diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c24224c90a5..3a10983b6c0 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2011-10-24  Pedro Alves  <pedro@codesourcery.com>
+
+	* infrun.c (handle_inferior_event): Add debug output for
+	TARGET_WAITKIND_NO_HISTORY.
+
 2011-10-24  Phil Muldoon  <pmuldoon@redhat.com>
 
 	* NEWS: Move set/show extended-prompt to "New Options". Expand
diff --git a/gdb/infrun.c b/gdb/infrun.c
index db6a5d140f8..da0b82009a3 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -3656,6 +3656,8 @@ handle_inferior_event (struct execution_control_state *ecs)
       break;
 
     case TARGET_WAITKIND_NO_HISTORY:
+      if (debug_infrun)
+        fprintf_unfiltered (gdb_stdlog, "infrun: TARGET_WAITKIND_NO_HISTORY\n");
       /* Reverse execution: target ran out of history info.  */
       stop_pc = regcache_read_pc (get_thread_regcache (ecs->ptid));
       print_no_history_reason ();