* Does ACPI thermal driver support temperature under zero?
@ 2015-02-06 3:02 Hanjun Guo
0 siblings, 0 replies; only message in thread
From: Hanjun Guo @ 2015-02-06 3:02 UTC (permalink / raw)
To: Zhang Rui; +Cc: linux-pm, sangyan
Hi,
My colleague was testing the system booting in temprature at -20 ℃,
then the system print "thermal_sys: Critical temperature reached (244 C),
shutting down", and the system shutdown as not expected.
The system is using avoton CPU and the kernel version is 3.4 stable, I
just find that in the latest of version of kernel, all the temperature variable
in thermal structure is unsigned, it seems that in thermal_get_temp()
in drivers/acpi/thermal.c, *temp will be a large value if temperature
under zero, did I miss something?
Any help or guidance will be appreciated a lot.
Thanks
Hanjun
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2015-02-06 3:02 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-02-06 3:02 Does ACPI thermal driver support temperature under zero? Hanjun Guo
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.