[  842.765975] ip (535) used greatest stack depth: 12288 bytes left
[  950.636696] blackhole_netdev_xmit(): Dropping skb.
[  950.636748] blackhole_netdev_xmit(): Dropping skb.
[  950.636779] blackhole_netdev_xmit(): Dropping skb.
[  950.636814] blackhole_netdev_xmit(): Dropping skb.
[  992.671627] blackhole_netdev_xmit(): Dropping skb.
[  992.671691] blackhole_netdev_xmit(): Dropping skb.
[  992.671725] blackhole_netdev_xmit(): Dropping skb.
[  992.671755] blackhole_netdev_xmit(): Dropping skb.
[ 1307.083147] blackhole_netdev_xmit(): Dropping skb.
[ 1307.083216] blackhole_netdev_xmit(): Dropping skb.
[ 1307.083255] blackhole_netdev_xmit(): Dropping skb.
[ 1307.083296] blackhole_netdev_xmit(): Dropping skb.
[ 1342.747304] blackhole_netdev_xmit(): Dropping skb.
[ 1342.747363] blackhole_netdev_xmit(): Dropping skb.
[ 1342.747396] blackhole_netdev_xmit(): Dropping skb.
[ 1342.747427] blackhole_netdev_xmit(): Dropping skb.
[ 1386.758420] blackhole_netdev_xmit(): Dropping skb.
[ 1386.758482] blackhole_netdev_xmit(): Dropping skb.
[ 1386.758530] blackhole_netdev_xmit(): Dropping skb.
[ 1386.758579] blackhole_netdev_xmit(): Dropping skb.
[ 1389.480777] blackhole_netdev_xmit(): Dropping skb.
[ 1389.480846] blackhole_netdev_xmit(): Dropping skb.
[ 1389.480890] blackhole_netdev_xmit(): Dropping skb.
[ 1389.480936] blackhole_netdev_xmit(): Dropping skb.
[ 1395.168867] blackhole_netdev_xmit(): Dropping skb.
[ 1395.168923] blackhole_netdev_xmit(): Dropping skb.
[ 1395.168957] blackhole_netdev_xmit(): Dropping skb.
[ 1395.168991] blackhole_netdev_xmit(): Dropping skb.