[   19.108686] ip (1870) used greatest stack depth: 12120 bytes left
[   67.141769] netem: version 1.3
[  570.741559] ip (21978) used greatest stack depth: 11928 bytes left
[  608.743850] tc (23601) used greatest stack depth: 11880 bytes left
[  672.906609] pm_nl_ctl (27731) used greatest stack depth: 11800 bytes left