From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eli Zaretskii <eliz@gnu.org>
Subject: bug#17055: 24.3.50; Emacs hangs in Org mode file
Date: Fri, 21 Mar 2014 18:02:03 +0200
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To: Sebastien Vauban <sva-news@mygooglest.com>
Cc: 17055@debbugs.gnu.org

> From: Sebastien Vauban <sva-news@mygooglest.com>
> Date: Fri, 21 Mar 2014 14:58:19 +0100
> 
> Sebastien Vauban wrote:
> > Today, 2 to 3 new infloops when editing in Org (but that's one of the
> > two things I do: either be in Gnus, or in Org).
> >
> >   Org-mode version 8.2.5h (release_8.2.5h-818-g0de200)
> >
> > I did not have time to look at the first ones; I do for this one.
> >
> > $ gdb -p 9696
> > ...
> > [Thread 9696.0x1710 exited with code 0]
> > [Thread 9696.0x23c4 exited with code 0]
> > [Thread 9696.0x1e08 exited with code 0]
> >
> > The weird thing, here, is that my Bash terminal is stuck: I did not see
> > more than 2 threads, and I don't have any GDB prompt yet. RET'ing does
> > not change anything...
> >
> > Session still open (but no GDB prompt!).
> 
> Still no prompt but Emacs survived this infloop (not an infloop, then)
> after I don't know how much time (but more than a couple of minutes).
> 
> BTW, it outputted the message "Emergency (alloc): Warning: past 95% of
> memory limit".

I think this is a duplicate of 16832.  The same function,
org-mode-flyspell-verify, causes this, and the effect is the same: it
takes Emacs a lot of time to get out of that processing, whatever it
is.

I hope Org maintainers could take a good look on this.