[    1.607868] ip (254) used greatest stack depth: 12184 bytes left
[   21.237183] ip (1539) used greatest stack depth: 11944 bytes left
[   46.862746] netem: version 1.3
[  538.596095] tc (16946) used greatest stack depth: 11920 bytes left
[  593.507625] pm_nl_ctl (20246) used greatest stack depth: 11856 bytes left