[    1.932214] ip (246) used greatest stack depth: 12368 bytes left
[    1.964239] ip (249) used greatest stack depth: 12320 bytes left
[  798.964605] blackhole_netdev_xmit(): Dropping skb.
[  798.964667] blackhole_netdev_xmit(): Dropping skb.
[  798.964699] blackhole_netdev_xmit(): Dropping skb.
[  798.964730] blackhole_netdev_xmit(): Dropping skb.
[ 1030.579804] blackhole_netdev_xmit(): Dropping skb.
[ 1030.579868] blackhole_netdev_xmit(): Dropping skb.
[ 1030.579902] blackhole_netdev_xmit(): Dropping skb.
[ 1030.579938] blackhole_netdev_xmit(): Dropping skb.
[ 1035.245036] blackhole_netdev_xmit(): Dropping skb.
[ 1035.245089] blackhole_netdev_xmit(): Dropping skb.
[ 1035.245119] blackhole_netdev_xmit(): Dropping skb.
[ 1035.245152] blackhole_netdev_xmit(): Dropping skb.
[ 1099.930405] blackhole_netdev_xmit(): Dropping skb.
[ 1099.930458] blackhole_netdev_xmit(): Dropping skb.
[ 1099.930486] blackhole_netdev_xmit(): Dropping skb.
[ 1099.930511] blackhole_netdev_xmit(): Dropping skb.