[mythtv-users] mythbackend running, but nothing listening on 6543?

Allen Edwards allen.p.edwards at gmail.com
Sun Nov 15 07:32:59 UTC 2009


On Sat, Nov 14, 2009 at 10:59 PM, Damian Haslam <damian at dickson.st> wrote:

> Just happened across this message in /var/log/messages
> kernel: [24048.899916] mythbackend[30605]: segfault at beed8f8c ip 0183d1c5
> sp beed8f90 error 6 in libQtCore.so.4.5.2[179e000+22b000]
>
> That's really bad... isn't it? How can I fix that?
>
> I'm using all the mythtv packages from 9.10 .... and I'm out of ideas!
>
>
> On 15/11/2009, at 5:40 PM, Damian Haslam wrote:
>
> > Here's a strange one,
> >
> > recently upgraded to 0.22 on Ubuntu 9.10 - running mythbackend ok:
> > $ps ax | grep backend
> > 27768 pts/2    S+     0:00 tail -f /var/log/mythtv/mythbackend.log
> /var/log/mythtv/mythexport.log
> > 28874 ?        Ss     0:00 /bin/su -c /usr/bin/mythbackend --logfile
> /var/log/mythtv/mythbackend.log mythtv
> > 28889 ?        S      0:00 sh -c /usr/bin/mythbackend --logfile
> /var/log/mythtv/mythbackend.log
> > 28890 ?        R      0:00 /usr/bin/mythbackend --logfile
> /var/log/mythtv/mythbackend.log
> >
> >
> > but nothing is running on 6543:
> > $ sudo netstat -tunap | grep 6543
> > $
> >
> > So of course, mythweb doesn't work (can't connect to the backend) and
> neither does the frontend ("is the backend running?")
> >
> > Any ideas?
> >
> > I've done the mythtv-setup stuff, everything is configured correctly as
> far as I can tell...
> >
> > Oh, every 20 seconds or so, I get this in the mythbackend.log file:
> > 2009-11-15 17:35:09.800 mythbackend version: branches/release-0-22-fixes
> [22594] www.mythtv.org
> > 2009-11-15 17:35:09.888 Using runtime prefix = /usr
> > 2009-11-15 17:35:09.929 Using configuration directory =
> /home/mythtv/.mythtv
> > 2009-11-15 17:35:09.972 Empty LocalHostName.
> > 2009-11-15 17:35:10.013 Using localhost value of jupiter
> > 2009-11-15 17:35:10.056 Testing network connectivity to '192.168.2.100'
> > 2009-11-15 17:35:10.116 New DB connection, total: 1
> > 2009-11-15 17:35:10.160 Connected to database 'mythconverg' at host:
> 192.168.2.100
> > 2009-11-15 17:35:10.189 Closing DB connection named 'DBManager0'
> > 2009-11-15 17:35:10.224 Connected to database 'mythconverg' at host:
> 192.168.2.100
> > 2009-11-15 17:35:10.265 Current MythTV Schema Version (DBSchemaVer): 1244
> > 2009-11-15 17:35:10.301 MythBackend: Starting up as the master server.
> > 2009-11-15 17:35:10.344 New DB connection, total: 2
> > 2009-11-15 17:35:10.374 Connected to database 'mythconverg' at host:
> 192.168.2.100
> > 2009-11-15 17:35:10.420 New DB connection, total: 3
> > 2009-11-15 17:35:10.449 Connected to database 'mythconverg' at host:
> 192.168.2.100
> >
>


I am running a script every constantly that checks for the backend and
restarts it if it is missing.  I had the problem you are having about every
2 weeks before, no problem since.

Allen
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