[    2.269996] ip (207) used greatest stack depth: 12552 bytes left
[    2.301428] ip (216) used greatest stack depth: 12488 bytes left
[    2.332743] ip (225) used greatest stack depth: 12480 bytes left
[    2.876480] ip (377) used greatest stack depth: 12008 bytes left
[  545.879170] pm_nl_ctl (27780) used greatest stack depth: 11912 bytes left