Xorg crashed with SIGABRT when browsing aliexpress.com with Firefox

[Aminda Suomalainen]

I have no idea how to reproduce this. On laptop always when I go to aliexpress.com with Firefox and spend some time there, X crashes and I am thrown back to login screen. This doesn't happen with desktop PC and I am lost on why.

I have had this happen at least three times, but this is the first time apport manages to open report a bug page.

ProblemType: Crash
DistroRelease: Ubuntu 15.04
Package: xserver-xorg-core 2:1.17.1-0ubuntu3
ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2
Uname: Linux 3.19.0-23-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CrashCounter: 1
Date: Tue Jul 28 10:38:37 2015
ExecutablePath: /usr/bin/Xorg
InstallationDate: Installed on 2015-07-14 (13 days ago)
InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
ProcCmdline: /usr/bin/X :0 -auth /var/run/sddm/:0 -nolisten tcp -background none -noreset vt7
ProcEnviron:
 LANG=fi_FI.UTF-8
 PATH=(custom, no user)
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/glesx.so
 ?? () from /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/glesx.so
 ?? ()
 ?? ()
 ?? ()
Title: Xorg crashed with SIGABRT
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Aminda Suomalainen (mikaela)]

In case Firefox is related to the issue, I am running:

```
% LC_ALL=C apt-cache policy firefox
firefox:
  Installed: 39.0+build5-0ubuntu0.15.04.1
  Candidate: 39.0+build5-0ubuntu0.15.04.1
  Version table:
 *** 39.0+build5-0ubuntu0.15.04.1 0
        500 mirror://mirrors.ubuntu.com/mirrors.txt/ vivid-updates/main amd64 Packages
        500 mirror://mirrors.ubuntu.com/mirrors.txt/ vivid-security/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ vivid-security/main amd64 Packages
        100 /var/lib/dpkg/status
     37.0+build2-0ubuntu1 0
        500 mirror://mirrors.ubuntu.com/mirrors.txt/ vivid/main amd64 Packages
```

No plugins other than http://www.openh264.org/ which appears to ship with Firefox. Loaded plugins are:

* DNSSEC/TLSA Validator
* Fireshot
* GItHub notifier
* IPvFox
* LastPass
* Voikko (Finnish spell checking, I think it's part of l10n-fi of Ubuntu)
* µBlock Origin
* Ubuntu Firefox Modifications
* WOT

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()

[Apport retracing service (apport)]

Thank you for your report!

However, processing it in order to get sufficient information for the
developers failed (it does not generate a useful symbolic stack trace). This
might be caused by some outdated packages which were installed on your system
at the time of the report:

no debug symbol package found for libevdev2
no debug symbol package found for libxshmfence1

Please upgrade your system to the latest package versions. If you still
encounter the crash, please file a new report.

Thank you for your understanding, and sorry for the inconvenience!

[Aminda Suomalainen (mikaela)]

After receiving the email about this being invalid, I went to #ubuntu-bugs where this was discussed, however as seen by end of this log, I am stuck and I am leaving PC for tonight so I thought I should paste it here too.

```
2015-07-28 18:30:34+0300 < Mikaela> Hi, I am having trouble with Ubuntu 15.04 and Firefox. Always when I go to aliexpress.com and spend some time there, Xorg crashes and I am sent back to login screen (sddm). This has happened at least three times and only on the last time Apport succeeded at uploading backtrace and whatever it was doing. https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1479009
2015-07-28 18:30:34+0300 < Mikaela> Shortly after reporting that, Apport emailed me that my bug report is invalid, because my system is not up-to-date while it is and it complains about missing debug symbols for libevdev2 and libxshmfence1 as you can see. However there are no debug packages in Ubuntu repositories that I can see. My sources.lsit is http://sprunge.us/eNFQ
2015-07-28 18:30:34+0300 < Mikaela> What should I do?
2015-07-28 18:30:36+0300 < ubot5> Error: ubuntu bug 1479009 not found
2015-07-28 18:30:54+0300 < Mikaela> oh, yes, because it's marked as private, but I assume there is someone here who has access to it anyway
2015-07-28 18:34:01+0300 < TJ-> Mikaela: "#9 __memmove_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:1384"
2015-07-28 18:35:25+0300 < Mikaela> that says nothing to me
2015-07-28 18:36:15+0300 < TJ-> Mikaela: it's the point in the stacktrace that appears to have caused the abort... I've seen that myself, too
2015-07-28 18:36:41+0300 < Mikaela> I see
2015-07-28 18:43:28+0300 < TJ-> It looks like the apport retracer has missed some debug symbol packages
2015-07-28 18:43:57+0300 < teward> or they weren't installed
2015-07-28 18:44:01+0300 < teward> therefore skipped
2015-07-28 18:45:06+0300 < TJ-> the retracer should install the relevant packages though
2015-07-28 18:46:23+0300 < Mikaela> but those two packages don't exist, as far as I am aware they should be called as libevdev2-dbg and libxshmfence1-dbg, but if you apt-cache search without the -dbg you are only going to find those two packages, no dbg packages or anything else
2015-07-28 18:47:12+0300 < TJ-> Mikaela: they're ddebs
2015-07-28 18:47:23+0300 < teward> TJ-: true... that's odd...
2015-07-28 18:47:42+0300 < TJ-> apt-cache search -n libxshmfence1-dbgsym
2015-07-28 18:47:42+0300 < TJ-> libxshmfence1-dbgsym - debug symbols for package libxshmfence1
2015-07-28 18:47:54+0300 < Mikaela> I am not sure what those are as I haven't heard that word earlier
2015-07-28 18:48:39+0300 < Mikaela> and that command returns nothing for me
2015-07-28 18:49:22+0300 < TJ-> I've checked there's no private info, and reassigned it public bug #1479009
2015-07-28 18:49:23+0300 < ubot5> bug 1479009 in xorg-server (Ubuntu) "Xorg crashed with SIGABRT when browsing aliexpress.com with Firefox" [Undecided,Invalid] https://launchpad.net/bugs/1479009
2015-07-28 18:49:39+0300 < TJ-> Mikaela: You'd need the ddebs repo in apt's sources
2015-07-28 18:50:55+0300 < Mikaela> I see. Should I find those somehow and then reproduce the bug and hope apport wants to send inf...

[mrl586 (mrl586)]

So you have ddebs repo enabled? https://wiki.ubuntu.com/DebuggingProgramCrash

[Aminda Suomalainen (mikaela)]

Yes I have and the package doesn't exist in those repositories.

The crashing also got more frequent also outside of what I said originally so I upgraded to wily, but I haven't had much time to try it..

I am sorry for long response time, I was without access to PC for some days.

[Launchpad Janitor (janitor)]

[Expired for xorg-server (Ubuntu) because there has been no activity for 60 days.]

[Aminda Suomalainen (mikaela)]

I don't think this is fixed, but I have changed primary distribution for various reasons anyway.