compiz team mailing list archive

[Timo Jyrinki <timo.jyrinki@xxxxxxxxxxxxx>]

The fix is now testable at https://launchpad.net/~unity-
team/+archive/sru (ppa:unity-team/sru). Actual verification action will
be required when the new SRU hits precise-proposed.

** Description changed:

- Ubuntu 12.04 beta1 
+ [Impact]
+ 
+ A frequent crasher.
+ 
+ [Test Case]
+ 
+ Ensure no crashes happen with the same stack trace, but there is no one
+ clear test case.
+ 
+ [Regression Potential]
+ 
+ Low, the commit is a simple NULL check to prevent a crash and show a
+ warning in log instead.
+ 
+ --- original bug report ---
+ 
+ Ubuntu 12.04 beta1
  unity  5.4.0-0ubuntu2
  compiz 1:0.9.7.0~bzr2995-0ubuntu5
  compiz crashes frequently after boot into system.
  
  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: compiz-core 1:0.9.7.0~bzr2995-0ubuntu5
  ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
  Uname: Linux 3.2.0-17-generic x86_64
  NonfreeKernelModules: nvidia wl
  .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_64 Kernel Module  295.20  Mon Feb  6 21:07:30 PST 2012
-  GCC version:  gcc version 4.6.2 (Ubuntu/Linaro 4.6.2-16ubuntu1)
+  NVRM version: NVIDIA UNIX x86_64 Kernel Module  295.20  Mon Feb  6 21:07:30 PST 2012
+  GCC version:  gcc version 4.6.2 (Ubuntu/Linaro 4.6.2-16ubuntu1)
  .tmp.unity.support.test.0:
-  
+ 
  ApportVersion: 1.93-0ubuntu2
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,regex,gnomecompat,mousepoll,resize,imgpng,place,session,snap,move,grid,vpswitch,unitymtgrabhandles,wall,animation,expo,fade,workarounds,ezoom,scale,unityshell]
  CompositorRunning: compiz
  CurrentDmesg:
-  [   44.441706] type=1400 audit(1330680576.805:24): apparmor="DENIED" operation="open" parent=2141 profile="/usr/lib/telepathy/mission-control-5" name="/usr/share/gvfs/remote-volume-monitors/" pid=2142 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
-  [   50.880026] eth2: no IPv6 routers present
+  [   44.441706] type=1400 audit(1330680576.805:24): apparmor="DENIED" operation="open" parent=2141 profile="/usr/lib/telepathy/mission-control-5" name="/usr/share/gvfs/remote-volume-monitors/" pid=2142 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
+  [   50.880026] eth2: no IPv6 routers present
  Date: Fri Mar  2 17:27:29 2012
  DistUpgraded: Log time: 2012-03-02 14:48:08.811970
  DistroCodename: precise
  DistroVariant: ubuntu
  DkmsStatus:
-  bcmwl, 5.100.82.38+bdcom, 3.2.0-17-generic, x86_64: installed
-  nvidia-current, 295.20, 3.2.0-17-generic, x86_64: installed
+  bcmwl, 5.100.82.38+bdcom, 3.2.0-17-generic, x86_64: installed
+  nvidia-current, 295.20, 3.2.0-17-generic, x86_64: installed
  ExecutablePath: /usr/bin/compiz
  GraphicsCard:
-  NVIDIA Corporation C79 [GeForce 9400M] [10de:0863] (rev b1) (prog-if 00 [VGA controller])
-    Subsystem: Apple Inc. Device [106b:00b9]
+  NVIDIA Corporation C79 [GeForce 9400M] [10de:0863] (rev b1) (prog-if 00 [VGA controller])
+    Subsystem: Apple Inc. Device [106b:00b9]
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
  JockeyStatus:
-  kmod:wl - Broadcom STA wireless driver (Proprietary, Enabled, In use) [auto-install]
-  xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
-  xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
+  kmod:wl - Broadcom STA wireless driver (Proprietary, Enabled, In use) [auto-install]
+  xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
+  xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
  MachineType: Apple Inc. MacBookPro5,5
  ProcCmdline: Compiz
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-17-generic root=UUID=7b317aa3-857b-4076-888b-7d3602de212a ro quiet splash vt.handoff=7
  SegvAnalysis:
-  Segfault happened at: 0x7f56f26a6d74:	movzbl (%rdi),%eax
-  PC (0x7f56f26a6d74) ok
-  source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
-  destination "%eax" ok
+  Segfault happened at: 0x7f56f26a6d74:	movzbl (%rdi),%eax
+  PC (0x7f56f26a6d74) ok
+  source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
+  destination "%eax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: compiz
  StacktraceTop:
-  ?? () from /lib/x86_64-linux-gnu/libc.so.6
-  GLScreen::GLScreen(CompScreen*) () from /usr/lib/compiz/libopengl.so
-  PluginClassHandler<GLScreen, CompScreen, 4>::get(CompScreen*) () from /usr/lib/compiz/libopengl.so
-  CompPlugin::VTableForScreenAndWindow<GLScreen, GLWindow>::initScreen(CompScreen*) () from /usr/lib/compiz/libopengl.so
-  CompManager::initPlugin(CompPlugin*) () from /usr/lib/libcompiz_core.so.ABI-20120216
+  ?? () from /lib/x86_64-linux-gnu/libc.so.6
+  GLScreen::GLScreen(CompScreen*) () from /usr/lib/compiz/libopengl.so
+  PluginClassHandler<GLScreen, CompScreen, 4>::get(CompScreen*) () from /usr/lib/compiz/libopengl.so
+  CompPlugin::VTableForScreenAndWindow<GLScreen, GLWindow>::initScreen(CompScreen*) () from /usr/lib/compiz/libopengl.so
+  CompManager::initPlugin(CompPlugin*) () from /usr/lib/libcompiz_core.so.ABI-20120216
  Title: compiz crashed with SIGSEGV in GLScreen::GLScreen()
  UpgradeStatus: Upgraded to precise on 2012-03-02 (0 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 06/15/09
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP55.88Z.00AC.B03.0906151708
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-F2268AC8
  dmi.board.vendor: Apple Inc.
  dmi.chassis.asset.tag: Asset Tag#
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-F2268AC8
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP55.88Z.00AC.B03.0906151708:bd06/15/09:svnAppleInc.:pnMacBookPro5,5:pvr1.0:rvnAppleInc.:rnMac-F2268AC8:rvr:cvnAppleInc.:ct10:cvrMac-F2268AC8:
  dmi.product.name: MacBookPro5,5
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.
  version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu5
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.30-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

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https://bugs.launchpad.net/bugs/944653

Title:
  compiz crashed on startup with SIGSEGV in strstr() from
  GLScreen::GLScreen()

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