yes, i have a list and DO NOT is on it.  :-)  You guys have made that perfectly 
clear.

In my mind a "magic" SVC or any flipping of that bit is lazy programming.  In 
my mind I cannot think of any use for such a thing.

I apologize.  I read your last sentence many times, and it is a complex one.  
Could you explain a bit more?

I'm just asking to learn.  If I give an example, maybe you can tell me if I am 
off base.  In my mind I was thinking that an SVC may do something authorize, 
maybe a RACF check.  But it would be called only by an unauthorized assembler 
program.  

________________________________________
From: IBM Mainframe Discussion List [ibm-m...@bama.ua.edu] On Behalf Of Peter 
Relson [rel...@us.ibm.com]
Sent: 23 December 2010 16:00
To: IBM-MAIN@bama.ua.edu
Subject: Re: Authorized Rexx Assembler Function

>Call an SVC that flips the JSCBAUTH bit back on.

DO NOT DO THIS. In the general case there is no way to do this without
introducing system integrity problems.

And also do not use an SVC to return control to an unauthorized caller in
an authorized state.

Peter Relson
z/OS Core Technology Design

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