[   47.512365] ip (2670) used greatest stack depth: 12232 bytes left
[   54.696630] netem: version 1.3
[   89.398053] ip (3312) used greatest stack depth: 12136 bytes left
[  576.762274] tc (15680) used greatest stack depth: 11952 bytes left
[  638.458495] pm_nl_ctl (18825) used greatest stack depth: 11856 bytes left