[    1.728487] ip (252) used greatest stack depth: 12280 bytes left
[   13.522752] mpls_gso: MPLS GSO support
[  807.066830] blackhole_netdev_xmit(): Dropping skb.
[  807.066926] blackhole_netdev_xmit(): Dropping skb.
[  807.066987] blackhole_netdev_xmit(): Dropping skb.
[  807.067047] blackhole_netdev_xmit(): Dropping skb.