A fix is available
APAR status
Closed as program error.
Error description
CHIN LOG: CSQX112E CSQXDISP Dispatcher process error, TCB=nnnnnnnn reason=0C4000-00000011 . DUMP TITLE: ssid,ABN=0C4-00000011,C=R3600.710.CHIN,M=CSQXDISP,LOC=CSQXRCTL. CSQXRMSS+024F2 . The failing instruction is 91FF E000 in rriFreeSess (CSQXRMSS) with storage for R14 not available.
Local fix
Set SHARECNV=0 on the SVRCONN to avoid the multi-conversation logic. See http://publib.boulder.ibm.com/infocenter/wmqv7/v7r1/topic/com.i bm.mq.doc/mi20280_.htm for impacts of doing this.
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 * * Release 1 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: Abend 0C4 occurs in CSQXRMSS or * * CSQXRERR when a client channel ends. * **************************************************************** * RECOMMENDATION: * **************************************************************** When the last conversation running on a multiplexed svrconn channel ends, rriAsyncConvControl is called to clean up control blocks associated with the channel. This routine incorrectly attempts to locate the rrxChannel using a pointer in the session, however this pointer is invalid and the storage it points to has already been freed. This can lead to the reported abend if the storage address is not accessible.
Problem conclusion
rriAsyncConvControl is changed to no longer reference the rrxChannel using the pointer in the session. In addition, rriCopySess is changed to prevent the address of the storage being copied in to other sessions prior to the storage being freed. 100Y CSQXRMAS CSQXRMSS
Temporary fix
Comments
APAR Information
APAR number
PM77473
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
2012-11-20
Closed date
2013-02-26
Last modified date
2013-05-06
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK92010
Modules/Macros
CSQXRMAS CSQXRMSS
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
R100 PSY UK92010
UP13/04/04 P F304
Fix is available
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Document Information
Modified date:
06 May 2013