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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
Date: Sun, 30 Oct 2022 15:15:15 +0100	[thread overview]
Message-ID: <20221030141515.GA4547@alphanet.ch> (raw)
In-Reply-To: <532f711c-6566-8a69-a199-4753bd24111e@roeck-us.net>

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.

  reply	other threads:[~2022-10-30 14:15 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-29 12:33 Power measurement wrong when idle Marc SCHAEFER
2022-10-29 13:52 ` Guenter Roeck
2022-10-30 14:15   ` Marc SCHAEFER [this message]
2022-11-04 10:52   ` Marc SCHAEFER
2022-11-05 14:31     ` Marc SCHAEFER
2022-11-07  2:41       ` Guenter Roeck

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