Bug 708458

Summary:	Dangling symlinks upon installation of kmod-kvm on RHEL 5.6
Product:	Red Hat Enterprise Linux 5	Reporter:	Akemi Yagi <toracat>
Component:	module-init-tools	Assignee:	David Shea <dshea>
Status:	CLOSED ERRATA	QA Contact:	qe-baseos-daemons
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	5.6	CC:	ajb, azelinka, dshea, jcm, phil, psklenar, tis
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Linux
Whiteboard:
Fixed In Version:	module-init-tools-3.3-0.pre3.1.62.el5	Doc Type:	Bug Fix
Doc Text:	Updating kmod-kvm after a kernel update had been performed caused a broken symbolic link to the kvm.ko module due to the link pointing to the old kernel's kvm.ko module. Now, the new version of kmod-kvm is updated, and broken symbolic links no longer occur in the described scenario.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-10-01 00:40:39 UTC	Type:	---
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:	921048, 928849

Description Akemi Yagi 2011-05-27 17:34:21 UTC

Description of problem:
The latest kmod-kvm creates broken symbolic links on RHEL 5.6.

Version-Release number of selected component (if applicable):
module-init-tools-3.3-0.pre3.1.60.el5_5.1
kmod-kvm-83-224.el5_6.1

How reproducible:
Always

Steps to Reproduce:
1. Install kmod-kvm-83-224.el5
2. Update the kernel to 238.9.1
3. Update kmod-kvm to 83-224.el5_6.1
  
Actual results:
lrwxrwxrwx 1 root root      49 Apr 12 18:12  /lib/modules/2.6.18-238.9.1.el5/weak-updates/kmod-kvm/kvm.ko -> /lib/modules/2.6.18-237.el5/extra/kmod-kvm/kvm.ko

The target is non-existing. This is a broken link.

Expected results:
It should link to /lib/modules/2.6.18-238.9.1/extra/kmod-kvm/kvm.ko

Additional info:

This issue can be reproduced by the following procedure:

Have 2 versions of kernel (A and B) ready.
Have a kmod package with two different kversions ready.

(1) Install the kmod-kversion1 on kernel-A.
(2) Update the kernel to the newer kernel-B.
(3) Update the kmod to kmod-kversion2

When the version of kernel-B matches exactly with the kversion of the new kmod, kernel-B gets a dangling symlink. (This happened with kmod-kvm)

This does not impose a problem function-wise as far as 'extra' has precedence over weak-updates (default).

Comment 1 Akemi Yagi 2012-01-22 08:45:32 UTC

Jon,

Did you have a chance to look at this bug? Any chance you can fix this in the next release of module-init-tools?

Comment 8 errata-xmlrpc 2013-10-01 00:40:39 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, and where to find the updated
files, follow the link below.

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

http://rhn.redhat.com/errata/RHBA-2013-1359.html