[    2.068121] ip (292) used greatest stack depth: 12376 bytes left
[    2.106510] ip (297) used greatest stack depth: 12360 bytes left
[   11.998770] mpls_gso: MPLS GSO support
[  746.729014] blackhole_netdev_xmit(): Dropping skb.
[  746.729076] blackhole_netdev_xmit(): Dropping skb.
[  746.729121] blackhole_netdev_xmit(): Dropping skb.
[  746.729158] blackhole_netdev_xmit(): Dropping skb.