[    1.947834] ip (245) used greatest stack depth: 12336 bytes left
[  648.944174] ip (24592) used greatest stack depth: 12296 bytes left
[  681.874924] blackhole_netdev_xmit(): Dropping skb.
[  681.874994] blackhole_netdev_xmit(): Dropping skb.
[  681.875027] blackhole_netdev_xmit(): Dropping skb.
[  681.875061] blackhole_netdev_xmit(): Dropping skb.
[  716.169231] blackhole_netdev_xmit(): Dropping skb.
[  716.169294] blackhole_netdev_xmit(): Dropping skb.
[  716.169333] blackhole_netdev_xmit(): Dropping skb.
[  716.169369] blackhole_netdev_xmit(): Dropping skb.
[  755.254228] blackhole_netdev_xmit(): Dropping skb.
[  755.254298] blackhole_netdev_xmit(): Dropping skb.
[  755.254340] blackhole_netdev_xmit(): Dropping skb.
[  755.254396] blackhole_netdev_xmit(): Dropping skb.
[  843.417462] blackhole_netdev_xmit(): Dropping skb.
[  843.417514] blackhole_netdev_xmit(): Dropping skb.
[  843.417545] blackhole_netdev_xmit(): Dropping skb.
[  843.417579] blackhole_netdev_xmit(): Dropping skb.
[  855.056370] blackhole_netdev_xmit(): Dropping skb.
[  855.056420] blackhole_netdev_xmit(): Dropping skb.
[  855.056451] blackhole_netdev_xmit(): Dropping skb.
[  855.056477] blackhole_netdev_xmit(): Dropping skb.
[  862.146693] blackhole_netdev_xmit(): Dropping skb.
[  862.146744] blackhole_netdev_xmit(): Dropping skb.
[  862.146775] blackhole_netdev_xmit(): Dropping skb.
[  862.146808] blackhole_netdev_xmit(): Dropping skb.
[  869.392703] blackhole_netdev_xmit(): Dropping skb.
[  869.392768] blackhole_netdev_xmit(): Dropping skb.
[  869.392806] blackhole_netdev_xmit(): Dropping skb.
[  869.392845] blackhole_netdev_xmit(): Dropping skb.
[ 1157.590786] blackhole_netdev_xmit(): Dropping skb.
[ 1157.590849] blackhole_netdev_xmit(): Dropping skb.
[ 1157.590878] blackhole_netdev_xmit(): Dropping skb.
[ 1157.590904] blackhole_netdev_xmit(): Dropping skb.
[ 1176.323029] blackhole_netdev_xmit(): Dropping skb.
[ 1176.323101] blackhole_netdev_xmit(): Dropping skb.
[ 1176.323140] blackhole_netdev_xmit(): Dropping skb.
[ 1176.323175] blackhole_netdev_xmit(): Dropping skb.
[ 1193.532714] blackhole_netdev_xmit(): Dropping skb.
[ 1193.532774] blackhole_netdev_xmit(): Dropping skb.
[ 1193.532808] blackhole_netdev_xmit(): Dropping skb.
[ 1193.532839] blackhole_netdev_xmit(): Dropping skb.