Bug 639258

Summary: Can't reload modules
Product: Red Hat Enterprise Linux 6 Reporter: Miroslav Vadkerti <mvadkert>
Component: irssiAssignee: Jaroslav Škarvada <jskarvad>
Status: CLOSED ERRATA QA Contact: Filip Holec <fholec>
Severity: medium Docs Contact:
Priority: low    
Version: 6.0CC: fholec, jskarvad, ovasik, psplicha, rvokal
Target Milestone: rcKeywords: EasyFix, Patch
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: irssi-0.8.15-4.el6 Doc Type: Bug Fix
Doc Text:
Previously it was possible to unload static modules. As these modules are static it wasn't actually unloaded but it was only made unavailable. After the unload action was completed these modules can be reactivated only by irssi restart. It is odd behaviour, thus the unload action was blocked on the static modules. Now only the dynamic modules can be unloaded.
 Story Points: ---
Clone Of:
: 639260 1007420 (view as bug list) Environment:
Last Closed: 2012-08-15 16:06:01 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: 639260    
Bug Blocks: 1007420    
Attachments:
Description Flags
Patch for disabling unload of static modules from UI none

Description Miroslav Vadkerti 2010-10-01 09:26:09 UTC 
Description of problem:
In the latest irssi in RHEL6 i cannot reload any module after I unloaded it. When I restart irssi some modules ate auto-loaded. Unloading any module has no affect on my irssi perl scripts though (what is strange)

Version-Release number of selected component (if applicable):
irssi-0.8.15-3.el6

How reproducible:
100%

Steps to Reproduce:
1. start irssi
2. check loaded modules
/load
Module               Type    Submodules
core                 static  core irc fe fe-irc fe-text
dcc                  static  irc fe-irc
flood                static  irc
notifylist           static  irc fe-irc
perl                 static  core fe
3. unload module (e.g. perl)
/unload perl
4. verify perl module is gone
/load
Module               Type    Submodules
core                 static  core irc fe fe-irc fe-text
dcc                  static  irc fe-irc
flood                static  irc
notifylist           static  irc fe-irc
5. try to load module back
/load perl
-!- Irssi: Error loading module perl/core: /usr/lib64/irssi/modules/libperl_core.so: cannot open shared object file: No such file or directory
  
Actual results:
Can't load module

Expected results:
Module can be reloaded

Additional info:
Comment 1 Jaroslav Škarvada 2010-10-12 13:19:50 UTC 
Created attachment 452961 [details]
Patch for disabling unload of static modules from UI

This is one of possible solutions. Other (probably better and of course harder)
solution is adding support for static modules reloading.
Comment 2 Jaroslav Škarvada 2010-10-12 13:20:29 UTC 
Forwarded to upstream bugzilla:

http://bugs.irssi.org/index.php?do=details&task_id=774
Comment 3 Jaroslav Škarvada 2010-10-14 17:06:37 UTC 
> Unloading any module has no affect on my irssi perl scripts though 
> (what is strange)
> 
Seems that static modules can not be unloaded thus the patch proposed in comment 1 should be enough.
Comment 5 Suzanne Logcher 2011-02-15 21:43:21 UTC 
This issue was proposed for RHEL 6.1 FasTrack but did not get resolved in time.
It has been moved to RHEL 6.2 FasTrack.
Comment 12 Jaroslav Škarvada 2012-07-16 09:04:11 UTC 
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Previously it was possible to unload static modules. As these modules are static it wasn't actually unloaded but it was only made unavailable. After the unload action was completed these modules can be reactivated only by irssi restart. It is odd behaviour, thus the unload action was blocked on the static modules. Now only the dynamic modules can be unloaded.
Comment 16 errata-xmlrpc 2012-08-15 16:06:01 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-2012-1171.html