[    1.463152] ip (229) used greatest stack depth: 11960 bytes left
[   16.854806] ip (1719) used greatest stack depth: 11952 bytes left
[   51.097756] netem: version 1.3
[   97.159216] ip (5024) used greatest stack depth: 11936 bytes left
[  551.758225] pm_nl_ctl (24829) used greatest stack depth: 11784 bytes left