[    2.485455] ip (288) used greatest stack depth: 12272 bytes left
[   26.659952] ip (1420) used greatest stack depth: 12016 bytes left
[   59.702856] netem: version 1.3
[  611.602269] tc (15595) used greatest stack depth: 11936 bytes left
[  679.524353] pm_nl_ctl (18732) used greatest stack depth: 11872 bytes left