[   37.630177][  T267] ip (267) used greatest stack depth: 24288 bytes left
[   40.027467][  T280] ip (280) used greatest stack depth: 24224 bytes left
[   71.862084][  T470] ip (470) used greatest stack depth: 23168 bytes left
[  373.959575][ T2131] netem: version 1.3