http://bugzilla.suse.com/show_bug.cgi?id=1006952
http://bugzilla.suse.com/show_bug.cgi?id=1006952#c11
--- Comment #11 from zhilong liu ---
In addition steps;
linux-tjrh:~ # lvcreate -n lvtest -L 100M vg1
allocation/use_blkid_wiping=1 configuration setting is set while LVM is not
compiled with blkid wiping support.
Falling back to native LVM signature detection.
Logical volume "lvtest" created.
linux-tjrh:~ # lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync
Convert
lvtest vg1 -wi-a----- 100.00m
linux-tjrh:~ # modprobe dm-cache
linux-tjrh:~ # lvcreate --type cache -n CacheLV -L 100M vg1/lvtest /dev/loop1
Using default stripesize 64.00 KiB.
Default cache policy is not available.
linux-tjrh:~ # lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log
Cpy%Sync Convert
CacheLV vg1 Cwi---C--- 100.00m
lvtest vg1 -wi-a----- 100.00m
linux-tjrh:~ # lvs -o +cache_mode
LV VG Attr LSize Pool Origin Data% Meta% Move Log
Cpy%Sync Convert CacheMode
CacheLV vg1 Cwi---C--- 100.00m
lvtest vg1 -wi-a----- 100.00m
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