** Also affects: unity (Ubuntu Xenial)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1290056

Title:
  [ati]compiz crashed with SIGSEGV in
  nux::GraphicsEngine::QRP_GLSL_GetBlurTexture()

Status in unity package in Ubuntu:
  In Progress
Status in unity source package in Xenial:
  New

Bug description:
  [ Impact ]

  Unity ramdomly crashes when hovering a tooltip or opening a quicklist

  [ Test case ]

  1. Hover a launcher icon
  2. Open a quicklist or wait for the tooltips
  3. Unity should never crash during such operation

  [ Possible regression ]

  The view might be opened without blurring background, but still better
  than crashing.

  ----------

  no further info available.

  ProblemType: CrashDistroRelease: Ubuntu 14.04
  Package: unity 7.1.2+14.04.20140305-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
  Uname: Linux 3.13.0-16-generic x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sun Mar  9 17:35:59 2014
  ExecutablePath: /usr/bin/compiz
  InstallationDate: Installed on 2014-03-09 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140308)
  ProcCmdline: compiz
  SegvAnalysis:
   Segfault happened at: 0x7f0e5abf2cdf 
<_ZN3nux14GraphicsEngine23QRP_GLSL_GetBlurTextureEiiiiNS_9ObjectPtrINS_18IOpenGLBaseTextureEEERNS_13TexCoordXFormERKNS_5color5ColorEfi+63>:
     mov    0x88(%rcx),%edx
   PC (0x7f0e5abf2cdf) ok
   source "0x88(%rcx)" (0x00000088) not located in a known VMA region (needed 
readable region)!
   destination "%edx" ok
  SegvReason: reading NULL VMA
  Signal: 11SourcePackage: unity
  StacktraceTop:
   nux::GraphicsEngine::QRP_GLSL_GetBlurTexture(int, int, int, int, 
nux::ObjectPtr<nux::IOpenGLBaseTexture>, nux::TexCoordXForm&, nux::color::Color 
const&, float, int) () from /usr/lib/x86_64-linux-gnu/libnux-graphics-4.0.so.0
   nux::GraphicsEngine::QRP_GetBlurTexture(int, int, int, int, 
nux::ObjectPtr<nux::IOpenGLBaseTexture>, nux::TexCoordXForm&, nux::color::Color 
const&, float, int) () from /usr/lib/x86_64-linux-gnu/libnux-graphics-4.0.so.0
   unity::CairoBaseWindow::Draw(nux::GraphicsEngine&, bool) () from 
/usr/lib/compiz/libunityshell.so
   unity::Tooltip::Draw(nux::GraphicsEngine&, bool) () from 
/usr/lib/compiz/libunityshell.so
   nux::View::ProcessDraw(nux::GraphicsEngine&, bool) () from 
/usr/lib/x86_64-linux-gnu/libnux-4.0.so.0
  Title: compiz crashed with SIGSEGV in 
nux::GraphicsEngine::QRP_GLSL_GetBlurTexture()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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