From what I've learned so far: All VM workunits start with a relatively short deadline of 3 weeks. Unlike the XXL tasks which have to be extended manually, there is a trickle mechanism and a server-sided script or program which should extend the deadline, provided the host is still on it and online (at least from time to time).
However, the server-sided script seems not to work in all cases until now. That is why ChristianB has manually extended today all VM tasks still running (I guess it was an extension of one month, as far as I can see).
The BOINC manager does not 'know' if due date has been changed on the server or not. I assume that is the same case with the XXL tasks (never did those)?
Hope that helps (and I got it right).




