Xorg segmentation faults when using Synapse

[Ari]

## Description

For the past few months I have been experiencing a sporadic but very dangerous and critical issue. For some unknown reason my Xorg server will sometimes crash when attempting to open the drop-down list in Synapse. This usually happens after the system has been up for a while.

Downgrading Synapse to the build in the Ubuntu repos didn't help. Neither did upgrading the kernel and graphics stack to the latest hardware enablement stacks (I tried both Quantal and Raring. I am currently on the latter.)

Do you think this is a fault on Synapse's part or will I have to report this with X.org?

In any case I sincerely hope there is some way to fix this and I'd appreciate any help.

## Additional information:

Synapse

$ uname -a
Linux UBN 3.8.0-31-generic #46~precise1-Ubuntu SMP Wed Sep 11 18:21:16 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

$ lsb_release -rd
Description: Ubuntu 12.04.3 LTS
Release: 12.04

$ policy synapse
synapse:
  Installed: 0.2.8.2-1ubuntu1.1
  Candidate: 0.2.8.2-1ubuntu1.1

$ policy xserver-xorg-lts-raring
xserver-xorg-lts-raring:
  Installed: 1:7.7+1ubuntu4~precise1
  Candidate: 1:7.7+1ubuntu4~precise1

$ policy fglrx
fglrx:
  Installed: 2:12.100-0ubuntu1
  Candidate: 2:12.100-0ubuntu1

$ fglrxinfo
display: :0 screen: 0
OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: ATI Mobility Radeon HD 5000 Series
OpenGL version string: 4.2.12173 Compatibility Profile Context 12.10.17

Attached to this bug report are two X.org.logs from some of the last crashes, a log file of Synapse's stdout/stderr and various configuration files related to Synapse.

Thank you for taking the time to read this

[Ari (ari-lp)]

The crash seems to be related to libpixman:

    Signal: 6
    SourcePackage: xorg-server-lts-raring
    StacktraceTop:
     ?? () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0
     ?? () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0
     pixman_blt () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0
     fbCopyNtoN () from /usr/lib/xorg/modules/libfb.so
     ?? () from /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/glesx.so
    Title: Xorg crashed with SIGABRT in pixman_blt()
    UpgradeStatus: No upgrade log present (probably fresh install)
    UserGroups:

You can find more information in my bug report against Xorg/pixman:

https://bugs.launchpad.net/pixman/+bug/1236922

The crashes are occurring weekly now. I sincerely hope there's some way to fix them. Synapse is miles ahead of any other launcher for Linux and I would hate to have to abandon it. Please help me troubleshoot this.

[penalvch (penalvch)]

Ari, your version of the enablement stack is EOL since August 2014 as outlined in https://wiki.ubuntu.com/Kernel/LTSEnablementStack.

If you are having an xorg crash issue, it will help immensely if you filed a new report with Ubuntu by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information running the following from a terminal:
ubuntu-bug xorg

Also, please feel free to subscribe me to it.

For more on why this is helpful, please see https://wiki.ubuntu.com/ReportingBugs.