A fix is available
APAR status
Closed as program error.
Error description
An IMS batch job gets an expected user abend4039. During the process of the user abend4039 the IMS batch job gets an abend S6C6 reason F30905. The S6C6 is not logged to the joblog, qmgrlog nor to the erep. It is only seen in the syslog.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 * * Release 0 Modification 1 and Release 1 * * Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: After the fix for PI19926 is applied, * * IMS transactions abending while * * connected to MQ are terminated at end * * of memory with abend code S6C6 reason * * F30905. * **************************************************************** * RECOMMENDATION: * **************************************************************** An IMS transaction abended while an MQ unit of work was inflight. After the application of PI19926, when the MQ resolve indoubt exit (CSQQRESV) is called in the IMS control region, it schedules resolve indoubt processing to abort or commit the unit of work as appropriate, however this results in the EB associated with the unit of work being associated with the control region rather than the dependent region. When the FEOT broadcast for the abending TCB in the dependent region is processed, CSQ3SSI1 incorrectly determines that the broadcast can be ignored because the EB is no longer associated with the abending TCB and address space. If the abending task was the last task connected to MQ in the dependent region, this results in the ASCE remaining allocated. CSQ3SSI1 detects the unexpected presence of the ASCE and calls memterm for the address space.
Problem conclusion
CSQ3SSI1 is changed to detect FEOT broadcasts for agents that have already been resolved by CSQQRESV running in the IMS control region, and ensure that the ASCE is correctly deallocated. 010Y 100Y CSQQRESV CSQ3EOT0 CSQ3ID80 CSQ3SSI1
Temporary fix
Comments
APAR Information
APAR number
PI43718
Reported component name
WMQ Z/OS V7
Reported component ID
5655R3600
Reported release
100
Status
CLOSED PER
PE
YesPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2015-06-25
Closed date
2015-09-30
Last modified date
2015-12-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI48459 UI31614 UI31643 UI32186
Modules/Macros
CSQQRESV CSQ3EOT0 CSQ3ID80 CSQ3SSI1
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
Fix is available
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Document Information
Modified date:
03 December 2015