A fix is available
APAR status
Closed as program error.
Error description
The CHIN is processing the PCF response for an MQCMD_INQUIRE_CHANNEL for an SVRCONN channel This channel has a receive-exit called 'CML§V2R7'. When the CHIN tries to convert 'CML§V2R7' from ccsid 1141 to 1208, it requires expansion of the output buffer, this is not handled correctly by the conversion code, which can result in the loop with CSQX068I being issued. Systrace shows a loop in CSQXGETS. The chinitlog shows a lot messages like: +CSQX068I CSQXBPSG Channel initiator has scavenged 24 MB of transmission buffers
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 * * Release 1 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: When using channel exits with special * * characters, the CHINIT issues message * * CSQX068I repeatedly and PCF message * * responses are not sent. This occurs * * when the PCF request or response * * message contains a MQCFSL structure * * (string-list). * * CSQX004I messages show an increase in * * storage used by the CHINIT over time. * **************************************************************** * RECOMMENDATION: * **************************************************************** When processing the PCF message, the channel exit lists are converted into CCSID 1208. If there is a special character in one of the exit names, such as an '@', the converted string is too long for the output area. The conversion method returns CSQA_CONVERTED_BUFFER_TOO_BIG and the buffer should be expanded. The code however does not increase the output buffer length, even though larger buffers are requested. A loop occurs until the buffer requested is 100Mb, which is the maximum allowed.
Problem conclusion
The code was changed to correctly increase the output character field length, allowing the PCF message to be processed correctly. 100Y CSQAADSL
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PM82779
Reported component name
WMQ Z/OS V7
Reported component ID
5655R3600
Reported release
100
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2013-02-14
Closed date
2013-04-25
Last modified date
2013-07-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK93801
Modules/Macros
CSQAADSL
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
R100 PSY UK93801
UP13/06/14 P F306
Fix is available
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Document Information
Modified date:
03 July 2013