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    SubjectRe: Using Bootmem for large DMA buffers in the presence of the slab allocator
    Note also that allocating a 64M buffer will be difficult due to the
    maximum allocation size restrictions of the page allocator.

    You therefore have no choice but to allocate the memory at boot
    time. Or (if you have control over the arch) increase the maximum
    allocation unit (MAX_ORDER I believe).




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