[ 14.737000] mpls_gso: MPLS GSO support [ 692.382354] blackhole_netdev_xmit(): Dropping skb. [ 692.382435] blackhole_netdev_xmit(): Dropping skb. [ 692.382482] blackhole_netdev_xmit(): Dropping skb. [ 692.382530] blackhole_netdev_xmit(): Dropping skb. [ 745.077768] blackhole_netdev_xmit(): Dropping skb. [ 745.077856] blackhole_netdev_xmit(): Dropping skb. [ 745.077912] blackhole_netdev_xmit(): Dropping skb. [ 745.077960] blackhole_netdev_xmit(): Dropping skb.