Bug 192081

Summary: dmsetup reports 0 opened devices on LVM2 volumes.
Product: Red Hat Enterprise Linux 4 Reporter: Jose Plans <jplans>
Component: lvm2Assignee: Alasdair Kergon <agk>
Status: CLOSED CURRENTRELEASE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 4.0CC: mbroz, pdemauro
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: U4 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2006-09-04 00:24:42 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: 176344    
Attachments:
Description Flags
Description of the problem. none

Description Jose Plans 2006-05-17 14:05:41 UTC 
Hi,

 This customer is experiencing the same issues as reported back on January on
the dm-devel list: 
 http://www.redhat.com/archives/dm-devel/2006-January/msg00000.html
 The problem description:

After configuring LVM2 on top of a dm-raid device, dmsetup info will report its
usage counter is 0, not allowing the user to deactivate the volume.

Running: # dmsetup info -c stlinux12vg1-stlinux12vg1lv1
Returns: Open 0.
And running: # lvdisplay stlinux12vg1
Returns: open 1.

Then "vgchange -aln <vgname>" command will report :
Can't deactivate volume group "vgname" with 1 open logical volume(s) 
 
 There's a file describing all the customer has done attached to this Bugzilla
which, I believe, explains the issue command by command. Please let me know if
there is something missing,
Comment 1 Jose Plans 2006-05-17 14:05:42 UTC 
Created attachment 129319 [details]
Description of the problem.
Comment 2 Alasdair Kergon 2006-06-06 14:06:11 UTC 
As discussed, please re-test with the U3 packages.
If it's still wrong, add -vvvv to the lvdisplay command and post the full output.
Comment 4 RHEL Program Management 2006-08-18 15:52:09 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.