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Date: Fri, 16 Aug 2013 11:58:54 +0300
From: Eli Zaretskii <eliz AT gnu DOT org>
Subject: Re: 64-bit emacs crashes a lot
In-reply-to: <520D900A.8000907@cornell.edu>
To: Ken Brown <kbrown AT cornell DOT edu>
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Reply-to: Eli Zaretskii <eliz AT gnu DOT org>
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Again, please move this discussion to emacs-devel.

> Date: Thu, 15 Aug 2013 22:35:54 -0400
> From: Ken Brown <kbrown AT cornell DOT edu>
> 
> 1. Invoke 'emacs-nox -Q' in mintty.
> 
> 2. M-x compile C-a C-k ls RET
> 
> 3. C-x o
> 
> 4. Hit 'g' repeatedly.
> 
> I got it to abort with Fatal error 6 after slightly over 100 repetitions.
> 
> I then tried the same thing with emacs-X11 (running under X, not in 
> mintty).  I hit 'g' 200 times without a problem.  I repeated this with 
> emacs-w32, again 200 times without a problem.
> 
> So there's a bug somewhere.  But if it's an emacs bug, it's strange that 
> it only occurs with emacs-nox and not with either of the GUI versions of 
> emacs.

I suspect that buffer relocation might be the reason.  Can you show a
backtrace from the fatal error in an unoptimized build, with the above
recipe?

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