Curious failure...

[Doug Ledford]

Chris Roy wrote:
> 
> Oops! I meant to send this to the list ... sorry
> 
> Funny thing, I'm also using a dual PII 300 system and having aic7895
> problems, if I understand your suggestion Doug, then the noapic option
> WILL solve the conflict I have. While the box is booting it reports the
> 7895 on pci12/0 @ irq 11 AND pci12/1 @ irq 11. When the kernel boots,
> the pci addresses for both channels match but the irq assigned is 16 for
> each channel. Yes / no

Depends.  If your problem is that the aic7xxx starts into a reset loop
immediately after loading the driver and the system never comes up, then it
should solve your problem.  If your problems are intermittent problems, then
it won't help.  This fix solves and "all or nothing" type problem.

> Chris
> 
> snip snip snip
> 
> Doug Ledford wrote:
> >
> > Boot the linux kernel with the option "noapic" and everything should be fine.
> > What you describe is the typical condition when the IO-APIC code in the SMP
> > kernel gets the interrupt mapping wrong.
> >
> > --
> >   Doug Ledford   <dledford at redhat.com>
> >    Opinions expressed are my own, but
> >       they should be everybody's.
> >
> > To Unsubscribe: send mail to majordomo at FreeBSD.org
> > with "unsubscribe aic7xxx" in the body of the message

-- 
  Doug Ledford   <dledford at redhat.com>
   Opinions expressed are my own, but
      they should be everybody's.


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