[    2.471584] ip (282) used greatest stack depth: 12272 bytes left
[    5.768863] ip (465) used greatest stack depth: 12144 bytes left
[   14.465568] mpls_gso: MPLS GSO support
[ 1221.122772] blackhole_netdev_xmit(): Dropping skb.
[ 1221.122851] blackhole_netdev_xmit(): Dropping skb.
[ 1221.122887] blackhole_netdev_xmit(): Dropping skb.
[ 1221.122923] blackhole_netdev_xmit(): Dropping skb.