[    1.699219] ip (254) used greatest stack depth: 12168 bytes left
[   50.032756] ip (3076) used greatest stack depth: 12040 bytes left
[   50.179655] netem: version 1.3
[  574.345296] tc (16938) used greatest stack depth: 11896 bytes left
[  631.346798] pm_nl_ctl (20238) used greatest stack depth: 11784 bytes left