[    2.058451] ip (271) used greatest stack depth: 12304 bytes left
[    2.571728] ip (302) used greatest stack depth: 12288 bytes left
[   14.884937] mpls_gso: MPLS GSO support
[   20.836776] ip (2224) used greatest stack depth: 12216 bytes left
[  929.565423] blackhole_netdev_xmit(): Dropping skb.
[  929.565502] blackhole_netdev_xmit(): Dropping skb.
[  929.565547] blackhole_netdev_xmit(): Dropping skb.
[  929.565587] blackhole_netdev_xmit(): Dropping skb.