[    1.940320] ip (246) used greatest stack depth: 12368 bytes left
[    2.005908] ip (252) used greatest stack depth: 12256 bytes left
[   17.238756] mpls_gso: MPLS GSO support
[ 1000.597477] blackhole_netdev_xmit(): Dropping skb.
[ 1000.597544] blackhole_netdev_xmit(): Dropping skb.
[ 1000.597574] blackhole_netdev_xmit(): Dropping skb.
[ 1000.597606] blackhole_netdev_xmit(): Dropping skb.
[ 1092.511108] blackhole_netdev_xmit(): Dropping skb.
[ 1092.511183] blackhole_netdev_xmit(): Dropping skb.
[ 1092.511225] blackhole_netdev_xmit(): Dropping skb.
[ 1092.511263] blackhole_netdev_xmit(): Dropping skb.
[ 1205.715733] blackhole_netdev_xmit(): Dropping skb.
[ 1205.715791] blackhole_netdev_xmit(): Dropping skb.
[ 1205.715827] blackhole_netdev_xmit(): Dropping skb.
[ 1205.715865] blackhole_netdev_xmit(): Dropping skb.