[    2.318672] ip (275) used greatest stack depth: 12352 bytes left
[   12.775412] ip (1169) used greatest stack depth: 12040 bytes left
[  787.909240] blackhole_netdev_xmit(): Dropping skb.
[  787.909304] blackhole_netdev_xmit(): Dropping skb.
[  787.909340] blackhole_netdev_xmit(): Dropping skb.
[  787.909375] blackhole_netdev_xmit(): Dropping skb.
[  867.573183] blackhole_netdev_xmit(): Dropping skb.
[  867.573235] blackhole_netdev_xmit(): Dropping skb.
[  867.573266] blackhole_netdev_xmit(): Dropping skb.
[  867.573292] blackhole_netdev_xmit(): Dropping skb.
[  905.706921] blackhole_netdev_xmit(): Dropping skb.
[  905.706970] blackhole_netdev_xmit(): Dropping skb.
[  905.707001] blackhole_netdev_xmit(): Dropping skb.
[  905.707027] blackhole_netdev_xmit(): Dropping skb.
[  932.071486] blackhole_netdev_xmit(): Dropping skb.
[  932.071542] blackhole_netdev_xmit(): Dropping skb.
[  932.071573] blackhole_netdev_xmit(): Dropping skb.
[  932.071609] blackhole_netdev_xmit(): Dropping skb.
[  958.262021] blackhole_netdev_xmit(): Dropping skb.
[  958.262092] blackhole_netdev_xmit(): Dropping skb.
[  958.262140] blackhole_netdev_xmit(): Dropping skb.
[  958.262181] blackhole_netdev_xmit(): Dropping skb.
[ 1215.596815] blackhole_netdev_xmit(): Dropping skb.
[ 1215.596883] blackhole_netdev_xmit(): Dropping skb.
[ 1215.596914] blackhole_netdev_xmit(): Dropping skb.
[ 1215.596940] blackhole_netdev_xmit(): Dropping skb.
[ 1247.188324] blackhole_netdev_xmit(): Dropping skb.
[ 1247.188381] blackhole_netdev_xmit(): Dropping skb.
[ 1247.188415] blackhole_netdev_xmit(): Dropping skb.
[ 1247.188453] blackhole_netdev_xmit(): Dropping skb.