[    1.959446] ip (250) used greatest stack depth: 12400 bytes left
[    2.295897] ip (273) used greatest stack depth: 12352 bytes left
[   12.104183] ip (964) used greatest stack depth: 12200 bytes left
[   54.332823] netem: version 1.3
[  556.801310] ip (11937) used greatest stack depth: 12072 bytes left
[  580.851525] tc (12613) used greatest stack depth: 11936 bytes left