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Bug#1081056: linux: thermal thermal_zone8: failed to read out thermal zone (-61)

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  Bug#1081056: linux: thermal thermal_zone8: failed to read out thermal zone (-61) Salvatore Bonaccorso <carnil@debian.org> - 2025-02-21 09:00 +0100
    Bug#1081056: linux: thermal thermal_zone8: failed to read out thermal zone (-61) matte.mb2006.9990@gmail.com - 2025-02-24 19:00 +0100
      Bug#1081056: linux: thermal thermal_zone8: failed to read out thermal zone (-61) Salvatore Bonaccorso <carnil@debian.org> - 2025-03-22 14:40 +0100
        Bug#1081056: linux: thermal thermal_zone8: failed to read out thermal zone (-61) Salvatore Bonaccorso <carnil@debian.org> - 2025-03-22 14:50 +0100

#86009 — Bug#1081056: linux: thermal thermal_zone8: failed to read out thermal zone (-61)

Control: tags -1 + moreinfo

Hi,

On Sat, Sep 07, 2024 at 07:04:36PM +0200, matte.mb2006.9990@gmail.com wrote:
> Source: src:linux
> Version: 6.1.0-25-amd64
> Severity: minor
> 
> Dear Maintainer,
> 
> In the kernel logs I found the following log: "thermal thermal_zone8:
> failed to read out thermal zone (-61)", the only problem I find is that
> power-profiles-daemon doesn't set the performance mode because it says
> that the temperature is too high even if it is not true (bug I already
> reported).

Can you verify this against the most current kernel in the 6.1.y
stable series? (6.1.128-1). Does the problem shows up as well with a
current kernel from the upper suites ideally 6.12.15-1 to test or
(6.13.3-1~exp1 from experimental)? Is the problem exposed there as
well?

In the case of yes, can you provide the kernel log showing the problem
and could you report it upstream to the linux-pm developers?

Regards,
Salvatore

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#86123

On Fri, 21 Feb 2025 08:55:08 +0100 Salvatore Bonaccorso
<carnil@debian.org> wrote:
> Control: tags -1 + moreinfo
> 
> Hi,
> 
> On Sat, Sep 07, 2024 at 07:04:36PM +0200,
matte.mb2006.9990@gmail.com wrote:
> > Source: src:linux
> > Version: 6.1.0-25-amd64
> > Severity: minor
> > 
> > Dear Maintainer,
> > 
> > In the kernel logs I found the following log: "thermal
thermal_zone8:
> > failed to read out thermal zone (-61)", the only problem I find is
that
> > power-profiles-daemon doesn't set the performance mode because it
says
> > that the temperature is too high even if it is not true (bug I
already
> > reported).
> 
> Can you verify this against the most current kernel in the 6.1.y
> stable series? (6.1.128-1). Does the problem shows up as well with a
> current kernel from the upper suites ideally 6.12.15-1 to test or
> (6.13.3-1~exp1 from experimental)? Is the problem exposed there as
> well?
> 
> In the case of yes, can you provide the kernel log showing the
problem
> and could you report it upstream to the linux-pm developers?
> 
> Regards,
> Salvatore
> 
> 

Hi,
the problem goes away with kernel 6.13.4-1~exp1 and the latest
firmware-iwlwifi (sid).
The power-profiles-daemon problem remains though.

Regards,
Matteo

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#86548

Hi,

On Mon, Feb 24, 2025 at 06:50:59PM +0100, matte.mb2006.9990@gmail.com wrote:
> On Fri, 21 Feb 2025 08:55:08 +0100 Salvatore Bonaccorso
> <carnil@debian.org> wrote:
> > Control: tags -1 + moreinfo
> > 
> > Hi,
> > 
> > On Sat, Sep 07, 2024 at 07:04:36PM +0200,
> matte.mb2006.9990@gmail.com wrote:
> > > Source: src:linux
> > > Version: 6.1.0-25-amd64
> > > Severity: minor
> > > 
> > > Dear Maintainer,
> > > 
> > > In the kernel logs I found the following log: "thermal
> thermal_zone8:
> > > failed to read out thermal zone (-61)", the only problem I find is
> that
> > > power-profiles-daemon doesn't set the performance mode because it
> says
> > > that the temperature is too high even if it is not true (bug I
> already
> > > reported).
> > 
> > Can you verify this against the most current kernel in the 6.1.y
> > stable series? (6.1.128-1). Does the problem shows up as well with a
> > current kernel from the upper suites ideally 6.12.15-1 to test or
> > (6.13.3-1~exp1 from experimental)? Is the problem exposed there as
> > well?
> > 
> > In the case of yes, can you provide the kernel log showing the
> problem
> > and could you report it upstream to the linux-pm developers?
> > 
> > Regards,
> > Salvatore
> > 
> > 
> 
> Hi,
> the problem goes away with kernel 6.13.4-1~exp1 and the latest
> firmware-iwlwifi (sid).
> The power-profiles-daemon problem remains though.

Thanks for reporting back. If you have enough spare cycles you might
try to verify as well 6.13 mainline, if its fixed there then do a
bisect of the upstream changes between 6.1 and 6.13.

I would suggest to first narrow down more the upstream versions by
fetching the kernel revisions from the snapshots service. Once you
have a close enought range of upstream versions then do the bisection.

if you are able to determine the fix and it's missing in 6.1.y we
might try to prod upstream to have a backport to 6.1.y as well, but we
first need to get an idea about the fix.

Regards,
Salvatore

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#86550

Hi again,

On Sat, Mar 22, 2025 at 02:29:37PM +0100, Salvatore Bonaccorso wrote:
> Hi,
> 
> On Mon, Feb 24, 2025 at 06:50:59PM +0100, matte.mb2006.9990@gmail.com wrote:
> > On Fri, 21 Feb 2025 08:55:08 +0100 Salvatore Bonaccorso
> > <carnil@debian.org> wrote:
> > > Control: tags -1 + moreinfo
> > > 
> > > Hi,
> > > 
> > > On Sat, Sep 07, 2024 at 07:04:36PM +0200,
> > matte.mb2006.9990@gmail.com wrote:
> > > > Source: src:linux
> > > > Version: 6.1.0-25-amd64
> > > > Severity: minor
> > > > 
> > > > Dear Maintainer,
> > > > 
> > > > In the kernel logs I found the following log: "thermal
> > thermal_zone8:
> > > > failed to read out thermal zone (-61)", the only problem I find is
> > that
> > > > power-profiles-daemon doesn't set the performance mode because it
> > says
> > > > that the temperature is too high even if it is not true (bug I
> > already
> > > > reported).
> > > 
> > > Can you verify this against the most current kernel in the 6.1.y
> > > stable series? (6.1.128-1). Does the problem shows up as well with a
> > > current kernel from the upper suites ideally 6.12.15-1 to test or
> > > (6.13.3-1~exp1 from experimental)? Is the problem exposed there as
> > > well?
> > > 
> > > In the case of yes, can you provide the kernel log showing the
> > problem
> > > and could you report it upstream to the linux-pm developers?
> > > 
> > > Regards,
> > > Salvatore
> > > 
> > > 
> > 
> > Hi,
> > the problem goes away with kernel 6.13.4-1~exp1 and the latest
> > firmware-iwlwifi (sid).
> > The power-profiles-daemon problem remains though.
> 
> Thanks for reporting back. If you have enough spare cycles you might
> try to verify as well 6.13 mainline, if its fixed there then do a
> bisect of the upstream changes between 6.1 and 6.13.
> 
> I would suggest to first narrow down more the upstream versions by
> fetching the kernel revisions from the snapshots service. Once you
> have a close enought range of upstream versions then do the bisection.
> 
> if you are able to determine the fix and it's missing in 6.1.y we
> might try to prod upstream to have a backport to 6.1.y as well, but we
> first need to get an idea about the fix.

Might be this one: a8a261774466 ("thermal: core: Call
monitor_thermal_zone() if zone temperature is invalid") in which case
the unstable kernel should as well do not expose anymore the log
error.

Regards,
Salvatore

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