[    2.143517] ip (294) used greatest stack depth: 12272 bytes left
[    4.656062] ip (429) used greatest stack depth: 12240 bytes left
[   12.786599] mpls_gso: MPLS GSO support
[ 1182.394608] blackhole_netdev_xmit(): Dropping skb.
[ 1182.394667] blackhole_netdev_xmit(): Dropping skb.
[ 1182.394709] blackhole_netdev_xmit(): Dropping skb.
[ 1182.394754] blackhole_netdev_xmit(): Dropping skb.