#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:58
  [Error: raise.c was not found in source tree]
#1  0x00007f44a21d93ea in __GI_abort () at abort.c:89
  [Error: abort.c was not found in source tree]
#2  0x00007f44a27f8135 in g_assertion_message () from /tmp/apport_sandbox_88AF7K/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f44a27f81ca in g_assertion_message_expr () from /tmp/apport_sandbox_88AF7K/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f44a3fa9567 in meta_group_new (display=0x55b59f5568d0, group_leader=<optimized out>) at x11/group.c:71
  [Error: group.c was not found in source tree]
#5  0x00007f44a3fa984a in meta_window_compute_group (window=window@entry=0x55b5a34c8420) at x11/group.c:179
  [Error: group.c was not found in source tree]
#6  0x00007f44a3fa98b2 in meta_window_group_leader_changed (window=window@entry=0x55b5a34c8420) at x11/group.c:216
  [Error: group.c was not found in source tree]
#7  0x00007f44a3f9fdbc in meta_window_set_transient_for (window=0x55b5a34c8420, parent=<optimized out>) at core/window.c:7548
  [Error: window.c was not found in source tree]
#8  0x00007f44a3faead8 in reload_prop_value (hooks=<optimized out>, hooks=<optimized out>, initial=1, value=0x55b5a10cc080, window=0x55b5a34c8420) at x11/window-props.c:198
  [Error: window-props.c was not found in source tree]
#9  meta_window_load_initial_properties (window=0x55b5a34c8420) at x11/window-props.c:162
  [Error: window-props.c was not found in source tree]
#10 0x00007f44a3fb274c in meta_window_x11_manage (window=0x55b5a34c8420) at x11/window-x11.c:521
  [Error: window-x11.c was not found in source tree]
#11 0x00007f44a3f9b2a0 in _meta_window_shared_new (display=display@entry=0x55b59f5568d0, screen=screen@entry=0x55b59f3505a0, client_type=client_type@entry=META_WINDOW_CLIENT_TYPE_X11, surface=surface@entry=0x0, xwindow=xwindow@entry=48244833, existing_wm_state=existing_wm_state@entry=0, effect=<optimized out>, attrs=<optimized out>) at core/window.c:1065
  [Error: window.c was not found in source tree]
#12 0x00007f44a3fb3208 in meta_window_x11_new (display=display@entry=0x55b59f5568d0, xwindow=48244833, must_be_viewable=must_be_viewable@entry=0, effect=effect@entry=META_COMP_EFFECT_CREATE) at x11/window-x11.c:3024
  [Error: window-x11.c was not found in source tree]
#13 0x00007f44a3fa8514 in handle_other_xevent (display=display@entry=0x55b59f5568d0, event=event@entry=0x7fff2f46b640) at x11/events.c:1372
  [Error: events.c was not found in source tree]
#14 0x00007f44a3fa8b8b in meta_display_handle_xevent (event=0x7fff2f46b640, display=0x55b59f5568d0) at x11/events.c:1784
  [Error: events.c was not found in source tree]
#15 xevent_filter (xevent=0x7fff2f46b640, event=<optimized out>, data=0x55b59f5568d0) at x11/events.c:1823
  [Error: events.c was not found in source tree]
#16 0x00007f449f233af1 in gdk_event_apply_filters (xevent=xevent@entry=0x7fff2f46b640, event=event@entry=0x55b5a3a31ee0, window=window@entry=0x0) at ././gdk/x11/gdkeventsource.c:79
  [Error: gdkeventsource.c was not found in source tree]
#17 0x00007f449f233da9 in gdk_event_source_translate_event (xevent=0x7fff2f46b640, event_source=0x55b59f4213e0) at ././gdk/x11/gdkeventsource.c:198
  [Error: gdkeventsource.c was not found in source tree]
#18 _gdk_x11_display_queue_events (display=0x55b59f4a3100) at ././gdk/x11/gdkeventsource.c:341
  [Error: gdkeventsource.c was not found in source tree]
#19 0x00007f449f1fe129 in gdk_display_get_event (display=display@entry=0x55b59f4a3100) at ././gdk/gdkdisplay.c:438
  [Error: gdkdisplay.c was not found in source tree]
#20 0x00007f449f233b62 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at ././gdk/x11/gdkeventsource.c:363
  [Error: gdkeventsource.c was not found in source tree]
#21 0x00007f44a27d1377 in g_main_context_dispatch () from /tmp/apport_sandbox_88AF7K/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f44a27d15e0 in ?? () from /tmp/apport_sandbox_88AF7K/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f44a27d1902 in g_main_loop_run () from /tmp/apport_sandbox_88AF7K/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f44a3f896dc in meta_run () at core/main.c:646
#25 0x000055b59f0851a7 in main (argc=<optimized out>, argv=<optimized out>) at main.c:454
  449: 
  450:   _shell_global_init ("session-mode", session_mode, NULL);
  451: 
  452:   shell_prefs_init ();
  453: 
  454:   ecode = meta_run ();
  455: 
  456:   g_debug ("Doing final cleanup");
  457:   _shell_global_destroy_gjs_context (shell_global_get ());
  458:   g_object_unref (shell_global_get ());
  459: