--- Begin Message ---
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Subject: |
23.0.60; custom-set-faces causes "New Frame" to fail (max-specpdl-size) |
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Date: |
Sun, 7 Sep 2008 12:36:42 +0100 |
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User-agent: |
Mutt/1.5.18 (2008-05-17) |
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:
Whenever I select "File->New Frame" (C-x 5 2) a new frame does not
appear and I receive the message "Variable binding depth exceeds
max-specpdl-size".
This seems to be caused by any use of custom-set-faces in the
.emacs file. When I remove the custom-set-faces code from .emacs, the
bug does not occur.
Example custom-set-faces in .emacs that causes the bug:
(custom-set-faces
;; custom-set-faces was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won't work right.
'(default ((t (:stipple nil :background "DarkSlateGray"
:foreground "wheat" :inverse-video nil :box nil :strike-through
nil :overline nil :underline nil :slant normal :weight normal
:height 121 :width normal :foundry "unknown" :family "DejaVu Sans
Mono")))))
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
/usr/share/emacs/23.0.60/etc/DEBUG for instructions.
In GNU Emacs 23.0.60.1 (x86_64-redhat-linux-gnu, GTK+ Version 2.12.11)
of 2008-08-01 on x86-1
Windowing system distributor `The X.Org Foundation', version
11.0.10499905
configured using `configure '--build=x86_64-redhat-linux-gnu'
'--host=x86_64-redhat-linux-gnu' '--target=x86_64-redhat-linux-gnu'
'--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr'
'--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc'
'--datadir=/usr/share' '--includedir=/usr/include'
'--libdir=/usr/lib64' '--libexecdir=/usr/libexec'
'--localstatedir=/var' '--sharedstatedir=/usr/com'
'--mandir=/usr/share/man' '--infodir=/usr/share/info'
'build_alias=x86_64-redhat-linux-gnu'
'host_alias=x86_64-redhat-linux-gnu'
'target_alias=x86_64-redhat-linux-gnu' 'CFLAGS=-DMAIL_USE_LOCKF -O2
-g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic''
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.utf8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default-enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
show-paren-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
Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <menu-bar> <file>
<make-frame> M-x r e p o <tab> r <tab> <return>
Recent messages:
Loading /usr/share/emacs/site-lisp/site-start.d/igrep-init.el
(source)...done
Loading /usr/share/emacs/site-lisp/site-start.d/muse-init.el
(source)...done
Loading /usr/share/emacs/site-lisp/site-start.d/php-mode-init.el
(source)...done
Loading /usr/share/emacs/site-lisp/site-start.d/po-mode-init.el
(source)...done
Loading /usr/share/emacs/site-lisp/site-start.d/rpm-spec-mode-init.el
(source)...done
Loading gnus...done
Loading paren...done
For information about GNU Emacs and the GNU system, type C-h C-a.
display-color-cells: Variable binding depth exceeds max-specpdl-size
Making completion list...
--- End Message ---
--- Begin Message ---
|
Subject: |
Re: bug#911: 23.0.60; custom-set-faces causes "New Frame" to fail |
|
Date: |
Wed, 24 Sep 2008 16:25:39 -0400 |
> When creating a new frame `frame-set-background-mode' gets called
> which eventually calls `face-spec-recalc'... which calls
> `face-spec-set-2' two times for the default face background, one time
> for #ffffff and one time for DarkSlateGray. `face-spec-set-2' calls
> `set-face-attribute', which calls `internal-set-lisp-face-attribute'
> which calls Fmodify_frame_parameters which calls
> `frame-set-background-mode' again.
The Emacs face code strikes again, huh.
> (>= (apply '+ (color-values "DarkSlateGrey"))
> (* (apply '+ (color-values "white")) .6))
>
> evaluates to nil while
>
> (>= (apply '+ (color-values "#ffffff"))
> (* (apply '+ (color-values "white")) .6))
>
> evaluates to t. This means that `bg-mode' never equals `old-bg-mode'
> but continuously alternates between 'light and 'dark, so
> `frame-set-background-mode' will call `face-spec-recalc' thus sending
> Emacs into a nasty loop.
>
> Note that the looping behavior is due to the second call in the dolist
> (that for DarkSlateGrey). The first call (for #ffffff) terminates.
>
> I'm not sure how to fix this because that looping has no specific entry
> point.
How about defining a variable `frame-set-background-mode-bg-mode'? If
it's nil, frame-set-background-mode uses the existing calculation to
determine whether it's light or dark; if it's non-nil, it uses that
existing value. This should prevent the oscillation.
--- End Message ---