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Bug 643124 - SIGSEGV using Ctrl+Alt+Shift+LETTER for 2 shortucts
SIGSEGV using Ctrl+Alt+Shift+LETTER for 2 shortucts
Status: RESOLVED FIXED
Product: gnome-control-center
Classification: Core
Component: Keyboard
git master
Other Linux
: Normal critical
: ---
Assigned To: Control-Center Maintainers
Control-Center Maintainers
Depends on:
Blocks:
 
 
Reported: 2011-02-23 21:14 UTC by Luca Ferretti
Modified: 2011-02-24 04:37 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Luca Ferretti 2011-02-23 21:14:53 UTC 
I've the following segmentation fault doing the same:

 * go to keyboard > shortcut > a11y
 * (all shortcuts in this category are unassigned in my jhbuild sandbox)
 * set "zoom in magnifier" to Ctrl+Alt+Shift+L
 * set "zoom out magnifier" to Ctrl+Alt+Shift+K
 * CRASH!

the actual LETTER or binding seems irrilevant (for instance I tried starting from "toogle magnifier" to Ctrl+Alt+Shift+M).

Here is the stacktrace:

gnome-control-center:29202): GLib-GObject-CRITICAL **: Object class EggCellEditableEventBox doesn't implement property 'editing-canceled' from interface 'GtkCellEditable'

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff46e9426 in ?? () from /lib/libc.so.6
(gdb) t a a bt

+ Trace 226080

Thread 1 (Thread 0x7ffff7fc2920 (LWP 29202))

  • #0 ??
    from /lib/libc.so.6
  • #1 cb_check_for_uniqueness
    at keyboard-shortcuts.c line 1189
  • #2 gtk_tree_model_foreach_helper
    at gtktreemodel.c line 1867
  • #3 gtk_tree_model_foreach
    at gtktreemodel.c line 1914
  • #4 accel_edited_callback
    at keyboard-shortcuts.c line 1253
  • #5 g_closure_invoke
    at gclosure.c line 767
  • #6 signal_emit_unlocked_R
    at gsignal.c line 3252
  • #7 g_signal_emit_valist
    at gsignal.c line 2983
  • #8 g_signal_emit_by_name
    at gsignal.c line 3077
  • #9 grab_key_callback
    at eggcellrendererkeys.c line 479
  • #10 _gtk_marshal_BOOLEAN__BOXED
    at gtkmarshalers.c line 85
  • #11 g_closure_invoke
    at gclosure.c line 767
  • #12 signal_emit_unlocked_R
    at gsignal.c line 3252
  • #13 g_signal_emit_valist
    at gsignal.c line 2993
  • #14 g_signal_emit
    at gsignal.c line 3040
  • #15 gtk_widget_event_internal
    at gtkwidget.c line 6066
  • #16 gtk_window_propagate_key_event
    at gtkwindow.c line 5677
  • #17 gtk_window_key_press_event
    at gtkwindow.c line 5707
  • #18 _gtk_marshal_BOOLEAN__BOXED
    at gsignal.c line 3040
  • #15 gtk_widget_event_internal
    at gtkwidget.c line 6066
  • #16 gtk_window_propagate_key_event
    at gtkwindow.c line 5677
  • #17 gtk_window_key_press_event
    at gtkwindow.c line 5707
  • #18 _gtk_marshal_BOOLEAN__BOXED
  • #19 g_closure_invoke
    at gclosure.c line 767
  • #20 signal_emit_unlocked_R
    at gsignal.c line 3290
  • #21 g_signal_emit_valist
    at gsignal.c line 2993
  • #22 g_signal_emit
    at gsignal.c line 3040
  • #23 gtk_widget_event_internal
    at gtkwidget.c line 6066
  • #24 gtk_propagate_event
    at gtkmain.c line 2562
  • #25 gtk_main_do_event
    at gtkmain.c line 1863
  • #26 gdk_event_source_dispatch
    at gdkeventsource.c line 318
  • #27 g_main_dispatch
    at gmain.c line 2440
  • #28 g_main_context_dispatch
    at gmain.c line 3013
  • #29 g_main_context_iterate
    at gmain.c line 3091
  • #30 g_main_loop_run
    at gmain.c line 3299
  • #31 gtk_main
    at gtkmain.c line 1349
  • #32 g_application_run
    at gapplication.c line 1241
  • #33 main
    at control-center.c line 152 






Comment 1


Luca Ferretti





          2011-02-23 21:28:27 UTC
        



It seems related to Ctrl+Alt. I tried to change default shortcut for logout (Ctrl+Alt+Del) to something different, then re-use the default one. Same crash. In System category here is yet Ctrl+Alt+L for lock screen...






Comment 2


Bastien Nocera





          2011-02-24 04:37:30 UTC
        



The code was utterly crappy, and I reworked it (thought it worked enough when I rewrote the key handling code, but obviously didn't test this).

I also found a bug that made GConf backed keys just not work.

commit a13cf931a9bb49f612104b4e4fd08a6c439fc147
Author: Bastien Nocera <hadess@hadess.net>
Date:   Thu Feb 24 04:33:17 2011 +0000

    keyboard: Rework stupid conflict detection code
    
    https://bugzilla.gnome.org/show_bug.cgi?id=643124