[    2.721927] ip (281) used greatest stack depth: 12344 bytes left
[   18.521217] mpls_gso: MPLS GSO support
[  650.174488] ip (17308) used greatest stack depth: 12304 bytes left
[  685.136332] blackhole_netdev_xmit(): Dropping skb.
[  685.136400] blackhole_netdev_xmit(): Dropping skb.
[  685.136435] blackhole_netdev_xmit(): Dropping skb.
[  685.136476] blackhole_netdev_xmit(): Dropping skb.
[  871.297559] blackhole_netdev_xmit(): Dropping skb.
[  871.297640] blackhole_netdev_xmit(): Dropping skb.
[  871.297690] blackhole_netdev_xmit(): Dropping skb.
[  871.297739] blackhole_netdev_xmit(): Dropping skb.
[  873.343153] blackhole_netdev_xmit(): Dropping skb.
[  873.343227] blackhole_netdev_xmit(): Dropping skb.
[  873.343269] blackhole_netdev_xmit(): Dropping skb.
[  873.343317] blackhole_netdev_xmit(): Dropping skb.