Clicking volume control indicator caused this.
Exact step was:
1. Click on volume indicator
2. attempt to raise volume
3. watch volume go from 0% to 100% (no stopping)
4. system hang for approx 30 seconds.
5. recover and crash
ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-services 4.2.0-0ubuntu4
ProcVersionSignature: Ubuntu 3.0.0-5.6-generic-pae 3.0.0-rc7
Uname: Linux 3.0.0-5-generic-pae i686
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
CrashCounter: 1
Date: Sat Jul 16 15:45:59 2011
DistUpgraded: Log time: 2011-06-15 08:28:12.994726
DistroCodename: oneiric
DistroVariant: ubuntu
ExecutablePath: /usr/lib/unity/unity-panel-service
GraphicsCard:
nVidia Corporation G84M [Quadro FX 570M] [10de:040c] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Lenovo ThinkPad T61p [17aa:20d9]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: LENOVO 646067U
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcEnviron:
SHELL=/bin/bash
LANGUAGE=en_AU:en
LANG=en_AU.UTF-8
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-5-generic-pae root=UUID=a2df561a-fffa-439f-9910-22efa03470da ro quiet splash vt.handoff=7
Renderer: Unknown
SegvAnalysis:
Segfault happened at: 0xb712152f <g_type_check_instance_cast+15>: call 0xb70f5c67
PC (0xb712152f) ok
source "0xb70f5c67" (0xb70f5c67) ok
destination "(%esp)" (0xbf212000) not located in a known VMA region (needed writable region)!
Stack memory exhausted (SP below stack segment)
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
g_type_check_instance_cast () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
?? () from /usr/lib/libgtk-3.so.0
gtk_container_forall () from /usr/lib/libgtk-3.so.0
?? () from /usr/lib/libgtk-3.so.0
?? () from /usr/lib/libgtk-3.so.0
Title: unity-panel-service crashed with SIGSEGV in g_type_check_instance_cast()
UpgradeStatus: Upgraded to oneiric on 2011-06-14 (31 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 05/11/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7LETC6WW (2.26 )
dmi.board.name: 646067U
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7LETC6WW(2.26):bd05/11/2009:svnLENOVO:pn646067U:pvrThinkPadT61p:rvnLENOVO:rn646067U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 646067U
dmi.product.version: ThinkPad T61p
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4+bzr20110606-0ubuntu6
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11~1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental 7.11~1-0ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11~1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.2-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.0-3ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1
StacktraceTop: check_instance_ cast (type_instance= 0x92870d8, iface_type= 153927760) at /build/ buildd/ glib2.0- 2.29.10/ ./gobject/ gtype.c: 3977 menu_item_ forall (container= 0x92870d8, include_ internals= 1, callback=0xb74b0c30 <gtk_grab_ notify_ foreach> , callback_ data=0xbf212274 ) at /build/ buildd/ gtk+3.0- 3.1.8/. /gtk/gtkimageme nuitem. c:634 forall (container= 0x92870d8, callback=0xb74b0c30 <gtk_grab_ notify_ foreach> , callback_ data=0xbf212274 ) at /build/ buildd/ gtk+3.0- 3.1.8/. /gtk/gtkcontain er.c:2031 notify_ foreach (child=0x92870d8, data=0xbf212274) at /build/ buildd/ gtk+3.0- 3.1.8/. /gtk/gtkmain. c:2099 shell_forall (container= 0x92cb088, include_ internals= 1, callback=0xb74b0c30 <gtk_grab_ notify_ foreach> , callback_ data=0xbf212274 ) at /build/ buildd/ gtk+3.0- 3.1.8/. /gtk/gtkmenushe ll.c:1248
g_type_
gtk_image_
gtk_container_
gtk_grab_
gtk_menu_