[    2.785737] ip (280) used greatest stack depth: 12360 bytes left
[    2.853299] ip (284) used greatest stack depth: 12344 bytes left
[    8.988080] ip (652) used greatest stack depth: 12064 bytes left
[   18.089166] mpls_gso: MPLS GSO support
[ 1214.343843] blackhole_netdev_xmit(): Dropping skb.
[ 1214.343910] blackhole_netdev_xmit(): Dropping skb.
[ 1214.343941] blackhole_netdev_xmit(): Dropping skb.
[ 1214.343975] blackhole_netdev_xmit(): Dropping skb.