Bug #23528: rbd-nbd: EBUSY when do map - rbd - Ceph

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Bug #23528

closed

rbd-nbd: EBUSY when do map

Added by Li Wang about 6 years ago. Updated about 6 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Target version:

% Done:

Source:

Tags:

Backport:

luminous,jewel

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

Crash signature (v1):

Crash signature (v2):

Description

When doing rbd-nbd map, if the Ceph service is not available,
the codes will wait on rados.connect(), unless killing the process.
In that case, the close_nbd logic is skipped with NBD_CLEAR_SOCK ioctl
not called. On the CentOS 7 kernel, it leaves nbd->file not cleared, which
causes the subsequent map requests return EBUSY

Related issues 2 (0 open — 2 closed)