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SubjectRe: why DMAable memory restriction ?
> In the linux kernel there is a limitation on the
> amount of contiguous DMAable memory that can be allocated
> (I guess about 128K). Does anobody know what is the reason

128K or so , if you are lucky.

> for such a restriction ? Is there any plan to remove

Because the pages are contiguous so you have to find a suitable sized piece
of free memory

> this restriction in the future releases of kernel ?

Nope. 2.4 adds bootmem though so badly designed hardware that is compiled in
can grab memory early in biggish chunks.

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