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[Bug 1037290] Re: mythfrontend.real crashed with SIGSEGV when starting the second playback

To: mythbuntu-bugs@xxxxxxxxxxxxxxxxxxx
From: Thomas Mashos <1037290@xxxxxxxxxxxxxxxxxx>
Date: Fri, 17 Aug 2012 14:14:11 -0000
Reply-to: Bug 1037290 <1037290@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
What do you mean by mostly resolved? Did you make any other changes?

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https://bugs.launchpad.net/bugs/1037290

Title:
  mythfrontend.real crashed with SIGSEGV when starting the second
  playback

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  I'm having a problem where the frontend is crashing when I attempt to
  play back a second recording.  The first recording plays back fine but
  the next time I try I get a segmentation fault.  The last entry in the
  log was audio related so I have tried another log with -v audio.

  Mythbuntu Packages
  MythTV Version : v0.26-beta-25-gb778ca1
  MythTV Branch : master
  Network Protocol : 75
  Library API : 0.26.20120807-1
  QT Version : 4.8.1
  Options compiled in:
   linux profile use_hidesyms using_alsa using_oss using_pulse
  using_pulseoutput using_backend using_bindings_perl
  using_bindings_python using_bindings_php using_crystalhd using_dvb
  using_firewire using_frontend using_hdhomerun using_ceton using_hdpvr
  using_iptv using_ivtv using_joystick_menu using_libcec using_libcrypto
  using_libdns_sd using_libxml2 using_lirc using_mheg using_opengl_video
  using_qtwebkit using_qtscript using_qtdbus using_v4l2 using_x11
  using_xrandr using_xv using_bindings_perl using_bindings_p

  stephen@bressay:~$ mythfrontend -v audio
  2012-08-14 20:22:58.204103 I  Setup Interrupt handler
  2012-08-14 20:22:58.204122 I  Setup Terminated handler
  2012-08-14 20:22:58.204131 I  Setup Segmentation fault handler
  2012-08-14 20:22:58.204138 I  Setup Aborted handler
  2012-08-14 20:22:58.204146 I  Setup Bus error handler
  2012-08-14 20:22:58.204154 I  Setup Floating point exception handler
  2012-08-14 20:22:58.204162 I  Setup Illegal instruction handler
  2012-08-14 20:22:58.204172 I  Setup User defined signal 1 handler
  2012-08-14 20:22:58.204180 I  Setup User defined signal 2 handler
  2012-08-14 20:22:58.204294 C  mythfrontend version: master
  [v0.26-beta-25-gb778ca1] www.mythtv.org
  2012-08-14 20:22:58.204305 C  Qt version: compile: 4.8.1, runtime: 4.8.1
  2012-08-14 20:22:58.204309 N  Enabled verbose msgs:  general audio
  2012-08-14 20:22:58.204323 N  Setting Log Level to LOG_INFO
  2012-08-14 20:22:58.204489 N  Using runtime prefix = /usr
  2012-08-14 20:22:58.204523 N  Using configuration directory =
  /home/stephen/.mythtv
  2012-08-14 20:22:58.204544 I  Added logging to the console
  2012-08-14 20:22:58.204592 I  Assumed character encoding: en_GB.UTF-8
  2012-08-14 20:22:58.205120 N  Empty LocalHostName.
  2012-08-14 20:22:58.205126 I  Using localhost value of bressay
  2012-08-14 20:22:58.217548 N  Setting QT default locale to en_GB
  2012-08-14 20:22:58.217620 I  Current locale en_GB
  2012-08-14 20:22:58.217662 N  Reading locale defaults from
  /usr/share/mythtv//locales/en_gb.xml
  2012-08-14 20:22:58.223034 I  Starting process manager
  2012-08-14 20:22:58.225234 I  Starting process signal handler
  2012-08-14 20:22:58.225269 I  Starting IO manager (read)
  2012-08-14 20:22:58.225326 I  Starting IO manager (write)
  2012-08-14 20:22:58.326225 I  ScreenSaverX11Private: DPMS is active.
  2012-08-14 20:22:58.348832 N  Desktop video mode: 1920x1080 50.044 Hz
  2012-08-14 20:22:58.367066 I  Listening on TCP 127.0.0.1:6547
  2012-08-14 20:22:58.367176 I  Listening on TCP 192.168.0.3:6547
  2012-08-14 20:22:58.367387 I  Listening on TCP [::1]:6547
  2012-08-14 20:22:58.367479 I  Listening on TCP
  [fe80::223:54ff:feca:9882%eth1]:6547
  2012-08-14 20:22:58.437614 I  Added logging to mythlogserver at TCP:35327
  cannot find libcec.solibcec.so: cannot open shared object file: No
  such file or directory
  2012-08-14 20:22:59.217915 I  RAOP Device: Created RAOP device objects.
  2012-08-14 20:22:59.218112 I  Listening on TCP 127.0.0.1:5000
  2012-08-14 20:22:59.218215 I  Listening on TCP 192.168.0.3:5000
  2012-08-14 20:22:59.218321 I  Listening on TCP [::1]:5000
  2012-08-14 20:22:59.218438 I  Listening on TCP
  [fe80::223:54ff:feca:9882%eth1]:5000
  2012-08-14 20:22:59.218496 I  RAOP Device: Listening for connections
  on port 5000
  2012-08-14 20:22:59.218610 I  AirPlay: Created airplay objects.
  2012-08-14 20:22:59.220158 I  Registering service 3b67435f5725@MythTV
  on bressay._raop._tcp port 5000 TXT
   tp=UDsm=falssv=false ek=1 et=0,1 cn=0,1 ch=2ss=1sr=4410pw=false vn=3   txtvers=md=0,1,2        vs=130.14da=true
  2012-08-14 20:22:59.220603 I  Listening on TCP 127.0.0.1:5100
  2012-08-14 20:22:59.220997 I  Listening on TCP 192.168.0.3:5100
  2012-08-14 20:22:59.221094 I  Listening on TCP [::1]:5100
  2012-08-14 20:22:59.221669 I  Loading en_gb translation for module mythfrontend
  2012-08-14 20:22:59.224836 I  Listening on TCP
  [fe80::223:54ff:feca:9882%eth1]:5100
  2012-08-14 20:22:59.231646 I  LIRC: Successfully initialized
  '/dev/lircd' using '/home/stephen/.mythtv/lircrc' config
  2012-08-14 20:22:59.231746 E  JoystickMenuThread: Joystick disabled -
  Failed to read /home/stephen/.mythtv/joystickmenurc
  2012-08-14 20:22:59.239081 E  CECAdapter: Failed to load libcec.
  2012-08-14 20:22:59.239574 I  Binding to UDP 127.0.0.1:6948
  2012-08-14 20:22:59.239630 I  Binding to UDP 192.168.0.3:6948
  2012-08-14 20:22:59.239694 I  Binding to UDP [::1]:6948
  2012-08-14 20:22:59.239755 I  Binding to UDP
  [fe80::223:54ff:feca:9882%eth1]:6948
  2012-08-14 20:22:59.239812 I  Binding to UDP 192.168.0.255:6948
  2012-08-14 20:22:59.267270 I  Using Frameless Window
  2012-08-14 20:22:59.267317 I  Using Full Screen Window
  2012-08-14 20:22:59.358733 I  Trying the OpenGL painter
  2012-08-14 20:22:59.361448 I  OpenGL: Sync to VBlank is enabled (good!)
  2012-08-14 20:22:59.554301 I  OpenGL1: Fragment program support available
  2012-08-14 20:22:59.554361 I  OpenGL: OpenGL vendor  : NVIDIA Corporation
  2012-08-14 20:22:59.554368 I  OpenGL: OpenGL renderer: GeForce 9400 GT/PCIe/SSE2
  2012-08-14 20:22:59.554373 I  OpenGL: OpenGL version : 3.3.0 NVIDIA 295.40
  2012-08-14 20:22:59.554381 I  OpenGL: Max texture size: 8192 x 8192
  2012-08-14 20:22:59.554387 I  OpenGL: Max texture units: 4
  2012-08-14 20:22:59.554391 I  OpenGL: Direct rendering: Yes
  2012-08-14 20:22:59.554398 I  OpenGL: PixelBufferObject support available
  2012-08-14 20:22:59.554403 I  OpenGL: Initialised MythRenderOpenGL
  2012-08-14 20:22:59.880179 I  Current MythTV Schema Version (DBSchemaVer): 1307
  2012-08-14 20:22:59.916679 W  ThemeInfo: Unable to open themeinfo.xml
  for /usr/share/mythtv/themes/BlackCurves-OSD/themeinfo.xml
  2012-08-14 20:22:59.916694 E  ThemeInfo: The theme
  (/usr/share/mythtv/themes/BlackCurves-OSD) is missing a themeinfo.xml
  file.
  2012-08-14 20:22:59.917419 W  ThemeInfo: Unable to open themeinfo.xml
  for /usr/share/mythtv/themes/Gray-OSD/themeinfo.xml
  2012-08-14 20:22:59.917429 E  ThemeInfo: The theme
  (/usr/share/mythtv/themes/Gray-OSD) is missing a themeinfo.xml file.
  2012-08-14 20:23:00.072820 N  Registering Internal as a media playback plugin.
  2012-08-14 20:23:00.123869 I  Loading en_gb translation for module mytharchive
  2012-08-14 20:23:00.126395 N  Registering WebBrowser as a media playback plugin.
  2012-08-14 20:23:00.126472 I  Loading en_gb translation for module mythbrowser
  2012-08-14 20:23:00.142809 I  Loading en_gb translation for module mythgallery
  2012-08-14 20:23:00.150158 I  Current MythMusic Schema Version
  (MusicDBSchemaVer): 1020
  2012-08-14 20:23:00.171625 I  Loading en_gb translation for module mythmusic
  2012-08-14 20:23:00.173731 I  Loading en_gb translation for module mythnetvision
  2012-08-14 20:23:00.175018 I  Listening on TCP 127.0.0.1:6546
  2012-08-14 20:23:00.175077 I  Listening on TCP 192.168.0.3:6546
  2012-08-14 20:23:00.175142 I  Listening on TCP [::1]:6546
  2012-08-14 20:23:00.175219 I  Listening on TCP
  [fe80::223:54ff:feca:9882%eth1]:6546
  2012-08-14 20:23:00.222744 I  Bonjour: Service registration complete:
  name '3b67435f5725@MythTV on bressay' type '_raop._tcp.' domain:
  'local.'
  2012-08-14 20:23:00.225097 I  Bonjour: Service registration complete:
  name 'MythTV on bressay' type '_airplay._tcp.' domain: 'local.'
  2012-08-14 20:23:00.262250 N  Found mainmenu.xml for theme 'Arclight'
  2012-08-14 20:23:00.770343 I  Bonjour: Service registration complete:
  name 'Mythfrontend on bressay' type '_mythfrontend._tcp.' domain:
  'local.'
  2012-08-14 20:23:15.269071 I  MythCoreContext: Connecting to backend
  server: 192.168.0.3:6543 (try 1 of 1)
  2012-08-14 20:23:15.269778 I  Using protocol version 75
  2012-08-14 20:23:15.324947 I  Using protocol version 75
  2012-08-14 20:23:15.326187 I  Using protocol version 75
  2012-08-14 20:23:16.460073 I  Build background buttonlist item 0
  2012-08-14 20:23:16.590613 I  Build background buttonlist item 100
  2012-08-14 20:23:16.683119 I  Build background buttonlist item 200
  2012-08-14 20:23:17.741658 I  TV: Creating TV object
  2012-08-14 20:23:17.759271 N  Resuming idle timer
  2012-08-14 20:23:17.759324 N  Suspending idle timer
  2012-08-14 20:23:17.760100 I  TV: Created TvPlayWindow.
  2012-08-14 20:23:17.846553 I  TV: Attempting to change from None to
  WatchingPreRecorded
  2012-08-14 20:23:17.874706 I  PulseAudio: ChooseHost, chosen
  PulseAudio server: default
  2012-08-14 20:23:17.874887 I  PulseAudio: ContextConnect, waiting for
  context connection ready
  2012-08-14 20:23:17.875694 I  PulseAudio: ContextConnect, context
  connection ready
  2012-08-14 20:23:17.875975 I  PulseAudio: ServerInfoCallback,
  PulseAudio server info - host name: bressay, server version: 1.1,
  server name: pulseaudio, default sink:
  alsa_output.pci-0000_00_1b.0.analog-stereo
  2012-08-14 20:23:17.876096 I  AOS: Sample rate 44100 is supported
  2012-08-14 20:23:17.876105 I  AOS: 2 channel(s) are supported
  2012-08-14 20:23:17.876168 I  AOS: Format unsigned 8 bit is supported
  2012-08-14 20:23:17.876177 I  AOS: Format signed 16 bit is supported
  2012-08-14 20:23:17.876184 I  AOS: Format signed 24 bit LSB is supported
  2012-08-14 20:23:17.876191 I  AOS: Format signed 32 bit is supported
  2012-08-14 20:23:17.876197 I  AOS: Format 32 bit floating point is supported
  2012-08-14 20:23:17.877065 N  AudioPlayer: Enabling Audio
  2012-08-14 20:23:17.952068 I  AFD: Opened codec 0xb28c840,
  id(MPEG2VIDEO) type(Video)
  2012-08-14 20:23:17.952081 I  AFD: codec MP2 has 2 channels
  2012-08-14 20:23:17.952139 I  AFD: Opened codec 0xb28d020, id(MP2) type(Audio)
  2012-08-14 20:23:17.952164 I  AFD: Audio Track #1, with type 0 is A/V
  stream #1 and has 2 channels in the English language(6647399).
  2012-08-14 20:23:17.952171 I  AFD: codec MP3 has 0 channels
  2012-08-14 20:23:17.952201 I  AFD: Opened codec 0xb28d800, id(MP3) type(Audio)
  2012-08-14 20:23:17.952214 I  AFD: Audio Track #2, with type 0 is A/V
  stream #2 and has 0 channels in the English language(6647399).
  2012-08-14 20:23:17.952234 I  AFD: Opened codec 0xb3150a0,
  id(DVB_SUBTITLE) type(Subtitle)
  2012-08-14 20:23:17.952268 I  AFD: Trying to select default track
  2012-08-14 20:23:17.952274 I  AFD: Trying to select audio track (w/lang)
  2012-08-14 20:23:17.952741 I  AFD: Selected track 1: English MP2 2ch
  (A/V Stream #1)
  2012-08-14 20:23:17.952759 I  AFD: Initializing audio parms from audio track #1
  2012-08-14 20:23:17.952783 I  AFD: Audio format changed
                          from id(NONE)     -1Hz -1ch -1bps     (profile 0) to id( MP2)
  48000Hz  2ch 16bps     (profile 0)
  2012-08-14 20:23:17.952803 I  AO: Killing AudioOutputDSP
  2012-08-14 20:23:17.952819 I  AO: Original codec was MP2, signed 16
  bit, 48 kHz, 2 channels
  2012-08-14 20:23:17.952835 I  AO: enc(0), passthru(0), features ()
  configured_channels(2), 2 channels supported(1) max_channels(2)
  2012-08-14 20:23:17.952845 I  AO: Resampling from 48 kHz to 44 kHz
  with quality medium
  2012-08-14 20:23:17.953001 I  AO: Resampler allocating 15056
  2012-08-14 20:23:17.953010 I  AO: Audio processing enabled
  2012-08-14 20:23:17.953021 I  AO: Opening audio device
  'PulseAudio:default' ch 2(2) sr 44100 sf 32 bit floating point reenc 0
  2012-08-14 20:23:17.953083 I  PulseAudio: OpenDevice, using sample
  spec float32le 2ch 44100Hz
  2012-08-14 20:23:17.954012 I  PulseAudio: ChooseHost, chosen
  PulseAudio server: default
  2012-08-14 20:23:17.954066 I  PulseAudio: ContextConnect, waiting for
  context connection ready
  2012-08-14 20:23:17.954839 I  PulseAudio: ContextConnect, context
  connection ready
  2012-08-14 20:23:17.955087 I  PulseAudio: ServerInfoCallback,
  PulseAudio server info - host name: bressay, server version: 1.1,
  server name: pulseaudio, default sink:
  alsa_output.pci-0000_00_1b.0.analog-stereo
  2012-08-14 20:23:17.958207 I  PulseAudio: fragment size 6174,
  soundcard buffer size 4194304
  2012-08-14 20:23:17.958223 I  AO: Audio fragment size: 6174
  2012-08-14 20:23:17.958978 I  AO: Audio Stretch Factor: 1
  2012-08-14 20:23:17.959031 I  AO: Ending Reconfigure()
  2012-08-14 20:23:17.961555 I  AO: kickoffOutputAudioLoop: pid = 27356
  2012-08-14 20:23:17.961574 I  AO: OutputAudioLoop: Play Event
  2012-08-14 20:23:17.973582 I  Clearing OpenGL painter cache.
  2012-08-14 20:23:18.047442 I  VDPAU: Created 2 output surfaces.
  2012-08-14 20:23:18.047465 I  VDPAU: Version 1
  2012-08-14 20:23:18.047473 I  VDPAU: Information NVIDIA VDPAU Driver
  Shared Library  295.40  Thu Apr  5 21:54:31 PDT 2012
  2012-08-14 20:23:18.047484 I  VDPAU: Created VDPAU render device 1920x1080
  2012-08-14 20:23:18.064813 N  Player(0): Forcing decode extra audio
  option on (Video method requires it).
  2012-08-14 20:23:18.064847 E  FilterManager: Failed to load filter
  'colorspace', no such filter exists
  2012-08-14 20:23:18.109326 I  AO: OutputAudioLoop: Play Event
  2012-08-14 20:23:18.261148 I  Player(0): Video timing method: USleep
  with busy wait
  2012-08-14 20:23:18.264181 I  AO: OutputAudioLoop: Play Event
  2012-08-14 20:23:18.264403 I  TV: Created player.
  2012-08-14 20:23:18.265958 I  TV: Changing from None to WatchingPreRecorded
  2012-08-14 20:23:18.273923 I  TV: Main UI disabled.
  2012-08-14 20:23:18.273935 I  TV: Entering main playback loop.
  2012-08-14 20:23:18.279885 I  ScreenSaverX11Private: DPMS Deactivated 1
  2012-08-14 20:23:18.287221 I  VDPAU: Added 2 output surfaces (total 4, max 4)
  2012-08-14 20:23:21.582516 I  TV: Attempting to change from
  WatchingPreRecorded to None
  2012-08-14 20:23:21.596145 W  MythPainter: 43 images not yet de-allocated.
  2012-08-14 20:23:21.596184 I  VDPAU Painter: Clearing VDPAU painter cache.
  2012-08-14 20:23:21.631885 I  AO: Killing AudioOutputDSP
  2012-08-14 20:23:21.641238 I  AO: OutputAudioLoop: Stop Event
  2012-08-14 20:23:21.641250 I  AO: kickoffOutputAudioLoop exiting
  2012-08-14 20:23:21.692355 I  TV: Changing from WatchingPreRecorded to None
  2012-08-14 20:23:21.692386 I  TV: Exiting main playback loop.
  2012-08-14 20:23:21.692648 I  ScreenSaverX11Private: DPMS Reactivated 1
  2012-08-14 20:23:21.716270 N  Resuming idle timer
  2012-08-14 20:23:26.174003 I  TV: Creating TV object
  2012-08-14 20:23:26.183173 N  Resuming idle timer
  2012-08-14 20:23:26.183299 N  Suspending idle timer
  2012-08-14 20:23:26.184137 I  TV: Created TvPlayWindow.
  2012-08-14 20:23:26.257249 I  TV: Attempting to change from None to
  WatchingPreRecorded
  2012-08-14 20:23:26.272908 I  PulseAudio: ChooseHost, chosen
  PulseAudio server: default
  2012-08-14 20:23:26.273001 I  PulseAudio: ContextConnect, waiting for
  context connection ready
  2012-08-14 20:23:26.273761 I  PulseAudio: ContextConnect, context
  connection ready
  2012-08-14 20:23:26.273864 I  PulseAudio: ServerInfoCallback,
  PulseAudio server info - host name: bressay, server version: 1.1,
  server name: pulseaudio, default sink:
  alsa_output.pci-0000_00_1b.0.analog-stereo
  2012-08-14 20:23:26.273970 I  AOS: Sample rate 44100 is supported
  2012-08-14 20:23:26.273976 I  AOS: 2 channel(s) are supported
  2012-08-14 20:23:26.274009 I  AOS: Format unsigned 8 bit is supported
  2012-08-14 20:23:26.274016 I  AOS: Format signed 16 bit is supported
  2012-08-14 20:23:26.274021 I  AOS: Format signed 24 bit LSB is supported
  2012-08-14 20:23:26.274026 I  AOS: Format signed 32 bit is supported
  2012-08-14 20:23:26.274031 I  AOS: Format 32 bit floating point is supported
  2012-08-14 20:23:26.274188 N  AudioPlayer: Enabling Audio
  Handling Segmentation fault
  Segmentation fault (core dumped)

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: mythtv-frontend 2:0.26.0~master.20120814.b778ca1-0ubuntu0mythbuntu2 [origin: LP-PPA-mythbuntu-0.26]
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
  Uname: Linux 3.2.0-29-generic-pae i686
  NonfreeKernelModules: nvidia
  .var.log.mythtv.mythavtest.log:
   
  .var.log.mythtv.mythccextractor.log:
   
  .var.log.mythtv.mythfilldatabase.log:
   
  .var.log.mythtv.mythjobqueue.log:
   
  .var.log.mythtv.mythlcdserver.log:
   
  .var.log.mythtv.mythmediaserver.log:
   
  .var.log.mythtv.mythmessage.log:
   
  .var.log.mythtv.mythshutdown.log:
   
  .var.log.mythtv.mythutil.log:
   
  .var.log.mythtv.mythwelcome.log:
   
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: i386
  CrashDB: mythbuntu
  Date: Wed Aug 15 21:56:31 2012
  ExecutablePath: /usr/bin/mythfrontend.real
  Installed_mythtv_dbg: 2:0.26.0~master.20120814.b778ca1-0ubuntu0mythbuntu2
  ProcCmdline: /usr/bin/mythfrontend.real --syslog local7
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0xb504fe97 <mpegts_push_section+103>:	movzbl 0x1(%edx),%eax
   PC (0xb504fe97) ok
   source "0x1(%edx)" (0xb42a841e) in non-readable VMA region: 0xb42a8000-0xb42a9000 ---p /usr/lib/libmythavutil.so.51.56.100
   destination "%eax" ok
  SegvReason: reading VMA /usr/lib/libmythavutil.so.51.56.100
  Signal: 11
  SourcePackage: mythtv
  StacktraceTop:
   mpegts_push_section (filter=0xa450220, section=0xa5ac560 ";\260m", section_len=112) at libavformat/mpegts-mythtv.c:689
   write_section_data (s=0xa1eabe0, tss1=0xa450220, buf=0xbf8ef9f5 ";\260m", buf_size=183, is_start=1) at libavformat/mpegts-mythtv.c:401
   handle_packet (ts=0xa634d60, packet=0x7c801948 <Address 0x7c801948 out of bounds>) at libavformat/mpegts-mythtv.c:2535
   handle_packets (ts=0xa634d60, nb_packets=0) at libavformat/mpegts-mythtv.c:2643
   mpegts_read_packet (s=0xa1eabe0, pkt=0xbf8efbdc) at libavformat/mpegts-mythtv.c:2951
  Title: mythfrontend.real crashed with SIGSEGV in mpegts_push_section()
  UpgradeStatus: Upgraded to precise on 2012-08-13 (2 days ago)
  UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin mythtv plugdev sambashare vboxusers video

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