[    2.144536] ip (183) used greatest stack depth: 12352 bytes left
[   30.915817] ip (2903) used greatest stack depth: 12344 bytes left
[   50.370090] netem: version 1.3
[   69.326399] ip (4622) used greatest stack depth: 12112 bytes left
[  550.848158] pm_nl_ctl (24822) used greatest stack depth: 11944 bytes left