Re: 0-order allocation failed in 2.4.10-pre8
Jens Axboe (axboe@suse.de)
Sun, 16 Sep 2001 10:03:25 +0200
On Sun, Sep 16 2001, Daniel Phillips wrote:
> > Use the
> >
> > *.kernel.org/pub/linux/kernel/people/axboe/patches/2.4.9/block-highmem-all
> >
> > patch and you can use highmem without having to worry about failed
> > 0-order bounce pages allocations.
>
> Right, by using 64 bit DMA instead of bounce buffers. But aren't there cases
> where the 64 bit capable hardware isn't there but somebody still wants to use
> highmem?
Yes of course. The common case is not 64-bit dma here though, it's just
being able to DMA to highmem pages (just full 32-bit dma instead of low
memory dma). And that should cover most systems out there.
--
Jens Axboe
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