[    2.489662] ip (218) used greatest stack depth: 12216 bytes left
[    4.398975] ip (740) used greatest stack depth: 11960 bytes left
[   51.953528] netem: version 1.3
[   89.118362] ip (4857) used greatest stack depth: 11936 bytes left
[  566.542040] pm_nl_ctl (24831) used greatest stack depth: 11864 bytes left