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[Bug 1238420] Re: window-stack-bridge crashed with SIGSEGV in QVariant::QVariant()

To: dx-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1238420@xxxxxxxxxxxxxxxxxx>
Date: Sat, 12 Oct 2013 08:11:41 -0000
Reply-to: Bug 1238420 <1238420@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

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

** Changed in: hud (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1238420

Title:
  window-stack-bridge crashed with SIGSEGV in QVariant::QVariant()

Status in “hud” package in Ubuntu:
  Confirmed

Bug description:
  happen on 32-bit Saucy Salamander

  ProblemType: Crash
  DistroRelease: Ubuntu 13.10
  Package: hud 13.10.1+13.10.20131010-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3
  Uname: Linux 3.11.0-11-generic i686
  ApportVersion: 2.12.5-0ubuntu1
  Architecture: i386
  CrashCounter: 1
  Date: Fri Oct 11 12:19:16 2013
  ExecutablePath: /usr/lib/i386-linux-gnu/hud/window-stack-bridge
  InstallationDate: Installed on 2013-10-07 (3 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta i386 (20131005)
  MarkForUpload: True
  ProcCmdline: /usr/lib/i386-linux-gnu/hud/window-stack-bridge
  SegvAnalysis:
   Segfault happened at: 0xb757a70a <_ZN8QVariantC2ERKS_+26>:	mov    (%edi),%eax
   PC (0xb757a70a) ok
   source "(%edi)" (0x00000000) not located in a known VMA region (needed readable region)!
   destination "%eax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: hud
  StacktraceTop:
   QVariant::QVariant(QVariant const&) () from /usr/lib/i386-linux-gnu/libQt5Core.so.5
   QDBusPendingReplyData::argumentAt(int) const () from /usr/lib/i386-linux-gnu/libQt5DBus.so.5
   BamfWindow::BamfWindow(QString const&, QDBusConnection const&) ()
   BamfWindowStack::addWindow(QString const&) ()
   BamfWindowStack::ViewOpened(QString const&, QString const&) ()
  Title: window-stack-bridge crashed with SIGSEGV in QVariant::QVariant()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  upstart.hud.log: (process:1303): hudapplicationlist-WARNING **: Could not get window stack: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.canonical.Unity.WindowStack was not provided by any .service files
  upstart.window-stack-bridge.log: Window:  44040198 "Desktop" has no parents

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