diff -U3 -r gdb-6.6/gdb/cli/cli-cmds.c /usr/local/build/gdb-6.6/gdb/cli/cli-cmds.c
--- gdb-6.6/gdb/cli/cli-cmds.c	2006-10-27 15:23:20.000000000 -0700
+++ /usr/local/build/gdb-6.6/gdb/cli/cli-cmds.c	2007-03-30 00:58:40.000000000 -0700
@@ -178,6 +178,10 @@
 
 struct cmd_list_element *showchecklist;
 
+struct cmd_list_element *setdisplaylist;
+
+struct cmd_list_element *showdisplaylist;
+
 /* Command tracing state.  */
 
 int source_verbose = 0;
@@ -1108,6 +1112,8 @@
   showprintlist = NULL;
   setchecklist = NULL;
   showchecklist = NULL;
+  setdisplaylist = NULL;
+  showdisplaylist = NULL;
 }
 
 static void
diff -U3 -r gdb-6.6/gdb/cli/cli-cmds.h /usr/local/build/gdb-6.6/gdb/cli/cli-cmds.h
--- gdb-6.6/gdb/cli/cli-cmds.h	2006-10-27 15:23:20.000000000 -0700
+++ /usr/local/build/gdb-6.6/gdb/cli/cli-cmds.h	2007-03-30 00:57:39.000000000 -0700
@@ -103,6 +103,10 @@
 
 extern struct cmd_list_element *showchecklist;
 
+extern struct cmd_list_element *setdisplaylist;
+
+extern struct cmd_list_element *showdisplaylist;
+
 /* Exported to gdb/top.c */
 
 void init_cmd_lists (void);
diff -U3 -r gdb-6.6/gdb/doc/gdb.texinfo /usr/local/build/gdb-6.6/gdb/doc/gdb.texinfo
--- gdb-6.6/gdb/doc/gdb.texinfo	2006-11-14 13:53:59.000000000 -0800
+++ /usr/local/build/gdb-6.6/gdb/doc/gdb.texinfo	2007-04-06 03:05:16.000000000 -0700
@@ -5391,6 +5391,7 @@
 * Output Formats::              Output formats
 * Memory::                      Examining memory
 * Auto Display::                Automatic display
+* Display Settings::            Display settings
 * Print Settings::              Print settings
 * Value History::               Value history
 * Convenience Vars::            Convenience variables
@@ -5963,6 +5964,32 @@
 automatically.  The next time your program stops where @code{last_char}
 is meaningful, you can enable the display expression once again.
 
+@node Display Settings
+@section Display settings
+
+@cindex display options
+@cindex display settings
+@value{GDBN} provides the following ways to control how auto-displays are
+handled.
+
+@table @code
+@kindex set display
+@item set display strict
+@itemx set display strict on
+@cindex disable/permit auto-displays on memory access error
+@value{GDBN} automatically disables any auto-display which encounters a
+memory access error during display. The default is @code{on}.
+
+@item set display strict off
+Do not disable any auto-display which encounters a memory access error,
+but instead print a general error message rather than displaying a
+non-accessible value.
+
+@kindex show display
+@item show display strict
+Show whether or not auto-displays are disabled on memory access error.
+@end table
+
 @node Print Settings
 @section Print settings
 
diff -U3 -r gdb-6.6/gdb/gdbcmd.h /usr/local/build/gdb-6.6/gdb/gdbcmd.h
--- gdb-6.6/gdb/gdbcmd.h	2006-10-27 15:23:20.000000000 -0700
+++ /usr/local/build/gdb-6.6/gdb/gdbcmd.h	2007-03-30 00:56:48.000000000 -0700
@@ -122,6 +122,10 @@
 
 extern struct cmd_list_element *showchecklist;
 
+extern struct cmd_list_element *setdisplaylist;
+
+extern struct cmd_list_element *showdisplaylist;
+
 extern void execute_command (char *, int);
 
 enum command_control_type execute_control_command (struct command_line *);
diff -U3 -r gdb-6.6/gdb/printcmd.c /usr/local/build/gdb-6.6/gdb/printcmd.c
--- gdb-6.6/gdb/printcmd.c	2006-10-17 13:17:44.000000000 -0700
+++ /usr/local/build/gdb-6.6/gdb/printcmd.c	2007-03-30 03:24:16.000000000 -0700
@@ -43,6 +43,7 @@
 #include "gdb_assert.h"
 #include "block.h"
 #include "disasm.h"
+#include "exceptions.h"		/* to handle auto-display access errors */
 
 #ifdef TUI
 #include "tui/tui.h"		/* For tui_active et.al.   */
@@ -104,6 +105,32 @@
 		    value);
 }
 
+/* Enable disabling of an auto-display which cannot be displayed
+   due to a memory error. */
+static int display_strict = 0;
+static void
+show_display_strict (struct ui_file *file, int from_tty,
+			    struct cmd_list_element *c, const char *value)
+{
+  fprintf_filtered (file, _("\
+Disabling of display on memory access error is %s.\n"),
+		    value);
+}
+
+static void
+set_display (char *arg, int from_tty)
+{
+  printf_unfiltered (
+     "\"set display\" must be followed by the name of a display subcommand.\n");
+  help_list (setdisplaylist, "set display ", -1, gdb_stdout);
+}
+
+static void
+show_display (char *args, int from_tty)
+{
+  cmd_show_list (showdisplaylist, from_tty, "");
+}
+
 /* Number of auto-display expression currently being displayed.
    So that we can disable it if we get an error or a signal within it.
    -1 when not doing one.  */
@@ -148,7 +175,7 @@
 
 /* Prototypes for local functions. */
 
-static void do_one_display (struct display *);
+static int do_one_display (void *);
 
 
 /* Decode a format specification.  *STRING_PTR should point to it.
@@ -1468,20 +1495,21 @@
    Do nothing if the display cannot be printed in the current context,
    or if the display is disabled. */
 
-static void
-do_one_display (struct display *d)
+static int
+do_one_display (void *p)
 {
+  struct display *d = p;
   int within_current_scope;
 
   if (d->enabled_p == 0)
-    return;
+    return 0;
 
   if (d->block)
     within_current_scope = contained_in (get_selected_block (0), d->block);
   else
     within_current_scope = 1;
   if (!within_current_scope)
-    return;
+    return 0;
 
   current_display_number = d->number;
 
@@ -1548,6 +1576,8 @@
 
   gdb_flush (gdb_stdout);
   current_display_number = -1;
+
+  return 0;
 }
 
 /* Display all of the values on the auto-display chain which can be
@@ -1559,7 +1589,7 @@
   struct display *d;
 
   for (d = display_chain; d; d = d->next)
-    do_one_display (d);
+    catch_errors (do_one_display, d, "", RETURN_MASK_ALL);
 }
 
 /* Delete the auto-display which we were in the process of displaying.
@@ -1582,6 +1612,7 @@
 void
 disable_current_display (void)
 {
+  if (display_strict == 0) return;
   if (current_display_number >= 0)
     {
       disable_display (current_display_number);
@@ -2165,6 +2196,23 @@
 No argument means cancel all automatic-display expressions.\n\
 Do \"info display\" to see current list of code numbers."), &deletelist);
 
+  add_prefix_cmd ("display", no_class, set_display,
+		  _("Generic command for setting how auto-displays work."),
+		  &setdisplaylist, "set display ", 0, &setlist);
+
+  add_prefix_cmd ("display", no_class, show_display,
+		  _("Generic command for showing auto-display settings."),
+		  &showdisplaylist, "show display ", 0, &showlist);
+
+  add_setshow_boolean_cmd ("strict", class_vars, 
+			   &display_strict, _("\
+Set disabling of display on memory access error."), _("\
+Show disabling of display on memory access error."),
+			   NULL,
+			   NULL,
+			   show_display_strict,
+			   &setdisplaylist, &showdisplaylist);
+
   add_com ("printf", class_vars, printf_command, _("\
 printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\
 This is useful for formatted output in user-defined commands."));
@@ -2267,4 +2315,5 @@
   examine_w_type = init_type (TYPE_CODE_INT, 4, 0, "examine_w_type", NULL);
   examine_g_type = init_type (TYPE_CODE_INT, 8, 0, "examine_g_type", NULL);
 
+  display_strict = 1;
 }