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Abend S04C - Solution?


IBM Mainframe Forums -> ABENDS & Debugging
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hellblazer

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Joined: 26 Jun 2010
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PostPosted: Tue Jul 20, 2010 10:11 pm
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Hi this morning i got the abend S04C while i am executing a COBOL program when i checked with SAR(spool) i found the RC S04C.
I just want to know what could be the reason for this abend.
Also i want to let you know that when i rerun the same job, the job ran fine and got the output but cant find what is the reason.

Note: i am opening this topic in a new thread because in previous threads related to this topic most of them switched from S04C to S0C4. people its not S0C4 its S04C

can anyone help me by giving me the reason for occurence of this abend.
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hellblazer

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PostPosted: Tue Jul 20, 2010 10:15 pm
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I cant give any spool information here because its a client machine which it does not have access to google even.

Also find the below information i got from google regarding this abend.

Code:
S04C -THE TERMINAL MONITOR PROGRAM (TMP) WAS INVOKED AT ENTRY POINT IKJEFT1A AND THE TMP DETACHED A PROGRAM THAT COMPLETED WITH A NON-ZERO COMPLETION CODE (WHICH IS IN REGISTER 15).


I can understand from the above message that IKJEFT1A is a TMP but i get properly why the abend occured. do someone help me by cracking this abend
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William Thompson

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PostPosted: Tue Jul 20, 2010 10:33 pm
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What is in R15?
The program running issued a non-zero RC, why?
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Robert Sample

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Location: Dubuque, Iowa, USA

PostPosted: Tue Jul 20, 2010 10:35 pm
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04C

Explanation: A user invoked the TMP (terminal monitor program) and the TMP detached a program that completed with a nonzero completion code. The nonzero completion code is in register 15.
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hellblazer

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PostPosted: Tue Jul 20, 2010 10:57 pm
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William Thompson wrote:
What is in R15?
The program running issued a non-zero RC, why?



Once i reach office tomorrow i ll let u know the information you have asked me..
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bipinpeter

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Joined: 18 Jun 2007
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PostPosted: Wed Jul 21, 2010 8:51 am
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Hi Hellblazer,
My understanding is as below,
You are invoking a program using TMP as IKJEFT**, your program given some non zero return code.Any non zero return code given to TMP, It will throw the abend S04C abend.the return code of your actual program will be in Register 15, normally register 15 is ued to store the return code.From the Abend Aid or CEEDUMP you will get the value of register 15
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hellblazer

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PostPosted: Wed Jul 21, 2010 5:26 pm
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Hi all thanks a lot.

When i checked with SAR it had an registy for abend.

in that for R15 i had 000008 as value. And yes since this is eight the abend occurred. But why this abend didnt come when we rerun the program. Is that someway related to our input file. If yes then how can i find the error record.

Sorry for asking too many questions icon_smile.gif
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bipinpeter

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Joined: 18 Jun 2007
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Location: Cochin/Kerala/India

PostPosted: Wed Jul 21, 2010 5:29 pm
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The S04C abend is a type of abnormal termination, indicates a protection exception, specifically related to a program attempting to access or perform an operation on invalid or unauthorized storage areas. Here's a detailed explanation and steps to address an S04C abend:

Understanding S04C Abend:

Protection Exception:
The S04C abend is categorized as a protection exception, signaling that the program encountered an operation it was not permitted to execute.

Invalid Storage Access:
This abend typically occurs when the program attempts to access or manipulate storage areas that are not authorized for its use. It may involve invalid addresses, unallocated storage, or unauthorized operations.

Common Causes:

S04C abends are often caused by programming errors, such as attempting to access null pointers, accessing uninitialized variables, or using incorrect storage addresses.

Steps to Resolve S04C Abend:

Review Abend Messages:
Examine the S04C abend message and associated dump to identify the specific instruction, storage address, or operation causing the protection exception.
Look for clues in the abend message, such as the program counter (PC) value or storage location, to pinpoint the error location.

Code Inspection:
Review the COBOL program code thoroughly, focusing on areas involving storage access, pointers, dynamic memory allocation, or file handling.
Check for potential programming errors, such as null pointer dereference, array index out of bounds, or invalid data conversions.

Data Validation and Error Checking:
Implement robust data validation checks to ensure that input data is valid and conforms to expected formats.
Include error checking routines to detect and handle unexpected conditions, such as null values or invalid data, before processing.

Pointer and Storage Access:
Ensure proper handling of pointers, storage allocation/deallocation, and dynamic data structures to avoid unauthorized storage access or invalid memory operations.
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