[    1.623493] ip (254) used greatest stack depth: 12296 bytes left
[    2.051778] ip (295) used greatest stack depth: 12248 bytes left
[   51.317865] netem: version 1.3
[  575.789933] tc (15678) used greatest stack depth: 11912 bytes left
[  632.767635] pm_nl_ctl (18822) used greatest stack depth: 11872 bytes left