Bug#462748: gdm: GDM segfaults on shutdown

[Michael Burschik]

Package: gdm
Version: 2.20.3-1
Severity: minor

On shutdown, DGM crashes with the following error (from /var/log/messages):

kernel: gdm[3200]: segfault at 0000000000000018 rip 00002ac96c6a8cb8 rsp 00007fff41539ba0 error 6

I am currently running 2.6.24, but the problem also occurs with Debians 2.6.22-3-amd64 kernel.

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.24 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=C, LC_CTYPE=C (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages gdm depends on:
ii  adduser                 3.105            add and remove users and groups
ii  debconf [debconf-2.0]   1.5.18           Debian configuration management sy
ii  gksu                    2.0.0-5          graphical frontend to su
ii  gnome-session           2.20.3-1         The GNOME 2 Session Manager
ii  gnome-terminal [x-termi 2.18.4-1         The GNOME 2 terminal emulator appl
ii  konsole [x-terminal-emu 4:3.5.8.dfsg.1-7 X terminal emulator for KDE
ii  kwin [x-window-manager] 4:3.5.8.dfsg.1-7 the KDE window manager
ii  libart-2.0-2            2.3.19-3         Library of functions for 2D graphi
ii  libatk1.0-0             1.20.0-1         The ATK accessibility toolkit
ii  libattr1                1:2.4.39-1       Extended attribute shared library
ii  libc6                   2.7-6            GNU C Library: Shared libraries
ii  libcairo2               1.4.14-1         The Cairo 2D vector graphics libra
ii  libdbus-1-3             1.1.2-1          simple interprocess messaging syst
ii  libdbus-glib-1-2        0.74-1           simple interprocess messaging syst
ii  libdmx1                 1:1.0.2-2        X11 Distributed Multihead extensio
ii  libfontconfig1          2.5.0-2          generic font configuration library
ii  libglade2-0             1:2.6.2-1        library to load .glade files at ru
ii  libglib2.0-0            2.14.5-2         The GLib library of C routines
ii  libgnomecanvas2-0       2.20.1.1-1       A powerful object-oriented display
ii  libgtk2.0-0             2.12.5-2         The GTK+ graphical user interface 
ii  libpam-modules          0.99.7.1-5       Pluggable Authentication Modules f
ii  libpam-runtime          0.99.7.1-5       Runtime support for the PAM librar
ii  libpam0g                0.99.7.1-5       Pluggable Authentication Modules l
ii  libpango1.0-0           1.18.4-1         Layout and rendering of internatio
ii  librsvg2-2              2.20.0-1         SAX-based renderer library for SVG
ii  librsvg2-common         2.20.0-1         SAX-based renderer library for SVG
ii  libselinux1             2.0.15-2+b1      SELinux shared libraries
ii  libwrap0                7.6.dbs-14       Wietse Venema's TCP wrappers libra
ii  libx11-6                2:1.0.3-7        X11 client-side library
ii  libxau6                 1:1.0.3-2        X11 authorisation library
ii  libxdmcp6               1:1.0.2-2        X11 Display Manager Control Protoc
ii  libxext6                1:1.0.3-2        X11 miscellaneous extension librar
ii  libxi6                  2:1.1.3-1        X11 Input extension library
ii  libxinerama1            1:1.0.2-1        X11 Xinerama extension library
ii  libxml2                 2.6.31.dfsg-1    GNOME XML library
ii  lsb-base                3.1-24           Linux Standard Base 3.1 init scrip
ii  metacity [x-window-mana 1:2.20.2-1       A lightweight GTK2 based Window Ma
ii  twm [x-window-manager]  1:1.0.3-3        Tab window manager
ii  xterm [x-terminal-emula 231-1            X terminal emulator

Versions of packages gdm recommends:
ii  gdm-themes                   0.5.1       Themes for the GNOME Display Manag
ii  whiptail                     0.52.2-11.1 Displays user-friendly dialog boxe
pn  xserver-xephyr | xnest       <none>      (no description available)
ii  xserver-xorg                 1:7.3+10    the X.Org X server
ii  zenity                       2.20.1-1    Display graphical dialog boxes fro

-- debconf information:
  gdm/daemon_name: /usr/bin/gdm
* shared/default-x-display-manager: gdm