[    2.122285] ip (251) used greatest stack depth: 12240 bytes left
[   15.800598] mpls_gso: MPLS GSO support
[  861.162240] blackhole_netdev_xmit(): Dropping skb.
[  861.162304] blackhole_netdev_xmit(): Dropping skb.
[  861.162337] blackhole_netdev_xmit(): Dropping skb.
[  861.162371] blackhole_netdev_xmit(): Dropping skb.