https://bugzilla.kernel.org/show_bug.cgi?id=86561

--- Comment #11 from Zhang Rui <[email protected]> ---
(In reply to Constantine from comment #10)
> @Zhang Rui, for completeness, please, could you either elaborate a bit, or —
> even better — point out a link to docs/discussion/posts/anything about why
> is this happen?

you can check the description of acpi_enforce_resources boot option in
Documentation/kernel-parameters.txt

> Like, why would the region conflict,

simple, both ACPI and native driver wants to access the same piece of resource.

> is it a problem with
> BIOS or driver,

Depends. We need to check if the conflict case by case and see if ACPI/driver
should access it or not.

> why the driver takes away that region instead of choosing
> non-conflicting one, and why most of the time is it safe anyway…?

In most of cases, although both of them require the same piece of resource,
only one of them is the actual resource consumer.

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