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Bug 1957819 - Disable unused UIO modules in RHEL9 kernel config
Summary: Disable unused UIO modules in RHEL9 kernel config
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: kernel
Version: 9.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: beta
: ---
Assignee: Aristeu Rozanski
QA Contact: Linqing Lu
URL:
Whiteboard:
Depends On:
Blocks: 2020265
TreeView+ depends on / blocked
 
Reported: 2021-05-06 14:28 UTC by Stephen Tweedie
Modified: 2022-05-17 15:42 UTC (History)
5 users (show)

Fixed In Version: kernel-5.13.0-0.rc3.25.el9
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-05-17 15:38:02 UTC
Type: Enhancement
Target Upstream Version:
Embargoed:
pm-rhel: mirror+


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2022:3907 0 None None None 2022-05-17 15:38:28 UTC

Description Stephen Tweedie 2021-05-06 14:28:25 UTC
Description of problem:
In working through a recent UIO BZ in 8.4/8.5, we needed to update ownership of UIO modules for RHEL8.  Part of this was identifying which UIO kmods are actively needed.

We know that we need 

CONFIG_UIO #Dependency for below configs

CONFIG_UIO_PCI_GENERIC # (Used by DPDK over UIO)
                       # This one is to support PCI bus but not
                       # recommended. Drop-in replacement is vfio with
                       # enable_unsafe_noiommu_mode=1

CONFIG_UIO_HV_GENERIC #This one is to support Hyper-V vmbus

We could not identify users of the other CONFIG_UIO options; we should disable those in RHEL9.  (They can be re-enabled on demand as needed later.)

(Initially discovered during work on https://bugzilla.redhat.com/show_bug.cgi?id=1946644)

Version-Release number of selected component (if applicable):
N/A

Comment 9 errata-xmlrpc 2022-05-17 15:38:02 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: kernel), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:3907


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