bug#3082: Crash in ns_draw_glyph_string

[Adrian Robert]

On Apr 23, 2009, at 7:25 AM, Chong Yidong wrote:

> Hi Adrian,
>
> Could you take a look at bug#3082?  Thanks.
>
> http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=3082
>
>
> David Reitter <david.reitter@gmail.com> wrote:
>
> > Emacs -Q
> > M-x list-faces-display
> > C-x o
> > C-x 1
> > M-: (setq scroll-step 1 scroll-conservatively 1)
> > (enlarge frame a bit)
> >
> > Now scroll down (with Down/Home) repeatedly.  In two out of three
> > trials this produced the crash below for me.


I can't get this to reproduce when -O2 not given, but the stack trace  
is incomplete when it is.  David, is this crash frequently occurring  
in other contexts, or only through the specific recipe you give?