linux-traipu team mailing list archive

[Joe Nyland <952873@xxxxxxxxxxxxxxxxxx>]

No problem Marc.

Last night, I upgraded to the use the 0.25 repository, as I was trying
to resolve another issue relating to video playback performance.

During the upgrade, I deleted my channels, then rescanned for channels
(as I had already tried with 0.24 before reporting this bug). The scan
completed successfully, and I was able to proceed through the upgrade
process on 0.25.

Prior to this upgrade, I performed a snapshot of my backend server, so I
can revert this temporarily to obtain the logs/traces you have
requested, if you need me to. I have mentioned this on mythtv-users and
I was told that if the bug is not apparent in 0.25, then a bug against
0.24 would likely be closed on their Trac system anyway. Would this be
the case here, or would you like me to provide the information needed to
look into this bug, in case other users experience this when using the
0.24 repo?

Cheers,

Joe

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You received this bug notification because you are a member of UBUNTU -
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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:
  Incomplete

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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