How about SLIP SET,COMP=0c4,ACTION=SVCD and do not specify any address
space etc
Colin
On Sat, 15 Jul 2023 at 01:17, Farley, Peter <
031df298a9da-dmarc-requ...@listserv.ua.edu> wrote:
> Hi All,
>
> I am trying to help the python ibmdb team help me solve an S0C4 abend
> issue with (we think
The SU/sec advertised for those models indicates it is correct to call a
504 cpu "slower" than a 701 cpu, even if that distinction is created at
a level above the physical hardware. If it is true that at the hardware
level the processor clock cycle is identical for all processors, then
Anyone remember "wait states" in the early IBM/clone 8088 PC's because of the
slower memory chips?
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Original Message
On Jul 15, 2023, 2:41 PM, Joel C. Ewing wrote:
> The SU/sec advertised for those models indicates it is correct to call a 504
>
Thanks for trying to help Jon, but “IBM” hasn’t *officially* looked at
anything. The python ibmdb team is an open source collective (perhaps
including some IBM employees, but I do not know that for sure) and is not
“official” IBM support at all. One of the ibmdb team has asked for an SVCDUMP
Follow-up: The python code that abends is already using try/except around the
calls to the fetch_both() function, and the “except” phrase is never executed
(I already have message outputs there, though not to /dev/console), so there is
no chance to output anything after the abend happens.
So
Thank you very much ... I have legacy code here which is from 1979 and
1982,
and the primary targets are VM/370 and MVS 3.8, but I'm very happy that
it runs
on current z/OS and current z/VM, too ... and it will sure run after
some minor corrections
also from "real" MODULEs and not only via LOAD
All processing units (PUs), whether CPs zIIPs, SAPs, ICFs or IFLs have the SAME
cycle time (speed). It's the CAPACITY settings which are different. For
example, in case of the z16 the 701 is 100% then the relative capacity of a 601
is approx 66% of the 701, 501 is approx 41% of the 701 and 401
At one time, many moons ago, IBM systems which used the employee number for the
userid, the world-wide 'uniqueness' was simple by prefixing the employee number
by the letters GB (Great Britain) or IBM's oountry code for countries it
operated in e.g. 866 for Great Britain.
Regards
Parwez
I believe "Storage-protection override" is the hardware facility
it is!
and VSE as well as z/OS set the bit in CR0 to activate it (all the time without
asking for any need). So Key 9 is the storage key everyone (regardless of key)
can modify as opposed to PSW-key zero which allows to modify
On Fri, 14 Jul 2023 at 20:54, Steve Thompson wrote:
[...]
> I wrote the SVC for PROLOG and was in the middle of testing when
> we were informed that CICS was going to use KEY9 and a system
> change (forgot the name of this) was being done for them. So I
> had to find another key.
I believe
As you discovered, S0C4 SLIPs are at the best of times a pain in the a$$. S0C4
is difficult because it has a real use which is to determine if a page has been
created (not just allocated). It requires multiple SLIP IGNORE which can be
obtained from IBM. Since you are working with IBM support,
A paging exception for an allocated page doesn't cause an S0C4, although a
reference to an unallocated page does. I would expect a lot more of the former
than the latter. Has anybody compiled metrics?
From: IBM Mainframe Discussion List on behalf of Jon
It's a bit more complicated. A TCB is eligible if is dispatchable and its
current RB has a 0 wait count.
From: IBM Mainframe Discussion List on behalf of Jon
Perryman
Sent: Saturday, July 15, 2023 12:41 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: A
What SLIP trap did you try setting? SLIP SET,C=0C4,A=SVCD,END will catch every
0C4 that occurs anywhere. That wouldn't be what I'd want for a SLIP trap (it's
too broad so will hit on things you don't want). But it would work. But only
once (default match limit for A=SVCD is one). Either there
Are you sure you don’t have a dump? LE is usually configured with
TERMTHDACT(UADUMP) which creates a transaction (SYSMDUMP). Look in the syslog.
Set the following environment variable to enable dumps by default.
export _CEE_RUNOPTS=FILETAG(AUTOCVT,AUTOTAG) TERMTHDACT(UADUMP) ABTERMENC(ABEND)
I wouldn't call myself a SLIP expert, but I do a lot of SLIPs during
software development.
Consider something like the private module parm of SLIP. You would use
something like P=TOROLABA.
Do you get registers when you get the S0C4?
If you do, find the one that contains the base address and use
I don't think TOROLABA is a module name. Complete guess on my part but Peter
is using zXplore which makes me think this is something to do with labs as in
TORO LAB A. Does python on z compile an actual executable or is it more akin to
a bytecode generator? The message implies something like
The SLIP I recommended was to capture the system trace which will not solve
your problem but would give you information about setting a slip to capture the
you need. S0C4 SVCDUMP is notoriously difficult to capture. Since the error
message contains the abend address, you don't need to use the
A good userid scheme should not identify who the userid belongs to or the
job function of the person. Several places I have worked had this
philosophy. All userids that belonged to a human began with the letter U
followed by 3 to 6 random characters and numbers.
On Thu, Jul 13, 2023 at 4:22 PM
While I might agree to that somewhat, it fails when you also use the
userid for other things, such as email, where the userid is 'public'.
But, uses of alias for public view can resolve that issue.
For instance, my email userid at 'vse2pdf.com' is not 'tony', it's
something else.
On Fri, Jul 7, 2023 at 5:35 PM allan winston wrote:
> I did a lot of work in this area 20 years ago.
> [snip]
>
> CICS is an entirely different ballgame. In the rare event that the VSAM
> files in your shop are still using LSR instead of RLS, then there are
> opportunities for performance
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