A fix is available
APAR status
Closed as program error.
Error description
ABEND04E RC00E50001 DSNIDM .DSNB1CPL+14C8 with PH26513/UI72556 applied ABEND04E RC00E50001 DSNIDM .DSNB1CPL+1542 with PH26513/UI72557 applied
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: * * All Db2 11 for z/OS and Db2 12 for z/OS * * data sharing users using GBPCACHE ALL * * table spaces or indexes, with PH26513 * * (UI72556 or UI72557) applied. * **************************************************************** * PROBLEM DESCRIPTION: * * ABEND04E RC00E50001 * * DSNIDM .DSNB1CPL+14C8 with * * PH26513/UI72556 applied, * * ABEND04E RC00E50001 * * DSNIDM .DSNB1CPL+1542 with * * PH26513/UI72557 applied. * **************************************************************** * RECOMMENDATION: * * Apply corrective PTF when available * **************************************************************** The exclusive castout quiesce latch has been changed to be at the partition level by the fix for PH26513, and it shares the PB0 latch recovery pointer with the partition latch. The ABEND04E RC00E5001 may occurr during the GBP-dependent cpnversion of a pageset or partition defined with the GBPCACHE ALL option because this latch was requested when it was already held. When converting pageset or partition from GBP-depedent to non GBP-depedent, the exclusive castout quiesce latch will be acquired. This process needs to cast out all the pages from the object and possibly purge them from the GBP. For table spaces or indexes defined with the GBPCACHE ALL option, Db2 also caches clean pages and acquires the partition latch when removing clean pages from the GBP. Thus the PB0 latch recovery pointer could have been cleared after returning to the GBP-dependent conversion. This will drive Db2 to obtain the exclusive castout quiesce latch again and cause the ABEND04E RC00E50001.
Problem conclusion
Db2 code has been modified to not clear the PB0 latch recovery pointer when releasing the partition latch if the exclusive castout quiesce latch is being held.
Temporary fix
Comments
APAR Information
APAR number
PH32429
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
B10
Status
CLOSED PER
PE
YesPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-12-07
Closed date
2021-01-19
Last modified date
2021-02-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
010PC2 010PC2 UI73532 UI73533
Modules/Macros
DSNB5DEL DSNB1LRR
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Platform":[{"code":"PF054","label":"z\/OS"}],"Version":"11.0"}]
Document Information
Modified date:
02 February 2021