linux-traipu team mailing list archive

[MarcRandolph <mrand@xxxxxxxxx>]

Focus is on the upcoming 0.25 release of MythTV (which will be included
in Ubuntu 12.04) and the original reporter does not find the problem
there.

** Changed in: mythbuntu
   Importance: High => Low

** Changed in: mythbuntu
       Status: Incomplete => Won't Fix

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https://bugs.launchpad.net/bugs/952873

Title:
  MythTV-Setup crashes with segfault when scanning for channels

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Won't Fix

Bug description:
  When running mythtv-setup and performing a channel scan, the scan
  appears to near the end of completion, then mythtv-setup crashes. I am
  therefore unable scan for channels.

  Some info on my system:
  Ubuntu 10.04.4 x86_64
  MythTV installed from MythBuntu repositories
  MythTV Version   : v0.24.2-24-gcd8c9c2
  MythTV Branch    : fixes/0.24
  Network Protocol : 63
  Library API      : 0.24.20110505-1
  QT Version       : 4.6.2
  Options compiled in:
   linux profile using_alsa using_oss using_pulse using_pulseoutput using_backend using_bindings_perl using_bindings_python using_crystalhd using_directfb using_dvb using_firewire using_frontend using_hdhomerun using_hdpvr using_iptv using_ivtv using_joystick_menu using_lirc using_mheg using_opengl_video using_opengl_vsync using_qtdbus using_qtwebkit using_v4l using_x11 using_xrandr using_xv using_bindings_perl using_bindings_python using_mythtranscode using_opengl using_vdpau using_ffmpeg_threads using_live using_mheg

  This is an 'established' system - i.e. it's not a new setup - I was
  able to successfully scan using all the same hardware when I
  originally set the system up.

  Console session leading up to a crash:

  joe@MythTVServer1:~$ taskset -c 0 /usr/bin/mythtv-setup.real --geometry 1024x768
  2012-03-12 07:06:43.431 MythUIHelper: Overriding GUI size: width=1024 height=768
  2012-03-12 07:06:43.431 Using runtime prefix = /usr
  2012-03-12 07:06:43.431 Using configuration directory = /home/joe/.mythtv
  2012-03-12 07:06:43.432 Empty LocalHostName.
  2012-03-12 07:06:43.432 Using localhost value of MythTVServer1
  2012-03-12 07:06:43.655 Cannot find default UPnP backend
  2012-03-12 07:06:43.658 New DB connection, total: 1
  2012-03-12 07:06:43.659 Connected to database 'mythconverg' at host: localhost
  2012-03-12 07:06:43.660 Closing DB connection named 'DBManager0'
  2012-03-12 07:06:43.660 Deleting UPnP client...
  2012-03-12 07:06:43.873 Connected to database 'mythconverg' at host: localhost
  2012-03-12 07:06:43.873 Current locale EN_GB
  2012-03-12 07:06:43.873 Reading locale defaults from /usr/share/mythtv//locales/en_gb.xml
  2012-03-12 07:06:44.081 DPMS is not supported.
  Xlib:  extension "XFree86-VidModeExtension" missing on display "localhost:10.0".
  2012-03-12 07:06:44.095 MythXGetRefreshRate(): X11 ModeLine query failed
  2012-03-12 07:06:44.095 Desktop video mode: 2560x1418 -1000000.000 Hz
  2012-03-12 07:06:44.116 MythUIHelper, Warning: No theme dir: '/usr/share/mythtv/themes/Mythbuntu'
  2012-03-12 07:06:44.116 Could not find theme: Mythbuntu - Switching to Terra
  2012-03-12 07:06:44.118 Loading en_us translation for module mythfrontend
  2012-03-12 07:06:44.118 LIRC, Error: Failed to connect to Unix socket '/dev/lircd'
                          eno: No such file or directory (2)
  2012-03-12 07:06:44.118 JoystickMenuThread: Joystick disabled - Failed to read /home/joe/.mythtv/joystickmenurc
  2012-03-12 07:06:44.139 Using Frameless Window
  2012-03-12 07:06:44.143 Using the Qt painter
  2012-03-12 07:06:44.150 Removing stale cache dir: /home/joe/.mythtv/themecache/Terra.640.480
  2012-03-12 07:06:44.871 Current MythTV Schema Version (DBSchemaVer): 1264
  2012-03-12 07:06:44.980 MythCoreContext: Connecting to backend server: MythTVServer1:6543 (try 1 of 1)
  2012-03-12 07:06:44.981 Using protocol version 63
  2012-03-12 07:06:51.757 Trying to stop backend
  2012-03-12 07:06:51.757 Locking input devices
  mythbackend(5516): Operation not permitted
  mythbackend: no process found
  2012-03-12 07:06:51.896 Unlocking input devices
  2012-03-12 07:07:08.548 Event socket closed. No connection to the backend.
  2012-03-12 07:07:54.750 New DB connection, total: 2
  2012-03-12 07:07:54.751 Connected to database 'mythconverg' at host: localhost
  2012-03-12 07:07:54.763 New DB connection, total: 3
  2012-03-12 07:07:54.764 Connected to database 'mythconverg' at host: localhost
  2012-03-12 07:07:54.769 New DB connection, total: 4
  2012-03-12 07:07:54.769 Connected to database 'mythconverg' at host: localhost
  2012-03-12 07:09:58.522 DTVMux, Warning: Invalid inversion, falling back to 'auto'.
  2012-03-12 07:09:58.523 DTVMux, Warning: Invalid inversion, falling back to 'auto'.
  2012-03-12 07:09:58.525 DTVMux, Warning: Invalid inversion, falling back to 'auto'.
  2012-03-12 07:09:58.525 DTVMux, Warning: Invalid inversion, falling back to 'auto'.
  2012-03-12 07:09:58.525 DTVMux, Warning: Invalid inversion, falling back to 'auto'.
  Segmentation fault

  Entry in /var/log/messages after a crash:

  Mar 12 07:11:12 MythTVServer1 kernel: [415874.768022] mythtv-
  setup.re[12701]: segfault at 7fab165ccdb8 ip 00007fab20120897 sp
  00007fab165ccda0 error 6 in libQtCore.so.4.6.2[7fab2005e000+276000]

  If I can provide any more helpful info, please let me know. I'm also
  happy to perform some testing of possible fixes, if need be.

  Many thanks,

  Joe Nyland

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