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MF65208 - LIC-OTHER-WAIT DEADLOCK CONDITION DUE TO CONTENTION ON RESID

PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-OTHER-WAIT DEADLOCK CONDITION DUE TO CONTENTION ON RESID


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
TR   5770999  V7R3M0    MF99205   00/00    0000
PRE  5770999  V7R3M0    MF65207   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

-----------------------------------------------
Deadlock condition due to contention on the resident stack pool
while waiting for I/O completions. The outstanding I/O will not
complete until I/O error recovery completes,  however a task
used for I/O error recovery can not acquire a resident stack to
run on.

CORRECTION FOR APAR MA47215 :
-----------------------------
Licensed Internal Code will be changed to allow a task needed by
the I/O error path to run on a reserved stack when using methods
that require a stack switch to a pool stack. This will allow I/O
error recovery to complete even when the normal stack pool is
depleted.

CIRCUMVENTION FOR APAR MA47215 :
--------------------------------
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
--------------  ------------------------------------------------------------
     NONE

Summary Information

System.............................. i
Models..............................
Release............................. V7R3M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA47215
Superseded by:...................... View fix details for PTF MF99207
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C9116730


IBM i Support

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Document information

More support for: i family

Software version: V7R3M0

Operating system(s): OS/400

Reference #: MF65208

Modified date: 23 August 2018