[Cuis-dev] ffi crash in 7.8

Csurke Tamas csurketamas at gmail.com
Sun Aug 23 05:05:40 PDT 2026


Hi,

I tried out the Cuis 7.8 and I'm experiencing a crash of the vm when I call
an FFI function which returns nil (NULL). I the previous versions (at least
I used Cuis 7.2) it worked and Smalltalk returned with nil.

You can reproduce it even by using the Tests-FFI, for example:

| t |

t := FFITestLibrary new ffiPrintString: nil.

In version 7.2: t is nil.
In version 7.8: vm crashes: terminated by signal SIGABRT (Abort)

Br,
Tamas
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