[    2.290200] ip (246) used greatest stack depth: 12376 bytes left
[    3.043047] ip (280) used greatest stack depth: 12344 bytes left
[   10.790367] ip (770) used greatest stack depth: 12328 bytes left
[   18.483809] mpls_gso: MPLS GSO support
[  952.685990] blackhole_netdev_xmit(): Dropping skb.
[  952.686086] blackhole_netdev_xmit(): Dropping skb.
[  952.686140] blackhole_netdev_xmit(): Dropping skb.
[  952.686196] blackhole_netdev_xmit(): Dropping skb.