MSI and MMCONFIG, again...

[Dave Jones]

On Thu, Aug 09, 2007 at 03:36:54PM -0400, Chuck Ebbert wrote:
 > On 08/08/2007 10:50 PM, Dave Jones wrote:
 > > On Wed, Aug 08, 2007 at 01:41:57PM -0400, Chuck Ebbert wrote:
 > >  > On 08/08/2007 01:28 PM, Prarit Bhargava wrote:
 > >  > >> We are still hitting problems with MSI (and probably mmconfig)
 > >  > >> with kernel 2.6.22:
 > >  > >>
 > >  > >> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=249469
 > >  > >>
 > >  > >> Should we just go back to disabling these by default?
 > >  > >>   
 > >  > > 
 > >  > > Chuck -- how long have we had this re-enabled?  What about (groan) doing
 > >  > > quirks for msi/mmconfig?
 > >  > > 
 > >  > 
 > >  > They were re-enabled with the new 2.6.22 kernels for Fedora 6 and 7.
 > >  > 
 > >  > And there are quirks in there now, I guess the list just isn't complete
 > >  > (and probably never can be.)
 > > 
 > > Weren't there other newer devices that need MSI on ?
 > > Some of the infiniband stuff maybe?
 > > 
 > > As painful as it is, additional quirks would be the best all-round
 > > solution I think.
 > > 
 > 
 > I think it would be best to turn MSI off in FC6, where it's already been off
 > for a long time anyway.

Might be useful to do that as a comparison too.  If a bug goes away on
FC6, and sticks around on later releases, whilst we're on the same
codebase, we should be able to spot MSI failures a little easier.

	Dave

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