Hi -
Just FYI, I've updated http://bugs.squeak.org/view.php?id=6576 with another change set containing a few relevant tweaks to Delay. The most important one is probably the one which ensures that Delays get unscheduled if the process they wait for is terminated. The problem is that delays which are scheduled are kept in the SuspendedDelays even after "their" process terminates. So that, for example a "(Delay forSeconds: 9999999) wait" (with an Alt-Period following it) would leave that delay being scheduled for expiry 100 days from now although its process is long gone.
The tweaks also ensure that delays which actually expire in Semaphore>>waitTimeoutMSecs: don't get unscheduled twice (since unscheduling is a linear search over all scheduled delays it should be avoided).
Lastly, there is a bit of bullet-proofing to Delay>>handleTimerEvent since each poll of the msecs clock has the potential to overflow and needs to be guarded explicitly. The tweaks make sure there is only one such poll and consequently only one place to check. Except from another obscure situation which the change set addresses as well.
In any case, it's a nice roundup for the Delay changes. If you're using the first one, you should probably use this one as well.
Cheers, - Andreas