[    1.409191] ip (218) used greatest stack depth: 12216 bytes left
[    1.498561] ip (241) used greatest stack depth: 11960 bytes left
[   51.085473] netem: version 1.3
[   81.285995] ip (4829) used greatest stack depth: 11936 bytes left
[  549.565969] pm_nl_ctl (24835) used greatest stack depth: 11784 bytes left