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[Lenka <756536@xxxxxxxxxxxxxxxxxx>]

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https://bugs.launchpad.net/bugs/756536

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

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  crashed during liveTV

  ProblemType: Crash
  DistroRelease: Ubuntu 11.04
  Package: mythtv-frontend 2:0.24.0+fixes.20110410.2a9d9f5-0ubuntu0mythbuntu3
  ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  CrashCounter: 1
  CrashDB: mythbuntu
  Date: Sun Apr 10 14:44:19 2011
  ExecutablePath: /usr/bin/mythfrontend.real
  Installed_mythtv_dbg: 0.0
  ProcCmdline: /usr/bin/mythfrontend.real --logfile /var/log/hostname/mythfrontend.log
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f430da56d27 <_ZN6QMutex7tryLockEv+7>:	cmpb   $0x0,(%rdx)
   PC (0x7f430da56d27) ok
   source "$0x0" ok
   destination "(%rdx)" (0x000000a5) not located in a known VMA region (needed writable region)!
  SegvReason: writing NULL VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   QMutex::tryLock() () from /usr/lib/libQtCore.so.4
   PlayerContext::InStateChange() const () from /usr/lib/libhostname-0.24.so.0
   TV::GetState(PlayerContext const*) const () from /usr/lib/libhostname-0.24.so.0
   TV::GetState(int) const () from /usr/lib/libhostname-0.24.so.0
   ?? ()
  Title: mythfrontend.real crashed with SIGSEGV in QMutex::tryLock()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin cdrom dialout lpadmin mythtv plugdev sambashare video