[    2.122944] ip (248) used greatest stack depth: 12376 bytes left
[    2.772125] ip (282) used greatest stack depth: 12360 bytes left
[    2.823334] ip (286) used greatest stack depth: 12344 bytes left
[   15.881100] mpls_gso: MPLS GSO support
[  632.638163] ip (22296) used greatest stack depth: 12192 bytes left
[ 1064.942814] blackhole_netdev_xmit(): Dropping skb.
[ 1064.942879] blackhole_netdev_xmit(): Dropping skb.
[ 1064.942911] blackhole_netdev_xmit(): Dropping skb.
[ 1064.942943] blackhole_netdev_xmit(): Dropping skb.