[    2.643646] ip (280) used greatest stack depth: 12360 bytes left
[    2.697227] ip (284) used greatest stack depth: 12344 bytes left
[   17.437704] mpls_gso: MPLS GSO support
[  947.516757] blackhole_netdev_xmit(): Dropping skb.
[  947.516819] blackhole_netdev_xmit(): Dropping skb.
[  947.516852] blackhole_netdev_xmit(): Dropping skb.
[  947.516885] blackhole_netdev_xmit(): Dropping skb.