Re: "Disabling IRQ #9" - how to check for impact
- To: debian-user <debian-user@lists.debian.org>
- Subject: Re: "Disabling IRQ #9" - how to check for impact
- From: Christian Britz <cbritz@t-online.de>
- Date: Tue, 3 May 2022 09:37:42 +0200
- Message-id: <[🔎] 68294ac2-08a4-1333-051a-2288ca6f137d@t-online.de>
- In-reply-to: <cae2adba-b523-ff36-e8aa-bde34feeb348@t-online.de>
- References: <7afc136e-3673-1679-a59d-841c07030aff@t-online.de> <CAHv=rM0Kyd6WmwDATBx2FmUciHnG8+DRdUiN0NCdfAEhXBFUfw@mail.gmail.com> <cae2adba-b523-ff36-e8aa-bde34feeb348@t-online.de>
Problem seems to be gone with latest Debian stable kernel update! I
don't see the message anymore with 5.10.113.
On 2022-04-28 10:34 UTC+0200, Christian Britz wrote:
> Hello Ilya,
>
> thank you for sharing so many interesting details!
>
> On 2022-04-28 02:53 UTC+0200, IL Ka wrote:
>
>> This is a known kernel
>> bug: https://bugzilla.kernel.org/show_bug.cgi?id=207749
>> <https://bugzilla.kernel.org/show_bug.cgi?id=207749>
>
> I was almost sure the messages first appeared after the firmware update,
> but the kernel bug is much older. I will definitely follow this thread.
>
>> As we see from stacktrace, this handler is "acpi_irq" (you can also
>> check it by reading /proc/interrupts):
>
> There is a high number on CPU1:
>
> 9: 0 819113116 0 0 0 0
> 0 0 IR-IO-APIC 9-fasteoi acpi
>
> Should I be worried about that?
>
>> Many hardware things in laptops use ACPI: Brightness buttons, FN
>> buttons, volume buttons, lid etc.
>
> They seem to work.
>> If everything works as expected (you see no problem with lid, buttons
>> etc) simply ignore it.
>
> It seems so.
>
>> If no, try to install the latest kernel and file a bug to Debian (I
>
> Latest kernel from backports did not help.
>
>> You can also add "irqpoll" kernel param which will ask the kernel to
>
> I think I have read somewhere that this can make the machine very slow.
>
> So far I notice no impact of the bug, luckily. I guess I will live with
> it and hope for a fix in a kernel of a later Debian release.
>
> Best Regards,
> Christian
>
--
http://www.cb-fraggle.de
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