On Wed, Jun 20, 2012 at 10:56 PM, Brice Goglin <brice.goglin@xxxxxxxxx> wrote: >> I suspected that could be other problem. intel system before >> sandbridge does not have IIO. >> they will have ioh instead, and one ioh would connect to two cpu sockets. >> but _PXM for root bus in dsdt only can return one value. Aka it is >> acpi spec limitation. > > The machines I am talking about have two IOHs (one connected to each > socket). I only have an old 2.6.27 boot log at hand, I'll ask my admins > for more. Do you want the 2.6.27 dmesg anyway? > log from 2.6.27 should be good enough for this. BIOS _PXM return 0 for both pci root buses? those systems with two IOHs really deserve good BIOS. Hope we can have more updated machines with open sourced firmware. Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html