LISTSERV.UA.EDU
Subject: Re: EXTERNAL: Re: Why Would COPYSRVH Cause a 1M Page Demtion [Internal]
IBM takes formal customer requests into account. If you need it, then it is in
your best interest to submit a formal requirements and to ask others to endorse
it, whether that be a direct RFE or a SH
A.EDU
Subject: Re: EXTERNAL: Re: Why Would COPYSRVH Cause a 1M Page Demtion [Internal]
Jim,
Thank you for the explanation. It is WAD (working as designed).
Do I need to submit a formal requirement or is being on the list sufficient?
Thanks again.
Robert Crawford
Mainframe Management
United Ser
: Re: Why Would COPYSRVH Cause a 1M Page Demtion [Internal]
Here's what happened:
Apar: OA41307
Abstract: FORK FAILURE WHEN ADDRESS SPACE OWNS 1MEG PAGES Closed Date: 13/02/23
RSM support for FORK copies high virtual memory objects from the parent address
space to the child as pa
evelopment, Test IBM Corp.
Poughkeepsie NY
"IBM Mainframe Discussion List" wrote on
06/02/2021 04:49:14 PM:
> From: "Crawford, Robert C."
<01feadb2c2d2-dmarc-requ...@listserv.ua.edu>
> To: IBM-MAIN@LISTSERV.UA.EDU
> Date: 06/02/2021 10:35 PM
> Subje
21 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: EXTERNAL: Re: Why Would COPYSRVH Cause a 1M Page Demtion [Internal]
Please show the entire trace entry.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
"IBM Mainframe Discussion List" wrote on
06/01/2
erv.ua.edu>
> To: IBM-MAIN@LISTSERV.UA.EDU
> Date: 06/02/2021 12:06 PM
> Subject: Why Would COPYSRVH Cause a 1M Page Demtion [Internal]
> Sent by: "IBM Mainframe Discussion List"
>
> I've been trying to track down what's causing system 1M page
> demotions on our te
ssion List On Behalf Of
Attila Fogarasi
Sent: Tuesday, June 1, 2021 7:36 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: EXTERNAL: Re: Why Would COPYSRVH Cause a 1M Page Demtion [Internal]
IARV64 pagefix will cause demotion if the area is not 1MB on a 1MB boundary.
This was fixed in z/os 2.3 ... what re
IARV64 pagefix will cause demotion if the area is not 1MB on a 1MB
boundary. This was fixed in z/os 2.3 ... what release/ptf level are you
running?
On Wed, Jun 2, 2021 at 6:12 AM Crawford, Robert C. <
01feadb2c2d2-dmarc-requ...@listserv.ua.edu> wrote:
> I've been trying to track down what's
I've been trying to track down what's causing system 1M page demotions on our
test system. The component trace IBM gave me shows, in part:
SYS5 SGTDEM64 0063 12:44:53.270019 Demote 1M 64 bit page
FUNC1... COPYSRVH High Virtual Copy Service
JOBN1... ZUMCCMG1 ASID1..
