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MF61844 - LIC-OTHER-WAIT IO REQUEST STUCK ON ERROR QUEUE.

PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-OTHER-WAIT IO REQUEST STUCK ON ERROR QUEUE.


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
CO   5770999  V7R3M0    MF61511   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

-----------------------------------------------
An IO request stuck on error queue may prevent forward progress
of subsequent IO requests.

CORRECTION FOR APAR MA45329 :
-----------------------------
During a dual controller uncontrolled takeover, there is the
possibility of leaving one failed I/O request on our error queue
indefinitely, causing a partition hang.


CIRCUMVENTION FOR APAR MA45329 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS IS A DELAYED PTF TO BE APPLIED AT IPL TIME.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF61830      LIC-DISK-OTHER-UNPRED Saving MSD on 4096 sector LS
   MF61630      LIC-DISK-UNPRED No DS8000 HyperSwap Failover
   MF61630      LIC-DISK-UNPRED CPPEA33 message during HyperSwap LUN switch
   MF61630      LIC-DISK-INCORROUT Incorrect disk path status displayed
   MF61341      LIC-DISK Unpredictable behavior for DS8000 HyperSwap Units
   MF61341      LIC-DISK-SRCB6005121 System crash when starting DS8000 Hyper
   MF61238      IPL-SRCB6005120-INCORROUT-D/T50B1 5887 ESM FW not being upda
   MF61154      IPL-SRCB6005121 Migration from NPIV to VSCSI LUNs may fail t
   MF60961      LIC-DISK Unable to vary on IASP with DS8000 HyperSwap units
   MF60961      LIC-DISK Unable to start DS8000 HyperSwap replication
   MF60961      LIC-DISK-UNPRED CANNOT ADD DS8000 DISK TO EXISTING ASP
   MF60961      LIC-DISK Disk initialization is not reporting intermediate c

Summary Information

System.............................. i
Models..............................
Release............................. V7R3M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA45329
Superseded by:...................... View fix details for PTF MF99206
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C6299730


System i Support

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Document information

More support for: i family

Software version: V7R3M0

Operating system(s): OS/400

Reference #: MF61844

Modified date: 09 May 2016