[    2.210011] ip (248) used greatest stack depth: 12376 bytes left
[    2.939369] ip (279) used greatest stack depth: 12344 bytes left
[   17.725966] ip (1225) used greatest stack depth: 12192 bytes left
[   18.941743] mpls_gso: MPLS GSO support
[  729.954959] blackhole_netdev_xmit(): Dropping skb.
[  729.955034] blackhole_netdev_xmit(): Dropping skb.
[  729.955079] blackhole_netdev_xmit(): Dropping skb.
[  729.955119] blackhole_netdev_xmit(): Dropping skb.
[  742.947974] blackhole_netdev_xmit(): Dropping skb.
[  742.948054] blackhole_netdev_xmit(): Dropping skb.
[  742.948110] blackhole_netdev_xmit(): Dropping skb.
[  742.948164] blackhole_netdev_xmit(): Dropping skb.