(gdb) bt
#0  0x00007ffff727b729 in __GI___poll (fds=0x555557f8c480, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff73c4cb6 in g_main_context_poll (priority=<optimized out>, n_fds=3, fds=0x555557f8c480, timeout=<optimized out>, context=0x5555555ecc30) at ../../../glib/gmain.c:4228
#2  0x00007ffff73c4cb6 in g_main_context_iterate (context=0x5555555ecc30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3922
#3  0x00007ffff73c5042 in g_main_loop_run (loop=0x5555555bcf30) at ../../../glib/gmain.c:4123
#4  0x00007ffff7a3fe75 in gtk_main () at ../../../../gtk/gtkmain.c:1323
#5  0x0000555555567d80 in  ()
#6  0x00007ffff7190b6b in __libc_start_main (main=0x555555567c30, argc=1, argv=0x7fffffffe118, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe108)
    at ../csu/libc-start.c:308
#7  0x0000555555567e9a in  ()
