[    2.120668] ip (293) used greatest stack depth: 12272 bytes left
[   12.380698] mpls_gso: MPLS GSO support
[   13.154494] ip (1463) used greatest stack depth: 12184 bytes left
[ 1013.402819] blackhole_netdev_xmit(): Dropping skb.
[ 1013.402874] blackhole_netdev_xmit(): Dropping skb.
[ 1013.402913] blackhole_netdev_xmit(): Dropping skb.
[ 1013.402950] blackhole_netdev_xmit(): Dropping skb.