[linux-dvb] Re: problems with dmxSctFilterParams and NEWSTRUCT

[jhall@UU.NET (Jeremy Hall)]

Hi,

ok I ran a modified test_sections.c and all was going just fine until I
generated some load.  I will send you my test_sections.c.

Since I am running a nonstandard kernel setup, it may be harder for you to
reproduce it.  I shall try my test with the old driver just to make sure
it isn't reproducable.  The command I tried was:

grep -ril buffer_size * from the top of the vdr source tree.

_J

In the new year, Jeremy Hall wrote:
> I will see what I can do.  The easiest thing I would suggest is to start
> an unmodified vdr and wait.  Then comment the AddFilter directives and
> restart.  You will find that when the EPG processing is running the box
> can lock up.
> 
> I only saw it once with the other program, but I cannot give it to
> you.  Make sure the satellite you try it on has a heavily populated
> EPG.  It's probably related to somebody was saying the EIT processing was
> causing spotty picture.
> 
> I can pretty reliably reproduce it by having vdr just sit on a channel for
> 20 or so minutes.  The more populated the bird, the faster the lockup.
> 
> _J
> 
> In the new year, Holger Waechtler wrote:
> > Hi Jeremy,
> > 
> > do you have a little test program to demonstrate this? Our internal 
> > software opens a lot filters for SI infos and MHP download, without any 
> > problems. Could you please send me your little program that triggers 
> > these bugs?
> > 
> > thanks,
> > 
> > Holger
> > 
> > 
> > Jeremy Hall wrote:
> > > Hi Holger,
> > > 
> > > I have been doing a bit of experimentation with the NEWSTRUCT driver and
> > > have concluded that the driver may cause the computer to lock up when a
> > > section filter is active.  In both vdr and an independant program, using
> > > the current NEWSTRUCT driver with one or more section filters active,
> > > lockups may occur at random intervals.  It seems the more often the
> > > section filters are triggered the greater potential for a hard lock.  The
> > > card itself is capable of continuing to decode the stream as long as
> > > interaction from the PC is not needed.  There appears to be a direct link
> > > between the sct filters and the lockups.
> > > 
> > > _J
> > >  -- 
> > > I do not get viruses because I do not use MS software.
> > > If you use Outlook then please do not put my email address in your
> > > address-book so that WHEN you get a virus it won't use my address in the
> > > From field.
> > > 
> > > 
> > 
> 
> 
> -- 
> I do not get viruses because I do not use MS software.
> If you use Outlook then please do not put my email address in your
> address-book so that WHEN you get a virus it won't use my address in the
> >From field.
> 
> 
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-- 
I do not get viruses because I do not use MS software.
If you use Outlook then please do not put my email address in your
address-book so that WHEN you get a virus it won't use my address in the
From field.


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