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[Bug 1342694] Re: qmlscene crashed with SIGSEGV in _M_release() on quit

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Alan Griffiths <1342694@xxxxxxxxxxxxxxxxxx>
Date: Thu, 17 Jul 2014 13:32:54 -0000
Reply-to: Bug 1342694 <1342694@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Branch linked: lp:~mir-team/mir/enable-late-release-0.5-backport

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https://bugs.launchpad.net/bugs/1342694

Title:
  qmlscene crashed with SIGSEGV in _M_release() on quit

Status in “mir” package in Ubuntu:
  In Progress
Status in “qtdeclarative-opensource-src” package in Ubuntu:
  Invalid

Bug description:
  Given the app:

  import Ubuntu.Components 1.1

  MainView {
    applicationName: "blah"

    Button {
      anchors.centerIn: parent
      text: "Quit"
      onClicked: Qt.quit()
    }
  }

  And launching it with:
  $ qmlscene test.qml --desktop_file_hint=/usr/share/applications/webbrowser-app.desktop

  on the phone (sorry for the webbrowser part, bug #1325984).

  On pressing "Quit", the app segfaults.

  ProblemType: Crash
  DistroRelease: Ubuntu 14.10
  Package: qmlscene 5.3.0-3ubuntu7
  Uname: Linux 3.4.0-5-mako armv7l
  ApportVersion: 2.14.4-0ubuntu2
  Architecture: armhf
  Date: Wed Jul 16 12:22:05 2014
  ExecutablePath: /usr/lib/arm-linux-gnueabihf/qt5/bin/qmlscene
  ExecutableTimestamp: 1404724229
  InstallationDate: Installed on 2014-07-15 (0 days ago)
  InstallationMedia: Ubuntu Utopic Unicorn (development branch) - armhf (20140715-115453)
  ProcCmdline: /usr/lib/arm-linux-gnueabihf/qt5/bin/qmlscene test.qml --desktop_file_hint=/usr/share/applications/webbrowser-app.desktop
  ProcCwd: /home/phablet
  Signal: 11
  SourcePackage: qtdeclarative-opensource-src
  StacktraceTop:
   MirConnection::~MirConnection() () from /usr/lib/arm-linux-gnueabihf/libmirclient.so.8
   MirConnection::~MirConnection() () from /usr/lib/arm-linux-gnueabihf/libmirclient.so.8
   mir_connection_release () from /usr/lib/arm-linux-gnueabihf/libmirclient.so.8
   ?? () from /usr/lib/arm-linux-gnueabihf/libubuntu_application_api_touch_mirclient.so.2.1.0
  Title: qmlscene crashed with SIGSEGV in MirConnection::~MirConnection()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm autopilot cdrom dialout dip nopasswdlogin plugdev sudo tty video

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