[    1.902941] ip (242) used greatest stack depth: 12368 bytes left
[    2.535013] ip (277) used greatest stack depth: 12352 bytes left
[    6.146187] ip (445) used greatest stack depth: 12336 bytes left
[   12.752251] ip (1040) used greatest stack depth: 12320 bytes left
[  793.343217] blackhole_netdev_xmit(): Dropping skb.
[  793.343289] blackhole_netdev_xmit(): Dropping skb.
[  793.343326] blackhole_netdev_xmit(): Dropping skb.
[  793.343361] blackhole_netdev_xmit(): Dropping skb.
[  817.180123] blackhole_netdev_xmit(): Dropping skb.
[  817.180191] blackhole_netdev_xmit(): Dropping skb.
[  817.180244] blackhole_netdev_xmit(): Dropping skb.
[  817.180296] blackhole_netdev_xmit(): Dropping skb.
[  837.344364] blackhole_netdev_xmit(): Dropping skb.
[  837.344414] blackhole_netdev_xmit(): Dropping skb.
[  837.344444] blackhole_netdev_xmit(): Dropping skb.
[  837.344470] blackhole_netdev_xmit(): Dropping skb.
[  901.812802] blackhole_netdev_xmit(): Dropping skb.
[  901.812855] blackhole_netdev_xmit(): Dropping skb.
[  901.812885] blackhole_netdev_xmit(): Dropping skb.
[  901.812916] blackhole_netdev_xmit(): Dropping skb.
[  986.231221] blackhole_netdev_xmit(): Dropping skb.
[  986.231297] blackhole_netdev_xmit(): Dropping skb.
[  986.231345] blackhole_netdev_xmit(): Dropping skb.
[  986.231387] blackhole_netdev_xmit(): Dropping skb.
[  996.614839] blackhole_netdev_xmit(): Dropping skb.
[  996.614890] blackhole_netdev_xmit(): Dropping skb.
[  996.614920] blackhole_netdev_xmit(): Dropping skb.
[  996.614946] blackhole_netdev_xmit(): Dropping skb.
[ 1043.962869] blackhole_netdev_xmit(): Dropping skb.
[ 1043.962927] blackhole_netdev_xmit(): Dropping skb.
[ 1043.962968] blackhole_netdev_xmit(): Dropping skb.
[ 1043.962994] blackhole_netdev_xmit(): Dropping skb.
[ 1054.494570] blackhole_netdev_xmit(): Dropping skb.
[ 1054.494632] blackhole_netdev_xmit(): Dropping skb.
[ 1054.494661] blackhole_netdev_xmit(): Dropping skb.
[ 1054.494694] blackhole_netdev_xmit(): Dropping skb.
[ 1114.007147] blackhole_netdev_xmit(): Dropping skb.
[ 1114.007207] blackhole_netdev_xmit(): Dropping skb.
[ 1114.007248] blackhole_netdev_xmit(): Dropping skb.
[ 1114.007283] blackhole_netdev_xmit(): Dropping skb.