[    1.658013] ip (247) used greatest stack depth: 12304 bytes left
[  628.430592] ip (14593) used greatest stack depth: 12160 bytes left
[  690.645105] blackhole_netdev_xmit(): Dropping skb.
[  690.645165] blackhole_netdev_xmit(): Dropping skb.
[  690.645204] blackhole_netdev_xmit(): Dropping skb.
[  690.645245] blackhole_netdev_xmit(): Dropping skb.
[  707.400818] blackhole_netdev_xmit(): Dropping skb.
[  707.400889] blackhole_netdev_xmit(): Dropping skb.
[  707.400941] blackhole_netdev_xmit(): Dropping skb.
[  707.400998] blackhole_netdev_xmit(): Dropping skb.
[  753.467846] blackhole_netdev_xmit(): Dropping skb.
[  753.467900] blackhole_netdev_xmit(): Dropping skb.
[  753.467938] blackhole_netdev_xmit(): Dropping skb.
[  753.467970] blackhole_netdev_xmit(): Dropping skb.
[  897.218470] blackhole_netdev_xmit(): Dropping skb.
[  897.218551] blackhole_netdev_xmit(): Dropping skb.
[  897.218593] blackhole_netdev_xmit(): Dropping skb.
[  897.218631] blackhole_netdev_xmit(): Dropping skb.
[  927.474740] blackhole_netdev_xmit(): Dropping skb.
[  927.474812] blackhole_netdev_xmit(): Dropping skb.
[  927.474844] blackhole_netdev_xmit(): Dropping skb.
[  927.474876] blackhole_netdev_xmit(): Dropping skb.
[ 1056.449575] blackhole_netdev_xmit(): Dropping skb.
[ 1056.449645] blackhole_netdev_xmit(): Dropping skb.
[ 1056.449688] blackhole_netdev_xmit(): Dropping skb.
[ 1056.449739] blackhole_netdev_xmit(): Dropping skb.
[ 1076.302526] blackhole_netdev_xmit(): Dropping skb.
[ 1076.302597] blackhole_netdev_xmit(): Dropping skb.
[ 1076.302655] blackhole_netdev_xmit(): Dropping skb.
[ 1076.302704] blackhole_netdev_xmit(): Dropping skb.
[ 1139.358193] blackhole_netdev_xmit(): Dropping skb.
[ 1139.358275] blackhole_netdev_xmit(): Dropping skb.
[ 1139.358323] blackhole_netdev_xmit(): Dropping skb.
[ 1139.358400] blackhole_netdev_xmit(): Dropping skb.