From: Deak, Imre
Subject: 4.9-rc1: [TMP_] ACPI namespace lookup failure, AE_ALREADY_EXISTS
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
[ 59.513446] ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog
[ 59.513469] ACPI Error: Method parse/execution failed [\_SB.PCI0.SCPG]
[ 59.515415] ACPI Error: Method parse/execution failed [\_SB.PCI0.SDHA._PS3] (Node
[ 59.517118] ACPI: Marking method _PS3 as Serialized because of AE_ALREADY_EXISTS
Other than these error messages, booting and suspend/resume seems to work ok.
Bisecting points to
Author: Lv Zheng <lv.zheng(a)intel.com>
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.
I checked the code, only found one issue.
And I'm not sure if it is related.
Please send me the full dmesg containing the errors and the acpidump output.
Please give the fix a try (see attachment).
I'm sorry for sending fix patch using attachment.
It's not convenient for me due to my current working environment.
Thanks and best regards