Public bug reported:
New platforms have hardware registers for routing table implemented as
"write once". Once set by UEFI firmware during POST, OS will not be able
to modify the routing table, and ACPI _PRS method are removed according
to ACPI spec.
As a result, generating the error messages "ACPI Exception:
AE_NOT_FOUND, Evaluating _PRS" in kernel by default does not make sense,
and they should be muted by default.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Alex Hung (alexhung)
Status: New
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Alex Hung (alexhung)
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https://bugs.launchpad.net/bugs/1773295
Title:
False positive ACPI _PRS error messages
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