[    2.033830] ip (247) used greatest stack depth: 12376 bytes left
[    2.711784] ip (281) used greatest stack depth: 12344 bytes left
[   16.773952] mpls_gso: MPLS GSO support
[ 1132.054911] blackhole_netdev_xmit(): Dropping skb.
[ 1132.054978] blackhole_netdev_xmit(): Dropping skb.
[ 1132.055010] blackhole_netdev_xmit(): Dropping skb.
[ 1132.055041] blackhole_netdev_xmit(): Dropping skb.