Re: ACPI IRQ storm with 6.10

From: Jiri Slaby
Date: Wed Aug 14 2024 - 02:48:09 EST


On 14. 08. 24, 7:22, Jiri Slaby wrote:
Hi,

one openSUSE's user reported that with 6.10, he sees one CPU under an IRQ storm from ACPI (sci_interrupt):
   9:   20220768          ...  IR-IO-APIC    9-fasteoi   acpi

At:
https://bugzilla.suse.com/show_bug.cgi?id=1229085

6.9 was OK.

With acpi.debug_level=0x08000000 acpi.debug_layer=0xffffffff, there is a repeated load of:
evgpe-0673 ev_detect_gpe         : Read registers for GPE 6D: Status=20, Enable=00, RunEnable=4A, WakeEnable=00

0x6d seems to count excessively (10 snapshots every 1 second):
/sys/firmware/acpi/interrupts/gpe6D: 82066 EN STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 86536 EN STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 90990 STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 95468 EN STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 100282 EN STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 105187 STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 110014 STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 114852 STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 119682 STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 124194 STS enabled unmasked
/sys/firmware/acpi/interrupts/gpe6D: 128641 EN STS enabled unmasked

acpidump:
https://bugzilla.suse.com/attachment.cgi?id=876677

DSDT:
https://bugzilla.suse.com/attachment.cgi?id=876678

Any ideas?

thanks,--
js