[    2.311953] ip (214) used greatest stack depth: 12520 bytes left
[    2.322306] ip (217) used greatest stack depth: 12488 bytes left
[    3.982935] ip (674) used greatest stack depth: 12264 bytes left
[    4.039342] ip (692) used greatest stack depth: 12008 bytes left
[  544.747326] pm_nl_ctl (26379) used greatest stack depth: 11912 bytes left