[    1.475435] ip (254) used greatest stack depth: 12168 bytes left
[   49.579520] netem: version 1.3
[  155.259515] ip (4510) used greatest stack depth: 12120 bytes left
[  540.906724] tc (16940) used greatest stack depth: 11888 bytes left
[  597.304120] pm_nl_ctl (20242) used greatest stack depth: 11848 bytes left