Just keeps rebooting endlessly for me.  

Edit: Managed to stop it rebooting by disabling watchdog:

"Once the watchdog is enabled, it is possible to get in a reboot loop. If this happens, disable the system watchdog by quick edit of /etc/watchdog.conf after boot and comment out watchdog-device = /dev/watchdog. The cgminer API based watchdog script can be disabled by using the UI checkbox or commenting out test-binary = /opt/scripta/bin/wdog.py in the same config file. You will have about 30 seconds each loop to try and unscrew things."

Will report back on the stability later...