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From: Jeffrey Wheat <jeff@tad.cetlink.net>
Message-Id: <199606281559.LAA05374@tad.cetlink.net>
Subject: Re: Cyrix Processors
To: costa@supra.pt (Eduardo Costa)
Date: Fri, 28 Jun 1996 11:59:46 -0400 (EDT)
Cc: freebsd-questions@freebsd.org
In-Reply-To: <31D3C960.46DD@supra.pt> from "Eduardo Costa" at Jun 28, 96 02:00:32 pm
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In reply to Eduardo Costa's email
> Hi,
> 
> I would like to know if anyone has already tested the "new" Cyrix P166+ 
> processor with FreeBSD, and if there are any known bugs, because we are 
> thinking of upgrading our server to a Cyrix P166+, 64 Mb memory, 2.1Gb 
> HD, and, before it, you would like to now something about the Cyrix...
> 
> Thanx,
> 
> Eduardo Costa (costa@supra.pt)

I have upgraded 2 of my servers to the P166+ (Cyrix) and FIC PA-2002 mainboards.
I have had some problems with this. For starters, a kernel compiled with only
the I586_CPU will not boot. When compiled with both the I486_CPU and I586_CPU
options, the kernel will boot, but the cpu is identified as a 486 cpu. Next, 
X will not start using xinit. I have to start X with xdm to get things to go.
WHen I was using an AMD DX4-100 CPU, X would start and the system would then
perform well. I have tried to compare the performance of the AMD and the Cyrix
chips, as well as with a P100 machine (all identical OS and periphials) and the
P100 outperforms both. I am also interested in other peoples results as I can
not justify upgrading anymore machines at this time. Lastly, the Cyrix machine
will randomly crash without any logs or warnings. This is unpredictable.

Regards,
Jeff
>