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

From: Rene Rebe (rene.rebe@gmx.net)
Date: Mon Jan 28 2002 - 06:53:45 EST


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>)

eMail: rene.rebe@gmx.net rene@rocklinux.org

Homepage: http://drocklinux.dyndns.org/rene/

Anyone sending unwanted advertising e-mail to this address will be charged $25 for network traffic and computing time. By extracting my address from this message or its header, you agree to these terms. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Thu Jan 31 2002 - 21:00:49 EST