Stack frames larger than 4K should be rejected, but what if I want more

[Dennis]

On Sunday, 27 June 2021 at 19:41:40 UTC, Ola Fosheim Grøstad 
wrote:
> It makes no sense and would kill a system level language.

While it's not specified in "The compiler should reject any stack 
frame that's larger than 4K", I think it's only meant to apply to 
@safe functions, not @system or @trusted ones.

Also, instead of straight up rejecting large stack frames in 
@safe code, the compiler could also start such a function with 
probing the guard page by making writes at intervals of 4K.