[    1.687606] iptables (232) used greatest stack depth: 12944 bytes left
[    1.818471] ip (249) used greatest stack depth: 12912 bytes left
[    1.978447] ip (261) used greatest stack depth: 12592 bytes left
[    2.060516] ip (270) used greatest stack depth: 12320 bytes left
[   22.425872] ip (1138) used greatest stack depth: 12272 bytes left
[   48.878557] netem: version 1.3