[    1.965906] ip (248) used greatest stack depth: 12376 bytes left
[    2.571476] ip (282) used greatest stack depth: 12344 bytes left
[   16.685966] mpls_gso: MPLS GSO support
[ 1119.155481] blackhole_netdev_xmit(): Dropping skb.
[ 1119.155558] blackhole_netdev_xmit(): Dropping skb.
[ 1119.155599] blackhole_netdev_xmit(): Dropping skb.
[ 1119.155633] blackhole_netdev_xmit(): Dropping skb.