diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index fd4e37f3925..48f5ad04001 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,16 @@
+2013-01-22  Pedro Alves  <palves@redhat.com>
+
+	* annotate.c: Include "inferior.h".
+	(frames_invalid_emitted)
+	(breakpoints_invalid_emitted): New globals.
+	(async_background_execution_p): New function.
+	(annotate_breakpoints_changed, annotate_frames_invalid): Skip
+	emitting the annotation if it has already been emitted.
+	(annotate_display_prompt): New function.
+	* annotate.h (annotate_display_prompt): New declaration.
+	* event-top.c: Include annotate.h.
+	(display_gdb_prompt): Call annotate_display_prompt.
+
 2013-01-22  Pedro Alves  <palves@redhat.com>
 
 	* annotate.c (ignore_count_changed): Delete.
diff --git a/gdb/annotate.c b/gdb/annotate.c
index 25f765986c6..387467b1ad9 100644
--- a/gdb/annotate.c
+++ b/gdb/annotate.c
@@ -23,6 +23,7 @@
 #include "gdbtypes.h"
 #include "breakpoint.h"
 #include "observer.h"
+#include "inferior.h"
 
 
 /* Prototypes for local functions.  */
@@ -37,6 +38,23 @@ static void breakpoint_changed (struct breakpoint *b);
 void (*deprecated_annotate_signalled_hook) (void);
 void (*deprecated_annotate_signal_hook) (void);
 
+/* Booleans indicating whether we've emitted certain notifications.
+   Used to suppress useless repeated notifications until the next time
+   we're ready to accept more commands.  Reset whenever a prompt is
+   displayed.  */
+static int frames_invalid_emitted;
+static int breakpoints_invalid_emitted;
+
+/* True if the target can async, and a synchronous execution command
+   is not in progress.  If true, input is accepted, so don't suppress
+   annotations.  */
+
+static int
+async_background_execution_p (void)
+{
+  return (target_can_async_p () && !sync_execution);
+}
+
 static void
 print_value_flags (struct type *t)
 {
@@ -49,10 +67,13 @@ print_value_flags (struct type *t)
 void
 annotate_breakpoints_changed (void)
 {
-  if (annotation_level == 2)
+  if (annotation_level == 2
+      && (!breakpoints_invalid_emitted
+	  || async_background_execution_p ()))
     {
       target_terminal_ours ();
       printf_unfiltered (("\n\032\032breakpoints-invalid\n"));
+      breakpoints_invalid_emitted = 1;
     }
 }
 
@@ -184,10 +205,13 @@ annotate_breakpoints_table_end (void)
 void
 annotate_frames_invalid (void)
 {
-  if (annotation_level == 2)
+  if (annotation_level == 2
+      && (!frames_invalid_emitted
+	  || async_background_execution_p ()))
     {
       target_terminal_ours ();
       printf_unfiltered (("\n\032\032frames-invalid\n"));
+      frames_invalid_emitted = 1;
     }
 }
 
@@ -537,6 +561,17 @@ annotate_array_section_end (void)
     printf_filtered (("\n\032\032array-section-end\n"));
 }
 
+/* Called when GDB is about to display the prompt.  Used to reset
+   annotation suppression whenever we're ready to accept new
+   frontend/user commands.  */
+
+void
+annotate_display_prompt (void)
+{
+  frames_invalid_emitted = 0;
+  breakpoints_invalid_emitted = 0;
+}
+
 static void
 breakpoint_changed (struct breakpoint *b)
 {
diff --git a/gdb/annotate.h b/gdb/annotate.h
index ea8ad15c8f7..73a3098b22c 100644
--- a/gdb/annotate.h
+++ b/gdb/annotate.h
@@ -44,6 +44,8 @@ extern void annotate_frames_invalid (void);
 extern void annotate_new_thread (void);
 extern void annotate_thread_changed (void);
 
+extern void annotate_display_prompt (void);
+
 struct type;
 
 extern void annotate_field_begin (struct type *);
diff --git a/gdb/event-top.c b/gdb/event-top.c
index 1b75bbd806c..9f415b2326b 100644
--- a/gdb/event-top.c
+++ b/gdb/event-top.c
@@ -35,6 +35,7 @@
 #include "observer.h"
 #include "continuations.h"
 #include "gdbcmd.h"		/* for dont_repeat() */
+#include "annotate.h"
 
 /* readline include files.  */
 #include "readline/readline.h"
@@ -231,6 +232,8 @@ display_gdb_prompt (char *new_prompt)
   char *actual_gdb_prompt = NULL;
   struct cleanup *old_chain;
 
+  annotate_display_prompt ();
+
   /* Reset the nesting depth used when trace-commands is set.  */
   reset_command_nest_depth ();