Fixes are available
APAR status
Closed as program error.
Error description
The problem happens when 2 or more IF statements, containing LIKE or MATCH operands are in a row. The logic didn't reset a temporary flag, and since these statement level temporary variables are redefined storage, the 2nd IF statement would actually pick up the positive result from the 1st IF statement. This is because the logic was not resetting the value. By placing another statement between these IF statements, it could cause the logic to work, because the extra non-IF statement might have also had a temporary variable that was causing the redefined storage to get reset, enabling the subsequent IF statement to then work.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * Incorrect results from LIKE/MATCHES processing can occur * * with embedded IF statements * **************************************************************** * PROBLEM DESCRIPTION: * * If an IF statement contains a LIKE/MATCHES operand and has * * another IF statement immediately within the first one, then * * it is possible that the results of the subsequent IF * * statements can pick up the result from the previous ones. * * This is because the result flag was not being reset and * * since EGL statement temporary variables redefine each other, * * the memory might have been overlaid causing false positive * * results. * **************************************************************** * RECOMMENDATION: * ****************************************************************
Problem conclusion
The memory is now initialized during the IF statement.
Temporary fix
Comments
APAR Information
APAR number
PI96908
Reported component name
RATL BUS DEV
Reported component ID
5724S5000
Reported release
950
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-04-18
Closed date
2019-01-18
Last modified date
2019-01-18
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
RATL BUS DEV
Fixed component ID
5724S5000
Applicable component levels
R911 PSY
UP
R950 PSY
UP
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Document Information
Modified date:
18 October 2021