[    2.582869] ip (277) used greatest stack depth: 12360 bytes left
[    2.638412] ip (281) used greatest stack depth: 12344 bytes left
[  862.027819] blackhole_netdev_xmit(): Dropping skb.
[  862.027889] blackhole_netdev_xmit(): Dropping skb.
[  862.027926] blackhole_netdev_xmit(): Dropping skb.
[  862.027961] blackhole_netdev_xmit(): Dropping skb.
[ 1036.584748] blackhole_netdev_xmit(): Dropping skb.
[ 1036.584825] blackhole_netdev_xmit(): Dropping skb.
[ 1036.584872] blackhole_netdev_xmit(): Dropping skb.
[ 1036.584914] blackhole_netdev_xmit(): Dropping skb.
[ 1126.836610] blackhole_netdev_xmit(): Dropping skb.
[ 1126.836671] blackhole_netdev_xmit(): Dropping skb.
[ 1126.836710] blackhole_netdev_xmit(): Dropping skb.
[ 1126.836751] blackhole_netdev_xmit(): Dropping skb.
[ 1158.231164] blackhole_netdev_xmit(): Dropping skb.
[ 1158.231219] blackhole_netdev_xmit(): Dropping skb.
[ 1158.231257] blackhole_netdev_xmit(): Dropping skb.
[ 1158.231301] blackhole_netdev_xmit(): Dropping skb.
[ 1207.601176] blackhole_netdev_xmit(): Dropping skb.
[ 1207.601237] blackhole_netdev_xmit(): Dropping skb.
[ 1207.601274] blackhole_netdev_xmit(): Dropping skb.
[ 1207.601307] blackhole_netdev_xmit(): Dropping skb.