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MF60715 - OSP-MSGCPI5938-D/T57D4-PAR-940XCOMASNC ASYNC LINE FAILS

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-MSGCPI5938-D/T57D4-PAR-940XCOMASNC ASYNC LINE FAILS


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED      PTF/FIX  LEVEL

TYPE PROGRAM  REL  NUMBER   MIN/MAX  OPTION
---- -------- ---  -------  -------  ------
TR   5770999  710  MF99011   00/00    0000



NOTICE:
-------
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APAR Error Description / Circumvention

-----------------------------------------------
An Async line description (CRTLINASC) using a communication
resource on a 57D4 WAN card goes to FAILED status.

The customer has an application using an Async line that
disconnects with message CPD6B92 (Break signal or interrupt
packet received while communicating with device XXXXXXXXX at
location XXXXXXXXX.). The Async line goes to FAILED status and
QHST contains message CPI5938 (Line xxxxxxxxxx failed. Recovery
in progress.). The error code contained in message CPI5938 is
E8C99999. The hardware resource for the line is on a CCIN 57D4
card.

A communications trace (STRCMNTRC) shows record status of
16001A20 "End of record character received" during normal
processing. The communications trace shows a record status of
16001A10 "Received record equals maximum receive buffer size"
when the error occurs.

A LIC Log with major code 0700 and minor code E8C9 is also
created when the problem occurs.

CORRECTION FOR APAR MA44936 :
-----------------------------
The Async line description is configured to use End-of-Record
characters with 1 additional character received after the
End-of-Record character is detected. Under certain conditions,
an End-of-Record character is not processed correctly, causing
the line to fail. This fix corrects the problem with
End-of-Record character processing.

CIRCUMVENTION FOR APAR MA44936 :
--------------------------------
Change the Async line description to either not use
End-of-Record characters, or set the number of trailing
characters after an End-of-Record character to zero.


Activation Instructions


None.




Special Instructions


After applying or removing this fix, vary off all Async line
descriptions on the system. Use the WRKCFGSTS *LIN *ASYNC command to
see the status of all Async lines on the system. The updated code will
be then be used when an Async line description is 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.............................V7R1M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA44936
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C6120710


System i Support

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Document Information

Modified date:
12 October 2015