Hi Pavel, thanks for your review,
On 08/17/2015 09:27 PM, Pavel Machek wrote:
On Mon 2015-08-17 12:11:15, Ingo Molnar wrote:
* Chen Yu <yu.c.c...@intel.com> wrote:
A bug is reported(https://bugzilla.redhat.com/show_bug.cgi?id=1227208)
Access denied :-(
Might need to register for accessing.
What HW is this on?
Intel Braswell and Broadwell, detail for Broadwell:
Platform: MayanCity
Processor: 2x BROADWELL BDX_EP A0 QHPR
Chipset: Wellsburg B1 QR7E
- So BIOS expects to control MSR_IA32_THERM_CONTROL . Now you suspend
in hot enironment but resume in cool one. BIOS sets up
MSR_IA32_THERM_CONTROL the right way, but you override it.
As BIOS expects to control MSR_IA32_THERM_CONTROL and machine is
kept cool, BIOS will not write new value to it, and machine will
keep running slowly.
Sorry, I can not quite catch up, do you mean we should let
BIOS modifying MSR_IA32_THERM_CONTROL and leverage linux
to adjust this value at runtime(after S3)?
Doing this unconditionally is asking for trouble. Blacklist entry with
affected BIOS info might be acceptable, but...
Pavel
you mean a quirk here(accroding to dmi info ,etc)?
Best Regards,
Yu
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