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Bug 451816

Summary: CMAN init script must not try to load lock_dlm
Product: Red Hat Enterprise Linux 5 Reporter: Robert Peterson <rpeterso>
Component: cmanAssignee: Robert Peterson <rpeterso>
Status: CLOSED NOTABUG QA Contact: Cluster QE <mspqa-list>
Severity: low Docs Contact:
Priority: low    
Version: 5.3CC: adas, cluster-maint, edamato, swhiteho, teigland
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-06-26 15:19:01 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 447748    
Bug Blocks:    

Description Robert Peterson 2008-06-17 16:24:46 UTC
Description of problem:
We're splitting out the locking protocols between gfs and gfs2.
Even though it's in the gfs2 kernel source tree, lock_dlm module will
now only look for gfs 1's gfs-kernel "gfs_register_lockproto".
Therefore, the cman init script cannot automatically load it as before.

The loading of lock_dlm either needs to be done from the gfs init
script or not at all (and let the module dependencies take care of it).

Version-Release number of selected component (if applicable):
RHEL5.3 plus the fix for bug #447748 

How reproducible:

Steps to Reproduce:
1. service cman start

Actual results:
[root@exxon-01 ../fs/gfs2]# service cman start
Starting cluster: 
   Loading modules... failed
FATAL: Error inserting lock_dlm
(/lib/modules/2.6.18-prep/extra/locking/dlm/lock_dlm.ko): Unknown symbol in
module, or unknown parameter (see dmesg)
On the console or in dmesg:
lock_dlm: Unknown symbol gfs_register_lockproto
lock_dlm: Unknown symbol gfs_unregister_lockproto

Expected results:
[root@exxon-01 ../fs/gfs2]# service cman start
Starting cluster: 
   Loading modules... done
   Mounting configfs... done
   Starting ccsd... done
   Starting cman... done
   Starting daemons... done
   Starting fencing... done
                                                           [  OK  ]

Additional info:

Comment 1 David Teigland 2008-06-24 17:13:33 UTC
How about the cman init script modprobe's gfs, then modprobe's lock_dlm,
and ignores any failures?

Comment 2 Robert Peterson 2008-06-26 15:19:01 UTC
The decision was made to keep the lock_dlm in place for GFS2 and split
it off by cloning it for the GFS1 package.  Therefore, lock_dlm will
still be in place, at least for 5.3.  Therefore, we don't need to change
the init script.  Closing as NOTABUG.