At least on x86-64, Rust inserts stack probes to ensure that it can't skip over the guard pages at the end of the stack. Last I saw, it was waiting on LLVM supp

At least on x86-64, Rust inserts stack probes to ensure that it can't skip over the guard pages at the end of the stack. Last I saw, it was waiting on LLVM support to add this for some other platforms, though.