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    SubjectRe: [PATCH] memory hotadd fixes [4/5] avoid check in acpi
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    On Fri, 2006-08-04 at 12:48 +0900, KAMEZAWA Hiroyuki wrote:
    > On Thu, 03 Aug 2006 20:23:46 -0700
    > keith mannthey <kmannth@us.ibm.com> wrote:

    > > > > What keeps 0xa0000000 to 0xa1000000 from being re-onlined by a bad call
    > > > > to add_memory?
    > > >
    > > > Usual sparsemem's add_memory() checks whether there are sections in
    > > > sparse_add_one_section(). then add_pages() returns -EEXIST (nothing to do).
    > > > And ioresouce collision check will finally find collision because 0-0xbffffff
    > > > resource will conflict with 0xa0000000 to 0xa10000000 area.
    > > > But, x86_64 's (not sparsemem) add_pages() doen't do collision check, so it panics.
    > >
    > > I have paniced with your 5 patches while doing SPARSMEM.... I think
    > > your 6th patch address the issues I was seeing.
    > >


    with the 6 patches things work as expected. It is nice to have the
    sysfs devices online the correct amount of memory.

    I was broken without this patch because invalid add_memory calls are
    made on by box (yet another issue) during boot.

    I will build my patch set on top of your 6 patches.

    Thanks,
    Keith

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