A fix is available
APAR status
Closed as program error.
Error description
The problem is in module DFSCVTM0. The area being used for the save area appears to have been FreeMained. This is due to DFSRDD00 not restoring save area forward ptr after CHECK macro.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: IMS V11 customers using the RDDS. * **************************************************************** * PROBLEM DESCRIPTION: ABEND0C4 in DFSSTKMG using RDDS. * **************************************************************** * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF * **************************************************************** Save sets within the IMS prechained save area are passed to I/O services and may return with the save area forward pointer altered. This may validly occur when calling routines outside of IMS. Called routines commonly get a 'next' save area and point to it with the forward pointer in the save area that the routine was passed. There is no guarantee that the forward pointer will be restored upon return to IMS. In this case, the CHECK macro was called from DFSRDD00 under circumstances that led to a forward pointer being set to the CHECK routine's getmained save area and was left pointing to it after CHECK freemained it and returned to IMS. IMS attempted to use the forward pointer to address a save area to store registers and an 0C4 occurred because it had been freed.
Problem conclusion
GEN: KEYWORDS: *** END IMS KEYWORDS *** Code was added to DFSRDD00 to save and restore the IMS savearea's forward pointer around the CHECK macro calls.
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PM11893
Reported component name
IMS V11
Reported component ID
5635A0200
Reported release
100
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2010-04-08
Closed date
2010-07-27
Last modified date
2010-08-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK59193
Modules/Macros
DFSRDD00
Fix information
Fixed component name
IMS V11
Fixed component ID
5635A0200
Applicable component levels
R100 PSY UK59193
UP10/07/29 P F007
Fix is available
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Document Information
Modified date:
02 August 2010