[    2.536756] ip (282) used greatest stack depth: 12344 bytes left
[   16.499777] mpls_gso: MPLS GSO support
[  688.367082] blackhole_netdev_xmit(): Dropping skb.
[  688.367159] blackhole_netdev_xmit(): Dropping skb.
[  688.367208] blackhole_netdev_xmit(): Dropping skb.
[  688.367256] blackhole_netdev_xmit(): Dropping skb.
[  817.702669] blackhole_netdev_xmit(): Dropping skb.
[  817.702739] blackhole_netdev_xmit(): Dropping skb.
[  817.702785] blackhole_netdev_xmit(): Dropping skb.
[  817.702833] blackhole_netdev_xmit(): Dropping skb.