Interesting question, but the problem at hand is pure z/OS. Charles
-----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Seymour J Metz Sent: Tuesday, February 22, 2022 7:53 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: 2.5 Heads Up Do any of z/TPF, z/VM or z/VSE ever run in ESA mode? -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Charles Mills [charl...@mcn.org] Sent: Tuesday, February 22, 2022 10:26 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: 2.5 Heads Up Would using some "debug" type utility to store a non-zero value at address 4 be a partial circumvention? The pre-Z restart PSW is never used for anything now -- is that correct? Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Jim Mulder Sent: Monday, February 21, 2022 10:03 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: 2.5 Heads Up Location 4 means address 4 (i.e. offset 4 in the PSA). There was a latent bug from a prior release in the loop control code so that it was erroneously fetching from address 4, and behaving especially badly when the data at that location is x'00000000', which it is as of z/OS 2.5. In prior releases, it was x'000130E1' when in zArchitecture mode. ---------------------------------------------------------------------- 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
