[    2.096739] ip (294) used greatest stack depth: 12264 bytes left
[   11.847755] mpls_gso: MPLS GSO support
[ 1221.775279] blackhole_netdev_xmit(): Dropping skb.
[ 1221.775339] blackhole_netdev_xmit(): Dropping skb.
[ 1221.775381] blackhole_netdev_xmit(): Dropping skb.
[ 1221.775415] blackhole_netdev_xmit(): Dropping skb.