Re: Possible bug: Emacs hangs on (require 'org)

[Eric Abrahamsen <eric@ericabrahamsen.net>]

Luke <mideniko1234-org@yahoo.co.uk> writes:

> I have a strange situation on my laptop.
>
> I'm running Ubuntu 16.04, with Emacs 24.5.1. I'm also using the latest
> development branch from the org-mode git repository (latest changes
> pulled today).
>
> Recently, for some unknown reason, emacs suddenly started to hang on
> startup. Placing some output messages in my .emacs file I was able to
> narrow it down to this line:
>
>     (require 'org)
>
> Loading org-mode hangs Emacs for some reason. If I remove the above
> line from .emacs then Emacs will start as normal (although without
> org-mode, obviously).
>
> I tried creating a minimal-org.el file with the following contents:
>
>     ;; activate debugging
>     (setq debug-on-error t
>           debug-on-signal nil
>           debug-on-quit nil)
>
>     ;; add latest org-mode to load path
>     (add-to-list 'load-path (expand-file-name "~/elisp/org-mode/lisp"))
>     (add-to-list 'load-path (expand-file-name
> "~/elisp/org-mode/contrib/lisp" t))
>
> And then running:
>
>     $ emacs -Q -l minimal-org.el
>
> ...but I still get the same result (Emacs hangs when I run `M-x
> (require 'org)`).
>
> Can anyone help tell me what's wrong, or suggest how I try and track
> down the problem?

You're setting debug-on-quit to nil, but it's likely that setting it to
t is exactly what you need. Toggle it to t, eval (require 'org), then
while it's hung hit C-g. You should get a backtrace showing you what
Emacs was actually doing when you quit.

Eric