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Linux Kernel or Myth error?

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st3v3.sm1th at gmail

Mar 19, 2008, 10:04 AM

Post #1 of 3 (1201 views)
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Linux Kernel or Myth error?

OK,

So I'm trying to figure out why my backend won't go to sleep... but
that's the bigger story.

Whilst doing this I've come across a very strange symptom:

1) Last night I was using my MediaMVP to watch a recording (It's on
192.168.2.10)
2) This morning I switched it off (by unplugging it).
3) Now (several hours later) I see the following:

a) The Mythbackend hasn't noticed it should be idle and to initiate
the shutdown timer (side issue).
b) netstat -an STILL SHOWS the MVP as CONNECTED!!!
tcp 0 0 192.168.2.26:6543 192.168.2.10:2130 ESTABLISHED

(26 = the mythbox 10 = the MVP)

c) I have backend log full of the messages below:

2008-03-19 16:45:37.334 MythSocket(8452420:-1): writeStringList:
Error, socket went unconnected.
2008-03-19 16:46:37.229 MainServer::HandleAnnounce Playback
2008-03-19 16:46:37.230 adding: eddie as a client (events: 0)
2008-03-19 16:46:37.233 MainServer::HandleAnnounce FileTransfer
2008-03-19 16:46:37.237 adding: eddie as a remote file transfer
2008-03-19 16:46:37.240 RemoteFile::openSocket(control socket):
Could not connect to server "" @ port -1
2008-03-19 16:46:37.241 RemoteFile::openSocket(file data socket):
Could not connect to server "" @ port -1
2008-03-19 16:46:37.243 RingBuffer::RingBuffer(): Failed to open remote file ()
2008-03-19 16:46:37.260 MythSocket(8277968:-1): writeStringList:
Error, socket went unconnected.
2008-03-19 16:47:37.261 MainServer::HandleAnnounce Playback
2008-03-19 16:47:37.319 adding: eddie as a client (events: 0)

So is this a Myth or a Kernel bug, the MVP was switched off several
hours ago so I'd expect the connection should have been dropped by
now.

Anyone?

Cheers

Steve
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knowledgejunkie at gmail

Mar 20, 2008, 12:03 PM

Post #2 of 3 (1157 views)
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Re: Linux Kernel or Myth error? [In reply to]

On 19/03/2008, Steve Smith <st3v3.sm1th [at] gmail> wrote:

> 2008-03-19 16:45:37.334 MythSocket(8452420:-1): writeStringList:
> Error, socket went unconnected.
> 2008-03-19 16:46:37.229 MainServer::HandleAnnounce Playback
> 2008-03-19 16:46:37.230 adding: eddie as a client (events: 0)
> 2008-03-19 16:46:37.233 MainServer::HandleAnnounce FileTransfer
> 2008-03-19 16:46:37.237 adding: eddie as a remote file transfer
> 2008-03-19 16:46:37.240 RemoteFile::openSocket(control socket):
> Could not connect to server "" @ port -1
> 2008-03-19 16:46:37.241 RemoteFile::openSocket(file data socket):
> Could not connect to server "" @ port -1
> 2008-03-19 16:46:37.243 RingBuffer::RingBuffer(): Failed to open remote file ()
> 2008-03-19 16:46:37.260 MythSocket(8277968:-1): writeStringList:
> Error, socket went unconnected.
> 2008-03-19 16:47:37.261 MainServer::HandleAnnounce Playback
> 2008-03-19 16:47:37.319 adding: eddie as a client (events: 0)

From the contents of the log, I'd go for a MythSocket problem. You
could increase socket-level log messages to see if you get more useful
debug information.

Are your backend and MVP runnning compatible versions of MythTV?

--
Nick Morrott

MythTV Official wiki:
http://mythtv.org/wiki/
MythTV users list archive:
http://www.gossamer-threads.com/lists/mythtv/users

"An investment in knowledge always pays the best interest." - Benjamin Franklin
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st3v3.sm1th at gmail

Mar 26, 2008, 8:08 AM

Post #3 of 3 (1117 views)
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Re: Linux Kernel or Myth error? [In reply to]

On 20/03/2008, Nick Morrott <knowledgejunkie [at] gmail> wrote:
> On 19/03/2008, Steve Smith <st3v3.sm1th [at] gmail> wrote:
>
> > 2008-03-19 16:45:37.334 MythSocket(8452420:-1): writeStringList:
> > Error, socket went unconnected.
> > 2008-03-19 16:46:37.229 MainServer::HandleAnnounce Playback
> > 2008-03-19 16:46:37.230 adding: eddie as a client (events: 0)
> > 2008-03-19 16:46:37.233 MainServer::HandleAnnounce FileTransfer
> > 2008-03-19 16:46:37.237 adding: eddie as a remote file transfer
> > 2008-03-19 16:46:37.240 RemoteFile::openSocket(control socket):
> > Could not connect to server "" @ port -1
> > 2008-03-19 16:46:37.241 RemoteFile::openSocket(file data socket):
> > Could not connect to server "" @ port -1
> > 2008-03-19 16:46:37.243 RingBuffer::RingBuffer(): Failed to open remote file ()
> > 2008-03-19 16:46:37.260 MythSocket(8277968:-1): writeStringList:
> > Error, socket went unconnected.
> > 2008-03-19 16:47:37.261 MainServer::HandleAnnounce Playback
> > 2008-03-19 16:47:37.319 adding: eddie as a client (events: 0)
>
>
> From the contents of the log, I'd go for a MythSocket problem. You
> could increase socket-level log messages to see if you get more useful
> debug information.
>
> Are your backend and MVP runnning compatible versions of MythTV?
>
> --
> Nick Morrott
>
> MythTV Official wiki:
> http://mythtv.org/wiki/
> MythTV users list archive:
> http://www.gossamer-threads.com/lists/mythtv/users
>
> "An investment in knowledge always pays the best interest." - Benjamin Franklin
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
Thanks Nick,

I'll see what debugging can be done, or even if it can be reproduced.
As to are MVPMC and Myth backend compatible?...
that's a bigger question isn't it? MVPMC is the latest daily build,
Myth BE is SVN from end of Feb. Of course the 2 aren't really a
perfect match...
I suspect the problem probably lies in Myth, does it perform any
heartbeat type operations on remote clients?

Cheers
Steve
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