Comment 2 for bug 1267106

StacktraceTop:
 net_device_get_nm_device (device=0x9f77ca8) at net-device.c:230
 mobilebb_enabled_toggled (client=0x9bdea50, pspec=0xa0dd220, device_mobile=0x9f77ca8) at net-device-mobile.c:179
 g_cclosure_marshal_VOID__STRINGv (closure=0xa13a9f0, return_value=0x0, instance=0x2, args=0xbfce7e00 "\250\230\361\tP\352\275\t", marshal_data=0xbfce7dac, n_params=0, param_types=0xbfce7dd0) at /build/buildd/glib2.0-2.39.2~git20131207.90447445/./gobject/gmarshal.c:976
 g_closure_invoke (closure=0xa13a9f0, return_value=0x0, n_param_values=2, param_values=0xbfce7e00, invocation_hint=0xbfce7dac) at /build/buildd/glib2.0-2.39.2~git20131207.90447445/./gobject/gclosure.c:762
 signal_emit_unlocked_R (node=0x9a84f18, detail=3991, instance=0x9bdea50, emission_return=0x0, instance_and_params=0xbfce7e00) at /build/buildd/glib2.0-2.39.2~git20131207.90447445/./gobject/gsignal.c:3631