Re: 23.0.60; Crash in face_at_buffer_position

[Lennart Borgman (gmail)]

Stefan Monnier wrote:
> > I am not sure if this bug report is of any value. I believe it might have
> > something to do with that I have made some bad changes to
> > syntax-ppss.  Anyway, I did not expect Emacs to crash. Here is what I get
> > from the debugger:
>
> You mean you've made some changes to syntax-ppss but no changes to the
> C code?  Then it indeed shouldn't be the cause of the bug (tho it might
> have triggered it, of course).

Yes.

> > The backtrace seems to be very, very long.
>
> Most likely the SIGSEGV is nothing more than stack-overflow because of
> "infinite" recursion and the bug is probably not in
> face_at_buffer_position.

But how can I see where it is? The parameters to face_at_buffer_position 
looks strange. Maybe that is something useful?