LENGTH OF SWA BLOCK (NOT
* INCLUDING SWA PREFIX) */
* 2 SWCHNPTR PTR(31);/* CHAIN POINTER OR ZERO */
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
--
For
ded up to the next 4K or whatever) I a bit
> perplexed as to why this (whatever their methods are) appears to be
> something not readily available to me.
See SYS1.MODGEN(IHAPDS)
Jim Mulder z/OS System Test IBM
e several
flag
> bits defined and other bits to the right that may be "unpredicatable"
under
> various circumstances.
>
> This all assumes that the data at A8-AF is copied exactly to the trace
> record, and that the trace record as formatted by IPCS shows exactly
those
> sa
TI_FCModFacility EQU X'02' Bit 134
FaclByte17DSB Bits 136-143
* Bit definitions:
FACL_SharedTLBEQU X'80' Bit 136
FACL_TODClockEpochFacility EQU X'10' Bit 139
FACL_StoreCpuCtrMultiple EQU X'02' Bit 142
FACL_ScaledCpuTimer EQU X'01' Bit 143
Jim Mulder z/OS S
3 machine with APAR OA46291
installed, in which case backing storage may not been freed
during a subsequent FREEMAIN, so it remains backed for a subsequent
GETMAIN.
For requests where RSM is not involved (when the request
is satisfied from free storage represented by a DFE or FQE),
the backing is unchan
A subpools
253 and 254) were also imbedded in the storage that they described.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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loaded when ARCHLVL=1
(ESA/390 mode, which z/OS does not support after z/OS 1.5)
IEANUC2y contains the additional modules loaded when ARCHLVL=2
(zArchitecture mode, which has been the only choice since z/OS
1.6).
None of these are V=R. There has been no V=R nucleus since the
g in RSM
to reduce the number of Bind Breaks that RSM needs to do
when multiple jobs are doing DSPSERV DELETE concurrently.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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> I think the first CSECT in the Load Module (and the Load Module
> itself) is automatically Page Aligned.
That is definitely incorrect, at least for load modules in
a PDS.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsi
entation is available at
http://publibz.boulder.ibm.com/zoslib/pdf/OA47689.pdf
Note that if you do not specify MAXARCH in IEFOPZxx,
then MAXARCH defaults to the architecture level of the machine, so
the MAXARCH displayed by DISPLAY IEFOPZ,STATUS
will be the architec
r Offline.
And since these event code are not documented in the manual, they
are not intended as Programming Interfaces.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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COMPONENT LEVEL/SU:
R7A0 PSY UA78514 UP15/08/19 P F508
For lower releases, you may want to avoid issuing that
command in a logical partition where you have a large amount
of real storage but only one general purpose CPU online.
Jim Mulde
INE-RECONFIGURABLE
88064M-103424M
PENDING OFFLINE
NONE
0M IN OFFLINE STORAGE ELEMENT(S)
0M UNASSIGNED STORAGE
STORAGE INCREMENT SIZE IS 512M
Jim Mu
,0(rI,rBase) may avoid some Address Generation Interlock
effects (although various machines have various AGI bypasses for various
instructions). And it may just transfer some of the AGI effect from the
LG down to the AGS
imit, not a processor architecture limit.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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> One question I would liked answered by the experts is why now with
> 64-bit storage one would choose to use a hiperspace (or dataspace) over
> just using storage above the bar?
TYPE=CACHE hiperspaces continue to provide a function that z/OS has
not provided with 64-bit memory objects.
the original point. But when the price of real memory
declined to the point where the ESA/390 31-bit real addressing
architecture limit became a practical constraint, expanded storage
provided a way to have more than 2GB of processor memory
(real + expanded) in a logical partition.
Jim Mulder
For z/VM, some terminology which may concern you is
"Virtual Architecture Level". And if you could be running under a Linux
which
is a z/VM guest, you may need to be concerned about "Live Guest
Relocati
would recommend using FaclLongDisplacementHP
instead of FaclLongDisplacement. The long displacement facility
was eventually retrofitted (via a millicode implementation)
to z800/z900 machines.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
-
your system going into a wait state.
>
> Both should kill your system.
That will not drive AutoIPL. To drive AutoIPL, the wait state
must be loaded using the WTO macro with the WSPARM keyword specified.
Jim Mulder z/OS System Test IBM
ANUC01 BLWWSATC
VER 0020 0013
REP 0020 0014
VER 0078
REP 0078 3CCC
/*
//
Then reIPL to activate the changed WSAT.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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reemain being done by TCB 8BA3E8 on CPU 0).
When the local lock is not available for a type 1 SVC, the SVC FLIH
backs up the PSW address in the RB/XSB so that the SVC will be reissued
when the local lock is available.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
ly larger than a region size could ever be, since
above and below 16M are separate regions. The maximum region
above 16M is constrained by 2048M - 16M - (ENUC + ELPA + ECSA + ESQA).
Jim Mulder z/OS System Test IBM Corp. Poughkee
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
> >... Most shops any more use the APFTAB value which indicates that a
> >data set's APF authorization is based on the APF table when a module is
> >accessed via the link list or a STEPLIB.
> >
> Does
te unauthorized by including it in STEPLIB. This ought to
> be a tolerable behavioral change.)
How useful would that be? If the jobstep is running APF
authorized, it cannot load anything from unauthorized libraries.
Jim Mulder z/OS System Test IBM Corp.
OM on IARV64
is for diagnostic purposes only. There is no automatic freeing of
common storage when something terminates.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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d not
recommend making any assumptions in your code.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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changes a few years later
before
MVS became interested in accommodating C and Unix.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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ber this who could point me in the
> right direction?
IEBCOPY - APAR OA40379
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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led before RTM (and thus before SLIP). And that
is one of the reasons why I despise ESPIE and recommend against
using it.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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STEM SSI IS NOT ENABLED FOR THE SETSSI COMMAND
>
>
> Does anyone know how we can properly activate this subsystem, without an
IPL
If you are using the most current release (z/OS 2.2), you can use
SETSSI DELETE,SUBNAME=SSI,FORCE
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie,
ure. LOCALSYSAREA is just a
z/OS construct, and its size/boundaries are set by z/OS.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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namic Address Translation, either at SIE Guest 1 (in an LPAR)
or at Guest 2 (under VM). So you certainly will not be able to run any
operating system that uses ESA/390 virtual addressing, even under VM.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
---
pecially in stand-alone
dump, and I did not want us to have to do that in multiple releases
via PTFs, so I did in in z/OS 1.12, long before there was a plan as
to when a z/Architecture-only machine would be built.
Jim Mulder z/OS Sys
which LPSW expands to a 128-bit z/Architecture-format PSW.
The LPSWE operand is a 128-bit z/Achitecture-format PSW.
This has been documented in z/Architecture Principles of Operation
for 15 years.
Jim Mulder z/OS System Test IBM Corp. Pough
@L3A
* DCL ASVTREUS BIT(*) BASED(ASVTREUA) /* ONE BIT FOR EVERY ENTRY @L3A*/
Note that these things are not designated as Programming Interfaces.
But you were asking about how to tell from a dump.
Jim Mulder z/OS System Test IBM Corp.
he situation of having separate catalogs and
SMS-plexes within the same sysplex (and thus allowing more than one
SMS-managed data set with the same name in the same sysplex) was not
a design consideration for that project.
Jim Mulder
MVS/ESA did map addresses 0-4095 in
data spaces on those processors.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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members which IBM provides. Typically, these
are found on the sysres volume in a data set named SYS1.IBM.PARMLIB
(or some similar name chosen by the systems programmer).
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
--
one dump output data sets.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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> The requirement for z/OS 2.1 is disappointing. We haven't been on
> 1.13 for all that long, and I don't know that we have an upgrade due
> any time soon... :-(
Support for z/OS 1.13 ends soon (Sept. 30, 2016).
Jim Mulder z/OS System Test IBM Corp. Poughkee
lder than
z/OS 2.2, you should specify a DELAY=nn value in order to reduce the
danger. z/OS 2.2 implements a default/minimum of DELAY=1. On older
releases, the default/minimum was DELAY=0.
Jim Mulder z/OS System Test IBM Corp. Po
,
with the restrictions that there is no concept of RMODE(64) yet,
so you need to get the code loaded above the bar some other way,
and very few system services document that they support being invoked
from a program which resides above the bar. Some might work
anyway. Others might not.
This may be of interest to some of you.
https://www.ibm.com/developerworks/community/forums/html/topic?id=5cf34211-c8e6-4747-a8c2-f8ff7379150b
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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ole
communication, and for disabled console WTORs, it enables
only for priority responses. So if z/OS running under VM
uses SCLP for a disabled console WTOR, and you try to reply
to it with VMSG, it will be ignored. You have to use PVMSG
to respond to z/OS disabled console WTORs.
Jim
CSVFETCH exit would no nothing about this.
The Rexx compiler also has an option to generate OBJs, which
you subsequently bind into load modules or program objects that would
be invoked via CSV services.
Jim Mulder z/OS System Test IBM Corp. Poughkee
ew years since I have seen a dump of
an MVS hang due to the SE being unavailable.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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t it into an IO buffer which is prefixed by a DRPX (Dump Record
PrefiX). But the I/O buffer ASID and address are not how the data
is represented in the dump.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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determine the current position within the current
trace buffer for each CPU. The high order part of the real address in
CR12
is used only by the machine in order to determine where to put a trace
entry.
Jim Mulder
--
F
d described in MVS Data Areas
Volume 4, and are not a Programming Interface.
And of course, I am interested in the reason why you
want to work with the raw data.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
ng? Keep in mind that
sampling which is software-based and driven by external interrupts
will charge the time spent in the SVC interrupt handler to the
beginning of the SVC routine, since the SVC interrupt handler is
disabled for exter
ng the
DFSMSDSS IPLable DVD is not documented, and neither is the method
for putting the volume dump images onto DVDs in a format that
standalone DFSMSDSS can restore.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
---
he DVD to keep in the vault at the DR site in case it's needed.
z/OS does not support being IPLed from a DVD.
The stand alone restore utility of DFSMSDSS does support being IPLed
from DVD, and restoring from DVD.
Jim Mulder z/OS System Test I
ranch prediction tries to
mitigate some of the effects of nonsequential execution.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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otifies z/OS that a configuration change event has
occurred. z/OS then does an STSI,
and updates whatever needs to be updated. ENF event code 20 is signalled
to inform other
components and products.
Jim Mulder z/OS System Test IBM Corp. Pough
chine notifies z/OS is unpublished
architecture (so not in Priciples of Operation). You might be
able to find information about it by examining Linux source code,
if Linux pays attention to that notification.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
> On Tue, May 24, 2016 at 9:4
> Thanks will there be any zOS message which I can capture in SYSLOG after
> the processor upgrade? I was looking for a related message to ENF 20 but
> couldn't find in the manual.
IWM063I WLM POLICY WAS REFRESHED DUE TO A PROCESSOR SPEED CHANGE
Jim Mulder z/OS System Test
uns in
> a 64 bits machine (z890 that is actually available).
I don't see an IEAVNP8B in the NIP rim list for OS/390 1.3
(or any other release). So unless you have an IEAVNP8B
in SYS1.NUCLEUS that was supplied by some other vendor, and a zap
to IEADRIMS to invoke it, I don't see how you woul
by the code underlying the ISGLOBT. And why
> is the PC number good for several obtain and release cycles and then
> suddenly fails?
Look at the system trace in the dump of your 0D6 abend.
Which module is issuing the failing PC?
What is the failing PC number?
What PC number was used for the succes
t how to find the TEA in this case.
How about the TRNE and BEA fields in that same XSB?
Jim Mulder z/OS Diagnosis, Design, Development, Test, etc. IBM Corp.
Poughkeepsie, NY
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ice.
MIH monitoring starts during Master Scheduler Initialization.
MIH is not active during NIP.
Jim Mulder z/OS Diagnosis, Design, Development, Test, etc. IBM Corp.
Poughkeepsie, NY
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-11 abend.
Since the dumping program subsequently dumped that page, the page
must have been GETMAINed after the 0C4-11 abend, presumably by
the exception handling/dumping processing.
Jim Mulder z/OS Diagnosis, Design, Development, Test, etc. IBM Corp.
Poughke
> Thanks. What I do not yet understand: The TRNE address is 231A7800,
> where as the address in R15 231A7BB8. Why the difference?
TRNE is a copy of Translation-Exception Identification, which is
defined in
Principles Of Operation.
Jim Mulder z/OS Diagnosis, Design, Development, Tes
The most likely explanation is that the target address of the BASSM
was not GETMAINed storage at the time of the abend (causing the
0C4-11 abend), but was subsequently GETMAINed and used before the dump
was initiated or as part of the dump processing.
Jim Mulder z/OS Diagnosis, Design, Developmen
E gets control before slip. So your slip trap probably
> won't match at all.
ESPIE for unauthorized programs (like LE) supports interrupt codes
1-15 (decimal), which does not include 17 (x'11') page fault. So
SLIP SET,A=SVCD,C=0C4,RE=11,ML=1,MODE=PP,J=jobname,END
should be able take a dump of
established for interrupt code 4 will also get control
for any of those access exceptions when they cannot be resolved.
Jim Mulder z/OS Diagnosis, Design, Development, Test, etc. IBM Corp.
Poughkeepsie, NY
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-8 abend
to get into an RTM1 environment (for branch entry WTO) or RTM2
environment (for SVC entry WTO). This allowed us to avoid the
development cost of creating a new SLIP environment. We retry
from the 06F-8 abend without recording to logrec, so the only place
it is easily visible is in system
Under IPCS, what does VERBX IEAVTSFS display for Partial Dump Reason
Codes?
And what does CBF RTCT+9C? STR(SDUMP) VIEW(FLAGS) show for
SDATA options?
Jim Mulder z/OS Diagnosis, Design, Development, Test, etc. IBM Corp.
Poughkeepsie, NY
> V2R2 only, or ... ?
APPLICABLE COMPONENT LEVEL/SU:
R7A0 PSY UA82016 UP16/06/29 P F606
R790 PSY UA82017 UP16/06/29 P F606
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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z/Architecture Reference Summary, the low order bit of the PC
return address field in the trace entry indicates that the PC
was issued in problem state.
Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY
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, though it would
> doubtless be a good idea.
>
> Or... Have I misunderstood: Is the problem not with the 2.1 MIGLIB at
> all? Is there perhaps maintenance needed to z/OS 2.2 IPCS itself?
You need to install PTF UA90783 (for APAR OA43495) on a z/OS 2.1
system, and then use that MIG
ng the
dump.
If they specify the SDATA NODEFAULTS option, that would cause
the options added by IEACMD00 to be ignored.
Jim Mulder z/OS Diagnosis, Design, Development, Test, etc. IBM Corp.
Poughkeepsie, NY
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nd any such documentation. There is probably room
for some documentation improvements in that area.
Jim Mulder z/OS Diagnosis, Design, Development, Test, etc. IBM Corp.
Poughkeepsie, NY
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in?
Is it an APF-authorized job step?
What exactly are the ECBs on which you want to WAIT? How did you
get the addresses of those ECBs?
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> wrote on
parameters.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> wrote on
02/03/2017 09:06:16 PM:
> From: Jesse 1 Robinson <jesse1.robin...@sce.com>
> To: IBM-MAIN@LISTSERV.UA.EDU
> Date
> Is this still, as Ed recalls, part of a separately-priced SAMe feature?
I asked Wayne Rhoten. His recollection is that SAMe GAed as a product
around 1978,
and was integrated in the early 1980s.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie
, there are two zIIP threads online to
z/OS, so one more
to SIGP to for things that z/OS has to broadcast to all online threads.
But I would not
expect that to make much difference.
The system trace in a dump taken while things are slow might provide
some clues.
Jim Mulder z/OS Diagnosis, Design
running a job, D A,ALL
will show two entries for the same ASID (one for each CSCB).
For BPXAS address spaces, both will be marked O (dubbed).
But OAS will count that address space only once.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
IBM Mainframe Discuss
When OMVS was first implemented in SP4.3.0 (around 1993), I have a vague
recollection that OMVS may have used the APPC Scheduler - ASCH) to manage
its initiators, to reduce implementation cost in the first release.
However,
that is no longer the case.
Jim Mulder z/OS Diagnosis, Design
n z/OS as a z/VM guest on zPDT, then AUTOIPL may work.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
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However, keep in mind that this is a statement about the CPU
architecture, and not
the I/O architecture. For example, zPDT does not support MIDAWs, which
were
introduced on the z9 machines.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
Steve M Bohn
> I'm trying to find data for PGSER FIX
>
> would VSMLIST. For free space give me address of storage that have
> been allocated but paged out
No, VSM (and hence VSMLIST) knows nothing about if or
where any virtual storage is backed.
Jim Mulder z/OS Diagnosis, Design, Developmen
vicinity, machine model, system
trace
entry for the PGM 004
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
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> Jim Mulder said the Current work unit is in the Web
I said nothing about what is in the WEB. This is exactly what I said:
"LCCACWEB (which is classified as not a programming interface)
contains the address of the currently dispatched WEB."
> I looked at that and saw
ace for memterm?
Since memterm does not access the storage of the address
being terminated, there is no connection between IEFUSI and memterm.
There is no requirement for any available storage in the address
space being memtermed. Task termination, yes.
Memory termination, no.
Jim Mulder z/
From some internal discussion after this issue was raised today,
our intention is that LE will move the CEEDUMP modules to SCEELPA
in the next release of z/OS.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
>
> So, when will CEE.SCEELPA be z/OS st
xhaustion. (And I say "our intention"
because we do sometimes find cases where we did not do what we
intended).
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
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REUS but not RENT. It should not occur for
IEECV6CX. So the possibilities are:
1. Your user somehow got a non-RENT IEECV6CX on the system, and that
is what needs to be fixed.
2. Something else is screwed up, in which case a dump from
SLIP SET,A=SVCD,C=A06,RE=4,ML=1,ID=DA06,END
would be needed
, and
RTM2 is detaching a waiting subtask, under which LE's ESTAE took this
dump.
Or an SRB did the POST that got the 202 abend, and SRB-to-task
percolation is ABTERMing
this waiting task.
Jim Mulder z/OS Diagnosis, Design, Development, Test, etc. IBM Corp.
Poughkeepsie, NY
IBM Mainframe
nd the work unit which is doing the POST.
Jim Mulder z/OS Diagnosis, Design, Development, Test, etc. IBM Corp.
Poughkeepsie, NY
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CE
filtering to reduce the number of formatted lines.
The new EXCLUDE(BEFOREALL AFTERALL) introduced for z/OS 2.2
in APAR OA49814 can be very useful for this purpose.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
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The OA50565 fix changed the TSO/E environment service to turn on PSCBJCL
when running in an APF authorized jobstep (i.e. when JCSBAUTH is on).
IDCAMS is linked in SYS1.LINKLIB with AC(1), so an EXEC PGM=IDCAMS jobstep
is APF authorized.
Jim Mulder z/OS Diagnosis, Design, Development, Test
). There is no mechanism in TSO/E to serialize
against deletion
of control blocks created by IKJTSOEV, so it is not safe to delete them.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
> Jim-
> Thanks, so we need to apply the PTF. I will changes my code to check for
>
to submit a requirement through the usual mechanism, or engage
via the support process.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
> > The OA50565 fix changed the TSO/E environment service to turn on
PSCBJCL
> > when running in an APF authori
A 028-04000200 would not be due to either of those things. A more
likely cause
would be a page table overlay. The first step for doing any diagnosis
would be
SLIP MOD,ID=X028,DISABLE
and then reproduce the problem. Open a PMR and send the dump to IBM.
Jim Mulder z/OS Diagnosis
anages double frames (used for access lists,
and before z/Architecture, for segment tables) and quadframes
(used for segment tables and region tables). There are no
external interfaces for double frames or quadframes.
There is IARV64 GETSTOR with TYPE=FIXED and PAGEFRAMESIZE=1M.
Jim Mulder z/OS Diagnos
X'01' Obsolete. Meant CPU-measurement
*0037
facility supported. Use *00371000
FlceCpuMeasurementCounter & *00372000
FlceCpuMeasurementSampling 00373000
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Cor
IHAPSAE is in z/OS V2R2 MVS Data Areas Volume 2 .
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
> Ah. I was looking in MVS Data Areas. Is it in there somewhere? I did not
> find it.
>
> I suppose I could have looked at STFE.
> > CSST
ge online to the partition. LPAR assigns
real storage, and now that real storage is unavailable to
be assigned to other partitions.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp.
Poughkeepsie NY
> >I discussed this further with Jim Mulder. The z12, where I recently
>>n
> 1. As far as I know z/OS 2.2 will not run on z9 machine - is it true?
>
> 2. What message one can expect when trying to IPL the z/OS 2.2 on the
z9?
Wait state code 07B
A required processor facility is not available. The wait state reason code
identifies the missing facility.
Jim
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