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[Steve Netting <steve@xxxxxxxxxxxxxx>]

MythTV Version   : 26437
MythTV Branch    : branches/release-0-23-fixes
Network Protocol : 23056
Library API      : 0.23.1.201000710-1
QT Version       : 4.7.0
Options compiled in:
 linux debug using_oss using_alsa using_pulse using_jack using_pulseoutput using_backend using_dvb using_firewire using_frontend using_glx_proc_addr_arb using_hdhomerun using_hdpvr using_iptv using_ivtv using_joystick_menu using_libudev using_lirc using_mheg using_opengl_video using_opengl_vsync using_qtdbus using_qtwebkit using_v4l using_x11 using_xrandr using_xv using_xvmc using_xvmc_vld using_xvmcw using_bindings_perl using_bindings_python using_opengl using_vdpau using_ffmpeg_threads using_libavc_5_3 using_live using_mheg

I've tried attaching apport-cli to the mythbackend process but it reports "No pending crash reports."
I can't find any core files anywhere on the system (I've set ultimit -c unlimited).

I've run 'apport-cli -f --package mythtv-backend' and attached the
output.

I notice the error "MythBackend, Error: No valid capture cards are
defined in the database".

But:-

mysql> select cardid, videodevice, hostname from capturecard;
+--------+-----------------------------+----------+
| cardid | videodevice                 | hostname |
+--------+-----------------------------+----------+
|      8 | /dev/dvb/adapter1/frontend0 | myth     |
|      7 | /dev/dvb/adapter1/frontend0 | myth     |
|      6 | /dev/dvb/adapter0/frontend0 | myth     |
|      5 | /dev/dvb/adapter0/frontend0 | myth     |
+--------+-----------------------------+----------+
4 rows in set (0.00 sec)

and

mysql> select cardinputid, cardid, sourceid, inputname from cardinput;
+-------------+--------+----------+-----------+
| cardinputid | cardid | sourceid | inputname |
+-------------+--------+----------+-----------+
|           1 |      5 |        1 | DVBInput  |
|           2 |      6 |        1 | DVBInput  |
|           3 |      7 |        1 | DVBInput  |
|           4 |      8 |        1 | DVBInput  |
+-------------+--------+----------+-----------+
4 rows in set (0.00 sec)

Is this really an issue with the mythbackend / QT or do I have other
weirdness going on?

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https://bugs.launchpad.net/bugs/705077

Title:
  mythbackend will segfault about 10 minutes after starting. "segfault
  at 50 ip 0209d2dc sp bff215c0 error 4 in
  libQtCore.so.4.7.0[2041000+290000]"

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Invalid

Bug description:
  After performing an apt-get update && apt-get upgrade today (1/19),
  mythbackend is no longer stable. There is no exiting information
  contained in the mythbackend.log file, however there are numerous
  reports of "MainServer, Warning: Unknown socket closing MythSocket"
  and "MainServer, Error: Failed t oopen master server socket, timeout."
  The segfault is recorded in /var/log/messages as follows: "kernel:
  [10921.030926] mythbackend[5755]: segfault at 50 ip 0209d2dc sp
  bff215c0 error 4 in libQtCore.so.4.7.0[2041000+290000]"

  This issue was not present in the earlier package, which I updated to
  earlier this week when I upgraded from 10.04 to 10.10.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: mythtv-backend 2:0.24.0+fixes.20110119.40df4b6-0ubuntu0mythbuntu2
  ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
  Uname: Linux 2.6.35-24-generic i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  CrashDB: mythbuntu
  Date: Wed Jan 19 14:18:35 2011
  InstallationMedia: Mythbuntu 9.10 "Karmic Koala" - Release i386 (20091028.4)
  Installed_mythtv_dbg: 0.0
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: mythtv