[    1.493382] ip (254) used greatest stack depth: 12296 bytes left
[    1.678160] ip (276) used greatest stack depth: 12104 bytes left
[   47.754478] netem: version 1.3
[  579.838772] tc (15677) used greatest stack depth: 11952 bytes left
[  639.752658] pm_nl_ctl (18822) used greatest stack depth: 11872 bytes left