Ok. Decided just to disable it by default. We can also DMI blacklist (or whitelist) MMCONFIG on different boards based on HW Certification testing.
** Changed in: linux-source-2.6.20 (Ubuntu) Status: Fix Committed => Fix Released -- Gigabyte 965G-DS3 fails with PCI MMCONFIG access method https://launchpad.net/bugs/80503 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs