[    2.072447] ip (246) used greatest stack depth: 12288 bytes left
[    2.143501] ip (252) used greatest stack depth: 12240 bytes left
[   16.584974] mpls_gso: MPLS GSO support
[ 1223.132122] blackhole_netdev_xmit(): Dropping skb.
[ 1223.132216] blackhole_netdev_xmit(): Dropping skb.
[ 1223.132265] blackhole_netdev_xmit(): Dropping skb.
[ 1223.132313] blackhole_netdev_xmit(): Dropping skb.