[    2.610174] ip (277) used greatest stack depth: 12320 bytes left
[  941.537087] blackhole_netdev_xmit(): Dropping skb.
[  941.537185] blackhole_netdev_xmit(): Dropping skb.
[  941.537238] blackhole_netdev_xmit(): Dropping skb.
[  941.537283] blackhole_netdev_xmit(): Dropping skb.
[  986.230528] blackhole_netdev_xmit(): Dropping skb.
[  986.230574] blackhole_netdev_xmit(): Dropping skb.
[  986.230605] blackhole_netdev_xmit(): Dropping skb.
[  986.230634] blackhole_netdev_xmit(): Dropping skb.
[  989.540933] blackhole_netdev_xmit(): Dropping skb.
[  989.540990] blackhole_netdev_xmit(): Dropping skb.
[  989.541024] blackhole_netdev_xmit(): Dropping skb.
[  989.541053] blackhole_netdev_xmit(): Dropping skb.
[ 1070.328495] blackhole_netdev_xmit(): Dropping skb.
[ 1070.328558] blackhole_netdev_xmit(): Dropping skb.
[ 1070.328592] blackhole_netdev_xmit(): Dropping skb.
[ 1070.328626] blackhole_netdev_xmit(): Dropping skb.
[ 1139.068736] blackhole_netdev_xmit(): Dropping skb.
[ 1139.068790] blackhole_netdev_xmit(): Dropping skb.
[ 1139.068822] blackhole_netdev_xmit(): Dropping skb.
[ 1139.068854] blackhole_netdev_xmit(): Dropping skb.
[ 1202.918367] blackhole_netdev_xmit(): Dropping skb.
[ 1202.918429] blackhole_netdev_xmit(): Dropping skb.
[ 1202.918468] blackhole_netdev_xmit(): Dropping skb.
[ 1202.918517] blackhole_netdev_xmit(): Dropping skb.