[    1.557531] ip (254) used greatest stack depth: 12296 bytes left
[    1.896259] ip (294) used greatest stack depth: 12248 bytes left
[   49.932557] netem: version 1.3
[  554.981710] tc (15679) used greatest stack depth: 11912 bytes left
[  672.620004] pm_nl_ctl (18827) used greatest stack depth: 11752 bytes left