marcus I read your fix and I do not understand why the previous way was a 
problem.
What was your hypothesis?

Stef

> On 11 Nov 2019, at 14:46, Marcus Denker <[email protected]> wrote:
> 
> 
>>>> 
>>>> Hi,
>>>> 
>>>> During our work we encountered two issues we think should be considered 
>>>> critical.
>>>> 
>>>> The first is that the garbage collector is unreliable on larger images:
>>>> https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/391 
>>>> <https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/391>
>>>> We stumble on this when we manipulate larger pieces of data quite 
>>>> consistently in plain Pharo (7 or 8). We lack the knowledge of how to 
>>>> approach it, but we would happily pair and try to reproduce it with 
>>>> someone.
>>>> 
>>>> The second one is that the sources contain wrong pointers, and this makes 
>>>> it hard to work with TFFI:
>>>> https://github.com/pharo-project/pharo/issues/4967
>>>> This is already marked as important. We spent quite some time 
>>>> investigating this, especially in the context of TFFI, and we would be 
>>>> happy to pair to work through it.
>>>> 
> 
> I think my PR fixes it… the PR is green and the downloaded artefact seems to 
> not show any problematic methods anymore:
> 
>       https://github.com/pharo-project/pharo/pull/5120 
> <https://github.com/pharo-project/pharo/pull/5120>
> 
> 
> 
>       Marcus

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