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[Daryl McDonald <darylangela@xxxxxxxxx>]

I wasn't aware of the crash

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https://bugs.launchpad.net/bugs/1017577

Title:
  mythbackend crashed with SIGSEGV in QMutex::lock()

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  Ran a channel scan in mythbackend setup and crash occured when exiting
  setup.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-backend 2:0.25.0+fixes.20120622.73bc45e-0ubuntu0mythbuntu4 [origin: LP-PPA-mythbuntu-0.25]
  ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
  Uname: Linux 3.2.0-25-generic x86_64
  NonfreeKernelModules: nvidia
  .var.log.mythtv.mythavtest.log:
   
  .var.log.mythtv.mythccextractor.log:
   
  .var.log.mythtv.mythjobqueue.log:
   
  .var.log.mythtv.mythlcdserver.log:
   
  .var.log.mythtv.mythmediaserver.log:
   
  .var.log.mythtv.mythshutdown.log:
   
  .var.log.mythtv.mythtranscode.log:
   
  .var.log.mythtv.mythutil.log:
   
  .var.log.mythtv.mythwelcome.log:
   
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  CrashDB: mythbuntu
  Date: Mon Jun 25 10:29:46 2012
  ExecutablePath: /usr/bin/mythbackend
  InstallationMedia: Mythbuntu 12.04 "Precise Pangolin" - Release amd64 (20120425)
  Installed_mythtv_dbg: 0.0
  ProcCmdline: /usr/bin/mythbackend --syslog local7 --user mythtv
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SegvAnalysis:
   Segfault happened at: 0x7f69bbd7d93e <_ZN6QMutex4lockEv+14>:	mov    (%rdi),%rbx
   PC (0x7f69bbd7d93e) ok
   source "(%rdi)" (0x65006e00650067) not located in a known VMA region (needed readable region)!
   destination "%rbx" ok
   Stack memory exhausted (SP below stack segment)
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
   JobQueue::DoMetadataLookupThread(int) () from /usr/lib/libmythtv-0.25.so.0
   JobQueue::MetadataLookupThread(void*) () from /usr/lib/libmythtv-0.25.so.0
   ?? () from /usr/lib/nvidia-current/libGL.so.1
   start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
  Title: mythbackend crashed with SIGSEGV in QMutex::lock()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: audio cdrom dialout video

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