Bug#216933: update; log
here's my 2c , just a long shot ...
did you consider that it could be a hardware problem,
e.g. in the videocard ?
i heard of thermal defects that can do things like this,
e.g. a cracked solderjoint opening/closing a connection
depending on temperature
if you take your harddisk to another box,
then does problem appear at that box ?
anything unusual about 30-31 oct ?
(all bugs went on strike to protest harassment by debian developers ? :-)
i hope this helps,
> 26 Oct>> fail: 5:10 pm; waited until 9:30pm>reboot @12:19 am
> 27 Oct>> fail: ~1:10 pm> fixed itself ~1:30 pm
> 28 Oct>> fail: 3:02 pm> fixed itself by 3:50 pm
>> fail: 7:30 pm>reboot@10:26 pm
> 29 Oct>> fail: 1:54 pm> fixed itself by 5:57 pm
>> fail: 7:14 pm> reboot @8:24 pm
>> 30-31 Oct
> 1 Nov>> fail: 8:14 pm> immediate reboot
>> fail: 9:07 pm> immediate reboot
> 2 Nov>> fail: 6 pm> immediate reboot
> 3 Nov>> fail: 11:30 am> immediate reboot
>> fail: 10:43 pm> uptime: 3:50 immediate reboot