[    2.106217] ip (249) used greatest stack depth: 12376 bytes left
[    2.708790] ip (280) used greatest stack depth: 12360 bytes left
[    2.918029] ip (294) used greatest stack depth: 12344 bytes left
[   16.137470] mpls_gso: MPLS GSO support
[  694.818750] blackhole_netdev_xmit(): Dropping skb.
[  694.818846] blackhole_netdev_xmit(): Dropping skb.
[  694.818890] blackhole_netdev_xmit(): Dropping skb.
[  694.818923] blackhole_netdev_xmit(): Dropping skb.
[  720.938905] blackhole_netdev_xmit(): Dropping skb.
[  720.938963] blackhole_netdev_xmit(): Dropping skb.
[  720.938997] blackhole_netdev_xmit(): Dropping skb.
[  720.939035] blackhole_netdev_xmit(): Dropping skb.