[    2.177588] ip (248) used greatest stack depth: 12376 bytes left
[    2.875786] ip (282) used greatest stack depth: 12344 bytes left
[   17.713284] mpls_gso: MPLS GSO support
[  646.005037] ip (23384) used greatest stack depth: 12192 bytes left
[  995.154971] blackhole_netdev_xmit(): Dropping skb.
[  995.155028] blackhole_netdev_xmit(): Dropping skb.
[  995.155058] blackhole_netdev_xmit(): Dropping skb.
[  995.155087] blackhole_netdev_xmit(): Dropping skb.