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MF63620 - LIC-COMM-TCPIP-WAIT TCP INTERFACE UNUSABLE

PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-COMM-TCPIP-WAIT TCP INTERFACE UNUSABLE


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
PRE  5770999  V7R3M0    MF61266   00/00    0000



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

-----------------------------------------------
TCP interface is unusable after network problem. QTCPWRK job
still shows active, but can't be ended. MSD analysis shows the
QTCPWRK job waiting on a gate held by an SK-ASC task that is
waiting on a WaitList.

CORRECTION FOR APAR MA46382 :
-----------------------------
A deadlock was occurring in a small timing window where the
connection Netstat was working on was also being accessed by
Telnet to send a Telnet session reject message. The deadlock has
been removed.

CIRCUMVENTION FOR APAR MA46382 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


********************************************************************
THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED
PTF HAS ALREADY BEEN APPLIED AND ITS SPECIAL INSTRUCTION FOLLOWED,
IT IS NOT NECESSARY TO FOLLOW THAT SPECIAL INSTRUCTION AGAIN.
********************************************************************

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF MF61745 :
=================================================

Job preconditions require that the Telnet server is ended to apply or
remove this PTF in immediate mode.  This includes all supersedes of
this PTF.

1. End the Telnet server with the command
ENDTCPSVR SERVER(*TELNET)
2. Apply or remove the PTF.
3. Re-start the Telnet server with the command
STRTCPSVR SERVER(*TELNET)

If the Telnet server cannot be ended with ENDTCPSVR SERVER(*TELNET), an
IPL is required to restart the Telnet server after this PTF has been
applied.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF62901      OSP-PERFM ERRANT TELNET CLIENT CAUSING FAULTING TO OCCUR
   MF62497      OSP-OTHER-PERFM TNSRIO* AND VTMT* TASKS LARGE BUFFER USE
   MF61930      TCPIP-TELNET Not logging SSL connection errors in QTVTELNET
   MF61881      OSP-UNPRED-TELNET SSL NOT WORKING
   MF61745      OSP-UNPRED-TELNET HUNG. END TELNET SERVER NOT WORKING
   MF61254      LIC-COMM-TCPIP-UNPRED TELNET USER PROFILE DISABLED

Summary Information

System.............................. i
Models..............................
Release............................. V7R3M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA46382
Superseded by:...................... View fix details for PTF MF64522
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C7283730


System i Support

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Document information

More support for: i family

Software version: V7R3M0

Operating system(s): OS/400

Reference #: MF63620

Modified date: 04 May 2017