[    2.740476] ip (300) used greatest stack depth: 12288 bytes left
[    8.063119] ip (684) used greatest stack depth: 12160 bytes left
[   15.477024] mpls_gso: MPLS GSO support
[ 1180.348481] blackhole_netdev_xmit(): Dropping skb.
[ 1180.348557] blackhole_netdev_xmit(): Dropping skb.
[ 1180.348605] blackhole_netdev_xmit(): Dropping skb.
[ 1180.348650] blackhole_netdev_xmit(): Dropping skb.