Xubuntu crashes randomly

[Remco Haszing]

20-04: I did a fresh Xubuntu 13.04 install (Everything worked fine, except that lightdm sometimes didn't start)
21-04: I decided to use compiz, because xfwm has tearing windows. Compiz preferences don't stick, I'm not sure if this is a compiz or an xfce issue.
23-04: My Xfce session suddenly started crashing randomly, even after removing compiz. I'm now using LXDE, because Xfce currenly is unusable. Xfce mostly crashes after opening about three random windows.

dmesg:
[ 3563.937503] xfce4-session[20493]: segfault at ffffffff00000000 ip 00007f4599854f7f sp 00007fff01ce54e0 error 5 in libglib-2.0.so.0.3600.0[7f45997f1000+f9000]

.xsession-errors:
openConnection: connect: No such file or directory
cannot connect to brltty at :0
xmodmap: /home/remco/.Xmodmap:1: bad keysym in remove modifier list 'Caps_Lock', no corresponding keycodes
xmodmap: 1 error encountered, aborting.
xfce4-session-Message: ssh-agent is already running

(xfce4-session:20493): GLib-WARNING **: GChildWatchSource: Exit status of a child process was requested but ECHILD was received by waitpid(). Most likely the process is ignoring SIGCHLD, or some other thread is invoking waitpid() with a nonpositive first argument; either behavior can break applications that use g_child_watch_add()/g_spawn_sync() either directly or indirectly.
ConfigBase::load: config format is not valid
[profiles,default]: background_image is invalid
Warning: python-keybinder is not installed. This means the hide_window shortcut will be unavailable
Unable to bind hide_window key, another instance/window has it.

** (zeitgeist-datahub:20584): WARNING **: recent-manager-provider.vala:133: Desktop file for "file:///home/backup/Other/Dropbox/PTS-ESD/SysteemOntwerp/Database/InvoiceSystemNew.mwb" was not found, exec: mysql-workbench-bin, mime_type: application/vnd.mysql-workbench-model

** (zeitgeist-datahub:20584): WARNING **: recent-manager-provider.vala:133: Desktop file for "file:///usr/bin/terminator" was not found, exec: exo-helper-1, mime_type: application/octet-stream
ConfigBase::load: config format is not valid
[profiles,default]: background_image is invalid
WARNING: gnome-keyring:: couldn't connect to: /run/user/remco/keyring-N6pNmh/pkcs11: No such file or directory
Warning: python-keybinder is not installed. This means the hide_window shortcut will be unavailable
Unable to bind hide_window key, another instance/window has it.

(polkit-gnome-authentication-agent-1:20555): GLib-CRITICAL **: g_variant_new_string: assertion `string != NULL' failed

(polkit-gnome-authentication-agent-1:20555): polkit-gnome-1-WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
** Message: applet now removed from the notification area
** Message: using fallback from indicator to GtkStatusIcon
xfce4-panel: No window manager registered on screen 0. To start the panel without this check, run with --disable-wm-check.
** Message: applet now embedded in the notification area
xfsettingsd: No window manager registered on screen 0.

(xfsettingsd:20503): xfsettingsd-WARNING **: Failed to get the _NET_NUMBER_OF_DESKTOPS property.
WARNING: gnome-keyring:: couldn't connect to: /run/user/remco/keyring-N6pNmh/pkcs11: No such file or directory
ConfigBase::load: config format is not valid
[profiles,default]: background_image is invalid
Warning: python-keybinder is not installed. This means the hide_window shortcut will be unavailable
Unable to bind hide_window key, another instance/window has it.
<Window object at 0x108d3c0 (terminatorlib+window+Window at 0xbf7480)> is not in registered window list
<Window object at 0x254d410 (terminatorlib+window+Window at 0x1f36480)> is not in registered window list

(xfce4-session:20493): GLib-WARNING **: GChildWatchSource: Exit status of a child process was requested but ECHILD was received by waitpid(). Most likely the process is ignoring SIGCHLD, or some other thread is invoking waitpid() with a nonpositive first argument; either behavior can break applications that use g_child_watch_add()/g_spawn_sync() either directly or indirectly.

(xfsettingsd:20503): libxfce4ui-WARNING **: ICE I/O Error

(xfsettingsd:20503): libxfce4ui-WARNING **: Disconnected from session manager.

(xfce4-panel:20501): libxfce4ui-WARNING **: ICE I/O Error

(xfce4-panel:20501): libxfce4ui-WARNING **: Disconnected from session manager.

(xfce4-volumed:20709): xfce4-volumed-CRITICAL **: xvd_context_state_callback: The connection failed or was disconnected, is PulseAudio Daemon running?
Segmentation fault (core dumped)
Thunar: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
xfsettingsd: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
xfce4-panel: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
wrapper: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
synapse: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.

(nm-applet:20553): Gdk-WARNING **: nm-applet: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.

(gedit:20850): Gdk-WARNING **: gedit: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.

(polkit-gnome-authentication-agent-1:20555): Gdk-WARNING **: polkit-gnome-authentication-agent-1: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.

xfce4-volumed: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
applet.py: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
gajim: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
blueman-applet: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
dropbox: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
xfce4-settings-manager: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
xfwm4-settings: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.

** (zeitgeist-datahub:20584): WARNING **: zeitgeist-datahub.vala:231: Unable to get name "org.gnome.zeitgeist.datahub" on the bus!

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xfce4-session 4.10.0-2ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Tue Apr 23 22:40:47 2013
InstallationDate: Installed on 2013-04-20 (3 days ago)
InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130403)
MarkForUpload: True
SourcePackage: xfce4-session
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[oregu (ol-loginov)]

got the same issue after do-release-upgrade yesterday

[Grant Johnston (deejay-myself)]

Did a dist-upgrade a few days ago, getting all these issues. Tried browsing ubuntuforums and here to no avail. tried removing xfce4-sessions, .config/, uhhhhh quite a few other things as well. Can't wait to get it fixed as XFCE is the only GUI that lets me use 3 monitors on my desktop in *nix land.

[Alex Rossovsky (rlexey)]

same issue

[Ricardo F. Teixeira (ricardo.teixas)]

Aapparently the bug has been fixed upstream: http://git.xfce.org/xfce/xfce4-session/commit/?id=ab391138cacc62ab184a338e237c4430356b41f9

[Grant Johnston (deejay-myself)]

I finally gave up on it today and installed Kali-Linux. Although it uses an old version of XFCE I don't like.

Considering going to BT since its built on Ubuntu to see if the version of XFCE is better. If its not maybe I can get the Xubuntu version I'm wanting to use or build it from source. If not I'm probably going to downgrade to 12.04 or 12.10 if I can find a disk since I can't find the download anymore :-/ because a lot of the repos I use aren't 13.04 compatible yet.

And if I have to get Ubuntu going again ill try and build the BT tools on there

[mantozap (miccaelsciumi)]

I had the really same issue, except that I could reproduce it by simply clicking the "Log Out..." button.
I don't know if it is related to, but after each login I had a warning from hddtemp. I did the (not so) suggested:

 chmod u+s /usr/sbin/hddtemp

and now everything seems to work fine. I can logout normally and I opened up to 20 windows without crashes.

[Grant Johnston (deejay-myself)]

Something else i was thinking about last night

Does anyone run compiz? it seemed to speed up the problem if Compiz was running

And See if you guys can reproduce the error by opening xfce4-terminal and the gnome one. Not xterm, but the other two.

There were times it seemed as though as soon as I opened a term in x as opposed to a ttty one it caused the bug as well

[Piotr Maliński (riklaunim)]

I just upgraded to 13.04 and got it too. I was running some XFCE4 PPA on 12.10 without those crashes.

[Bjorn Madsen (esprit-tordu)]

I am getting this problem without running compiz. I am, however, running the experimental fglrx driver from the repos.

[johnw.chrome (johnw-chrome)]

I fresh installed xubuntu 13.04 a few weeks W/O this problem,
but I do not know why, I have this problem today after I installed wine-1.5 from ppa(maybe not related).
anyone know workaround for this bugs?
how do you fixed this?
I can not launch xfdesktop now, xfdesktop coredump everytime.
(xfdesktop[2626]: segfault at 0 ip b6b52330 sp bfe4dd08 error 4 in libglib-2.0.so.0.3600.0[b6ada000+ff000)
thank you.

[Bjorn Madsen (esprit-tordu)]

I am still getting this problem after getting rid of fglrx and other proprietary drivers and using the opensource radeon driver.

[ilia_2s (ilia-2s)]

same here

[RNZ (renoizer)]

same bug - .xsession-errors-fatal:

openConnection: connect: No such file or directory
cannot connect to brltty at :0
Script for cjkv started at run_im.
Script for default started at run_im.
Script for cjkv started at run_im.
Script for default started at run_im.

(xfce4-session:3016): GLib-WARNING **: GChildWatchSource: Exit status of a child process was requested but ECHILD was received by waitpid(). Most likely the process is ignoring SIGCHLD, or some other thread is invoking waitpid() with a nonpositive first argument; either behavior can break applications that use g_child_watch_add()/g_spawn_sync() either directly or indirectly.

(xfce4-indicator-plugin:3060): libindicator-WARNING **: IndicatorObject class does not have an accessible description.

(polkit-gnome-authentication-agent-1:3135): GLib-CRITICAL **: g_variant_new_string: assertion `string != NULL' failed

(polkit-gnome-authentication-agent-1:3135): polkit-gnome-1-WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files

(xfdesktop:3030): GLib-GIO-CRITICAL **: g_file_get_path: assertion `G_IS_FILE (file)' failed

(xfdesktop:3030): GLib-GIO-CRITICAL **: g_file_get_path: assertion `G_IS_FILE (file)' failed
** Message: applet now removed from the notification area

(xfce4-indicator-plugin:3060): Gtk-CRITICAL **: IA__gtk_widget_realize: assertion `GTK_WIDGET_ANCHORED (widget) || GTK_IS_INVISIBLE (widget)' failed

(update-notifier:3141): GLib-GObject-CRITICAL **: g_object_get_data: assertion `G_IS_OBJECT (object)' failed

(xfce4-terminal:3032): Gdk-CRITICAL **: IA__gdk_window_get_window_type: assertion `GDK_IS_WINDOW (window)' failed

(xfce4-session:3016): GLib-WARNING **: GChildWatchSource: Exit status of a child process was requested but ECHILD was received by waitpid(). Most likely the process is ignoring SIGCHLD, or some other thread is invoking waitpid() with a nonpositive first argument; either behavior can break applications that use g_child_watch_add()/g_spawn_sync() either directly or indirectly.

(xfwm4:3026): libxfce4ui-WARNING **: ICE I/O Error

(xfsettingsd:3031): libxfce4ui-WARNING **: ICE I/O Error

(xfwm4:3026): libxfce4ui-WARNING **: Disconnected from session manager.

(xfsettingsd:3031): libxfce4ui-WARNING **: Disconnected from session manager.

(xfdesktop:3030): libxfce4ui-WARNING **: ICE I/O Error

(xfdesktop:3030): libxfce4ui-WARNING **: Disconnected from session manager.

(xfce4-panel:3029): libxfce4ui-WARNING **: ICE I/O Error

(xfce4-panel:3029): libxfce4ui-WARNING **: Disconnected from session manager.
Segmentation fault (core dumped)

(xfce4-volumed:3159): xfce4-volumed-CRITICAL **: xvd_context_state_callback: The connection failed or was disconnected, is PulseAudio Daemon running?
xfwm4: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
xfsettingsd: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
Thunar: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
wrapper: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
wrapper: Fatal IO error 11 (Resource temporarily unava...

[Fred Baumgarten (dc6iq)]

I can confirm this bug; it's really horrible - almost every time after a few seconds being logged in X11 crashes (64 bit related bug ?). When can we expect a fix for the release ?

[cobbautpaul (paul-cobbaut)]

I can confirm the same bug, since yesterday (since I installed wine).

From syslog:
Jul 8 23:26:48 mac kernel: [ 795.296506] xfce4-session[2407]: segfault at ffffffff00000000 ip 00007f591b552f7f sp 00007fffc74f7ab0 error 5 in libglib-2.0.so.0.3600.0[7f591b4ef000+f9000]
Jul 8 23:26:52 mac acpid: client 2243[0:0] has disconnected
Jul 8 23:26:52 mac acpid: client 2243[0:0] has disconnected
Jul 8 23:26:52 mac acpid: client connected from 4233[0:0]
Jul 8 23:26:52 mac acpid: 1 client rule loaded
Jul 8 23:26:53 mac acpid: client connected from 4233[0:0]
Jul 8 23:26:53 mac acpid: 1 client rule loaded
Jul 8 23:27:04 mac rtkit-daemon[2043]: Successfully made thread 4517 of process 4517 (n/a) owned by '1000' high priority at nice level -11.
Jul 8 23:27:04 mac rtkit-daemon[2043]: Supervising 1 threads of 1 processes of 1 users.
Jul 8 23:27:04 mac rtkit-daemon[2043]: Successfully made thread 4577 of process 4517 (n/a) owned by '1000' RT at priority 5.
Jul 8 23:27:04 mac rtkit-daemon[2043]: Supervising 2 threads of 1 processes of 1 users.
Jul 8 23:27:04 mac rtkit-daemon[2043]: Successfully made thread 4578 of process 4517 (n/a) owned by '1000' RT at priority 5.
Jul 8 23:27:04 mac rtkit-daemon[2043]: Supervising 3 threads of 1 processes of 1 users.
Jul 8 23:27:04 mac rtkit-daemon[2043]: Successfully made thread 4581 of process 4581 (n/a) owned by '1000' high priority at nice level -11.
Jul 8 23:27:04 mac rtkit-daemon[2043]: Supervising 4 threads of 2 processes of 1 users.
Jul 8 23:27:04 mac pulseaudio[4581]: [pulseaudio] pid.c: Daemon already running.
Jul 8 23:27:04 mac rtkit-daemon[2043]: Successfully made thread 4596 of process 4596 (n/a) owned by '1000' high priority at nice level -11.
Jul 8 23:27:04 mac rtkit-daemon[2043]: Supervising 4 threads of 2 processes of 1 users.
Jul 8 23:27:04 mac pulseaudio[4596]: [pulseaudio] pid.c: Daemon already running.
Jul 8 23:27:05 mac dbus[920]: [system] Activating service name='org.blueman.Mechanism' (using servicehelper)
Jul 8 23:27:05 mac blueman-mechanism: Starting blueman-mechanism
Jul 8 23:27:05 mac dbus[920]: [system] Successfully activated service 'org.blueman.Mechanism'
Jul 8 23:27:05 mac blueman-mechanism: loading Ppp
Jul 8 23:27:05 mac blueman-mechanism: loading Config
Jul 8 23:27:05 mac blueman-mechanism: loading Network
Jul 8 23:27:05 mac blueman-mechanism: loading RfKill
Jul 8 23:27:35 mac blueman-mechanism: Exiting

[Mario Romano (mromano1971)]

After upgraded Xubuntu from 13.04 to 13.10, I had a similar problem: when I performed a login an empty desktop is appeared and the mouse pointer was not visible more, while if I performed a login under Guest Session the issue did not occur.

I bypassed the issue of my user by removing the .config directory.

[Hiperion (hiperionr3)]

  I had a similar problem and I've solved it with:

sudo chown user01:user01 /home/user01/.Xauthority