Hi,

Since at least yesterday, latest trunk version crashes regularly.

I've grabbed 2 backtraces so far, attached.

I'm sure that the change responsible has been done between the commits:

commit 1e211d886c96420904ad197cfee7fce7ae7b9d83
Author: Stefan Monnier <monnier@iro....>
Date:   Fri Jun 22 09:42:38 2012 -0400

    Provide generalized variables in core Elisp.


commit b17778189e1df0a56e48a5f6f0b52f7bebbdfdd7
Author: Julien Danjou <julien@danj...>
Date:   Thu Jun 28 12:40:24 2012 +0200

    term: rework color cutomizing


I know this because emacs-snapshot for Debian that I package worked
correctly for the 20120622 version, and stopped working with this last
commit. Something in between changed something causing this.

If nobody has an idea, I can try to bisect but that will require
sometimes since the crash is still random to me (not sure how to
reproduce for sure).