unity-greeter crashed with signal 5 in atspi_dbus_connection_setup_with_g_main()

[John Belton]

This happened when I logged into Ubuntu14.04 Alpha1 after upgrading from 13.10, it caused some of the display to blank for a time but seemed to recover after a few seconds.

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: unity-greeter 14.04.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Uname: Linux 3.13.0-5-generic x86_64
ApportVersion: 2.13.1-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Sun Jan 26 08:18:36 2014
ExecutablePath: /usr/sbin/unity-greeter
InstallationDate: Installed on 2013-09-27 (120 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
ProcCmdline: /usr/sbin/unity-greeter
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/false
Signal: 5
SourcePackage: unity-greeter
StacktraceTop:
 atspi_dbus_connection_setup_with_g_main () from /usr/lib/x86_64-linux-gnu/libatspi.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: unity-greeter crashed with signal 5 in atspi_dbus_connection_setup_with_g_main()
UpgradeStatus: Upgraded to trusty on 2013-12-17 (39 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 atspi_dbus_connection_setup_with_g_main (connection=0x0, context=0x6fe040, context@entry=0x0) at atspi-gmain.c:602
 atspi_set_main_context (cnx=cnx@entry=0x0) at atspi-misc.c:1672
 switch_main_context (cnx=cnx@entry=0x0) at event.c:70
 timeout_reply (data=0x7fff3defd880, data@entry=<error reading variable: value has been optimized out>) at event.c:91
 g_timeout_dispatch (source=0x948620, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:4452

[Launchpad Janitor (janitor)]

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

[Sebastien Bacher (seb128)]

Luke, could you have a look to that one? That's the most report e.u.c issue for unity-greeter in trusty
https://errors.ubuntu.com/problem/7a0ce14fab00948fce6fe9a4f17cf9947b4d6fe1

[Sebastien Bacher (seb128)]

bug #1237569 seems similar, they might be at-spi issues

[Sebastien Bacher (seb128)]

hum, those hit "Not enough memory to set up DBusConnection for use with GLib" errors, which is weird...

[Sebastien Bacher (seb128)]

several of those reports mention using the osk...

[Launchpad Janitor (janitor)]

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

[Rob Whyte (fudge)]

Please install at-spi2-core 2.10.2 from the accessibility-dev ppa. sudo apt-add-repository ppa:accessibility-dev/ppa and update/upgrade .

[Luke Yelavich (themuso)]

The upgrade as suggested by Rob may or may not help with this bug. I advise that once you upgrade, you keep a look out for further unity-greeter crashes. I am personally unable to reproduce this bug with the upgrade, although I had a hard time reproducing it even with the version of at-spi2-core in trusty proper, so further testing is welcome.

Thanks.

[Rob Whyte (fudge)]

Using 2.10.2 I have not had one crash, where as previously I was getting four or five crashes a week. Thank you

[Rob Whyte (fudge)]

This bug has reared its ugly head again

[jgfenix (jgfenix)]

I've been seeing this error since I came from Unity(Ubuntu 14.04) to Gnome. I solved this problem trying this steps:

$ sudo apt-get install lightdm-gtk-greeter
$ sudo apt-get update && sudo apt-get upgrade
$ sudo reboot

Then my entire login interface changed(the options of interfaces moved to top right), but not to worry, they still there.
And the bug is gone forever =]
At least when I use Gnome, my computer is not made for Unity, too slow...

*Sorry for my English, not native person ^^ *

[JerryLumpkins (jerry-lumpkins)]

Installing the lightdm-gtk-greeter suggested by jgfenix worked for me.
Thanks!

(15.04)