systemd becomes unresponsive

Issue

When trying to updating glibc package in the context of any service unit in rescue mode, systemd becomes unresponsive, while outputting the following message repeatedly:

systemd[1]: Looping too fast. Throttling execution a little.

Once systemd process becomes unresponsive, any systemctl commands relevant to D-Bus connections fail. For example, the following systemctl commands cannot be executed:

• systemctl start
• systemctl stop
• systemctl restart
• systemctl poweroff
• systemctl reboot