Fwd: Continuous ACPI errors resulting in high CPU usage by journald

[Bagas Sanjaya <bagasdotme@gmail.com>]

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Hi,

On Bugzilla, danilrybakov249@gmail.com reported stable-specific, ACPI error
regression that led into high CPU temperature [1]. He wrote:

> Overview:
> 
> After updating from lts v6.6.14-2 to lts v6.6.17-1 noticed high CPU temperature and lag. After running htop noticed that journald was using 30-60% of CPU. Afterwards, tried switching to stable, or lts v6.6.18-1, but encountered the same issue.
> 
> Running journalctl -f gives these lines over and over again:
> 
> Feb 19 21:09:12 danirybe kernel: ACPI Error: Could not disable RealTimeClock events (20230628/evxfevnt-243)
> Feb 19 21:09:12 danirybe kernel: ACPI Error: No handler or method for GPE 08, disabling event (20230628/evgpe-839)
> Feb 19 21:09:12 danirybe kernel: ACPI Error: No handler or method for GPE 0A, disabling event (20230628/evgpe-839)
> Feb 19 21:09:12 danirybe kernel: ACPI Error: No handler or method for GPE 0B, disabling event (20230628/evgpe-839)
> Feb 19 21:09:12 danirybe kernel: ACPI Error: No installed handler for fixed event - PM_Timer (0), disabling (20230628/evevent-255)
> Feb 19 21:09:12 danirybe kernel: ACPI Error: No installed handler for fixed event - PowerButton (2), disabling (20230628/evevent-255)
> Feb 19 21:09:12 danirybe kernel: ACPI Error: No installed handler for fixed event - SleepButton (3), disabling (20230628/evevent-255)
> 
> My system info:
> 
> Laptop model: ASUS VivoBook D540NV-GQ065T
> OS: Arch Linux x86_64
> Kernel: 6.6.14-2-lts
> WM: sway
> CPU: Intel Pentium N420 (4) @ 2.500GHz
> GPU1: Intel Apollo Lake [HD Graphics 505]
> GPU2: NVIDIA GeForce 920MX
> 
> I've pinned down the commit after which the problem occurs:
> 
> 847e1eb30e269a094da046c08273abe3f3361cf2 is the first bad commit
> commit 847e1eb30e269a094da046c08273abe3f3361cf2
> Author: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
> Date:   Mon Jan 8 15:20:58 2024 +0900
> 
>     platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe
>     
>     commit 5913320eb0b3ec88158cfcb0fa5e996bf4ef681b upstream.
> 
> <snipped>...

See Bugzilla for the full thread.

Thanks.

[1]: https://bugzilla.kernel.org/show_bug.cgi?id=218531

-- 
An old man doll... just what I always wanted! - Clara

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