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kill -9 MyClass allInstances

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laurent laffont

kill -9 MyClass allInstances

Hi,

It seems I've messed up something on Autotest unit tests and I have an Autotest instance running, I don't know where it's referenced. I've tried Smalltalk>>#garbageCollect and #garbageCollectMost .... still here.

How can I find why an instance is not garbage collected ?

How to kill it ?

Cheers

Laurent Laffont

http://pharocasts.blogspot.com/
http://magaloma.blogspot.com/

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Mariano Martinez Peck

Re: kill -9 MyClass allInstances

2010/7/1 laurent laffont <[hidden email]>

Hi,

It seems I've messed up something on Autotest unit tests and I have an Autotest instance running, I don't know where it's referenced. I've tried Smalltalk>>#garbageCollect and #garbageCollectMost .... still here.

How can I find why an instance is not garbage collected ?

Check PointerFinder class and its class comment.

Also check class PointerExplorer.

Finally, explore the object you want, and then, in the explorer, right click and "chase pointers".

I attach an screenshot as help.

Cheers

Mariano

How to kill it ?

Cheers

Laurent Laffont

http://pharocasts.blogspot.com/
http://magaloma.blogspot.com/

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Screen shot 2010-07-01 at 9.27.08 AM.png (279K) Download Attachment

cedreek

Re: kill -9 MyClass allInstances

In reply to this post by laurent laffont

Hi Laurent,

Hi,

It seems I've messed up something on Autotest unit tests and I have an Autotest instance running, I don't know where it's referenced. I've tried Smalltalk>>#garbageCollect and #garbageCollectMost .... still here.

How can I find why an instance is not garbage collected ?
How to kill it ?

You have to inspect/explore the instance of Autotest running.

Then you should have some right click menu options that can help you -> "chase pointers" . There's also "inspect objects pointing to this value" and "explore pointers".

Once you identified the objet that retains your instance, you have to "delete it", then garbage collect will work.

hth,

Cheers

Laurent Laffont

http://pharocasts.blogspot.com/
http://magaloma.blogspot.com/

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Cédrick

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Göran Krampe

Re: kill -9 MyClass allInstances

In reply to this post by laurent laffont

On 07/01/2010 08:53 AM, laurent laffont wrote:
> Hi,
>
> It seems I've messed up something on Autotest unit tests and I have an
> Autotest instance running, I don't know where it's referenced. I've
> tried Smalltalk>>#garbageCollect and #garbageCollectMost .... still here.
>
> How can I find why an instance is not garbage collected ?
> How to kill it ?

You can't "kill it", you can only get rid of references to it. So the
problem is to find those references. There are some different tools for
that, I tend to use:

PointerFinder on: MyClass allInstances first

...and then take action from that info.

There are some tricky things like some ActionMap somewhere and the Undo
mechanism IIRC that tend to hold onto stuff. And of course, if you have
some debugger hanging around... :). Or sloppy class variables etc.

regards, Göran

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laurent laffont

Re: kill -9 MyClass allInstances

Thank you all !

Laurent Laffont

http://pharocasts.blogspot.com/
http://magaloma.blogspot.com/

2010/7/1 Göran Krampe <[hidden email]>

On 07/01/2010 08:53 AM, laurent laffont wrote:

Hi,

It seems I've messed up something on Autotest unit tests and I have an
Autotest instance running, I don't know where it's referenced. I've
tried Smalltalk>>#garbageCollect and #garbageCollectMost .... still here.

How can I find why an instance is not garbage collected ?
How to kill it ?

You can't "kill it", you can only get rid of references to it. So the problem is to find those references. There are some different tools for that, I tend to use:

PointerFinder on: MyClass allInstances first

...and then take action from that info.

There are some tricky things like some ActionMap somewhere and the Undo mechanism IIRC that tend to hold onto stuff. And of course, if you have some debugger hanging around... :). Or sloppy class variables etc.

regards, Göran

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