[    2.534686] ip (281) used greatest stack depth: 12344 bytes left
[   15.695769] mpls_gso: MPLS GSO support
[  984.733388] blackhole_netdev_xmit(): Dropping skb.
[  984.733460] blackhole_netdev_xmit(): Dropping skb.
[  984.733495] blackhole_netdev_xmit(): Dropping skb.
[  984.733528] blackhole_netdev_xmit(): Dropping skb.