[    2.151353] ip (186) used greatest stack depth: 12368 bytes left
[   55.760966] ip (4509) used greatest stack depth: 12352 bytes left
[   55.833383] ip (4536) used greatest stack depth: 12128 bytes left
[  530.469560] pm_nl_ctl (25820) used greatest stack depth: 11920 bytes left