.
Thread 1 (process 12680):
#0  0x0000000000406bb1 in ?? ()
#1  0x00007f79cb8bc2cd in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#2  0x00007f79cb8d30b0 in ?? () from /usr/lib/libgobject-2.0.so.0
#3  0x00007f79cb8d47a9 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#4  0x00007f79cb8d4d13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#5  0x00007f79cbdac03d in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#6  0x00007f79cb8bc2cd in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#7  0x00007f79cb8d29de in ?? () from /usr/lib/libgobject-2.0.so.0
#8  0x00007f79cb8d47a9 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#9  0x00007f79cb8d4d13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#10 0x00007f79cbdab020 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#11 0x00007f79cbe6b613 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#12 0x00007f79cb8bc2cd in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#13 0x00007f79cb8d2d94 in ?? () from /usr/lib/libgobject-2.0.so.0
#14 0x00007f79cb8d4658 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#15 0x00007f79cb8d4d13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#16 0x00007f79cbf89d4e in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#17 0x00007f79cbe627fd in gtk_propagate_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#18 0x00007f79cbe63adb in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#19 0x00007f79caab716c in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#20 0x00007f79cb62340b in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#21 0x00007f79cb626bcd in ?? () from /usr/lib/libglib-2.0.so.0
#22 0x00007f79cb6270fd in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#23 0x00007f79cbe63f27 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x00000000004073ff in ?? ()
#25 0x00007f79cb08a5a6 in __libc_start_main () from /lib/libc.so.6
#26 0x00000000004038f9 in ?? ()
#27 0x00007fffd478c0c8 in ?? ()
#28 0x000000000000001c in ?? ()
#29 0x0000000000000001 in ?? ()
#30 0x00007fffd478db89 in ?? ()
#31 0x0000000000000000 in ?? ()