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From: Eric Abrahamsen <eric@ericabrahamsen.net>
Subject: Re: Emacs hangs sometimes for no reason
Date: Mon, 16 Jan 2017 08:32:55 -0800
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Michael Welle <mwe012008@gmx.net> writes:

> Hello,
>
> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
> [...]
>> I used to get this a lot, and always due to some interaction between the
>> cache and flyspell. It hasn't happened to me for several months, though
>> (Emacs from git, org-plus-contrib from the package manager). Who knows
>> why...
> I have no problem (in this department ;)) with Org (Org and Emacs 25,
> both, are from git), but sometimes Emacs hangs when I write an email
> with wanderlust. It seems to hang for a minute or maybe longer, most
> times I key in a couple of C-g and then go on. I got triggered by
> flyspell, that is active in wl as well. Hmm. 

Flyspell apparently has a few mechanisms for avoiding this sort of
thing, see the option flyspell-delayed-commands and flyspell-delay. Org
already does some manipulation of delayed commands (maybe that's why I
don't see these hangs anymore...?), perhaps you could try that in wl as
well.

Eric