[   33.507023][  T261] ip (261) used greatest stack depth: 24064 bytes left
[   36.234202][  T271] ip (271) used greatest stack depth: 23568 bytes left
[   41.269557][  T299] ip (299) used greatest stack depth: 22944 bytes left
[  398.331813][ T2246] netem: version 1.3