If a hardware error is cccurred, mcelog does not log into /var/log/messages after stopping systemd-journald

[zhuofeng6]

Normally, if a hardware error occurs, mcelog writes the error to /var/log/messages.

If systemd-journald is restarted, mcelog still writes logs to /var/log/messages.

systemctl restart systemd-journald

But if I'm carrying out the following command (Because to stop systemd-journald, you need to stop systemd-journald-dev-log.socket and systemd-journald.socket.)

systemctl stop systemd-journald-dev-log.socket
systemctl stop systemd-journald.socket
systemctl stop systemd-journald
systemctl start systemd-journald

Then if a hardware error occurs, the log of the mcelog error is not written to /var/log/messages.

To continue writing logs to /var/log/messages, we need to restart mcelog.

Is this normal? or it is a bug in mcelog?