IBM Mainframe Discussion List <[email protected]> wrote on 11/08/2007 12:24:52 PM:
> On Thu, 8 Nov 2007 08:43:03 -0800 Edward Jaffe <[EMAIL PROTECTED]> > wrote: > > :>There is also a one-page "hole" at 7FFFF000. (Another handy > :>implementation choice made by your friendly-neighborhood z/OS developers!) > > Interesting. Is that hole documented? I don't know if it is documented, but it has been that way since the beginning of MVS/XA, and isn't going to change. > > Is there any 24 bit virtual address which is never assigned a slot? > No, there is no such 24 bit virtual address. With only 4,096 pages that are 24-bit addressable, I guess we didn't want to dedicate one of them for that purpose. 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
