bug#51577: 27.2; Regression: reproducible hang with face functions

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> And how does your code differ from this:
>
>   (while t nil)
>
> Or would you consider it a bug that Emacs doesn't detect the infinite
> while-loop, either?

We do try to detect loops in other situations (to avoid hangs).  This is
in redisplay code, though (I think?), so perhaps it would be
prohibitively expensive to try to detect loops here?

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