[    4.003329] ip (282) used greatest stack depth: 12344 bytes left
[   21.419608] mpls_gso: MPLS GSO support
[   22.908274] ip (1459) used greatest stack depth: 12288 bytes left
[ 1029.989066] blackhole_netdev_xmit(): Dropping skb.
[ 1029.989135] blackhole_netdev_xmit(): Dropping skb.
[ 1029.989165] blackhole_netdev_xmit(): Dropping skb.
[ 1029.989192] blackhole_netdev_xmit(): Dropping skb.