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FromNigel Metheringham <>
SubjectRe: Why no Cyrix patch in 2.1.20?
DateWed, 08 Jan 1997 09:51:23 +0000
byron@morticia.PHYSICS.ColoState.EDU said:
} Could you please apply the appropriate parts of the latest cyrix patch
} to the next kernel?
} The VSPM options are known to give problems, but everything else is
} very  useful, and could save a few cyrix users some concerns about
} heat. 
The patch you enclosed was for 2.1.7 and will not work on a 2.0.x series 
kernel.  There is a reworked patch in the patches on
	http://www.ecsnet.com/

However there is a problem with some Cyrix processors which is very hard 
to pin down, but is related to the 6x86 enhanced features.  This means it 
is only *safe* to use the extra CPU detection code and all other features 
need to be disabled, unless you are *sure* they work on your machine.

Mike had an idea for what was causing this problem, but no fix to my 
knowledge.

[However the CPU detection does switch suspend_on_halt on as a side 
effect, so the melting CPU problem is fixed.]

I think I'd still leave this out of the main kernel development line for 
2.0.x.  [if you have a Cyrix aware BIOS it should have set suspend_on_halt]


	Nigel.
-- 
[ Nigel.Metheringham@theplanet.net   - Unix Applications Engineer ]
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