0388 is a class-3 error (invalid parameter list), assigned by DAIR, meaning "A 
required key not specified for any of the following requests":
ddname allocation, 
information retrieval, 
concatenation,
deconcatenation, 
remove In - Use, 
unallocation. 


On Mon, 29 Oct 2018 16:02:30 -0400, Steve Thompson <ste...@copper.net> wrote:

>I'm testing a special in-house developed utility. So it is
>designed to be invoked by a COBOL program.
>
>I'm going to tell you how I got here and all the stuff I've been
>doing, and then the effects of the SIS (IBMLink search), etc.
>before I ask my question.
>
>So a test of the code, once fixed to run AMODE=31, works when I
>do an allocation of one of my own data sets using the DD of SYSUT1.
>
>When I do this allocate, I do not specify anything special for
>the text units. I only use the DDNAME, DSNAME and disposition of SHR.
>
>Now, I come back and test the DEALLOC function, and I get a
>failure from SVC99, and in the RBX I get ERROR CODE 0388 - ALL
>REQUESTS EXCEPT DSNAME ALLOCATIONS REQUIRED KEY NOT SPECIFIED (I
>know this because the program has SNAP logic built in so I can
>SNAP the Text units & pointers before and after the SVC99
>execution). This is also associated with IKJ56878I and that
>message makes no sense.
>
>But the doc for that message says go read the text messages in
>the manual, and basically, pay attention to the text keys that
>are required.
>
>Uh, it appears that only the DDNAME is required, but it doesn't
>say you can't also specify the DSNAME. It makes no difference, I
>can't get this to work.
>
>So, the message manual also says something about DAIRFAIL. Well I
>haven't played with DAIR directly for so long that I can't
>remember what manual(s) even hold that info, if they are even
>published these days.
>
>Ok, so I did a bunch of duckduckgo.com searches, and google, and
>I can't find anything that matches.
>
>So then I went to IBMLink and finally got the web pages to
>display formatted (Chrome) and searched and got no hits for the
>message, for dairfail, etc. And I was not just looking for APARs
>and PTFs, I was including other libraries for info as well.
>
>[KC comes into this now, and it locked up IE.] So back to Chrome
>and I can't find the info I need.
>
>Does anyone know if there is something special about SYSUTn as a
>DD for SVC99? I use these all the time via REXX, and I don't have
>these problems there.
>
>So it would seem that it should be simple as I did not turn on
>any special flags for doing the allocation (e.g., in-use, or
>similar).
>
>Regards,
>Steve Thompson
>
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