A fix is available
APAR status
Closed as program error.
Error description
Storage overlay occurred at XSLOT_FREECHAIN for CCBX FOR SSAM. The corrupted free CCBX block is then successfully reallocated. Its corrupted forward pointer is moved to XSLOT_FREECHAIN and caused multiple ABEND0C4. The overlaid blocks are owned by DSN3AUCM. . Possible ABEND0C4s are ABEND0C4 RC00000004 or RC00000010 from DSNSVSFB OFFSET03DA Possible DSNL033I DSNLCINI DDF TERMINATION SCHEDULED DUE TO DETECTION OF ABEND 0C4 REASON 00000000 and abend 0C4 is out of DSNQLINA or DSNLAGNX Additional keywords and symptoms: ******************************** ABEND0C4 DSNLQINA OFFSET15CC ABEND0C4 DSNLAGNX OFFSET05AC
Local fix
N/A
Problem summary
**************************************************************** * USERS AFFECTED: All DB2 for z/OS V11 users. * **************************************************************** * PROBLEM DESCRIPTION: A storage overlay or ABEND0C4 may occur * * on a freed CCBX pool block. The CCBX * * had been in use but was freed when * * the abend or overlay occurs. * **************************************************************** * RECOMMENDATION: * **************************************************************** A storage overlay or ABEND0C4 may occur on a freed CCBX pool block. The CCBX had been in use but was freed when the ABEND0C4 or storage overlay occurs. Module DSN3AUCN or DSNSVSFB may be executing when the ABEND0C4 or storage overlay occurs. DB2OVRLAY/K
Problem conclusion
Module DSN3ID30 has been updated to verify that the CCBX pool block has been obtained. Other DB2 modules have been updated to verify that the CCBX block is valid before trying to set end user client fields in the CCBX.
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PI27998
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2014-10-20
Closed date
2014-12-18
Last modified date
2016-01-21
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI24047
Modules/Macros
DSNXERD DSN3AUCM DSN3AUCN DSN3CT30 DSN3EOM0 DSN3ID30 DSN3ID80 DSN3SI30 DSN3TM00
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
RB10 PSY UI24047
UP15/01/08 P F501
Fix is available
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Document Information
Modified date:
31 July 2023