[    2.503356] ip (280) used greatest stack depth: 12344 bytes left
[   15.320805] mpls_gso: MPLS GSO support
[   28.109660] ip (2690) used greatest stack depth: 12192 bytes left
[  781.808517] blackhole_netdev_xmit(): Dropping skb.
[  781.808583] blackhole_netdev_xmit(): Dropping skb.
[  781.808618] blackhole_netdev_xmit(): Dropping skb.
[  781.808655] blackhole_netdev_xmit(): Dropping skb.