2015-03-27 10:52 GMT+01:00 Eli Zaretskii <eliz@gnu.org>:

> > From: Fabrice Popineau <fabrice.popineau@gmail.com>
> > Date: Wed, 25 Mar 2015 23:16:45 +0100
> >
> > 2015-03-25 21:38 GMT+01:00 Eli Zaretskii <eliz@gnu.org>:
> >
> >     Try the patch below. It solves the crash with the file you sent, but
> >     the question is: does it also solve your real-life use case?
> >
> >
> > Great! If you have an explanation about what is happening there, it
> would be
> > great too.
> > About my real life case : that was the actual file preventing emacs to
> run
> > because of the crash.
> > In all the undo-tree history files, only this one had a dumped syntax
> table.
> > I have no idea why undo-tree wants to do that.
> > But in any case, emacs shouldn't crash when reading data that it has
> printed
> > itself.
>
> Did you try the patch?  Can I commit it?
>


Yes. You should commit it in my opinion. I don't know if something else
needs to be patched, but reviving the same
state that was crashing, emacs could start and I was able to undo stuff
from the undo-tree-history.

Thanks a lot for the patch.

Fabrice