unity_support_t: segfault error in libdrm_nouveau.so.1.0

[Pasi Tarhonen]

unity_support_t shows segfault in dmesg during login to unity-2d session:

[ti heinä 24 16:56:28 2012] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on vga encoder (output 0)
[ti heinä 24 16:56:28 2012] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on TV encoder (output 1)
[ti heinä 24 16:56:28 2012] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on vga encoder (output 0)
[ti heinä 24 16:56:28 2012] [drm] nouveau 0000:01:00.0: Output VGA-1 is running on CRTC 0 using output A
[ti heinä 24 16:56:29 2012] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on TV encoder (output 1)
[ti heinä 24 16:56:29 2012] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on TV encoder (output 1)
[ti heinä 24 16:56:31 2012] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on vga encoder (output 0)
[ti heinä 24 16:56:31 2012] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on TV encoder (output 1)
[ti heinä 24 16:56:31 2012] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on vga encoder (output 0)
[ti heinä 24 16:56:31 2012] [drm] nouveau 0000:01:00.0: Output VGA-1 is running on CRTC 0 using output A
[ti heinä 24 16:56:31 2012] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on TV encoder (output 1)
[ti heinä 24 16:56:41 2012] unity_support_t[15035]: segfault at 2c ip 008395fe sp bf9ef590 error 4 in libdrm_nouveau.so.1.0.0[836000+5000]

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic-pae 3.2.21
Uname: Linux 3.2.0-27-generic-pae i686
.tmp.unity.support.test.1:

ApportVersion: 2.0.1-0ubuntu11
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,move,gnomecompat,grid,regex,vpswitch,commands,resize,place,mousepoll,thumbnail,session,animation,wall,wobbly,workarounds,expo,ezoom,staticswitcher,fade,scale,unityshell]
CompositorRunning: None
Date: Tue Jul 24 17:01:16 2012
DistUpgraded: 2012-07-07 20:09:36,310 DEBUG enabling apt cron job
DistroCodename: precise
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 NVIDIA Corporation NV11 [GeForce2 MX/MX 400] [10de:0110] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. AGP-V7100 Pro [1043:4015]
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
MachineType: Hewlett-Packard HP Vectra
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-27-generic-pae root=UUID=81d95253-df01-40c2-b006-3a74d4d4a245 ro nopat quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to precise on 2012-07-07 (16 days ago)
dmi.bios.date: 07/19/2001
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: JA.01.07US
dmi.board.name: HP System Board
dmi.board.vendor: Hewlett-Packard
dmi.board.version: A06
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Version 1.00
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrJA.01.07US:bd07/19/2001:svnHewlett-Packard:pnHPVectra:pvrVL420:rvnHewlett-Packard:rnHPSystemBoard:rvrA06:cvnHewlett-Packard:ct3:cvrVersion1.00:
dmi.product.name: HP Vectra
dmi.product.version: VL420
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.7.8-0ubuntu1.2
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental 8.0.2-0ubuntu3.1
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3.1
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Launchpad Janitor (janitor)]

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

[Timo Aaltonen (tjaalton)]

kernel bug which probably is fixed by now, closing