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[MarcRandolph <mrand@xxxxxxxxx>]

Howdy, and thank you for helping to improve Mythbuntu by opening this
ticket. Unfortunately, through no fault of your own, attached stacktrace
is not useful to the developers. Could you please update to the latest
version of the debug packages by following the "basic backtrace"
directions outlined here:

http://www.mythtv.org/wiki/Debugging#Debugging_with_Ubuntu_packages

The above process should result in a new ticket being opened if you can
reproduce the issue.

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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:
  Invalid

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