 13 11:16:38 2013 -0700
+++ b/src/share/vm/services/diagnosticArgument.cpp	Thu Jun 13 22:02:40 2013 -0700
@@ -247,7 +247,7 @@
   } else {
     _value._time = 0;
     _value._nanotime = 0;
-    strcmp(_value._unit, "ns");
+    strcpy(_value._unit, "ns");
   }
 }