[    1.629695] ip (260) used greatest stack depth: 12280 bytes left
[   12.363216] ip (1239) used greatest stack depth: 12080 bytes left
[   13.354692] mpls_gso: MPLS GSO support
[  858.922883] blackhole_netdev_xmit(): Dropping skb.
[  858.923015] blackhole_netdev_xmit(): Dropping skb.
[  858.923090] blackhole_netdev_xmit(): Dropping skb.
[  858.923169] blackhole_netdev_xmit(): Dropping skb.