[    1.630960] ip (252) used greatest stack depth: 12168 bytes left
[   62.918313] netem: version 1.3
[  551.303382] ip (21572) used greatest stack depth: 12120 bytes left
[  603.815399] tc (23659) used greatest stack depth: 11880 bytes left
[  665.753537] pm_nl_ctl (27793) used greatest stack depth: 11864 bytes left