I would??TPROT first and only if cc 3 before issuing VSMLOC to save a few cycles.
Raymond Wong -----Original Message----- From: Wayne Driscoll <[EMAIL PROTECTED]> To: [email protected] Sent: Thu, 13 Dec 2007 11:53 am Subject: Re: TPROT condition code Yes, getmained storage can be paged out, unless it is in a page fixed subpool, or has been page fixed by the application. As for TPROT, it doesn't really help to determine if a page is valid, just if it is paged in. A cc=3 could be that a page fault will occur OR the page is invalid, so you still need to deal with a possible S0C4. If you are attempting to determine if a piece of storage is valid, use VSMLOC. Wayne Driscoll Product Developer JME Software LLC NOTE: All opinions are strictly my own. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Ngafei Huang Sent: Thursday, December 13, 2007 11:42 AM To: [email protected] Subject: Re: TPROT condition code Getmained storage can be paged out and?TPROT can get cc 3 because of it.? -----Original Message----- From: Michael Poil <[EMAIL PROTECTED]> To: [email protected] Sent: Thu, 13 Dec 2007 11:26 am Subject: Re: TPROT condition code > Can happen when the page has been paged out or?the page is not accessible or simply means no such page. > Not due to a "normal" page fault. This is fixed up by z/OS under the covers after it gets the program check 11. Referencing an invalid page in the Address Space (i..e not getmained) will give you a S0C4. ------------------------------------------------------------------------ ------------------------------------------ Mike Poil Java z/OS Level 3 Service IBM United Kingdom Limited, Hursley Park, Winchester SO21 2JN Internal: 246824 External: +44 (0)1962 816824 Java debugging: http://www.ibm.com/developerworks/java/jdk/diagnosis/ ------------------------------------------------------------------------ ------------------------------------------ Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ________________________________________________________________________ More new features than ever. Check out the new AOL Mail ! - http://webmail.aol.com ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ________________________________________________________________________ More new features than ever. Check out the new AOL Mail ! - http://webmail.aol.com ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
