Re: [lm-sensors] EXTERNAL: Re: coretemp driver

Re: [lm-sensors] EXTERNAL: Re: coretemp driver

[Minimi, Phillip A]

Thank you. I have visited these links. I'm trying to find out if there is an updated Coretemp driver and how to obtain it.

Thanks,
Phil
 

-----Original Message-----
From: Guenter Roeck [mailto:linux@roeck-us.net] 
Sent: Friday, August 07, 2015 12:31 PM
To: Minimi, Phillip A; lm-sensors@lm-sensors.org
Subject: EXTERNAL: Re: [lm-sensors] coretemp driver

On 08/07/2015 09:15 AM, Minimi, Phillip A wrote:
> Hello,
>
> Does lm sensors provide support or information about the coretemp driver? If now would you know how to obtain information?
>

See http://www.lm-sensors.org/wiki/Devices for supported devices, and http://www.lm-sensors.org/wiki/FAQ/Chapter4 on how to ask for help.

Thanks,
Guenter


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Re: [lm-sensors] EXTERNAL: Re: coretemp driver

[Guenter Roeck]

On 08/07/2015 09:40 AM, Minimi, Phillip A wrote:
> Thank you. I have visited these links. I'm trying to find out if there is an updated Coretemp driver and how to obtain it.
>

Please don't top-post.

Updated driver compared to what ?

The latest driver is in the upstream kernel, so it might be helpful
if you could describe your problem to be able to answer your question.

Thanks,
Guenter

> Thanks,
> Phil
>
>
> -----Original Message-----
> From: Guenter Roeck [mailto:linux@roeck-us.net]
> Sent: Friday, August 07, 2015 12:31 PM
> To: Minimi, Phillip A; lm-sensors@lm-sensors.org
> Subject: EXTERNAL: Re: [lm-sensors] coretemp driver
>
> On 08/07/2015 09:15 AM, Minimi, Phillip A wrote:
>> Hello,
>>
>> Does lm sensors provide support or information about the coretemp driver? If now would you know how to obtain information?
>>
>
> See http://www.lm-sensors.org/wiki/Devices for supported devices, and http://www.lm-sensors.org/wiki/FAQ/Chapter4 on how to ask for help.
>
> Thanks,
> Guenter
>
>


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Re: [lm-sensors] EXTERNAL: Re: coretemp driver

[Minimi, Phillip A]

Sorry, I can't seem to bottom post in Outlook. 

-----Original Message-----
From: Guenter Roeck [mailto:linux@roeck-us.net] 
Sent: Friday, August 07, 2015 1:19 PM
To: Minimi, Phillip A; lm-sensors@lm-sensors.org
Subject: Re: EXTERNAL: Re: [lm-sensors] coretemp driver

On 08/07/2015 09:40 AM, Minimi, Phillip A wrote:
> Thank you. I have visited these links. I'm trying to find out if there is an updated Coretemp driver and how to obtain it.
>

Please don't top-post.

Updated driver compared to what ?

The latest driver is in the upstream kernel, so it might be helpful if you could describe your problem to be able to answer your question.

Thanks,
Guenter

> Thanks,
> Phil
>
>
> -----Original Message-----
> From: Guenter Roeck [mailto:linux@roeck-us.net]
> Sent: Friday, August 07, 2015 12:31 PM
> To: Minimi, Phillip A; lm-sensors@lm-sensors.org
> Subject: EXTERNAL: Re: [lm-sensors] coretemp driver
>
> On 08/07/2015 09:15 AM, Minimi, Phillip A wrote:
>> Hello,
>>
>> Does lm sensors provide support or information about the coretemp driver? If now would you know how to obtain information?
>>
>
> See http://www.lm-sensors.org/wiki/Devices for supported devices, and http://www.lm-sensors.org/wiki/FAQ/Chapter4 on how to ask for help.
>
> Thanks,
> Guenter
>
>


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Re: [lm-sensors] EXTERNAL: Re: coretemp driver

[Minimi, Phillip A]

-----Original Message-----
From: Guenter Roeck [mailto:linux@roeck-us.net] 
Sent: Friday, August 07, 2015 1:19 PM
To: Minimi, Phillip A; lm-sensors@lm-sensors.org
Subject: Re: EXTERNAL: Re: [lm-sensors] coretemp driver

On 08/07/2015 09:40 AM, Minimi, Phillip A wrote:
> Thank you. I have visited these links. I'm trying to find out if there is an updated Coretemp driver and how to obtain it.
>

Please don't top-post.

Updated driver compared to what ?

The latest driver is in the upstream kernel, so it might be helpful if you could describe your problem to be able to answer your question.

Thanks,
Guenter

> Thanks,
> Phil
>
>
> -----Original Message-----
> From: Guenter Roeck [mailto:linux@roeck-us.net]
> Sent: Friday, August 07, 2015 12:31 PM
> To: Minimi, Phillip A; lm-sensors@lm-sensors.org
> Subject: EXTERNAL: Re: [lm-sensors] coretemp driver
>
> On 08/07/2015 09:15 AM, Minimi, Phillip A wrote:
>> Hello,
>>
>> Does lm sensors provide support or information about the coretemp driver? If now would you know how to obtain information?
>>
>
> See http://www.lm-sensors.org/wiki/Devices for supported devices, and http://www.lm-sensors.org/wiki/FAQ/Chapter4 on how to ask for help.
>
> Thanks,
> Guenter
>
>
>Please don't top-post.

>Updated driver compared to what ?

>The latest driver is in the upstream kernel, so it might be helpful if you could describe your problem to be able to answer your question.

>Thanks,
>Guenter

We are running RedHawk5.4.11, 2.6.31.13, 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. 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?

Thanks,
Phil
 

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Re: [lm-sensors] EXTERNAL: Re: coretemp driver

[Guenter Roeck]

>
> We are running RedHawk5.4.11, 2.6.31.13, 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.
 > 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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Re: [lm-sensors] EXTERNAL: Re: coretemp driver

[Phil Perry]

On 08/08/15 15:20, Guenter Roeck wrote:
> 
>>
>> We are running RedHawk5.4.11, 2.6.31.13, 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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Re: [lm-sensors] EXTERNAL: Re: coretemp driver

[Minimi, Phillip A]

-----Original Message-----
From: Guenter Roeck [mailto:linux@roeck-us.net] 
Sent: Saturday, August 08, 2015 10:21 AM
To: Minimi, Phillip A; lm-sensors@lm-sensors.org
Subject: Re: EXTERNAL: Re: [lm-sensors] coretemp driver


>
> We are running RedHawk5.4.11, 2.6.31.13, 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.
 > 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


Thank you.
Phil


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