Please be aware that cross-memory POSTs are not ideal and if possible I would 
consider a redesign of your code to use other methods - for example :

(1) Pause/Release
(2) PC-ss service into ECB-owner ASID to issue POST on caller behalf

Just my 2c.

Rob Scott
Rocket Software

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Joseph Reichman
Sent: Wednesday, September 26, 2018 1:01 PM
To: [email protected]
Subject: Re: ECB in XMEM Post

Sorry I misunderstood
So if Address Space A would like to post Address B the ECB must be addressable 
to to B as that is the Target the ASCB is that of the target Address space B 
the ECB can be B private area in A all I need is the address of the ECB even in 
private and ASCB of B

Thanks


On Sep 26, 2018, at 7:41 AM, Peter Relson <[email protected]> wrote:

>> This is just another way of saying that for XMEM the ECB is in CSA
>> right
> ?
> No, not right.
>
> What within the wording "must be addressable from the address space
> identified by the ASCB parameter" makes you say that? Storage
> addressable from an address space includes common storage (whether CSA
> or SQA) and private storage of the address space. The ECB can be in
> any of those areas.
>
> Peter Relson
> z/OS Core Technology Design
>
>
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