RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 712147 - vgimportclone fails because lvm query commands (pvs, pvdisplay) fail to report vgname when given cloned PV
Summary: vgimportclone fails because lvm query commands (pvs, pvdisplay) fail to repor...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: lvm2
Version: 6.1
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: 6.2
Assignee: Peter Rajnoha
QA Contact: Corey Marthaler
URL:
Whiteboard:
Depends On: 697959
Blocks: 707606 1020442
TreeView+ depends on / blocked
 
Reported: 2011-06-09 15:17 UTC by Dave Wysochanski
Modified: 2018-11-27 20:49 UTC (History)
11 users (show)

Fixed In Version: lvm2-2.02.86-1.el6
Doc Type: Bug Fix
Doc Text:
The vgimportclone script triggered a code path in lvm that caused it to access already released memory when duplicated PV was found. Consequently, the VG that contained such PV was found to be inconsistent and the process ended up with a failure to read the VG. This has been fixed internally by saving such problematic strings to a temporary buffer and thus avoiding improper memory access.
Clone Of: 697959
: 1020442 (view as bug list)
Environment:
Last Closed: 2011-12-06 16:59:21 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2011:1522 0 normal SHIPPED_LIVE lvm2 bug fix and enhancement update 2011-12-06 00:50:10 UTC

Comment 4 Corey Marthaler 2011-06-16 22:12:54 UTC 
Adding QA ack for 6.2. 

Devel will need to provide RHEL6.2 unit testing results however before this bug can be ultimately verified by QA.
Comment 5 Gonzalo Servat 2011-08-03 08:53:38 UTC 
This bug is affecting us, as we're hitting it when cloning a PV. Any ideas when an updated RPM will be released for RHEL6?
Comment 7 Peter Rajnoha 2011-08-16 11:54:06 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:
The vgimportclone script triggered a code path in lvm that caused it to access already released memory when duplicated PV was found. Consequently, the VG that contained such PV was found to be inconsistent and the process ended up with a failure to read the VG. This has been fixed internally by saving such problematic strings to a temporary buffer and thus avoiding improper memory access.
Comment 8 Corey Marthaler 2011-09-08 21:30:54 UTC 
Verified that vgname is now reported in the latest rpms (2.6.32-193.el6.x86_64/lvm2-2.02.87-1.el6).

[root@grant-01 ~]#  dd if=/dev/zero of=/tmp/image.bin bs=1M count=10
10+0 records in
10+0 records out
10485760 bytes (10 MB) copied, 0.0377251 s, 278 MB/s
[root@grant-01 ~]# losetup /dev/loop0 /tmp/image.bin
[root@grant-01 ~]# pvcreate /dev/loop0
  Writing physical volume data to disk "/dev/loop0"
  Physical volume "/dev/loop0" successfully created
[root@grant-01 ~]# vgcreate vgtest /dev/loop0
  Volume group "vgtest" successfully created
[root@grant-01 ~]#  pvs /dev/loop0
  PV         VG     Fmt  Attr PSize PFree
  /dev/loop0 vgtest lvm2 a--  8.00m 8.00m
[root@grant-01 ~]# losetup /dev/loop1 /tmp/image.bin
[root@grant-01 ~]# pvs /dev/loop0
  Found duplicate PV yORwCd0c9Nu3wTbcE9jjJbd7zxoK7MWh: using /dev/loop1 not /dev/loop0
  PV         VG     Fmt  Attr PSize PFree
  /dev/loop1 vgtest lvm2 a--  8.00m 8.00m
[root@grant-01 ~]#  pvs /dev/loop1
  Found duplicate PV yORwCd0c9Nu3wTbcE9jjJbd7zxoK7MWh: using /dev/loop0 not /dev/loop1
  PV         VG     Fmt  Attr PSize PFree
  /dev/loop0 vgtest lvm2 a--  8.00m 8.00m
[root@grant-01 ~]# pvs /dev/loop0
  Found duplicate PV yORwCd0c9Nu3wTbcE9jjJbd7zxoK7MWh: using /dev/loop1 not /dev/loop0
  PV         VG     Fmt  Attr PSize PFree
  /dev/loop1 vgtest lvm2 a--  8.00m 8.00m
[root@grant-01 ~]# pvs
  Found duplicate PV yORwCd0c9Nu3wTbcE9jjJbd7zxoK7MWh: using /dev/loop1 not /dev/loop0
  PV         VG         Fmt  Attr PSize  PFree
  /dev/loop1 vgtest     lvm2 a--   8.00m 8.00m
  /dev/sda2  vg_grant01 lvm2 a--  74.01g    0 
[root@grant-01 ~]# losetup -d /dev/loop0
[root@grant-01 ~]# losetup -d /dev/loop1


## Reproduced the original problem, no vgname, on RHEL6.1 rpms (2.6.32-131.0.15.el6.x86_64/lvm2-2.02.83-3.el6.x86_64)
[root@grant-03 ~]# dd if=/dev/zero of=/tmp/image.bin bs=1M count=10
10+0 records in
10+0 records out
10485760 bytes (10 MB) copied, 0.0741192 s, 141 MB/s
[root@grant-03 ~]# losetup /dev/loop0 /tmp/image.bin
[root@grant-03 ~]# pvcreate /dev/loop0
  Physical volume "/dev/loop0" successfully created
[root@grant-03 ~]# vgcreate vgtest /dev/loop0
  Volume group "vgtest" successfully created
[root@grant-03 ~]# pvs /dev/loop0
  PV         VG     Fmt  Attr PSize PFree
  /dev/loop0 vgtest lvm2 a-   8.00m 8.00m
[root@grant-03 ~]# losetup /dev/loop1 /tmp/image.bin
[root@grant-03 ~]# pvs /dev/loop0
  PV         VG     Fmt  Attr PSize PFree
  /dev/loop0 vgtest lvm2 a-   8.00m 8.00m
[root@grant-03 ~]# pvs /dev/loop1
  Found duplicate PV s5KwV9wRCBuU44s3GOwfXTAf8YFf0Ldp: using /dev/loop0 not /dev/loop1
  get_pv_from_vg_by_id: vg_read_internal failed to read VG vgtest
  PV         VG   Fmt  Attr PSize  PFree 
  /dev/loop0      lvm2 a-   10.00m 10.00m
[root@grant-03 ~]# pvs /dev/loop0
  Found duplicate PV s5KwV9wRCBuU44s3GOwfXTAf8YFf0Ldp: using /dev/loop1 not /dev/loop0
  get_pv_from_vg_by_id: vg_read_internal failed to read VG vgtest
  PV         VG   Fmt  Attr PSize  PFree 
  /dev/loop1      lvm2 a-   10.00m 10.00m
[root@grant-03 ~]# losetup -d /dev/loop0
[root@grant-03 ~]# losetup -d /dev/loop1
Comment 9 errata-xmlrpc 2011-12-06 16:59:21 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-2011-1522.html
Note You need to log in before you can comment on or make changes to this bug.