[    1.519559] ip (253) used greatest stack depth: 12296 bytes left
[    1.851896] ip (294) used greatest stack depth: 12248 bytes left
[   49.536155] netem: version 1.3
[  572.538698] tc (15678) used greatest stack depth: 11952 bytes left
[  630.809007] pm_nl_ctl (18822) used greatest stack depth: 11864 bytes left