[    1.971384] ip (244) used greatest stack depth: 12376 bytes left
[    2.576401] ip (278) used greatest stack depth: 12344 bytes left
[   17.286273] mpls_gso: MPLS GSO support
[ 1061.096187] blackhole_netdev_xmit(): Dropping skb.
[ 1061.096244] blackhole_netdev_xmit(): Dropping skb.
[ 1061.096274] blackhole_netdev_xmit(): Dropping skb.
[ 1061.096300] blackhole_netdev_xmit(): Dropping skb.