X.org crashes (Segmentation fault)

[Ve2dmn]

X.org crashed once every 2 day (on average). Xorg.log looks like this:

[ 1069.654]
Backtrace:
[ 1069.654] 0: /usr/bin/X (xorg_backtrace+0x26) [0x460566]
[ 1069.654] 1: /usr/bin/X (0x400000+0x64b7a) [0x464b7a]
[ 1069.654] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f2eb76ba000+0x10060) [0x7f2eb76ca060]
[ 1069.654] 3: /usr/lib/xorg/modules/extensions/librecord.so (0x7f2eb5067000+0x26a8) [0x7f2eb50696a8]
[ 1069.654] 4: /usr/bin/X (_CallCallbacks+0x34) [0x434264]
[ 1069.654] 5: /usr/bin/X (WriteToClient+0x21a) [0x4635aa]
[ 1069.654] 6: /usr/lib/xorg/modules/extensions/libdri2.so (ProcDRI2WaitMSCReply+0x52) [0x7f2eb4a4ec62]
[ 1069.654] 7: /usr/lib/xorg/modules/extensions/libdri2.so (DRI2WaitMSCComplete+0x53) [0x7f2eb4a4d3a3]
[ 1069.654] 8: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f2eb47fa000+0x25fd4) [0x7f2eb481ffd4]
[ 1069.654] 9: /usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmHandleEvent+0xa3) [0x7f2eb4c583c3]
[ 1069.655] 10: /usr/bin/X (WakeupHandler+0x5b) [0x433a6b]
[ 1069.655] 11: /usr/bin/X (WaitForSomething+0x1b6) [0x45e016]
[ 1069.655] 12: /usr/bin/X (0x400000+0x2f912) [0x42f912]
[ 1069.655] 13: /usr/bin/X (0x400000+0x232fe) [0x4232fe]
[ 1069.655] 14: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f2eb65f630d]
[ 1069.655] 15: /usr/bin/X (0x400000+0x235ed) [0x4235ed]
[ 1069.655] Segmentation fault at address 0x7f2eb2a77010
[ 1069.655]
Caught signal 11 (Segmentation fault). Server aborting
[ 1069.655]

No discerning partern is observed (doesn't seems to be related to a specific action from the user)

This is an integrated Intel graphics card from a Dell Latitude E6420:

Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
 Kernel driver in use: i915
 Kernel modules: i915

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1
ProcVersionSignature: Ubuntu 3.0.0-15.25-generic 3.0.13
Uname: Linux 3.0.0-15-generic x86_64
NonfreeKernelModules: wl
.tmp.unity.support.test.0:

ApportVersion: 1.23-0ubuntu4
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,snap,imgpng,regex,vpswitch,animation,mousepoll,gnomecompat,resize,grid,move,place,unitymtgrabhandles,expo,ezoom,wall,session,workarounds,fade,scale,unityshell]
CompositorRunning: compiz
Date: Mon Jan 23 09:50:49 2012
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 5.100.82.38+bdcom, 3.0.0-12-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 3.0.0-14-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 3.0.0-15-generic, x86_64: installed
 virtualbox, 4.1.2, 3.0.0-14-generic, x86_64: installed
 virtualbox, 4.1.2, 3.0.0-15-generic, x86_64: installed
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0493]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: Dell Inc. Latitude E6420
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-15-generic root=UUID=00aa71cf-4039-4621-ad56-6e2144d2bbe8 ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/15/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0K0DNP
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd09/15/2011:svnDellInc.:pnLatitudeE6420:pvr01:rvnDellInc.:rn0K0DNP:rvrA01:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6420
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

[Ve2dmn (david-montminy)]

Additional Xorg.log

[Ve2dmn (david-montminy)]

Additionnal X.org (Jan 16 10:06)

[Ve2dmn (david-montminy)]

Additionnal X.org (Jan 18 9:05)

[Ve2dmn (david-montminy)]

Additionnal X.org (Jan 16 second log)

[Ve2dmn (david-montminy)]

Additionnal X.org (Jan 18 second log)

[Ve2dmn (david-montminy)]

Note: This affect more than 1 laptop of the same model

[Ve2dmn (david-montminy)]

Another Xorg.log from Yesterday (Jan24)

[Launchpad Janitor (janitor)]

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

[cbourbou (cbourbou)]

If its any help, my Xorg.log with

[ 51.534] Segmentation fault at address 0x7fb4cb26b010
[ 51.534] Caught signal 11 (Segmentation fault). Server aborting

Running on a Dell Latitude 6420 with Intel graphic card, too.

[Ve2dmn (david-montminy)]

The last time it was an issue was on 2012-03-27 (see previous post).

I don't have my E6420 anymore, so I can't test any changes or updates. (Gave it back to my employer for my old E6410.)

This is still an issue for my coworkers.

[cbourbou (cbourbou)]

Today it's pretty bad, 3 session crashes in around 30 minutes, can happen while working with any application (today: Thunderbird, Nautilus, once even while logging in).

I have a feeling that this happens with external LCD attached - can't remember it happening while working with the 'on board' LCD only while on the road. But this is not conclusive, I do work around 80% with external LCD.

General question: Does it make sense for me to add more Xorg logs? Does it help to pinpoint the problem?

Cheers, Tino

[cbourbou (cbourbou)]

Yet another crash - this time with 'internal LCD only' (no external LCD connected).

This bug is extremely annoying....by luck it didn't happen during a presentation yet, but it gives me a very uneasy feeling during customer meetings, any time the session can blow up upon a mouse-click.....
Any chance it can be solved?

Cheers, Tino

[cbourbou (cbourbou)]

Upgraded to 12.04. Working a full day without any crashes.
Will observe this week, and if no further crashes occur, then we can conclude that the problem was solved by the upgrade.
Will only come back if problem reoccurs....

Cheers, Tino