[Pkg-libvirt-maintainers] Bug#990025: libvirtd massively logs "Failed to open file '.../xxx.qcow2': No such file or directory"

[laalaa laalaa]

Package: libvirt-daemon
Version: 7.0.0-3

When boot up, libvirtd log hundreds lines of 'Failed to open file '.../xxx.qcow2': No such file or directory' messages repeatedly. The qcow2 files were defined in VM configs but these qcow2 files are no longer exist. Related bug report and patch is available:

https://bugzilla.redhat.com/show_bug.cgi?id=1692100

Below is the log:

# journalctl
-- Journal begins at Fri 2021-06-18 10:10:15 HKT, ends at Fri 2021-06-18 11:59:21 HKT. --
Jun 18 10:10:15 HOSTNAME systemd-journald[48407]: Received SIGTERM from PID 1 (systemd).
Jun 18 10:10:15 HOSTNAME systemd[1]: systemd-journald.service: Succeeded.
Jun 18 10:10:15 HOSTNAME systemd[1]: Stopped Journal Service.
Jun 18 10:10:15 HOSTNAME systemd[1]: Starting Journal Service...
Jun 18 10:10:15 HOSTNAME systemd-journald[9354]: Journal started
Jun 18 10:10:15 HOSTNAME systemd-journald[9354]: System Journal (/var/log/journal/###) is 96.0M, max 100.0M, 3.9M free.
Jun 18 10:10:15 HOSTNAME systemd[1]: Started Journal Service.
Jun 18 10:10:15 HOSTNAME systemd[1]: Starting Flush Journal to Persistent Storage...
Jun 18 10:10:15 HOSTNAME systemd-journald[9354]: System Journal (/var/log/journal/###) is 96.0M, max 100.0M, 3.9M free.
Jun 18 10:10:15 HOSTNAME systemd[1]: Finished Flush Journal to Persistent Storage.
Jun 18 10:10:15 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM1.qcow2': No such file or directory
Jun 18 10:10:15 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM2.qcow2': No such file or directory
Jun 18 10:10:15 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM3.qcow2': No such file or directory
Jun 18 10:10:15 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM4.qcow2': No such file or directory
Jun 18 10:10:15 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM5.qcow2': No such file or directory
Jun 18 10:10:15 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM6.qcow2': No such file or directory
Jun 18 10:10:15 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM7.qcow2': No such file or directory
Jun 18 10:10:15 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM8.qcow2': No such file or directory
Jun 18 10:10:15 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM9.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME systemd[1]: Reloading.
Jun 18 10:10:16 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM1.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM2.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM3.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM4.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM5.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM6.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM7.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM8.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME libvirtd[1202]: Failed to open file '/opt/VM9.qcow2': No such file or directory
Jun 18 10:10:16 HOSTNAME systemd[1]: Reloading.
...
(hundreds of similar lines)
...
Jun 18 10:11:34 HOSTNAME systemd[1]: Starting Self Monitoring and Reporting Technology (SMART) Daemon...
Jun 18 10:11:34 HOSTNAME systemd-timesyncd[9282]: Timed out waiting for reply from 222.166.0.137:123 (1.debian.pool.ntp.org).