[squeak-dev] [ANN] Guardians

Stéphane Rollandin lecteur at zogotounga.net
Thu Nov 8 14:14:40 UTC 2018


> I thought I'd give it a try.  I downloaded guardians.0.82.zip and
> unzipped it to C:\Apps\Guardians.
> Double-clicking on Squeak.exe gave me a message
> and upon opening says "WARNING: This Squeak does not have real 3D support"
> and "LoadLibrary(C:\Apps\guardians\Squeak3D.dll) (998: Invalid access
> to memory locations).
> There are no log files.
> 
> Platform...
> C:> ver
> Microsoft Windows [Version 10.0.17134.345]
> 
> I had an intuition to experiment with a few security settings but
> didn't really expect a change and didn't pre-record existing settings,
> but as best I remember from review the final state...
> Windows Defender Settings > App & browser control
>    Check apps and files - changed from WARN ==> OFF
>    Exploit protection settings >
>       Control flow guard (CFG) - changed ON by default ==> OFF by default
>       Data Execution Prevention (DEP) - remained Use default (ON)
>       Force randomisation for images (Mandatory ASLR) - remained OFF by default
>       Randomise memory allocation (Bottom-up ASLR) - changed from Use
> default (ON) ==> OFF by default
>       High-entropy ASLR - now disabled "requires Randomise memory allocations"
>       Validate exception chains (SEHOP) - change Use default (ON) ==>
> OFF by default
>       Validate heap integrity - remained Use default (ON)
> 
> Those changes required a reboot, so I did that and when I re-ran
> Guardian's Squeak.exe
> a rotating landscape appeared. So probably fixed one of those changes,
> if not the reboot itself.
> 
> cheers -ben

Wow. Thanks for the feedback. It's hard to make sense of, though. I am 
also using Windows Defender (on win 8.1) and has no similar issue. I'll 
try on other computers/systems...

Best,

Stef



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