[    1.947884] ip (257) used greatest stack depth: 12392 bytes left
[    2.254801] ip (279) used greatest stack depth: 12344 bytes left
[   31.174727] ip (1531) used greatest stack depth: 12032 bytes left
[   55.213747] netem: version 1.3
[  695.003636] pm_nl_ctl (18730) used greatest stack depth: 11872 bytes left