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

[Eli Zaretskii]

> From: phillip.lord@newcastle.ac.uk (Phillip Lord)
> Cc: <monnier@iro.umontreal.ca>,  <20134@debbugs.gnu.org>
> Date: Wed, 08 Apr 2015 18:08:28 +0100
> 
> 
> Here is another backtrace.

There's that xic_set_preeditarea and xcb_wait_for_event again, called
as part of Emacs redisplaying and setting the cursor.  I don't
understand why this would become progressively slower and slower
during a session, but then I know nothing about XIC.

What happens if, starting with this backtrace, you type "finish" until
it stops showing the next frame up the call-stack -- which frame does
it fail to leave from?