[    2.051513] ip (246) used greatest stack depth: 12376 bytes left
[    2.739935] ip (280) used greatest stack depth: 12344 bytes left
[   18.442334] mpls_gso: MPLS GSO support
[  953.492774] blackhole_netdev_xmit(): Dropping skb.
[  953.492842] blackhole_netdev_xmit(): Dropping skb.
[  953.492872] blackhole_netdev_xmit(): Dropping skb.
[  953.492898] blackhole_netdev_xmit(): Dropping skb.