> > Yes. It's VERY WELL known problem with linux MM :-((
> > Unfortunatelly right solution will need deep rework of MM
> > subsystem since now there are NO reliable way to get contigous
> > DMA-able region of memory > 4K (page).
>
> Would it help to do all non-DMA allocations from memory above the 16M
> mark if possible, and only allocate them lower than that if there was
> no memory above that mark available?
Some time ago I wrote a quick and dirty design for a zone
allocator. I guess now is the time to dust off the design
(http://www.nl.linux.org/~riel/zone-alloc.html) and think
up a good allocator for 2.3 and beyond.
The discussion should probably be held on the Linux-MM
mailing list. Linux-MM@kvack.org can be subscribed to
by sending a message to majordomo@kvack.org...
regards,
Rik -- Open Source: you deserve to be in control of your data.
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