[    2.107939] ip (254) used greatest stack depth: 12288 bytes left
[    2.754645] ip (288) used greatest stack depth: 12272 bytes left
[   15.713604] mpls_gso: MPLS GSO support
[  788.545735] blackhole_netdev_xmit(): Dropping skb.
[  788.545816] blackhole_netdev_xmit(): Dropping skb.
[  788.545851] blackhole_netdev_xmit(): Dropping skb.
[  788.545884] blackhole_netdev_xmit(): Dropping skb.