[    2.035644] ip (248) used greatest stack depth: 12376 bytes left
[    2.658773] ip (282) used greatest stack depth: 12344 bytes left
[   14.876237] ip (1211) used greatest stack depth: 12288 bytes left
[   16.421155] mpls_gso: MPLS GSO support
[  731.572814] blackhole_netdev_xmit(): Dropping skb.
[  731.572878] blackhole_netdev_xmit(): Dropping skb.
[  731.572912] blackhole_netdev_xmit(): Dropping skb.
[  731.572946] blackhole_netdev_xmit(): Dropping skb.
[  779.584975] blackhole_netdev_xmit(): Dropping skb.
[  779.585046] blackhole_netdev_xmit(): Dropping skb.
[  779.585084] blackhole_netdev_xmit(): Dropping skb.
[  779.585122] blackhole_netdev_xmit(): Dropping skb.