I still see the error at [1] but I don't know the exact cause. Since
this error occurs only on RHEL and CentOS and not on Ubuntu (see [2]
and [3]), I suspect either I changed some code in qa/tasks/cephfs that
was specific to these distros or my code exposes a bug in ceph-fuse on
these distros.
[1]
https://gist.github.com/rishabh-d-dave/eef6cdb21f54a95edec25d412e52d09e#fil…
[2]
http://pulpito.ceph.com/rishabh-2020-05-14_09:40:39-fs-wip-rishabh-15070-di…
[3]
http://pulpito.ceph.com/rishabh-2020-05-14_07:41:09-fs-wip-rishabh-15070-di…