[    1.867927] ip (249) used greatest stack depth: 12376 bytes left
[    2.379269] ip (280) used greatest stack depth: 12344 bytes left
[   12.211440] ip (1110) used greatest stack depth: 12192 bytes left
[   14.839028] mpls_gso: MPLS GSO support
[  679.860311] blackhole_netdev_xmit(): Dropping skb.
[  679.860388] blackhole_netdev_xmit(): Dropping skb.
[  679.860432] blackhole_netdev_xmit(): Dropping skb.
[  679.860466] blackhole_netdev_xmit(): Dropping skb.
[  973.240430] blackhole_netdev_xmit(): Dropping skb.
[  973.240502] blackhole_netdev_xmit(): Dropping skb.
[  973.240551] blackhole_netdev_xmit(): Dropping skb.
[  973.240600] blackhole_netdev_xmit(): Dropping skb.