[    2.001493] ip (250) used greatest stack depth: 12376 bytes left
[    2.628752] ip (281) used greatest stack depth: 12360 bytes left
[    6.535453] ip (465) used greatest stack depth: 12344 bytes left
[   15.808116] mpls_gso: MPLS GSO support
[   16.945735] ip (1458) used greatest stack depth: 12288 bytes left
[  866.585666] blackhole_netdev_xmit(): Dropping skb.
[  866.585733] blackhole_netdev_xmit(): Dropping skb.
[  866.585764] blackhole_netdev_xmit(): Dropping skb.
[  866.585799] blackhole_netdev_xmit(): Dropping skb.
[  870.474362] blackhole_netdev_xmit(): Dropping skb.
[  870.474410] blackhole_netdev_xmit(): Dropping skb.
[  870.474440] blackhole_netdev_xmit(): Dropping skb.
[  870.474466] blackhole_netdev_xmit(): Dropping skb.
[  912.227260] blackhole_netdev_xmit(): Dropping skb.
[  912.227310] blackhole_netdev_xmit(): Dropping skb.
[  912.227341] blackhole_netdev_xmit(): Dropping skb.
[  912.227380] blackhole_netdev_xmit(): Dropping skb.