[    1.600335] ip (262) used greatest stack depth: 12264 bytes left
[    1.992791] ip (293) used greatest stack depth: 12232 bytes left
[   11.739345] mpls_gso: MPLS GSO support
[ 1123.183496] blackhole_netdev_xmit(): Dropping skb.
[ 1123.183556] blackhole_netdev_xmit(): Dropping skb.
[ 1123.183606] blackhole_netdev_xmit(): Dropping skb.
[ 1123.183645] blackhole_netdev_xmit(): Dropping skb.