[    2.522563] ip (280) used greatest stack depth: 12344 bytes left
[   15.318446] mpls_gso: MPLS GSO support
[   21.462291] ip (2193) used greatest stack depth: 12064 bytes left
[  941.547756] blackhole_netdev_xmit(): Dropping skb.
[  941.547912] blackhole_netdev_xmit(): Dropping skb.
[  941.547946] blackhole_netdev_xmit(): Dropping skb.
[  941.547977] blackhole_netdev_xmit(): Dropping skb.