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    SubjectRe: [PATCH] x86/PCI: never allocate PCI MMIO resources below BIOS_END
    On 23/04/10 17:05 -0600, Bjorn Helgaas wrote:
    >On Wednesday 21 April 2010 01:31:20 pm Andy Isaacson wrote:
    >> On Tue, Apr 20, 2010 at 10:33:50PM -0700, Yinghai wrote:
    >> > Update e820 at first, and later put them resource tree.
    >> > Reserved that early, will not be allocated to unassigned PCI BAR
    >> >
    >> > v3: remove probe_roms() that is not needed, because whole range is reserved
    >> > already
    >>
    >> Test booted this patch series on the problematic t3400, seems to work
    >> fine. dmesg attached to bug 15744.
    >
    >Thanks for testing (again). I'm not confident that this series is
    >going to be successful, so I started looking for other approaches.
    >
    >I can't reproduce the exact problem you're seeing, but in my
    >kludged-up attempt, the patch below is enough to keep us from
    >assigning the space below 1MB to a device.
    >
    >Would you guys (Andy & Andy, what a coincidence :-)) mind giving
    >it a try? This is intended to work on top of current upstream,
    >with no other patches required.
    >
    >Bjorn
    >

    Good news- that solved it. I tried Yinghai's patches saturday to no
    avail (sorry it took me so long to get back to you, I was about 5 bios
    revisions behind on this machine and wanted to update it before I
    tried any more tests).

    .andy


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