PTF Cover Letter
PTF ( Program Temporary Fixes ) Cover letter
LIC-OTHER-THREADS-INCORROUT Unable to vary-on iSCSI NWSD RC1
Pre/Co-Requisite PTF / Fix List
REQ LICENSED PTF/FIX LEVEL
TYPE PROGRAM REL NUMBER MIN/MAX OPTION
---- -------- --- ------- ------- ------
TR 5770999 710 MF99004 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
-----------------------------------------------
A extremely small timing window (micro-seconds) exists where the
delete of iSCSI TargetNode Connection object happens at the same
time its destruct timer executes, thus calling the same function
at the same exact time (within micro-seconds of each other).
Therefore the two functions compete over releasing
links/resources and cause each other to halt processing, which
leaves the Connection objects around.
The problem is made evident by the following two LIC Logs being
generated at the same time:
5000 6512
1F00 0016
CORRECTION FOR APAR MA42085 :
-----------------------------
Code has been added to serialize this, so that only one can
process the release at a time.
CIRCUMVENTION FOR APAR MA42085 :
--------------------------------
None.
Activation Instructions
None.
Special Instructions
All iSCSI Network Server Descriptions (NWSDs) must be varied off before
applying this PTF.
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 MA42085 |
Superseded by:...................... | View fix details for PTF MF99011 |
Recompile........................... | N |
Library............................. | QSYS |
MRI Feature ........................ | NONE |
Cum Level........................... | C2279710 |
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Document Information
Modified date:
08 June 2012