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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel,gmane.emacs.bugs
Subject: Re: mark_object crash in 22.1 and latest CVS (as of tonight)
Date: Tue, 13 Nov 2007 15:03:14 -0500
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To: Stefan Monnier <monnier@iro.umontreal.ca>
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In-reply-to: <jwvbq9zm8gg.fsf-monnier+emacs@gnu.org> (message from Stefan
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Xref: news.gmane.org gmane.emacs.devel:83140 gmane.emacs.bugs:16968
Archived-At: <http://permalink.gmane.org/gmane.emacs.bugs/16968>

    > I'll have to wait till I'm next at work to find out exactly which slot
    > in the buffer
    > this list comes from using gdb.

    Sounds like the contents of the buffer-undo-list.  Especially since this
    variable is GC'd specially and getting it right is tricky.

It should be easy to verify that guess by examining the undo list slot
in the buffer object.