[    1.983096] ip (245) used greatest stack depth: 12368 bytes left
[    2.019610] ip (248) used greatest stack depth: 12320 bytes left
[    2.642489] ip (280) used greatest stack depth: 12184 bytes left
[  685.807588] blackhole_netdev_xmit(): Dropping skb.
[  685.807677] blackhole_netdev_xmit(): Dropping skb.
[  685.807727] blackhole_netdev_xmit(): Dropping skb.
[  685.807790] blackhole_netdev_xmit(): Dropping skb.
[  737.865407] blackhole_netdev_xmit(): Dropping skb.
[  737.865466] blackhole_netdev_xmit(): Dropping skb.
[  737.865503] blackhole_netdev_xmit(): Dropping skb.
[  737.865555] blackhole_netdev_xmit(): Dropping skb.
[  916.309062] blackhole_netdev_xmit(): Dropping skb.
[  916.309142] blackhole_netdev_xmit(): Dropping skb.
[  916.309216] blackhole_netdev_xmit(): Dropping skb.
[  916.309272] blackhole_netdev_xmit(): Dropping skb.
[  924.461941] blackhole_netdev_xmit(): Dropping skb.
[  924.461941] blackhole_netdev_xmit(): Dropping skb.
[  924.461945] blackhole_netdev_xmit(): Dropping skb.
[  924.461945] blackhole_netdev_xmit(): Dropping skb.
[  924.462002] blackhole_netdev_xmit(): Dropping skb.
[  924.462003] blackhole_netdev_xmit(): Dropping skb.
[  924.462051] blackhole_netdev_xmit(): Dropping skb.
[  934.221483] blackhole_netdev_xmit(): Dropping skb.
[  934.221534] blackhole_netdev_xmit(): Dropping skb.
[  934.221572] blackhole_netdev_xmit(): Dropping skb.
[  934.221606] blackhole_netdev_xmit(): Dropping skb.
[  994.545997] blackhole_netdev_xmit(): Dropping skb.
[  994.546065] blackhole_netdev_xmit(): Dropping skb.
[  994.546099] blackhole_netdev_xmit(): Dropping skb.
[  994.546134] blackhole_netdev_xmit(): Dropping skb.
[ 1104.947817] blackhole_netdev_xmit(): Dropping skb.
[ 1104.947905] blackhole_netdev_xmit(): Dropping skb.
[ 1104.947959] blackhole_netdev_xmit(): Dropping skb.
[ 1104.948009] blackhole_netdev_xmit(): Dropping skb.