(gdb) bt
#0  0x00007ffff465fbad in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff4b9efe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff4b9f30a in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff6a28447 in gtk_main ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#4  0x00005555555775f9 in main (argc=1, argv=0x7fffffffdf18) at main.c:310