Bug #15404: KVM: terminate called after throwing an instance of 'ceph::buffer::end_of_buffer' - rbd - Ceph

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Bug #15404

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KVM: terminate called after throwing an instance of 'ceph::buffer::end_of_buffer'

Added by Konrad Gutkowski about 8 years ago. Updated almost 7 years ago.

Status:

Can't reproduce

Priority:

Normal

Assignee:

Target version:

% Done:

Source:

Tags:

Backport:

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

Ceph - v0.94.5, Ceph - v9.2.1

ceph-qa-suite:

Pull request ID:

Crash signature (v1):

Crash signature (v2):

Description

KVM instances throwing "terminate called after throwing an instance of 'ceph::buffer::end_of_buffer'" after adding overlay to storage pool when ceph user not allowed to access "cache" tier (by misconfiguration, or any other reason).

Command flow which led to above situation:

ceph osd pool create cache-ssd 256 256 replicated ssd
ceph osd pool set cache-ssd size 2
ceph osd pool set cache-ssd min-size 1
ceph osd pool set-quota cache-ssd max_bytes 2048G
ceph osd tier add volumes cache-ssd
ceph osd tier cache-mode cache-ssd writeback
ceph osd pool set cache-ssd target_max_bytes 2199023255552
ceph osd tier set-overlay volumes cache-ssd
< at this point vm's crashed, or logged fs errors >

Obviously the access problem is understood, but it could be handled better. Access on the dev level could be blocked (as per other situations when cluster becomes unavailable) till access should be established, or ceph tool could compare access rights on both pools and require some force parameter to bypass, or both.

client:
ceph version 0.94.5 (9764da52395923e0b32908d83a9f7304401fee43)

osd, mon:
ceph version 9.2.1 (752b6a3020c3de74e07d2a8b4c5e48dab5a6b6fd)