Hi, I'm having a problem with Delay after a system crash (yeah, the real problem is the system crash, but I'm also having this one after it happens) I have several processes running who monitor some state, and synchronize some file outs (the sync is made using a mutex). The original crash seems to be happening somewhere there. After the crash, I restart the image tries to reconstruct the data (taking the files previously saved) and I'm getting this error: THERE_BE_DRAGONS_HERE Error: This Delay has already been scheduled. 8 February 2011 5:00:05 am VM: unix - i686 - linux-gnu - Croquet Closure Cog VM [CoInterpreter VMMaker-oscog.35] Image: Pharo-1.1.1-- [Latest update: #11414] SecurityManager state: Restricted: false FileAccess: true SocketAccess: true Working Dir /home/administrator/emanual Trusted Dir /home/administrator/emanual/secure Untrusted Dir /home/administrator/emanual/My Squeak Delay(Object)>>error: Receiver: a Delay(10 msecs; 10 msecs remaining) Arguments and temporary variables: aString: 'This Delay has already been scheduled.' Receiver's instance variables: delayDuration: 10 resumptionTime: 18218709 delaySemaphore: a Semaphore(a Process in [] in Delay>>wait) beingWaitedOn: true Delay>>schedule Receiver: a Delay(10 msecs; 10 msecs remaining) Arguments and temporary variables: Receiver's instance variables: delayDuration: 10 resumptionTime: 18218709 delaySemaphore: a Semaphore(a Process in [] in Delay>>wait) beingWaitedOn: true Delay>>wait Receiver: a Delay(10 msecs; 10 msecs remaining) Arguments and temporary variables: Receiver's instance variables: delayDuration: 10 resumptionTime: 18218709 delaySemaphore: a Semaphore(a Process in [] in Delay>>wait) beingWaitedOn: true InputEventPollingFetcher>>waitForInput Receiver: an InputEventPollingFetcher Arguments and temporary variables: Receiver's instance variables: eventHandlers: an OrderedCollection(a RFBEventSensor an UserInterruptHandler) fetcherProcess: a Process in Debugger class>>openOn:context:label:contents:full...etc... inputSemaphore: a Semaphore() InputEventPollingFetcher(InputEventFetcher)>>eventLoop Receiver: an InputEventPollingFetcher Arguments and temporary variables: eventBuffer: #(0 0 0 0 0 0 0 0) type: 0 window: nil Receiver's instance variables: eventHandlers: an OrderedCollection(a RFBEventSensor an UserInterruptHandler) fetcherProcess: a Process in Debugger class>>openOn:context:label:contents:full...etc... inputSemaphore: a Semaphore() [] in InputEventPollingFetcher(InputEventFetcher)>>installEventLoop Receiver: an InputEventPollingFetcher Arguments and temporary variables: Receiver's instance variables: eventHandlers: an OrderedCollection(a RFBEventSensor an UserInterruptHandler) fetcherProcess: a Process in Debugger class>>openOn:context:label:contents:full...etc... inputSemaphore: a Semaphore() [] in BlockClosure>>newProcess Receiver: [self eventLoop] Arguments and temporary variables: Receiver's instance variables: outerContext: InputEventPollingFetcher(InputEventFetcher)>>installEventLoop startpc: 48 numArgs: 0 --- The full stack --- Delay(Object)>>error: Delay>>schedule Delay>>wait InputEventPollingFetcher>>waitForInput InputEventPollingFetcher(InputEventFetcher)>>eventLoop [] in InputEventPollingFetcher(InputEventFetcher)>>installEventLoop [] in BlockClosure>>newProcess Any idea what can be causing this? I also noticed that there is another error when the image restarts: 'Trying to activate Delay twice' which is thrown on Delay class>>#startUp Any idea what can be happening? Cheers, Esteban