I am bit confused here Shmuel. The OP stated in the first line that this was a SOC4 pic 4. So why the discussion on all the other program interrupt codes (pic) that can produce a SOC4? Lennie
-----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Seymour J Metz Sent: 27 January 2025 11:34 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Explanation of TCBPFK To clarify, an S0C4 can have any of the interrupt codes 4, 10, 11, 2B, 38, 39, 3A, 3B, and only 4 can relate to the protection key. Does anybody have any statistics on the relative frequencies of S0C4 IC 4 for key mismatch, fetch protect, low storage protect, page protect and segment protect? -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Seymour J Metz <sme...@gmu.edu> Sent: Sunday, January 26, 2025 10:07 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Explanation of TCBPFK External Message: Use Caution Way back in the dawn of history, IBM did something that appalled me, and you are the latest victim. While for other S0Cx ABENDs the last digit identifies the program interrupt code, for S0C4 there are multiple possible interrupt code, and 0004 is not the most common. Most likely you got a 0010 or 0011, or the Z equivalent. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Joseph Reichman <000005812645a43c-dmarc-requ...@listserv.ua.edu> Sent: Sunday, January 26, 2025 8:57 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Explanation of TCBPFK External Message: Use Caution Hi I am trying to hunt down a S0C4 pic 4 So I did a MODESET MODE=SUP,KEY=ZERO I ended up with the ABEND I stated My first question what exactly is TCBPFK used in my situation with executing the modeset The value of TCBPFK was X’80’ Which the documentation says is user key My guess the modeset changed the value of the RBOPSW is there any way besides actually changing storage value of TCBPFK To change TCB key or I guess TCBPFK to zero Thanks ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
