[    1.654420] ip (253) used greatest stack depth: 12168 bytes left
[   66.991230] netem: version 1.3
[  519.496603] ip (19367) used greatest stack depth: 12120 bytes left
[  594.694999] tc (23602) used greatest stack depth: 11880 bytes left
[  657.972385] pm_nl_ctl (27731) used greatest stack depth: 11848 bytes left