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    SubjectRe: PATCH 2.5.x disable BAR when sizing
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    On Fri, Dec 20, 2002 at 12:14:43PM -0800, Linus Torvalds wrote:
    > Th eone system I had myself was a Sony PCG-CR1. I don't have any pointers
    > to the discussion, it was in the late 2.3.x tree if I remember correctly.

    tnx - I'll look for that.

    > Unlikely. The IO-APIC on x86 is in that region, but it doesn't respond
    > from external sources, it's not actually on the PCI bus and only visible
    > from the CPU. And the CPU decodes that address internally and sends it on
    > the APIC bus and thus PCI devices simply do not matter for it.

    xAPIC != APIC
    xAPIC ~= SAPIC
    AFAICT, My x86 system uses an IO-xAPIC which programmed exactly like
    the IO-SAPIC on IA64. i wrote the parisc IO-SAPIC support.
    I haven't tried to reproduce the problem seen with IA64 on this box
    and it's possible I just can't.

    > There's no point in you arguing about this. The problem exists and is real
    > on x86. The patch posted IS NOT GOING IN. That's final, and there's just
    > no point to arguing about it.

    I agree - it shouldn't.

    > Alternative methods anyone?

    I'll work one out with Ivan K - he usually has good ideas.

    thanks,
    grant
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