[    2.182192] ip (198) used greatest stack depth: 12688 bytes left
[    2.208010] ip (207) used greatest stack depth: 12608 bytes left
[    2.228483] ip (214) used greatest stack depth: 12528 bytes left
[    2.234523] ip (216) used greatest stack depth: 12088 bytes left
[  534.487578] pm_nl_ctl (25156) used greatest stack depth: 11936 bytes left