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lix/doc/manual/rl-next/stack-overflow-segfaults.md
eldritch horrors 96f1a404d0 Merge pull request #9617 from 9999years/stack-overflow-segfault 
Fix segfault on infinite recursion in some cases

(cherry picked from commit bf1b294bd8)
Change-Id: Id137541426ec8536567835953fccf986a3aebf16
2024-03-04 07:35:20 +01:00

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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)
             |              ^