[    1.573193] ip (254) used greatest stack depth: 12248 bytes left
[   40.977230] ip (2403) used greatest stack depth: 12200 bytes left
[   50.637133] netem: version 1.3
[  551.555178] tc (15682) used greatest stack depth: 11952 bytes left
[  608.983912] pm_nl_ctl (18826) used greatest stack depth: 11872 bytes left