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Re: Emacs 21.2 core dump in find_first_unchanged_at_end_row

From: Gerd Moellmann
Subject: Re: Emacs 21.2 core dump in find_first_unchanged_at_end_row
Date: 29 Mar 2002 11:20:40 +0100
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2.50

Paul Eggert <address@hidden> writes:

> > Date: Thu, 28 Mar 2002 10:34:47 +0200
> > From: "Eli Zaretskii" <address@hidden>
> > 
> > "xbacktrace" should show a Lisp backtrace which will tell what Emacs
> > was doing, and might refresh your memory about your keystrokes at that
> > time.
> Unfortunately "xbacktrace" reports nothing, as backtrace_list is zero.

I think this is normal, given the GDB backtrace you sent.

> I do remember one other thing.  Right after I saved the file, I must
> have accidentally typed one more "a" character into the buffer at a
> relatively random location in the file.  This caused emacs to create a
> "#" file with the extra "a" in it, which I found after the core dump.
> I think this must have happened just before Emacs dumped core.

IIRC, the last time something like that came up, it was caused by
bogus unchanged information in the buffer
(BEG_UNCHANGED/END_UNCHANGED).  Maybe it's worth looking at that,
although it might be hard to reconstruct what happened.

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