unity8-dash crashed with SIGSEGV in QSGRenderContext::initialize()

[Gavril]

Crash happened generally occasionally

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: unity8 8.11+16.04.20160129-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
Uname: Linux 4.4.0-2-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.19.4-0ubuntu2
Architecture: amd64
Date: Wed Feb 3 20:11:26 2016
ExecutablePath: /usr/bin/unity8-dash
InstallationDate: Installed on 2016-02-01 (2 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160131)
ProcCmdline: unity8-dash --desktop_file_hint=/usr/share/applications/unity8-dash.desktop
ProcEnviron:
 LANGUAGE=it
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fad56e5215d <__strstr_sse2_unaligned+77>: movdqu (%rdi),%xmm3
 PC (0x7fad56e5215d) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%xmm3" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity8
StacktraceTop:
 QSGRenderContext::initialize(QOpenGLContext*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 start_thread (arg=0x7fad14900700) at pthread_create.c:333
 clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Title: unity8-dash crashed with SIGSEGV in QSGRenderContext::initialize()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Apport retracing service (apport)]

StacktraceTop:
 QSGRenderContext::initialize(QOpenGLContext*) () from /tmp/apport_sandbox_5KA5Tc/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
 QSGRenderThread::run() () from /tmp/apport_sandbox_5KA5Tc/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
 QThreadPrivate::start(void*) () from /tmp/apport_sandbox_5KA5Tc/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 start_thread (arg=0x7fad14900700) at pthread_create.c:333
 clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109