Re: I've stopped the 'Spurious interrupts on IRQ7'

[Rene Rebe <rene.rebe@gmx.net>]

Hi.

From: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
Subject: Re: I've stopped the 'Spurious interrupts on IRQ7'
Date: Mon, 28 Jan 2002 10:46:02 -0200

> On 28 January 2002 06:37, Alex Davis wrote:
> > I added the following line to /etc/lilo.conf
> >
> > append = "parport=0x378,7"
> >
> > and re-ran lilo. I also noticed that the 'ERR' field in
> > /proc/interrupts stays at 0, whereas before the mod it
> > was increasing.
> 
> Do you have a printer? Try to boot while it is powered off.
> WHAT is generating irq 7 now?

Hi. As I stated before I get "Spurious interrupts on IRQ7" ony many
(all?) systems (from AMD-K62/Ali, over Pentium-II to AMD-K7-XP/SiS)
with the latest kernels. I started arround 2.4.14/15 ... - None system
has anything attached to the LPT port ...

I'll try to find some time to reboot some to see where it started ...

> It is documented that interrupt controller will report irq 7 if it sees irq 
> but cannot determine what device sends it. That's exactly what's happening 
> when you see "spurious int" message.
> 
> You made kernel believe it's from printer. That does not cure the real 
> problem. BTW, there's not much of a problem, kernel just ignores spurious 
> interrupts. It _is_ a problem if you see 'ERR' number rapidly increasing.
> --
> vda

k33p h4ck1n6
  René

-- 
René Rebe (Registered Linux user: #248718 <http://counter.li.org>)

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