[    2.623348] ip (280) used greatest stack depth: 12344 bytes left
[   15.897942] mpls_gso: MPLS GSO support
[  899.755459] blackhole_netdev_xmit(): Dropping skb.
[  899.755524] blackhole_netdev_xmit(): Dropping skb.
[  899.755561] blackhole_netdev_xmit(): Dropping skb.
[  899.755595] blackhole_netdev_xmit(): Dropping skb.