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SubjectRe: IRQs in /proc/irq/* that aren't listed in /proc/interrupts?
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On 10/12/2020 1:37 PM, Thomas Gleixner wrote:
> On Mon, Oct 12 2020 at 12:40, Chris Friesen wrote:
>> On one of my X86-64 systems /proc/interrupts starts with the following
>> interrupts (per-cpu info snipped):
>>
>> 0: IR-IO-APIC-edge timer
>> 4: IR-IO-APIC-edge serial
>> 8: IR-IO-APIC-edge rtc0
>> 9: IR-IO-APIC-fasteoi acpi
>> 17: IR-IO-APIC-fasteoi ehci_hcd:usb1, hpilo
>>
>>
>> On this same system /proc/irq shows these interrupts:
>>
>> 0-15, 17
>>
>> Is there any way to determine what the interrupts are that aren't listed
>> in /proc/interrupts?
>
> They are simply unused

I wonder if it might be clearer to just not report them at all if
they're not used?

Anyways, thanks for the explanation.

Chris

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