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SubjectRe: intel_soc_dts_thermal binding issues
From
On Thu, Mar 5, 2015 at 8:37 PM, Zhang, Rui <rui.zhang@intel.com> wrote:
> Please attach the acpidump output.

Attached for my machine.

josh

>
> Thanks,
> rui
>
> -----Original Message-----
> From: linux-pm-owner@vger.kernel.org [mailto:linux-pm-owner@vger.kernel.org] On Behalf Of Josh Boyer
> Sent: Thursday, March 5, 2015 10:30 PM
> To: Zhang, Rui
> Cc: Eduardo Valentin; Linux PM list; Linux-Kernel@Vger. Kernel. Org
> Subject: Re: intel_soc_dts_thermal binding issues
> Importance: High
>
> On Wed, Mar 4, 2015 at 8:55 PM, Zhang, Rui <rui.zhang@intel.com> wrote:
>> What kernel are you using?
>> I think it should be fixed by commit 014d9d5d0cc1da79bbe48fbc5e1068c5616238d2, which is merged in 3.19-rc5.
>
> The reporter with the ASUS machine was running 3.18.7. However, on my NUC machine I still see this with 4.0-rc2 and the latest Linus tree:
>
> [jwboyer@nuc-celeron ~]$ uname -a
> Linux nuc-celeron 4.0.0-0.rc2.git1.1.fc23.x86_64 #1 SMP Thu Mar 5
> 08:37:23 EST 2015 x86_64 x86_64 x86_64 GNU/Linux [jwboyer@nuc-celeron ~]$ dmesg | grep request_threaded
> [ 11.187239] intel_soc_dts_thermal: request_threaded_irq ret -22
> [ 11.261738] intel_soc_dts_thermal: request_threaded_irq ret -22
> [jwboyer@nuc-celeron ~]$ cat /proc/cpuinfo | grep "model name"
> model name : Intel(R) Celeron(R) CPU N2820 @ 2.13GHz
> model name : Intel(R) Celeron(R) CPU N2820 @ 2.13GHz
> [jwboyer@nuc-celeron ~]$
>
> The 4.0.0-rc2.git1.1 above corresponds to Linux v4.0-rc2-150-g6587457b4b3d in mainline. We aren't carrying any patches that would impact this.
>
> The commit you pointed to seems to imply that either INT340X_THERMAL or INTEL_SOC_DTS_THERMAL could be set, but not both. In Fedora, we have them both enabled as modules:
>
> [jwboyer@nuc-celeron ~]$ grep _THERMAL=m
> /boot/config-4.0.0-0.rc2.git1.1.fc23.x86_64
> CONFIG_X86_PKG_TEMP_THERMAL=m
> CONFIG_INTEL_SOC_DTS_THERMAL=m
> CONFIG_INT340X_THERMAL=m
> [jwboyer@nuc-celeron ~]$
>
> Maybe the commit should be checking for INTEL_SOC_DTS_THERMAL unconditionally, and not as an #elfi?
>
> josh
>
>>
>> Thanks,
>> rui
>>
>> -----Original Message-----
>> From: jwboyer@gmail.com [mailto:jwboyer@gmail.com] On Behalf Of Josh
>> Boyer
>> Sent: Wednesday, March 4, 2015 10:05 PM
>> To: Zhang, Rui; Eduardo Valentin
>> Cc: Linux PM list; Linux-Kernel@Vger. Kernel. Org
>> Subject: intel_soc_dts_thermal binding issues
>> Importance: High
>>
>> Hi All,
>>
>> We've seen a number of reports where people see:
>>
>> [ 20.499427] intel_soc_dts_thermal: request_threaded_irq ret -22
>> [ 20.519160] intel_soc_dts_thermal: request_threaded_irq ret -22
>> [ 20.532660] intel_soc_dts_thermal: request_threaded_irq ret -22
>>
>> in their boot logs. They view this as a kernel bug and report is as such. The above log came from an ASUS x200ma machine, which has a quad core Baytrail-M Pentium CPU (N3530).
>>
>> I can't tell if the issue is because the driver is trying to bind to all 4 cores and only CPU0 works, or what other issue would cause this.
>> I personally have a Celeron based NUC with a N2820 that gets the error above for both cores and the driver doesn't load at all.
>>
>> Is there something else the driver should be doing to bind to the various CPUs? If there's nothing else it can key off of, can we drop the pr_err so it stops showing up in dmesg?
>>
>> josh
> --
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