Hi, The minimal file with which I was able to reproduce the issue is: [Unit] Description="Example" SuccessAction=reboot-force [Service] Type=simple ExecStart=/bin/false Restart=on-failure I can reproduce it both on my buildroot system with systemd 247 and fresh Fedora 35 minimal install with v249.9-1.fc35 . After commenting out "Restart=on-failure" the reboots are not happening, and the service is "failed" as expected. Commenting out "SuccessAction=reboot-force" but leaving "Restart=on-failure" not commented causes the service to restart without a system reboot, as expected. Michał