[   30.446823][  T268] ip (268) used greatest stack depth: 24720 bytes left
[   30.955446][  T271] ip (271) used greatest stack depth: 23904 bytes left
[   33.451135][  T286] ip (286) used greatest stack depth: 23344 bytes left
[  419.115607][ T2533] netem: version 1.3