[    2.001847] ip (248) used greatest stack depth: 12376 bytes left
[    2.701359] ip (282) used greatest stack depth: 12360 bytes left
[    2.757051] ip (286) used greatest stack depth: 12344 bytes left
[   15.910301] mpls_gso: MPLS GSO support
[ 1034.395949] blackhole_netdev_xmit(): Dropping skb.
[ 1034.396024] blackhole_netdev_xmit(): Dropping skb.
[ 1034.396058] blackhole_netdev_xmit(): Dropping skb.
[ 1034.396092] blackhole_netdev_xmit(): Dropping skb.