[    1.662645] ip (260) used greatest stack depth: 12232 bytes left
[   11.681919] mpls_gso: MPLS GSO support
[ 1148.392280] blackhole_netdev_xmit(): Dropping skb.
[ 1148.392392] blackhole_netdev_xmit(): Dropping skb.
[ 1148.392459] blackhole_netdev_xmit(): Dropping skb.
[ 1148.392515] blackhole_netdev_xmit(): Dropping skb.