S0C4 ABEND executing VISION:Results out of linklist

Products

• Vision:Results
• Vision:Sixty

Issue/Introduction

VISION:Results executed successfully when a STEPLIB was used, but consistently abended with a S0C4 when executed out of the linklist.

 

Environment

Release:
Component: V:RSLT

Resolution

The first thing to do is verify the usual suspects: that the name of the VISION:Results execution library in the linklist is the same as was included on the STEPLIB and then that the failing module is not included in another library higher up the linklist concatenation.

If those do not pan out, verify that no modules in the VISION:Results execution library have been marked as re-entrant / reusable.

Our modules are delivered as non-reentrant / non-reusable, but are sometimes relinked for various reasons such as expansions or to clear the IDR directory.

When the attributes are changed the modules become unusable causing unpredictable and undesirable outcomes.

Review the entry point area of the dump looking for something like this around any DYLxxxxx modules:

001451  008FFA18  NAME..... DYL280V   ENTPT.... 0000B4D8  CHAIN.... 008FE000  001452            USE...... 0001      SP....... FC                            001453            REENTERABLE. REUSABLE.                                                        ===========  ======== 

 

When relinking the default should be non-reentrant and non-reusable, but to be sure and also to force a page boundary, you can relink as follows:

 //LKED    EXEC PGM=IEWL,REGION=2048K, //         PARM=('NCAL','REUS(NONE)') //SYSLIB   DD  DSN=your.vresults.library,DISP=SHR //SYSLMOD  DD  DSN=your.vresults.library,DISP=SHR //SYSPRINT DD  SYSOUT=* //SYSLIN   DD  *  ORDER FRDRV00(P)  INCLUDE SYSLIB(DYL280V)  ENTRY FRDRV00  NAME DYL280V(R)

 

You can display the attributes using AMBLIST to verify the settings are correct:

 //LIST    EXEC    PGM=AMBLIST //SYSPRINT DD  SYSOUT=* //SYSLIB   DD  DISP=SHR,DSN=your.vresults.library //SYSIN    DD  *   LISTLOAD MEMBER=DYL280V