[    1.660319] ip (253) used greatest stack depth: 12304 bytes left
[    1.909990] ip (275) used greatest stack depth: 12104 bytes left
[   48.639522] netem: version 1.3
[  568.516319] tc (15679) used greatest stack depth: 11912 bytes left
[  624.986636] pm_nl_ctl (18823) used greatest stack depth: 11864 bytes left