Package: emacs;
Reported by: Mat Smiglarski <penthief <at> SDF.ORG>
Date: Mon, 30 Jun 2014 23:27:01 UTC
Severity: normal
Found in version 24.3
Fixed in version 24.4
Done: Glenn Morris <rgm <at> gnu.org>
Bug is archived. No further changes may be made.
Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Mat Smiglarski <penthief <at> SDF.ORG> To: bug-gnu-emacs <at> gnu.org Subject: 24.3; Crash setting the font on a separate frame with no minibuffer Date: Tue, 01 Jul 2014 00:26:23 +0100
Emacs crashes when setting the font on a frame with no minibuffer
after initialising color-mode. This does not occur when running in a
terminal.
The crash only occurs with certain fonts (eg. Monaco, or DejaVu Sans
Mono, but not Courier) and can be reproduced with a small amount of code
from color-mode and no dependent packages, as demonstrated below.
To Reproduce:
1: Create the following 50 line file for initialisation. (This is mostly
from color-mode, and you may like to comment out the last two lines
which are not, in order to avoid the immediate crash.)
(defun color-theme-install-faces (faces)
;; clear all previous faces
;; install new faces
(let ((frame nil))
(dolist (entry faces)
(let ((face (nth 0 entry))
(spec (nth 1 entry)))
(or (facep face)
(make-empty-face face))
;; remove weird properties from the default face only
(if (and (functionp 'face-spec-reset-face)
(equal spec '((t (nil)))))
(face-spec-reset-face face frame)
(condition-case var
(progn
(face-spec-set face spec frame)
(put face 'face-defface-spec spec))
(error (message "Error using spec %S: %S" spec var))))))))
(defun color-theme-canonic (theme)
"Return the canonic form of THEME.
This deals with all the backwards compatibility stuff."
(let (function frame-params variables faces)
(when (functionp (car theme))
(setq function (car theme)
theme (cdr theme)))
(setq frame-params (car theme)
theme (cdr theme))
;; optional variable defintions (for backwards compatibility)
(when (listp (caar theme))
(setq variables (car theme)
theme (cdr theme)))
;; face definitions
(setq faces theme)
(list function frame-params variables faces)))
(defun color-theme-faces (theme)
"Return faces defined by THEME."
(nth 3 theme))
(color-theme-install-faces
(color-theme-faces (color-theme-canonic
'(color-theme-crash-crash-crash
(italic ((t (:italic t))))
(underline ((t (:underline t))))
))))
(with-selected-frame (make-frame '((minibuffer . nil)))
(set-frame-font (font-spec :family "Monaco"))) ;; "DejaVu San Mono"
also causes the crash
2. Start emacs
$ emacs -Q -l ~/crash.el
Emacs now crashes.
Only the last two lines of the script are not taken from color-mode and
they can be run at any time. The issue only occurs when running in a
GUI.
Regards,
Mat
A short stack trace follows:
Starting program: /usr/bin/emacs24-x -Q -l ~/bug-consistent-crash.el
[Thread debugging using libthread_db enabled]
Using host libthread_db library
"/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe9cff700 (LWP 12593)]
[New Thread 0x7fffe94fe700 (LWP 12594)]
Program received signal SIGSEGV, Segmentation fault.
font_open_for_lface (f=f <at> entry=0x115fe00, entity=18342333,
attrs=attrs <at> entry=0x1155f20, spec=spec <at> entry=18243669) at
font.c:3244
3244 font.c: No such file or directory.
#0 font_open_for_lface (f=f <at> entry=0x115fe00, entity=18342333,
attrs=attrs <at> entry=0x1155f20, spec=spec <at> entry=18243669) at
font.c:3244
def = 0x0
height = <error reading variable height (Cannot access memory at
address 0x90)>
pt = <optimized out>
size = <optimized out>
#1 0x0000000000565b41 in font_load_for_lface (f=0x115fe00,
f <at> entry=<error reading variable: Cannot access memory at address
0x7fffffffc8c0>, attrs=0x1155f20, spec=spec <at> entry=18243669) at
font.c:3285
entity = <optimized out>
name = <optimized out>
#2 0x00000000004a88b2 in Finternal_set_lisp_face_attribute
(face=12154754,
face <at> entry=<error reading variable: Cannot access memory at address
0x7fffffffc908>, attr=12152626, value=18243669, frame=18218501) at
xfaces.c:3148
attrs = <optimized out>
font_object = <optimized out>
f = <error reading variable f (Cannot access memory at address
0x7fffffffc8c0)>
lface = 18177813
old_value = 12154610
prop_index = FONT_TYPE_INDEX
In GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.7)
of 2014-03-07 on lamiak, modified by Debian
Windowing system distributor `The X.Org Foundation', version
11.0.11501000
System Description: Ubuntu 14.04 LTS
Configured using:
`configure '--build' 'x86_64-linux-gnu' '--build' 'x86_64-linux-gnu'
'--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib'
'--localstatedir=/var/lib' '--infodir=/usr/share/info'
'--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.3/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.3/site-lisp:/usr/share/emacs/site-lisp'
'--with-crt-dir=/usr/lib/x86_64-linux-gnu' '--with-x=yes'
'--with-x-toolkit=gtk3' '--with-toolkit-scroll-bars'
'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector
--param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall'
'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro'
'CPPFLAGS=-D_FORTIFY_SOURCE=2''
Important settings:
value of $LC_CTYPE: en_US.UTF-8
value of $LANG: en_US.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix
default enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
tooltip-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
M-x r e p o r t - e <tab> <return>
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Load-path shadows:
None found.
Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils time-date tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment lisp-mode register page menu-bar
rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax
facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak
czech european ethiopic indian cyrillic chinese case-table epa-hook
jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces
cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
make-network-process dbusbind dynamic-setting system-font-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs)
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