A fix is available
APAR status
Closed as program error.
Error description
CSQX053E with FFST xcsCheckPool occurs when there is a failure sending an API response in rriMQIServerCall as indicated by message CSQX206E. rriMQIServerCall may allocate a new buffer for sending the API response, and this buffer does not get released if the send fails. This results in the FFST in xcsFreeOwnedBuffers some time later (only when the conversation control block gets reused) or an FFST in xcsCheckPool (if the CSQXDBG DD card is present).
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 * * Release 1 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: CSQX053E message is issued indicating * * snapdump by various functions such as * * xcsFreeOwnedBuffers, xcsCheckPool, * * xcsCheckPoolGroup, ccxFreeMem. In * * addition, an abend S0C4 may occur in * * CSQXRCTL.CSQXBPCS following the FFST. * **************************************************************** * RECOMMENDATION: * **************************************************************** A temporary buffer is allocated and cached by the server when sending a flow to the SVRCONN-attached client. If an error occurs during the network send then the buffer is not correctly freed and is maintained in the cache. This eventually causes problems and is reported via an FFST.
Problem conclusion
SVRCONN processing has been amended to ensure that the buffer is freed even if the network send operation fails. 100Y CMQXRSRV
Temporary fix
Comments
APAR Information
APAR number
PI06313
Reported component name
WMQ Z/OS V7
Reported component ID
5655R3600
Reported release
100
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2013-11-18
Closed date
2014-02-26
Last modified date
2014-05-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
IV55698 UI15471
Modules/Macros
CMQXRSRV
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
R100 PSY UI15471
UP14/04/08 P F404
Fix is available
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Document Information
Modified date:
02 May 2014