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    SubjectRe: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
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    On 4/13/09, H. Peter Anvin <hpa@zytor.com> wrote:
    > Ingo Molnar wrote:
    >>> Yes, we could do memory checks, and ... hey, we already do that:
    >>>
    >>> bb577f9: x86: add periodic corruption check
    >>> 5394f80: x86: check for and defend against BIOS memory corruption
    >>>
    >>> ... and i seem to be the one who implemented it! ;-)
    >>
    >> s/implemented/merged+fixed :-)
    >
    > Actually, what would probably be more productive than trying to track
    > corruption would be to drop the low 1 MB of memory before suspend to RAM
    > - make sure that it is as close to completely unused as possible.
    >
    > All *known* cases of low memory corruption are either boot time or due
    > to s2ram.

    IIRC, the first person to report the issue found that it triggered
    when hotplugging a HDMI cable.


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