[mythtv-users] Retuning dvb-t

Alex Butcher mythlist at assursys.co.uk
Thu Jun 4 11:50:51 UTC 2009


On Thu, 4 Jun 2009, Mark Wormgoor wrote:

> Alex Butcher wrote:
>> On Thu, 4 Jun 2009, Mark Wormgoor wrote:
>> 
>>> Steve Curtis wrote:
>>>> I tried this over the weekend and my myth-backend does the scan, and at 
>>>> the end abruptly dumps me out of the myth-setup program.  When I go back 
>>>> in I don't see any changes. 
>>> 
>>> Are you running mythtv-setup on a system with multiple cores? Then it's a 
>>> known bug in 0.21-fixes (fixed in trunk). Run "taskset -c 0 mythtv-setup" 
>>> instead to run on just 1 core.
>> 
>> My Myth box is only a single core P4, so there's more going on here. It is,
>> however, running FC8, so it may well be some OS update that provoked it,
>> hence why I haven't filed a trac bug.
>
> Hyperthreading may also cause the bug to occur. It shows itsself in a 
> segmentation fault when doing the channel scan on dvb.

No hyperthreading either, as it's only a wee 2.53GHz Northwood model! :-]

> Some related trac entries:
> http://svn.mythtv.org/trac/ticket/5367
> http://svn.mythtv.org/trac/ticket/5403
> http://svn.mythtv.org/trac/ticket/5832
> http://svn.mythtv.org/trac/ticket/6551

My symptoms and those of Steve Curtis seem to differ in that the scan
apparently completes successfully, but mythtv-setup crashes out before it
updates the database.

> Kind regards,
> Mark

Best Regards,
Alex.


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