[    3.385680] ip (712) used greatest stack depth: 12008 bytes left
[   22.656861] ip (1867) used greatest stack depth: 11992 bytes left
[   51.572741] netem: version 1.3
[   56.964487] ip (4469) used greatest stack depth: 11936 bytes left
[  489.533260] tc (20919) used greatest stack depth: 11760 bytes left