bug#20134: Acknowledgement (24.4.90; Emacs slowdown to eventual hang)

[Eli Zaretskii]

> From: phillip.lord@newcastle.ac.uk (Phillip Lord)
> Cc: <20134@debbugs.gnu.org>
> Date: Tue, 07 Apr 2015 17:16:41 +0100
> 
> > What about the pre/post-command hooks?
> 
> pre-command-hook is a variable defined in `C source code'.
> Its value is shown below.
> 
> Value: (pabbrev-pre-command-hook preview-mark-point t)
> 
> 
> post-command-hook is a variable defined in `C source code'.
> Its value is
> (yas--post-command-handler pabbrev-post-command-hook preview-move-point t)

I know nothing about these.  Perhaps try disabling one at a time, and
see if the problem goes away.