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    SubjectRe: [PATCH] x86_64: Make NR_IRQS configurable in Kconfig
    Eric W. Biederman wrote:
    >
    > a) Because I would like to flush out bugs.
    > b) Because I want a default that works for everyone.
    > c) Because with MSI we have a potential for large irq counts on most systems.
    > d) Because anyone who disagrees with me can send a patch and fix
    > the default.
    > e) Because with the default number of cpus we can very close to needing
    > this many irqs in the worst case.
    > f) This is much better than previous to my patch and setting NR_CPUS=255
    > and getting 8K IRQS.
    > g) Because I probably should have been more inventive than copying the
    > NR_IRQS text, but when I did the wording sounded ok to me.
    >

    Why not simply reserve 224*NR_CPUS IRQs? If you have 256 CPUs allocating
    64K IRQs should hardly matter :)

    -hpa
    -
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