Subject: Re: random core dumps when compiling...
To: Charles M. Hannum <>
From: Michael L. VanLoon -- <>
List: current-users
Date: 05/15/1995 09:57:46
>   I then removed the option CYRIX_CACHE_REALLY_WORKS form my kernel, so that 
>   Cyrix cache now works in a hold flush mode, and build the large GENERIC I w
>   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.

  Michael L. VanLoon                       
       --<  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...