A Core Dump Occurs on the Client Process After the Ceph Server Is Restarted

Symptom

When the Ceph server is faulty, there is a low probability that a core dump occurs on the client. The stack is as follows:

Key Process and Cause Analysis

This problem is caused by Ceph 14.2.8. It is reported at https://tracker.ceph.com/issues/43808.

The Pull Request (PR) for solving this problem is https://github.com/ceph/ceph/pull/33742.

This PR is merged into the branch of version n in 14.2.10. The summary PR is https://github.com/ceph/ceph/pull/33820.

Conclusion and Solution

Currently, the open source bug is not fixed on the Global Cache client. To avoid this problem, you need to manually adapt the patch.