[    2.260333] ip (266) used greatest stack depth: 12416 bytes left
[    3.038897] ip (300) used greatest stack depth: 12384 bytes left
[   12.112881] ip (994) used greatest stack depth: 12360 bytes left
[   16.678688] mpls_gso: MPLS GSO support
[ 1142.524475] blackhole_netdev_xmit(): Dropping skb.
[ 1142.524544] blackhole_netdev_xmit(): Dropping skb.
[ 1142.524576] blackhole_netdev_xmit(): Dropping skb.
[ 1142.524610] blackhole_netdev_xmit(): Dropping skb.
[ 1221.802982] blackhole_netdev_xmit(): Dropping skb.
[ 1221.803034] blackhole_netdev_xmit(): Dropping skb.
[ 1221.803072] blackhole_netdev_xmit(): Dropping skb.
[ 1221.803111] blackhole_netdev_xmit(): Dropping skb.