On Fri, 23 Jun 2006 02:00:44 +0100 Sergio Monteiro Basto wrote:

> On Thu, 2006-06-22 at 15:54 -0700, Chris Wedgwood wrote:
> > On Thu, Jun 22, 2006 at 11:46:38PM +0100, Sergio Monteiro Basto wrote:
> > 
> > > yap, in my opinion this function should back to
> > 
> > > +DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_irq);
> > 
> > 
> > this is *obviousyl* wrong, it should never have been merged like that
> > and there are reports and complaints this causes problems for some
> > people
> >
> 
> It was like that in kernel 2.6.16 and previous since, I don't know,
> 2.6.9 or 2.6.13 ....
> 
> > 
> > we should first attempt to get all the IDs (some are clearly missing
> > still, patch coming up to address that) and where that fails perhaps
> > have a kernel command-line parameter to be overly aggressive as a
> > stop-gap until we van figure out the proper solution
> 
> I believe this quirks is just for VIA system with interrupts in XT-PIC
> mode (like my old laptop).

This sounds like just running with CONFIG_IO_APIC=n or using
"noapic" on the kernel boot command line.  If that's what is
needed, we can know that.  I just haven't seen info to know
what the real problem is.

> > i'd also like to figure out why the quirk is needed/fails when people
> > are using ACPI for interrupt routing as presumbly that must work as
> > windows relies on it
> 
> yes, this is other mysterious, why boot with acpi=noirq could be one
> workaround. But could be other problem more related with usb drives.


---
~Randy

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