Thanks 

> On Apr 3, 2023, at 3:32 PM, Seymour J Metz <[email protected]> wrote:
> 
> PROBDESCAD=probdescad
> 
> 
> --
> Shmuel (Seymour J.) Metz
> http://mason.gmu.edu/~smetz3
> 
> ________________________________________
> From: IBM Mainframe Discussion List [[email protected]] on behalf of 
> Tony Harminc [[email protected]]
> Sent: Monday, April 3, 2023 3:14 PM
> To: [email protected]
> Subject: Re: Calling SVC 51
> 
>> On Mon, 3 Apr 2023 at 13:41, Joseph Reichman <[email protected]> wrote:
>> 
>> Transaction dump requires IPCS as well it’s unformatted seems restricted to 
>> one address space
> 
> I'm confused. The result of SDUMP is also unformatted, hence that 4160
> FBS (don't forget the "S").
> 
> (I shouldn't call it "unformatted"; it's not formatted for people to
> read, but the dump records in those blocks are mapped by a strangely
> nested set of macros starting with AMDDATA or BLSRPRD if you prefer,
> so it's certainly structured and mostly documented data.)
> 
> So where, i.e. in what kind of record, would any message you want to
> write actually go?
> 
> Tony H.
> 
>>>> On Apr 3, 2023, at 1:28 PM, Seymour J Metz <[email protected]> wrote:
>>> 
>>> Have you considered writing a message in a transaction dump?
>>> 
>>> ________________________________________
>>> From: IBM Mainframe Discussion List <[email protected]> on behalf of 
>>> Joseph Reichman <[email protected]>
>>> Sent: Monday, April 3, 2023 11:37 AM
>>> To: [email protected]
>>> Subject: Re: Calling SVC 51
>>> 
>>> I got the snap(x) to work dumping the data space owned by another address 
>>> space
>>> 
>>> For my snap(x) dataset I was able to write messages
>>> In my recovery where the program abended
>>> And registers
>>> 
>>> Just wondering if I can do this with a sdump(x)
>>> 
>>> I know the dcb is RECFM=FB and lrecl=4160
>>> 
>>>> On Apr 3, 2023, at 8:48 AM, [email protected] wrote:
>>>> 
>>>> I know
>>>> 
>>>> I wrote a generic dump routine
>>>> 
>>>> If first flag byte +1 of the parm list  bit0 is 0 its snap(x) NOT sdumpx
>>>> 
>>>> I am trying to dump a dataspace created in a SRB in another address space
>>>> the doc says I should be able to do it with snapx
>>>> 
>>>> Here is the doc
>>>> 
>>>> Use the DSPSTOR parameter on the SNAPX macro to dump storage from any data
>>>> space that the caller has addressability to, providing the program also has
>>>> a TCB key (for SCOPE=SINGLE and SCOPE=ALL data spaces) or a PSW key (for a
>>>> SCOPE=COMMON data space) that matches the storage key of the data space.
>>>> 
>>>> As it was created with SCOPE=ALL
>>>> 
>>>> I would rather use SNAPX because it easier for me to look in ISPF browse 
>>>> the
>>>> IPCS
>>>> thanks
>>>> -----Original Message-----
>>>> From: IBM Mainframe Discussion List <[email protected]> On Behalf Of
>>>> Peter Relson
>>>> Sent: Monday, April 3, 2023 8:27 AM
>>>> To: [email protected]
>>>> Subject: Re: Calling SVC 51
>>>> 
>>>> If by "calling SVC 51" you mean "issuing SNAP(X)", we can continue.  SVC 51
>>>> is used for multiple purposes.
>>>> 
>>>> Use the DCB attributes that are documented or don't bother playing.
>>>> 
>>>> <snip>
>>>> I am trying to dump a dataspace (that is owned by an other address space)
>>>> SNAPX doc says "The system dumps storage from any data space to which the
>>>> caller has authority" I interpret this to mean that the ALET is on my DU-AL
>>>> </snip>
>>>> 
>>>> That is not the right interpretation. You have access to spaces represented
>>>> by entries on your DU-AL, your PASN-AL, or a common area data spaces. In 
>>>> all
>>>> cases, you would not have access to an entry marked "private" unless you
>>>> have a matching EAX.
>>>> 
>>>> SNAP(X) provides information only for data accessible from your address
>>>> space (whether because it is part of the address space or is accessible by 
>>>> a
>>>> suitable access list).
>>>> 
>>>> Further, if the dataspace is "owned by another address space", it can be
>>>> risky to add it to "your" access list.
>>>> 
>>>> Peter Relson
>>>> z/OS Core Technology Design
>>>> 
>>>> 
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