[    1.971417] ip (295) used greatest stack depth: 12248 bytes left
[    2.109253] ip (309) used greatest stack depth: 12224 bytes left
[   10.612652] mpls_gso: MPLS GSO support
[  784.847679] blackhole_netdev_xmit(): Dropping skb.
[  784.847771] blackhole_netdev_xmit(): Dropping skb.
[  784.847827] blackhole_netdev_xmit(): Dropping skb.
[  784.847875] blackhole_netdev_xmit(): Dropping skb.