[    2.311371] ip (276) used greatest stack depth: 12336 bytes left
[   12.058963] ip (1144) used greatest stack depth: 12320 bytes left
[  713.317814] blackhole_netdev_xmit(): Dropping skb.
[  713.317890] blackhole_netdev_xmit(): Dropping skb.
[  713.317923] blackhole_netdev_xmit(): Dropping skb.
[  713.317959] blackhole_netdev_xmit(): Dropping skb.
[ 1019.082664] blackhole_netdev_xmit(): Dropping skb.
[ 1019.082734] blackhole_netdev_xmit(): Dropping skb.
[ 1019.082770] blackhole_netdev_xmit(): Dropping skb.
[ 1019.082809] blackhole_netdev_xmit(): Dropping skb.
[ 1153.287547] blackhole_netdev_xmit(): Dropping skb.
[ 1153.287601] blackhole_netdev_xmit(): Dropping skb.
[ 1153.287648] blackhole_netdev_xmit(): Dropping skb.
[ 1153.287684] blackhole_netdev_xmit(): Dropping skb.
[ 1175.052808] blackhole_netdev_xmit(): Dropping skb.
[ 1175.052865] blackhole_netdev_xmit(): Dropping skb.
[ 1175.052900] blackhole_netdev_xmit(): Dropping skb.
[ 1175.052948] blackhole_netdev_xmit(): Dropping skb.
[ 1192.311734] blackhole_netdev_xmit(): Dropping skb.
[ 1192.311791] blackhole_netdev_xmit(): Dropping skb.
[ 1192.311841] blackhole_netdev_xmit(): Dropping skb.
[ 1192.311891] blackhole_netdev_xmit(): Dropping skb.
[ 1228.485548] blackhole_netdev_xmit(): Dropping skb.
[ 1228.485615] blackhole_netdev_xmit(): Dropping skb.
[ 1228.485656] blackhole_netdev_xmit(): Dropping skb.
[ 1228.485695] blackhole_netdev_xmit(): Dropping skb.