[    2.025303] ip (294) used greatest stack depth: 12232 bytes left
[   10.896819] mpls_gso: MPLS GSO support
[  624.606210] ip (6976) used greatest stack depth: 12216 bytes left
[ 1216.664585] blackhole_netdev_xmit(): Dropping skb.
[ 1216.664682] blackhole_netdev_xmit(): Dropping skb.
[ 1216.664752] blackhole_netdev_xmit(): Dropping skb.
[ 1216.664805] blackhole_netdev_xmit(): Dropping skb.