[    2.107377] ip (184) used greatest stack depth: 12352 bytes left
[    2.172038] ip (207) used greatest stack depth: 12088 bytes left
[   50.310006] netem: version 1.3
[  488.060728] tc (21071) used greatest stack depth: 11992 bytes left
[  519.649897] pm_nl_ctl (24828) used greatest stack depth: 11936 bytes left