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[Bug 1437351] Re: webapp-container crashed with SIGSEGV in QGuiApplication::focusObject()

To: ubuntu-apps-bugs@xxxxxxxxxxxxxxxxxxx
From: Chris Coulson <chrisccoulson@xxxxxxxxxx>
Date: Wed, 14 Sep 2016 13:16:16 -0000
Reply-to: Bug 1437351 <1437351@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

*** This bug is a duplicate of bug 1448079 ***
    https://bugs.launchpad.net/bugs/1448079

** This bug is no longer a duplicate of bug 1435465
   Alt+F4 crashes app
** This bug has been marked a duplicate of bug 1448079
   Don't run the event loop after QGuiApplication begins to tear down

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https://bugs.launchpad.net/bugs/1437351

Title:
  webapp-container crashed with SIGSEGV in
  QGuiApplication::focusObject()

Status in webbrowser-app package in Ubuntu:
  New

Bug description:
  occurred after I closed the youtube app

  ProblemType: Crash
  DistroRelease: Ubuntu 15.04
  Package: webapp-container 0.23+15.04.20150323-0ubuntu1
  ProcVersionSignature: Ubuntu 3.19.0-10.10-generic 3.19.2
  Uname: Linux 3.19.0-10-generic x86_64
  ApportVersion: 2.16.2-0ubuntu4
  Architecture: amd64
  CrashCounter: 1
  CurrentDesktop: Unity
  Date: Fri Mar 27 08:56:43 2015
  ExecutablePath: /usr/bin/webapp-container
  InstallationDate: Installed on 2014-12-11 (106 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141210)
  ProcCmdline: webapp-container --app-id=YouTubeyoutubecom --webapp=WW91VHViZQ== --enable-back-forward
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f2ffc7daed4 <_ZN15QGuiApplication11focusObjectEv+36>:	jmpq   *%rdx
   PC (0x7f2ffc7daed4) ok
   source "*%rdx" (0x736544656c694678) not located in a known VMA region (needed readable region)!
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: webbrowser-app
  StacktraceTop:
   QGuiApplication::focusObject() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
   ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libibusplatforminputcontextplugin.so
   QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
   ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libibusplatforminputcontextplugin.so
   ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libibusplatforminputcontextplugin.so
  Title: webapp-container crashed with SIGSEGV in QGuiApplication::focusObject()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm autopilot cdrom dip kismet libvirtd lpadmin plugdev sambashare sudo wireshark

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