[    2.271589] ip (275) used greatest stack depth: 12320 bytes left
[   12.273209] ip (1184) used greatest stack depth: 12272 bytes left
[  658.806669] blackhole_netdev_xmit(): Dropping skb.
[  658.806744] blackhole_netdev_xmit(): Dropping skb.
[  658.806782] blackhole_netdev_xmit(): Dropping skb.
[  658.806811] blackhole_netdev_xmit(): Dropping skb.
[  742.765630] blackhole_netdev_xmit(): Dropping skb.
[  742.765686] blackhole_netdev_xmit(): Dropping skb.
[  742.765721] blackhole_netdev_xmit(): Dropping skb.
[  742.765755] blackhole_netdev_xmit(): Dropping skb.
[  843.590468] blackhole_netdev_xmit(): Dropping skb.
[  843.590522] blackhole_netdev_xmit(): Dropping skb.
[  843.590552] blackhole_netdev_xmit(): Dropping skb.
[  843.590579] blackhole_netdev_xmit(): Dropping skb.
[  849.018920] blackhole_netdev_xmit(): Dropping skb.
[  849.018990] blackhole_netdev_xmit(): Dropping skb.
[  849.019035] blackhole_netdev_xmit(): Dropping skb.
[  849.019075] blackhole_netdev_xmit(): Dropping skb.
[  865.353004] blackhole_netdev_xmit(): Dropping skb.
[  865.353066] blackhole_netdev_xmit(): Dropping skb.
[  865.353097] blackhole_netdev_xmit(): Dropping skb.
[  865.353126] blackhole_netdev_xmit(): Dropping skb.
[  897.032518] blackhole_netdev_xmit(): Dropping skb.
[  897.032573] blackhole_netdev_xmit(): Dropping skb.
[  897.032605] blackhole_netdev_xmit(): Dropping skb.
[  897.032639] blackhole_netdev_xmit(): Dropping skb.
[  926.608268] blackhole_netdev_xmit(): Dropping skb.
[  926.608333] blackhole_netdev_xmit(): Dropping skb.
[  926.608371] blackhole_netdev_xmit(): Dropping skb.
[  926.608403] blackhole_netdev_xmit(): Dropping skb.
[  936.669333] blackhole_netdev_xmit(): Dropping skb.
[  936.669387] blackhole_netdev_xmit(): Dropping skb.
[  936.669420] blackhole_netdev_xmit(): Dropping skb.
[  936.669451] blackhole_netdev_xmit(): Dropping skb.