Re: Need tool to zap core

2010-03-05 Thread Anne Lynn Wheeler
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.


re:
http://www.garlic.com/~lynn/2010e.htmL#32 Need tool to zap core
http://www.garlic.com/~lynn/2010e.htmL#34 Need tool to zap core
http://www.garlic.com/~lynn/2010e.htmL#38 Need tool to zap core

old email menioning SIE in vm/811 (811 was a code name for 370/xa
because architecture documents dated nov78) ... aka vmtool which was
(originally) only for internal mvs/xa development and was never going
to be released to customers. Also some discussion of difference
between SIE in 3081 and Trout (trout was codename for 3090)
http://www.garlic.com/~lynn/2006j.html#email810630
in this post
http://www.garlic.com/~lynn/2006j.html#27 virtual memory

above also mentions part of SIE poor performance on 3081 was that it had
to be paged in (from the 3310/piccolo by the service processor).

another old email mentioning SIE in 3090
http://www.garlic.com/~lynn/2003j.html#email831118
in this post
http://www.garlic.com/~lynn/200ej.html#42 Flash 10208

another reference to SIE on 3090 still being expensive instruction
http://www.garlic.com/~lynn/2007c.html#email860121
in this post
http://www.garlic.com/~lynn/2007c.html#49 SVC

the above discusses potentially disabling for i/o interrupts.  as it
mentions  I had done something similar a decade earlier ... would
dynamically change based on I/O interrupt rate crossing some
threshhold.

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Re: Need tool to zap core

2010-03-03 Thread Anne Lynn Wheeler
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.


re:
http://www.garlic.com/~lynn/2010e.html#10 Need tool to zap core
http://www.garlic.com/~lynn/2010e.html#11 Crazed idea: SDSF for z/Linux
http://www.garlic.com/~lynn/2010e.html#32 Need tool to zap core
http://www.garlic.com/~lynn/2010e.html#34 Need tool to zap core

... long after i have made presentation at baybunch on how to implement
dumprx ... more from the 3090 (3092) service processor group

Date: 23 December 1986, 10:38:21 EST
To: wheeler
 
Re: DUMPRX
 
Lynn, do you remember some notes or calls about putting DUMPRX into an
IBM product? Well .
 
From the last time I asked you for help you know I work in the
3090/3092 development/support group. We use DUMPRX exclusively for
looking at testfloor and field problems (VM and CP dumps). What I
pushed for back aways and what I am pushing for now is to include
DUMPRX as part of our released code for the 3092 Processor Controller.
 
I think the only things I need are your approval and the source for
RXDMPS.
 
I'm not sure if I want to go with or without XEDIT support since we do
not have the new XEDIT.
 
In any case, we (3090/3092 development) would assume full
responsibility for DUMPRX as we release it. Any changes/enhancements
would be communicated back to you.
 
If you have any questions or concerns please give me a call. I'll be
on vacation from 12/24 through 01/04.

... snip ...

RXDMPS was small stub code that dealt with failure image file.

misc. past posts mentioning dumprx
http://www.garlic.com/~lynn/submain.html#dumprx

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Re: Need tool to zap core

2010-03-02 Thread Anne Lynn Wheeler
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.


Anne  Lynn Wheeler l...@garlic.com writes:
 from long ago and far away (mentions dumprx, vm370 rel6 sepp, and the
 3090 service processor):

 Date: 31 October 1986, 16:32:58 EST
 To: wheeler
  
 Re: 3090/3092 Processor Controll and plea for help

re:
http://www.garlic.com/~lynn/2010e.html#email861031
in
http://www.garlic.com/~lynn/2010e.html#32 Need tool to zap core

funny thing about the wording in the above email was that neither the
person writing the email nor his immediate management seemed to have
realized that I had helped the manager that started the vm service
processor for 3090 (i.e.  turnover and/or transient nature of the
positions).

the issue with the 3081 service processor was that a whole bunch of
stuff had to be created from scratch (roll-your-own operation). recent
post mentioning 3081 service processor
http://www.garlic.com/~lynn/2010d.html#43 What was old is new again (water 
chilled)

the trade-off was having a more sophisticated environment for service
processor operation but having to invent/develop everything from scratch
... vis-a-vis having an off-the-shelf more sophisticated infrastructure
that might possibly have some things that weren't absolutely
required. 3090 service processor was getting to the point where it
wasn't practical to be inventing/developing everything from scratch.

one of the funnies in the 3081 service processor was that its disk drive
was 3310 FBA (versus the 3370 FBA used by vm for 3090) ... and the 3081
service processor needed to do paging operations. the 3081 didn't have
enough storage for all the microcode ... so there were some 3081
operations that involved the service processor doing microcode paging
from the 3310 FBA device.

the 3090 engineers would point out that some performance differences
between 3081 and 3090 ... was there weren't any critical performance
paths that required paging microcode.

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Re: Need tool to zap core

2010-03-01 Thread Peter Relson
You might check out SLIP's ACTION= REFBEFOR, ACTION=REFAFTER

Peter Relson
z/OS Core Technology Design

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Re: Need tool to zap core

2010-03-01 Thread Anne Lynn Wheeler
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.

Anne  Lynn Wheeler l...@garlic.com writes:
 misc. past posts mentioning DUMPRX.
 http://www.garlic.com/~lynn/submain.html#dumprx

from long ago and far away (mentions dumprx, vm370 rel6 sepp, and the
3090 service processor):

Date: 31 October 1986, 16:32:58 EST
To: wheeler
 
Re: 3090/3092 Processor Controll and plea for help
 
The reason I'm sending this note to you is due to your reputation of
never throwing anything away that was once useful (besides the fact
that you wrote a lot of CP code and (bless you) DUMPRX).
 
I've discussed this with my management and they agreed it would be
okay to fill you in on what the 3090 PC is so I can intelligently ask
for your assistance.
 
The 3092 (3090 PC) is basically a 4331 running CP SEPP REL 6 PLC29
with quite a few local mods. Since CP is so old it's difficult, if not
impossible to get any support from VM development or the change team.
 
What I'm looking for is a version of the CP FREE/FRET trap that we
could apply or rework so it would apply to our 3090 PC. I was hoping
you might have the code or know where I could get it from (source
hopefully).
 
The following is an extract from some notes sent to me from our local
CP development team trying to debug the problem. Any help you can
provide would be greatly appreciated.
 
... snip ...

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Re: Need tool to zap core

2010-02-28 Thread Shmuel Metz (Seymour J.)
In 8s7ko59k15vnib8c1qkvaqo83dkjppj...@4ax.com, on 02/28/2010
   at 09:48 AM, Binyamin Dissen bdis...@dissensoftware.com said:

Who suggested another case?

Nobody suggested *any* case; you left it open. That makes it reasonable to
take it as a general statement, rather than as one limited to a special
case.

Feel better now?

I'd feel better if the HMC let me plug in an ASN[1] Or if IBM brought back
DSS, suitably updated and supported. I won't hold my breathe.

[1] Yes, that would be system dependent, but then so would the page
fixing that I'd also want :-(

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Re: Need tool to zap core

2010-02-27 Thread Shmuel Metz (Seymour J.)
In 661eo5p6b92m848uk8ak0d8i7veo8pe...@4ax.com, on 02/26/2010
   at 01:18 AM, Binyamin Dissen bdis...@dissensoftware.com said:

This was ALTER/DISPLAY on a 3083.

Which doesn't answer my question. I've zapped storage fom the console, but
only when the address space of interest (JES2) was dispatched, and only
because it was the only way to get JES2 out of a loop.

If CR0-1 are set there is no reason that the hardware cannot do virtual.

There is if the address space that you want to alter isn't the active one.

Common addresses will be the same with any CR1.

So you only used it on the Common Area? That's no challenge.

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Re: Need tool to zap core

2010-02-27 Thread Binyamin Dissen
On Sat, 27 Feb 2010 21:21:58 -0500 Shmuel Metz (Seymour J.)
shmuel+ibm-m...@patriot.net wrote:

:In 661eo5p6b92m848uk8ak0d8i7veo8pe...@4ax.com, on 02/26/2010
:   at 01:18 AM, Binyamin Dissen bdis...@dissensoftware.com said:

:This was ALTER/DISPLAY on a 3083.

:Which doesn't answer my question. I've zapped storage fom the console, but
:only when the address space of interest (JES2) was dispatched, and only
:because it was the only way to get JES2 out of a loop.

Who suggested another case?

:If CR0-1 are set there is no reason that the hardware cannot do virtual.

:There is if the address space that you want to alter isn't the active one.

Ouch. That hurt.

:Common addresses will be the same with any CR1.

:So you only used it on the Common Area? That's no challenge.

Touché.

Feel better now?

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http://www.dissensoftware.com

Director, Dissen Software, Bar  Grill - Israel


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Re: Need tool to zap core

2010-02-26 Thread Shane Ginnane
Mmmm - I have a plane of core (in a plastic case) sitting in my home office - 
8k from memory. I 
can see the cores and wires, but it don't look like there are any nonotubes 
there  ;-)

What got me about that reference, is that there is such a thing as a Centre 
for Spintronics and 
Quantum Computation. Sounds more attractive than the Physics I did at Uni.

Shane ...

On Thu, Feb 25th, 2010 at 2:17 PM, Anne  Lynn Wheeler wrote:

 what is old is new again:

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Re: Need tool to zap core

2010-02-25 Thread Kenneth J. Kripke
Isn't there a REFBEFOR operand for SLIP TRAPS where you can effectively zap 
storage?  I think you can specify the RANGE=( ) operand and effectively zap 
storage.  I do not have access to a system right now to validate this, but, it 
seems to me I was able to zap a module or piece of storage using this.  

SLIP SET,RANGE=(low,high addresses),ACTION=REFBEFOR,DATA=whatever,END 

The manual I am referencing is MVS System Commands, Document SA22-7627-21

Ken Kripke 
kkri...@mindspring.com

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Re: Need tool to zap core

2010-02-25 Thread Elardus Engelbrecht
Martin Kline wrote:

Never resulted in an IPL with my own such code . :)

There is always a FIRST time combined with Murphy's law, then you'll be 
zapped by your boss. ;-D

To the OP: You could perhaps schedule the zap action in after hours just to 
be safe...

Just re-read Ed Gould's post to see how dangerous is a zap...

Groete / Greetings
Elardus Engelbrecht

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Re: Need tool to zap core

2010-02-25 Thread Shmuel Metz (Seymour J.)
In 8umao5djcg6ub3m98u7naoe2sboe7cb...@4ax.com, on 02/24/2010
   at 07:03 PM, Binyamin Dissen bdis...@dissensoftware.com said:

If you have access to the HMC you can use whatever the alter/display
screens are called nowadays.

AFAIK that works only on real addresses.
 
-- 
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Re: Need tool to zap core

2010-02-25 Thread Elardus Engelbrecht
Ed Gould wrote:

We had a IBM PSR at the time and if found anything remotely pointing at the 
product he would refuse to work on the problem anymore (couldn't blame him 
really).

What is PSR? 

I think it is (from Acronym Finder): Product Support Representative ?

Is that the correct abbreviation/meaning?

Or would you like that to mean: Parental Supervision Required? vbg ;-D
(Especially in a Zapping adventure!!! 8-D )

Groete / Greetings
Elardus Engelbrecht

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Re: Need tool to zap core

2010-02-25 Thread Mike Myers

Elardus:

Back in the '60s, the Field Engineering Division took over first-level 
support of OS/360, creating a new kind of Customer Engineer called a 
Program Support Representative (PSR). Their primary role was to examine 
a dump and determine if the problem was hardware or software related. If 
hardware, they would turn it over to a hardware customer engineer. If 
software, then they could attempt to fix or bypass the issue with a zap, 
if feasible. If not, then they would report it to development and try to 
work a temporary fix.


Field Engineering sent many of us from the field to Poughkeepsie to 
learn OS/360 and then to work on various projects which would allow us 
to make contacts among the OS/360 developers. The assignment was for 2 
years.


I was in this position from 1966-1968, but never went back to the field. 
Instead, I spent the next 3 years teaching PSRs in the Field Engineering 
Education Center in Poughkeepsie, teaching JCL, Utilities, dump reading, 
and OS/360 internals to PSRs.


The position just eventually faded away with the advent of 800-level-one 
support and RETAIN access.


Mike Myers
Mentor Services Corporation

  On 2/25/2010 7:07 AM, Elardus Engelbrecht wrote:

Ed Gould wrote:

   

We had a IBM PSR at the time and if found anything remotely pointing at the
 

product he would refuse to work on the problem anymore (couldn't blame him
really).

What is PSR?

I think it is (from Acronym Finder): Product Support Representative ?

Is that the correct abbreviation/meaning?

Or would you like that to mean: Parental Supervision Required?vbg  ;-D
(Especially in a Zapping adventure!!! 8-D )

Groete / Greetings
Elardus Engelbrecht

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Re: Need tool to zap core

2010-02-25 Thread Elardus Engelbrecht
Mike Myers wrote:
Back in the '60s, the Field Engineering Division took over first-level support 
of 
OS/360, creating a new kind of Customer Engineer called a  Program Support 
Representative (PSR). 

[ ... snipped ... ]

Many many thanks for your interesting history lesson. In fact your definition 
was one of the first hits in Acronym Finder, but after reviewing all available 
hits, I incorrectly selected Product instead of Program.

I will remember your definition.

Many Thanks and please keep up with your valuable postings on IBM-MAIN!

;-D

Groete / Greetings
Elardus Engelbrecht

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Re: Need tool to zap core

2010-02-25 Thread Anne Lynn Wheeler
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.


m...@mentor-services.com (Mike Myers) writes:
 Back in the '60s, the Field Engineering Division took over first-level
 support of OS/360, creating a new kind of Customer Engineer called a
 Program Support Representative (PSR). Their primary role was to
 examine a dump and determine if the problem was hardware or software
 related. If hardware, they would turn it over to a hardware customer
 engineer. If software, then they could attempt to fix or bypass the
 issue with a zap, if feasible. If not, then they would report it to
 development and try to work a temporary fix.

in the very early days of REX (before it was renamed and released to
customers) ... I wanted to demonstrate that it wasn't just another
pretty scripting language.

I selected that I would redo the (implemented in large number of
assembler LOCS) IPCS dump reader ... taking less than six weeks of my
time in under three months ... it would have ten times the function and
run ten times faster (some slight of hand to make the rex implementation
doing ten times the function, run ten times faster than the
assembler). part of the effort was gather signatures of failure modes
... and build a library of automated scripts that would examine dumps
for all known, recognizable failure mode signatures.

I also made it capable of running against the live kernel as well as
patching kernel storage.

For some reason I was never able to get it released as replacement for
the standard product ... but at one point nearly all internal
datacenters and PSRs were using it.

Getting tired of waiting to get approval for it to ever be released, I
managed to get a presentation approved for BAYBUNCH ... where I went in
detail on how I did the implementation. Within three months after that
presentation ... there were at least two other implementations.

misc. past posts mentioning DUMPRX.
http://www.garlic.com/~lynn/submain.html#dumprx

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Re: Need tool to zap core

2010-02-25 Thread Martin Kline
Never resulted in an IPL with my own such code . :)

There is always a FIRST time combined with Murphy's law, then you'll be 
zapped by your boss. ;-D

I've always interpreted that 'first time' reference to only include things that 
actually happen. For example: programming errors occur, so there must have 
been a FIRST program error, or bad vendor products are sold, so there must 
have been a first bad product. But to assume something bad that has not 
happened will eventually happen is a pessimistic view of things. Although less 
likely to occur, I could use the same logic to assert that there will be a 
first 
time for the planet Earth to suddenly leave its orbit around Sol, change to 
antimatter, and instantaneously transport itself across the universe. The first 
time that happens, my boss won't be very happy either. 

Nevertheless, part of my responsibility in undertaking such a potentially 
dangerous task is to do everything I can to ensure there is no first time 
failure 
and subsequent unpleasant boss zapping. 

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Re: Need tool to zap core

2010-02-25 Thread Binyamin Dissen
On Wed, 24 Feb 2010 17:31:58 -0500 Shmuel Metz (Seymour J.)
shmuel+ibm-m...@patriot.net wrote:

:In 8umao5djcg6ub3m98u7naoe2sboe7cb...@4ax.com, on 02/24/2010
:   at 07:03 PM, Binyamin Dissen bdis...@dissensoftware.com said:

:If you have access to the HMC you can use whatever the alter/display
:screens are called nowadays.

:AFAIK that works only on real addresses.
 
I used it on virtual addresses. As long as the page is in.

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Re: Need tool to zap core

2010-02-25 Thread Chris Mason
Mike

Just yesterday I was trying to recall which colleagues I had worked with more 
than once during my career. One of them I fondly remember was a key 
character in a story I file under The Back Stairs.

The relevance will become apparent.

The salesmen lived - mainly - on the 7th floor (we won't hear about them any 
more - well, one), the SEs on the 6th floor and the CEs (Customer Engineers 
aka FEs in some geographies) on the 5th floor. I shared a desk with a 
salesman - recently an SE[1] - and the SE, Peter, who handled everything to 
do with DOS, the old S/360 operating system, to whom I was an understudy. 
The desk was located at the back of the open-plan office next to the door to 
the back stairs.

Normally all problems requiring fixes to DOS or one of its associated programs 
were fed to Peter and he handled them with alacrity. Then came the 
reassignment of responsibilities mentioned in the prompting post. It applied 
not 
only to OS/360 but across the board. I can date this more precisely 
than back in the '60s to 1968, probably the first half and certainly not the 
last quarter.

One day shortly after the announcement, our favourite customer called in with 
a problem. Peter took the call but was now obliged to redirect the call to 
Dave, the colleague who turned up again in my career, on the floor below. 
Peter may have folded his arms but he certainly just sat back with a particular 
smile on his face after putting down the handset. We waited. Very soon we 
heard the expected steps ascending the stairs.

Gradually the CEs took over software responsibility added to their continuing 
responsibility for hardware. This little story describes the rather 
inefficient 
way the process got started for DOS in one branch office.

Chris Mason

[1] A bit of a digression: this guy had been a ship's architect and knew a bit 
about programming. I had a FORTRAN program - something to do with 
solenoids - which essentially worked except for a number per iteration which 
was intended to confirm that the main calculation was correct. The number 
was never quite what it was supposed to be. FORTRAN having the reputation 
for being unintelligible, I had made some effort to use expansive and 
meaningful variable names. Unfortunately, I hadn't noticed that this principle 
had led me into naming a variable with an initial i when it was supposed 
*not* to be an integer. My salesman colleague, looking at my code with an 
uncluttered mind, spotted my - classic! - mistake.

On Thu, 25 Feb 2010 09:18:22 -0500, Mike Myers m...@mentor-
SERVICES.COM wrote:

Elardus:

Back in the '60s, the Field Engineering Division took over first-level
support of OS/360, creating a new kind of Customer Engineer called a
Program Support Representative (PSR).  ...

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Re: Need tool to zap core

2010-02-25 Thread Elardus Engelbrecht
Martin Kline wrote:
I've always interpreted that 'first time' reference to only include things that
actually happen. For example: programming errors occur, so there must have
been a FIRST program error, or bad vendor products are sold, so there must
have been a first bad product. But to assume something bad that has not
happened will eventually happen is a pessimistic view of things. Although less
likely to occur, I could use the same logic to assert that there will be a first
time for the planet Earth to suddenly leave its orbit around Sol, change to
antimatter, and instantaneously transport itself across the universe. The first
time that happens, my boss won't be very happy either.

Nevertheless, part of my responsibility in undertaking such a potentially
dangerous task is to do everything I can to ensure there is no first time 
failure
and subsequent unpleasant boss zapping.

Here I agree to agree with you! Thanks for sharing your view.

I've also done potentially dangerous tasks just to keep things up and running 
and to avoid first time failures. You'll have to balance things with all 
available 
information and risks and then decide how to take matters further including 
zapping or IPL. Just like you and others I have to invent solutions to a 'first 
time' problems. 

Please keep up with your postings on this list! ;-D

Groete / Greetings
Elardus Engelbrecht

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Re: Need tool to zap core

2010-02-25 Thread Tony Harminc
On 24 February 2010 17:54, Mark Jacobs mark.jac...@custserv.com wrote:
 TESTAUTH. It's protected by a SAF profile.

Yup. But it still doesn't have any commands that will modify protected
storage, or for that matter, fetch from fetch-protected storage. Of
course the authorized program you run under it can do anything it
wants.

Tony H.

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Re: Need tool to zap core

2010-02-25 Thread Shmuel Metz (Seymour J.)
In cf3do5dmu1n8tvd5mr2ec796thohq1b...@4ax.com, on 02/25/2010
   at 04:49 PM, Binyamin Dissen bdis...@dissensoftware.com said:

I used it on virtual addresses. As long as the page is in.

How do you get the HMC to use the correct translate tables?
 
-- 
 Shmuel (Seymour J.) Metz, SysProg and JOAT
 ISO position; see http://patriot.net/~shmuel/resume/brief.html 
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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Re: Need tool to zap core

2010-02-25 Thread Binyamin Dissen
On Thu, 25 Feb 2010 14:46:08 -0500 Shmuel Metz (Seymour J.)
shmuel+ibm-m...@patriot.net wrote:

:In cf3do5dmu1n8tvd5mr2ec796thohq1b...@4ax.com, on 02/25/2010
:   at 04:49 PM, Binyamin Dissen bdis...@dissensoftware.com said:

:I used it on virtual addresses. As long as the page is in.

:How do you get the HMC to use the correct translate tables?

This was ALTER/DISPLAY on a 3083. I also did it on a P390. I would assume that
the HMC is the same.

If CR0-1 are set there is no reason that the hardware cannot do virtual.
Common addresses will be the same with any CR1.

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Director, Dissen Software, Bar  Grill - Israel


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Re: Need tool to zap core

2010-02-25 Thread Ed Gould

From: Elardus Engelbrecht elardus.engelbre...@sita.co.za
To: IBM-MAIN@bama.ua.edu
Sent: Thu, February 25, 2010 6:07:49 AM
Subject: Re: Need tool to zap core

Ed Gould wrote:

We had a IBM PSR at the time and if found anything remotely pointing at the 
product he would refuse to work on the problem anymore (couldn't blame him 
really).

What is PSR? 

I think it is (from Acronym Finder): Product Support Representative ?
---

Is that the correct abbreviation/meaning?
Nope its a IBM Program Service Representative . On site IBM person (at least in 
our case) to handle dumps and OS related issues.

Ed




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Need tool to zap core

2010-02-24 Thread Pinnacle
I have a need to zap core, but my client does not have OMEGAMON.  I searched 
the CBT mods tape and came up empty.  What we're trying to do is a SETPROG 
LPA,ADD, but of course, there's a vector table that needs to be updated with 
the address of the new module.  This is not an SVC, so my only recourse to 
install this without an IPL is to zap core.  Are there any freeware tools 
out there for zapping core?


Regards,
Tom Conley 


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Re: Need tool to zap core

2010-02-24 Thread Staller, Allan
Try CBT 149 (UCLA Utilities) or CBT179-181 (Leonard Woren). IIRC there
is a program in (SUPERZAP?) that should do what you want...

HTH, 

snip
I have a need to zap core, but my client does not have OMEGAMON.  I
searched 
the CBT mods tape and came up empty.  What we're trying to do is a
SETPROG 
LPA,ADD, but of course, there's a vector table that needs to be updated
with 
the address of the new module.  This is not an SVC, so my only recourse
to 
install this without an IPL is to zap core.  Are there any freeware
tools 
out there for zapping core?
/snip

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Re: Need tool to zap core

2010-02-24 Thread Staller, Allan
Also try CBT082 and CBT086 

snip
Try CBT 149 (UCLA Utilities) or CBT179-181 (Leonard Woren). IIRC there
is a program in (SUPERZAP?) that should do what you want...

HTH, 

snip
I have a need to zap core, but my client does not have OMEGAMON.  I
searched 
the CBT mods tape and came up empty.  What we're trying to do is a
SETPROG 
LPA,ADD, but of course, there's a vector table that needs to be updated
with 
the address of the new module.  This is not an SVC, so my only recourse
to 
install this without an IPL is to zap core.  Are there any freeware
tools 
out there for zapping core?
/snip
/snip

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Re: Need tool to zap core

2010-02-24 Thread Martin Kline
I have a need to zap core, but my client does not have OMEGAMON.  I 
searched the CBT mods tape and came up empty.  What we're trying to do is 
a SETPROG LPA,ADD, but of course, there's a vector table that needs to be 
updated with the address of the new module.  This is not an SVC, so my only 
recourse to install this without an IPL is to zap core.  Are there any 
freeware 
tools out there for zapping core?

In a pinch I've written a short assembler language program to do that when I 
was dealing with common storage. Make it authorized. Switch to key zero. 
Verify the storage. Alter the storage. Switch back to user key. Exit.

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Re: Need tool to zap core

2010-02-24 Thread Rob Scott
Martin - surely you have missed out the last step :

Make it authorized. Switch to key zero. Verify the storage. Alter the storage. 
Switch back to user key. Exit..er...IPL

:-) 


Rob Scott
Developer
Rocket Software
275 Grove Street * Newton, MA 02466-2272 * USA
Tel: +1.617.614.2305 
Email: rsc...@rs.com
Web: www.rocketsoftware.com

-Original Message-
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of 
Martin Kline
Sent: 24 February 2010 16:43
To: IBM-MAIN@bama.ua.edu
Subject: Re: Need tool to zap core

I have a need to zap core, but my client does not have OMEGAMON.  I 
searched the CBT mods tape and came up empty.  What we're trying to do 
is a SETPROG LPA,ADD, but of course, there's a vector table that needs 
to be updated with the address of the new module.  This is not an SVC, 
so my only recourse to install this without an IPL is to zap core.  Are 
there any freeware tools out there for zapping core?

In a pinch I've written a short assembler language program to do that when I 
was dealing with common storage. Make it authorized. Switch to key zero. 
Verify the storage. Alter the storage. Switch back to user key. Exit.

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Re: Need tool to zap core

2010-02-24 Thread Lizette Koehler
I thought the TEST function of TSO could do this as well?  

Lizette




Try CBT 149 (UCLA Utilities) or CBT179-181 (Leonard Woren). IIRC there
is a program in (SUPERZAP?) that should do what you want...

HTH, 

snip
I have a need to zap core, but my client does not have OMEGAMON.  I
searched 
the CBT mods tape and came up empty.  What we're trying to do is a
SETPROG 
LPA,ADD, but of course, there's a vector table that needs to be updated
with 
the address of the new module.  This is not an SVC, so my only recourse
to 
install this without an IPL is to zap core.  Are there any freeware
tools 
out there for zapping core?
/snip


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Re: Need tool to zap core

2010-02-24 Thread John P Kalinich
Tom Conley of the IBM Mainframe Discussion List IBM-MAIN@bama.ua.edu
wrote on 02/24/2010 10:21:07 AM:

 I have a need to zap core, but my client does not have OMEGAMON.  I
searched
 the CBT mods tape and came up empty.  What we're trying to do is a
SETPROG
 LPA,ADD, but of course, there's a vector table that needs to be updated
with
 the address of the new module.  This is not an SVC, so my only recourse
to
 install this without an IPL is to zap core.  Are there any freeware tools

 out there for zapping core?

MXI can zap up to 8-bytes of common storage in batch mode.

Regards,
John K


Function
  Alters up to eight bytes of common storage. This command can only be
  executed in BATCH.
Command Syntax
  ZAP address VER(hex) REP(hex)
Keywords
  address  The address of the data that you wish to change. This
address
   must reside within one of the following storage locations :
 CSA
 SQA
 R/W Nucleus
 Extended CSA
 Extended SQA
 Extended R/W Nucleus
  VER(hex) The existing hexadecimal contents at the specified address.
  REP(hex) The hexadecimal contents that are to be be used to replace
the
   contents specified in VER().
Considerations
  1. Use this command with utmost care. Incorrect or mistaken use will most
 likely cause a complete system outage.
  2. The VER() keyword is always required.
  3. The length of hexadecimal characters on the VER() and REP() keywords
must
 be equal.
  4. By default MXI will issue a WTOR asking for confirmation of the
storage
 alteration. The operator must reply with a 'Y' before the storage
 contents are changed.
  5. By default MXI is shipped with the all users denied access to the ZAP
 command and specific install actions are required to activate it.
Example
  //ZAPEXEC PGM=MXI,PARM=BATCH
  //STEPLIB  DD DISP=SHR,DSN=your.apf.loadlib
  //SYSPRINT DD SYSOUT=*
  //SYSINDD *
ZAP FDEF0 VER() REP(0001)
  /*

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Re: Need tool to zap core

2010-02-24 Thread Binyamin Dissen
On Wed, 24 Feb 2010 11:21:07 -0500 Pinnacle pinnc...@rochester.rr.com wrote:

:I have a need to zap core, but my client does not have OMEGAMON.  I searched 
:the CBT mods tape and came up empty.  What we're trying to do is a SETPROG 
:LPA,ADD, but of course, there's a vector table that needs to be updated with 
:the address of the new module.  This is not an SVC, so my only recourse to 
:install this without an IPL is to zap core.  Are there any freeware tools 
:out there for zapping core?

If you have access to the HMC you can use whatever the alter/display screens
are called nowadays.

--
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http://www.dissensoftware.com

Director, Dissen Software, Bar  Grill - Israel


Should you use the mailblocks package and expect a response from me,
you should preauthorize the dissensoftware.com domain.

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especially those from irresponsible companies.

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Re: Need tool to zap core

2010-02-24 Thread Martin Kline
Martin - surely you have missed out the last step :

Make it authorized. Switch to key zero. Verify the storage. Alter the 
storage. Switch back to user key. Exit..er...IPL

Never resulted in an IPL with my own such code . :)  

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Re: Need tool to zap core

2010-02-24 Thread Chris Mason
Tom

IMMSMC:

If it's a 360 Model 40, there are some nice tactile switches it's a pleasure to 
flip on the front of the machine.

If it's a 360 Model 30 there are some tacky dials on the front of the machine.

I'm afraid those were the only two models with *core* with which I ever got 
to play - and change data in storage!

Chris Mason

On Wed, 24 Feb 2010 11:21:07 -0500, Pinnacle 
pinnc...@rochester.rr.com wrote:

I have a need to zap core, ... Are there any freeware tools
out there for zapping core?

Regards,
Tom Conley

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Re: Need tool to zap core

2010-02-24 Thread David Cole
It's not free, but z/XDC will do the trick. Even more, it can also 
zap storage that's been made
read only (such as the PLPA, read-only sections of the nucleus, 
and any other page that has been made read-only by the PGSER macro).


If your client has z/XDC, then this would be an easy way to 
accomplish what you want.


Dave Cole

At 2/24/2010 11:21 AM, Pinnacle wrote:
I have a need to zap core, but my client does not have OMEGAMON.  I 
searched the CBT mods tape and came up empty.  What we're trying to 
do is a SETPROG LPA,ADD, but of course, there's a vector table that 
needs to be updated with the address of the new module.  This is not 
an SVC, so my only recourse to install this without an IPL is to zap 
core.  Are there any freeware tools out there for zapping core?


Regards,
Tom Conley


Dave Cole  REPLY TO: dbc...@colesoft.com
ColeSoft Marketing WEB PAGE: http://www.colesoft.com
736 Fox Hollow RoadVOICE:540-456-8536
Afton, VA 22920FAX:  540-456-6658 


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Re: Need tool to zap core

2010-02-24 Thread Anne Lynn Wheeler
The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.

chrisma...@belgacom.net (Chris Mason) writes:
 If it's a 360 Model 40, there are some nice tactile switches it's a pleasure 
 to 
 flip on the front of the machine.

 If it's a 360 Model 30 there are some tacky dials on the front of the machine.

 I'm afraid those were the only two models with *core* with which I ever got 
 to play - and change data in storage!

some front panels
http://infolab.stanford.edu/pub/voy/museum/pictures/display/3-1.htm
http://infolab.stanford.edu/pub/voy/museum/pictures/display/FAA9020.html
http://en.wikipedia.org/wiki/File:IBM360-65-1.corestore.jpg
http://ibmcollectables.com/gallery/FabriTek65/HPIM0775
http://ibmcollectables.com/gallery/FabriTek65/HPIM0769_001
http://ibmcollectables.com/gallery/FabriTek65/HPIM0771

I got to play a lot with both 360/30 and then a 360/67 (front panel of
65  67 were essentially the same).

there was an incident with 370 before virtual memory was announced where
some virtual memory documents leaked to the press. there was a
watergate-like investigation ... and then they went around putting
serial numbers on the underside of the glass in all corporate copy
machines ... so all copied pages would carry the serial of the copy
machine that the copy was made on.

for Future System ... there was an idea to do softcopy DRM to minimize
the leakage of documents. The vm370 development group did a extra secure
version of vm370 that was used inside the corporation for future system
documents (only be able to read them on 3270 display).

One weekend, I had some dedicated machine time scheduled in the vm370
development group machine room ... and stopped by friday afternoon to
make sure everything was prepared. they took me into the machine room
... and made some reference that even I if I was left alone in the
machine room, I wouldn't be able to access the FS documents.

It was just a little too much, i made sure the machine was disabled for
all terminals for login ... and then did a one-byte patch to kernel
memory ... and then everything was available (aka the one-byte was in
the password checking routine ... so that regardless of what was typed
in, it would be accepted as valid password).

i made some reference to the only countermeasure (for somebody with
physical access) is completely disabling all mechanisms for compromising
the operation of the system.

-- 
42yrs virtualization experience (since Jan68), online at home since Mar1970

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Re: Need tool to zap core

2010-02-24 Thread Tony Harminc
On 24 February 2010 11:49, Lizette Koehler stars...@mindspring.com wrote:
 I thought the TEST function of TSO could do this as well?

No - not even TESTAUTH will zap protected storage. You can, however,
write a tiny program (one instruction, perhaps) that then runs under
TESTAUTH to do the dirty work. But this is really for those in a
desperate production situation, or those running on a sandbox.

Tony H.

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Re: Need tool to zap core

2010-02-24 Thread Spencer, Mike
If the customer has SYSPROG Services from BMC they can perform the ZAP.

Mike Spencer
BMC Software


-Original Message-
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of 
Tony Harminc
Sent: Wednesday, February 24, 2010 12:39 PM
To: IBM-MAIN@bama.ua.edu
Subject: Re: Need tool to zap core

On 24 February 2010 11:49, Lizette Koehler stars...@mindspring.com wrote:
 I thought the TEST function of TSO could do this as well?

No - not even TESTAUTH will zap protected storage. You can, however,
write a tiny program (one instruction, perhaps) that then runs under
TESTAUTH to do the dirty work. But this is really for those in a
desperate production situation, or those running on a sandbox.

Tony H.

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Re: Need tool to zap core

2010-02-24 Thread Bruno Sugliani
On Wed, 24 Feb 2010 11:21:07 -0500, Pinnacle pinnc...@rochester.rr.com wrote:

I have a need to zap core, but my client does not have OMEGAMON.  I searched
the CBT mods tape and came up empty.  What we're trying to do is a SETPROG
LPA,ADD, but of course, there's a vector table that needs to be updated with
the address of the new module.  This is not an SVC, so my only recourse to
install this without an IPL is to zap core.  Are there any freeware tools
out there for zapping core?

Regards,
Tom Conley

Can't you use a SLIP SA command with a REFAFTER ? 
 
Bruno Sugliani 
zxnetconsult(at)free(dot)fr

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Re: Need tool to zap core

2010-02-24 Thread Shmuel Metz (Seymour J.)
In 9eaad8039236466f809085d1a7c40...@pinnacledesk1, on 02/24/2010
   at 11:21 AM, Pinnacle pinnc...@rochester.rr.com said:

I have a need to zap core,

I might believe a need to zap storage.

I searched 
the CBT mods tape and came up empty.

Was the old COREZAP0 program ever updated to run on a current system?

I've got a personal storage zap program, but I last used it on SVS and it
would need a major overhaul for MVS, e.g., page fixing, serialization.

Have you considered writing a short program that just updates your vector
table?

-- 
 Shmuel (Seymour J.) Metz, SysProg and JOAT
 ISO position; see http://patriot.net/~shmuel/resume/brief.html 
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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Re: Need tool to zap core

2010-02-24 Thread Shmuel Metz (Seymour J.)
In
5354659.126703019.javamail.r...@mswamui-cedar.atl.sa.earthlink.net,
on 02/24/2010
   at 11:49 AM, Lizette Koehler stars...@mindspring.com said:

I thought the TEST function of TSO could do this as well?  

There's an authorized alias; I don't recall whether it's TESTAUTH or
AUTHTEST.
 
-- 
 Shmuel (Seymour J.) Metz, SysProg and JOAT
 ISO position; see http://patriot.net/~shmuel/resume/brief.html 
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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Re: Need tool to zap core

2010-02-24 Thread Mark Jacobs
TESTAUTH. It's protected by a SAF profile.

Mark Jacobs 


-Original Message-
From: IBM Mainframe Discussion List on behalf of Shmuel Metz (Seymour J.)
Sent: Wed 2/24/2010 5:31 PM
To: IBM-MAIN@bama.ua.edu
Subject: Re: Need tool to zap core
 
In
5354659.126703019.javamail.r...@mswamui-cedar.atl.sa.earthlink.net,
on 02/24/2010
   at 11:49 AM, Lizette Koehler stars...@mindspring.com said:

I thought the TEST function of TSO could do this as well?  

There's an authorized alias; I don't recall whether it's TESTAUTH or
AUTHTEST.
 
-- 
 Shmuel (Seymour J.) Metz, SysProg and JOAT
 ISO position; see http://patriot.net/~shmuel/resume/brief.html 
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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Re: Need tool to zap core

2010-02-24 Thread Ed Gould

From: David Cole dbc...@colesoft.com
To: IBM-MAIN@bama.ua.edu
Sent: Wed, February 24, 2010 1:41:07 PM
Subject: Re: Need tool to zap core

It's not free, but z/XDC will do the trick. Even more, it can also zap storage 
that's been made
read only (such as the PLPA, read-only sections of the nucleus, and any 
other page that has been made read-only by the PGSER macro).

If your client has z/XDC, then this would be an easy way to accomplish what you 
want.

Dave Cole
--SNIP--

A LONG time ago we had a company (hazy to the name but it might be SEI) that 
had a memory zapper it was supposed to be used only in CICS regions but it grew 
to wide use by quite a few people. It was probably the single most reason why 
our system(s) crashed so often. We had a few experts that while dangerous 
were almost criminal (story ends there). A few years later when the company was 
just about to go out the door (thank god) some blankity blank programmer 
convinced management to keep it around. Though our system crashes were reduced 
they still occurred. We had a IBM PSR at the time and if found anything 
remotely pointing at the product he would refuse to work on the problem anymore 
(couldn't blame him really). 
Fast forward 2 years and one of the divisions hire a reasonably good assembler 
programmer. He got so good he was using the cross memory zapper everyday and 
low and behold the crashes increased but not as bad as before. 
I was really happy to get out of the place as the stand alone dumps were 
stacked higher than the top of my cobicle (not a true cubicle but close enough 
for my purpose.

Ed




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Re: Need tool to zap core

2010-02-24 Thread Glen Gasior
I had to call my dad to find out what was meant by core.

On Wed, Feb 24, 2010 at 10:21 AM, Pinnacle pinnc...@rochester.rr.comwrote:

 I have a need to zap core, but my client does not have OMEGAMON.  I
 searched the CBT mods tape and came up empty.  What we're trying to do is a
 SETPROG LPA,ADD, but of course, there's a vector table that needs to be
 updated with the address of the new module.  This is not an SVC, so my only
 recourse to install this without an IPL is to zap core.  Are there any
 freeware tools out there for zapping core?

 Regards,
 Tom Conley
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(630) 712-2104
Chicago, Illinois 60611
Leadership that improves the process of change

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Re: Need tool to zap core

2010-02-24 Thread Anne Lynn Wheeler
glen.manages@gmail.com (Glen Gasior) writes:
 I had to call my dad to find out what was meant by core.

what is old is new again:
http://www.abc.net.au/science/articles/2010/02/24/2828135.htm
2010 International Conference On Nanoscience and Nanotechnology
http://www.ausnano.net/iconn2010/

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