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    SubjectRe: [PATCH] x86: disable_mtrr_trim only need for x86_64
    Yinghai Lu wrote:
    > [PATCH] x86: disable_mtrr_trim only need for x86_64
    >
    > mtrr_trim_uncached_memory is only used in x86_64,
    >
    > so disable_mtrr_trim is not needed for x86_32
    >
    > Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>

    That seems like a bug, and if so this patch goes the wrong direction.
    (If the 32-bit code has another solution for the same problem, they
    should be unified.)

    The trimming of uncachable memory affects both 32- and 64-bit kernels;
    it's the same hardware, and even 32-bit kernels (with PAE) can access
    memory above 4 GB.

    -hpa


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