#0  0x00007f87bb646f38 in g_type_check_instance_cast ()
   from /usr/lib/libgobject-2.0.so.0
#1  0x00007f87b28840f4 in ?? ()
   from /usr/lib/gtk-2.0/2.10.0/filesystems/libgio.so
#2  0x00007f87bb62abcf in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#3  0x00007f87bb63e6bc in ?? () from /usr/lib/libgobject-2.0.so.0
#4  0x00007f87bb6400d5 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#5  0x00007f87bb640398 in g_signal_emit_by_name ()
   from /usr/lib/libgobject-2.0.so.0
#6  0x00007f87bb62abcf in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#7  0x00007f87bb63e6bc in ?? () from /usr/lib/libgobject-2.0.so.0
#8  0x00007f87bb6400d5 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#9  0x00007f87bb640398 in g_signal_emit_by_name ()
   from /usr/lib/libgobject-2.0.so.0
#10 0x00007f87b10c044c in ?? ()
   from /usr/lib/gio/modules/libgiohal-volume-monitor.so
#11 0x00007f87bb397222 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#12 0x00007f87bb39a4d6 in ?? () from /usr/lib/libglib-2.0.so.0
#13 0x00007f87bb39a797 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#14 0x00007f87bce1dee3 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#15 0x00000000004232d2 in main ()