PTF Cover Letter
PTF ( Program Temporary Fixes ) Cover letter
LIC-LOOP SAVE JOB HUNG WITH TASK LDDOIM LOOPING
Pre/Co-Requisite PTF / Fix List
REQ LICENSED PTF/FIX LEVEL
TYPE PROGRAM REL 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
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
-----------------------------------------------
BRMS save job hung and after no apparent activity, it was ended.
During the ENDJOB, it was noted that LDDOIM was consuming 138%
of the CPU. Tape write error recovery processing had been
enabled for the tape drive which was being used for the save.
CORRECTION FOR APAR MA39330 :
-----------------------------
The LDDOIM task was looping as the system tried to keep enough
resources available to recover from a media error if one was
encountered while writing to tape. The combination of a large
device cache and a large object which compacted very well led to
the task looping. The system code will be changed to prevent
the loop. This problem is unique to tape write error recovery
processing which is disabled by default and must be explicitly
enabled in order to be used.
CIRCUMVENTION FOR APAR MA39330 :
--------------------------------
Disable tape write error recovery processing.
Activation Instructions
None.
Special Instructions
None.
Default Instructions
THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.
Supersedes
PTF/FIX NO(S). APAR TITLE LINE
-------------- ------------------------------------------------------------
MF49966 LIC-MSGMCH5204 Save operation ends abnormally
MF48466 LIC-MSGMCH5204 Incorrect object identified after save error
MF49881 LIC-WAIT Job hangs while performing save operation
Summary Information
System.............................. | i |
Models.............................. | |
Release............................. | V7R1M0 |
Licensed Program............... | 5770999 |
APAR Fixed.......................... | View details for APAR MA39330 |
Superseded by:...................... | View fix details for PTF MF61797 |
Recompile........................... | N |
Library............................. | QSYS |
MRI Feature ........................ | NONE |
Cum Level........................... | C1116710 |
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Modified date:
27 May 2010