[    2.429408] ip (279) used greatest stack depth: 12344 bytes left
[   63.899980] netem: version 1.3
[  429.949994] ip (8536) used greatest stack depth: 12064 bytes left
[  642.004956] tc (15588) used greatest stack depth: 11936 bytes left
[  707.854651] pm_nl_ctl (18726) used greatest stack depth: 11872 bytes left