[    1.824497] ip (241) used greatest stack depth: 12304 bytes left
[ 1024.288560] blackhole_netdev_xmit(): Dropping skb.
[ 1024.288653] blackhole_netdev_xmit(): Dropping skb.
[ 1024.288707] blackhole_netdev_xmit(): Dropping skb.
[ 1024.288762] blackhole_netdev_xmit(): Dropping skb.
[ 1037.038478] blackhole_netdev_xmit(): Dropping skb.
[ 1037.038529] blackhole_netdev_xmit(): Dropping skb.
[ 1037.038562] blackhole_netdev_xmit(): Dropping skb.
[ 1037.038592] blackhole_netdev_xmit(): Dropping skb.
[ 1038.652137] blackhole_netdev_xmit(): Dropping skb.
[ 1038.652214] blackhole_netdev_xmit(): Dropping skb.
[ 1038.652272] blackhole_netdev_xmit(): Dropping skb.
[ 1038.652335] blackhole_netdev_xmit(): Dropping skb.
[ 1142.534729] blackhole_netdev_xmit(): Dropping skb.
[ 1142.534791] blackhole_netdev_xmit(): Dropping skb.
[ 1142.534834] blackhole_netdev_xmit(): Dropping skb.
[ 1142.534881] blackhole_netdev_xmit(): Dropping skb.