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MF64922 - IPL-SRCB6005121 I/O Error DLPAR

PTF ( Program Temporary Fixes ) Cover letter


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Abstract

IPL-SRCB6005121 I/O Error DLPAR


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
TR   5770999  V7R3M0    MF99204   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 partition terminates with a B6005121, usually with no apparent
cause.

CORRECTION FOR APAR 'MA47042' :
-------------------------------
This is only a problem on certain Power7 servers.  It is most
likely to occur when running release V7R2M0 TR8 (Tech Refresh 8)
or V7R3M0 TR4.  The problem occurs when I/O error recovery runs.
The partition obtains incorrect DMA address space information
during device recovery.  The information has been corrected.

The problem is only known to affect devices on buses 10, 11, 12,
and 13 on these servers.  In particular, note that buses 10 and
12 are only supported in a dual storage controller
configuration, i.e. buses 10 and 12 should be assigned to a
partition together.  If only bus 10 or 12, but not the other, is
assigned to a partition, it can cause internal I/O errors.
Without this PTF, that can lead to partition termination.

The likelihood of encountering this problem is very
unpredictable.  Customers may wish to avoid interrupting normal
business operations to apply this fix if the Product Activity
Log indicates no recent hardware issues for I/O devices, on
buses 10-13 in particular.  Customers on Power7 servers should
not attempt any adapter concurrent replacement or Dynamic
Logical Partitioning changes until this PTF is applied.

CIRCUMVENTION FOR APAR 'MA47042' :
----------------------------------
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 MA47042
Superseded by:...................... View fix details for PTF MF99206
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C8242730


System i Support

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Document information

More support for: i family

Software version: V7R3M0

Operating system(s): OS/400

Reference #: MF64922

Modified date: 25 April 2018