Index: execnt.c
===================================================================
--- execnt.c	(revision 55272)
+++ execnt.c	(working copy)
@@ -847,7 +847,11 @@
         time->system = filetime_seconds( kernel   );
         time->user   = filetime_seconds( user     );
         time->start  = filetime_dt     ( creation );
-        time->end    = filetime_dt     ( exit     );
+        time->end    = filetime_dt     ( exit );
+        if (time->end < 0)
+        {
+            time->end = time->start;
+        }
     }
 }