[    2.032427] ip (248) used greatest stack depth: 12376 bytes left
[    2.695432] ip (282) used greatest stack depth: 12344 bytes left
[   17.106660] mpls_gso: MPLS GSO support
[  720.664209] blackhole_netdev_xmit(): Dropping skb.
[  720.664287] blackhole_netdev_xmit(): Dropping skb.
[  720.664341] blackhole_netdev_xmit(): Dropping skb.
[  720.664387] blackhole_netdev_xmit(): Dropping skb.
[ 1057.513186] blackhole_netdev_xmit(): Dropping skb.
[ 1057.513264] blackhole_netdev_xmit(): Dropping skb.
[ 1057.513316] blackhole_netdev_xmit(): Dropping skb.
[ 1057.513365] blackhole_netdev_xmit(): Dropping skb.