>b) I know "SVC D" is also entered for normal task termination. In an oooold 
>MVS debugging manual I found that the first byte of R1 is x'08' this indicates 
>RTM2 is called for task termination cleanup. The x'08 does no longer seem to 
>hold true. How can I identify such an non-error an SVC D entry?
>>Error entries usually have an asterisk is front of the word SVC. I learned 
>>early on to do a "f '*'" in the trace table to find the entry for the abend. 
>>If you don't see the *rcvy entries following the svc d, chances are that 
>>you're looking at normal termination. Another indication is that IIRC normal 
>>termination doesn't have an abend code.


Yes, the first thing I always do when looking at a system trace is "DOWN MAX", 
"REPORT VIEW", "F '*' 20 PREV", and then search upwards.



>>c) In some dumps I see "SVC 3" (exit) trace entries, sometimes I can see the 
>>"SVC 3E" (DETACH), sometime it is not in the trace.
>What's the question on this?


Excellent question ;-) It was more of a bit of information than a question.




>Always look at the earlieast error indication.


Normally, yes. In this case the first entry marked is for the S13E which we see 
often, followed by a normal task termination SVC D. Both are marked with an 
asterisk, but this is not an error that leads to job termination.


Also, sometime I/O entries are also marked in error, but the I/O does not 
necessarily belong to the address space in question, so these can also be 
ignored.


>Are there logrec entries for it? What is that error?


Only for the S13E (two of them).


>If it is a pic11, check the earlier trace table in that address space for a 
>freemain - sometimes it is a larger range that got freed.


I'll try to find that.


>Does a summary format on the problem address space work without errors? Is 
>there more than one tcb with a completion code?


Yes. No.




--
Peter Hunkeler



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