[    1.601958] ip (260) used greatest stack depth: 12280 bytes left
[    1.965059] ip (294) used greatest stack depth: 12248 bytes left
[   11.669995] mpls_gso: MPLS GSO support
[  891.354317] blackhole_netdev_xmit(): Dropping skb.
[  891.354428] blackhole_netdev_xmit(): Dropping skb.
[  891.354484] blackhole_netdev_xmit(): Dropping skb.
[  891.354538] blackhole_netdev_xmit(): Dropping skb.