Thank you. You are correct in my error however I do remember that I what I used as a starting point was STCBLSDP and from memory it pointed to a X'8C' which is branch state entry.
Regardless bumping down by X'128' I got to a X'89' is a header the doc say that decrementing that would bring to a new linkage frame I specifically remember looking - 32 bytes from there and it was all zeros. I am using the 2012 Share PDF Titled "DUAL Address Space and Linkage-Stack Architecture." Peter I Am not asking you to reveal IBM secrets. But in the traversing the linkage stack can I still use that as a guide Thank you. -----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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN