[    1.709139] iptables (234) used greatest stack depth: 12864 bytes left
[    1.922697] ip (256) used greatest stack depth: 12368 bytes left
[    2.119526] ip (272) used greatest stack depth: 12320 bytes left
[   51.882681] netem: version 1.3
[  420.095013] ip (7477) used greatest stack depth: 12128 bytes left
[  491.707537] ip (9647) used greatest stack depth: 12048 bytes left