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Bug #20484
closedsnap can be removed while it is been using by rbd-nbd device
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Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
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ceph-qa-suite:
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Crash signature (v1):
Crash signature (v2):
Description
I maped a snap to rbd-nbd device by cmd:
- rbd-nbd map rbd/test@snap
but if i remove the snap accidentally, then i found the cmd: 'rbd-nbd list-mapped' can show my map list
but the nbd device disappeared look by cmd lsblk
so i think before we map a snap to a nbd device, we should protect the snap.
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