(gdb) bt
#0  0x00007ffff6f93729 in __GI___poll (fds=0x555555897d50, nfds=5, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff70decb6 in g_main_context_poll (priority=<optimized out>, n_fds=5, fds=0x555555897d50, timeout=<optimized out>, context=0x5555555e0a50) at ../../../glib/gmain.c:4228
#2  0x00007ffff70decb6 in g_main_context_iterate (context=0x5555555e0a50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3922
#3  0x00007ffff70df042 in g_main_loop_run (loop=0x555555897e80) at ../../../glib/gmain.c:4123
#4  0x00007ffff789fe75 in gtk_main () at ../../../../gtk/gtkmain.c:1323
#5  0x0000555555580b0b in  ()
#6  0x0000555555580d26 in  ()
#7  0x00007ffff70db323 in g_source_callback_unref (cb_data=0x555555660880) at ../../../glib/gmain.c:1553
#8  0x00007ffff70db323 in g_source_callback_unref (cb_data=0x555555660880) at ../../../glib/gmain.c:1546
#9  0x00007ffff70dbd5e in g_source_destroy_internal (source=0x55555566b840, context=0x5555555e0a50, have_lock=1) at ../../../glib/gmain.c:1238
#10 0x00007ffff70de9e8 in g_main_dispatch (context=0x5555555e0a50) at ../../../glib/gmain.c:3213
#11 0x00007ffff70de9e8 in g_main_context_dispatch (context=context@entry=0x5555555e0a50) at ../../../glib/gmain.c:3854
#12 0x00007ffff70ded48 in g_main_context_iterate (context=context@entry=0x5555555e0a50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3927
#13 0x00007ffff70deddc in g_main_context_iteration (context=context@entry=0x5555555e0a50, may_block=may_block@entry=1) at ../../../glib/gmain.c:3988
#14 0x00007ffff72e08bd in g_application_run (application=0x5555555dc150 [XfdesktopApplication], argc=<optimized out>, argv=0x7fffffffe118) at ../../../gio/gapplication.c:2516
#15 0x00005555555701a8 in main ()
