[   14.416013] ip (282) used greatest stack depth: 12344 bytes left
[   27.486711] mpls_gso: MPLS GSO support
[   40.875288] ip (2704) used greatest stack depth: 12288 bytes left
[  675.603640] blackhole_netdev_xmit(): Dropping skb.
[  675.603732] blackhole_netdev_xmit(): Dropping skb.
[  675.603797] blackhole_netdev_xmit(): Dropping skb.
[  675.603855] blackhole_netdev_xmit(): Dropping skb.
[ 1024.649887] blackhole_netdev_xmit(): Dropping skb.
[ 1024.649963] blackhole_netdev_xmit(): Dropping skb.
[ 1024.650014] blackhole_netdev_xmit(): Dropping skb.
[ 1024.650055] blackhole_netdev_xmit(): Dropping skb.