[    1.541198] ip (260) used greatest stack depth: 12280 bytes left
[   11.440963] mpls_gso: MPLS GSO support
[   19.461335] ip (2712) used greatest stack depth: 12184 bytes left
[ 1236.835263] blackhole_netdev_xmit(): Dropping skb.
[ 1236.835356] blackhole_netdev_xmit(): Dropping skb.
[ 1236.835403] blackhole_netdev_xmit(): Dropping skb.
[ 1236.835456] blackhole_netdev_xmit(): Dropping skb.