[    1.678662] ip (252) used greatest stack depth: 12296 bytes left
[    2.077388] ip (294) used greatest stack depth: 12248 bytes left
[   50.120049] netem: version 1.3
[  116.183543] ip (3614) used greatest stack depth: 12232 bytes left
[  571.991355] tc (15680) used greatest stack depth: 11952 bytes left
[  630.350116] pm_nl_ctl (18824) used greatest stack depth: 11752 bytes left