Bug 1977192

Summary:	[aarch64][kernel]pvpanic-pci module is not loaded automatically
Product:	Red Hat Enterprise Linux 9	Reporter:	Eric Auger <eric.auger>
Component:	kernel	Assignee:	Eric Auger <eric.auger>
kernel sub component:	Virtualization	QA Contact:	Zhenyu Zhang <zhenyzha>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	medium
Priority:	medium	CC:	drjones, gshan, hkrzesin, lcapitulino, lijin, qzhang, yihyu, zhenyzha
Version:	9.0	Keywords:	Triaged
Target Milestone:	beta	Flags:	pm-rhel: mirror+
Target Release:	---
Hardware:	aarch64
OS:	Linux
Whiteboard:
Fixed In Version:	kernel-5.14.0-3.el9	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-05-17 15:38:42 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1924294, 1961326

Description Eric Auger 2021-06-29 07:37:15 UTC

Since BZ961178 ("[aarch64] [kernel] Add support for pvpanic-pci"), the pvpanic-pci  driver is compiled. Unfortunately it isn't loaded automatically when the guest is exposed with the pvpanic-pci device and for the use case to work, a manual modprobe is required. This BZ to add the auto-load modality using MODULE_DEVICE_TABLE macro in the driver (tentative).

"[PATCH v2] misc/pvpanic-pci: Allow automatic loading" is under discussion on the ML.

Comment 1 Eric Auger 2021-06-29 07:39:54 UTC

(In reply to Eric Auger from comment #0)
> Since BZ961178 ("[aarch64] [kernel] Add support for pvpanic-pci"), the
Read BZ1961178 ("[aarch64] [kernel] Add support for pvpanic-pci")

Comment 2 Zhenyu Zhang 2021-07-20 05:57:59 UTC

Hello Eric,

Do we plan to fix this bug in 9.0 Beta? 
If the fix is planned, we need to set up the DTM.
After this, I will set up ITM.

thanks

ZhenYu

Comment 3 Eric Auger 2021-07-20 07:22:05 UTC

Hi Zhenyu, a fix was sent upstream and is waiting for review. I cannot guess when this will land upstream as it missed v5.14, so I cannot set any DTM atm. Thanks. Eric

Comment 4 Eric Auger 2021-09-09 12:31:35 UTC

The fix has landed upstream in 5.15
28b6a003bcdfa  misc/pvpanic-pci: Allow automatic loading

Comment 9 Zhenyu Zhang 2021-09-18 06:07:48 UTC

Since the fixed version kernel is not included in the latest compose, ITM is moved to 4.

Comment 14 errata-xmlrpc 2022-05-17 15:38:42 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