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Date:	Thu, 27 Feb 2014 15:16:15 -0500
From:	Ken Brown <kbrown AT cornell DOT edu>
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To:	cygwin AT cygwin DOT com
Subject:	Re: Core dump in emacs 24.3 on CYGWIN
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On 2/27/2014 10:34 AM, Doug Lewan wrote:
> All, for several months I've been getting core dumps from emacs 24.3 running under CYGWIN. I try to update CYGWIN every week, but occasionally a week must be skipped.
>
> Today is the first day I've gotten any specific information about any of these core dumps. (Usually it's just "Aborted (core dumped) emacs"). Today I got the following, more informative error. Still, it doesn't help me much in fixing the problem. (And it may, of course, just be a consequence of a memory management problem elsewhere.)
>
> [xcb] Extra reply data still left in queue
> [xcb] This is most likely caused by a broken X extension library
> [xcb] Aborting, sorry about that.
> assertion "!xcb_xlib_extra_reply_data_left" failed: file "/usr/src/ports/libX11/libX11-1.6.2-1/src/libX11-1.6.2/src/xcb_io.c", line 576, function: _XReply

I suggest you send this to the cygwin-xfree list.  You'll be more likely 
to find people there who can help you.  When you follow up, please 
attach cygcheck output as requested here:

   http://cygwin.com/problems.html

And please give a recipe for triggering the abort, if possible; or do 
the aborts seem to happen at random?  And can you reproduce the problem 
starting with emacs -Q?

Ken


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