I have written oodles of code that scan TIOTs, which almost always ran in "key eight", and I never got a S0C4 in that code, so I cannot believe that the TIOT is allocated in "key one" storage. I would believe "key zero."
Bill Fairchild ----- Original Message ----- From: "Greg Price" <greg.pr...@optushome.com.au> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Thursday, February 6, 2014 12:09:54 AM Subject: Re: Number of entries in the TIOT On 6/02/2014 6:02 AM, Ed Finnell wrote: > It is in LSQA, key zero if I remember correctly. Well, actually, key one, subpool 236 which is "private high" but not LSQA strictly speaking. That is, I claim it is possible to take a page fault when scanning the TIOT of a swapped in address space. (No page faults are possible when accessing GETMAINed subpool 255 storage of a swapped in address space.) The TIOT subpool is taken from JSCBSWSP. This is all from the Data Areas book. (Book hints at subpool 237, but for my TSO session it is 236.) BTW, re the XTIOT thread - the guts of an XTIOT entry is the same as a TIOT entry, but XTIOT entries are allocated in isolation as required. (ie. They are not in a contiguous block like the TIOT.) I expect someone already covered that. *Danger!* Possibly annoying free software plug follows! If you go to http://www.prycroft6.com.au/REVIEW/ and download the z/OS executables for REVIEW Release 44.2 and make it a runnable TSO command, then you can issue REV 'ACTIVE' to view your virtual storage. Issue L 21C%+C% to view your TIOT and you will see the 3rd screen line has: KEY 1 SUBPOOL 236 OWNED BY IEESB605 You should be able to get the same information from IPCS using a similar method, perhaps using the WHERE subcommand. Cheers, Greg --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ---------------------------------------------------------------------- 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
