[    1.582054] ip (259) used greatest stack depth: 12280 bytes left
[    2.010145] ip (293) used greatest stack depth: 12248 bytes left
[   12.205144] mpls_gso: MPLS GSO support
[ 1077.522884] blackhole_netdev_xmit(): Dropping skb.
[ 1077.522979] blackhole_netdev_xmit(): Dropping skb.
[ 1077.523036] blackhole_netdev_xmit(): Dropping skb.
[ 1077.523090] blackhole_netdev_xmit(): Dropping skb.