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