A fix is available
APAR status
Closed as program error.
Error description
The customer is running WMQ V7.1 in a 3-way QSG. They started to take the following recursive dumps when shutting down the queue manager. . CSQ1,ABN=0C4-00000011,U=SYSOPR ,C=R3600.710.ASMC-CSQVEUS3, M=CSQVEUS3,LOC=CSQJL002.CSQJRE08+00000000 . The change team has taken a look at the dump for the 0C4 in CSQJRE08 and they can see the cause of the problem. A JR008C TCB (archive log read) service task has been left around due to abends 5C6-00E20013 and 5C6-00E20014. During shutdown, CSQVASTM detects the JR008C TCB and invokes CSQVDST0 to abend the TCB with S6C6 00E50070. During recovery processing for the S6C6 abend, the operating system tries to invoke ESTAE CSQJRE08. However, load-moulde CSQJL002, which includes CSQJRE08, has just been DELETE'd by CSQYSTRM, and hence the 0C4 occurs.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS version 7 * * Release 1 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: The queue manager abends with S0C4 * * in CSQJRE08 during shut-down. * **************************************************************** * RECOMMENDATION: * **************************************************************** A JR008C TCB (archive log read) service task has been left around due to previous issues in the queue manager. During shut-down, CSQVASTM detects the JR008C TCB and invokes CSQVDST0 to abend the TCB with S6C6 00E50070. During recovery processing for the S6C6 abend, the operating system tries to invoke ESTAE CSQJRE08. However, load-moulde CSQJL002, which includes CSQJRE08, has just been deleted by CSQYSTRM, and hence the 0C4 occurs.
Problem conclusion
The shut-down code has been changed to correctly terminate the archive log read service tasks. 100Y CSQJT001
Temporary fix
Comments
APAR Information
APAR number
PI10879
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
2014-02-03
Closed date
2014-05-15
Last modified date
2014-07-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI18005
Modules/Macros
CSQJT001
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
R100 PSY UI18005
UP14/06/27 P F406
Fix is available
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Document Information
Modified date:
01 July 2014