[    2.142294] ip (278) used greatest stack depth: 12248 bytes left
[   54.072749] netem: version 1.3
[  637.304915] ip (20883) used greatest stack depth: 12232 bytes left
[  639.448810] tc (21098) used greatest stack depth: 11952 bytes left
[  696.316746] pm_nl_ctl (24239) used greatest stack depth: 11872 bytes left