** Description changed:
- lvm2 version:
+ version info:
+ kern:
+ uname -a
+ Linux cmp011 4.15.0-46-generic #49~16.04.1-Ubuntu SMP Tue Feb 12 17:45:24 UTC
2019 x86_64 x86_64 x86_64 GNU/Linux
+
+ lvm2:
```
- dpkg -l|grep lvm
+ dpkg -l|grep lvm
ii liblvm2app2.2:amd64 2.02.133-1ubuntu10
amd64 LVM2 application library
ii liblvm2cmd2.02:amd64 2.02.133-1ubuntu10
amd64 LVM2 command library
- ii lvm2
+ ii lvm2
```
```
root@cmp011:~# dmsetup status|grep error
- cinder--volume-volume--75ff72d6--22fb--43b1--85cd--519a86e75c18: 0 10485760
error
+ cinder--volume-volume--75ff72d6--22fb--43b1--85cd--519a86e75c18: 0 10485760
error
```
Always reminded that in use, can't find out the process used。
```
lvs |grep 519a86e75c18
- volume-75ff72d6-22fb-43b1-85cd-519a86e75c18 cinder-volume Vwi-aotz--
5.00g cinder-volume-pool 100.00 100.00
+ volume-75ff72d6-22fb-43b1-85cd-519a86e75c18 cinder-volume Vwi-aotz--
5.00g cinder-volume-pool 100.00 100.00
lvremove -f /dev/cinder-volume/volume-75ff72d6-22fb-43b1-85cd-519a86e75c18
- Logical volume cinder-volume/volume-75ff72d6-22fb-43b1-85cd-519a86e75c18 in
use
+ Logical volume cinder-volume/volume-75ff72d6-22fb-43b1-85cd-519a86e75c18 in
use
```
dmsetup also cannot be deleted：
dmsetup suspend
dmsetup remove
--
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https://bugs.launchpad.net/bugs/1869666
Title:
Wrong thin pool lv cannot clean up properly
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https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1869666/+subscriptions
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