Bug#550144: epiphany-browser: jacobian.org Kills Epiphany (libfontconfig)

[Marc Fargas]

Package: epiphany-browser
Version: 2.28.0-4
Severity: normal

Hi,
There's a very simple web page that cannot be opened in Epiphany:
    
    http://jacobian.org/writing/python-is-unix/

The only rare thing this page does is use embeded fonts (that thing
that is new in webkit). Epiphany died here:

    Program received signal SIGSEGV, Segmentation fault.
    0x00007ffff24aa800 in ?? () from /usr/lib/libfontconfig.so.1

StackTrace:

    #0  0x00007ffff24aa800 in ?? () from /usr/lib/libfontconfig.so.1
    #1  0x00007ffff24aa8a0 in ?? () from /usr/lib/libfontconfig.so.1
    #2  0x00007ffff24a8577 in FcFontSetSort () from /usr/lib/libfontconfig.so.1
    #3  0x00007ffff24a8b39 in FcFontSort () from /usr/lib/libfontconfig.so.1
    #4  0x00007ffff525c020 in WebCore::FontCache::getFontDataForCharacters (
        this=0x7fffe4c9f5c0, font=..., characters=0x7fffffffa6d0, length=1)
        at ../WebCore/platform/graphics/gtk/FontCacheGtk.cpp:43
    #5  0x00007ffff4fe4ec7 in WebCore::Font::glyphDataForCharacter (
        this=0x7fffe0949ec0, c=<value optimized out>, 
        mirror=<value optimized out>, forceSmallCaps=<value optimized out>)
        at ../WebCore/platform/graphics/FontFastPath.cpp:151
    #6  0x00007ffff4ff40ec in WebCore::WidthIterator::advance (
        this=0x7fffffffa8e0, offset=1, glyphBuffer=0x0)
        at ../WebCore/platform/graphics/WidthIterator.cpp:116
    #7  0x00007ffff4fe4a45 in WebCore::Font::floatWidthForSimpleText (
        this=<value optimized out>, run=..., glyphBuffer=0x0, 
        fallbackFonts=<value optimized out>)
        at ../WebCore/platform/graphics/FontFastPath.cpp:323
    #8  0x00007ffff505b254 in WebCore::Font::width (this=0x7fffdfd482d8, 
        resolver=..., firstLine=true, isLineEmpty=@0x7fffffffb14c, 
        previousLineBrokeCleanly=@0x7fffffffb14d, clear=0x7fffffffb138)
        at ../WebCore/platform/graphics/Font.h:81
    #9  textWidth (this=0x7fffdfd482d8, resolver=..., firstLine=true, 

I have a full core dump available in case you cannot reproduce the bug.

Cheers,
Marc

-- System Information:
Debian Release: 5.0.3
  APT prefers stable
  APT policy: (750, 'stable'), (700, 'testing'), (600, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.30-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages epiphany-browser depends on:
ii  dbus-x11               1.2.16-2          simple interprocess messaging syst
ii  epiphany-browser-data  2.28.0-4          Data files for the GNOME web brows
ii  gnome-icon-theme       2.26.0-1          GNOME Desktop icon theme
ii  iso-codes              3.5.1-1           ISO language, territory, currency,
ii  libatk1.0-0            1.28.0-1          The ATK accessibility toolkit
ii  libavahi-client3       0.6.23-3lenny1    Avahi client library
ii  libavahi-common3       0.6.25-1          Avahi common library
ii  libavahi-gobject0      0.6.25-1          Avahi GObject library
ii  libc6                  2.9-25            GNU C Library: Shared libraries
ii  libcairo2              1.9.2-1           The Cairo 2D vector graphics libra
ii  libdbus-1-3            1.2.16-2          simple interprocess messaging syst
ii  libdbus-glib-1-2       0.82-1            simple interprocess messaging syst
ii  libfontconfig1         2.6.0-4           generic font configuration library
ii  libfreetype6           2.3.9-5           FreeType 2 font engine, shared lib
ii  libgcc1                1:4.4.1-4         GCC support library
ii  libgconf2-4            2.26.2-3          GNOME configuration database syste
ii  libgirepository1.0-0   0.6.5-1           Library for handling GObject intro
ii  libglib2.0-0           2.22.0-1          The GLib library of C routines
ii  libgnome-keyring0      2.26.1-1          GNOME keyring services library
ii  libgtk2.0-0            2.18.2-1          The GTK+ graphical user interface 
ii  libice6                2:1.0.5-1         X11 Inter-Client Exchange library
ii  libnotify1 [libnotify1 0.4.5-1           sends desktop notifications to a n
ii  libnspr4-0d            4.7.1-4           NetScape Portable Runtime Library
ii  libnss3-1d             3.12.3.1-0lenny1  Network Security Service libraries
ii  libpango1.0-0          1.26.0-1          Layout and rendering of internatio
ii  libseed0               2.27.91-1         GObject JavaScript bindings for th
ii  libsm6                 2:1.1.1-1         X11 Session Management library
ii  libsoup-gnome2.4-1     2.28.0-1          an HTTP library implementation in 
ii  libsoup2.4-1           2.28.0-1          an HTTP library implementation in 
ii  libstartup-notificatio 0.10-1            library for program launch feedbac
ii  libwebkit-1.0-2        1.1.15.1-1        Web content engine library for Gtk
ii  libx11-6               2:1.2.99.901-1    X11 client-side library
ii  libxml2                2.7.5.dfsg-1      GNOME XML library
ii  libxslt1.1             1.1.24-2          XSLT processing library - runtime 
ii  zlib1g                 1:1.2.3.3.dfsg-15 compression library - runtime

Versions of packages epiphany-browser recommends:
ii  yelp                     2.28.0+webkit-1 Help browser for GNOME

Versions of packages epiphany-browser suggests:
pn  mozplugger                    <none>     (no description available)

epiphany-webkit depends on no packages.

-- no debconf information