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["Peter D." <1091989@xxxxxxxxxxxxxxxxxx>]

Mythtv foreground tasks had not even been started since powerup.

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https://bugs.launchpad.net/bugs/1091989

Title:
  mythpreviewgen crashed with SIGSEGV in malloc()

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  Occurs regularly when generating previews

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-backend 2:0.25.3+fixes.20121206.0b60406-0ubuntu0mythbuntu3 [origin: LP-PPA-mythbuntu-0.25]
  ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
  Uname: Linux 3.2.0-35-generic x86_64
  .var.log.mythtv.mythavtest.log:
   
  .var.log.mythtv.mythccextractor.log:
   
  .var.log.mythtv.mythcommflag.log:
   
  .var.log.mythtv.mythfilldatabase.log:
   
  .var.log.mythtv.mythjobqueue.log:
   
  .var.log.mythtv.mythlcdserver.log:
   
  .var.log.mythtv.mythmediaserver.log:
   
  .var.log.mythtv.mythshutdown.log:
   
  .var.log.mythtv.mythutil.log:
   
  .var.log.mythtv.mythwelcome.log:
   
  ApportVersion: 2.0.1-0ubuntu15.1
  Architecture: amd64
  CrashCounter: 1
  CrashDB: mythbuntu
  Date: Sun Dec 16 06:58:03 2012
  ExecutablePath: /usr/bin/mythpreviewgen
  InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426)
  Installed_mythtv_dbg: 0.0
  MarkForUpload: True
  ProcCmdline: /usr/bin/mythpreviewgen --size 0x0 --chanid 1107 --starttime 20121216050000 --verbose general --loglevel info --syslog local7 --quiet
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SegvAnalysis:
   Segfault happened at: 0x7f18c8b06ae9:	mov    0x18(%rax),%rdx
   PC (0x7f18c8b06ae9) ok
   source "0x18(%rax)" (0x5c5c59575755546c) not located in a known VMA region (needed readable region)!
   destination "%rdx" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   ?? () from /lib/x86_64-linux-gnu/libc.so.6
   malloc () from /lib/x86_64-linux-gnu/libc.so.6
   posix_memalign () from /lib/x86_64-linux-gnu/libc.so.6
   av_malloc () from /usr/lib/libmythavutil.so.50
   av_mallocz () from /usr/lib/libmythavutil.so.50
  Title: mythpreviewgen crashed with SIGSEGV in malloc()
  UpgradeStatus: Upgraded to precise on 2012-10-23 (56 days ago)
  UserGroups: audio cdrom dialout video

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