[    2.221537] ip (186) used greatest stack depth: 12264 bytes left
[   31.266058] ip (2810) used greatest stack depth: 12048 bytes left
[   63.301904] ip (4816) used greatest stack depth: 11992 bytes left
[  532.543807] pm_nl_ctl (26350) used greatest stack depth: 11912 bytes left