A fix is available
APAR status
Closed as program error.
Error description
CHIN CHINIT abends with ABEND 5C6 00E50002 ABN=5C6-00E50002,LOC=CSQMLPLM.CSQMMTPR+000023CE . DUMP: ABN=5C6-00E50002,U=MQPDCHIN,C=W9700.800.ASMC-CSQVUNLX,M=CSQVLFRR ,LOC=CSQMLPLM.CSQMMTPR+00002386 . The MTME has been released by CSQMMTIN while CSQMMTPR (mark_msg_token processing) is waiting to obtain a latch on it.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All users of IBM MQ for z/OS Version 9 Release 0 * * Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: * * Application browsing messages from a queue using * * MQGMO_MARK_BROWSE_CO_OP or MQGMO_MARK_BROWSE_HANDLE can * * generate abend 5C6-00E50002 in CSQMMTPR. * **************************************************************** * RECOMMENDATION: * * N/A * **************************************************************** The access serialization of browse message marks is incorrect and it sometimes allows multiple threads to perform simultaneous updates of the same mark resulting in 5C6-00E50002 abend.
Problem conclusion
The serialization access to the MTME has been corrected preventing simultaneous updates to the same MTME.
Temporary fix
Comments
APAR Information
APAR number
PI68182
Reported component name
MQ Z/OS V9
Reported component ID
5655MQ900
Reported release
000
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-08-26
Closed date
2016-09-12
Last modified date
2016-11-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI40758
Modules/Macros
CSQEMTIN CSQMMTIN CSQMMTPR
Fix information
Fixed component name
MQ Z/OS V9
Fixed component ID
5655MQ900
Applicable component levels
R000 PSY UI40758
UP16/10/14 P F610
Fix is available
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Document Information
Modified date:
02 November 2016