[    2.050592] ip (255) used greatest stack depth: 12376 bytes left
[    2.685489] ip (289) used greatest stack depth: 12360 bytes left
[    2.732418] ip (293) used greatest stack depth: 12344 bytes left
[   15.756113] mpls_gso: MPLS GSO support
[  943.913945] blackhole_netdev_xmit(): Dropping skb.
[  943.914004] blackhole_netdev_xmit(): Dropping skb.
[  943.914036] blackhole_netdev_xmit(): Dropping skb.
[  943.914068] blackhole_netdev_xmit(): Dropping skb.