Bug #35702: assert in execute_flatten() when flattening a clone with no overlap - rbd - Ceph

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Bug #35702

closed

assert in execute_flatten() when flattening a clone with no overlap

Added by Ilya Dryomov over 5 years ago. Updated over 5 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Jason Dillaman

Target version:

% Done:

Source:

Tags:

Backport:

luminous,mimic

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

Crash signature (v1):

Crash signature (v2):

Description

$ rbd create --size 1 img
$ rbd snap create img@snap
$ rbd clone img@snap cloneimg
$ rbd resize --size 0 --allow-shrink cloneimg
$ rbd flatten cloneimg

In function 'void librbd::Operations<ImageCtxT>::execute_flatten(librbd::ProgressContext&, Context*) [with ImageCtxT = librbd::ImageCtx]' thread 7f7e0cff9700 time 2018-09-05 16:53:52.892665
405: FAILED ceph_assert(m_image_ctx.parent != __null)

402   }
403
404   ::SnapContext snapc = m_image_ctx.snapc;
405   ceph_assert(m_image_ctx.parent != NULL);
406
407   uint64_t overlap;

Happens with old style clones too.

Related issues 2 (0 open — 2 closed)