[    2.533825] ip (280) used greatest stack depth: 12360 bytes left
[    2.710544] ip (294) used greatest stack depth: 12344 bytes left
[   14.173417] mpls_gso: MPLS GSO support
[ 1138.360607] blackhole_netdev_xmit(): Dropping skb.
[ 1138.360675] blackhole_netdev_xmit(): Dropping skb.
[ 1138.360706] blackhole_netdev_xmit(): Dropping skb.
[ 1138.360739] blackhole_netdev_xmit(): Dropping skb.