[    2.592321] ip (286) used greatest stack depth: 12272 bytes left
[   16.597376] mpls_gso: MPLS GSO support
[ 1136.528234] blackhole_netdev_xmit(): Dropping skb.
[ 1136.528302] blackhole_netdev_xmit(): Dropping skb.
[ 1136.528332] blackhole_netdev_xmit(): Dropping skb.
[ 1136.528363] blackhole_netdev_xmit(): Dropping skb.