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PostPosted: Thu Feb 01, 2007 8:04 pm 
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Joined: Thu Sep 22, 2005 12:05 pm
Posts: 45
Location: Northern Kentucky
On my remote frontend as well as the frontend running on my MBE, I am constantly getting a message saying the frontend has lost its connection to the backend. I would say this happens probably less around 10 times a day.

The exact message I get is: The connection to the master backend server has gone away for some reason.. Is it running?

Playback works fine, it's never disconnected during playback of a recorded show at all. If you stay at the recording screen, it will eventually happen. I've noticed that it happens at the same time on both systems.

The mythbackend process never actually dies. I've setup a script to monitor the existing of the mythbackend process and to log to a file in /tmp if it has to restart it, and thats yet to happen.

I'm not able to find anything the logs other than:

from dmesg
Code:
ivtv0: Cause: the application is not reading fast enough.
ivtv0: All encoder MPEG stream buffers are full. Dropping data.
ivtv0: Cause: the application is not reading fast enough.
ivtv1: All encoder MPEG stream buffers are full. Dropping data.
ivtv1: Cause: the application is not reading fast enough.



in /var/log/mythtv/mythbackend.log
Code:
2007-02-01 20:30:18.493 scheduler: Started recording: The War at Home "Zero Tolerance": channel 1004 on cardid 2, sourceid 1
2007-02-01 20:30:18.509 MPEGRec(/dev/video1) Error: Error getting codec params using old IVTV ioctl
                        eno: Bad address (14)
2007-02-01 20:30:19.511 Reschedule requested for id 0.
2007-02-01 20:30:25.104 TFW, Error: Write() -- IOBOUND begin cnt(2048) free(1571)
2007-02-01 20:30:25.434 TFW, Error: Write() -- IOBOUND end


Code:
2007-02-01 21:00:48.290 MythSocket(a8c7ffe0:-1): writeStringList: Error, socket went unconnected.
2007-02-01 21:00:48.329 MythSocket(a8912d40:-1): writeStringList: Error, socket went unconnected.
2007-02-01 20:00:17.671 TVRec(1): Changing from None to RecordingOnly
2007-02-01 20:00:17.793 TVRec(1): HW Tuner: 1->1
2007-02-01 20:00:18.177 MPEGRec(/dev/video0) Error: Error getting codec params using old IVTV ioctl
                        eno: Bad address (14)


Does anybody have any suggestions? This is driving me mad. I can't find anything worth while to lead in the right direction.

_________________
---------------------
Backend:
AMD 1.2GHz
512MB Ram
20GB OS
160GB + 250GB + 250BG (LVM)
PVR-250 + PVR-150


Frontend:
Shuttle XPC
AMD 2200+
512MB RAM
300GB External USB for downloaded content
gForce 5200FX
Connected via DVI to a 56" HDTV


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PostPosted: Fri Feb 02, 2007 7:59 am 
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Joined: Thu Aug 18, 2005 5:13 am
Posts: 111
Are you running R5E50? I had the same problem with my setup. I've seen a few possible fixes but not a clear and simple fix so I installed R5D1 and have no troubles at all. R5E50 looks like it was released a bit too early. A quick look look around and you will see quite a few people are having troubles with it as well.

mike
________
HEALTHY RELATIONSHIP ADVICE FORUMS


Last edited by miker on Tue Feb 22, 2011 9:24 pm, edited 1 time in total.


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PostPosted: Sun Feb 25, 2007 9:43 am 
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Joined: Sun Mar 19, 2006 10:42 am
Posts: 89
I was having this problem in both R5D1 and R5E50.

Found this regarding the IVTV dropping data / not reading fast enough error (Scroll to the end)

http://www.gossamer-threads.com/lists/i ... ata;#33874

I created a file called "options" in /etc/modprobe.d/ that has the following line in it:

options ivtv mpg_buffers=16

I restarted and haven't seen the error since.

HTH


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PostPosted: Mon Mar 03, 2008 12:42 pm 
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Joined: Thu Sep 27, 2007 9:06 pm
Posts: 3
Hi. I'm using R5F27, and I was having a similar problem: very infrequently the backend server would go away. I tried the above but that froze my system upon boot.

I found this link

http://www.gossamer-threads.com/lists/ivtv/users/37562

which suggests using this instead

options ivtv enc_mpg_buffers=16

Now at least my box boots up normally.


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PostPosted: Wed Apr 16, 2008 7:13 pm 
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Joined: Wed Apr 12, 2006 11:28 am
Posts: 82
Location: Beverly Hills, Michigan
Hi There,

One of my friends had a similar problem with his Frontend / Backend connection. We ended up doing a continuous ping to the backend from the frontend (you can actually do it either way). We found that he was dropping about 15 - 20 % of his packets. It ended up being a network card was not going "Full Duplex" on Network Switch but the NIC thought it was "Full Duplex".

Just a thought

_________________
Backend/Frontend
ASUS M4A78-EM w/8400GS 4G RAM pcHDTV 3000 + PVR500 (1045), 1TB, 250 & 320. Iguana IR USB (running R6)
Frontend_1
Asus M2NPV-VM - 1GB RAM - 40 GB Hard Disk - StreamZap
Frontend_2
Dragon 1.0 w/ 2G RAM - 40 GB Hard Disk StreamZap


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