** Description changed:

  When i load pages from internet the system exit from graphical mode for
  few seconds and close all applications
  
  #7  OsSigHandler (signo=11, sip=<optimized out>, unused=<optimized out>) at 
../../os/osinit.c:107
  #8  <signal handler called>
  #9  0x0000000000000000 in ?? ()
  #10 0x00007f09da85a050 in DoMakeCurrent (cl=0x7f09dedb8b10, drawId=0, 
readId=<optimized out>, contextId=<optimized out>, tag=<optimized out>) at 
../../glx/glxcmds.c:627
-         client = 0x7f09dedb89f0
-         reply = {type = 176 '\260', unused = 16 '\020', sequenceNumber = 
56957, length = 32521, contextTag = 3732735488, pad2 = 32521, pad3 = 
3725079752, pad4 = 32521, pad5 = 3721045252, pad6 = 32521}
-         glxc = 0x0
-         drawPriv = 0x0
-         readPriv = 0x0
-         __PRETTY_FUNCTION__ = "DoMakeCurrent"
+         client = 0x7f09dedb89f0
+         reply = {type = 176 '\260', unused = 16 '\020', sequenceNumber = 
56957, length = 32521, contextTag = 3732735488, pad2 = 32521, pad3 = 
3725079752, pad4 = 32521, pad5 = 3721045252, pad6 = 32521}
+         glxc = 0x0
+         drawPriv = 0x0
+         readPriv = 0x0
+         __PRETTY_FUNCTION__ = "DoMakeCurrent"
  #11 0x00007f09da85e403 in __glXDispatch (client=<optimized out>) at 
../../glx/glxext.c:581
-         rendering = 0 '\000'
-         stuff = 0x7f09dedb5c80
-         opcode = 26 '\032'
-         cl = 0x7f09dedb8b10
+         rendering = 0 '\000'
+         stuff = 0x7f09dedb5c80
+         opcode = 26 '\032'
+         cl = 0x7f09dedb8b10
+ 
+ /*
+  ** Make the previous context not current.
+  */
+ if (!(*prevglxc->loseCurrent) (prevglxc)) {  /* Line 627 */
+     return __glXError(GLXBadContext);
+ }
  
  
  ProblemType: Crash
  DistroRelease: Ubuntu 13.04
  Package: xserver-xorg-core 2:1.13.3-0ubuntu4
  ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4
  Uname: Linux 3.8.0-15-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.9.2-0ubuntu5
  Architecture: amd64
  CrashCounter: 1
  Date: Sun Mar 31 12:28:23 2013
  ExecutablePath: /usr/bin/Xorg
  InstallationDate: Installed on 2013-03-20 (10 days ago)
  InstallationMedia: Lubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130311.1)
  MarkForUpload: True
  ProcCmdline: /usr/bin/X :0 -core -auth /var/run/lightdm/root/:0 -nolisten tcp 
vt7 -novtswitch -background none
  ProcEnviron:
  
  Signal: 6
  SourcePackage: xorg-server
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

** Changed in: xorg-server (Ubuntu)
       Status: New => Triaged

** Changed in: xorg-server (Ubuntu)
   Importance: Medium => High

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1162564

Title:
  Xorg crashed with SIGSEGV in DoMakeCurrent() when chrome loading
  images

Status in “xorg-server” package in Ubuntu:
  Triaged

Bug description:
  When i load pages from internet the system exit from graphical mode
  for few seconds and close all applications

  #7  OsSigHandler (signo=11, sip=<optimized out>, unused=<optimized out>) at 
../../os/osinit.c:107
  #8  <signal handler called>
  #9  0x0000000000000000 in ?? ()
  #10 0x00007f09da85a050 in DoMakeCurrent (cl=0x7f09dedb8b10, drawId=0, 
readId=<optimized out>, contextId=<optimized out>, tag=<optimized out>) at 
../../glx/glxcmds.c:627
          client = 0x7f09dedb89f0
          reply = {type = 176 '\260', unused = 16 '\020', sequenceNumber = 
56957, length = 32521, contextTag = 3732735488, pad2 = 32521, pad3 = 
3725079752, pad4 = 32521, pad5 = 3721045252, pad6 = 32521}
          glxc = 0x0
          drawPriv = 0x0
          readPriv = 0x0
          __PRETTY_FUNCTION__ = "DoMakeCurrent"
  #11 0x00007f09da85e403 in __glXDispatch (client=<optimized out>) at 
../../glx/glxext.c:581
          rendering = 0 '\000'
          stuff = 0x7f09dedb5c80
          opcode = 26 '\032'
          cl = 0x7f09dedb8b10

  /*
   ** Make the previous context not current.
   */
  if (!(*prevglxc->loseCurrent) (prevglxc)) {  /* Line 627 */
      return __glXError(GLXBadContext);
  }

  
  ProblemType: Crash
  DistroRelease: Ubuntu 13.04
  Package: xserver-xorg-core 2:1.13.3-0ubuntu4
  ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4
  Uname: Linux 3.8.0-15-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.9.2-0ubuntu5
  Architecture: amd64
  CrashCounter: 1
  Date: Sun Mar 31 12:28:23 2013
  ExecutablePath: /usr/bin/Xorg
  InstallationDate: Installed on 2013-03-20 (10 days ago)
  InstallationMedia: Lubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130311.1)
  MarkForUpload: True
  ProcCmdline: /usr/bin/X :0 -core -auth /var/run/lightdm/root/:0 -nolisten tcp 
vt7 -novtswitch -background none
  ProcEnviron:

  Signal: 6
  SourcePackage: xorg-server
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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