[    1.817471] ip (252) used greatest stack depth: 12288 bytes left
[    2.362231] ip (286) used greatest stack depth: 12272 bytes left
[   14.054436] mpls_gso: MPLS GSO support
[   23.102528] ip (2438) used greatest stack depth: 12248 bytes left
[  918.112369] blackhole_netdev_xmit(): Dropping skb.
[  918.112510] blackhole_netdev_xmit(): Dropping skb.
[  918.112548] blackhole_netdev_xmit(): Dropping skb.
[  918.112592] blackhole_netdev_xmit(): Dropping skb.