User-Agent: Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.7 (like Gecko) Build Identifier: Sometimes, when I try to access right click menu, I get crash I'm using xfdesktop r26094 There's backtrace: There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu"... Using host libthread_db library "/lib/libthread_db.so.1". (gdb) run Starting program: /usr/bin/xfdesktop [Thread debugging using libthread_db enabled] [New Thread 47668733429856 (LWP 5504)] DBG[xfdesktop-common.c:153] xfce_desktop_get_menufile(): checking /home/desowin/.config/menus/xfce-applications.menu DBG[xfdesktop-common.c:164] xfce_desktop_get_menufile(): checking /etc/xdg/menus/xfce-applications.menu DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu (xfdesktop:5504): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed ** (xfdesktop:5504): WARNING **: Attempt to create new monitors without destroying the old. DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu (xfdesktop:5504): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed ** (xfdesktop:5504): WARNING **: Attempt to create new monitors without destroying the old. DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu (xfdesktop:5504): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed ** (xfdesktop:5504): WARNING **: Attempt to create new monitors without destroying the old. DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu (xfdesktop:5504): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed ** (xfdesktop:5504): WARNING **: Attempt to create new monitors without destroying the old. DBG[desktop-menu.c:303] _generate_menu(): menu file name is /etc/xdg/menus/xfce-applications.menu (xfdesktop:5504): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `GObject' (xfdesktop:5504): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion `G_IS_OBJECT (object)' failed (xfdesktop:5504): GLib-GObject-WARNING **: invalid uninstantiatable type `<invalid>' in cast to `GObject' (xfdesktop:5504): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion `G_IS_OBJECT (object)' failed (xfdesktop:5504): GLib-GObject-WARNING **: invalid uninstantiatable type `<invalid>' in cast to `GtkMenuItem' (xfdesktop:5504): Gtk-CRITICAL **: gtk_menu_item_toggle_size_request: assertion `GTK_IS_MENU_ITEM (menu_item)' failed (xfdesktop:5504): GLib-GObject-WARNING **: invalid uninstantiatable type `<invalid>' in cast to `GtkMenuItem' (xfdesktop:5504): GLib-GObject-WARNING **: invalid uninstantiatable type `<invalid>' in cast to `GtkMenuItem' Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 47668733429856 (LWP 5504)] 0x00002b5ab9dc7a86 in gtk_menu_size_request (widget=0x78b0e0, requisition=0x78b118) at gtkmenu.c:2232 2232 gtkmenu.c: No such file or directory. in gtkmenu.c (gdb) bt #0 0x00002b5ab9dc7a86 in gtk_menu_size_request (widget=0x78b0e0, requisition=0x78b118) at gtkmenu.c:2232 #1 0x00002b5abcb3f1be in IA__g_closure_invoke (closure=0x549b10, return_value=0x0, n_param_values=2, param_values=0x7ffff1d7f730, invocation_hint=0x7ffff1d7f610) at gclosure.c:490 #2 0x00002b5abcb53cdc in signal_emit_unlocked_R (node=0x57f640, detail=0, instance=0x78b0e0, emission_return=0x0, instance_and_params=0x7ffff1d7f730) at gsignal.c:2370 #3 0x00002b5abcb559b8 in IA__g_signal_emit_valist (instance=0x78b0e0, signal_id=<value optimized out>, detail=0, var_args=0x7ffff1d7f9b0) at gsignal.c:2199 #4 0x00002b5abcb55d88 in IA__g_signal_emit_by_name (instance=0x78b0e0, detailed_signal=0x2b5ab9f91d88 "size_request") at gsignal.c:2267 #5 0x00002b5ab9e280bf in _gtk_size_group_compute_requisition ( widget=0x78b0e0, requisition=0x7ffff1d7fb20) at gtksizegroup.c:792 #6 0x00002b5ab9dc08ce in gtk_menu_position (menu=0x78b0e0) at gtkmenu.c:3763 #7 0x00002b5ab9dc2605 in IA__gtk_menu_popup (menu=0x78b0e0, parent_menu_shell=0x0, parent_menu_item=0x0, func=0, data=0x0, button=0, activate_time=760407583) at gtkmenu.c:1411 #8 0x00000000004120a3 in popup_desktop_menu (gscreen=0x56a1a0, button=0, time=760407583) at menu.c:98 #9 0x0000000000411aff in button_cb (w=<value optimized out>, evt=0x8b0950, user_data=<value optimized out>) at main.c:185 #10 0x00002b5ab9dbf7d3 in _gtk_marshal_BOOLEAN__BOXED (closure=0x5ab7b0, return_value=0x7ffff1d7fff0, n_param_values=<value optimized out>, param_values=0x7ffff1d800d0, invocation_hint=<value optimized out>, marshal_data=0x411ac0) at gtkmarshalers.c:84 #11 0x00002b5abcb3f1be in IA__g_closure_invoke (closure=0x5ab7b0, return_value=0x7ffff1d7fff0, n_param_values=2, param_values=0x7ffff1d800d0, invocation_hint=0x7ffff1d7ffb0) at gclosure.c:490 #12 0x00002b5abcb545aa in signal_emit_unlocked_R (node=0x580c20, detail=0, instance=0x5ac000, emission_return=0x7ffff1d802f0, instance_and_params=0x7ffff1d800d0) at gsignal.c:2510 #13 0x00002b5abcb55783 in IA__g_signal_emit_valist (instance=0x5ac000, signal_id=<value optimized out>, detail=0, var_args=0x7ffff1d80350) at gsignal.c:2209 #14 0x00002b5abcb55e73 in IA__g_signal_emit (instance=0x0, signal_id=6, detail=0) at gsignal.c:2243 #15 0x00002b5ab9ed3f95 in gtk_widget_event_internal (widget=0x5ac000, event=0x8b0950) at gtkwidget.c:3915 #16 0x00002b5ab9db76bf in IA__gtk_propagate_event (widget=0x5ac000, event=0x8b0950) at gtkmain.c:2341 #17 0x00002b5ab9db8817 in IA__gtk_main_do_event (event=0x8b0950) at gtkmain.c:1575 #18 0x00002b5aba17b18c in gdk_event_dispatch (source=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at gdkevents-x11.c:2318 #19 0x00002b5abcca448c in IA__g_main_context_dispatch (context=0x575500) at gmain.c:2045 #20 0x00002b5abcca72bd in g_main_context_iterate (context=0x575500, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2677 #21 0x00002b5abcca7599 in IA__g_main_loop_run (loop=0x5bd2e0) at gmain.c:2881 #22 0x00002b5ab9db8c12 in IA__gtk_main () at gtkmain.c:1154 #23 0x0000000000411928 in main (argc=1, argv=0x7ffff1d807c8) at main.c:404 Reproducible: Sometimes Steps to Reproduce: I don't have 'magic way' to trigger this, just keep right clicking on desktop and one time it crashes for me (sometimes sooner sometimes later)
The repeated calls to _generate_menu() are a bit odd. Do they happen all at once, or are they a result of clicking the mouse button repeatedly? I committed some changes to use new file monitoring code a couple weeks ago, you might give that a try, but I'm not sure why that would make a difference. Basically it looks like it's trying to pop up a menu that's already been freed. Not sure how that could happen.
Reporter: are you still seeing this with current svn trunk?
Can't reproduce, reporter unresponsive, closing.