[    2.339721] ip (250) used greatest stack depth: 12376 bytes left
[    3.047534] ip (281) used greatest stack depth: 12344 bytes left
[   17.623322] mpls_gso: MPLS GSO support
[  988.538903] blackhole_netdev_xmit(): Dropping skb.
[  988.538977] blackhole_netdev_xmit(): Dropping skb.
[  988.539015] blackhole_netdev_xmit(): Dropping skb.
[  988.539053] blackhole_netdev_xmit(): Dropping skb.