After booting into Linux kacpid is constantly using 100% CPU and ACPI interrupt is firing at ~10k/s.
My test environment is Optiplex 9010 with i5-3470 with dual channel DDR3 and an Nvidia GTX1650 installed as DGPU, running Fedora 32.
Coreboot logs and Linux dmesg is attached below. Captured with a build of earlier master but still reproducible on the latest master.
Hi,
Thanks for catching this. I will look into it. Most of the ACPI however is not mainboard specific. My setup contains a RADEON GPU and i7-3770 CPU.
Best regards,
Hi,
Thanks for your attention.
I took a slightly deeper look at this and discovered: The offending GPE is GPE08, which judging from the code seems to relate to superio and power button. A temporary workaround before a proper fix would be masking GPE08 on the Linux side.
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Henkaku -
Michal Zygowski