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Re: 64-bit emacs crashes a lot

From: Ryan Johnson
Subject: Re: 64-bit emacs crashes a lot
Date: Fri, 16 Aug 2013 07:41:44 -0400
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130801 Thunderbird/17.0.8

On 16/08/2013 4:58 AM, Eli Zaretskii wrote:
Again, please move this discussion to emacs-devel.
Back pointer: http://cygwin.com/ml/cygwin/2013-08/msg00273.html

Date: Thu, 15 Aug 2013 22:35:54 -0400
From: Ken Brown <address@hidden>

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
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
I'll try to get one. Meanwhile, is there a quick way to disable buffer relocation as a sanity test? Some configure option, perhaps? If the optimized build still crashes reliably without it, the real problem is probably something else.


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