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and subject line Bug#278268: capplets: gnome-font-viewer crashes when hinting
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From: Peter Whysall <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: capplets: gnome-font-viewer crashes when hinting is changed twice
Bcc: Peter Whysall <[EMAIL PROTECTED]>
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Package: capplets
Version: 1:2.8.0-1
Severity: important
Tags: experimental
gnome-font-viewer crashes with a segmentation fault when the hinting preference
is changed twice.
Steps to reproduce:
1. Use gnome-font-viewer to view any font
2. Open the Font Preferences panel and enter the Details... panel.
3. Change the hinting twice.
Backtrace follows:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1087639456 (LWP 18717)]
0x40aea763 in strlen () from /lib/tls/i686/cmov/libc.so.6
(gdb) bt
#0 0x40aea763 in strlen () from /lib/tls/i686/cmov/libc.so.6
#1 0x4002eb6d in _XftSetFace () from /usr/lib/libXft.so.2
#2 0x4002f9fe in XftFontCopy () from /usr/lib/libXft.so.2
#3 0x4002fbd3 in XftFontManageMemory () from /usr/lib/libXft.so.2
#4 0x4002fc9a in XftFontClose () from /usr/lib/libXft.so.2
#5 0x40815a8a in pango_xft_picture_render () from /usr/lib/libpangoxft-1.0.so.0
#6 0x408663a9 in g_object_interface_list_properties () from
/usr/lib/libgobject-2.0.so.0
#7 0x4083a598 in pango_item_free () from /usr/lib/libpango-1.0.so.0
#8 0x4083de8a in pango_layout_get_pixel_size () from /usr/lib/libpango-1.0.so.0
#9 0x4083f603 in pango_layout_line_unref () from /usr/lib/libpango-1.0.so.0
#10 0x4083dc83 in pango_layout_get_pixel_size () from /usr/lib/libpango-1.0.so.0
#11 0x4083a872 in pango_layout_get_type () from /usr/lib/libpango-1.0.so.0
#12 0x408663a9 in g_object_interface_list_properties () from
/usr/lib/libgobject-2.0.so.0
#13 0x4057a2e8 in gtk_label_get () from /usr/lib/libgtk-x11-2.0.so.0
#14 0x40878e1e in g_cclosure_marshal_VOID__OBJECT () from
/usr/lib/libgobject-2.0.so.0
#15 0x40863fb7 in g_cclosure_new_swap () from /usr/lib/libgobject-2.0.so.0
#16 0x40863c20 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#17 0x4087744e in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#18 0x40876be7 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#19 0x40876ee4 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#20 0x40690d8c in gtk_widget_modify_font () from /usr/lib/libgtk-x11-2.0.so.0
#21 0x4069036a in gtk_widget_ensure_style () from /usr/lib/libgtk-x11-2.0.so.0
#22 0x4069122d in _gtk_widget_propagate_screen_changed () from
/usr/lib/libgtk-x11-2.0.so.0
#23 0x405f17f3 in gtk_table_get_homogeneous () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x4050b941 in gtk_container_forall () from /usr/lib/libgtk-x11-2.0.so.0
#25 0x4069121b in _gtk_widget_propagate_screen_changed () from
/usr/lib/libgtk-x11-2.0.so.0
#26 0x404d0d85 in gtk_box_set_child_packing () from /usr/lib/libgtk-x11-2.0.so.0
#27 0x4050b941 in gtk_container_forall () from /usr/lib/libgtk-x11-2.0.so.0
#28 0x4069121b in _gtk_widget_propagate_screen_changed () from
/usr/lib/libgtk-x11-2.0.so.0
#29 0x404cccac in gtk_bin_get_type () from /usr/lib/libgtk-x11-2.0.so.0
#30 0x4050b941 in gtk_container_forall () from /usr/lib/libgtk-x11-2.0.so.0
#31 0x4069121b in _gtk_widget_propagate_screen_changed () from
/usr/lib/libgtk-x11-2.0.so.0
#32 0x4069127b in gtk_widget_reset_rc_styles () from
/usr/lib/libgtk-x11-2.0.so.0
#33 0x405c75fa in gtk_rc_style_unref () from /usr/lib/libgtk-x11-2.0.so.0
#34 0x405d613d in gtk_settings_get_default () from /usr/lib/libgtk-x11-2.0.so.0
#35 0x40878bae in g_cclosure_marshal_VOID__PARAM () from
/usr/lib/libgobject-2.0.so.0
#36 0x40863fb7 in g_cclosure_new_swap () from /usr/lib/libgobject-2.0.so.0
#37 0x40863c20 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#38 0x4087744e in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#39 0x40876be7 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#40 0x40876ee4 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#41 0x40866465 in g_object_interface_list_properties () from
/usr/lib/libgobject-2.0.so.0
#42 0x4086554f in g_object_type_init () from /usr/lib/libgobject-2.0.so.0
#43 0x4086af5f in g_cclosure_new_object_swap () from
/usr/lib/libgobject-2.0.so.0
#44 0x408666c9 in g_object_notify () from /usr/lib/libgobject-2.0.so.0
#45 0x405d7cb3 in _gtk_settings_handle_event () from
/usr/lib/libgtk-x11-2.0.so.0
#46 0x4058cd78 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#47 0x4078b185 in _gdk_events_queue () from /usr/lib/libgdk-x11-2.0.so.0
#48 0x40a15b92 in g_main_depth () from /usr/lib/libglib-2.0.so.0
#49 0x40a16c88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#50 0x40a16fc0 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#51 0x40a17603 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#52 0x4058c4e3 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#53 0x0804bad9 in main ()
-- System Information:
Debian Release: 3.1
APT prefers experimental
APT policy: (1001, 'experimental'), (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.8
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages capplets depends on:
ii capplets-data 1:2.8.0-1 configuration applets for GNOME 2
ii gnome-control-center 1:2.8.0-1 The GNOME Control Center for GNOME
ii gnome-desktop-data 2.8.1-1 Common files for GNOME 2 desktop a
ii gnome-icon-theme 1.2.3-1.1 GNOME Desktop icon theme
ii gnome-panel 2.8.1-1 Launcher and docking facility for
ii gnome-session 2.8.0-1 The GNOME 2 Session Manager
ii libart-2.0-2 2.3.16-6 Library of functions for 2D graphi
ii libasound2 1.0.6-3 ALSA library
ii libatk1.0-0 1.8.0-2 The ATK accessibility toolkit
ii libaudiofile0 0.2.6-4 Open-source version of SGI's audio
ii libbonobo2-0 2.8.0-2 Bonobo CORBA interfaces library
ii libbonoboui2-0 2.8.0-1 The Bonobo UI library
ii libc6 2.3.2.ds1-18 GNU C Library: Shared libraries an
ii libeel2-2 2.8.1-1 Eazel Extensions Library (for GNOM
ii libesd0 0.2.35-2 Enlightened Sound Daemon - Shared
ii libfontconfig1 2.2.3-2 generic font configuration library
ii libfreetype6 2.1.7-2.2 FreeType 2 font engine, shared lib
ii libgail-common 1.8.0-1 GNOME Accessibility Implementation
ii libgail17 1.8.0-1 GNOME Accessibility Implementation
ii libgconf2-4 2.8.1-1 GNOME configuration database syste
ii libgcrypt11 1.2.0-10 LGPL Crypto library - runtime libr
ii libglade2-0 1:2.4.0-1 Library to load .glade files at ru
ii libglib2.0-0 2.4.7-1 The GLib library of C routines
ii libgnome-desktop-2 2.8.1-1 Utility library for loading .deskt
ii libgnome-keyring0 0.4.0-1 GNOME keyring services library
ii libgnome2-0 2.8.0-1 The GNOME 2 library - runtime file
ii libgnomecanvas2-0 2.7.1-1 A powerful object-oriented display
ii libgnomeui-0 2.8.0-1 The GNOME 2 libraries (User Interf
ii libgnomevfs2-0 2.8.2-1 The GNOME virtual file-system libr
ii libgnutls11 1.0.16-9 GNU TLS library - runtime library
ii libgpg-error0 1.0-1 library for common error values an
ii libgstreamer-plugins0.8-0 0.8.5-1 Various GStreamer libraries and li
ii libgstreamer0.8-0 0.8.7-1 Core GStreamer libraries, plugins,
ii libgtk2.0-0 2.4.13-1 The GTK+ graphical user interface
ii libice6 4.3.0.dfsg.1-8 Inter-Client Exchange library
ii libjpeg62 6b-9 The Independent JPEG Group's JPEG
ii libmetacity0 1:2.8.5-2 Common library of lightweight GTK2
ii libnautilus2-2 2.8.1-1 libraries for nautilus components
ii liborbit2 1:2.10.2-1.1 libraries for ORBit2 - a CORBA ORB
ii libpango1.0-0 1.6.0-1 Layout and rendering of internatio
ii libpopt0 1.7-5 lib for parsing cmdline parameters
ii libsm6 4.3.0.dfsg.1-8 X Window System Session Management
ii libstartup-notification0 0.7-1 library for program launch feedbac
ii libtasn1-2 0.2.10-4 Manage ASN.1 structures (runtime)
ii libx11-6 4.3.0.dfsg.1-8 X Window System protocol client li
ii libxext6 4.3.0.dfsg.1-8 X Window System miscellaneous exte
ii libxft2 2.1.2-6 FreeType-based font drawing librar
ii libxklavier8 1.03-1 X Keyboard Extension high-level AP
ii libxml2 2.6.14-1 GNOME XML library
ii libxrandr2 4.3.0.dfsg.1-8 X Window System Resize, Rotate and
ii libxrender1 0.8.3-7 X Rendering Extension client libra
ii nautilus 2.8.1-1 file manager and graphical shell f
ii xlibs 4.3.0.dfsg.1-8 X Window System client libraries m
ii zlib1g 1:1.2.2-1 compression library - runtime
-- no debconf information
---------------------------------------
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Date: Tue, 29 Mar 2005 13:11:12 -0500
From: Branden Robinson <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: Bug#278268: capplets: gnome-font-viewer crashes when hinting is
changed twice
Message-ID: <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
References: <[EMAIL PROTECTED]> <[EMAIL PROTECTED]>
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On Sat, Mar 26, 2005 at 08:36:28AM +0000, Peter Whysall wrote:
> On Sat, 2005-03-26 at 01:37 -0500, Branden Robinson wrote:
> > retitle 278268 libxft2: SEGV in strlen() <- _XftSetFace() when hinting =
in gnome-font-viewer (capplets) changed twice
> > tag 278268 + upstream moreinfo
> > thanks
> >=20
> > Mr. Whysall,
> >=20
> > Can you still reproduce this problem?
> >=20
> > If so, could you please provide a full backtrace (with the GDB "bt full=
")
> > command while using the debugging version of the Xft2 library?
>=20
> Mr Robinson,
>=20
> Subsequent to my bug report, I have switched to Ubuntu (Hoary). I don't
> know whether the following information is of any use to you but I cannot
> reproduce the bug.
The only change in Ubunty (hoary) appears to be a backport of a couple of
fixes from freedesktop.org xlibs CVS.
----------------------------
revision 1.45
date: 2004-11-28 22:15:58 +0000; author: keithp; state: Exp; lines: +2 -2
2004-11-28 James Henstridge <[EMAIL PROTECTED]>
* xftfreetype.c (_XftReleaseFile): add parentheses in the
expression in the second argument to XftMemFree so that it is
interpreted correctly.
----------------------------
revision 1.44
date: 2004-08-04 03:45:11 +0000; author: keithp; state: Exp; lines: +3 -2
2004-08-03 Keith Packard <[EMAIL PROTECTED]>
* xftfreetype.c: (_XftReleaseFile):
Called strlen with (f->file) without checking for NULL (which
happens when directly using FT_Face objects).
----------------------------
The bug you're reporting, however, is in _XftSetFace(), not
_XftReleaseFile(). Furthermore, in the version of Xft currently in Debian
testing/unstable (and Ubuntu hoary), _XftSetFace() does not call strlen()
at all.
Either the backtrace is bogus (always a possibility), or this bug has
indeed been fixed already.
> I have asked a friend of mine who is running Debian Unstable to examine
> the bug and check if it can be reproduced; I expect he will reply to the
> bug directly.
He did indeed followup and report that he can no longer reproduce it.
(Assuming Greg Folkert is the friend in question. :) )
>=20
> (Based on this -- the same version of libxft2, packaging notwithstanding
> -- it's starting to smell like a GNOME bug)
I agree, and am therefore closing this bug.
--=20
G. Branden Robinson | There's no trick to being a
Debian GNU/Linux | humorist when you have the whole
[EMAIL PROTECTED] | government working for you.
http://people.debian.org/~branden/ | -- Will Rogers
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