[    2.039733] ip (246) used greatest stack depth: 12328 bytes left
[    2.992022] ip (295) used greatest stack depth: 12304 bytes left
[   17.948876] mpls_gso: MPLS GSO support
[  668.762454] blackhole_netdev_xmit(): Dropping skb.
[  668.762515] blackhole_netdev_xmit(): Dropping skb.
[  668.762551] blackhole_netdev_xmit(): Dropping skb.
[  668.762592] blackhole_netdev_xmit(): Dropping skb.
[  704.028701] blackhole_netdev_xmit(): Dropping skb.
[  704.028761] blackhole_netdev_xmit(): Dropping skb.
[  704.028793] blackhole_netdev_xmit(): Dropping skb.
[  704.028827] blackhole_netdev_xmit(): Dropping skb.