Comment # 14 on bug 1183948 from Diego Ercolani

The test failed:
localhost:~ # systemctl status lvm2-lvmdbusd.service 
��������� lvm2-lvmdbusd.service - LVM2 D-Bus service
     Loaded: loaded (/usr/lib/systemd/system/lvm2-lvmdbusd.service; disabled;
vendor preset: disabled)
     Active: active (running) since Tue 2021-12-14 09:34:15 CET; 5min ago
       Docs: man:lvmdbusd(8)
   Main PID: 829 (lvmdbusd)
      Tasks: 4 (limit: 4670)
        CPU: 404ms
     CGroup: /system.slice/lvm2-lvmdbusd.service
             ������������������829 /usr/bin/python3 /usr/sbin/lvmdbusd

Dec 14 09:34:12 localhost systemd[1]: Starting LVM2 D-Bus service...
Dec 14 09:34:15 localhost systemd[1]: Started LVM2 D-Bus service.
localhost:~ # lvscan -v
  ACTIVE            '/dev/testlvm/teslv' [2.00 GiB] inherit
localhost:~ # lvs
  LV    VG      Attr       LSize Pool                Origin        Data%  Meta%
 Move Log Cpy%Sync Convert
  teslv testlvm Cwi-a-C--- 2.00g [testlvcache_cpool] [teslv_corig] 0.48   2.93 
          0.00            
localhost:~ # lvm-cache-stats /dev/testlvm/teslv 
Failed to get stats for '/dev/testlvm/teslv': The object with LVM ID
'/dev/testlvm/teslv' doesn't exist
localhost:~ #