[    1.694322] ip (254) used greatest stack depth: 12168 bytes left
[   37.547540] ip (1814) used greatest stack depth: 12120 bytes left
[   54.010024] netem: version 1.3
[  554.542430] tc (16929) used greatest stack depth: 11896 bytes left
[  611.566183] pm_nl_ctl (20230) used greatest stack depth: 11768 bytes left