[   28.155436][  T260] ip (260) used greatest stack depth: 24640 bytes left
[   28.530021][  T263] ip (263) used greatest stack depth: 24288 bytes left
[   52.386447][  T456] ip (456) used greatest stack depth: 23568 bytes left
[  291.421940][ T2121] netem: version 1.3