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Re: weird segfault crash


From: Eli Zaretskii
Subject: Re: weird segfault crash
Date: Wed, 01 Sep 2021 19:30:59 +0300

> Date: Wed, 1 Sep 2021 10:07:58 -0400
> From: "Perry E. Metzger" <perry@piermont.com>
> 
> Enter this into *scratch* and eval it, then hit F19. At least on master 
> under MacOS, emacs will crash with a segmentation fault.
> 
> (setq foo '(hi))
> 
> (define-key key-translation-map (kbd "<f19>")
>    (lambda (n)
>      (interactive "p")
>      (setq foo (append foo '(there)))))
> 
> Note that if you replace the last form with (setq foo nil), the crash 
> does not happen.
> 
> I'm kind of mystified by this, and not sure how to debug it.

We were trying to print a cons cell as if it were a symbol.

Should be fixed now.



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