bug#1990: marked as done (23.0.60; Emacs trying too hard to find fonts that don't exist)

[Emacs bug Tracking System]

Your message dated Sat, 24 Jan 2009 17:44:13 -0500
with message-id <874ozowchu.fsf@cyd.mit.edu>
and subject line Re: bug#1990: 23.0.60; Emacs trying too hard to find fonts 
that don't  exist
has caused the Emacs bug report #1990,
regarding 23.0.60; Emacs trying too hard to find fonts that don't exist
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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-- 
1990: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=1990
Emacs Bug Tracking System
Contact owner@emacsbugs.donarmstrong.com with problems
> --- Begin Message ---
>
>
>
> Subject: 
>
> 23.0.60; Emacs trying too hard to find fonts that don't exist
>
>
>
>
> Date: 
>
> Thu, 22 Jan 2009 21:22:32 +0800
>
>
>
>
> User-agent: 
>
> Thunderbird 2.0.0.19 (Windows/20081209)
>
>
>
>
> Please write in English if possible, because the Emacs maintainers
> usually do not have translators to read other languages for them.
>
> Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing 
> list.
>
> Please describe exactly what actions triggered the bug
> and the precise symptoms of the bug:
>
> If fonts are not installed for some characters, then Emacs keeps trying 
> to find fonts for them every time those characters are redisplayed. The 
> following excerpt from font-log is with the xft font backend on 
> GNU/Linux where the search is quick, thus not noticeable, but on Windows 
> the search for fonts is expensive, so redisplay takes a couple of 
> seconds. I have cut the end off, as the full font-log is long, but you 
> can see from the first two font-for entries that Emacs is trying twice 
> for the same character (and it tries again many times further down the log).
>
> font for: (4121 . mule-unicode-0100-24ff)
> list: -mutt-clearlyu-*-iso10646-1
> list: -gnu-unifont-*-iso10646-1
> list: -bitstream-Bitstream Vera Sans Mono-*-gb18030*-*
> list: -*-Bitstream Vera Sans Mono-*-gb18030*-*
> list: -bitstream-*-gb18030*-*
> list: -*-gb18030*-*
> list: -bitstream-Bitstream Vera Sans Mono-*-ksc5601.1987*-*
> list: -*-Bitstream Vera Sans Mono-*-ksc5601.1987*-*
> list: -bitstream-*-ksc5601.1987*-*
> list: -*-ksc5601.1987*-*
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-1
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-1
> list: -bitstream-*-cns11643.1992-1
> list: -*-cns11643.1992-1
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-4
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-4
> list: -bitstream-*-cns11643.1992-4
> list: -*-cns11643.1992-4
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-5
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-5
> list: -bitstream-*-cns11643.1992-5
> list: -*-cns11643.1992-5
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-6
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-6
> list: -bitstream-*-cns11643.1992-6
> list: -*-cns11643.1992-6
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-7
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-7
> list: -bitstream-*-cns11643.1992-7
> list: -*-cns11643.1992-7
> font for: (4121 . mule-unicode-0100-24ff)
> list: -mutt-clearlyu-*-iso10646-1
> list: -gnu-unifont-*-iso10646-1
> list: -bitstream-Bitstream Vera Sans Mono-*-gb18030*-*
> list: -*-Bitstream Vera Sans Mono-*-gb18030*-*
> list: -bitstream-*-gb18030*-*
> list: -*-gb18030*-*
> list: -bitstream-Bitstream Vera Sans Mono-*-ksc5601.1987*-*
> list: -*-Bitstream Vera Sans Mono-*-ksc5601.1987*-*
> list: -bitstream-*-ksc5601.1987*-*
> list: -*-ksc5601.1987*-*
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-1
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-1
> list: -bitstream-*-cns11643.1992-1
> list: -*-cns11643.1992-1
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-4
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-4
> list: -bitstream-*-cns11643.1992-4
> list: -*-cns11643.1992-4
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-5
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-5
> list: -bitstream-*-cns11643.1992-5
> list: -*-cns11643.1992-5
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-6
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-6
> list: -bitstream-*-cns11643.1992-6
> list: -*-cns11643.1992-6
> list: -bitstream-Bitstream Vera Sans Mono-*-cns11643.1992-7
> list: -*-Bitstream Vera Sans Mono-*-cns11643.1992-7
> list: -bitstream-*-cns11643.1992-7
> list: -*-cns11643.1992-7
>
>
> To reproduce: C-h h
> On my system, there are boxes displayed for Sinhala, Tibetan, Khmer and 
> Burmese.
> Scroll down so that the first set of boxes disappears just off the top 
> of the window.
> M-: (setq font-log nil)
> Scroll back up
> M-x font-show-log
>
> If Emacs crashed, and you have the Emacs process in the gdb debugger,
> please include the output from the following gdb commands:
>    `bt full' and `xbacktrace'.
> If you would like to further debug the crash, please read the file
> /home/jasonr/emacs/etc/DEBUG for instructions.
>
>
> In GNU Emacs 23.0.60.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.12.11)
> of 2008-12-28 on wanchan.jasonrumney.net
> Windowing system distributor `Colin Harrison', version 11.0.60900031
> Important settings:
>  value of $LC_ALL: nil
>  value of $LC_COLLATE: nil
>  value of $LC_CTYPE: nil
>  value of $LC_MESSAGES: nil
>  value of $LC_MONETARY: nil
>  value of $LC_NUMERIC: nil
>  value of $LC_TIME: nil
>  value of $LANG: en_GB.UTF-8
>  value of $XMODIFIERS: nil
>  locale-coding-system: utf-8-unix
>  default-enable-multibyte-characters: t
>
> Major mode: Help
>
> Minor modes in effect:
>  tooltip-mode: t
>  tool-bar-mode: t
>  mouse-wheel-mode: t
>  menu-bar-mode: t
>  file-name-shadow-mode: t
>  global-font-lock-mode: t
>  font-lock-mode: t
>  blink-cursor-mode: t
>  global-auto-composition-mode: t
>  auto-composition-mode: t
>  auto-encryption-mode: t
>  auto-compression-mode: t
>  line-number-mode: t
>  transient-mark-mode: t
>  view-mode: t
>
> Recent input:
> <help-echo> <help-echo> <help-echo> <help-echo> <escape>
> x C-g C-h h <help-echo> <next> <prior> <down> <down>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1>
> <mouse-1> <mouse-1> <mouse-1> <escape> : ( s e t q
> SPC f o n t - l o g SPC n i l ) <return> <prior> <escape>
> x f o n t - s h <tab> <return> <down-mouse-1> <mouse-movement>
> <mouse-movement> <mouse-movement> <mouse-movement>
> <mouse-movement> <drag-mouse-1> <down-mouse-1> <mouse-1>
> <prior> <prior> <up> <up> <up> <up> <up> <up> <up>
> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> C-@
> <down> <down> <down> <down> <down> <down> <down> <down>
> <down> <down> <down> <down> <down> <down> <down> <down>
> <down> <down> <down> <down> <down> <down> <down> <down>
> <down> <down> <down> <down> <down> <down> <down> <down>
> <down> <down> <down> <down> <down> <down> <down> <down>
> <down> <down> <down> <down> <down> <down> <down> <down>
> <down> <down> <down> <down> <down> <down> <down> <down>
> <down> <down> <down> <down> <down> <down> <escape>
> w <help-echo> <help-echo> <help-echo> <help-echo> <escape>
> x r e p o r t - e m a <tab> <return>
>
> Recent messages:
> For information about GNU Emacs and the GNU system, type C-h C-a.
> Quit
> Loading vc-cvs...done
> View mode: type C-h for help, h for commands, q to quit.
> nil
> Mark activated
> Saved text from "font for: (4121 . mule-unicode-0100-24ff"
>
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#1990: 23.0.60; Emacs trying too hard to find fonts that don't  exist
>
>
>
>
> Date: 
>
> Sat, 24 Jan 2009 17:44:13 -0500
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)
>
>
>
>
> Juanma Barranquero <lekktu@gmail.com> writes:
>
> >> That log message is emitted just before calling fontset_font (which is
> >> where we would check whether fonts are known not to exist).
> >
> > OK.
> >
> > Then, please install your change. It's a big improvement.
>
> I have installed a similar patch in CVS.
>
> --- End Message ---