[mythtv] Live TV locks up

Boyd II, Willy wboyd at fulbright.com
Thu Sep 18 16:39:55 EDT 2003


Mythfrontend will lock up when the backend crashes.  Maybe check if your
mythbackend is crashing and try to debug that (as well..)?

-----Original Message-----
From: m0j0.j0j0 [mailto:m0j0 at foofus.net]
Sent: Thursday, September 18, 2003 3:15 PM
To: Development of mythtv
Subject: [mythtv] Live TV locks up


I've been having problems with live TV locking occasionally for a number
of weeks. I compiled CVS from yesterday for debug and started live TV
this morning from a GDB session of mythfrontend. It looks like when the
TV locks the frontend gets stuck in a "prebuffering" loop indefinitely,
but doesn't really segfault.

Am I able to get data from GDB about why the picture froze and why it's
looping, even though the frontend didn't crash? Do I just kill off the
threads of the frontend and make a backtrace?

Thanks,
Joe







% gdb programs/mythfrontend/mythfrontend
GNU gdb Red Hat Linux (5.2-2)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "i386-redhat-linux"...
(gdb) run
Starting program:
/pub/downloads/multimedia/myth-cvs/mythtv/programs/mythfrontend/mythfrontend
[New Thread 1024 (LWP 3343)]
2003-09-18 08:11:10 Enabled verbose msgs : important general
generating cache image for:
/usr/local/share/mythtv/themes/default/blank.png
[New Thread 2049 (LWP 3359)]
[New Thread 1026 (LWP 3360)]
connecting to backend server: 192.168.0.11:6543
[New Thread 2051 (LWP 3363)]
[New Thread 3076 (LWP 3364)]
Input #0, mpeg, from
'rbuf://192.168.0.11:6543/pub/media/myth/ringbuf1.nuv':
  Stream #0.0: Video: mpeg2video, 640x480, 29.97 fps, 16000 kb/s
  Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
Opening OSS audio device '/dev/adsp'.
[New Thread 4101 (LWP 3365)]
Over/underscanning. V: 0.020000, H: 0.020000, XOff: 0, YOff: 0
Using XV port 103
[New Thread 5126 (LWP 3366)]
Changing from None to WatchingLiveTV
2003-09-18 08:11:15 prebuffering...
2003-09-18 13:24:26 prebuffering...
2003-09-18 13:24:27 prebuffering...
2003-09-18 13:24:27 prebuffering...
Waited 2 seconds for data to become available, waiting again...
2003-09-18 13:24:27 prebuffering...
2003-09-18 13:24:28 prebuffering...
2003-09-18 13:24:28 prebuffering...
2003-09-18 13:24:28 prebuffering...
2003-09-18 13:24:29 prebuffering...
2003-09-18 13:24:29 prebuffering...
Waited 2 seconds for data to become available, waiting again...





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