Segfault reported by compiz

[John Johansen]

Binary package hint: compiz

Compiz is segfaulting after doing apt-get update ; apt-get dist-upgrade on a previously working install

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: compiz 1:0.9.4+bzr20110407-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
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]
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1366x768 1366x768 1280x720 1152x768 1024x768 800x600 848x480 720x480 640x480
 edid-base64: AP///////wAwrtFAAAAAAAETAQOAGg546pmFlVVWkigiUFQAAAABAQEBAQEBAQEBAQEBAQEBjBlWJlAACDAYDiQAAJAQAAAYShVWJlAACDAYDiQAAJAQAAAYAAAADwCLCTKLCSgUCQAGr1YxAAAA/gBCMTE2WFcwMiBWMSAKAFM=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
Date: Sun Apr 10 19:21:43 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
GraphicsCard:
 ATI Technologies Inc Device [1002:9802] (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:21df]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
MachineType: LENOVO 0596CTO
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_CA:en
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=50c14067-e476-42e4-9925-700c14e173d9 ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Renderer: Unknown
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/09/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8FET26WW (1.10 )
dmi.board.asset.tag: Not Available
dmi.board.name: 0596CTO
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:bvr8FET26WW(1.10):bd03/09/2011:svnLENOVO:pn0596CTO:pvrThinkPadX120e:rvnLENOVO:rn0596CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 0596CTO
dmi.product.version: ThinkPad X120e
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4+bzr20110407-0ubuntu2
version.ia32-libs: ia32-libs 20090808ubuntu11
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu6

[John Johansen (jjohansen)]

Some more details

GDM succesfully launches and prompts for login as expected, the bug happens after login trying to bring up the desktop, which never successfully happens. Virtually consoles can be switched too, and used but the desktop never properly recovers (or even falls back to gdm) without killing it.

The gnome 2 desktop does start successfully, switching back to unity results in the same failure.

It occurrs on both the 2.6.38-7 and 2.6.38-8 kernels both of which were working with unity on Friday (8-4-2011).

[Bilal Akhtar (bilalakhtar)]

Thank you for your bug report, but unfortunately this bug report doesn't have enough information on how the crash happened.
Could you kindly open up a virtual terminal by pressing Ctrl+Alt+f2, login, then run: (You need to have gdb installed first)
DISPLAY=:0 unity --advanced-debug --log=/home/USERNAME/gdb.log
and then type this inside gdb:
run
(reproduce the crash here)
bt full
quit

And then kindly attach the gdb.log file in your home directory, to this bug. Thanks

[Walter Garcia-Fontes (walter-garcia)]

I have a bug 757387 which seems related to this one. Attaching gdb.log created with the instructions in #3 and unity.apport and compiz.apport for my machine.

[Bilal Akhtar (bilalakhtar)]

Thanks for the information. Triaging.

[Walter Garcia-Fontes (walter-garcia)]

With the updates received on April 15 I don't see this crash (working for two hours with no glitch so far).

[Omer Akram (om26er)]

Closing as you are not facing the issue but if you face it again please report the bug by double clicking the .crash file with the name 'compiz' in it which is generated in your /var/crash directory. Generally a dialog box appears to notify you of the crash without even the need of opening the .crash file by hand.

[Walter Garcia-Fontes (walter-garcia)]

Thanks Omer, hopefully it does not come back...