[    2.123229] ip (293) used greatest stack depth: 12200 bytes left
[   13.771008] mpls_gso: MPLS GSO support
[  986.887777] blackhole_netdev_xmit(): Dropping skb.
[  986.887852] blackhole_netdev_xmit(): Dropping skb.
[  986.887906] blackhole_netdev_xmit(): Dropping skb.
[  986.887947] blackhole_netdev_xmit(): Dropping skb.