[    2.723803] ip (280) used greatest stack depth: 12360 bytes left
[    6.105953] ip (447) used greatest stack depth: 12344 bytes left
[   16.195041] mpls_gso: MPLS GSO support
[  640.090977] ip (18496) used greatest stack depth: 12032 bytes left
[  693.244015] blackhole_netdev_xmit(): Dropping skb.
[  693.244097] blackhole_netdev_xmit(): Dropping skb.
[  693.244147] blackhole_netdev_xmit(): Dropping skb.
[  693.244198] blackhole_netdev_xmit(): Dropping skb.
[  810.705290] blackhole_netdev_xmit(): Dropping skb.
[  810.705346] blackhole_netdev_xmit(): Dropping skb.
[  810.705380] blackhole_netdev_xmit(): Dropping skb.
[  810.705424] blackhole_netdev_xmit(): Dropping skb.
[  919.062782] blackhole_netdev_xmit(): Dropping skb.
[  919.062850] blackhole_netdev_xmit(): Dropping skb.
[  919.062895] blackhole_netdev_xmit(): Dropping skb.
[  919.062940] blackhole_netdev_xmit(): Dropping skb.