[    1.570146] ip (260) used greatest stack depth: 12280 bytes left
[   12.188184] mpls_gso: MPLS GSO support
[  873.338200] blackhole_netdev_xmit(): Dropping skb.
[  873.338257] blackhole_netdev_xmit(): Dropping skb.
[  873.338300] blackhole_netdev_xmit(): Dropping skb.
[  873.338334] blackhole_netdev_xmit(): Dropping skb.