[    2.752632] ip (280) used greatest stack depth: 12344 bytes left
[   16.549811] mpls_gso: MPLS GSO support
[   17.579751] ip (1445) used greatest stack depth: 12288 bytes left
[  867.988203] blackhole_netdev_xmit(): Dropping skb.
[  867.988263] blackhole_netdev_xmit(): Dropping skb.
[  867.988293] blackhole_netdev_xmit(): Dropping skb.
[  867.988320] blackhole_netdev_xmit(): Dropping skb.