[    1.745063] ip (261) used greatest stack depth: 12232 bytes left
[   13.892830] mpls_gso: MPLS GSO support
[  868.841109] blackhole_netdev_xmit(): Dropping skb.
[  868.841181] blackhole_netdev_xmit(): Dropping skb.
[  868.841240] blackhole_netdev_xmit(): Dropping skb.
[  868.841291] blackhole_netdev_xmit(): Dropping skb.