[    1.882870] ip (251) used greatest stack depth: 12304 bytes left
[    2.438254] ip (282) used greatest stack depth: 12272 bytes left
[   14.774190] mpls_gso: MPLS GSO support
[ 1237.893963] blackhole_netdev_xmit(): Dropping skb.
[ 1237.894034] blackhole_netdev_xmit(): Dropping skb.
[ 1237.894070] blackhole_netdev_xmit(): Dropping skb.
[ 1237.894103] blackhole_netdev_xmit(): Dropping skb.