[    2.655237] ip (274) used greatest stack depth: 12344 bytes left
[ 1165.988750] blackhole_netdev_xmit(): Dropping skb.
[ 1165.988835] blackhole_netdev_xmit(): Dropping skb.
[ 1165.988878] blackhole_netdev_xmit(): Dropping skb.
[ 1165.988927] blackhole_netdev_xmit(): Dropping skb.
[ 1171.161757] blackhole_netdev_xmit(): Dropping skb.
[ 1171.161830] blackhole_netdev_xmit(): Dropping skb.
[ 1171.161883] blackhole_netdev_xmit(): Dropping skb.
[ 1171.161940] blackhole_netdev_xmit(): Dropping skb.