[    1.843344] ip (259) used greatest stack depth: 12168 bytes left
[   56.975764] netem: version 1.3
[   97.186513] ip (3558) used greatest stack depth: 12120 bytes left
[  581.050578] tc (16939) used greatest stack depth: 11888 bytes left
[  638.099204] pm_nl_ctl (20240) used greatest stack depth: 11784 bytes left