Subject: Re: random core dumps when compiling...
To: Charles M. Hannum <mycroft@ai.mit.edu>
From: Michael L. VanLoon -- HeadCandy.com <michaelv@HeadCandy.com>
List: current-users
Date: 05/15/1995 09:57:46
> I then removed the option CYRIX_CACHE_REALLY_WORKS form my kernel, so that
the
> Cyrix cache now works in a hold flush mode, and build the large GENERIC I w
as
> trying. No problems after that. worked like a dream.
>That doesn't surprise me at all. There's a good reason that option is
>not documented anywhere.
To elaborate: that option is intended for people who have motherboards
(1) designed *specifically* for DLC-type chips, and (2) which have
*correct* and *complete* bus-mastering and cache-coherency support in
the hardware. If you don't have these, chances are your cache doesn't
"REALLY_WORK", and you shouldn't have that enabled.
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Michael L. VanLoon michaelv@HeadCandy.com
--< Free your mind and your machine -- NetBSD free un*x >--
NetBSD working ports: 386+PC, Mac, Amiga, HP300, Sun3, Sun4, PC532,
DEC pmax (MIPS R2k/3k), DEC/AXP (Alpha)
NetBSD ports in progress: VAX and others...
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