[    1.933080] ip (242) used greatest stack depth: 12368 bytes left
[    2.572051] ip (276) used greatest stack depth: 12352 bytes left
[    2.622416] ip (280) used greatest stack depth: 12336 bytes left
[  662.777956] blackhole_netdev_xmit(): Dropping skb.
[  662.778019] blackhole_netdev_xmit(): Dropping skb.
[  662.778050] blackhole_netdev_xmit(): Dropping skb.
[  662.778082] blackhole_netdev_xmit(): Dropping skb.
[  991.919268] blackhole_netdev_xmit(): Dropping skb.
[  991.919342] blackhole_netdev_xmit(): Dropping skb.
[  991.919375] blackhole_netdev_xmit(): Dropping skb.
[  991.919407] blackhole_netdev_xmit(): Dropping skb.
[ 1046.405503] blackhole_netdev_xmit(): Dropping skb.
[ 1046.405570] blackhole_netdev_xmit(): Dropping skb.
[ 1046.405610] blackhole_netdev_xmit(): Dropping skb.
[ 1046.405665] blackhole_netdev_xmit(): Dropping skb.
[ 1127.698392] blackhole_netdev_xmit(): Dropping skb.
[ 1127.698456] blackhole_netdev_xmit(): Dropping skb.
[ 1127.698497] blackhole_netdev_xmit(): Dropping skb.
[ 1127.698536] blackhole_netdev_xmit(): Dropping skb.
[ 1203.402178] blackhole_netdev_xmit(): Dropping skb.
[ 1203.402229] blackhole_netdev_xmit(): Dropping skb.
[ 1203.402260] blackhole_netdev_xmit(): Dropping skb.
[ 1203.402288] blackhole_netdev_xmit(): Dropping skb.
[ 1212.139154] blackhole_netdev_xmit(): Dropping skb.
[ 1212.139205] blackhole_netdev_xmit(): Dropping skb.
[ 1212.139237] blackhole_netdev_xmit(): Dropping skb.
[ 1212.139265] blackhole_netdev_xmit(): Dropping skb.
[ 1221.303021] blackhole_netdev_xmit(): Dropping skb.
[ 1221.303075] blackhole_netdev_xmit(): Dropping skb.
[ 1221.303107] blackhole_netdev_xmit(): Dropping skb.
[ 1221.303140] blackhole_netdev_xmit(): Dropping skb.
[ 1237.597978] blackhole_netdev_xmit(): Dropping skb.
[ 1237.598054] blackhole_netdev_xmit(): Dropping skb.
[ 1237.598105] blackhole_netdev_xmit(): Dropping skb.
[ 1237.598143] blackhole_netdev_xmit(): Dropping skb.