[    3.122762] ip (285) used greatest stack depth: 12384 bytes left
[   17.370010] mpls_gso: MPLS GSO support
[   23.252629] ip (2165) used greatest stack depth: 12368 bytes left
[   28.868957] ip (2459) used greatest stack depth: 12320 bytes left
[  953.081588] blackhole_netdev_xmit(): Dropping skb.
[  953.081648] blackhole_netdev_xmit(): Dropping skb.
[  953.081679] blackhole_netdev_xmit(): Dropping skb.
[  953.081711] blackhole_netdev_xmit(): Dropping skb.