Thanks to the help of John I found out that the image crashes when the method 
CommandHistory class >> forgetAllGrabCommandsFrom: gets excuted.
I have the impression that the method ProtoObject >> nextObject is failing.
Does anybody know how this can happen and what can be done in that case?

I know a scenario that I need to execute in my image so that the crash happens on 
start-up. When I save the image after I have executed this scenario, the image 
crashes on start-up for sure. Do you know what kind of code could cause this 
primitive in ProtoObject >> nextObject to fail?

This scenario builds up a Mondrian graph, so Morphic is heavily used. The size of the 
graph doesn't matter though.


David

> If this is on a macintosh there should be a crash log in 
> ~/Library/Logs/CrashReporter/Squeak...
> If so send me a copy.
> 
> Also I'd be glad to work with you to build a more current VM with 
> message tracing on.
> 
> Also you can start the VM binary using gdb   then run, then when it crashs
> type in  call (int) printAllStacks()
> to get a stack trace of all the processes running
> 
> 
> On Apr 14, 2008, at 8:31 AM, David Röthlisberger wrote:
> 
>> Hello,
>>
>> I have an image (3.9, several additional packages loaded) that crashes 
>> as soon as I start it. It loads, then I see the World for maybe a 
>> second, and then, boom!, it's gone.
>> Is there any possibility to see what code has been executed just 
>> before the crash to debug the problem? I do not get any debugger or 
>> any error msg that I could use to locate the problem. Do you have any 
>> hints?
>>
>> I heard of a VM that logs every msg send, it's described here, at the 
>> bottom:
>> http://www.smalltalkconsulting.com/squeak.html
>> This VM unfortunately doesn't work properly on my system, an Intel Mac.
>>
>> Any hints are highly appreciated.
>>
>> Cheers,
>> David
>>
> 
> -- 
> ===========================================================================
> John M. McIntosh <johnmci at smalltalkconsulting.com>
> Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
> ===========================================================================
> 
> 
>