[    2.232892] ip (246) used greatest stack depth: 12376 bytes left
[    2.915122] ip (280) used greatest stack depth: 12344 bytes left
[   17.072271] mpls_gso: MPLS GSO support
[  684.592468] blackhole_netdev_xmit(): Dropping skb.
[  684.592540] blackhole_netdev_xmit(): Dropping skb.
[  684.592581] blackhole_netdev_xmit(): Dropping skb.
[  684.592623] blackhole_netdev_xmit(): Dropping skb.
[  992.905095] blackhole_netdev_xmit(): Dropping skb.
[  992.905167] blackhole_netdev_xmit(): Dropping skb.
[  992.905203] blackhole_netdev_xmit(): Dropping skb.
[  992.905237] blackhole_netdev_xmit(): Dropping skb.