cephfs-top causes 16 mgr modules have recently crashed

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Hello

When I run cephfs-top it causes mgr module crash. Can you please tell me
the reason?

My environment:
My ceph version 17.2.6
Operating System: Ubuntu 22.04.2 LTS
Kernel: Linux 5.15.0-84-generic

I created the cephfs-top user with the following command:
ceph auth get-or-create client.fstop mon 'allow r' mds 'allow r' osd 'allow
r' mgr 'allow r' > /etc/ceph/ceph.client.fstop.keyring

This is the crash report:

root@ud-01:~# ceph crash info
2024-01-22T21:25:59.313305Z_526253e3-e8cc-4d2c-adcb-69a7c9986801
{
    "backtrace": [
        "  File \"/usr/share/ceph/mgr/stats/module.py\", line 32, in
notify\n    self.fs_perf_stats.notify_cmd(notify_id)",
        "  File \"/usr/share/ceph/mgr/stats/fs/perf_stats.py\", line 177,
in notify_cmd\n    metric_features =
int(metadata[CLIENT_METADATA_KEY][\"metric_spec\"][\"metric_flags\"][\"feature_bits\"],
16)",
        "ValueError: invalid literal for int() with base 16: '0x'"
    ],
    "ceph_version": "17.2.6",
    "crash_id":
"2024-01-22T21:25:59.313305Z_526253e3-e8cc-4d2c-adcb-69a7c9986801",
    "entity_name": "mgr.ud-01.qycnol",
    "mgr_module": "stats",
    "mgr_module_caller": "ActivePyModule::notify",
    "mgr_python_exception": "ValueError",
    "os_id": "centos",
    "os_name": "CentOS Stream",
    "os_version": "8",
    "os_version_id": "8",
    "process_name": "ceph-mgr",
    "stack_sig":
"971ae170f1fff7f7bc0b7ae86d164b2b0136a8bd5ca7956166ea5161e51ad42c",
    "timestamp": "2024-01-22T21:25:59.313305Z",
    "utsname_hostname": "ud-01",
    "utsname_machine": "x86_64",
    "utsname_release": "5.15.0-84-generic",
    "utsname_sysname": "Linux",
    "utsname_version": "#93-Ubuntu SMP Tue Sep 5 17:16:10 UTC 2023"
}


Best regards.
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