On Jun 12, 2009, at 8:15 AM, Adrian Robert wrote:
> I saw this at one point while I was working on the updated font  
> driver but it went away once I fixed a couple of other problems.  If  
> it persists for OP after running "make recompile" in lisp and a  
> "make install" from the top level emacs directory,

No change.  I even tried a bootstrapped build.

> could he/she try changing the line near the top of nsfont.m to:
>
> #define NSFONT_TRACE 1
>
> and send the output when running Emacs -Q and then immediately doing  
> the replication steps outlined above?


This is -Q, then M-x customize-face RET italic RET:

~/em23$ nextstep/Emacs.app/Contents/MacOS/Emacs -Q
nsfont: list for fontspec:
     #<font-spec ns nil Monaco nil iso10646-1 nil nil nil nil nil nil  
nil ((:name . "Monaco"))>
2009-06-12 08:43:22.617 Emacs[2654:10b] Request covering families for  
script: ''
2009-06-12 08:43:22.676 Emacs[2654:10b]     returning 287 families
2009-06-12 08:43:22.677 Emacs[2654:10b] Got desc NSCTFontDescriptor  
<0x16446a0> = {
     NSFontFamilyAttribute = Monaco;
} and found 1 matching fonts from it:
created font_entity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name . "Monaco"))>
     Returning 1 entities.
nsfont: open size 0 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name . "Monaco"))>
2009-06-12 08:43:22.680 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
nsfont: list for fontspec:
     #<font-spec ns apple Monaco nil iso10646-1 nil nil nil nil nil  
nil nil ((:name))>
2009-06-12 08:43:22.716 Emacs[2654:10b] Request covering families for  
script: ''
2009-06-12 08:43:22.717 Emacs[2654:10b]     returning 287 families
2009-06-12 08:43:22.718 Emacs[2654:10b] Got desc NSCTFontDescriptor  
<0x166a2e0> = {
     NSFontFamilyAttribute = Monaco;
} and found 1 matching fonts from it:
created font_entity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
     Returning 1 entities.
nsfont: open size 12 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
2009-06-12 08:43:22.720 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
*** nsfont_open CACHE HIT!
nsfont: open size 12 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
2009-06-12 08:43:22.721 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
*** nsfont_open CACHE HIT!
nsfont: list for fontspec:
     #<font-spec ns apple Monaco nil iso10646-1 nil nil nil nil nil  
100 nil ((:name))>
2009-06-12 08:43:22.743 Emacs[2654:10b] Request covering families for  
script: ''
2009-06-12 08:43:22.744 Emacs[2654:10b]     returning 287 families
2009-06-12 08:43:22.745 Emacs[2654:10b] Got desc NSCTFontDescriptor  
<0x166de50> = {
     NSFontFamilyAttribute = Monaco;
} and found 1 matching fonts from it:
created font_entity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
     Returning 1 entities.
nsfont: open size 12 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
2009-06-12 08:43:22.746 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
*** nsfont_open CACHE HIT!
nsfont: open size 12 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
2009-06-12 08:43:22.768 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
*** nsfont_open CACHE HIT!
0x16457d0       Finding glyphs for glyphs in block 0
0x16457d0       Computing metrics for glyphs in block 0
nsfont: open size 12 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
2009-06-12 08:43:22.825 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
*** nsfont_open CACHE HIT!
nsfont: open size 12 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
2009-06-12 08:43:30.544 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
*** nsfont_open CACHE HIT!
nsfont: open size 12 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
2009-06-12 08:43:30.547 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
*** nsfont_open CACHE HIT!
nsfont: open size 12 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
2009-06-12 08:43:31.931 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
*** nsfont_open CACHE HIT!
nsfont: open size 12 of fontentity:
     #<font-entity ns apple Monaco nil iso10646-1 medium normal normal  
0 nil 100 0 ((:name))>
2009-06-12 08:43:32.028 Emacs[2654:10b] "Monaco 12.00 pt. P []  
(0x01645690) fobj=0x01644f80, spc=7.20"
*** nsfont_open CACHE HIT!