[    1.636958] ip (254) used greatest stack depth: 12296 bytes left
[    3.295598] ip (418) used greatest stack depth: 12264 bytes left
[   52.703614] netem: version 1.3
[  574.689349] tc (15679) used greatest stack depth: 11952 bytes left
[  632.327940] pm_nl_ctl (18824) used greatest stack depth: 11864 bytes left