ubuntu-x-swat team mailing list archive

[Bryce Harrington <780961@xxxxxxxxxxxxxxxxxx>]

** Description changed:

  Binary package hint: xorg
  
  Ever since upgrading to natty a couple days ago, I've been having
  problems with Xorg crashing.  I got a traceback (already attached,
  gdmlog1), which suggested something related to pthreads, so I tried
  disabling hyperthreading and all but one core in BIOS.  This reduced the
  frequency of crashing from about once per 10 minutes to once per 2 days.
  I don't know if it's specific to the intel driver, or if it is a more
  general issue.
  
  As far as steps for reproducing the issue...  I'm not exactly sure.  This is a description of a typical session:
  1. Log in via gdm.  I'm using sawfish, with a custom Xsession.
  2. Start a few programs.  I ran xchat, chrome, midori, a few instances of dillo, and a few instances if urxvt (client/server mode, not independent instances).
  3. Trigger a few window redraws, by changing desktops or moving windows around.  I triggered these actions via key shortcuts, generally a few times in a fraction of a second.
  
  Result:  Once in a while, step 3 will cause an Xorg crash.  The
  frequency increases quite a bit with SMP enabled (2 cores + HT, so 4
  logical CPUs).
  
+ Backtrace:
+ [164690.319] 0: /usr/bin/X (xorg_backtrace+0x26) [0x4a2626]
+ [164690.319] 1: /usr/bin/X (0x400000+0x6219a) [0x46219a]
+ [164690.319] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f99ff2fe000+0xfc60) [0x7f99ff30dc60]
+ [164690.319] 3: /usr/bin/X (0x400000+0x3d7e5) [0x43d7e5]
+ [164690.319] 4: /usr/bin/X (ProcAllowEvents+0x14b) [0x43df1b]
+ [164690.319] 5: /usr/bin/X (0x400000+0x2e2a9) [0x42e2a9]
+ [164690.319] 6: /usr/bin/X (0x400000+0x21a7e) [0x421a7e]
+ [164690.319] 7: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xff) [0x7f99fe247eff]
+ [164690.319] 8: /usr/bin/X (0x400000+0x21629) [0x421629]
+ [164690.319] Segmentation fault at address 0x291
+ [164690.319] 
+ Caught signal 11 (Segmentation fault). Server aborting
+ 
  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xorg 1:7.6+4ubuntu3
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  DRM.card0.DP.1:
-  status: disconnected
-  enabled: disabled
-  dpms: Off
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: Off
+  modes:
+  edid-base64:
  DRM.card0.HDMI.A.1:
-  status: disconnected
-  enabled: disabled
-  dpms: Off
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: Off
+  modes:
+  edid-base64:
  DRM.card0.LVDS.1:
-  status: connected
-  enabled: enabled
-  dpms: On
-  modes: 1280x800 1280x800
-  edid-base64: AP///////wAwrhFAAAAAAAATAQOAGhB46lzVk1xejiccUFQAAAABAQEBAQEBAQEBAQEBAQEB7hoAgFAgEDAQMBMABaMQAAAZ0BcAxlAgGTAwIDYABaMQAAAZAAAADwCBCjyBCjIWCQBMo0FUAAAA/gBMVE4xMjFBVDA3TDAyADg=
+  status: connected
+  enabled: enabled
+  dpms: On
+  modes: 1280x800 1280x800
+  edid-base64: AP///////wAwrhFAAAAAAAATAQOAGhB46lzVk1xejiccUFQAAAABAQEBAQEBAQEBAQEBAQEB7hoAgFAgEDAQMBMABaMQAAAZ0BcAxlAgGTAwIDYABaMQAAAZAAAADwCBCjyBCjIWCQBMo0FUAAAA/gBMVE4xMjFBVDA3TDAyADg=
  DRM.card0.VGA.1:
-  status: disconnected
-  enabled: disabled
-  dpms: Off
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: Off
+  modes:
+  edid-base64:
  Date: Wed May 11 01:51:39 2011
  DistUpgraded: Log time: 2011-05-08 22:00:44.661710
  DistroCodename: natty
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  GraphicsCard:
-  Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
-    Subsystem: Lenovo Device [17aa:215a]
+  Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
+    Subsystem: Lenovo Device [17aa:215a]
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  MachineType: LENOVO 3249CTO
  ProcEnviron:
-  LANGUAGE=en_US:en
-  PATH=(custom, user)
-  LANG=C
-  SHELL=/bin/zsh
+  LANGUAGE=en_US:en
+  PATH=(custom, user)
+  LANG=C
+  SHELL=/bin/zsh
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic root=UUID=067abbb3-2b82-460b-8e84-083cc85dfa86 ro quiet splash vt.handoff=7
  Renderer: Unknown
  SourcePackage: xorg
  UpgradeStatus: Upgraded to natty on 2011-05-09 (1 days ago)
  dmi.bios.date: 12/17/2010
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6QET62WW (1.32 )
  dmi.board.name: 3249CTO
  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:bvr6QET62WW(1.32):bd12/17/2010:svnLENOVO:pn3249CTO:pvrThinkPadX201:rvnLENOVO:rn3249CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 3249CTO
  dmi.product.version: ThinkPad X201
  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

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which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/780961

Title:
  Natty Xorg crashes on Thinkpad X201 (i915 driver) when using keyboard-
  based window management