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High Impact / Highly Pervasive APAR IJ53478 VIO client I/O may hang or fail

Notification


Risk classification

HIPER (High Impact and/or Pervasive)

Risk categories

System Outage

Affected Domain

VIOS 4.1.1.0

Abstract

VIO client I/O may hang or fail

Description

On VIOS 4.1.1.0, VIO client I/O may hang, escalating to path loss and potential I/O failures. We have seen this mainly with Linux clients running high I/O workloads, including SAP HANA.

# pwd
/Repertoire_Efixes

# ls
IJ53478s0c.250210.VIOS4.1.1.0.epkg.Z

IJ53478s0c.250210.VIOS4.1.1.0.epkg.Z.sig
# emgr -pe IJ53478s0c.250210.VIOS4.1.1.0.epkg.Z   # With 'p' to Preview
*******************************************************************************
EFIX MANAGER PREVIEW START
*******************************************************************************

+-----------------------------------------------------------------------------+
Efix Manager Initialization
+-----------------------------------------------------------------------------+
Initializing log /var/adm/ras/emgr.log ...
Efix package file is: /AXIS/admintools/manapp/tools/Efixes/VIOs4.1.1.0/IJ53478s0c.250210.VIOS4.1.1.0.epkg.Z
MD5 generating command is /usr/bin/csum
MD5 checksum is 3b082af1ae940ea770dc947ad1a76f9b
Accessing efix metadata ...
Processing efix label "IJ53478s0c" ...
Verifying efix control file ...

+-----------------------------------------------------------------------------+
Installp Prerequisite Verification
+-----------------------------------------------------------------------------+
Verifying prerequisite file ...
Checking prerequisites ...

Prerequisite Number: 1
Fileset: devices.vdevice.IBM.vfc-server.rte
Minimal Level: 7.3.3.0
Maximum Level: 7.3.3.0
Actual Level: 7.3.3.0
Type: PREREQ
Requisite Met: yes

All prerequisites have been met.

+-----------------------------------------------------------------------------+
Processing APAR reference file
+-----------------------------------------------------------------------------+
ATTENTION: Interim fix is enabled for automatic removal by installp.

+-----------------------------------------------------------------------------+
Efix Attributes
+-----------------------------------------------------------------------------+
LABEL: IJ53478s0c
PACKAGING DATE: Mon Feb 10 06:45:41 CST 2025
ABSTRACT: APA IJ53478
PACKAGER VERSION: 7
VUID: 00C993804B00021006024025
REBOOT REQUIRED: yes
BUILD BOOT IMAGE: yes
LU CAPABLE: yes
PRE-REQUISITES: yes
SUPERSEDE: no
PACKAGE LOCKS: no
E2E PREREQS: no
FIX TESTED: no
ALTERNATE PATH: None
EFIX FILES: 1

Install Scripts:
PRE_INSTALL: no
POST_INSTALL: no
PRE_REMOVE: no
POST_REMOVE: no

File Number: 1
LOCATION: /usr/lib/drivers/vfc_host
FILE TYPE: Standard (file or executable)
INSTALLER: installp
SIZE: 1648
ACL: DEFAULT
CKSUM: 49543
PACKAGE: devices.vdevice.IBM.vfc-server.rte
MOUNT INST: no

+-----------------------------------------------------------------------------+
Efix Description
+-----------------------------------------------------------------------------+
========================== EFIX DESCRIPTION =============================
IJ53478 - CLIENT IO MAY HANG OR FAIL
=========================================================================

+-----------------------------------------------------------------------------+
Efix Lock Management
+-----------------------------------------------------------------------------+
Checking locks for file /usr/lib/drivers/vfc_host ...

All files have passed lock checks.

+-----------------------------------------------------------------------------+
Space Requirements
+-----------------------------------------------------------------------------+
Checking space requirements ...

Space statistics (in 512 byte-blocks):
File system: /usr, Free: 6188840, Required: 5030, Deficit: 0.
File system: /tmp, Free: 9955368, Required: 71295, Deficit: 0.

+-----------------------------------------------------------------------------+
Reboot Processing
+-----------------------------------------------------------------------------+

*** NOTICE ***
This efix package requires the target system to be rebooted after the current
operation is complete. It is recommended that you reboot the target system as
soon as possible after installation to avoid disruption of current functionality.

*******************************************************************************
EFIX MANAGER PREVIEW END
*******************************************************************************

+-----------------------------------------------------------------------------+
Operation Summary
+-----------------------------------------------------------------------------+
Log file is /var/adm/ras/emgr.log

EPKG NUMBER LABEL OPERATION RESULT
=========== ============== ================= ==============
1 IJ53478s0c INSTALL PREVIEW SUCCESS

ATTENTION: system reboot will be required by the actual (not preview) operation.
Please see the "Reboot Processing" sections in the output above or in the
/var/adm/ras/emgr.log file.

Return Status = SUCCESS

# emgr -e IJ53478s0c.250210.VIOS4.1.1.0.epkg.Z  # To install 
+-----------------------------------------------------------------------------+
Efix Manager Initialization
+-----------------------------------------------------------------------------+
Initializing log /var/adm/ras/emgr.log ...
Efix package file is: /AXIS/admintools/manapp/tools/Efixes/VIOs4.1.1.0/IJ53478s0c.250210.VIOS4.1.1.0.epkg.Z
MD5 generating command is /usr/bin/csum
MD5 checksum is 3b082af1ae940ea770dc947ad1a76f9b
Accessing efix metadata ...
Processing efix label "IJ53478s0c" ...
Verifying efix control file ...

+-----------------------------------------------------------------------------+
Installp Prerequisite Verification
+-----------------------------------------------------------------------------+
Verifying prerequisite file ...
Checking prerequisites ...

Prerequisite Number: 1
Fileset: devices.vdevice.IBM.vfc-server.rte
Minimal Level: 7.3.3.0
Maximum Level: 7.3.3.0
Actual Level: 7.3.3.0
Type: PREREQ
Requisite Met: yes

All prerequisites have been met.

+-----------------------------------------------------------------------------+
Processing APAR reference file
+-----------------------------------------------------------------------------+
ATTENTION: Interim fix is enabled for automatic removal by installp.

+-----------------------------------------------------------------------------+
Efix Attributes
+-----------------------------------------------------------------------------+
LABEL: IJ53478s0c
PACKAGING DATE: Mon Feb 10 06:45:41 CST 2025
ABSTRACT: APA IJ53478
PACKAGER VERSION: 7
VUID: 00C993804B00021006024025
REBOOT REQUIRED: yes
BUILD BOOT IMAGE: yes
LU CAPABLE: yes
PRE-REQUISITES: yes
SUPERSEDE: no
PACKAGE LOCKS: no
E2E PREREQS: no
FIX TESTED: no
ALTERNATE PATH: None
EFIX FILES: 1

Install Scripts:
PRE_INSTALL: no
POST_INSTALL: no
PRE_REMOVE: no
POST_REMOVE: no

File Number: 1
LOCATION: /usr/lib/drivers/vfc_host
FILE TYPE: Standard (file or executable)
INSTALLER: installp
SIZE: 1648
ACL: DEFAULT
CKSUM: 49543
PACKAGE: devices.vdevice.IBM.vfc-server.rte
MOUNT INST: no

+-----------------------------------------------------------------------------+
Efix Description
+-----------------------------------------------------------------------------+
========================== EFIX DESCRIPTION =============================
IJ53478 - CLIENT IO MAY HANG OR FAIL
=========================================================================

+-----------------------------------------------------------------------------+
Efix Lock Management
+-----------------------------------------------------------------------------+
Checking locks for file /usr/lib/drivers/vfc_host ...

All files have passed lock checks.

+-----------------------------------------------------------------------------+
Space Requirements
+-----------------------------------------------------------------------------+
Checking space requirements ...

Space statistics (in 512 byte-blocks):
File system: /usr, Free: 6188840, Required: 5030, Deficit: 0.
File system: /tmp, Free: 9955368, Required: 71295, Deficit: 0.

+-----------------------------------------------------------------------------+
Efix Installation Setup
+-----------------------------------------------------------------------------+
Unpacking efix package file ...
Initializing efix installation ...

+-----------------------------------------------------------------------------+
Efix State
+-----------------------------------------------------------------------------+
Setting efix state to: INSTALLING

+-----------------------------------------------------------------------------+
File Archiving
+-----------------------------------------------------------------------------+
Saving all files that will be replaced ...
Save directory is: /usr/emgrdata/efixdata/IJ53478s0c/save
File 1: Saving /usr/lib/drivers/vfc_host as EFSAVE1 ...

+-----------------------------------------------------------------------------+
Efix File Installation
+-----------------------------------------------------------------------------+
Installing all efix files:
Installing efix file #1 (File: /usr/lib/drivers/vfc_host) ...
Successfully updated the Kernel Authorization Table.
Successfully updated the Kernel Role Table.
Successfully updated the Kernel Command Table.
Successfully updated the Kernel Device Table.
Successfully updated the Kernel Object Domain Table.
Successfully updated the Kernel Domains Table.
Successfully updated the Kernel RBAC log level.

Total number of efix files installed is 1.
All efix files installed successfully.

+-----------------------------------------------------------------------------+
Package Locking
+-----------------------------------------------------------------------------+
Processing package locking for all files.
File 1: locking installp fileset devices.vdevice.IBM.vfc-server.rte.

All package locks processed successfully.

+-----------------------------------------------------------------------------+
Reboot Processing
+-----------------------------------------------------------------------------+

*** NOTICE ***
This efix package requires the target system to be rebooted after the current
operation is complete. It is recommended that you reboot the target system as
soon as possible after installation to avoid disruption of current functionality.

+-----------------------------------------------------------------------------+
Efix State
+-----------------------------------------------------------------------------+
Setting efix state to: REBOOT REQUIRED

+-----------------------------------------------------------------------------+
Boot Image Processing
+-----------------------------------------------------------------------------+
Rebuilding boot image ...
bosboot: Boot image is 69660 512 byte blocks.
Successfully rebuilt boot image.

+-----------------------------------------------------------------------------+
Operation Summary
+-----------------------------------------------------------------------------+
Log file is /var/adm/ras/emgr.log

EPKG NUMBER LABEL OPERATION RESULT
=========== ============== ================= ==============
1 IJ53478s0c INSTALL SUCCESS

ATTENTION: system reboot is required. Please see the "Reboot Processing"
sections in the output above or in the /var/adm/ras/emgr.log file.

Return Status = SUCCESS

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