Re: EXTERNAL: Re: coretemp driver

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On 08/08/15 15:20, Guenter Roeck wrote:
>> We are running RedHawk5.4.11,, based on RHEL5.4 x86, on an
>> IBM HS23.
>> Executing sensors showed no output at all, no sensors detected.
>> I looked at coretemp.c and saw that the HS23 CPU, 32nm, CPUID= 0X2D,
>> was not supported and in fact coretemp was reporting that in
> /var/log/messages.
>> I added 0x2D to coretemp.c and rebuilt the kernel to see if we could
> even read
>> a sensor. That worked and now there is a temperature reported for each
>> CPU.

Additionally, you don't need to patch and recompile the whole kernel for
just one driver - you can build your patched coretemp driver out of tree.

>> However, with the "workaround" I don't have any confidence in the
> accuracy
>> of the output of course. Is there a patch I can apply to the kernel
> source
>> that will update coretemp.c and related source code?
> The upstream driver has been rewritten pretty much completely since then.
> I had a quick look, but back-porting the latest version to 2.6.31
> would be a major effort.
> I think the best you can do is to stick with what you did.
> Guenter

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