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[Douglas Mackay <1041612@xxxxxxxxxxxxxxxxxx>]

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https://bugs.launchpad.net/bugs/1041612

Title:
  mythwelcome crashes with SIGSEGV in isEmpty() whenever it starts
  frontend

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  This has only started since updating from 0.26 beta to 0.26 RC.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-frontend 2:0.26.0~master.20120823.6566c3c-0ubuntu0mythbuntu2 [origin: LP-PPA-mythbuntu-0.26]
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  Uname: Linux 3.2.0-29-generic x86_64
  NonfreeKernelModules: nvidia
  .var.log.mythtv.mythavtest.log:
   
  .var.log.mythtv.mythccextractor.log:
   
  .var.log.mythtv.mythcommflag.log:
   
  .var.log.mythtv.mythfilldatabase.log:
   
  .var.log.mythtv.mythfrontend.log:
   
  .var.log.mythtv.mythjobqueue.log:
   
  .var.log.mythtv.mythmediaserver.log:
   
  .var.log.mythtv.mythmetadatalookup.log:
   
  .var.log.mythtv.mythpreviewgen.log:
   
  .var.log.mythtv.mythtranscode.log:
   
  .var.log.mythtv.mythtv.setup.log:
   
  .var.log.mythtv.mythutil.log:
   
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: amd64
  CrashDB: mythbuntu
  Date: Sat Aug 25 19:22:20 2012
  ExecutablePath: /usr/bin/mythwelcome
  InstallationMedia: Mythbuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  Installed_mythtv_dbg: 2:0.26.0~master.20120823.6566c3c-0ubuntu0mythbuntu2
  ProcCmdline: mythwelcome
  ProcEnviron:
   TERM=xterm
   SHELL=/bin/bash
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   LANGUAGE=en_GB:en
  SegvAnalysis:
   Segfault happened at: 0x7fc93bfccabf <ServerPool::close()+15>:	mov    0xc(%rax),%edx
   PC (0x7fc93bfccabf) ok
   source "0xc(%rax)" (0x0000000c) not located in a known VMA region (needed readable region)!
   destination "%edx" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   isEmpty (this=0x1ab16a2) at /usr/include/qt4/QtCore/qlist.h:99
   isEmpty (this=0x1ab16a2) at /usr/include/qt4/QtCore/qlist.h:152
   ServerPool::close (this=0x1ab167a) at serverpool.cpp:357
   MythUDPListener::Disable (this=0x1ab1660) at mythudplistener.cpp:57
   MythMainWindow::customEvent (this=0x19f0280, ce=0x7fffdd5a2850) at mythmainwindow.cpp:2330
  Title: mythwelcome crashed with SIGSEGV in isEmpty()
  UpgradeStatus: Upgraded to precise on 2012-04-15 (132 days ago)
  UserGroups: adm admin cdrom dialout lpadmin mythtv plugdev sambashare video
  XsessionErrors:
   (xfwm4:2395): xfwm4-WARNING **: The display does not support the XComposite extension.
   (xfwm4:2395): xfwm4-WARNING **: Compositing manager disabled.
   (polkit-gnome-authentication-agent-1:2414): GLib-CRITICAL **: g_variant_new_string: assertion `string != NULL' failed
   (polkit-gnome-authentication-agent-1:2414): polkit-gnome-1-WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
  modified.conffile..etc.mythtv.session.settings: [modified]
  mtime.conffile..etc.mythtv.session.settings: 2012-08-08T20:17:00.848684

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