[    1.857769] ip (254) used greatest stack depth: 12224 bytes left
[   22.627914] ip (1529) used greatest stack depth: 11928 bytes left
[   49.617276] netem: version 1.3
[  561.658176] tc (16942) used greatest stack depth: 11920 bytes left
[  619.509628] pm_nl_ctl (20241) used greatest stack depth: 11872 bytes left