<snip>
Given the choice of using the SSAR instruction with a ALET of 1
And adding a access list entry via ALESERV which is the preferred method 
</snip>

I do not accept the conditions of contest. Neither is an acceptable method 
in general.

You might not have authorization to SSAR. And a target address space needs 
to be non-swappable in general.
Setting things up so that you have authorization to SSAR to a space can 
have system integrity consequences.
Further, if this is a reusable ASID, SSAR will not work in any case, you 
would need to use SSAIR.

The current secondary address space can always be accessed using ALET=1 in 
AR ASC mode.

Peter Relson
z/OS Core Technology Design


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