Help to find crash in simple stack type?

[Rainer Schuetze via Digitalmars-d-learn]

On 12.07.2014 16:24, anonymous wrote:
> No explanation or solution, but a reduction:
>
> import core.memory;
> void main()
> {
>       alias T = ubyte;
>
>       enum size1 = 2_049; /* > 2_048 = 2^^11 */
>       enum size2 = 1_048_577; /* > 1_048_576 = 2^^20 */
>
>       T* _data;
>       _data = cast(T*)GC.calloc(size1, GC.BlkAttr.NO_MOVE);
>       _data = cast(T*)GC.realloc(_data, size2, GC.BlkAttr.NO_MOVE);
>
>       T* _pointer = _data;
>       foreach(i; 0 .. size2)
>       {
>           *_pointer = 0; /* segfault at i = 1_048_576 */
>           _pointer++;
>       }
> }

Thanks for the reduction. GC.realloc seems broken for reallocations to 
sizes larger than the current GC pool.

Please file a bug report.