[    1.971896] ip (248) used greatest stack depth: 12376 bytes left
[    2.564558] ip (282) used greatest stack depth: 12360 bytes left
[    2.613632] ip (286) used greatest stack depth: 12344 bytes left
[   14.750286] mpls_gso: MPLS GSO support
[  630.469744] ip (21464) used greatest stack depth: 12232 bytes left
[  957.926448] blackhole_netdev_xmit(): Dropping skb.
[  957.926539] blackhole_netdev_xmit(): Dropping skb.
[  957.926592] blackhole_netdev_xmit(): Dropping skb.
[  957.926649] blackhole_netdev_xmit(): Dropping skb.
[  992.917027] blackhole_netdev_xmit(): Dropping skb.
[  992.917098] blackhole_netdev_xmit(): Dropping skb.
[  992.917139] blackhole_netdev_xmit(): Dropping skb.
[  992.917173] blackhole_netdev_xmit(): Dropping skb.