On Monday 12 May 2003 17:05, Mike Arrison wrote:
> Isn't that the model model of that really common RealTek NIC?  Maybe
> that helps.
No, it is Intels programmable Interrupt controller 8259A. Was once a single 
chip (28 Pin DIP) is now included in the chipset. has 8 interrupt inputs and 
one output (which goes to the cpu or to a cascaded 8259.
if the cpu gets a irq, it command the 8259's to tell the interruptvector 
(=RAM-Address, which has been programmd in the first boot-phase) and the cpu 
jumps to this address.
This was the way used with 8086. maybe nowadays with apic this is a litte bit 
differend *g*

spurious interrrupt request 7 means that the pic requested the Interrupt 
Handler for 7 but there is no Handler registered for 7.

some ideas:

- check at booting, if there is a device using 7 (nic, parallel, 
sound-card,..)

- check in the bios, is some device (parallel,..) is set to 7. If yes, change 
it (I use 3,4 for COM, 5 for parallel), reboot and check if irq7 is used by 
another device (NIC, usb,...)

- set in the bios that 7 is used by ISA (so, no plug&play with this irq and 
maybe your problem vanishes) and set parallel to 7.

ciao
Joe

>
>     -Mike Arrison
>
> On Mon, May 12, 2003 at 04:59:43PM +0200, Kay Dohmann wrote:
> > Hi.
> > Does anybody know why I get the kernel message "spurious 8259A interrupt:
> > IRQ7."? This message comes every time I boot. I guess I have an kernel
> > driver too much in my kernel. Which is it?
> > Thanks for any help.
> > K. Dohmann
> >
> > --
> > gentoo-user <at> gentoo.org mailing list

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