Re: [PATCH] x86_64 VIA chipset IOAPIC fix

[Tony Lindgren <tony@atomide.com>]

* Len Brown <len.brown@intel.com> [040325 16:15]:
> 
> I think we need to tread carefully in this area.
> Ignoring the result of _CRS means that we really don't
> know if the IRQ is programmed or not.  We could attach
> a device to the wrong IRQ and not know it.
> Unclear if that risk is a better policy than pretending
> we confirmed that the IRQ was successfully programmed
> when it may not have been.

Yeah, that's what I thought too.

> perhaps you can attach this patch to 1581 and we can work there
> to come up with a "disabled links patch" that makes sense
> for all systems.  We might find that we need only a small
> VIA-specific tweak to an otherwise robust policy.

OK, I've attached it there. While waiting for the generic fix, I've also
posted the patch to my amd64 page for m6805 and m6807 owners who might
the patch handy:

http://www.muru.com/linux/amd64/

> If your dmesg and acpidmp are different from 2090, it would
> be good to attach them also.

No, looks the same.

Regards,

Tony