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charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit Hi, On 10/5/2023 5:58 PM, Borah, Chaitanya Kumar wrote: > > Hello Rafael, > > Hope you are doing well. I am Chaitanya from the linux graphics team > in Intel. > > This mail is regarding a regression we are seeing in our CI runs[1] on > linux-next repository. > Thanks for the report, I think that this is a lockdep assertion failing. If that is correct, it should be straightforward to fix. I'll take care of this early next week. Thanks! > On next-20231003 [2], we are seeing the following error > > ``````````````````````````````````````````````````````````````````````````````` > > <4>[ 14.093075] ------------[ cut here ]------------ > > <4>[ 14.097664] WARNING: CPU: 0 PID: 1 at > drivers/thermal/thermal_trip.c:18 for_each_thermal_trip+0x83/0x90 > > <4>[ 14.106977] Modules linked in: > > <4>[ 14.110017] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W >       6.6.0-rc4-next-20231003-next-20231003-gc9f2baaa18b5+ #1 > > <4>[ 14.121305] Hardware name: Intel Corporation Meteor Lake Client > Platform/MTL-P DDR5 SODIMM SBS RVP, BIOS > MTLPFWI1.R00.3323.D89.2309110529 09/11/2023 > > <4>[ 14.134478] RIP: 0010:for_each_thermal_trip+0x83/0x90 > > <4>[ 14.139496] Code: 5c 41 5d c3 cc cc cc cc 5b 31 c0 5d 41 5c 41 5d > c3 cc cc cc cc 48 8d bf f0 05 00 00 be ff ff ff ff e8 21 a2 2d 00 85 > c0 75 9a <0f> 0b eb 96 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 > 90 90 > > Details log can be found in [3]. > > After bisecting the tree, the following patch [4] seems to be causing > the regression. > > commit d5ea889246b112e228433a5f27f57af90ca0c1fb > > Author: Rafael J. Wysocki rafael.j.wysocki@intel.com > > Date:   Thu Sep 21 20:02:59 2023 +0200 > >     ACPI: thermal: Do not use trip indices for cooling device binding > >     Rearrange the ACPI thermal driver's callback functions used for > cooling > >     device binding and unbinding, acpi_thermal_bind_cooling_device() and > >     acpi_thermal_unbind_cooling_device(), respectively, so that they > use trip > >     pointers instead of trip indices which is more straightforward and > allows > >     the driver to become independent of the ordering of trips in the > thermal > >     zone structure. > >     The general functionality is not expected to be changed. > >     Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com > >     Reviewed-by: Daniel Lezcano daniel.lezcano@linaro.org > > We also verified by moving the head of the tree to the previous commit. > > Could you please check why this patch causes the regression and if we > can find a solution for it soon? > > [1] https://intel-gfx-ci.01.org/tree/linux-next/combined-alt.html? > > [2] > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20231003 > > [3] > https://intel-gfx-ci.01.org/tree/linux-next/next-20231003/bat-mtlp-6/boot0.txt > > [4] > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20231003&id=d5ea889246b112e228433a5f27f57af90ca0c1fb > > --------------mEvqkdgAte8Me0i6iNVf9vm8 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: 8bit

Hi,

On 10/5/2023 5:58 PM, Borah, Chaitanya Kumar wrote:

Hello Rafael,

 

Hope you are doing well. I am Chaitanya from the linux graphics team in Intel.

This mail is regarding a regression we are seeing in our CI runs[1] on linux-next repository.

 

Thanks for the report, I think that this is a lockdep assertion failing.

If that is correct, it should be straightforward to fix.

I'll take care of this early next week.

Thanks!


On next-20231003 [2], we are seeing the following error

 

```````````````````````````````````````````````````````````````````````````````

<4>[   14.093075] ------------[ cut here ]------------

<4>[   14.097664] WARNING: CPU: 0 PID: 1 at drivers/thermal/thermal_trip.c:18 for_each_thermal_trip+0x83/0x90

<4>[   14.106977] Modules linked in:

<4>[   14.110017] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W          6.6.0-rc4-next-20231003-next-20231003-gc9f2baaa18b5+ #1

<4>[   14.121305] Hardware name: Intel Corporation Meteor Lake Client Platform/MTL-P DDR5 SODIMM SBS RVP, BIOS MTLPFWI1.R00.3323.D89.2309110529 09/11/2023

<4>[   14.134478] RIP: 0010:for_each_thermal_trip+0x83/0x90

<4>[   14.139496] Code: 5c 41 5d c3 cc cc cc cc 5b 31 c0 5d 41 5c 41 5d c3 cc cc cc cc 48 8d bf f0 05 00 00 be ff ff ff ff e8 21 a2 2d 00 85 c0 75 9a <0f> 0b eb 96 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90

 

Details log can be found in [3].

 

After bisecting the tree, the following patch [4] seems to be causing the regression.

 

commit d5ea889246b112e228433a5f27f57af90ca0c1fb

Author: Rafael J. Wysocki rafael.j.wysocki@intel.com

Date:   Thu Sep 21 20:02:59 2023 +0200

 

    ACPI: thermal: Do not use trip indices for cooling device binding

 

    Rearrange the ACPI thermal driver's callback functions used for cooling

    device binding and unbinding, acpi_thermal_bind_cooling_device() and

    acpi_thermal_unbind_cooling_device(), respectively, so that they use trip

    pointers instead of trip indices which is more straightforward and allows

    the driver to become independent of the ordering of trips in the thermal

    zone structure.

 

    The general functionality is not expected to be changed.

 

    Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com

    Reviewed-by: Daniel Lezcano daniel.lezcano@linaro.org

 

We also verified by moving the head of the tree to the previous commit.

 

Could you please check why this patch causes the regression and if we can find a solution for it soon?

 

[1] https://intel-gfx-ci.01.org/tree/linux-next/combined-alt.html?

[2] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20231003

[3] https://intel-gfx-ci.01.org/tree/linux-next/next-20231003/bat-mtlp-6/boot0.txt

[4] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20231003&id=d5ea889246b112e228433a5f27f57af90ca0c1fb

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