[Vm-dev] Windows VM broken for ioShowDisplay

Nicolas Cellier nicolas.cellier.aka.nice at gmail.com
Mon Nov 14 11:10:21 UTC 2022


I confirm that it is a GDI LEAK.
If I display the number of GDI objects in the task manager, I see that the
number grows up to 10,000 at which time the image hangs...

Le lun. 14 nov. 2022 à 11:24, Nicolas Cellier <
nicolas.cellier.aka.nice at gmail.com> a écrit :

> Sorry, for shorten message, continued below...
>
> Le lun. 14 nov. 2022 à 11:18, Nicolas Cellier <
> nicolas.cellier.aka.nice at gmail.com> a écrit :
>
>> Hi all,
>> as Eliot already reported in October, after a few minutes, the 64bits
>> image locks up on windows.
>> The console reports an error from within ioShowDisplay
>>
>>     SetDIBitsToDevice failed (0)
>>     width=1364,height=757,bits=7FF7471D68E8,dc=FFFFFFFF9D010B72
>>
>> then several other gdi calls start to fail, like
>>
>>     CreateCursor failed (0)
>>
>> a bit further, SetDIBitsToDevice failed (8), the error message concerns
>>
>>  The error message a bit further is about insufficient memory resources
> to perform the SetDIBitsToDevice
>
> If I open an image, leave it alone, and observe the Squeak.exe process in
> TaskManager, I clearly see a memory leak.
> The error happens after about 15 or 16Mbytes increase.
> So we should track the origin of un-released resources, and the problem
> will then probably vanish.
>
> For now, it's a show-stopper for me.
>
> Nicolas
>
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