Hi, Imre
> From: Deak, Imre
> Subject: 4.9-rc1: [TMP_] ACPI namespace lookup failure, AE_ALREADY_EXISTS
>
> Hi,
>
> after upgrading to 4.9-rc1 I get the following errors occasionally
> during boot and suspend-to-ram on an APL system:
>
> [ 59.513434] ACPI Error: [TMP_] Namespace lookup failure, AE_ALREADY_EXISTS (20160831/dswload2-330)
> [ 59.513446] ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog (20160831/psobject-227)
> [ 59.513469] ACPI Error: Method parse/execution failed [\_SB.PCI0.SCPG] (Node ffff8802770b7bb8),
> AE_ALREADY_EXISTS (20160831/psparse-543)
> [ 59.515415] ACPI Error: Method parse/execution failed [\_SB.PCI0.SDHA._PS3] (Node ffff8802770b7dc0),
> AE_ALREADY_EXISTS (20160831/psparse-543)
> [ 59.517118] ACPI: Marking method _PS3 as Serialized because of AE_ALREADY_EXISTS error
Could you send me acpidump output?
>
> Other than these error messages, booting and suspend/resume seems to work ok.
> Bisecting points to
> commit 74f51b80a0c4ff84fbeb7f12ea43ce66934d29aa
> Author: Lv Zheng <lv.zheng@xxxxxxxxx>
> Date: Wed Sep 7 14:07:10 2016 +0800
>
> ACPICA: Namespace: Fix dynamic table loading issues
>
> Reverting this on top of 4.9-rc1 gets rid of the error messages.
This fix is essential.
Without this, all of other ACPICA fixes can easily fall into dead locks.
So we won't simply revert it just because of non-functional-failure error messages.
Instead, we will improve it.
Thanks and best regards
Lv
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