bug#22272: 24.5; nonfunctional Emacs with a bad global mode (post-command-hook).

[Michael Heerdegen]

Bruno BARBIER <brubar.cs@gmail.com> writes:

>    1. the error is not silenced,
>
>    2. and the function is not removed.
>
> Thus, the error is constantly raised rendering Emacs
> nonfunctional. That's why I had to ask the OS to kill my Emacs.  
>
> So, I'm saying Emacs could be slightly improved by following what the
> documentation says. 
>
> Am I wrong ? 

Emacs behaves as documented, but the situation is more complicated as
you expect - See the code `define-globalized-minor-mode':

Turning on a globalized minor mode pushes a function to
change-major-mode-hook that adds a function to post-command-hook - and
that's the one that fails.  So the cited behavior of Emacs removing the
erroneous function from post-command-hook doesn't solve the problem
permanently.


Michael.