GNU bug report logs - #2109
menu-bar-update-hook functions are unquittable

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Package: emacs;

Reported by: Glenn Morris <rgm <at> gnu.org>

Date: Fri, 30 Jan 2009 03:30:02 UTC

Severity: normal

Tags: wontfix

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

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Report forwarded to bug-submit-list <at> lists.donarmstrong.com, Emacs Bugs <bug-gnu-emacs <at> gnu.org>:
bug#2109; Package emacs. (Fri, 30 Jan 2009 03:30:03 GMT) Full text and rfc822 format available.

Message #3 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: bug-gnu-emacs <at> gnu.org
Subject: menu-bar-update-hook functions are unquittable
Date: Thu, 29 Jan 2009 22:18:58 -0500

emacs -Q
(defun foo ()
  (while t))
(add-hook 'menu-bar-update-hook 'foo)

-> Emacs uses 100% CPU. C-g does not work and Emacs must be killed.


This is a problem if you have an imenu index function that misbehaves.
(For example, this is why bug#2106 is unquittable.)
Information forwarded to bug-submit-list <at> lists.donarmstrong.com, Emacs Bugs <bug-gnu-emacs <at> gnu.org>:
bug#2109; Package emacs. (Sat, 31 Jan 2009 02:05:05 GMT) Full text and rfc822 format available.
Acknowledgement sent to Stefan Monnier <monnier <at> iro.umontreal.ca>:
Extra info received and forwarded to list. Copy sent to Emacs Bugs <bug-gnu-emacs <at> gnu.org>. (Sat, 31 Jan 2009 02:05:05 GMT) Full text and rfc822 format available.

Message #8 received at 2109 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 2109 <at> debbugs.gnu.org
Subject: Re: bug#2109: menu-bar-update-hook functions are unquittable
Date: Fri, 30 Jan 2009 20:59:12 -0500

tag 2109 +wontfix
thanks

> emacs -Q
> (defun foo ()
>   (while t))
> (add-hook 'menu-bar-update-hook 'foo)

> -> Emacs uses 100% CPU. C-g does not work and Emacs must be killed.

Same thing happens with any inf-loop in a process filter, or in
a post-command-hook, or in a timer, or in a ...


        Stefan
Tags added: wontfix Request was from Stefan Monnier <monnier <at> iro.umontreal.ca> to control <at> emacsbugs.donarmstrong.com. (Sat, 31 Jan 2009 02:05:06 GMT) Full text and rfc822 format available.
bug closed, send any further explanations to Glenn Morris <rgm <at> gnu.org> Request was from Glenn Morris <rgm <at> gnu.org> to control <at> emacsbugs.donarmstrong.com. (Mon, 02 Feb 2009 23:45:03 GMT) Full text and rfc822 format available.
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> emacsbugs.donarmstrong.com. (Tue, 03 Mar 2009 15:24:05 GMT) Full text and rfc822 format available.
This bug report was last modified 16 years and 175 days ago.

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