A fix is available
APAR status
Closed as program error.
Error description
Abend 0C4 in IKTLTERM + X'4A4' at HVT61D0 level during reconnect processing.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All TSO users. * **************************************************************** * PROBLEM DESCRIPTION: ABEND0C4 in IKTLTERM during the * * reconnect processing. * **************************************************************** * RECOMMENDATION: * **************************************************************** This problem may be described as follows: 1. TSO user USER1 address space was in the reconnect status. 2. USER1 tried to Logon with the reconnect option. 3. IKTLOGR received a control to process the Logon reconnect processing. It issued WAIT macro to wait for the IKTLTERM process to complete the processing. 3. IKTLTERM received control to process the Logon reconnect processing. It issued STIMER macro to start the timer to allow the OPNDST to complete. 4. For some reason, OPNDST process was waiting for something. 5. Timer exit routine of IKTLTERM received control to cancel the USER1 address space. It issued LOCASCB macro to find the waiting address space of IKTLOGR. It found an address space control block. But it was not the address space of the waiting process of IKTLOGR. The address space of the waiting process of IKTLOGR was already terminated and it was not available. This caused the ABEND0C4 in IKTLTERM.
Problem conclusion
IKTLOGR has been changed to save the address of the address space control block (ASCB) in a TSBX. IKTLTERM has been changed to verify the address of the ASCB from LOCASCB with the saved address of ASCB in the TSBX before accessing the ASCB storage.
Temporary fix
Comments
APAR Information
APAR number
OA40631
Reported component name
VTAM V4 MVS/ESA
Reported component ID
569511701
Reported release
1D0
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2012-10-23
Closed date
2012-11-06
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:
UA67124 UA67125
Modules/Macros
IKTLOGR IKTLTERM
Fix information
Fixed component name
VTAM V4 MVS/ESA
Fixed component ID
569511701
Applicable component levels
Fix is available
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Document Information
Modified date:
04 February 2013