IBM Support

High Impact / Highly Pervasive APAR IJ57286 IBM.SoftwareRM subsystem may kill all processes on an LPAR

Notification


Risk classification

HIPER (High Impact and/or Pervasive)

Risk categories

System Outage

Affected Domain

All LPARs hosted on systems that are managed by an HMC connected to IBM’s Cloud Management Console (CMC), and that CMC is run as part of Power Enterprise Pools (PEP) 2.0.

Abstract

IBM.SoftwareRM subsystem may kill all processes on an LPAR

Description

The RSCT subsystem, IBM.SoftwareRM, has a memory leak and will run out of memory after running for some time.
As the process approaches its memory limits, the error handling may result in unrelated processes on the LPAR getting killed.
This can only occur on systems that are managed by an HMC connected to IBM's Cloud Management Console (CMC), and that CMC is run as part of Power Enterprise Pools (PEP) 2.0.
We have typically seen this after IBM.SoftwareRM has been running for 2-3 months without restart.

Recommended Action

Affected AIX/VIOS Levels and Recommended Fixes
Minimum Affected LevelMaximum Affected LevelFixing LevelInterim Fix
AIX 7300-04
rsct.opt.softwarerm 3.3.4.0
AIX 7300-04
rsct.opt.softwarerm 3.3.4.1
AIX 7300-04-01
iFix
AIX 7300-03
rsct.opt.softwarerm 3.3.3.0
AIX 7300-03-02-2546
rsct.opt.softwarerm 3.3.3.0
AIX 7300-03-03
iFix
AIX 7300-02-04-2520
rsct.opt.softwarerm 3.3.3.0
AIX 7300-02-04-2520
rsct.opt.softwarerm 3.3.3.0
N/A
iFix
VIOS 4.1.2.0
rsct.opt.softwarerm 3.3.4.0
VIOS 4.1.2.0
rsct.opt.softwarerm 3.3.4.1
VIOS 4.1.2.10
iFix
VIOS 4.1.1.0
rsct.opt.softwarerm 3.3.3.0
VIOS 4.1.1.20
rsct.opt.softwarerm 3.3.3.0
VIOS 4.1.1.30
iFix
VIOS 4.1.0.0
rsct.opt.softwarerm 3.3.3.0
VIOS 4.1.0.40
rsct.opt.softwarerm 3.3.3.0
N/A
iFix

This table describes which active levels are affected and where to obtain fixes.

Before the APAR fix is available, an interim fix (iFix) is available for each affected level.
The available interim fixes might apply only to the latest Service Packs. If a custom interim fix is required, contact IBM Support.
The interim fixes can be downloaded from the same location by using HTTPS or FTPS.

Verify you have retrieved the fixes intact by following the instructions at Verifying AIX and VIOS Security and HIPER Fixes .

The checksums below were generated using the "openssl dgst -sha256 [filename]" command as the following:

openssl dgst -sha256filename
daf14e3f70770486715df47f7bf0229a89e5a8016aed468c43ab798b0a1fec2cIJ57520m1a.260302.AIX73TL04SP00.epkg.Z
9c735844478ed0f6845073b5b90a88c1f0a25f090bc3d840eba97eaa3a7fe398IJ57286m0a.260205.AIX73TL03SP00-02.epkg.Z
9c735844478ed0f6845073b5b90a88c1f0a25f090bc3d840eba97eaa3a7fe398IJ57286m0a.260205.AIX73TL02SP04.epkg.Z
daf14e3f70770486715df47f7bf0229a89e5a8016aed468c43ab798b0a1fec2cIJ57520m1a.260302.VIOS4.1.2.0.epkg.Z
9c735844478ed0f6845073b5b90a88c1f0a25f090bc3d840eba97eaa3a7fe398IJ57286m0a.260205.VIOS4.1.1.0-4.1.1.20.epkg.Z
9c735844478ed0f6845073b5b90a88c1f0a25f090bc3d840eba97eaa3a7fe398IJ57286m0a.260205.VIOS4.1.0.0-4.1.0.40.epkg.Z

Date first published

09 March 2026

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Document Information

Modified date:
10 April 2026

UID

ibm17262728

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