[    1.839960] ip (254) used greatest stack depth: 12296 bytes left
[    2.243388] ip (295) used greatest stack depth: 12248 bytes left
[   56.875149] netem: version 1.3
[  117.365113] ip (3640) used greatest stack depth: 12104 bytes left
[  619.290821] tc (21288) used greatest stack depth: 11952 bytes left
[  678.172619] pm_nl_ctl (24429) used greatest stack depth: 11752 bytes left