[   47.014130][  T313] ip (313) used greatest stack depth: 23216 bytes left
[ 1311.376396][ T9794] blackhole_netdev_xmit(): Dropping skb.
[ 1311.376986][ T9794] blackhole_netdev_xmit(): Dropping skb.
[ 1311.377220][ T9794] blackhole_netdev_xmit(): Dropping skb.
[ 1311.377522][ T9794] blackhole_netdev_xmit(): Dropping skb.