[    2.225129] ip (246) used greatest stack depth: 12376 bytes left
[    2.262372] ip (249) used greatest stack depth: 12328 bytes left
[   16.975221] mpls_gso: MPLS GSO support
[  952.359456] blackhole_netdev_xmit(): Dropping skb.
[  952.359524] blackhole_netdev_xmit(): Dropping skb.
[  952.359557] blackhole_netdev_xmit(): Dropping skb.
[  952.359588] blackhole_netdev_xmit(): Dropping skb.