[    2.182317] ip (255) used greatest stack depth: 12416 bytes left
[    2.880369] ip (286) used greatest stack depth: 12384 bytes left
[   17.448970] mpls_gso: MPLS GSO support
[ 1167.685816] blackhole_netdev_xmit(): Dropping skb.
[ 1167.685890] blackhole_netdev_xmit(): Dropping skb.
[ 1167.685924] blackhole_netdev_xmit(): Dropping skb.
[ 1167.685966] blackhole_netdev_xmit(): Dropping skb.