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Bug #20789
closedCompare and write against a clone can result in failure
Status:
Resolved
Priority:
High
Assignee:
Jason Dillaman
Target version:
-
% Done:
0%
Source:
Tags:
Backport:
luminous
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
If the block hasn't been copied-up to the clone from the parent, and librbd attempts to perform a "exec copy-up, cmpext, and write" in the same transaction, it will fail since the "cmpext" will fail to read the "copy-up" data.
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