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Type: Bug
Resolution: Unresolved
Priority: Minor
Fix Version/s: rhel-9.6
Affects Version/s: rhel-9.4
Component/s: lvm2 / Thin Provisioning
Labels:
None

Fixed in Build:
lvm2-2.03.27-1.el9
Regression:
None
Severity:
Moderate

Pool Team:

sst_logical_storage
Sub-System Group:

ssg_filesystems_storage_and_HA

Dev Target Milestone:
8
Internal Target Milestone:
12
Story Points:
1
Blocked:
False
Blocked Reason:

Hide

None

Show
None
Product Documentation Required:
None
Sprint:
None

Preliminary Testing:
Requested
Testable Builds:
lvm2-2.03.27-1.el9
Test Coverage:
None

Experience:
Architecture:

x86_64

SFDC Cases Counter:
SFDC Cases Open:
SFDC Cases Links:

Planning:
None

The names that are being displayed in the following thin snapshot conversion scenarios are cut off in what appears random ways.

kernel-5.14.0-418.el9 BUILT: Tue Feb 6 02:07:27 AM CET 2024
lvm2-2.03.23-2.el9 BUILT: Sat Feb 3 01:10:34 AM CET 2024
lvm2-libs-2.03.23-2.el9 BUILT: Sat Feb 3 01:10:34 AM CET 2024

[root@virt-243 ~]# vgcreate VG123456789 /dev/sd[abcdefgh]
  Volume group "VG123456789" successfully created
 
[root@virt-243 ~]# lvcreate --yes --type thin-pool -n POOL123456789 -L 10G VG123456789
  Thin pool volume with chunk size 64.00 KiB can address at most <15.88 TiB of data.
  Logical volume "POOL123456789" created.
[root@virt-243 ~]# lvcreate --yes  --virtualsize 1G -T VG123456789/POOL123456789 -n origin123456789
  Logical volume "origin123456789" created.
 
[root@virt-243 ~]# lvs -a -o +devices
  LV                    VG          Attr       LSize  Pool          Origin Data%  Meta%  Move Log Cpy%Sync Convert Devices               
  POOL123456789         VG123456789 twi-aotz-- 10.00g                      0.00   10.64                            POOL123456789_tdata(0)
  [POOL123456789_tdata] VG123456789 Twi-ao---- 10.00g                                                              /dev/sda(3)           
  [POOL123456789_tmeta] VG123456789 ewi-ao---- 12.00m                                                              /dev/sdh(0)           
  [lvol0_pmspare]       VG123456789 ewi------- 12.00m                                                              /dev/sda(0)           
  origin123456789       VG123456789 Vwi-a-tz--  1.00g POOL123456789        0.00                                                          
 
[root@virt-243 ~]# lvcreate --yes  -n linear1234567890 -L 1G VG123456789
  Logical volume "linear1234567890" created.
 
[root@virt-243 ~]# lvs -a -o +devices
  LV                    VG          Attr       LSize  Pool          Origin Data%  Meta%  Move Log Cpy%Sync Convert Devices               
  POOL123456789         VG123456789 twi-aotz-- 10.00g                      0.00   10.64                            POOL123456789_tdata(0)
  [POOL123456789_tdata] VG123456789 Twi-ao---- 10.00g                                                              /dev/sda(3)           
  [POOL123456789_tmeta] VG123456789 ewi-ao---- 12.00m                                                              /dev/sdh(0)           
  linear1234567890      VG123456789 -wi-a-----  1.00g                                                              /dev/sda(2563)        
  [lvol0_pmspare]       VG123456789 ewi------- 12.00m                                                              /dev/sda(0)           
  origin123456789       VG123456789 Vwi-a-tz--  1.00g POOL123456789        0.00                                                          
 
[root@virt-243 ~]# lvconvert -s VG123456789/origin123456789 VG123456789/linear1234567890 --yes
  WARNING: Converting logical volume VG123456789/linear1234567890 to snapshot exception store.
  THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.)
  Logical volume 0 converted to snapshot.
 
### Above "0" is displayed

[root@virt-243 ~]# lvs -a -o +devices
  LV                    VG          Attr       LSize  Pool          Origin          Data%  Meta%  Move Log Cpy%Sync Convert Devices               
  POOL123456789         VG123456789 twi-aotz-- 10.00g                               0.00   10.64                            POOL123456789_tdata(0)
  [POOL123456789_tdata] VG123456789 Twi-ao---- 10.00g                                                                       /dev/sda(3)           
  [POOL123456789_tmeta] VG123456789 ewi-ao---- 12.00m                                                                       /dev/sdh(0)           
  linear1234567890      VG123456789 swi-a-s---  1.00g               origin123456789 0.00                                    /dev/sda(2563)        
  [lvol0_pmspare]       VG123456789 ewi------- 12.00m                                                                       /dev/sda(0)           
  origin123456789       VG123456789 owi-a-tz--  1.00g POOL123456789                 0.00                                                          
 
# Remove volumes and try again with other names
 
[root@virt-243 ~]# vgs
  VG          #PV #LV #SN Attr   VSize   VFree  
  VG123456789   8   0   0 wz--n- 395.75g 395.75g
[root@virt-243 ~]# lvcreate --yes --type thin-pool -n POOL123456789 -L 10G VG123456789
  Thin pool volume with chunk size 64.00 KiB can address at most <15.88 TiB of data.
  Logical volume "POOL123456789" created.
[root@virt-243 ~]# lvcreate --yes  --virtualsize 1G -T VG123456789/POOL123456789 -n origin123456789
  Logical volume "origin123456789" created.
[root@virt-243 ~]# lvcreate --yes  -n linear -L 1G VG123456789
  Logical volume "linear" created.
[root@virt-243 ~]# lvs -a -o +devices
  LV                    VG          Attr       LSize  Pool          Origin Data%  Meta%  Move Log Cpy%Sync Convert Devices               
  POOL123456789         VG123456789 twi-aotz-- 10.00g                      0.00   10.64                            POOL123456789_tdata(0)
  [POOL123456789_tdata] VG123456789 Twi-ao---- 10.00g                                                              /dev/sda(3)           
  [POOL123456789_tmeta] VG123456789 ewi-ao---- 12.00m                                                              /dev/sdh(0)           
  linear                VG123456789 -wi-a-----  1.00g                                                              /dev/sda(2563)        
  [lvol0_pmspare]       VG123456789 ewi------- 12.00m                                                              /dev/sda(0)           
  origin123456789       VG123456789 Vwi-a-tz--  1.00g POOL123456789        0.00                                                          
[root@virt-243 ~]# lvconvert -s VG123456789/origin123456789 VG123456789/linear --yes
  WARNING: Converting logical volume VG123456789/linear to snapshot exception store.
  THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.)
  Logical volume 89/origin123456789 converted to snapshot.
 
### Above "89/origin123456789" is displayed



# Remove volumes and try again with other names
 
[root@virt-243 ~]# lvcreate --yes --type thin-pool -n POOL123456789 -L 10G VG123456789 
  Thin pool volume with chunk size 64.00 KiB can address at most <15.88 TiB of data.
  Logical volume "POOL123456789" created.
[root@virt-243 ~]# lvcreate --yes  --virtualsize 1G -T VG123456789/POOL123456789 -n origin
  Logical volume "origin" created.
[root@virt-243 ~]# lvcreate --yes  -n linear -L 1G VG123456789
  Logical volume "linear" created.
[root@virt-243 ~]# lvs -a -o +devices
  LV                    VG          Attr       LSize  Pool          Origin Data%  Meta%  Move Log Cpy%Sync Convert Devices               
  POOL123456789         VG123456789 twi-aotz-- 10.00g                      0.00   10.64                            POOL123456789_tdata(0)
  [POOL123456789_tdata] VG123456789 Twi-ao---- 10.00g                                                              /dev/sda(3)           
  [POOL123456789_tmeta] VG123456789 ewi-ao---- 12.00m                                                              /dev/sdh(0)           
  linear                VG123456789 -wi-a-----  1.00g                                                              /dev/sda(2563)        
  [lvol0_pmspare]       VG123456789 ewi------- 12.00m                                                              /dev/sda(0)           
  origin                VG123456789 Vwi-a-tz--  1.00g POOL123456789        0.00                                                          
[root@virt-243 ~]# lvconvert -vvvv -s VG123456789/origin VG123456789/linear --yes > /tmp/lvconvert 2>&1
 
 
21:18:24.937939 lvconvert[2436480] device_mapper/libdm-common.c:290  Suspended device counter reduced to 0
21:18:24.937954 lvconvert[2436480] activate/dev_manager.c:3888  Creating CLEAN tree for VG123456789/origin.
21:18:24.937980 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-origin [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82WksVu74SeVjIEdMqoQ8ZjRPRIbzWc6k5].
21:18:24.937991 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82WksVu74SeVjIEdMqoQ8ZjRPRIbzWc6k5 [ noopencount flush ]   [2048] (*1)
21:18:24.938011 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm deps   (253:6) [ opencount flush ]   [16384] (*1)
21:18:24.938033 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm deps   (253:7) [ opencount flush ]   [16384] (*1)
21:18:24.938050 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm deps   (253:4) [ opencount flush ]   [16384] (*1)
21:18:24.938069 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm deps   (253:3) [ opencount flush ]   [16384] (*1)
21:18:24.938086 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm deps   (253:2) [ opencount flush ]   [16384] (*1)
21:18:24.938102 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-origin-real [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82WksVu74SeVjIEdMqoQ8ZjRPRIbzWc6k5-real].
21:18:24.938112 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82WksVu74SeVjIEdMqoQ8ZjRPRIbzWc6k5-real [ noopencount flush ]   [2048] (*1)
21:18:24.938126 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-origin-cow [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82WksVu74SeVjIEdMqoQ8ZjRPRIbzWc6k5-cow].
21:18:24.938135 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82WksVu74SeVjIEdMqoQ8ZjRPRIbzWc6k5-cow [ noopencount flush ]   [2048] (*1)
21:18:24.938148 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-linear [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1].
21:18:24.938157 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ noopencount flush ]   [2048] (*1)
21:18:24.938172 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm deps   (253:9) [ opencount flush ]   [16384] (*1)
21:18:24.938189 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm deps   (253:8) [ opencount flush ]   [16384] (*1)
21:18:24.938205 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-linear-real [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1-real].
21:18:24.938215 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1-real [ noopencount flush ]   [2048] (*1)
21:18:24.938227 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-linear-cow [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1-cow].
21:18:24.938254 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1-cow [ noopencount flush ]   [2048] (*1)
21:18:24.938268 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-POOL123456789-real [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-real].
21:18:24.938278 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-real [ noopencount flush ]   [2048] (*1)
21:18:24.938291 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-POOL123456789-tpool [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-tpool].
21:18:24.938300 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-tpool [ noopencount flush ]   [2048] (*1)
21:18:24.938313 lvconvert[2436480] device_mapper/libdm-deptree.c:605  Matched uuid LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-tpool in deptree.
21:18:24.938323 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-POOL123456789_tmeta [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82Snj1wyLlezm1Mbi1In2S3imq2XuJnPWT-tmeta].
21:18:24.938332 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82Snj1wyLlezm1Mbi1In2S3imq2XuJnPWT-tmeta [ noopencount flush ]   [2048] (*1)
21:18:24.938345 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-POOL123456789_tmeta-real [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82Snj1wyLlezm1Mbi1In2S3imq2XuJnPWT-real].
21:18:24.938355 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82Snj1wyLlezm1Mbi1In2S3imq2XuJnPWT-real [ noopencount flush ]   [2048] (*1)
21:18:24.938367 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-POOL123456789_tmeta-cow [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82Snj1wyLlezm1Mbi1In2S3imq2XuJnPWT-cow].
21:18:24.938377 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82Snj1wyLlezm1Mbi1In2S3imq2XuJnPWT-cow [ noopencount flush ]   [2048] (*1)
21:18:24.938389 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-POOL123456789_tdata [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK827X3usMsd7hgJPW6df08nCU2w23OocENR-tdata].
21:18:24.938399 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK827X3usMsd7hgJPW6df08nCU2w23OocENR-tdata [ noopencount flush ]   [2048] (*1)
21:18:24.938411 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-POOL123456789_tdata-real [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK827X3usMsd7hgJPW6df08nCU2w23OocENR-real].
21:18:24.938421 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK827X3usMsd7hgJPW6df08nCU2w23OocENR-real [ noopencount flush ]   [2048] (*1)
21:18:24.938433 lvconvert[2436480] activate/dev_manager.c:859  Getting device info for VG123456789-POOL123456789_tdata-cow [LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK827X3usMsd7hgJPW6df08nCU2w23OocENR-cow].
21:18:24.938442 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK827X3usMsd7hgJPW6df08nCU2w23OocENR-cow [ noopencount flush ]   [2048] (*1)
21:18:24.938458 lvconvert[2436480] mm/memlock.c:651  Leaving critical section (resumed).
21:18:24.938474 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:24.940777 lvconvert[2436480] libdevmapper-event.c:769  VG123456789-linear: device not registered.
21:18:24.940803 lvconvert[2436480] activate/activate.c:1930  Monitoring VG123456789/linear with libdevmapper-event-lvm2snapshot.so.
21:18:24.940833 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:25.001900 lvconvert[2436480] activate/activate.c:1741  Monitored LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 for events
21:18:25.001985 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:25.002745 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:25.002771 lvconvert[2436480] activate/activate.c:1992  VG123456789/linear monitoring still pending: waiting...
21:18:25.002875 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:25.003416 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:25.003439 lvconvert[2436480] activate/activate.c:1992  VG123456789/linear monitoring still pending: waiting...
21:18:25.013535 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:25.014171 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:25.014201 lvconvert[2436480] activate/activate.c:1992  VG123456789/linear monitoring still pending: waiting...
21:18:25.034316 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:25.034971 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK82tGkf4Of7Kl3qyb4h3p7KownspgFrtPm1 [ opencount flush ]   [2048] (*1)
21:18:25.035009 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-tpool [ opencount flush ]   [2048] (*1)
21:18:25.035587 lvconvert[2436480] libdevmapper-event.c:769  VG123456789-POOL123456789-tpool: device not registered.
21:18:25.035606 lvconvert[2436480] activate/activate.c:1930  Monitoring VG123456789/POOL123456789 with libdevmapper-event-lvm2thin.so.
21:18:25.035619 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-tpool [ opencount flush ]   [2048] (*1)
21:18:25.036614 lvconvert[2436480] activate/activate.c:1741  Monitored LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-tpool for events
21:18:25.036645 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-tpool [ opencount flush ]   [2048] (*1)
21:18:25.037195 lvconvert[2436480] device_mapper/ioctl/libdm-iface.c:2107  dm info  LVM-XXTZ6kq5RCVUMVi6cnAHMr4wBLRJkK823zwPGciShDRJCVgDYs9YbSbUJLHFjGTS-tpool [ opencount flush ]   [2048] (*1)
21:18:25.037224 lvconvert[2436480] mm/memlock.c:653  Leaving section (unlocking on resume).
21:18:25.037236 lvconvert[2436480] lvconvert.c:2133  Logical volume OL123456789 converted to snapshot.
21:18:25.037246 lvconvert[2436480] mm/memlock.c:609  Unlock: Memlock counters: prioritized:1 locked:1 critical:0 daemon:0 suspended:0
21:18:25.037256 lvconvert[2436480] mm/memlock.c:568  Unlocking memory
21:18:25.037497 lvconvert[2436480] mm/memlock.c:311  munlock        220KiB 555f2b205000 - 555f2b23c000 r--p 00000000 fd:00 9581781                    /usr/sbin/lvm
21:18:25.037546 lvconvert[2436480] mm/memlock.c:311  munlock       1632KiB 555f2b23c000 - 555f2b3d4000 r-xp 00037000 fd:00 9581781                    /usr/sbin/lvm
21:18:25.037738 lvconvert[2436480] mm/memlock.c:311  munlock        800KiB 555f2b3d4000 - 555f2b49c000 r--p 001cf000 fd:00 9581781                    /usr/sbin/lvm
21:18:25.037875 lvconvert[2436480] mm/memlock.c:311  munlock         44KiB 555f2b49d000 - 555f2b4a8000 r--p 00297000 fd:00 9581781                    /usr/sbin/lvm
21:18:25.037901 lvconvert[2436480] mm/memlock.c:311  munlock        248KiB 555f2b4a8000 - 555f2b4e6000 rw-p 002a2000 fd:00 9581781                    /usr/sbin/lvm
21:18:25.037941 lvconvert[2436480] mm/memlock.c:311  munlock       2716KiB 555f2b4e6000 - 555f2b78d000 rw-p 00000000 00:00 0
21:18:25.038281 lvconvert[2436480] mm/memlock.c:311  munlock      21668KiB 555f2bfcc000 - 555f2d4f5000 rw-p 00000000 00:00 0                          [heap]
21:18:25.039398 lvconvert[2436480] mm/memlock.c:311  munlock         20KiB 7f175e96c000 - 7f175e971000 rw-s 00000000 00:11 4941941                    /[aio] (deleted)
21:18:25.039421 lvconvert[2436480] mm/memlock.c:283  munlock default filter '/etc/selinux' matches '7f175e971000-7f175ea00000 r--p 00000000 fd:00 706369                     /etc/selinux/targeted/contexts/files/file_contexts.bin': Skipping.
21:18:25.039434 lvconvert[2436480] mm/memlock.c:311  munlock       2528KiB 7f175ea00000 - 7f175ec78000 r--p 00000000 fd:00 8553184                    /usr/lib/locale/en_US.utf8/LC_COLLATE
21:18:25.039728 lvconvert[2436480] mm/memlock.c:311  munlock         52KiB 7f175ec79000 - 7f175ec86000 r--p 00000000 fd:00 8553210                    /usr/lib64/libm.so.6
21:18:25.039745 lvconvert[2436480] mm/memlock.c:311  munlock        448KiB 7f175ec86000 - 7f175ecf6000 r-xp 0000d000 fd:00 8553210                    /usr/lib64/libm.so.6
21:18:25.039778 lvconvert[2436480] mm/memlock.c:311  munlock        368KiB 7f175ecf6000 - 7f175ed52000 r--p 0007d000 fd:00 8553210                    /usr/lib64/libm.so.6
21:18:25.039808 lvconvert[2436480] mm/memlock.c:311  munlock          4KiB 7f175ed52000 - 7f175ed53000 r--p 000d8000 fd:00 8553210                    /usr/lib64/libm.so.6
21:18:25.039823 lvconvert[2436480] mm/memlock.c:311  munlock          4KiB 7f175ed53000 - 7f175ed54000 rw-p 000d9000 fd:00 8553210                    /usr/lib64/libm.so.6

### Above "OL123456789" is displayed

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