Bug 808442 - weak-module : when adding a module, should collect the symbols from external modules of destination kernel
weak-module : when adding a module, should collect the symbols from external ...
Product: Fedora
Classification: Fedora
Component: module-init-tools (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Jon Masters
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-03-30 07:55 EDT by Xavier Bru
Modified: 2015-02-17 09:11 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2015-02-17 09:11:07 EST
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
proposed patch (1.51 KB, text/plain)
2012-03-30 07:55 EDT, Xavier Bru
no flags Details

  None (edit)
Description Xavier Bru 2012-03-30 07:55:31 EDT
Created attachment 573971 [details]
proposed patch

Description of problem:
When adding a module that has a different version to a kernel, weak-modules looks into the symbols of the destination kernel, but does not looks into the external modules already installed for that kernel. If some symbol is defined by one of these external modules, weak module returns that the new module "is not compatible"

Version-Release number of selected component (if applicable): 3.9-19

How reproducible:

Steps to Reproduce:
1. build some external modules m1 and m2 on kernel version n. module m2 imports some symbols from m1.
2. install kernel n and modules m1 and m2 (that install in /lib/modules/n/extra for example)
3. build module m2 on kernel version n+1 (with same kabi).
   install module m2 will fail
Actual results: no link created in /lib/modules/n+1/weak-modules

Expected results: link created in /lib/modules/n+1/weak-modules

Additional info: See attached proposed patch.
Comment 2 Xavier Bru 2012-03-30 10:46:57 EDT
Sorry, should read:

Steps to Reproduce:
1. build some external module m1 on kernel version n.
2. install kernel n and modules m1 (that installs in /lib/modules/n/extra/)
3. build module m2 on kernel version n+1 (with same kabi).
   module m2 imports some symbols from m1.
4. install module m2
   install of module m2 will install in lib/modules/n+1/extra
but weak-modules script called by postinstall will say "m2 module is not compatible with the kernel n"
and no link in /lib/modules/n/weak-updates/ is created.

Actual results: new m2 module can't be loaded on kernel n as there is no link in /lib/modules/n/weak-updates/.

Expected results: a link is created in /lib/modules/n/weak-updates/ on  /lib/modules/n+1/extra/  for the m2 module. m2 module can be loaded on kernel n
Comment 3 RHEL Product and Program Management 2012-05-03 01:19:56 EDT
Since RHEL 6.3 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.
Comment 4 Fedora End Of Life 2013-04-03 11:23:25 EDT
This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle.
Changing version to '19'.

(As we did not run this process for some time, it could affect also pre-Fedora 19 development
cycle bugs. We are very sorry. It will help us with cleanup during Fedora 19 End Of Life. Thank you.)

More information and reason for this action is here:
Comment 5 Fedora End Of Life 2015-01-09 12:05:10 EST
This message is a notice that Fedora 19 is now at end of life. Fedora 
has stopped maintaining and issuing updates for Fedora 19. It is 
Fedora's policy to close all bug reports from releases that are no 
longer maintained. Approximately 4 (four) weeks from now this bug will
be closed as EOL if it remains open with a Fedora 'version' of '19'.

Package Maintainer: If you wish for this bug to remain open because you
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Comment 6 Fedora End Of Life 2015-02-17 09:11:07 EST
Fedora 19 changed to end-of-life (EOL) status on 2015-01-06. Fedora 19 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

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