[    2.004922] ip (248) used greatest stack depth: 12376 bytes left
[    2.638474] ip (282) used greatest stack depth: 12360 bytes left
[    2.680253] ip (286) used greatest stack depth: 12344 bytes left
[   14.499991] mpls_gso: MPLS GSO support
[  647.673455] ip (29965) used greatest stack depth: 12328 bytes left
[  908.705460] blackhole_netdev_xmit(): Dropping skb.
[  908.705512] blackhole_netdev_xmit(): Dropping skb.
[  908.705542] blackhole_netdev_xmit(): Dropping skb.
[  908.705580] blackhole_netdev_xmit(): Dropping skb.
[  920.033341] blackhole_netdev_xmit(): Dropping skb.
[  920.033389] blackhole_netdev_xmit(): Dropping skb.
[  920.033419] blackhole_netdev_xmit(): Dropping skb.
[  920.033444] blackhole_netdev_xmit(): Dropping skb.