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Bug #12695
closedrbd flatten makes clone's snap crash
% Done:
0%
Source:
other
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Description
ceph version:0.94.2
cluster:3 nodes,each node has 10 OSDs and 1 mon.
Operation?
(1)rbd create img1 --size 256 --image-format 2
(2)rbd map img1 ---to-->/dev/rbd1
(3)mkfs.xfs /dev/rbd1
(4)rbd unmap /dev/rbd1
(5)rbd snap create img1@snap_img1
(6)rbd snap protect img1@snap_img1
(7)rbd clone img1@snap_img1 clone1_img1
(8)rbd snap create clone1_img1@snap_clone1
(9)rbd map clone1_img1@snap_clone1 ---to--->/dev/rbd1
(10)mount -o ro /dev/rbd1 /mnt (success!)
(11)umount /dev/rbd1
(12)rbd unmap /dev/rbd1
(13)rbd flatten clone1_img1
(14)rbd map clone1_img1@snap_clone1 ---to--->/dev/rbd1
(15)mount o ro /dev/rbd1 /mnt (failed!) -> mount: unknown filesystem type '(null)'
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