GNU bug report logs - #29632
25.3; Core dump after changing fonts

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Thomas Morgan <tlm <at> ziiuu.com>
Subject: bug#29632: closed (Re: bug#29632: 25.3; Core dump after changing
 fonts)
Date: Sun, 10 Dec 2017 08:45:03 +0000

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Your bug report

#29632: 25.3; Core dump after changing fonts

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 29632 <at> debbugs.gnu.org.

-- 
29632: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=29632
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Thomas Morgan <tlm <at> ziiuu.com>
Cc: 29632-done <at> debbugs.gnu.org
Subject: Re: bug#29632: 25.3; Core dump after changing fonts
Date: Sun, 10 Dec 2017 10:43:53 +0200

> From: Thomas Morgan <tlm <at> ziiuu.com>
> Date: Sat, 09 Dec 2017 16:34:09 -0500
> 
> I started emacs with `emacs -Q', entered the following in *scratch*,
> and evaluated with C-M-x.
> 
>   (progn
>     (create-fontset-from-fontset-spec
>      "-*-Liberation Mono-normal-normal-normal-*-*-*-*-*-m-0-fontset-liberation")
>     (set-fontset-font "fontset-liberation" 'unicode-bmp "Freemono")
>     (set-face-font 'default "fontset-liberation")
>     (font-at 0 nil "ɏ")       ; 0x024F: LATIN SMALL LETTER Y WITH STROKE
>     (set-fontset-font "fontset-auto1" 'unicode-bmp "Freemono")
>     (font-at 0 nil "ɐ"))      ; 0x0250: LATIN SMALL LETTER TURNED A
> 
> This caused a core dump:
> 
>   Fatal error 11: Segmentation fault

Thanks, fixed for Emacs 26.

[Message part 3 (message/rfc822, inline)]

From: Thomas Morgan <tlm <at> ziiuu.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.3; Core dump after changing fonts
Date: Sat, 09 Dec 2017 16:34:09 -0500

I started emacs with `emacs -Q', entered the following in *scratch*,
and evaluated with C-M-x.

  (progn
    (create-fontset-from-fontset-spec
     "-*-Liberation Mono-normal-normal-normal-*-*-*-*-*-m-0-fontset-liberation")
    (set-fontset-font "fontset-liberation" 'unicode-bmp "Freemono")
    (set-face-font 'default "fontset-liberation")
    (font-at 0 nil "ɏ")       ; 0x024F: LATIN SMALL LETTER Y WITH STROKE
    (set-fontset-font "fontset-auto1" 'unicode-bmp "Freemono")
    (font-at 0 nil "ɐ"))      ; 0x0250: LATIN SMALL LETTER TURNED A

This caused a core dump:

  Fatal error 11: Segmentation fault

Information from report-emacs-bug:

In GNU Emacs 25.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.21)
 of 2017-11-05 built on localhost
Windowing system distributor 'The X.Org Foundation', version 11.0.11905000
Configured using:
 'configure --disable-dependency-tracking
 --prefix=/nix/store/7px74nmmy9wnl594jsk0lcgz1ygsbwfj-emacs-25.3
 --with-modules --with-x-toolkit=gtk3 --with-xft'

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND DBUS GSETTINGS NOTIFY LIBSELINUX GNUTLS
LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 MODULES

Important settings:
  value of $LC_ALL: en_US.utf8
  value of $LC_COLLATE: C
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-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 messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message dired format-spec rfc822 mml
mml-sec password-cache epg epg-config gnus-util mm-decode mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail
rfc2047 rfc2045 ietf-drums mm-util help-fns help-mode easymenu
cl-loaddefs pcase cl-lib mail-prsvr mail-utils time-date mule-util
tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type
mwheel x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment elisp-mode lisp-mode prog-mode register
page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock
font-lock syntax facemenu font-core frame cl-generic cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese charscript case-table epa-hook
jka-cmpr-hook help simple abbrev minibuffer cl-preloaded nadvice
loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote dbusbind inotify dynamic-setting
system-font-setting font-render-setting move-toolbar gtk x-toolkit x
multi-tty make-network-process emacs)

Memory information:
((conses 16 86871 5800)
 (symbols 48 19952 0)
 (miscs 40 46 96)
 (strings 32 14532 4936)
 (string-bytes 1 432130)
 (vectors 16 11866)
 (vector-slots 8 438242 4685)
 (floats 8 166 6)
 (intervals 56 196 0)
 (buffers 976 18))

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