[    2.540948] ip (278) used greatest stack depth: 12352 bytes left
[   22.074027] ip (2189) used greatest stack depth: 12336 bytes left
[  772.482366] blackhole_netdev_xmit(): Dropping skb.
[  772.482424] blackhole_netdev_xmit(): Dropping skb.
[  772.482456] blackhole_netdev_xmit(): Dropping skb.
[  772.482487] blackhole_netdev_xmit(): Dropping skb.
[  842.409194] blackhole_netdev_xmit(): Dropping skb.
[  842.409245] blackhole_netdev_xmit(): Dropping skb.
[  842.409275] blackhole_netdev_xmit(): Dropping skb.
[  842.409306] blackhole_netdev_xmit(): Dropping skb.
[  907.440102] blackhole_netdev_xmit(): Dropping skb.
[  907.440151] blackhole_netdev_xmit(): Dropping skb.
[  907.440183] blackhole_netdev_xmit(): Dropping skb.
[  907.440210] blackhole_netdev_xmit(): Dropping skb.
[  941.119768] blackhole_netdev_xmit(): Dropping skb.
[  941.119819] blackhole_netdev_xmit(): Dropping skb.
[  941.119850] blackhole_netdev_xmit(): Dropping skb.
[  941.119882] blackhole_netdev_xmit(): Dropping skb.
[ 1113.308017] blackhole_netdev_xmit(): Dropping skb.
[ 1113.308090] blackhole_netdev_xmit(): Dropping skb.
[ 1113.308123] blackhole_netdev_xmit(): Dropping skb.
[ 1113.308156] blackhole_netdev_xmit(): Dropping skb.
[ 1123.319972] blackhole_netdev_xmit(): Dropping skb.
[ 1123.320039] blackhole_netdev_xmit(): Dropping skb.
[ 1123.320090] blackhole_netdev_xmit(): Dropping skb.
[ 1123.320142] blackhole_netdev_xmit(): Dropping skb.