On Wed, 3 Jun 2009 06:46:06 -0500, Chase, John <[email protected]> wrote:
>> -----Original Message----- >> From: IBM Mainframe Discussion List On Behalf Of Mark Jacobs >> >> Vince Getgood wrote: >> > . . . >> > >> > Above 2G : 0M (64-bit MEMLIMIT) >> > >> > Any thoughts / ideas / suggestions? >> >> Memlimit cannot be 0M for the 64Bbit JDK. > >Indeed, unlike REGION=0M which requests all available 24- and 31-bit >private storage, MEMLIMIT=0M requests that NO above-the-bar storage be >made available. To get behavior equivalent to REGION=0M you need to >specify MEMLIMIT=NOLIMIT. And if you don't specify an installation >default MEMLIMIT (SMFPRMxx, IEFUSI, etc.), you get NOTHING above the >bar. > Not entirely true. REGION=0M can get you 64-bit MEMLIMIT. It's all very confusing, but this APAR for z/OS 1.7 and z/OS 1.8 explains the behavior as of z/OS 1.9: APAR Identifier ...... OA14391 Last Changed ........ 06/07/20 DEFAULT MEMLIMIT FOR JOBS STARTED WITH REGION=0 THAT HAVE REGION SUBSEQUENTLY LIMITED BY IEFUSI. Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:[email protected] z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.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
