[    2.023708] ip (295) used greatest stack depth: 12200 bytes left
[    6.330331] ip (651) used greatest stack depth: 12184 bytes left
[   12.519124] mpls_gso: MPLS GSO support
[  829.692360] blackhole_netdev_xmit(): Dropping skb.
[  829.692427] blackhole_netdev_xmit(): Dropping skb.
[  829.692478] blackhole_netdev_xmit(): Dropping skb.
[  829.692521] blackhole_netdev_xmit(): Dropping skb.