[mythtvnz] Mythtvbackend segfaults when using a HDHomerun and DVB-C

[Mark de Reeper]

On Fri, Nov 6, 2009 at 9:42 AM, Douglas Pearless <
Douglas.Pearless at pearless.co.nz> wrote:

> Hi,
>
> I have decided to try my HDHomeRun on DVB-C (telstraclear).
>
> I have configure it and I can watch channel 68 "Choose" by manually tuning
> it using HDHomerun config program and piping the stream to VLC as it is
> unencrypted.
>
> I added it to mythtv and note that I have the very latest build from the
> avenard repo (0.22) and mythbackend segfaults.
>
> running the backend with -v all to capture the debug messages I get:
>
>  2009-11-06 11:14:46.034 HDHRSH(172.22.0.124-0): Successfully connected to
> device
> 2009-11-06 11:14:46.034 HDHRSH: Creating new stream handler 172.22.0.124-0
> for 172.22.0.124-0
> 2009-11-06 11:14:46.035 MSqlQuery::exec() "SELECT cardinputid,
> inputname,   startchan,        tunechan,    externalcommand,        sourceid
> FROM cardinput WHERE cardid = '7'"
> 2009-11-06 11:14:46.035 MSqlQuery::exec() "SELECT channum, callsign,
> channel.chanid,        atsc_major_chan, atsc_minor_chan,        name, icon,
> mplexid, visible FROM channel WHERE sourceid='4' "
> 2009-11-06 11:14:46.035 ChannelBase(7): Input #7: 'MPEG2TS' schan(68)
> sourceid(4) ccid(7)
> 2009-11-06 11:14:46.035 ChannelBase(7): Current Input #7: 'MPEG2TS'
> 2009-11-06 11:14:46.036 MSqlQuery::exec() "SELECT inputgroupid FROM
> inputgroup WHERE cardinputid = '7' ORDER BY inputgroupid, cardinputid,
> inputgroupname"
> 2009-11-06 11:14:46.036 HDHRChan(172.22.0.124-0): SetChannelByString(68)
> 2009-11-06 11:14:46.036 HDHRChan(172.22.0.124-0): Opening HDHR channel
> 2009-11-06 11:14:46.036 MSqlQuery::exec() "SELECT channel.chanid FROM
> channel, capturecard, cardinput WHERE channel.channum      = '68'
> AND       channel.sourceid     = cardinput.sourceid AND
> cardinput.inputname  = 'MPEG2TS'             AND       cardinput.cardid
> = capturecard.cardid AND       capturecard.cardid   = '7'
> AND       capturecard.hostname = 'mythtv'"
> 2009-11-06 11:14:46.037 MSqlQuery::exec() "SELECT inputgroupid FROM
> inputgroup WHERE cardinputid = '7' ORDER BY inputgroupid, cardinputid,
> inputgroupname"
> 2009-11-06 11:14:46.038 MSqlQuery::exec() "SELECT finetune, freqid,
> tvformat, freqtable,        commmethod, mplexid,        atsc_major_chan,
> atsc_minor_chan, serviceid FROM channel, videosource WHERE
> videosource.sourceid = channel.sourceid AND       channum              =
> '68'         AND       channel.sourceid     = '4'"
> 2009-11-06 11:14:46.038 HDHRChan(172.22.0.124-0): Tuning to :114643968
> 2009-11-06 11:14:46.038 HDHRSH(172.22.0.124-0): Tuning channel :114643968
> (was none)
> Segmentation fault
>
> I note that channel 68 is 610000000 Hz, and program 401.
>
> Has anyone got this working or am I on the bleeding edge?
>
I had a similar experience a couple of weekends ago (HDHomerun doing DVB-T)
and ended up having to go back to a rev of .22 that was working for me. Of
course I had removed the packages and updated to the latest from the repo
only to find this issue. It had been long enough the rev I was using was no
longer around so I was forced to download the specific rev (21866) of the
src and compile it myself.

Looks like it is happening in the same spot, here a snip of my log:

2009-10-25 16:56:26.807 MSqlQuery::exec() "SELECT channel.chanid FROM
channel, capturecard, cardinput WHERE channel.channum      = '10'
AND       channel.sourceid     = cardinput.sourceid AND
cardinput.inputname  = 'MPEG2TS'             AND       cardinput.cardid
= capturecard.cardid AND       capturecard.cardid   = '7'
AND       capturecard.hostname = 'mythtv'"
2009-10-25 16:56:26.819 MSqlQuery::exec() "SELECT inputgroupid FROM
inputgroup WHERE cardinputid = '3' ORDER BY inputgroupid, cardinputid,
inputgroupname"
2009-10-25 16:56:26.832 MSqlQuery::exec() "SELECT finetune, freqid,
tvformat, freqtable,        commmethod, mplexid,        atsc_major_chan,
atsc_minor_chan, serviceid FROM channel, videosource WHERE
videosource.sourceid = channel.sourceid AND       channum              =
'10'         AND       channel.sourceid     = '1'"
2009-10-25 16:56:26.844 MSqlQuery::exec() "SELECT transportid, networkid,
frequency, modulation, sistandard FROM dtv_multiplex WHERE mplexid = '6'"
2009-10-25 16:56:26.855 HDHRChan(12104329-1): Tuning to :778000000
2009-10-25 16:56:26.867 HDHRSH(12104329-1): Tuning channel :778000000 (was
none)

Not had a chance to revisit this problem yet (in AU on work at the mo) so
don't have a lot of advice for you except to say to are not alone :-)

Mark
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.ourshack.com/pipermail/mythtvnz/attachments/20091106/9a5f3158/attachment.htm