[    1.705540] ip (259) used greatest stack depth: 12168 bytes left
[    2.707102] ip (385) used greatest stack depth: 12120 bytes left
[   48.574217] netem: version 1.3
[  573.838254] tc (16939) used greatest stack depth: 11896 bytes left
[  630.970831] pm_nl_ctl (20241) used greatest stack depth: 11864 bytes left