[    2.497713] ip (272) used greatest stack depth: 12344 bytes left
[  714.118967] blackhole_netdev_xmit(): Dropping skb.
[  714.119057] blackhole_netdev_xmit(): Dropping skb.
[  714.119094] blackhole_netdev_xmit(): Dropping skb.
[  714.119129] blackhole_netdev_xmit(): Dropping skb.
[  893.273983] blackhole_netdev_xmit(): Dropping skb.
[  893.274073] blackhole_netdev_xmit(): Dropping skb.
[  893.274136] blackhole_netdev_xmit(): Dropping skb.
[  893.274177] blackhole_netdev_xmit(): Dropping skb.
[ 1034.716056] blackhole_netdev_xmit(): Dropping skb.
[ 1034.716121] blackhole_netdev_xmit(): Dropping skb.
[ 1034.716152] blackhole_netdev_xmit(): Dropping skb.
[ 1034.716186] blackhole_netdev_xmit(): Dropping skb.
[ 1045.728985] blackhole_netdev_xmit(): Dropping skb.
[ 1045.729034] blackhole_netdev_xmit(): Dropping skb.
[ 1045.729066] blackhole_netdev_xmit(): Dropping skb.
[ 1045.729093] blackhole_netdev_xmit(): Dropping skb.
[ 1153.925807] blackhole_netdev_xmit(): Dropping skb.
[ 1153.925876] blackhole_netdev_xmit(): Dropping skb.
[ 1153.925907] blackhole_netdev_xmit(): Dropping skb.
[ 1153.925942] blackhole_netdev_xmit(): Dropping skb.