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[Bug 877680] Re: natty: x crashes with "Segmentation fault at address (nil)"

 

i've noticed that this is also 100% reproducible with kate - spotify
ain't the culprit.

also - compositing on/off (via the control center) makes no difference

** Description changed:

- Some combination of the latest versions of X, qt, and the spotify app
- make X crash on my machine every single time.
+ Some combination of the latest versions of X, qt, and kate (also other
+ QT apps such as spotify) make X crash on my machine every single time.
  
- 
- I login, start spotify, and about 15 seconds later X dies, and I see something like this in /var/log/Xorg.0.log.old:
+ I login, start kate, and about 15 seconds later X dies, and I see something like this in /var/log/Xorg.0.log.old:
  [ 63960.882] (II) XKB: reuse xkmfile /var/lib/xkb/server-A1E5704A3BB8F17A7D531B3608E3CD775FB15673.xkm
- [ 63996.035] 
+ [ 63996.035]
  Backtrace:
  [ 63996.035] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80f0feb]
  [ 63996.035] 1: /usr/bin/X (0x8048000+0x5df48) [0x80a5f48]
  [ 63996.035] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb777040c]
  [ 63996.035] 3: /usr/bin/X (ProcessWorkQueue+0x30) [0x8079920]
  [ 63996.035] 4: /usr/bin/X (WaitForSomething+0x60) [0x80a52b0]
  [ 63996.035] 5: /usr/bin/X (0x8048000+0x2885e) [0x807085e]
  [ 63996.035] 6: /usr/bin/X (0x8048000+0x1a81c) [0x806281c]
  [ 63996.035] 7: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xe7) [0xb7479e37]
  [ 63996.035] 8: /usr/bin/X (0x8048000+0x1a411) [0x8062411]
  [ 63996.035] Segmentation fault at address (nil)
- [ 63996.035] 
+ [ 63996.035]
  Caught signal 11 (Segmentation fault). Server aborting
- [ 63996.035] 
- Please consult the The X.Org Foundation support 
-          at http://wiki.x.org
-  for help. 
+ [ 63996.035]
+ Please consult the The X.Org Foundation support
+          at http://wiki.x.org
+  for help.
  [ 63996.035] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
  [ 63996.035]
  
  xserver-xorg:
-   Installed: 1:7.6+4ubuntu3.1
-   Candidate: 1:7.6+4ubuntu3.1
-   Version table:
-  *** 1:7.6+4ubuntu3.1 0
-         500 http://software.linux.ibm.com/pub/ubuntu-repository/ natty-updates/main i386 Packages
-         500 http://mirror.anl.gov/pub/ubuntu/ natty-updates/main i386 Packages
-         100 /var/lib/dpkg/status
-      1:7.6+4ubuntu3 0
-         500 http://software.linux.ibm.com/pub/ubuntu-repository/ natty/main i386 Packages
-         500 http://mirror.anl.gov/pub/ubuntu/ natty/main i386 Packages
+   Installed: 1:7.6+4ubuntu3.1
+   Candidate: 1:7.6+4ubuntu3.1
+   Version table:
+  *** 1:7.6+4ubuntu3.1 0
+         500 http://software.linux.ibm.com/pub/ubuntu-repository/ natty-updates/main i386 Packages
+         500 http://mirror.anl.gov/pub/ubuntu/ natty-updates/main i386 Packages
+         100 /var/lib/dpkg/status
+      1:7.6+4ubuntu3 0
+         500 http://software.linux.ibm.com/pub/ubuntu-repository/ natty/main i386 Packages
+         500 http://mirror.anl.gov/pub/ubuntu/ natty/main i386 Packages
  libqt4-core:
-   Installed: 4:4.7.2-0ubuntu6.3
-   Candidate: 4:4.7.2-0ubuntu6.3
-   Version table:
-  *** 4:4.7.2-0ubuntu6.3 0
-         500 http://software.linux.ibm.com/pub/ubuntu-repository/ natty-updates/universe i386 Packages
-         500 http://mirror.anl.gov/pub/ubuntu/ natty-updates/universe i386 Packages
-         500 http://mirror.anl.gov/pub/ubuntu/ natty-security/universe i386 Packages
-         100 /var/lib/dpkg/status
-      4:4.7.2-0ubuntu6 0
-         500 http://software.linux.ibm.com/pub/ubuntu-repository/ natty/universe i386 Packages
-         500 http://mirror.anl.gov/pub/ubuntu/ natty/universe i386 Packages
+   Installed: 4:4.7.2-0ubuntu6.3
+   Candidate: 4:4.7.2-0ubuntu6.3
+   Version table:
+  *** 4:4.7.2-0ubuntu6.3 0
+         500 http://software.linux.ibm.com/pub/ubuntu-repository/ natty-updates/universe i386 Packages
+         500 http://mirror.anl.gov/pub/ubuntu/ natty-updates/universe i386 Packages
+         500 http://mirror.anl.gov/pub/ubuntu/ natty-security/universe i386 Packages
+         100 /var/lib/dpkg/status
+      4:4.7.2-0ubuntu6 0
+         500 http://software.linux.ibm.com/pub/ubuntu-repository/ natty/universe i386 Packages
+         500 http://mirror.anl.gov/pub/ubuntu/ natty/universe i386 Packages
  spotify-client-qt:
-   Installed: 1:0.6.2.291.gcccc1f5.116-1
-   Candidate: 1:0.6.2.291.gcccc1f5.116-1
-   Version table:
-  *** 1:0.6.2.291.gcccc1f5.116-1 0
-         500 http://repository.spotify.com/ stable/non-free i386 Packages
-         100 /var/lib/dpkg/status
+   Installed: 1:0.6.2.291.gcccc1f5.116-1
+   Candidate: 1:0.6.2.291.gcccc1f5.116-1
+   Version table:
+  *** 1:0.6.2.291.gcccc1f5.116-1 0
+         500 http://repository.spotify.com/ stable/non-free i386 Packages
+         100 /var/lib/dpkg/status
  
  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xserver-xorg 1:7.6+4ubuntu3.1
  ProcVersionSignature: Ubuntu 2.6.38-11.50-generic-pae 2.6.38.8
  Uname: Linux 2.6.38-11-generic-pae i686
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
-  NVRM version: NVIDIA UNIX x86 Kernel Module  270.41.06  Mon Apr 18 14:54:25 PDT 2011
-  GCC version:  gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)
+  NVRM version: NVIDIA UNIX x86 Kernel Module  270.41.06  Mon Apr 18 14:54:25 PDT 2011
+  GCC version:  gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)
  Architecture: i386
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: kwin
  Date: Tue Oct 18 14:15:18 2011
  DistUpgraded: Log time: 2009-10-29 13:16:57.671700
  DistroCodename: natty
  DistroVariant: kubuntu
  DkmsStatus: nvidia-current, 270.41.06, 2.6.38-11-generic-pae, i686: installed
  EcryptfsInUse: Yes
  GraphicsCard:
-  nVidia Corporation G84M [Quadro FX 570M] [10de:040c] (rev a1) (prog-if 00 [VGA controller])
-    Subsystem: Lenovo ThinkPad T61p [17aa:20d9]
+  nVidia Corporation G84M [Quadro FX 570M] [10de:040c] (rev a1) (prog-if 00 [VGA controller])
+    Subsystem: Lenovo ThinkPad T61p [17aa:20d9]
  JockeyStatus:
-  ERROR:root:Could not find any typelib for AppIndicator
-  kmod:nvidia_173 - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use)
-  kmod:nvidia_current - nvidia_current (Proprietary, Enabled, Not in use)
+  ERROR:root:Could not find any typelib for AppIndicator
+  kmod:nvidia_173 - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use)
+  kmod:nvidia_current - nvidia_current (Proprietary, Enabled, Not in use)
  MachineType: LENOVO 6457C34
  PccardctlIdent:
-  Socket 0:
-    product info: "SanDisk", "SDP", "5/3 0.6", ""
-    manfid: 0x0045, 0x0401
-    function: 4 (fixed disk)
+  Socket 0:
+    product info: "SanDisk", "SDP", "5/3 0.6", ""
+    manfid: 0x0045, 0x0401
+    function: 4 (fixed disk)
  PccardctlStatus:
-  Socket 0:
-    3.3V 16-bit PC Card
-    Subdevice 0 (function 0) bound to driver "pata_pcmcia"
+  Socket 0:
+    3.3V 16-bit PC Card
+    Subdevice 0 (function 0) bound to driver "pata_pcmcia"
  ProcEnviron:
-  SHELL=/bin/bash
-  PATH=(custom, user)
-  LANG=en_US.UTF-8
+  SHELL=/bin/bash
+  PATH=(custom, user)
+  LANG=en_US.UTF-8
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic-pae root=UUID=9c5a0c4f-f5cf-49fe-bee1-3318e2f265d2 ro noquiet nosplash max_loop=64 crashkernel=384M-2G:64M,2G-:128M nosplash noquiet
  Renderer: Unknown
  SourcePackage: xorg
  UpgradeStatus: Upgraded to natty on 2009-10-29 (719 days ago)
  dmi.bios.date: 06/03/2008
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7LETB8WW (2.18 )
  dmi.board.name: 6457C34
  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:bvr7LETB8WW(2.18):bd06/03/2008:svnLENOVO:pn6457C34:pvrThinkPadT61p:rvnLENOVO:rn6457C34:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 6457C34
  dmi.product.version: ThinkPad T61p
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  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.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

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https://bugs.launchpad.net/bugs/877680

Title:
  natty: x crashes with "Segmentation fault at address (nil)"

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References