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MF60101 - LIC-OTHER-WAIT STUCK TASK PREVENTS OTHERS FROM ACCESSING THE

PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-OTHER-WAIT STUCK TASK PREVENTS OTHERS FROM ACCESSING THE


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
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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

-----------------------------------------------
Many jobs are stuck in mutex wait.  No job can access the
Integrated File System (IFS) root directory.  The system becomes
unusable.

CORRECTION FOR APAR MA44497 :
-----------------------------
Thread A cannot complete its IFS operation due to an unexpected
failure logged in vl2B00A263.  All other threads that need to
access the root directory are stuck waiting for thread A to
complete its operation.
The root cause for the unexpected failure is a weak consistency
issue.  The Licensed Internal Code is modified to correct this
weak consistency issue.

An 'immediate' apply of this PTF will prevent future occurrences
of the problem, but will not correct a problem which has already
occurred.  If the problem already occurred, it would be
necessary to also perform an IPL of the partition after applying
the PTF, or to apply it  'delayed'.

CIRCUMVENTION FOR APAR MA44497 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


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............................. V7R2M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA44497
Superseded by:......................
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C5310720


System i Support

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Document information

More support for: i family

Software version: V7R2M0

Operating system(s): OS/400

Reference #: MF60101

Modified date: 22 May 2015