[H-GEN] Spurious 8259A interrupt

Christopher Biggs chris at stallion.oz.au
Thu Aug 23 01:12:23 EDT 2001


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Robert Brockway <robert at timetraveller.org> moved upon the face of the 'Net and spake thusly:

> On Thu, 23 Aug 2001, Paul Cornford wrote:
> 
> > I have just installed RH7.1 on a friends PC and when I try dialing out
> > using kppp I get the error message "Spurious 8259 interrupt: IRQ7." in
> > messages. kppp successfully initializes the modem. In KDE control panel
> > I have noticed that IRQ 7 is not listed. The mouse uses IRQ 12. Can
> > anyone explain this problem to me?
> 
> Irq7 is normally the first parrallel port.  This would normally be a
> printer.  Does the box have a printer or does the kernel have printer
> support?
> 
> Normally irq7 have _nothing_ to do with the serial devices.

If it's an internal (possibly "plug-and-pray") modem which appears as
a third (or subsequent) serial port, it may be connecting itself to
IRQ 7, in which case you'd need to use the setserial(8) utility at
boot-time to tell the kernel that there's a nonstandard serial port,
using a nonstandard IRQ.

I'm a little rusty on Red Hat, but the command
      
      find /etc -name "*serial*"

will locate the file you need to examine, probably
/etc/init.d/setserial or something like that.

--cjb

-- 
Christopher Biggs -- chris at stallion.oz.au -- Stallion Technologies Australia.
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