Basis Errors and Solutions

IBM i: Overwriting when determining communication data

August 1, 2009 at 11:43 am

[AS/400] [Communication] [determining] [i] [i5/OS] [iSeries] [just communication] [OS400] [overwriting] [System]

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Symptom

SAPOSCOL ends due to a termination, and MCH3601 is displayed in the function AiUpCall in the job log.
Other terms

AS/400, OS400, system i, i5/OS, iSeries
Reason and Prerequisites

When determining the communication data, an internal memory is created that is too small. If this internal memory is filled gradually during the runtime of SAPOSCOL, the system writes data beyond the end of the buffer. The following buffer is destroyed as a result, and the program SAPOSCOL terminates with a dump.
Solution

CAUTION: The corrections consist of two parts, both of which must be implemented. If you imported only one package, terminations may still occur due to different views of the buffer from both program parts.
Apply the following patches with at least the patch levels specified below:
SAP Release 640: SAPOSCOL patch level 100 and DW patch level 293
SAP Release 700: SAPOSCOL patch level 75 and DW patch level 151
SAP Release 701: SAPOSCOL patch level 18 and ILE patch level 53
SAP Release 710: SAPOSCOL patch level 36 and ILE patch level 161
SAP Release 711: SAPOSCOL patch level 12 and ILE patch level 48