Bug 427294

Summary:	snap creation on inactive lv causes an invaild and "100% full" snapshot
Product:	Red Hat Enterprise Linux 5	Reporter:	Corey Marthaler <cmarthal>
Component:	lvm2	Assignee:	Milan Broz <mbroz>
Status:	CLOSED ERRATA	QA Contact:	Corey Marthaler <cmarthal>
Severity:	low	Docs Contact:
Priority:	low
Version:	5.2	CC:	agk, dwysocha, heinzm, jbrassow, mbroz, prockai, pvrabec
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHBA-2008-0378	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-05-21 15:39:44 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:

Description Corey Marthaler 2008-01-02 20:29:04 UTC

Description of problem:
This is the rhel5 version of bz 248449. Opening this bug since the fix is not
yet into a rhel5 build of lvm2.


[root@hayes-03 ~]# lvcreate -n origin -L 10G corey
  Logical volume "origin" created
[root@hayes-03 ~]# lvs -a -o +devices
  LV       VG         Attr   LSize  Origin Snap%  Move Log Copy%  Devices
  LogVol00 VolGroup00 -wi-ao 72.44G                               /dev/sda2(0)
  LogVol01 VolGroup00 -wi-ao  1.94G                               /dev/sda2(2318)
  origin   corey      -wi-a- 10.00G                              
/dev/etherd/e1.1p1(0)
[root@hayes-03 ~]# lvchange -an corey/origin
[root@hayes-03 ~]# lvcreate -s corey/origin -L 6G -n snap1
  Logical volume "snap1" created
[root@hayes-03 ~]# lvs -a -o +devices
  LV       VG         Attr   LSize  Origin Snap%  Move Log Copy%  Devices
  LogVol00 VolGroup00 -wi-ao 72.44G                               /dev/sda2(0)
  LogVol01 VolGroup00 -wi-ao  1.94G                               /dev/sda2(2318)
  origin   corey      owi--- 10.00G                              
/dev/etherd/e1.1p1(0)
  snap1    corey      Swi-I-  6.00G origin 100.00                
/dev/etherd/e1.1p2(0)
[root@hayes-03 ~]# rpm -q lvm2
lvm2-2.02.26-3.el5

Comment 1 RHEL Program Management 2008-01-02 20:54:41 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.

Comment 3 Milan Broz 2008-01-18 00:23:39 UTC

In lvm2-2.02.30-1.el5.

Comment 5 Corey Marthaler 2008-03-31 18:38:59 UTC

Fix verified in lvm2-2.02.32-2.el5.

[root@hayes-03 ~]# lvscan
  inactive          '/dev/corey/origin' [12.00 MB] inherit
[root@hayes-03 ~]# lvcreate -s corey/origin -L 10M -n snap
  Rounding up size to full physical extent 12.00 MB
  Logical volume "snap" created
[root@hayes-03 ~]# lvs -a -o +devices
  LV       VG         Attr   LSize  Origin Snap%  Move Log Copy%  Convert Devices
  origin   corey      owi--- 12.00M                                      
/dev/etherd/e1.1p1(0)
  snap     corey      swi--- 12.00M origin                               
/dev/etherd/e1.1p2(0)

Comment 7 errata-xmlrpc 2008-05-21 15:39:44 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2008-0378.html