S0C7 because of memory overlapping

rgupta71 · Posted: Thu Jun 10, 2010 5:37 pm

Thanks Bharath.

One more question.
Where I can see the name of the array's that are having overflow in it.

CICS Guy · Posted: Thu Jun 10, 2010 5:40 pm

rgupta71 · Posted: Thu Jun 10, 2010 5:41 pm

CICS Guy ,You are right .I also found this statement to be incorrect.

Thanks.

Robert Sample · Posted: Thu Jun 10, 2010 5:58 pm

Using a variable with a value of X'000000' that is defined as PIC S9(05) COMP-3 for arithmetic will automatically generate a S0C7 abend. X'000000' is not a valid numeric value for COMP-3 data.

rgupta71 · Posted: Thu Jun 10, 2010 6:05 pm

Yes,this what the problem is.Due to some memory overlapping it is having some junk data.

Thanks

Anuj Dhawan · Posted: Thu Jun 10, 2010 6:15 pm

Robert Sample · Posted: Thu Jun 10, 2010 6:20 pm

I do not understand your terminology. Memory does not "overlap". It cannot overlap. There are N bytes of memory (where N depends upon the site and the configuration of the LPAR) and none of them can overlap -- ever. They each stand alone and unique. There is a concept in assembler of overlapping moves, which is often used to clear print lines and other data fields, but the move is overlapping -- not the memory.

Memory can be overlaid, certainly, but that is not overlapping. Overlaid memory can be caused by tables exceeding defined limits, subroutines that use more memory than is passed, and so forth. If you think your memory is overlapping, we cannot help you since it is not possible for this to occur. If you think there is an overlay problem, then your program needs a complete code review to determine which table or subroutine call (or whatever) is causing the memory overlay and then you can fix it. This is best accomplished by your peers or seniors at your site, not by a public forum.

rgupta71 · Posted: Thu Jun 10, 2010 6:21 pm

@ANuj Dhawan
We cannot have X'000000' in a variable that is defined as PIC S9(05) COMP-3.But when the job abends the variable is having X'000000' value.So, I am assuming that there must be some kind of memory overlapping in this case.

Thanks.

dbzTHEdinosauer · Posted: Thu Jun 10, 2010 6:26 pm

rgupta71 · Posted: Thu Jun 10, 2010 6:29 pm

@dbzTHEdinosauer
What is wrong in this?

dbzTHEdinosauer · Posted: Thu Jun 10, 2010 6:32 pm

CICS Guy · Posted: Thu Jun 10, 2010 6:34 pm

Anuj Dhawan · Posted: Thu Jun 10, 2010 6:35 pm

Well, have you read the response from Robert. Before we start with, I'd like to state the classical sentecne from Robert - Terminology is absolutely critical to get right in IT since there are similar terms that may mean very different things.

And to make it worse, Memory is part of the processor where programs are loaded in order to run; you are talking about data of some file, which has to be on a disk -- files are stored on disk drives that are not part of the processor and hence, for sure not of memory.

enrico-sorichetti · Posted: Thu Jun 10, 2010 6:35 pm

rgupta71 · Posted: Thu Jun 10, 2010 6:35 pm

Thanks a lot dbzTHEdinosauer.

So this means that values of the variables are getting Overlaid.How can we resolve this kind of issue.

Terry Heinze · Posted: Thu Jun 10, 2010 6:37 pm

rgupta71,
You might be intending to say that definitions overlap (as in redefines). As Robert states, memory does not overlap.

enrico-sorichetti · Posted: Thu Jun 10, 2010 6:37 pm

another alternative would be a uninitialized variable.
but without looking at the program and at the dump very difficult to tell !

Anuj Dhawan · Posted: Thu Jun 10, 2010 6:40 pm

Well, please answer this too:

dbzTHEdinosauer · Posted: Thu Jun 10, 2010 6:42 pm

well, you could stop watching this thread for answers,

we can not provide you with a solution - we don't have your code

we can only provide you with methodologies -

you have an internal-cobol-table-item-field that contains an invalid value.

you can either use your site's debugger (xpeditor, intertest - whatever)
or just start putting DISPLAYs in your code to verify that contents of your
table.

if the program abends each time at the same place (same field occurance)
then you have a start.

also, and important, I was not laughing at you.
I was laughing at this situation which occurs often in this forum.
in fact, there is another thread today, where the discussion lead to
whether or not seniors should make attempts to correct the terminology of posters.

Robert Sample · Posted: Thu Jun 10, 2010 6:46 pm

rgupta71 · Posted: Thu Jun 10, 2010 6:50 pm

Sorry everyone.
I think it is some synchronization issue.When I was posting reply for the last post meanwhile some other person posted his reply.

Sorry once again.

Anuj Dhawan · Posted: Thu Jun 10, 2010 6:52 pm

Ok, not a problem - this thread had been drifted a lot, but could you get a way to go now?

rgupta71 · Posted: Thu Jun 10, 2010 7:01 pm

I have done modification in the source CBL SSRANGE (1st Line of the Program) in program and changed JCL to EXEC PGM=BATCH to EXEC PGM=BATCH,PARM='/CHECK(ON)'.The job abended as ususal but I am still looking for overflowing array's list.Where I can find the list.

Thanks

dbzTHEdinosauer · Posted: Thu Jun 10, 2010 7:06 pm

What is that I hear?

the scrapping of chairs as everyone madly clears the building!!

dneufarth · Posted: Thu Jun 10, 2010 7:11 pm

I think it's in core!

(for you old guys)