Re: "Text is read-only" infinite loop (Carbon)

[Richard Stallman]

M-DEL normally runs the command backward-kill-word.

    In the message buffer I get: "x-create-frame-with-faces:
    Text is read-only" but Emacs doesn't hang.

That is really strange, since x-create-frame-with-faces shouldn't
be associated with modifying a buffer.  Can you debug the details
of how that error occurs?  For instance, what buffer is it trying
to modify, and why?