[    1.994384] ip (244) used greatest stack depth: 12384 bytes left
[    2.674836] ip (278) used greatest stack depth: 12368 bytes left
[    6.462124] ip (446) used greatest stack depth: 12352 bytes left
[  632.926632] ip (22577) used greatest stack depth: 12200 bytes left
[  700.646626] blackhole_netdev_xmit(): Dropping skb.
[  700.646689] blackhole_netdev_xmit(): Dropping skb.
[  700.646723] blackhole_netdev_xmit(): Dropping skb.
[  700.646753] blackhole_netdev_xmit(): Dropping skb.
[  727.814144] blackhole_netdev_xmit(): Dropping skb.
[  727.814193] blackhole_netdev_xmit(): Dropping skb.
[  727.814226] blackhole_netdev_xmit(): Dropping skb.
[  727.814262] blackhole_netdev_xmit(): Dropping skb.
[  761.598539] blackhole_netdev_xmit(): Dropping skb.
[  761.598608] blackhole_netdev_xmit(): Dropping skb.
[  761.598652] blackhole_netdev_xmit(): Dropping skb.
[  761.598690] blackhole_netdev_xmit(): Dropping skb.
[  817.676551] blackhole_netdev_xmit(): Dropping skb.
[  817.676612] blackhole_netdev_xmit(): Dropping skb.
[  817.676650] blackhole_netdev_xmit(): Dropping skb.
[  817.676685] blackhole_netdev_xmit(): Dropping skb.
[  977.624508] blackhole_netdev_xmit(): Dropping skb.
[  977.624566] blackhole_netdev_xmit(): Dropping skb.
[  977.624603] blackhole_netdev_xmit(): Dropping skb.
[  977.624636] blackhole_netdev_xmit(): Dropping skb.
[  995.603026] blackhole_netdev_xmit(): Dropping skb.
[  995.603109] blackhole_netdev_xmit(): Dropping skb.
[  995.603160] blackhole_netdev_xmit(): Dropping skb.
[  995.603221] blackhole_netdev_xmit(): Dropping skb.
[ 1061.844732] blackhole_netdev_xmit(): Dropping skb.
[ 1061.844803] blackhole_netdev_xmit(): Dropping skb.
[ 1061.844839] blackhole_netdev_xmit(): Dropping skb.
[ 1061.844875] blackhole_netdev_xmit(): Dropping skb.
[ 1080.605708] blackhole_netdev_xmit(): Dropping skb.
[ 1080.605779] blackhole_netdev_xmit(): Dropping skb.
[ 1080.605830] blackhole_netdev_xmit(): Dropping skb.
[ 1080.605893] blackhole_netdev_xmit(): Dropping skb.
[ 1163.610237] blackhole_netdev_xmit(): Dropping skb.
[ 1163.610296] blackhole_netdev_xmit(): Dropping skb.
[ 1163.610329] blackhole_netdev_xmit(): Dropping skb.
[ 1163.610371] blackhole_netdev_xmit(): Dropping skb.
[ 1166.181361] blackhole_netdev_xmit(): Dropping skb.
[ 1166.181421] blackhole_netdev_xmit(): Dropping skb.
[ 1166.181458] blackhole_netdev_xmit(): Dropping skb.
[ 1166.181496] blackhole_netdev_xmit(): Dropping skb.
[ 1167.742821] blackhole_netdev_xmit(): Dropping skb.
[ 1167.742895] blackhole_netdev_xmit(): Dropping skb.
[ 1222.645131] net_ratelimit: 6 callbacks suppressed
[ 1222.645140] blackhole_netdev_xmit(): Dropping skb.
[ 1222.645249] blackhole_netdev_xmit(): Dropping skb.
[ 1222.645299] blackhole_netdev_xmit(): Dropping skb.
[ 1222.645352] blackhole_netdev_xmit(): Dropping skb.