Re: 'spurious 8259A interrupt: IRQ7'

Re: 'spurious 8259A interrupt: IRQ7'

[Martin A. Brooks]

> Something I should have added to my post is that I have a Tulip based
> NIC  from Netgear.  But I believe something is definitely amiss with
> Athlon based  machines and Tulip cards and compiled in SMP support.

Mine is a UP box.

Martin A. Brooks.

Re: 'spurious 8259A interrupt: IRQ7'

[Andreas Steinmetz]

On 27-Nov-2001 Martin A. Brooks wrote:
>> Something I should have added to my post is that I have a Tulip based
>> NIC  from Netgear.  But I believe something is definitely amiss with
>> Athlon based  machines and Tulip cards and compiled in SMP support.
> 
> Mine is a UP box.

All of my boxes are UP, too. PII, PIII, Athlon TB. Various mobos.

> 
> Martin A. Brooks.
> 
> 
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> 

Andreas Steinmetz
D.O.M. Datenverarbeitung GmbH

Re: 'spurious 8259A interrupt: IRQ7'

[Alan Cox]

> > Something I should have added to my post is that I have a Tulip based
> > NIC  from Netgear.  But I believe something is definitely amiss with
> > Athlon based  machines and Tulip cards and compiled in SMP support.
> 
> Mine is a UP box.

With IO Apic support included ? If you are using an AMD/VIA combo chipset
board that would explain it

Re: 'spurious 8259A interrupt: IRQ7'

[Martin A. Brooks]

> With IO Apic support included ? If you are using an AMD/VIA combo
> chipset board that would explain it

Yup

CONFIG_X86_UP_APIC=y
CONFIG_X86_UP_IOAPIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y

Martin A. Brooks.

Re: 'spurious 8259A interrupt: IRQ7'

[Ian Molton]

On a sunny Tue, 27 Nov 2001 14:59:34 -0000 (GMT) Martin A. Brooks gathered
a sheaf of electrons and etched in their motions the following immortal
words:

> 
> > With IO Apic support included ? If you are using an AMD/VIA combo
> > chipset board that would explain it
> 
> Yup
> 
> CONFIG_X86_UP_APIC=y
> CONFIG_X86_UP_IOAPIC=y
> CONFIG_X86_LOCAL_APIC=y
> CONFIG_X86_IO_APIC=y

Same here.

what /is/ IOAPIC? I always turned it on, but never bothered to check up on
what it is (its safe to just have it, right?)

Re: 'spurious 8259A interrupt: IRQ7'

[Andreas Steinmetz]

On 27-Nov-2001 Alan Cox wrote:
>> > Something I should have added to my post is that I have a Tulip based
>> > NIC  from Netgear.  But I believe something is definitely amiss with
>> > Athlon based  machines and Tulip cards and compiled in SMP support.
>> 
>> Mine is a UP box.
> 
> With IO Apic support included ? If you are using an AMD/VIA combo chipset
> board that would explain it

IO Apic, yes. But the PII/PIII systems are BX or I810/I815.

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> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> Please read the FAQ at  http://www.tux.org/lkml/
> 

Andreas Steinmetz
D.O.M. Datenverarbeitung GmbH

Re: 'spurious 8259A interrupt: IRQ7'

[Adam Schrotenboer]

On Tuesday 27 November 2001 10:01, Alan Cox wrote:
> > > Something I should have added to my post is that I have a Tulip based
> > > NIC  from Netgear.  But I believe something is definitely amiss with
> > > Athlon based  machines and Tulip cards and compiled in SMP support.
> >
> > Mine is a UP box.
>
> With IO Apic support included ? If you are using an AMD/VIA combo chipset
> board that would explain it
With it turned on, but no IOAPIC (figured I did have one. But it never 
worked.) present. AMD 751/756.
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-- 
tabris

   Due to management cuts, the light at the end of the tunnel will now be
   switched off.

                                                                 Graffiti

Absence of PS/2 keyboard causes spurious IRQ7? - Was Re: 'spurious 8259A interrupt: IRQ7'

[Anton Altaparmakov]

At 15:01 27/11/01, Alan Cox wrote:
>With IO Apic support included ? If you are using an AMD/VIA combo chipset
>board that would explain it

I do use IO Apic on both my machines (one athlon/via kt133, one p4/i845) 
and as long as I have a PS/2 keyboard attached I NEVER see the spurious 
interrupt message on either system.

With a USB keyboard instead of a PS/2 keyboard the VIA box but not the i845 
box starts showing the spurious IRQ7. It appears during boot exactly once 
(always) and then occasionally during system run time. Usually associated 
with me loading/unloading the ntfs module during testing.

Also when using the USB keyboard I get keyboard: Timeout - AT keyboard not 
present?(f4) messages popping up from time to time. Usually accompanied by 
a spurious IRQ7 message.

So at least on my VIA box there seems to be a relationship between the lack 
of PS/2 keyboard and the IRQ7 messages.

Note, with my PS/2 keyboard (before I upgraded to USB one) I never saw 
either of the above messages.

I recently upgraded the i845 box to USB keyboard as well and while I do see 
the kyboard: Timeout messages I do not see any spurious interrupts.

Very odd.

Best regards,

         Anton


-- 
   "I've not lost my mind. It's backed up on tape somewhere." - Unknown
-- 
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Linux NTFS Maintainer / WWW: http://linux-ntfs.sf.net/
ICQ: 8561279 / WWW: http://www-stu.christs.cam.ac.uk/~aia21/

Re: Absence of PS/2 keyboard causes spurious IRQ7? - Was Re: 'spurious 8259A interrupt: IRQ7'

[Piter Punk]

Anton Altaparmakov wrote:

> Also when using the USB keyboard I get keyboard: Timeout - AT keyboard 
> not present?(f4) messages popping up from time to time. Usually 
> accompanied by a spurious IRQ7 message.
> 
> So at least on my VIA box there seems to be a relationship between the 
> lack of PS/2 keyboard and the IRQ7 messages.
> 
> Note, with my PS/2 keyboard (before I upgraded to USB one) I never saw 
> either of the above messages.

Hi... i have (@work) a Duron with VIA82C686A and a PS/2 keyboard connected

see the same error message "blablabla spurious irq7". I think the problem is 
independent have or not the keyboard connected...


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