On Wed, Jun 20, 2012 at 11:46 AM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: > As far as I can tell, here's Yinghai's recommendation: the user > argument should not override BIOS _PXM because if the BIOS gets the > _PXM wrong, the user won't be able to work around it with the > argument, which will force the vendor to fix the BIOS. > > I'm not buying it. The convention that user-supplied arguments always > take precedence is useful, easy to document, and matches user > expectations. It allows the user to work around both missing _PXM and > incorrect _PXM. if the vendor provide _PXM, that _PXM should be right and be trusted. if the vendor does not provide _PXM, we can have command line to input it before user can get one updated BIOS from vendor. 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