[    2.598437] ip (274) used greatest stack depth: 12344 bytes left
[  984.232169] blackhole_netdev_xmit(): Dropping skb.
[  984.232293] blackhole_netdev_xmit(): Dropping skb.
[  984.232352] blackhole_netdev_xmit(): Dropping skb.
[  984.232406] blackhole_netdev_xmit(): Dropping skb.
[ 1011.156621] blackhole_netdev_xmit(): Dropping skb.
[ 1011.156694] blackhole_netdev_xmit(): Dropping skb.
[ 1011.156735] blackhole_netdev_xmit(): Dropping skb.
[ 1011.156782] blackhole_netdev_xmit(): Dropping skb.
[ 1030.682352] blackhole_netdev_xmit(): Dropping skb.
[ 1030.682418] blackhole_netdev_xmit(): Dropping skb.
[ 1030.682459] blackhole_netdev_xmit(): Dropping skb.
[ 1030.682501] blackhole_netdev_xmit(): Dropping skb.