[    2.958390] ip (367) used greatest stack depth: 12168 bytes left
[    6.141075] ip (1235) used greatest stack depth: 12008 bytes left
[   91.870920] ip (5418) used greatest stack depth: 11992 bytes left
[  576.876405] pm_nl_ctl (27771) used greatest stack depth: 11912 bytes left