[    1.945619] ip (293) used greatest stack depth: 12248 bytes left
[   11.914774] mpls_gso: MPLS GSO support
[  624.033514] ip (2954) used greatest stack depth: 12232 bytes left
[  696.831267] blackhole_netdev_xmit(): Dropping skb.
[  696.831350] blackhole_netdev_xmit(): Dropping skb.
[  696.831404] blackhole_netdev_xmit(): Dropping skb.
[  696.831452] blackhole_netdev_xmit(): Dropping skb.