[    1.595581] ip (254) used greatest stack depth: 12168 bytes left
[    8.215472] ip (1073) used greatest stack depth: 12120 bytes left
[   53.664046] netem: version 1.3
[  571.793312] tc (16944) used greatest stack depth: 11896 bytes left
[  628.146904] pm_nl_ctl (20246) used greatest stack depth: 11864 bytes left