203E

Unexpected IUCV return code <rc> at x’<hex>‘ into module “<module>“

Reason

The service machine received a nonzero return code on an IUCV call. If the return code is 02, it probably resulted from an operation exception while performing an STNSM instruction. Because of the operation exception, CA ACF2 for z/VM closed the service machine console log and took a VMDUMP. STNSM is a 370 instruction that requires ECMODE set to ON in the service machine directory entry.

<rc>: The IUCV return code
<hex>: The hex code
<module>: The link register offset from module start.

Action

Set ECMODE ON for the service machine. For return codes other than 02, contact CA Support.