[    2.117751] ip (248) used greatest stack depth: 12376 bytes left
[    2.788636] ip (279) used greatest stack depth: 12344 bytes left
[   13.604301] ip (1121) used greatest stack depth: 12192 bytes left
[   16.311497] mpls_gso: MPLS GSO support
[  987.758087] blackhole_netdev_xmit(): Dropping skb.
[  987.758157] blackhole_netdev_xmit(): Dropping skb.
[  987.758191] blackhole_netdev_xmit(): Dropping skb.
[  987.758224] blackhole_netdev_xmit(): Dropping skb.
[  988.533869] blackhole_netdev_xmit(): Dropping skb.
[  988.533922] blackhole_netdev_xmit(): Dropping skb.
[  988.533955] blackhole_netdev_xmit(): Dropping skb.
[  988.533982] blackhole_netdev_xmit(): Dropping skb.