A fix is available
APAR status
Closed as program error.
Error description
Customer issued a /STO REG JOBNAME xxxxxx ABDUMP command against an MPP region which was in the middle of scheduling process. DFSASK00->DBFCPY00->DFSCBTS DDIR,OPTION=NOSER->DFSSCBT0-> DFSSBLK0. DFSSBLK0 obtains the BLKM latch unconditionally, and this latch is not recoverable. To prevent U0780, ABDUMP command must be defered if this latch is held. IMS needs to set issue a DFSXMWIN ABDUMP_SYNC around this process to defer U0474 abend until latch has been released.
Local fix
Don't issue ABDUMP command against a region in process of scheduling.
Problem summary
**************************************************************** * USERS AFFECTED: IMSFP V12 DEDB USERS. * **************************************************************** * PROBLEM DESCRIPTION: ABENDU0780 AFTER /STO REG ABDUMP * * COMMAND FOR REGION IN SCHEDULE * * PROCESS. BLKM LATCH HELD, DUE TO * * DFSCBTS DDIR FROM DBFCPY00. * **************************************************************** * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF * **************************************************************** This service correct an ABENDU0780 problem due to the command /STO REG JOBNAME xxxxxx ABDUMP issued against an MPP region which was in the middle of scheduling process and holding BLKM latch. DFSASK00->DBFCPY00->DFSCBTS DDIR,OPTION=NOSER->DFSSCBT0-> DFSSBLK0. DFSSBLK0 obtains the BLKM latch unconditionally, and this latch is not recoverable. To prevent U0780, ABDUMP command must be deferred if this latch is held.
Problem conclusion
GEN: KEYWORDS: *** END IMS KEYWORDS *** The following change has been made to correct the reported problem: DBFCPY00: Add code to issue DFSXMWIN SET CALLERID=ABDUMP_SYNC and DFSXMWIN RESET CALLERID=ABDUMP_SYNC around the DFSCBTS FIND DDIR request to reject /STO REGION ABDUMP command.
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PM78902
Reported component name
IMS V12
Reported component ID
5635A0300
Reported release
200
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2012-12-10
Closed date
2013-01-17
Last modified date
2013-02-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK91003
Modules/Macros
DBFCPY00
Fix information
Fixed component name
IMS V12
Fixed component ID
5635A0300
Applicable component levels
R200 PSY UK91003
UP13/01/24 P F301
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 Systems"}],"Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
14 December 2020