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bug#3112: 23.0.92; segfault in display-supports-face-attributes-p

From: Richard Hansen
Subject: bug#3112: 23.0.92; segfault in display-supports-face-attributes-p
Date: Tue, 28 Apr 2009 11:41:07 -0400
User-agent: Thunderbird (X11/20090409)

I figured out how to reproduce this segfault:

Set .emacs to the following:

 '(default ((t (:height 121 :family "something-invalid")))))

Then start emacs and let the mouse hover over something that would display a tooltip. After a second or so you'll get the segfault.


Richard Hansen wrote:
Emacs crashed with a segfault. I'm not sure what happened -- I was doing something else at the time (not in Emacs) and when I tried to Alt-Tab back to my Emacs window, I couldn't find it. That's when I noticed that bash had printed 'Segmentation fault'.

I've attached a gdb backtrace.

In GNU Emacs (i486-pc-linux-gnu, GTK+ Version 2.16.1)
 of 2009-04-24 on iridium, modified by Debian
 (emacs-snapshot package, version 1:20090423-1~jaunty1)
Windowing system distributor `The X.Org Foundation', version 11.0.10600000
configured using `configure '--build' 'i486-linux-gnu' '--host' 'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.92/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.92/site-lisp:/usr/share/emacs/site-lisp' '--with-x=yes' '--with-x-toolkit=gtk' 'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 -g -O2' 'LDFLAGS=-g -Wl,--as-needed' 'CPPFLAGS=''

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: en_DK.UTF-8
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Org

Minor modes in effect:
  flyspell-mode: t
  show-paren-mode: t
  mouse-sel-mode: t
  global-hl-line-mode: t
  cua-mode: t
  tabbar-mwheel-mode: t
  tabbar-mode: t
  global-whitespace-mode: t
  tooltip-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
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

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