Bert Freudenberg uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-bf.624.mcz
==================== Summary ====================
Name: Morphic-bf.624 Author: bf Time: 12 September 2012, 5:47:14.352 pm UUID: 2b4cb6c4-49df-4186-b43d-2c3c6cf7fd1b Ancestors: Morphic-ul.623
Do not freeze when an alarm callback raises an error. Thanks to John McKeon for finding the cause!
=============== Diff against Morphic-ul.623 ===============
Item was changed: ----- Method: WorldState>>triggerAlarmsBefore: (in category 'alarms') ----- triggerAlarmsBefore: nowTime "Trigger all pending alarms that are to be executed before nowTime." + | triggered | lastAlarmTime ifNil:[lastAlarmTime := nowTime]. (nowTime < lastAlarmTime or:[nowTime - lastAlarmTime > 10000]) ifTrue:[self adjustAlarmTimes: nowTime]. + triggered := OrderedCollection new. self lockAlarmsDuring: [:pending | + (pending isEmpty not and: [pending first scheduledTime < nowTime]) + ifTrue: [triggered add: pending removeFirst]]. + triggered do: [:alarm | alarm value: nowTime]. - [pending isEmpty not and:[pending first scheduledTime < nowTime]] - whileTrue:[pending removeFirst value: nowTime]. - ]. lastAlarmTime := nowTime.!