IBM Mainframe Discussion List <[email protected]> wrote on 01/14/2009 08:27:05 AM:
> Somewhere in this thread APAR OA27291 was mentioned. I just had a look > at it and I think the examples are in error. Here is an extract from > it: > > Consider the following examples to better understand VSM > behavior in z/OS 1.10 prior to this APAR compared to z/OS 1.9. > The following examples assume: > 1. Beginning with storage mapped as shown below. > 2. The getmain will be satisfied as needed from the FQE and/or > FBQE shown. > > DQE: Addr 0001A000 Size 1000 TCB: 009FF050 SP/K: 2/ 8 > FQE: Addr 0001AC00 Size C00 TCB: 009FF050 SP/K: 2/ 8 > FBQE: Addr 0001B000 Size 6000 > > The FQE cannot have a start address of 0001AC00 and a size of C00 if > it belongs to a DQE for X'1000' bytes. It is difficult so say what > is correct not knowing what GETMAIN/FREEMAIN request were done so > far. > > I assume (from a comment further down) that it was meant to show > a single GETMAIN for X'C00' bytes has been done. The corresponding > CBs look like this: > > DQE: Addr 0001A000 Size 1000 TCB: 009FF050 SP/K: 2/ 8 > FQE: Addr 0001A000 Size 400 TCB: 009FF050 SP/K: 2/ 8 > FBQE: Addr 0001B000 Size 6000 > > Not shown in the APAR text, the corresponding CBs under z/OS V1.10 > would look like this: > > DQE: Addr 0001A000 Size 1000 TCB: 009FF050 SP/K: 2/ 8 > FQE: Addr 0001AC00 Size 400 TCB: 009FF050 SP/K: 2/ 8 > FBQE: Addr 0001B000 Size 6000 > > The erroneous combiniation > > FQE: Addr 0001AC00 Size C00 TCB: 009FF050 SP/K: 2/ 8 > > has been copied down through all the samples. > > > Am I missing something here? Thanks for catching that typo - it will be corrected. Five of us reviewed that APAR text, but that is the difficulty with proofreading - sometimes the brain just thinks it sees what it expects to see. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- 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
