Re: Re: Wait State 00050064

"Ivan Warren [email protected] [H390-MVS]" <[email protected]>
Newsgroups gmane.comp.emulators.hercules390.mvs
Message-ID <[email protected]>
On 9/22/2019 12:47 AM, 'Dave Wade' [email protected] [H390-MVS] wrote:
>> In my Hercules 4 configuration I had LPARNUM 01 instead of LPARNUM BASIC..
>>
>> Why did this matter?
>>
>> I did a lot of tracing, etc and found that NIP (Nucleus Initialization
>> Program) was
>> getting an 80A abend by asking for a huge amount of memory. What was going
>> on is that bytes 6-7 in the result of an STIDP instruction was being used
> to
>> calculate the amount of memory get. I have no idea what MVS is try to
>> accomplish here--this has to be an MVS bug.
>>
S/370 STIDP also includes the size of the MCEL (Machine Check Extended 
Logout) area. The normal process during any IPL of any OS is to allocate 
storage for this. With a Format 1 STDIP, this goes haywire.

--Ivan
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