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Date:   Sun, 30 Oct 2022 15:15:15 +0100
From:   Marc SCHAEFER <schaefer@alphanet.ch>
To:     Guenter Roeck <linux@roeck-us.net>
Cc:     linux-hwmon@vger.kernel.org
Subject: Re: Power measurement wrong when idle
Message-ID: <20221030141515.GA4547@alphanet.ch>
References: <20221029123338.GA11915@alphanet.ch>
 <532f711c-6566-8a69-a199-4753bd24111e@roeck-us.net>
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Hello,

On Sat, Oct 29, 2022 at 06:52:41AM -0700, Guenter Roeck wrote:
> - Debian might carry some non-upstream driver patches causing the problem
>   (or fixing it in the older kernel, and the patch was not applied to the
>   new kernel).

I think I diffed the two kernel sources properly.

> - Debian installs its own version of the CPU firmware, and the version
>   installed with the newer kernel introduces the problem.

Possible, at least the CPU firmwares are the same version according to
/proc/cpuinfo.

> For the last one, the only means I could think of would be to bisect between
> the good and the bad version.

Yes, I will try that as soon as I have hardware that I can remove from
production.

Thank you.