Comment 2 for bug 1341996

StacktraceTop:
 net_device_simple_get_speed (device_simple=0x9aab068) at net-device-simple.c:275
 device_ethernet_refresh_ui (device=0x9aab068) at net-device-ethernet.c:233
 g_cclosure_marshal_VOID__VOID (closure=0x9d39380, return_value=0x0, n_param_values=1, param_values=0xbffa4d10, invocation_hint=0xbffa4cbc, marshal_data=0x0) at /build/buildd/glib2.0-2.41.1/./gobject/gmarshal.c:85
 g_closure_invoke (closure=0x9d39380, return_value=return_value@entry=0x0, n_param_values=1, param_values=param_values@entry=0xbffa4d10, invocation_hint=invocation_hint@entry=0xbffa4cbc) at /build/buildd/glib2.0-2.41.1/./gobject/gclosure.c:768
 signal_emit_unlocked_R (node=node@entry=0x9d287e0, detail=0, instance=0x9a22238, emission_return=emission_return@entry=0x0, instance_and_params=0xbffa4d10) at /build/buildd/glib2.0-2.41.1/./gobject/gsignal.c:3555