[    1.727860] ip (252) used greatest stack depth: 12280 bytes left
[   13.650757] mpls_gso: MPLS GSO support
[  946.000881] blackhole_netdev_xmit(): Dropping skb.
[  946.000964] blackhole_netdev_xmit(): Dropping skb.
[  946.001008] blackhole_netdev_xmit(): Dropping skb.
[  946.001056] blackhole_netdev_xmit(): Dropping skb.