Re: fork: out of memory

Rik van Riel (
Thu, 27 Nov 1997 14:35:31 +0100 (MET)

On Thu, 27 Nov 1997, Rik van Riel wrote:

> > Memory is getting so inexpensive in some environments, wouldn't it make
> > sense to have an option to reserve DMA-able memory at init time? With 16
> > megs going for $60, it is worth setting aside 4megs or 8 megs which would
> > have to be specially requested.
> 128 k would be enough, the largest DMA buffer allocated by devices
> is 64k in size (soundcard) and ftape uses 3 32k area's. the scsi

On second thought, it doesn't need to be completely free... If
we can also use it for cache/buffer memory... Kicking that out
when we can't find a 64kB area for DMA memory might be bad for
performance (temporarily), but since it is good for stability,
it is a Good Thing (any system outperforms a crashed system :)

in search of a Better Thing (tm),


Send Linux memory-management wishes to me: I'm currently looking
for something to hack...