Subject: bug#18161: 24.3.92; Crash in do_switch_frame

From: Eli Zaretskii <[email-masked]>
Date: Sat, 02 Aug 2014 22:08:51 +0300

> Date: Sat, 02 Aug 2014 20:00:16 +0100
> From: Mat Smiglarski <[email-masked]>
> Cc: Dmitry Antipov <[email-masked]>, [email-masked]
> 
> $ emacs -Q
> 
> 2. Type the following into the scratch buffer:
> 
> (defvar crash-frame-list nil)
> 
> (defun debug-hook-post-command ()
>    (dolist (frame crash-frame-list)
>      (print (frame-parameters frame) #'external-debugging-output)))
> 
> (defun debug-hook-window-configuration-change ()
>    (push (selected-frame) crash-frame-list))
> 
> (add-hook 'post-command-hook 'debug-hook-post-command)
> (add-hook 'window-configuration-change-hook 
> 'debug-hook-window-configuration-change)
> 
> (make-frame '((left . unbound-symbol)))
> 
> 3. M-x eval-buffer
> 
> A segfault now occurs with the following trace

I still see no crash, only an error message about wrong-type-argument.