[    2.489411] ip (289) used greatest stack depth: 12272 bytes left
[   56.367215] netem: version 1.3
[  145.877719] ip (4072) used greatest stack depth: 12016 bytes left
[  599.608976] tc (15594) used greatest stack depth: 11936 bytes left
[  666.472334] pm_nl_ctl (18730) used greatest stack depth: 11872 bytes left