[    2.046148] ip (293) used greatest stack depth: 12248 bytes left
[   11.876764] mpls_gso: MPLS GSO support
[  720.748721] blackhole_netdev_xmit(): Dropping skb.
[  720.748833] blackhole_netdev_xmit(): Dropping skb.
[  720.748906] blackhole_netdev_xmit(): Dropping skb.
[  720.748970] blackhole_netdev_xmit(): Dropping skb.