[    1.640119] ip (260) used greatest stack depth: 12168 bytes left
[   49.872048] netem: version 1.3
[  490.115662] ip (15273) used greatest stack depth: 12120 bytes left
[  544.252110] tc (16941) used greatest stack depth: 11896 bytes left
[  601.814410] pm_nl_ctl (20240) used greatest stack depth: 11784 bytes left