[openib-general] [discuss] Re: 2.6.19-rc4: known unfixed regressions (v3)

[Matthew Wilcox]

On Wed, Nov 08, 2006 at 08:39:44AM +0100, Andi Kleen wrote:
> ACPI knows the number of busses.

But what if the number of busses increases later, eg by hotplugging
a card with a PCI-PCI bridge on it?  Or does it know the number of
busses which can be supported by this machine's MMCONFIG region?
If so, why isn't this information reported in the MCFG table properly
instead of claiming to support 0-255?

> Just need to get the information there, which is a ordering issue
> (normally MCFG initialization is before this is known I think)
> 
> Len, ACPI folks, any ideas how to fix this cleanly?
> 
> -Andi