[    1.801657] ip (251) used greatest stack depth: 12376 bytes left
[    2.386043] ip (282) used greatest stack depth: 12344 bytes left
[   15.408213] mpls_gso: MPLS GSO support
[   25.407100] ip (2538) used greatest stack depth: 12328 bytes left
[  667.436389] blackhole_netdev_xmit(): Dropping skb.
[  667.436438] blackhole_netdev_xmit(): Dropping skb.
[  667.436468] blackhole_netdev_xmit(): Dropping skb.
[  667.436502] blackhole_netdev_xmit(): Dropping skb.
[  939.196605] blackhole_netdev_xmit(): Dropping skb.
[  939.196659] blackhole_netdev_xmit(): Dropping skb.
[  939.196690] blackhole_netdev_xmit(): Dropping skb.
[  939.196721] blackhole_netdev_xmit(): Dropping skb.