[    1.623177] ip (261) used greatest stack depth: 12288 bytes left
[    2.067644] ip (295) used greatest stack depth: 12272 bytes left
[   11.880983] mpls_gso: MPLS GSO support
[ 1053.307587] blackhole_netdev_xmit(): Dropping skb.
[ 1053.307698] blackhole_netdev_xmit(): Dropping skb.
[ 1053.307774] blackhole_netdev_xmit(): Dropping skb.
[ 1053.307836] blackhole_netdev_xmit(): Dropping skb.