IBM Support

MF66925 - LIC-COMM-OTHER-SRCB6000302-UNPRED SYSTEM HALT DUE TO ERROR I

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-COMM-OTHER-SRCB6000302-UNPRED SYSTEM HALT DUE TO ERROR I


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
NONE



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.

SUBJECT TO ANY WARRANTIES WHICH CAN NOT BE EXCLUDED OR EXCEPT AS EXPLICITLY
AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
The ASCL-FAXLINE13 task halted the system after a LIC module
locked a gate and then tried to unlock the gate, but the gate
storage was corrupted. LIC log shows VL 1000220C shortly before
the halt, and the PAL has lots of B600FDC0 entries.

CORRECTION FOR APAR MA48112 :
-----------------------------
The 1000220C LIC log entry indicates that storage was deleted
twice. This occurred due to a timing window when ending the
ASCL-FAXLINE13 task. The FDCO PAL entries indicate that multiple
Fax lines were unable to establish a connection and are
unrelated to this problem.

This fix corrects the timing window when ending the task and
prevents storage from being deleted twice.

This problem can only occur on a system that has an Async or PPP
line description that is configured with RSRCNAME(*ETHDEVSVR).
The problem can occur when the Async or PPP line is varied off,
or when the Async or PPP line goes through error recovery.

CIRCUMVENTION FOR APAR MA48112 :
--------------------------------
None.


DESCRIPTION OF PROBLEM FIXED FOR APAR MA48119 :
-----------------------------------------------
When using Fax over an Async line description configured with
RSRCNAME(*ETHDEVSVR) a 0700 0560 LIC log entry showed that there
was heap storage that was not being deleted.

CORRECTION FOR APAR MA48119 :
-----------------------------
Heap storage is allocated when transmitting data over an Async
or PPP line description configured with RSRCNAME(*ETHDEVSVR).
However, that heap storage was not being deleted after the data
was transmitted. The heap storage was deleted when the Async or
PPP line description was varied off. This fix deletes the heap
storage after the data has been transmitted, without requiring
the line description to be varied off.

CIRCUMVENTION FOR APAR MA48119 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


To activate this fix after it is applied, any Async or PPP line
descriptions that specify RSRCNAME(*ETHDEVSVR) and are varied on must
varied off, then varied on again.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
     NONE

Summary Information

System..............................i
Models..............................
Release.............................V7R4M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA48112
View details for APAR MA48119
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C0121740


IBM i Support

IBM disclaims all warranties, whether express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. By furnishing this document, IBM grants no licenses to any related patents or copyrights. Copyright © 1996,1997,1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 IBM Corporation. Any trademarks and product or brand names referenced in this document are the property of their respective owners. Consult the Terms of use link for trademark information.

[{"Type":"MASTER","Line of Business":{"code":"LOB57","label":"Power"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SWG60","label":"IBM i"},"Platform":[{"code":"PF012","label":"IBM i"}],"Version":"7.1.0"},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG15V","label":"PTF Cover Letters - OS\/400 General"},"Component":"","ARM Category":[],"Platform":[{"code":"PF012","label":"IBM i"}],"Version":"V7R4M0","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
16 May 2020