[natty] sporadic crashes with segmentation fault (intel GM45)

[Jae-hyeon Park]

Binary package hint: xorg

Xserver crashes after use of a few days, with a few suspend and resume cycles in between. I use the ubuntu kernel source 2.6.38-8.42 with the patch of tuxonice 3.2 applied. I don't know yet whether or not tuxonice has something to do with the crash. No error is found in /sys/kernel/debug/dri/0/i915_error_state. One of the log files transferred by ubuntu-bug has the backtrace. I did not have this problem before update to natty.

Maybe related to the above segfault, there was a problem of a hung GPU on a separate occasion. gdm log for this case is also attached. At this time, I did not examine /sys/kernel/debug/dri/0/i915_error_state. I am not sure if this hanging is related to bug #727594 since my chipset is newer than those that are known to cause lockups.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-tuxonice 2.6.38.2
Uname: Linux 2.6.38-8-tuxonice x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,move,imgsvg,cube,text,place,imgjpeg,expo,ring,regex,imgpng,resize,rotate,workarounds,snap,winrules,scale,resizeinfo]
CompositorRunning: compiz
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.DP.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.DP.3:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800
 edid-base64: AP///////wAwrhFAAAAAAC0SAQOAGhB46oXFlFdPiicgUFQAAAABAQEBAQEBAQEBAQEBAQEBwBsAq1AgEDA0QDMABaMQAAAZwBsAq1AgEDA0QDMABaMQAAAZAAAADwCBCjyBCjweAABMo1cxAAAA/gBMVE4xMjFBUDAzMDAxAOw=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Wed May 11 00:19:16 2011
DistUpgraded: Log time: 2011-04-28 15:05:36.451206
DistroCodename: natty
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:20e4]
   Subsystem: Lenovo Device [17aa:20e4]
MachineType: LENOVO 7448RU2
ProcEnviron:
 LANGUAGE=en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-tuxonice root=UUID=0cf944fe-a93a-44a3-8289-e9c4fdb6c6a8 ro crashkernel=384M-2G:64M,2G-:128M
Renderer: Unknown
SourcePackage: xorg
UpgradeStatus: Upgraded to natty on 2011-04-28 (12 days ago)
dmi.bios.date: 09/24/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7WET60WW (3.10 )
dmi.board.name: 7448RU2
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:bvr7WET60WW(3.10):bd09/24/2009:svnLENOVO:pn7448RU2:pvrThinkPadX200Tablet:rvnLENOVO:rn7448RU2:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7448RU2
dmi.product.version: ThinkPad X200 Tablet
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.ia32-libs: ia32-libs 20090808ubuntu13
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
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 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

[Jae-hyeon Park (jhyeon)]

Let me attach another log of segfault and the output of dmesg. It happened shortly after I changed the screen configuration between a single monitor setup and a dual monitor setup back and forth a few times using the xrandr command in a gnome-terminal. Again, there was no error in /sys/kernel/debug/dri/0/i915_error_state. Before this, the computer had been resumed from a tuxonice hibernation.

[Bryce Harrington (bryce)]

Hey jhyeon,

You filed this bug report against natty, but I see it's still open and
doesn't appear to have much activity recently. So, now that oneiric
is released and stable, this may be a good point for you to upgrade
and re-test if this issue is still present there.

If it's solved in the new release and you think it's worth backporting
the fix, please indicate that. Or if having the fix in the new release
is good enough, feel free to close out the bug (or let us know and we'll
close it.)

If it's not solved, leave the bug report open. I can't promise we'll
get to it (we get way more bugs filed than we can usually get to), but
your testing and feedback can help out if and when we do.

[bugbot (bugbot)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.