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https://bugs.launchpad.net/bugs/712849

Title:
  mythfrontend.real crashed with SIGSEGV in QMutex::lock()

Status in “mythtv” package in Ubuntu:
  New

Bug description:
  Binary package hint: mythtv

  the crash of the frontend happened after a backend crash similar to     Ubuntu
      “mythtv” package
      Bugs
      Bug #708950

  ProblemType: Crash
  DistroRelease: Ubuntu 11.04
  Package: mythtv-frontend 2:0.24.0+fixes.20101214.1405782-0ubuntu1
  ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
  Uname: Linux 2.6.38-1-generic x86_64
  Architecture: amd64
  Date: Fri Feb  4 01:41:04 2011
  ExecutablePath: /usr/bin/mythfrontend.real
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
  Installed_mythtv_dbg: 0.0
  ProcCmdline: /usr/bin/mythfrontend.real --logfile /var/log/mythtv/mythfrontend.log
  ProcEnviron:
   LANGUAGE=it_IT:it:en_GB:en
   PATH=(custom, user)
   LANG=it_IT.UTF-8
   LC_MESSAGES=it_IT.utf8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7fec42b315a6 <_ZN6QMutex4lockEv+214>:	lock xadd %edx,0x4(%rax)
   PC (0x7fec42b315a6) ok
   source "%edx" ok
   destination "0x4(%rax)" (0x7fec42c2c724) in non-writable VMA region: 0x7fec42ac3000-0x7fec42d44000 r-xp /usr/lib/libQtCore.so.4.7.1
   Stack memory exhausted (SP below stack segment)
  SegvReason: writing VMA /usr/lib/libQtCore.so.4.7.1
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   QMutex::lock() () from /usr/lib/libQtCore.so.4
   QMutexLocker::QMutexLocker(QMutex*) ()
   MythImage::UpRef() () from /usr/lib/libmythui-0.24.so.0
   MythUIImage::LoadImage(MythImageReader&, QString const&, QSize, int) () from /usr/lib/libmythui-0.24.so.0
   ImageLoadThread::run() () from /usr/lib/libmythui-0.24.so.0
  Title: mythfrontend.real crashed with SIGSEGV in QMutex::lock()
  UserGroups: adm admin audio cdrom dialout dip fax fuse lpadmin mythtv netdev plugdev polkituser sambashare tape video
  XsessionErrors:
   (gnome-settings-daemon:2262): Gdk-CRITICAL **: IA__gdk_window_thaw_toplevel_updates_libgtk_only: assertion `private->update_and_descendants_freeze_count > 0' failed
   (synapse:2513): Gdk-CRITICAL **: IA__gdk_window_thaw_toplevel_updates_libgtk_only: assertion `private->update_and_descendants_freeze_count > 0' failed
   (awn-applet:2704): Gtk-CRITICAL **: IA__gtk_widget_realize: assertion `GTK_WIDGET_ANCHORED (widget) || GTK_IS_INVISIBLE (widget)' failed
   (awn-applet:2704): Gtk-CRITICAL **: IA__gtk_widget_realize: assertion `GTK_WIDGET_ANCHORED (widget) || GTK_IS_INVISIBLE (widget)' failed
   (nm-applet:2515): Gtk-CRITICAL **: IA__gtk_widget_is_toplevel: assertion `GTK_IS_WIDGET (widget)' failed