[mythtv-users] backend segfault when re-entering livetv - fixes/0.28 with IPTV tuners

[Mark Perkins]

> -----Original Message-----
> From: Mark Perkins [mailto:perkins1724 at hotmail.com]
> Sent: Friday, 2 December 2016 10:39 PM
> To: 'Discussion about MythTV' <mythtv-users at mythtv.org>
> Subject: RE: [mythtv-users] backend segfault when re-entering livetv -
> fixes/0.28 with IPTV tuners
> 
> 
> 
> > -----Original Message-----
> > From: mythtv-users [mailto:mythtv-users-bounces at mythtv.org] On Behalf
> > Of Mark Perkins
> > Sent: Wednesday, 30 November 2016 7:23 PM
> > To: 'Discussion about MythTV' <mythtv-users at mythtv.org>
> > Subject: Re: [mythtv-users] backend segfault when re-entering livetv -
> > fixes/0.28 with IPTV tuners
> >
> >
> >
> > > -----Original Message-----
> > > From: mythtv-users [mailto:mythtv-users-bounces at mythtv.org] On
> > > Behalf Of Mike Bibbings
> > > Sent: Wednesday, 30 November 2016 1:22 AM
> > > To: Discussion about MythTV <mythtv-users at mythtv.org>
> > > Subject: Re: [mythtv-users] backend segfault when re-entering livetv
> > > -
> > > fixes/0.28 with IPTV tuners
> > >
> > > On 29/11/16 14:04, Mark Perkins wrote:
> > > > Hi all.
> > > >
> > > > I am building a new fixes/0.28 backend. I am testing using IPTV
> tuners.
> > > > However I am getting a backend segfault if I exit and then
> > > > re-enter livetv.
> > > > It doesn't seem to happen while channel surfing. It also doesn't
> > > > seem to happen when I exit livetv (or enter the first time), but
> > > > occurs as soon as I try to return to livetv.
> > > >
> > >
> > > Which IPTV tuner(s) are you using ?
> > >
> > > I know of two mythtv trac tickets #12856 and #12773 (comment 10) -
> > > both cause mythbackend seg faults in
> > > recorders/httptsstreamhandler.cpp:217 in the circumstances you
> > > describe when using VBOX IPTV tuners. At present you will need to
> > > patch the source, see the trac tickets for details. If you
> > are using
> > > HLS Playlists that is going to be a problem as one of the patches
> > > #12856 breaks those (temporary fix awaiting proper resolution).
> > >
> > > Mike
> > >
> > >

Just a quick update to this thread. I have now applied the patch from 12773 https://code.mythtv.org/trac/ticket/12773 and preliminary testing indicates a definite improvement, will run for a while and see how things work out.

In case there is ongoing interest - I can see that the patch from ticket 12773 has been applied to master as part of the VBOX changes "VBOX: Add multi-record support to the vbox recorder" from https://github.com/MythTV/mythtv/commit/d4c0f13aede582183aed7f13019c85846b7bfe4b. There is also an established thread on the mythtv forum at https://forum.mythtv.org/viewtopic.php?t=1724 with the discussion and further information.