[   33.908138][  T271] ip (271) used greatest stack depth: 24456 bytes left
[   68.220343][  T488] ip (488) used greatest stack depth: 24032 bytes left
[  145.262178][  T984] ip (984) used greatest stack depth: 23632 bytes left
[  370.208186][ T2252] netem: version 1.3