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SubjectRe: don't let mmap allocate down to zero
On Fri, Jan 28, 2005 at 02:14:36PM +0000, Hugh Dickins wrote:
> I had imagined that top down (non-FIXED) would continue to make
> more space available, the space below the text, just cutting off
> at PAGE_SIZE. There was a more serious lower limit on ARM under
> discussion before, but ARM doesn't use top down so far as I can see.
rmk chimed in at one point and made it clear that ARM's actual lower
bounday was PAGE_SIZE (before that, all I knew was:
0 < x <= (FIRST_USER_PGD_NR << PGDIR_SHIFT)).


-- wli
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