[   18.782786] ip (263) used greatest stack depth: 12280 bytes left
[   19.171399] ip (294) used greatest stack depth: 12248 bytes left
[   29.075914] mpls_gso: MPLS GSO support
[ 1095.037347] blackhole_netdev_xmit(): Dropping skb.
[ 1095.037452] blackhole_netdev_xmit(): Dropping skb.
[ 1095.037508] blackhole_netdev_xmit(): Dropping skb.
[ 1095.037562] blackhole_netdev_xmit(): Dropping skb.