Fixes are available
APAR status
Closed as program error.
Error description
A WebSphere MQ version 7 client issues an MQGET which sometimes will fail with an access violation, resulting in an FDC being generated for probe id XC130031. The function stack from the FDC file shows: MQM Function Stack ImqQueue::get ImqQueue::genericGet MQGET MQGET reqMakeCall xcsFFST ADDITIONAL KEYWORDS: intermittent occasional get memory overwrite MQMD pointer buffer overlaid overwritten 0xC0000005 EXCEPTION_ACCESS_VIOLATION (C0000005)
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users of WebSphere MQ v7 C and C++ clients which get messages from WebSphere MQ v7 queue managers. Platforms affected: All Distributed (iSeries, all Unix and Windows) **************************************************************** PROBLEM SUMMARY: An internal pointer is used to point to the headers within message. The problem occurs when an attempt is made by WebSphere MQ to access the PutApplType field of the MQMD header after the pointer has been changed to point to the next header of the message.
Problem conclusion
The program logic was corrected so that the correct pointer is used to access the PutApplType field of the MQMD header. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: v7.0 Platform Fix Pack 7.0.1.0 -------- -------------------- Windows tbc_p700_0_1_3 AIX tbc_p700_0_1_3 HP-UX (PA-RISC) tbc_p700_0_1_3 HP-UX (Itanium) tbc_p700_0_1_3 Solaris (SPARC) tbc_p700_0_1_3 Solaris (x86-64) tbc_p700_0_1_3 iSeries N/A Linux (x86) tbc_p700_0_1_3 Linux (x86-64) tbc_p700_0_1_3 Linux (zSeries) tbc_p700_0_1_3 Linux (Power) tbc_p700_0_1_3 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available, information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IC66542
Reported component name
WMQ WINDOWS V7
Reported component ID
5724H7220
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-02-22
Closed date
2010-03-24
Last modified date
2010-03-25
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
WMQ WINDOWS V7
Fixed component ID
5724H7220
Applicable component levels
R700 PSY
UP
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Document Information
Modified date:
31 March 2023