[    1.556573] ip (253) used greatest stack depth: 12184 bytes left
[   37.637030] ip (2447) used greatest stack depth: 12136 bytes left
[   47.709835] netem: version 1.3
[  531.273385] tc (16939) used greatest stack depth: 11920 bytes left
[  586.421254] pm_nl_ctl (20242) used greatest stack depth: 11784 bytes left