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Date:	Wed, 10 Aug 2005 20:56:02 +0300
Message-Id:	<ull39oevh.fsf@gnu.org>
From:	Eli Zaretskii <eliz AT gnu DOT org>
To:	jbuehler AT spirentcom DOT com
CC:	emacs_user AT hotmail DOT com, cygwin AT cygwin DOT com, emacs-devel AT gnu DOT org
In-reply-to:	<42F9E707.1030302@spirentcom.com> (message from Joe Buehler on Wed, 10 Aug 2005 07:37:43 -0400)
Subject:	Re: is there a cygwin maintainer for gnu emacs?
Reply-to:	Eli Zaretskii <eliz AT gnu DOT org>
References:	<BAY107-F29E79AE5E6EDDEC1D619EBF8BA0 AT phx DOT gbl> <42F9E707 DOT 1030302 AT spirentcom DOT com>

> Date: Wed, 10 Aug 2005 07:37:43 -0400
> From: Joe Buehler <jbuehler AT spirentcom DOT com>
> Cc: ehud AT unix DOT mvs DOT co DOT il, cygwin AT cygwin DOT com, emacs-devel AT gnu DOT org
> 
> I would think that emacs would say why it is aborting.

When GC encounters a fatal inconsistency in the Emacs data structures,
it is generally unsafe to say anything, since that could easily cause
a nested fatal signal.

> Is there an expert on the emacs internals that would care to comment
> on what this abort might mean?

I'm not sure I'm such an expert on this, but the file etc/DEBUG has a
special section on debugging crashes inside GC.  I don't think there's
a general recipe, one just needs to follow the advice in etc/DEBUG and
find out the corrupted data structure.  Once the bad data structure is
found, the next step is to trace its life cycle and find what piece of
code corrupted it.

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