APAR status
Closed as fixed if next.
Error description
Various errors relating to bad MRCB or MBCB control blocks. MRCBPTR or MBCBPTR is bad in the stacks of either DFHTDB or DFHTDRM . Symptoms include: DFHTD0001 reporting abend0C4 in DFHTDB ( at base level ) at offset 58C6 because a bad rpl_p because of a bad MRCB_RPL_P because of a bad MRCB . . Abend0C4 in DFHTDRM ( at level UK44630 ) at offset 53C6 in routing BCBCHN because of a bad MBCB . . Abend0C4 in DFHTDRM at offset 3BE . . These problem happen if the aftermath of an abend within DFHTDRM which drives TDRM's recovery routing TDRMREC . There can be an abend0C4 within control of TDRMREC because MRCBPTR and MBCBPTR weren't initially cleared and can therefore contain residual values .
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All. * **************************************************************** * PROBLEM DESCRIPTION: MRCABCN1 chain gets corrupted if * * EXEC CICS SYNCPOINT is issued with an * * invalid TDRM work token. * **************************************************************** * RECOMMENDATION: * **************************************************************** If DFHTDRM is called due to an EXEC CICS SYNCPOINT call with an invalid TDRM work token then TDRM may program check. This will lead to TDRMREC being called and may result in residual data being placed on the unallocated MRCB and MBCB chains. Additional Keywords: MRCAFCN1 MRCBBCHN MRCBFCHN MBCAFCN2 MBCAFCN2 MBCABCN2 MBCAFCN1 MBCABCN1 MBCBFCHN MBCBBCHN
Problem conclusion
Temporary fix
Comments
This APAR is being closed FIN with concurrence from the submitting customer. This means that a fix to this APAR is expected to be delivered from IBM in a release which is being developed at the time that the APAR was closed. The latest release of the product to exit development at the time this APAR was closed was: CICS Transaction Server for z/OS V4.1. PEG12244 PEG 12244
APAR Information
APAR number
PM08448
Reported component name
CICSTS V3 Z/OS
Reported component ID
5655M1500
Reported release
500
Status
CLOSED FIN
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-02-24
Closed date
2010-03-05
Last modified date
2010-03-05
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Applicable component levels
RZ66 PSN
UP
R500 PSN
UP
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Document Information
Modified date:
05 March 2010