I just ran some searches on this without hits (like Google the oesf for ["sudden reboot" OR "unexpected reboot"] ) so toss it out here for feedback.
My 24/7/365 C860 (stock Sharp ROM) has recently taken to doing it's own abrupt reboots. Does not seem to depend on how many apps are running or which ones. Has even happened right in the middle of text entry to text editors among other spots.
The restart shows a quick flash of console with some text that flys by too fast to catch then a restart that seems to be quicker than full reboot. It usually leaves the user created desktop tabs & programs without icons.
Sometimes a single restart of Qtopia fixes this but other times it takes two restarts to clear it up.
Whole thing is extremely intermittant but seems to happen in clusters of 2 or 3 closely spaced incidents.
I'm open for suggestions on how to best track this glitch down, oh wise & noble paladins of the Zaurii.
Go ahead .... make my Z.