[    2.271172] ip (295) used greatest stack depth: 12288 bytes left
[   12.050880] mpls_gso: MPLS GSO support
[  874.400705] blackhole_netdev_xmit(): Dropping skb.
[  874.400760] blackhole_netdev_xmit(): Dropping skb.
[  874.400790] blackhole_netdev_xmit(): Dropping skb.
[  874.400824] blackhole_netdev_xmit(): Dropping skb.
[  889.938262] blackhole_netdev_xmit(): Dropping skb.
[  889.938354] blackhole_netdev_xmit(): Dropping skb.
[  889.938405] blackhole_netdev_xmit(): Dropping skb.
[  889.938441] blackhole_netdev_xmit(): Dropping skb.