[    2.553618] ip (281) used greatest stack depth: 12344 bytes left
[    2.765217] ip (295) used greatest stack depth: 12064 bytes left
[   14.192408] mpls_gso: MPLS GSO support
[ 1024.483495] blackhole_netdev_xmit(): Dropping skb.
[ 1024.483671] blackhole_netdev_xmit(): Dropping skb.
[ 1024.483710] blackhole_netdev_xmit(): Dropping skb.
[ 1024.483745] blackhole_netdev_xmit(): Dropping skb.