[    2.314409] ip (226) used greatest stack depth: 12272 bytes left
[    5.973823] ip (1228) used greatest stack depth: 12256 bytes left
[   31.965375] ip (2955) used greatest stack depth: 12032 bytes left
[  554.185259] pm_nl_ctl (27808) used greatest stack depth: 11912 bytes left