Ed,

Thanks, I think my brain has too many bits and bytes left over from long ago.  
So they tend to muddle each other.

Lizette




>
>  On 9/28/2010 9:06 AM, Lizette Koehler wrote:
>> I am z/OS V1.11
>>
>> Just wondering if there are any concerns left with setting SWA to SWA=ABOVE
>> in the JES2 Init deck?
>>
>> I remember something long ago and far away that if a program went after a
>> UCB it was a token with this setting and not the real UCB address.  Which
>> could lead to an S0C4.
>>
>> Of course my fuzzy brain cell may be mis-remembering.
>
>Definitely misremembering. UCBs are not in  SWA, they are in SQA/ESQA.
>
>Programs that don't use SWAREQ or equivalent coding to access/manipulate SWA 
>control blocks will not work with SWA=ABOVE. I can't imagine any modern ISV 
>product that doesn't do this properly. (But, just because I can't imagine it 
>doesn't mean it can't happen.) User code is an entirely different story...
>
>--

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