[    2.311780] ip (289) used greatest stack depth: 12344 bytes left
[   55.423242] netem: version 1.3
[  128.039494] ip (3632) used greatest stack depth: 12288 bytes left
[  613.848501] tc (15594) used greatest stack depth: 11936 bytes left
[  683.961040] pm_nl_ctl (18732) used greatest stack depth: 11848 bytes left