> -----Original Message-----
> From: The IBM z/VM Operating System 
> [mailto:[EMAIL PROTECTED] On Behalf Of Mike Hammock
> Sent: Friday, July 06, 2007 12:51 PM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Re: OS/390 as zVM 5.2 Guest on z9 ??
> 
> 
> Well, it turns out that there are some VERY strange things floating
> around...   I'm not ready to discuss some of what I've found 
> yet, but let's
> just say it is "interesting"...   and I have some more 
> testing to do....
> 
> Mike

Hum, you're message made me think of something. I wonder when OS/390 2.9
came out. Was it before the zSeries? I bet so. That probably means that
the code which causes a hardware check when OS/390 2.10 or z/OS are
IPL'ed on an IFL engine is not in OS/390 2.9. Now I'm curious if IBM put
something into the microcode on the zSeries and above to force an error
with non-IFL aware versions of OS/390 that otherwise might run on an
IFL. <hum, as Artie Johnson would say: "Verrrryyyy Interesting!"

--
John McKown
Senior Systems Programmer
HealthMarkets
Keeping the Promise of Affordable Coverage
Administrative Services Group
Information Technology

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