Subject: Re: 16mb limit on NetBSD 1.2 floppies?
To: Andrew Gillham <gillhaa@ghost.whirlpool.com>
From: Jason Thorpe <thorpej@nas.nasa.gov>
List: port-i386
Date: 07/02/1996 11:42:10
On Thu, 27 Jun 1996 14:21:01 -0400 (EDT)
Andrew Gillham <gillhaa@ghost.whirlpool.com> wrote:
> This _might_ eliminate scenarios where a custom kernel or kernel
> copy floppy has to be created.
> Perhaps adding a config option EXTMEM_LIMIT that makes sure
> the RAM size is <= EXTMEM_LIMIT.
> So in the config file:
> options EXTMEM_LIMIT=15360 # Limit to 16MB (ISA DMA issue)
>
> Maybe: (in sys/arch/i386/i386/machdep.c)
> ...
> #ifdef EXTMEM_LIMIT
> if (biosextmem > EXTMEM_LIMIT)
> biosextmem = EXTMEM_LIMIT;
> #endif /* EXTMEM_LIMIT */
>
> Just a thought.
This is a pretty good idea, actually. I'll talk to JT about it...
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Jason R. Thorpe thorpej@nas.nasa.gov
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