[    1.663662] iptables (231) used greatest stack depth: 12944 bytes left
[    1.804842] ip (248) used greatest stack depth: 12912 bytes left
[    1.877033] ip (253) used greatest stack depth: 12368 bytes left
[    2.063417] ip (269) used greatest stack depth: 12320 bytes left
[    8.210619] ip (826) used greatest stack depth: 12160 bytes left
[   48.302712] netem: version 1.3
[  554.428070] tc (11923) used greatest stack depth: 11872 bytes left