Comment 8 for bug 1891567

I have tested this ussuri-proposed packages and it fixes the issue.

Setup a Nautilus cluster with the following versions:

# ceph versions
{
    "mon": {
        "ceph version 14.2.9 (581f22da52345dba46ee232b73b990f06029a2a0) nautilus (stable)": 1
    },
    "mgr": {
        "ceph version 14.2.9 (581f22da52345dba46ee232b73b990f06029a2a0) nautilus (stable)": 1
    },
    "osd": {
        "ceph version 14.2.9 (581f22da52345dba46ee232b73b990f06029a2a0) nautilus (stable)": 3
    },
    "mds": {},
    "overall": {
        "ceph version 14.2.9 (581f22da52345dba46ee232b73b990f06029a2a0) nautilus (stable)": 5
    }
}

# dpkg -l | grep -i ceph
ii ceph 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 distributed storage and file system
ii ceph-base 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 common ceph daemon libraries and management tools
ii ceph-common 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 common utilities to mount and interact with a ceph storage cluster
ii ceph-mgr 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 manager for the ceph distributed file system
ii ceph-mon 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 monitor server for the ceph storage system
ii ceph-osd 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 OSD server for the ceph storage system
ii libcephfs2 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 Ceph distributed file system client library
ii python3-ceph-argparse 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 Python 3 utility libraries for Ceph CLI
ii python3-cephfs 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 Python 3 libraries for the Ceph libcephfs library
ii python3-rados 14.2.9-0ubuntu0.19.10.1~cloud0 amd64 Python 3 libraries for the Ceph librados library

Then upgraded the cluster to:

# ceph versions
{
    "mon": {
        "ceph version 15.2.3 (d289bbdec69ed7c1f516e0a093594580a76b78d0) octopus (stable)": 1
    },
    "mgr": {
        "ceph version 15.2.3 (d289bbdec69ed7c1f516e0a093594580a76b78d0) octopus (stable)": 1
    },
    "osd": {
        "ceph version 15.2.3 (d289bbdec69ed7c1f516e0a093594580a76b78d0) octopus (stable)": 3
    },
    "mds": {},
    "overall": {
        "ceph version 15.2.3 (d289bbdec69ed7c1f516e0a093594580a76b78d0) octopus (stable)": 5
    }
}

# dpkg -l | grep -i ceph
ii ceph 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 distributed storage and file system
ii ceph-base 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 common ceph daemon libraries and management tools
ii ceph-common 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 common utilities to mount and interact with a ceph storage cluster
ii ceph-mds 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 metadata server for the ceph distributed file system
ii ceph-mgr 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 manager for the ceph distributed file system
ii ceph-mgr-modules-core 15.2.3-0ubuntu0.20.04.2~cloud0 all ceph manager modules which are always enabled
ii ceph-mon 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 monitor server for the ceph storage system
ii ceph-osd 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 OSD server for the ceph storage system
ii libcephfs2 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 Ceph distributed file system client library
ii python3-ceph-argparse 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 Python 3 utility libraries for Ceph CLI
ii python3-ceph-common 15.2.3-0ubuntu0.20.04.2~cloud0 all Python 3 utility libraries for Ceph
ii python3-cephfs 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 Python 3 libraries for the Ceph libcephfs library
ii python3-rados 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 Python 3 libraries for the Ceph librados library
ii python3-rbd 15.2.3-0ubuntu0.20.04.2~cloud0 amd64 Python 3 libraries for the Ceph librbd library

Then tested cluster as noted in the description (set `osd_inject_bad_map_crc_probability` to 1 on one OSD and then restart a different OSD). And observed no OSD crash happened and the cluster is OK.