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Bug 1811725

Summary:	snapshot of inactive LV leaves the LV locked
Product:	Red Hat Enterprise Linux 8	Reporter:	David Teigland <teigland>
Component:	lvm2	Assignee:	David Teigland <teigland>
lvm2 sub component:	LVM lock daemon / lvmlockd	QA Contact:	cluster-qe <cluster-qe>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	unspecified
Priority:	unspecified	CC:	agk, cmarthal, heinzm, jbrassow, mcsontos, pasik, prajnoha, rhandlin, teigland, zkabelac
Version:	8.2	Flags:	pm-rhel: mirror+
Target Milestone:	rc
Target Release:	8.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	lvm2-2.03.09-4.el8	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-11-04 02:00:25 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description David Teigland 2020-03-09 15:47:43 UTC

Description of problem:

Problem reported usptream:
https://www.redhat.com/archives/linux-lvm/2020-March/msg00000.html


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 1 David Teigland 2020-03-09 17:30:06 UTC

fix in master
https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=dd0fdd846d85d7028e65bb801c27791a8e2cee2d

Comment 5 Corey Marthaler 2020-08-17 21:08:37 UTC

Fix verified in the latest rpms.

kernel-4.18.0-232.el8    BUILT: Mon Aug 10 02:17:54 CDT 2020
lvm2-2.03.09-5.el8    BUILT: Wed Aug 12 15:51:50 CDT 2020
lvm2-libs-2.03.09-5.el8    BUILT: Wed Aug 12 15:51:50 CDT 2020
lvm2-lockd-2.03.09-5.el8    BUILT: Wed Aug 12 15:51:50 CDT 2020
device-mapper-1.02.171-5.el8    BUILT: Wed Aug 12 15:51:50 CDT 2020
device-mapper-libs-1.02.171-5.el8    BUILT: Wed Aug 12 15:51:50 CDT 2020
device-mapper-event-1.02.171-5.el8    BUILT: Wed Aug 12 15:51:50 CDT 2020
device-mapper-event-libs-1.02.171-5.el8    BUILT: Wed Aug 12 15:51:50 CDT 2020
device-mapper-persistent-data-0.8.5-3.el8    BUILT: Wed Nov 27 07:05:21 CST 2019
sanlock-3.8.2-1.el8    BUILT: Mon Aug 10 12:12:49 CDT 2020
sanlock-lib-3.8.2-1.el8    BUILT: Mon Aug 10 12:12:49 CDT 2020



[root@host-073 ~]# systemctl status sanlock
â sanlock.service - Shared Storage Lease Manager
   Loaded: loaded (/usr/lib/systemd/system/sanlock.service; disabled; vendor preset: disabled)
   Active: active (running) since Thu 2020-08-13 18:20:44 CDT; 3 days ago
  Process: 3582 ExecStart=/usr/sbin/sanlock daemon (code=exited, status=0/SUCCESS)
 Main PID: 3591 (sanlock)
    Tasks: 9 (limit: 93971)
   Memory: 90.9M
   CGroup: /system.slice/sanlock.service
           ââ3591 /usr/sbin/sanlock daemon
           ââ3592 /usr/sbin/sanlock daemon

Aug 13 18:20:44 host-073.virt.lab.msp.redhat.com systemd[1]: Starting Shared Storage Lease Manager...
Aug 13 18:20:44 host-073.virt.lab.msp.redhat.com systemd[1]: Started Shared Storage Lease Manager.

[root@host-073 ~]# systemctl status lvmlockd
â lvmlockd.service - LVM lock daemon
   Loaded: loaded (/usr/lib/systemd/system/lvmlockd.service; disabled; vendor preset: disabled)
   Active: active (running) since Thu 2020-08-13 18:21:01 CDT; 3 days ago
     Docs: man:lvmlockd(8)
 Main PID: 3612 (lvmlockd)
    Tasks: 5 (limit: 93971)
   Memory: 5.0M
   CGroup: /system.slice/lvmlockd.service
           ââ3612 /usr/sbin/lvmlockd --foreground

Aug 13 18:21:01 host-073.virt.lab.msp.redhat.com systemd[1]: Starting LVM lock daemon...
Aug 13 18:21:01 host-073.virt.lab.msp.redhat.com lvmlockd[3612]: [D] creating /run/lvm/lvmlockd.socket
Aug 13 18:21:01 host-073.virt.lab.msp.redhat.com lvmlockd[3612]: 1597360861 lvmlockd started
Aug 13 18:21:01 host-073.virt.lab.msp.redhat.com systemd[1]: Started LVM lock daemon.
Aug 13 21:16:18 host-073.virt.lab.msp.redhat.com lvmlockd[3612]: 1597371378 S lvm_vdo_2_7084 R SS1RVu-epPQ-iDhX-UqO4-Osn2-wXM1-CPtf6m clear lock persistent
Aug 17 11:09:21 host-073.virt.lab.msp.redhat.com lvmlockd[3612]: 1597680561 S lvm_vdo_1_1668 R 3iLFuj-EDhs-na4c-wC0t-Bl1c-L4QY-sG2faN clear lock persistent


[root@host-073 ~]# vgcreate  --shared test /dev/sdd1 /dev/sdc2 /dev/sdc1
  Logical volume "lvmlock" created.
  Volume group "test" successfully created
  VG test starting sanlock lockspace
  Starting locking.  Waiting until locks are ready...

# Other host
[root@host-083 ~]# vgchange --lock-start test
  VG test starting sanlock lockspace
  Starting locking.  Waiting for sanlock may take 20 sec to 3 min...


[root@host-073 ~]# lvcreate --activate n -L 12M  -n lv test
  WARNING: Logical volume test/lv not zeroed.
  Logical volume "lv" created.
[root@host-073 ~]# lvcreate --activate n -L 12M  -n lv2 test
  WARNING: Logical volume test/lv2 not zeroed.
  Logical volume "lv2" created.

[root@host-073 ~]# lvs -o +lv_uuid
  LV     VG            Attr       LSize   Pool   Origin Data%  Meta%  Move Log Cpy%Sync Convert LV UUID                               
  lv     test          -wi-------  12.00m                                                       RmsfC9-qAoj-P2G8-0sgW-jkdR-iUBN-DhZFPV
  lv2    test          -wi-------  12.00m                                                       4XCm0V-3ZG8-JOZa-vynS-gKb1-mciT-Ahgn8v

[root@host-073 ~]# lvmlockctl -i
VG global lock_type=sanlock V3wQRT-GjNp-Wx3A-fTxg-snpz-SsF1-oaYdvd
LS sanlock lvm_global
LK VG un ver 0
LK GL un ver 6

VG test lock_type=sanlock xOZ1Rd-XgC3-X32T-pF0D-m97S-11Tu-n1YxtS
LS sanlock lvm_test
LK VG un ver 5
LK LV un RmsfC9-qAoj-P2G8-0sgW-jkdR-iUBN-DhZFPV
LK LV un 4XCm0V-3ZG8-JOZa-vynS-gKb1-mciT-Ahgn8v

[root@host-073 ~]# lvcreate -L 12m -s lv2 -n test/lv2-snap
  Logical volume "lv2-snap" created.

[root@host-073 ~]# lvs -o +lv_uuid
  LV       VG            Attr       LSize   Pool   Origin Data%  Meta%  Move Log Cpy%Sync Convert LV UUID                               
  lv       test          -wi-------  12.00m                                                       RmsfC9-qAoj-P2G8-0sgW-jkdR-iUBN-DhZFPV
  lv2      test          owi---s---  12.00m                                                       4XCm0V-3ZG8-JOZa-vynS-gKb1-mciT-Ahgn8v
  lv2-snap test          swi---s---  12.00m        lv2                                            AZmG1a-fgJ4-Havn-eJNq-pX6u-nla5-fumXpq

[root@host-073 ~]# lvmlockctl -i
VG global lock_type=sanlock V3wQRT-GjNp-Wx3A-fTxg-snpz-SsF1-oaYdvd
LS sanlock lvm_global
LK VG un ver 0
LK GL un ver 6

VG test lock_type=sanlock xOZ1Rd-XgC3-X32T-pF0D-m97S-11Tu-n1YxtS
LS sanlock lvm_test
LK VG un ver 7
LK LV un RmsfC9-qAoj-P2G8-0sgW-jkdR-iUBN-DhZFPV
LK LV un 4XCm0V-3ZG8-JOZa-vynS-gKb1-mciT-Ahgn8v

# Other host is able to activate the volume

[root@host-083 ~]# lvchange -a y test/lv2
[root@host-083 ~]# lvs -a -o +devices
  LV              VG            Attr       LSize   Pool   Origin Data%  Meta%  Move Log Cpy%Sync Convert Devices        
  [lvmlock]       global        -wi-ao---- 256.00m                                                       /dev/sde2(0)   
  lv              test          -wi-------  12.00m                                                       /dev/sde1(64)  
  lv2             test          owi-a-s---  12.00m                                                       /dev/sde1(67)  
  lv2-snap        test          swi-a-s---  12.00m        lv2    0.00                                    /dev/sde1(70)  
  [lvmlock]       test          -wi-ao---- 256.00m                                                       /dev/sde1(0)   

[root@host-083 ~]#  lvmlockctl -i
VG global lock_type=sanlock V3wQRT-GjNp-Wx3A-fTxg-snpz-SsF1-oaYdvd
LS sanlock lvm_global
LK VG un ver 0
LK GL un ver 6

VG test lock_type=sanlock xOZ1Rd-XgC3-X32T-pF0D-m97S-11Tu-n1YxtS
LS sanlock lvm_test
LK VG un ver 7
LK LV ex 4XCm0V-3ZG8-JOZa-vynS-gKb1-mciT-Ahgn8v

Comment 8 errata-xmlrpc 2020-11-04 02:00:25 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 (lvm2 bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:4546