[   29.954105][  T238] tc (238) used greatest stack depth: 24592 bytes left
[   33.198006][  T259] ip (259) used greatest stack depth: 24064 bytes left
[   90.032555][  T596] ip (596) used greatest stack depth: 23760 bytes left
[  436.443482][ T2533] netem: version 1.3