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    SubjectRe: [PATCH] Factor in buddy allocator alignment requirements in node memory alignment
    On Mon, May 16, 2005 at 01:47:19PM -0700, Dave Hansen wrote:
    > Just because it complains doesn't mean that anything is actually
    > wrong :)
    >
    > Do you know which pieces of code actually break if the alignment doesn't
    > meet what that warning says?

    Be sure in early 2001 the alpha wildfire wasn't booting without having
    natural alingment from the 2^order allocation, after several days of
    debugging and crashing eventually I figured it out and added the printk
    (it couldn't be a BUG since it was early in the boot to see it). The
    kernel stack on x86 w/o 4k stacks depends on the natural alignment of
    the 2^order buddy allocations for example. No idea how much other code
    would break with not naturally aligned 2^order allocations.
    -
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