unity-panel-service crashed with SIGSEGV in gtk_label_set_text_with_mnemonic()

[Jeremy Bícha]

Binary package hint: unity

As of this week's updates, when I login to Ubuntu's Unity desktop, I cannot see the indicator applets. The upper right side of my screen is the same blank gray color as the middle. Nor does clicking on that side do any good.

However, I found out that I am able to use the keyboard to see the indicator menus. I use the File menu from another app (like Terminal) and just click the left or right arrow keys until I am able to see the system indicator menus. So I can get to the calendar but I'm still not seeing the clock for instance.

The indicators do show if I instead run the Ubuntu Classic Desktop, even with Compiz Desktop Effects working.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity 3.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic x86_64
Architecture: amd64
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: Off
 modes: 1280x800
 edid-base64: AP///////wAyDCABAAAAAAASAQOAIRV4ChRlmFlTiygjUFQAAAABAQEBAQEBAQEBAQEBAQEBEhsAiFAgEDAwGDYAS88QAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAA/gBMR1BoaWxpcHNMQ0QKAAAA/ABMUDE1NFdYNC1UTEM4AEg=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Wed Feb 2 11:25:51 2011
DistUpgraded: Yes, recently upgraded Log time: 2010-12-31 21:57:02.254048
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 virtualbox-ose, 4.0.2, 2.6.38-1-generic, x86_64: installed
 virtualbox-ose, 4.0.2, 2.6.37-12-generic, x86_64: installed
ExecutablePath: /usr/lib/unity/unity-panel-service
GraphicsCard:
 Subsystem: Toshiba America Info Systems Device [1179:ff66]
   Subsystem: Toshiba America Info Systems Device [1179:ff66]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: TOSHIBA Satellite L305
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
 SHELL=/bin/bash
 LC_MESSAGES=en_US.utf8
 PATH=(custom, user)
 LANGUAGE=en_US:en
 LANG=en_GB.utf8
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-1-generic root=UUID=f5f5a49b-02ef-43a4-a8c8-e436a4a08f21 ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
SegvAnalysis:
 Segfault happened at: 0x7fc109d3de3e <gtk_label_set_text_with_mnemonic+30>: cmp %rax,(%rdx)
 PC (0x7fc109d3de3e) ok
 source "%rax" ok
 destination "(%rdx)" (0x00656369) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 gtk_label_set_text_with_mnemonic () from /usr/lib/libgtk-x11-2.0.so.0
 g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/libgobject-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in gtk_label_set_text_with_mnemonic()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (nautilus:3812): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed
 (nm-applet:3828): Gtk-CRITICAL **: IA__gtk_widget_is_toplevel: assertion `GTK_IS_WIDGET (widget)' failed
 (nm-applet:3828): Gtk-CRITICAL **: IA__gtk_widget_is_toplevel: assertion `GTK_IS_WIDGET (widget)' failed
dmi.bios.date: 09/23/2009
dmi.bios.vendor: INSYDE
dmi.bios.version: 2.10
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvr2.10:bd09/23/2009:svnTOSHIBA:pnSatelliteL305:pvrPSLB8U-05202F:rvnTOSHIBA:rnPortablePC:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Satellite L305
dmi.product.version: PSLB8U-05202F
dmi.sys.vendor: TOSHIBA
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu5
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4

[Apport retracing service (apport)]

StacktraceTop:
 IA__gtk_label_set_text_with_mnemonic (
 g_closure_invoke (closure=0x7fc0fc194060,
 ?? ()

[Sebastien Bacher (seb128)]

Thanks for the bug report. This particular bug has already been reported, but feel free to report any other bugs you find.

[Jeremy Bícha (jbicha)]

Seb, the bug you linked to says it is related to Evolution but I just use webmail so I'm not sure if it's the same issue.

I cleared .gconf or .config/compiz-1 or something and now the indicators are working again. I've had to do that on multiple occasions after a unity update.