[    1.887501] ip (257) used greatest stack depth: 12296 bytes left
[    3.490666] ip (417) used greatest stack depth: 12248 bytes left
[   51.170018] netem: version 1.3
[  515.101816] ip (14010) used greatest stack depth: 12232 bytes left
[  571.591543] tc (15679) used greatest stack depth: 11952 bytes left
[  629.459294] pm_nl_ctl (18823) used greatest stack depth: 11864 bytes left