#0  0x00007f544d8f0f38 in g_type_check_instance_cast ()
   from /usr/lib/libgobject-2.0.so.0
#1  0x00007f54448b00f4 in ?? ()
   from /usr/lib/gtk-2.0/2.10.0/filesystems/libgio.so
#2  0x00007f544d8d4bcf in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#3  0x00007f544d8e86bc in ?? () from /usr/lib/libgobject-2.0.so.0
#4  0x00007f544d8ea0d5 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#5  0x00007f544d8ea398 in g_signal_emit_by_name ()
   from /usr/lib/libgobject-2.0.so.0
#6  0x00007f544d8d4bcf in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#7  0x00007f544d8e86bc in ?? () from /usr/lib/libgobject-2.0.so.0
#8  0x00007f544d8ea0d5 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#9  0x00007f544d8ea398 in g_signal_emit_by_name ()
   from /usr/lib/libgobject-2.0.so.0
#10 0x00007f5443f04530 in ?? ()
   from /usr/lib/gio/modules/libgiohal-volume-monitor.so
#11 0x00007f5443f0458e in ?? ()
   from /usr/lib/gio/modules/libgiohal-volume-monitor.so
#12 0x00007f544d23a222 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#13 0x00007f544d23d4d6 in ?? () from /usr/lib/libglib-2.0.so.0
#14 0x00007f544d23d797 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#15 0x00007f544e9e0ee3 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#16 0x0000000000461f25 in ?? ()
#17 0x00007f544c7251c4 in __libc_start_main () from /lib/libc.so.6
#18 0x0000000000417409 in ?? ()
#19 0x00007fff57087ae8 in ?? ()
#20 0x0000000000000000 in ?? ()