[    2.229200] ip (199) used greatest stack depth: 12560 bytes left
[    2.262621] ip (208) used greatest stack depth: 12544 bytes left
[    2.295817] ip (217) used greatest stack depth: 12016 bytes left
[   68.053312] ip (4702) used greatest stack depth: 12000 bytes left
[  545.631911] pm_nl_ctl (25814) used greatest stack depth: 11912 bytes left