On Dec 1, 2011, at 10:16 PM, Nicolas Cellier wrote:
> I only had a look in Pharo 1.4
> It sounds like a subtle bug related to introduction of
> SubclassResponsibility in Pharo.
> If you revert Object>>subclassResponsibility to its previous version
> you get a more reliable error.
What would be your hypothesis? Because I'm stuck.
error: is also signaling an exception
error: aString
"Throw a generic Error exception."
^Error new signal: aString
So I wonder why one is more robust.
>
> Nicolas
>
> 2011/12/1 Larry White <[email protected]>:
>> I was able to replicate with a clean version of the Seaside 3.0.6 One Click
>> download by executing Stream #basicNew in a workspace. It did work a couple
>> times ok using "do it" from the menu, but seems to lock pretty regularly
>> using print or explore keyboard shortcuts.
>>
>> thanks.
>>
>>
>>
>> On Thu, Dec 1, 2011 at 1:33 PM, Larry White <[email protected]> wrote:
>>>
>>> I can do it with control-P (print) in the Workspace. I just did it with a
>>> single try, though sometimes it takes more than one. Speed isn't an issue,
>>> I can wait 10 minutes and see it happen sometimes..
>>>
>>> I have to take a break now, but when I get a few minutes, I'll try again
>>> with a fresh install of the latest Seaside one-click for the mac.
>>>
>>> thanks.
>>>
>>> On Thu, Dec 1, 2011 at 1:20 PM, Schwab,Wilhelm K <[email protected]>
>>> wrote:
>>>>
>>>> I just tried to hang 1.1.1 (using a traditional linux vm) and a 1.4 image
>>>> with a Cog vm (also linux). No problems, but I do have questions that
>>>> might
>>>> be important to others trying to reproduce it:
>>>>
>>>> (1) how fast do you do this?
>>>> (2) do you inspect the instances, or just let them get gc'd immediately?
>>>>
>>>> Bill
>>>>
>>>>
>>>>
>>>> ________________________________
>>>> From: [email protected]
>>>> [[email protected]] on behalf of Larry White
>>>> [[email protected]]
>>>> Sent: Thursday, December 01, 2011 12:56 PM
>>>> To: [email protected]
>>>> Subject: Re: [Pharo-project] VM freezes sending #basicNew to Stream
>>>> subclass
>>>>
>>>> I can do it with
>>>>
>>>> Stream basicNew.
>>>>
>>>> but I have to invoke it twice. The first time it works ok.
>>>>
>>>>
>>>>
>>>> On Thu, Dec 1, 2011 at 12:48 PM, Stéphane Ducasse
>>>> <[email protected]> wrote:
>>>>>
>>>>> gary
>>>>>
>>>>> can you post the smallest code that makes the system hangs?
>>>>>
>>>>> Stef
>>>>>
>>>>> On Dec 1, 2011, at 4:48 PM, Larry White wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> Throwing this out there because it may be a bug.
>>>>>>
>>>>>> I'm running the Seaside one-click install on OS X Lion.
>>>>>> Pharo1.3
>>>>>> Latest update: #13302
>>>>>>
>>>>>> I can reliably cause my VM to freeze up and need to Force-Quit it from
>>>>>> the OS.
>>>>>>
>>>>>> I'm implementing (copying) the probability logic from the blue book.
>>>>>> When I tried to create an instance of the Binomial class, the system
>>>>>> hung. I
>>>>>> can replicate the problem by sending the message #basicNew to
>>>>>> ProbabilityDistribution. ProbabilityDistribution is a direct subclass of
>>>>>> Stream and I haven't overridden or modified #basicNew.
>>>>>>
>>>>>> What's happening is that it fails in the BlockClosure [anObject doit],
>>>>>> but only when I instantiate a member of this particular class hierarchy.
>>>>>> In
>>>>>> the probability classes, a #doIt in a Workspace hits the line "self
>>>>>> suspend"
>>>>>> in the #terminate method of Process and the VM hangs there.
>>>>>>
>>>>>> I believe they had ProbabilityDistribution subclass from Stream
>>>>>> because sampling from a distribution is like reading from a Stream, but I
>>>>>> don't think any there's any actual shared code, so I switched the
>>>>>> superclass
>>>>>> of ProbabilityDistribution to Object and the code works fine now.
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>> Larry
>>>>>
>>>>>
>>>>
>>>
>>
>
