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    SubjectRe: [linux-pm] [PATCH 1/3] PCI: Rework default handling of suspend and resume


    On Sat, 6 Dec 2008, Arjan van de Ven wrote:
    >
    > the problem is that the system bios can have reassigned interrupts
    > after resume, and afaik we need to re-evaluate the ACPI methods to
    > get the new mapping.
    > So we need to unregister + re-register to make that happen

    Can you give actual examples of real life situations?

    Because quite frankly, it sounds less and less likely for any relevant
    hardware. It's a non-issue for MSI, for example. And it's a non-issue for
    any sane interrupt source I can think of.

    In other words, I've heard that claim before - and I just don't believe
    it. I've never heard a realistic explanation of why it would happen for a
    normal PCI driver. And I still claim that it's a very odd and special case
    if it does.

    And btw, I'm talking suspend, not hibernate.

    Linus


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