[   67.691983] ip (4291) used greatest stack depth: 11992 bytes left
[   67.798663] netem: version 1.3
[  129.709719] ip (5206) used greatest stack depth: 11928 bytes left
[  633.498083] tc (23603) used greatest stack depth: 11880 bytes left
[  697.935484] pm_nl_ctl (27731) used greatest stack depth: 11800 bytes left