[    2.648315] ip (281) used greatest stack depth: 12344 bytes left
[    8.790346] ip (759) used greatest stack depth: 12328 bytes left
[   14.417329] mpls_gso: MPLS GSO support
[   19.422189] ip (2156) used greatest stack depth: 12304 bytes left
[ 1231.145765] blackhole_netdev_xmit(): Dropping skb.
[ 1231.145851] blackhole_netdev_xmit(): Dropping skb.
[ 1231.145885] blackhole_netdev_xmit(): Dropping skb.
[ 1231.145918] blackhole_netdev_xmit(): Dropping skb.