[    1.904647] ip (286) used greatest stack depth: 12200 bytes left
[   12.173320] mpls_gso: MPLS GSO support
[  840.102115] blackhole_netdev_xmit(): Dropping skb.
[  840.102216] blackhole_netdev_xmit(): Dropping skb.
[  840.102263] blackhole_netdev_xmit(): Dropping skb.
[  840.102311] blackhole_netdev_xmit(): Dropping skb.