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    SubjectRe: x86: memtest bootparam

    * Yinghai Lu <> wrote:

    > > > OK. Did the new memtest feature get documented anywhere, btw?
    > > > I'm only vaguely aware of its existence.
    > >
    > > Actually it would be nice if memtest was global, not x86-specific,
    > > feature.
    > >
    > > I had some fun with arm running with 256mb, when only 128mb was
    > > present. It booted succesfully...
    > depends if you have find_e820_area_size in you platform. that need
    > reserve_early...
    > maybe we need to make reserve_early generic at first.

    e820 is very x86 specific - i think the proper interface would be to
    move the memtest feature to the bootmem subsystem. I.e. to run it once
    all the early reservations have been flushed into bootmem - but before
    we free all bootmem pages into the page allocator.

    this still leaves a rather large amount of RAM to be tested, and keeps
    it all cross-arch as well. Hm?


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