Found it

Part of the problem was in TEST I was doing a list   the  SDWAEC2 had 0704 
while the Linkage stack 070C 

But the reason for that was bit 12 is on for 8 byte PSW and off as in the 
linkage stack for 16 byte PSW 

   

-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of 
Peter Relson
Sent: Saturday, January 13, 2024 10:41 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Traversing The Linkage Stack

>From one of the posts, it wasn't clear if the OP realized that the entry 
>descriptor is at the end of the entry, not at the beginning.

If you're not traversing stack sections, complications related to header and 
trailer don't tend to come into play.

Consider posting the entire linkage stack from start through time of error, 
along with the data from the SDWA which the OP indicates is not in the linkage 
stack. Unlike AI, RTM does not make stuff up. If there is a PSW, RTM found it 
somewhere, either in an RB/XSB or the linkage stack. If there is a problem 
marking the PSW as "from a linkage stack entry", that would be good to know. 
And for that, the information I mentioned above (plus all the data from the 
RBs/XSBs) would be needed for diagnosis.

Peter Relson
z/OS Core Technology Design

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