Nix/doc/manual/rl-next/stack-overflow-segfaults.md

synopsis	issues	prs
Some stack overflow segfaults are fixed	9616	9617

The number of nested function calls has been restricted, to detect and report infinite function call recursions. The default maximum call depth is 10,000 and can be set with the max-call-depth option.

This fixes segfaults or the following unhelpful error message in many cases:

error: stack overflow (possible infinite recursion)

Before:

$ nix-instantiate --eval --expr '(x: x x) (x: x x)'
Segmentation fault: 11

After:

$ nix-instantiate --eval --expr '(x: x x) (x: x x)'
error: stack overflow

       at «string»:1:14:
            1| (x: x x) (x: x x)
             |              ^