On Sat, Apr 18, 2009 at 01:44:51AM -0700, Yinghai Lu wrote: > and BIOS set > [ 0.240007] pci 0000:00:01.0: bridge 64bit mmio pref: [0xbdf00000-0xddefffff] An obvious BIOS bug, the bridge base overlaps the physical low RAM (0x00000000-0xc0000000). Technically speaking, this nonsense *happens* to work on Intel hardware, so it seems to be quite common bug nowadays - BIOS writers get lost in ACPI and other "useful" stuff contradicting the PCI specs. ... > + /* don't allocate too high if the pref mem doesn't support 64bit*/ > + if ((res->flags & (IORESOURCE_PREFETCH | PCI_PREF_RANGE_TYPE_64)) == > + IORESOURCE_PREFETCH) > + max = 0xffffffff; This effectively destroys non-x86 64-bit arches. You've been told about that before, so I'm really surprised to see this "patch" once again. Categorically NACKed. P.S. I recall that I had a patch that addressed the issue, and Ingo made some reasonable comments about it. Will post it tomorrow. Ivan. -- 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
