[mythtv-users] Please help! Starving frontend continues...

[Tom Bongiorno]

I have updated my frontends and backend to very recent .24-fixes.  I still
get the situation where my frontends starve to death when the live TV ring
buffer flips.  I have included version info and logs.  Does anyone have any
ideas?  Does anything stand out in the logs?  I don't think it is a network
or disk bandwidth issue since I can stream 6 shows at once no problem until
the live TV ring buffer flips.  I am not sure what to look at next.

Thanks in advance,
Tom

> mythbackend --version

MythTV Version   : v0.24.1-80-g1de0431
MythTV Branch    : fixes/0.24
Network Protocol : 63
Library API      : 0.24.20110505-1
QT Version       : 4.7.4


> mythfrontend --version

MythTV Version   : v0.24.1-96-ge89d6a9
MythTV Branch    : fixes/0.24
Network Protocol : 63
Library API      : 0.24.20110505-1
QT Version       : 4.7.2


Backend (mythtvbe1 - 192.1.68.1.100)
------------------------------------
2011-10-30 18:30:00.592 LoadFromScheduler(): Error, called from backend.
2011-10-30 18:30:00.605 AutoExpire: CalcParams(): Max required Free Space:
3.0 GB w/freq: 7 min
2011-10-30 18:30:00.841 Finished recording SpongeBob SquarePants "The Curse
of the Hex": channel 2033
2011-10-30 18:30:01.286 MainServer::ANN Playback
2011-10-30 18:30:01.479 adding: mythtvfe4 as a client (events: 0)
2011-10-30 18:30:01.725 MainServer::HandleAnnounce FileTransfer
2011-10-30 18:30:01.913 adding: mythtvfe4 as a remote file transfer
2011-10-30 18:30:02.005 TVRec(7): RingBufferChanged()
2011-10-30 18:30:04.787 AutoExpire: CalcParams(): Max required Free Space:
3.0 GB w/freq: 7 min
2011-10-30 18:30:04.979 Expiring 0 MB for 2033 at 2011-10-30T18:27:29 =>
"SpongeBob SquarePants":"The Curse of the Hex"
2011-10-30 18:30:05.613 MainServer::ANN Monitor
2011-10-30 18:30:05.772 adding: mythtvbe1 as a client (events: 0)
2011-10-30 18:30:05.829 MainServer::ANN Monitor
2011-10-30 18:30:05.873 adding: mythtvbe1 as a client (events: 1)
2011-10-30 18:30:08.326 RecBase(7:7):
GetKeyframePositions(91,9223372036854775807,#1) out of 3
2011-10-30 18:30:30.013 TVRec(7): Changing from WatchingLiveTV to None
2011-10-30 18:30:30.366 MainServer::ANN Playback
2011-10-30 18:30:30.406 adding: mythtvfe4 as a client (events: 0)
2011-10-30 18:30:30.507 TVRec(8): Changing from None to WatchingLiveTV
2011-10-30 18:30:30.547 TVRec(8): HW Tuner: 8->8
2011-10-30 18:30:30.651 LoadFromScheduler(): Error, called from backend.
2011-10-30 18:30:30.661 AutoExpire: CalcParams(): Max required Free Space:
3.0 GB w/freq: 7 min
2011-10-30 18:30:30.772 TVRec(8): Changing from WatchingLiveTV to None


Frontend (mythtvfe4 - 192.168.1.153)
------------------------------------
2011-10-30 18:30:03.572 AFD: Resetting byte context eof (livetv 1 was eof 0)
2011-10-30 18:30:08.366 RingBuf(myth://
192.168.1.100:6543/2033_20111030183000.mpg): Checking to see if there's a
new livetv program to switch to..
2011-10-30 18:30:08.371 RingBuf(myth://
192.168.1.100:6543/2033_20111030183000.mpg): RingBuffer::Reset() nonzero
readpos.  toAdjust: 1 readpos: -587066432 readAdjust: 1147142912
2011-10-30 18:30:08.372 AFD: Resetting byte context eof (livetv 1 was eof 1)
2011-10-30 18:30:08.372 [ac3 @ 0x11a2b40]incomplete frame
2011-10-30 18:30:09.754 ALSA, Error: WriteAudio: buffer underrun
2011-10-30 18:30:09.850 Player(0): Waited 100ms for video buffers
AAAAALfAAAAAAAAAA
... (20 seconds of "Waited 100ms...")
2011-10-30 18:30:29.708 Player(0): Waited 100ms for video buffers
AAAAALfAAAAAAAAAA
2011-10-30 18:30:29.752 Player(0), Error: Waited too long for decoder to
fill video buffers. Exiting..
2011-10-30 18:30:29.840 TV: Attempting to change from WatchingLiveTV to None
2011-10-30 18:30:29.884 VDPAU Painter: Clearing VDPAU painter cache.
2011-10-30 18:30:30.361 TV: Changing from WatchingLiveTV to None
2011-10-30 18:30:30.413 TV: Attempting to change from None to WatchingLiveTV
2011-10-30 18:30:30.413 MythCoreContext: Connecting to backend server:
192.168.1.100:6543 (try 1 of 1)
2011-10-30 18:30:30.415 Using protocol version 63
2011-10-30 18:30:30.552 Spawning LiveTV Recorder -- begin
2011-10-30 18:30:30.786 Spawning LiveTV Recorder -- end
2011-10-30 18:30:30.807 We have a playbackURL(myth://
192.168.1.100:6543/2033_20111030183030.mpg) & cardtype(DUMMY)
2011-10-30 18:30:30.810 We have a RingBuffer
2011-10-30 18:30:30.812 TV Error: LiveTV not successfully started
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