A fix is available
APAR status
Closed as program error.
Error description
ABEND0C4 EZBITSTO + x'23FA' running LUNS on TELNET. Caller was EZBTDPRM, called by EZBTMCTM TelnetGlobals are being freed on the LUNS in error.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All users of the IBM Communications Server * * for z/OS Version 2 Release 1 IP: Telnet * * 3270 Server Shared LU groups * **************************************************************** * PROBLEM DESCRIPTION: * * EZBTMCTM cleared the TelnetGlobals * * pointer when processing a new LUNR * * connection. This caused an abend * * trying to use the cleared pointer. * **************************************************************** * RECOMMENDATION: * * Apply PTF. * **************************************************************** The problem may be summmarized as follows: 1. The Telnet server acting as a LU name server(LUNS) became the active LUNS for the sysplex group. 2. A Telnet with shared LU name groups connected to the LUNS as a LU name requester(LUNR). The LUNR started sending in the LU name configuration. 3. The LUNS received the start of the configuration and attempted to free the TelnetGlobals area on thread 1. 4. A second LUNR connected and sent its profile data on thread 2. Thread 2 set the pointer to the TelnetGlobals area to zero. 5. Thread 1 attempted to use the TelnetGlobals pointer to free the storage, causing an abend.
Problem conclusion
Module EZBTMCTM is updated to not attempt to free the TelnetGlobals pointer when processing a LUNR profile.
Temporary fix
Comments
APAR Information
APAR number
PI17124
Reported component name
TCP/IP V3 MVS
Reported component ID
5655HAL00
Reported release
210
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-05-01
Closed date
2014-05-28
Last modified date
2014-07-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI18410
Modules/Macros
EZBTMCTM
Fix information
Fixed component name
TCP/IP V3 MVS
Fixed component ID
5655HAL00
Applicable component levels
R210 PSY UI18410
UP14/06/24 P F406
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.
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Document Information
Modified date:
01 July 2014