[mythtv-users] master: DVB-T segfaults in mythtv-setup and mythbackend

Klaas de Waal klaas.de.waal at gmail.com
Sun Jan 31 18:22:07 UTC 2021


On Sun, 31 Jan 2021 at 18:08, Klaas de Waal <klaas.de.waal at gmail.com> wrote:

>
>
> On Sun, 31 Jan 2021 at 16:08, John Pilkington <johnpilk222 at gmail.com>
> wrote:
>
>> On 31/01/2021 12:30, John Pilkington wrote:
>> > Hi:  I now have current master 823e708 built and installed under el7;
>> > thanks to Gary for his taglib bump.
>> >
>> > But it has a DVB-segfault problem which also affects the Fedora 32 box
>> > at ccec025, and I saw something very similar with the ubuntu 18.04 ppa
>> > on Thursday before that box got reconfigured (rather more drastically
>> > than I had intended) for other duties.
>> >
>> > The F32 box seems normal unless in Live TV mode, when it fails to lock.
>> > I have tried retuning the el7 box but that segfaults before the end of
>> > an 'all transports' scan.  It also shows this on an in-and-out run
>> (from
>> > the command line) of 'MYTHTV_NO_EGL=1 mythtv-setup'
>> >
>>
>> This very strange.  I started mythbackend and let it run.  EIT crawl
>> stared after 5 min and reported a segfault.  A recording is still
>> playing with an overlay saying that MythContext cannot connect.  At one
>> stage I could select any one of the latest 10 or so recordings to play,
>> but now there's only the 'Could not connect' box.
>>
>> On restarting the backend it looks likely to repeat the sequence.
>>
>> (((
>>
>> 2021-01-31 14:36:02.784 I  TVRec[3]: TuningFrequency
>> 2021-01-31 14:41:07.880 I  Reschedule requested for MATCH 0 1 0
>> 2021-02-07T22:00:00Z EITScanner
>> 2021-01-31 14:41:08.032 I  Scheduled 2 items in 0.0 = 0.01 match + 0.01
>> check + 0.01 place
>> 2021-01-31 14:41:08.326 C  'DVBRead': MThread epilog was never run!
>> (DVBRead)
>> 2021-01-31 14:41:08.326 C  'DVBRead': MThread destructor called while
>> thread still running! (DVBRead)
>> 2021-01-31 14:41:08.354 C  Received Segmentation fault: Code 2, PID
>> -121778576, UID 32718, Value 0x00000000
>> Segmentation fault
>> [john at HP_Box ~]$
>>
>> }}}
>>
>
> The mythfrontend of today's master is also broken; after showing the
> program guide and then going back it hangs forever. This is on my living
> room system that runs Ubuntu 18 with Nvidia/VDPAU graphics.
>
>
>>
>> Channel scanning with mythtv-setup, both DVB-T2 and DVB-C, works OK here.
Backend EIT is OK as well. I have only issues with mythfrontend.
Looks like your problems are not identical to mine....
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