Bug 1452240 – kvmgt.ko needs unknown symbol

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Bug 1452240 - kvmgt.ko needs unknown symbol

Summary:	kvmgt.ko needs unknown symbol

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	kernel-rt (Show other bugs)
Sub Component:
Version:	7.4
Hardware:	Unspecified Unspecified

Priority	high Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Luis Claudio R. Goncalves
QA Contact:	Jiri Kastner
Docs Contact:

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Depends On:
Blocks:	1175461 1353018
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Reported:	2017-05-18 12:04 EDT by Luiz Capitulino
Modified:	2017-08-01 20:26 EDT (History)
CC List:	6 users (show)

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Last Closed:	2017-08-01 15:05:29 EDT
Type:	Bug
Regression:	---
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:2077	normal	SHIPPED_LIVE	Important: kernel-rt security, bug fix, and enhancement update	2017-08-01 14:13:37 EDT

Groups: None (edit)

Description Luiz Capitulino 2017-05-18 12:04:41 EDT

Description of problem:

When installing the kernel-rt package without the kernel-rt-kvm package, I get the following warnings:

depmod: WARNING: /lib/modules/3.10.0-666.rt56.585.el7.x86_64/kernel/drivers/gpu/drm/i915/gvt/kvmgt.ko needs unknown symbol gfn_to_memslot
depmod: WARNING: /lib/modules/3.10.0-666.rt56.585.el7.x86_64/kernel/drivers/gpu/drm/i915/gvt/kvmgt.ko needs unknown symbol kvm_put_kvm
depmod: WARNING: /lib/modules/3.10.0-666.rt56.585.el7.x86_64/kernel/drivers/gpu/drm/i915/gvt/kvmgt.ko needs unknown symbol kvm_write_guest
depmod: WARNING: /lib/modules/3.10.0-666.rt56.585.el7.x86_64/kernel/drivers/gpu/drm/i915/gvt/kvmgt.ko needs unknown symbol kvm_slot_page_track_remove_page
depmod: WARNING: /lib/modules/3.10.0-666.rt56.585.el7.x86_64/kernel/drivers/gpu/drm/i915/gvt/kvmgt.ko needs unknown symbol kvm_page_track_register_notifier
depmod: WARNING: /lib/modules/3.10.0-666.rt56.585.el7.x86_64/kernel/drivers/gpu/drm/i915/gvt/kvmgt.ko needs unknown symbol kvm_page_track_unregister_notifier
depmod: WARNING: /lib/modules/3.10.0-666.rt56.585.el7.x86_64/kernel/drivers/gpu/drm/i915/gvt/kvmgt.ko needs unknown symbol kvm_slot_page_track_add_page
depmod: WARNING: /lib/modules/3.10.0-666.rt56.585.el7.x86_64/kernel/drivers/gpu/drm/i915/gvt/kvmgt.ko needs unknown symbol kvm_read_guest
depmod: WARNING: /lib/modules/3.10.0-666.rt56.585.el7.x86_64/kernel/drivers/gpu/drm/i915/gvt/kvmgt.ko needs unknown symbol kvm_get_kvm

The problem is that the kvmgt.ko module needs symbols exported by kvm.ko, which is provided by kernel-rt-kvm.

The consequence of this problem is that the user will be unable to load kvmgt if kernel-rt-kvm is not installed. If kernel-rt-kvm is installed afterwards, depmod -a needs to be run again otherwise the user will still be unable to load kvmgt.

I think the best solution is to include kvmgt in the kernel-rt-kvm package. Although I don't know if anyone will ever be using kvmgt under the RT kernel or if it works at all under the RT kernel.


Version-Release number of selected component (if applicable): kernel-rt-3.10.0-666.rt56.585.el7.x86_64


How reproducible:


Steps to Reproduce:
1. Install the kernel-rt package without kernel-rt-kvm

Comment 19 errata-xmlrpc 2017-08-01 15:05:29 EDT

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, 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/RHSA-2017:2077

Comment 20 errata-xmlrpc 2017-08-01 20:26:40 EDT

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, 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/RHSA-2017:2077

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