[    2.674428] ip (277) used greatest stack depth: 12352 bytes left
[  966.569329] blackhole_netdev_xmit(): Dropping skb.
[  966.569403] blackhole_netdev_xmit(): Dropping skb.
[  966.569450] blackhole_netdev_xmit(): Dropping skb.
[  966.569482] blackhole_netdev_xmit(): Dropping skb.
[ 1095.548339] blackhole_netdev_xmit(): Dropping skb.
[ 1095.548427] blackhole_netdev_xmit(): Dropping skb.
[ 1095.548469] blackhole_netdev_xmit(): Dropping skb.
[ 1095.548521] blackhole_netdev_xmit(): Dropping skb.
[ 1116.370791] blackhole_netdev_xmit(): Dropping skb.
[ 1116.370860] blackhole_netdev_xmit(): Dropping skb.
[ 1116.370903] blackhole_netdev_xmit(): Dropping skb.
[ 1116.370953] blackhole_netdev_xmit(): Dropping skb.
[ 1137.744931] blackhole_netdev_xmit(): Dropping skb.
[ 1137.744992] blackhole_netdev_xmit(): Dropping skb.
[ 1137.745036] blackhole_netdev_xmit(): Dropping skb.
[ 1137.745099] blackhole_netdev_xmit(): Dropping skb.