[   12.423482] mpls_gso: MPLS GSO support
[   20.773331] ip (2553) used greatest stack depth: 12232 bytes left
[  933.550042] blackhole_netdev_xmit(): Dropping skb.
[  933.550129] blackhole_netdev_xmit(): Dropping skb.
[  933.550184] blackhole_netdev_xmit(): Dropping skb.
[  933.550231] blackhole_netdev_xmit(): Dropping skb.