[    1.987364] ip (293) used greatest stack depth: 12272 bytes left
[   13.169580] mpls_gso: MPLS GSO support
[  916.798655] blackhole_netdev_xmit(): Dropping skb.
[  916.798759] blackhole_netdev_xmit(): Dropping skb.
[  916.798830] blackhole_netdev_xmit(): Dropping skb.
[  916.798881] blackhole_netdev_xmit(): Dropping skb.