xfwm4 crashes when using X2go
Submitted by Mukundan Ragavan
Assigned to Olivier Fourdan @olivier
Description
On Fedora 25, xfwm4 seems to crash when using X2go. Here is some log,
dbus-daemon[8871]: [session uid=6105 pid=8869] Successfully activated service 'org.gtk.vfs.AfcVolumeMonitor'
kernel: xfce4-panel[9393]: segfault at 0 ip 00007f634e4826a7 sp 00007ffc5bef8858 error 4 in libX11-xcb.so.1.0.0[7f634e482000+1000]
systemd-coredump: Process 9393 (xfce4-panel) of user 6105 dumped core.#012#012Stack trace of thread 9393:#012#0 0x00007f634e4826a7 XGetXCBConnection (libX11-xcb.so.1)#012#1 0x00007f6352cfe1b2 sn_display_new (libstartup-notification-1.so.0)#012#2 0x00007f63565b267f wnck_screen_get (libwnck-1.so.22)#012#3 0x000055bb4e3a156a panel_window_screen_changed (xfce4-panel)#012#4 0x00007f63550767fb g_type_create_instance (libgobject-2.0.so.0)#012#5 0x00007f635505869b g_object_new_internal (libgobject-2.0.so.0)#012#6 0x00007f635505a5ae g_object_new_valist (libgobject-2.0.so.0)#012#7 0x00007f635505a851 g_object_new (libgobject-2.0.so.0)#012#8 0x000055bb4e3a3e38 panel_window_new (xfce4-panel)#012#9 0x000055bb4e3890b2 panel_application_new_window (xfce4-panel)#012#10 0x000055bb4e3893cc panel_application_load_real (xfce4-panel)#012#11 0x000055bb4e3897bc panel_application_wait_for_window_manager_destroyed (xfce4-panel)#012#12 0x00007f6354d77938 g_source_callback_unref (libglib-2.0.so.0)#012#13 0x00007f6354d79106 g_source_destroy_internal (libglib-2.0.so.0)#012#14 0x00007f6354d7af00 g_main_context_dispatch (libglib-2.0.so.0)#012#15 0x00007f6354d7b1d0 g_main_context_iterate.isra.24 (libglib-2.0.so.0)#012#16 0x00007f6354d7b4f2 g_main_loop_run (libglib-2.0.so.0)#012#17 0x00007f6356058267 gtk_main (libgtk-x11-2.0.so.0)#012#18 0x000055bb4e386f58 main (xfce4-panel)#012#19 0x00007f6354464401 __libc_start_main (libc.so.6)#012#20 0x000055bb4e3870d9 _start (xfce4-panel)
Mar 21 14:39:36 dbus-daemon[8871]: [session uid=6105 pid=8869] Activating service name='org.gtk.vfs.GoaVolumeMonitor' requested by ':1.12' (uid=6105 pid=8946 comm="/usr/libexec/tracker-extract ")
dbus-daemon[8871]: [session uid=6105 pid=8869] Successfully activated service 'org.gtk.vfs.GoaVolumeMonitor'
kernel: xfce4-panel[9455]: segfault at 0 ip 00007f7b7ad2a6a7 sp 00007ffc5c899df8 error 4 in libX11-xcb.so.1.0.0[7f7b7ad2a000+1000]
systemd: Started Process Core Dump (PID 9495/UID 0).
systemd-coredump: Removed old coredump core.marco.1000.c2b3c76b5fd04c8f981c941d5266a42d.16081.1489583034000000000000.lz4.
systemd-coredump: Process 9455 (xfce4-panel) of user 6105 dumped core.#012#012Stack trace of thread 9455:#012#0 0x00007f7b7ad2a6a7 XGetXCBConnection (libX11-xcb.so.1)#012#1 0x00007f7b7f5a61b2 sn_display_new (libstartup-notification-1.so.0)#012#2 0x00007f7b82e5a67f wnck_screen_get (libwnck-1.so.22)#012#3 0x0000560d747b156a panel_window_screen_changed (xfce4-panel)#012#4 0x00007f7b8191e7fb g_type_create_instance (libgobject-2.0.so.0)#012#5 0x00007f7b8190069b g_object_new_internal (libgobject-2.0.so.0)#012#6 0x00007f7b819025ae g_object_new_valist (libgobject-2.0.so.0)#012#7 0x00007f7b81902851 g_object_new (libgobject-2.0.so.0)#012#8 0x0000560d747b3e38 panel_window_new (xfce4-panel)#012#9 0x0000560d747990b2 panel_application_new_window (xfce4-panel)#012#10 0x0000560d747993cc panel_application_load_real (xfce4-panel)#012#11 0x0000560d747997bc panel_application_wait_for_window_manager_destroyed (xfce4-panel)#012#12 0x00007f7b8161f938 g_source_callback_unref (libglib-2.0.so.0)#012#13 0x00007f7b81621106 g_source_destroy_internal (libglib-2.0.so.0)#012#14 0x00007f7b81622f00 g_main_context_dispatch (libglib-2.0.so.0)#012#15 0x00007f7b816231d0 g_main_context_iterate.isra.24 (libglib-2.0.so.0)#012#16 0x00007f7b816234f2 g_main_loop_run (libglib-2.0.so.0)#012#17 0x00007f7b82900267 gtk_main (libgtk-x11-2.0.so.0)#012#18 0x0000560d74796f58 main (xfce4-panel)#012#19 0x00007f7b80d0c401 __libc_start_main (libc.so.6)#012#20 0x0000560d747970d9 _start (xfce4-panel)
Downstream bug report -
https://bugzilla.redhat.com/show_bug.cgi?id=1433420
Coredump from the crash is attached here -