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Bug #19832
closedPotential IO hang if image is flattened while read request is in-flight
Status:
Resolved
Priority:
Normal
Assignee:
-
Target version:
-
% Done:
0%
Source:
Tags:
Backport:
kraken,jewel,hammer
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
If the child object doesn't exist and the parent is removed after the IO started, the IO will hang w/o completing.
https://github.com/ceph/ceph/blob/master/src/librbd/io/ObjectRequest.cc#L207
if (image_ctx->parent == NULL) {
ldout(image_ctx->cct, 20) << "parent is gone; do nothing" << dendl;
m_state = LIBRBD_AIO_READ_FLAT;
finished = false;
break;
}
The "finished = false" line should be removed
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