2006-02-21 19:08:46

by Bjorn Helgaas

Subject: MMCONFIG broken on Tyan K8WE [was: Fusion MPT driver does not detect controller]

This 2.6.15.4 bug is languishing in bugzilla:

http://bugzilla.kernel.org/show_bug.cgi?id=6060

Devices behind a PCI-X bridge are invisible unless the submitter
uses "pci=nommconf". The devices worked in 2.6.13.5, because we
always disabled mmconfig for AMD CPUs then. But now it's broken.

I also found this problem report, which may be the same problem:
http://lists.debian.org/debian-amd64/2006/02/msg00119.html

2006-02-21 19:18:57

by Greg KH

Subject: Re: MMCONFIG broken on Tyan K8WE [was: Fusion MPT driver does not detect controller]

On Tue, Feb 21, 2006 at 12:08:38PM -0700, Bjorn Helgaas wrote:
> This 2.6.15.4 bug is languishing in bugzilla:
>
> http://bugzilla.kernel.org/show_bug.cgi?id=6060
>
> Devices behind a PCI-X bridge are invisible unless the submitter
> uses "pci=nommconf". The devices worked in 2.6.13.5, because we
> always disabled mmconfig for AMD CPUs then. But now it's broken.

It should have been assigned to the pci subsystem, then it would not be
languishing :)

I've fixed that.

We have a patch in the latest -mm that should take care of this issue.

thanks,

greg k-h