Bug#653965: xfce4-session: Strange desktop behaviour after corruption of xfce4-session cache

Package: xfce4-session
Version: 4.6.2-3
Severity: normal

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Strange xfce desktop behaviour includes:
- failure to log-out
(reports "Failed to receive a reply from the session manager")
- log-out panel icon offers to exit panel instead of logout
- panel disappears
- windows have no min/max buttons etc. and cannot be moved

The strange behaviour is not transient: it persists over reboot.
Normal behaviour can be restored by deleting the xfce4-session file in
$HOME/.cache/sessions/.

Problems observed with xfce4-session 4.6.2-3 on both amd64 and i386
architectures. Problems also observed with xfce4-session 4.8.1-3 and
amd64 architecture (Wheezy and LMDE).

Cause of cache corruption unknown.
Corruption noticed after package upgrades but this may not be significant.
The xfce4-session package itself has not been upgraded.

No idea how to reproduce (but corrupt cache files available on request).
It took weeks (and a fresh installation) to make any the connection between
the diverse symptoms.

Other possibly pertinent information: problems observed with kvm virtual
machines with only 512 Mb of RAM. No physical machines available for
testing.

Debian Release: 6.0.3
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages xfce4-session depends on:
ii fortune-mod 1:1.99.1-4 provides fortune cookies on
demand
ii libatk1.0-0 1.30.0-1 The ATK accessibility toolkit
ii libc6 2.11.2-10 Embedded GNU C Library:
Shared lib
ii libcairo2 1.10.2-6~bpo60+1 The Cairo 2D vector
graphics libra
ii libdbus-1-3 1.2.24-4+squeeze1 simple interprocess
messaging syst
ii libdbus-glib-1-2 0.88-2.1 simple interprocess
messaging syst
ii libfontconfig1 2.8.0-2.1 generic font configuration
library
ii libfreetype6 2.4.2-2.1+squeeze3 FreeType 2 font engine,
shared lib
ii libglade2-0 1:2.6.4-1 library to load .glade
files at ru
ii libglib2.0-0 2.24.2-1 The GLib library of C routines
ii libgtk2.0-0 2.20.1-2 The GTK+ graphical user
interface
ii libice6 2:1.0.6-2 X11 Inter-Client Exchange
library
ii libpango1.0-0 1.28.3-1+squeeze2 Layout and rendering of
internatio
ii libsm6 2:1.1.1-1 X11 Session Management library
ii libwnck22 2.30.4-2 Window Navigator
Construction Kit
ii libx11-6 2:1.3.3-4 X11 client-side library
ii libxfce4util4 4.6.2-1 Utility functions library
for Xfce
ii libxfcegui4-4 4.6.4-1 Basic GUI C functions for Xfce4
ii libxfconf-0-2 4.6.2-1 Client library for Xfce4
configure
ii xfce4-settings 4.6.5-2 graphical application for
managing
ii xfconf 4.6.2-1 utilities for managing
settings in
ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime

Versions of packages xfce4-session recommends:
ii consolekit 0.4.1-4 framework for defining and
trackin
ii dbus-x11 1.2.24-4+squeeze1 simple interprocess
messaging syst
ii hal 0.5.14-3 Hardware Abstraction Layer
ii x11-xserver-utils 7.5+3 X server utilities
ii xfce4-panel 4.6.4-1 The Xfce4 desktop
environment pane
ii xfce4-utils 4.6.2-1 Various tools for Xfce
ii xfdesktop4 4.6.2-1+b1 xfce desktop background,
icons and
ii xfwm4 4.6.2-1 window manager of the Xfce
project

Versions of packages xfce4-session suggests:
ii sudo 1.7.4p4-2.squeeze.2 Provide limited super user
privile


Paul Bryan Roberts
pbronline-debian@yahoo.co.uk




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