unity-panel-service crashed with SIGABRT

[dato]

crash window poped up after i loged in

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity-services 7.1.0+13.10.20130920-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1
Uname: Linux 3.11.0-8-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.12.4-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Sun Sep 22 17:15:05 2013
Disassembly: => 0x7f666b047f77: Cannot access memory at address 0x7f666b047f77
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
ExecutablePath: /usr/lib/unity/unity-panel-service
ExecutableTimestamp: 1379678360
GraphicsCard:
 Subsystem: ASRock Incorporation Motherboard [1849:0162]
 NVIDIA Corporation GF104 [GeForce GTX 460] [10de:0e22] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. N460GTX Cyclone 1GD5/OC [1462:2322]
InstallationDate: Installed on 2013-09-22 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130922)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
MarkForUpload: True
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcCwd: /home/dato
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-8-generic root=UUID=10d72f83-2184-4257-9d06-889b3e8a5011 ro quiet splash vt.handoff=7
Signal: 6
SourcePackage: unity
Stacktrace:
 #0 0x00007f666b047f77 in ?? ()
 No symbol table info available.
 Cannot access memory at address 0x7fff4ac49768
StacktraceTop: ?? ()
Title: unity-panel-service crashed with SIGABRT
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 11/28/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.70
dmi.board.name: Z77 Extreme4
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.70:bd11/28/2012:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ77Extreme4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
version.compiz: compiz 1:0.9.10+13.10.20130920-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.46-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu6
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Sun Sep 22 17:15:11 2013
xserver.configfile: default
xserver.errors:
 Failed to load module "nvidia" (module does not exist, 0)
 Failed to load module "nvidia" (module does not exist, 0)
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.14.2.901-2ubuntu4
xserver.video_driver: nouveau

[Apport retracing service (apport)]

Stacktrace:
 #0 0x00007f666b047f77 in ?? ()
 No symbol table info available.
 Cannot access memory at address 0x7fff4ac49768
StacktraceSource: #0 0x00007f666b047f77 in ?? ()
StacktraceTop: ?? ()

[Stephen M. Webb (bregma)]

From upstart.unity-panel-service.log.txt:

(unity-panel-service:26691): Indicator-Appmenu-CRITICAL **: OMG! Unable to get a connection to DBus
g_dbus_connection_real_closed: Remote peer vanished with error: Error receiving message: Connection reset by peer (g-io-error-quark, 0). Exiting.

So, the indicator-appmenu plugin by policy takes down then entire unity-panel-service daemon when its connection to DBus gets lost. This seems like remarkably incorrect behaviour for a plugin. The very least it should do is invoke a graceful shut down of the daemon.

This likely occurs as a result of a race condition on session shutdown (Dbus is shut down before unity-panel-service). It's (mostly) harmless noise but causes crash reports and overall perception of poor fit and finish.

[Stephen M. Webb (bregma)]

This perhaps could be worked around in the common case by forcing the shutdown order of the DBus daemon and the unity-panel-sevrice daemon .

[Will Cooke (willcooke)]

As part of the big bug clear up for 16.04 LTS I am marking this bug as Wont Fix. These types of crasher are better handled by errors.ubutnu.com which can collate similar crash reports to help us identify persitent bugs rather than one-off crashes. Sorry we are not able to help with this specific issue. If you are still experiencing this crash, please re-open the bug and add the tag “desktop-bugscrub-reopen”. See https://wiki.ubuntu.com/BigDesktopBugScrub for more information.