[linux-dvb] Very quiet around Nova-T 500

hermann pitton hermann-pitton at arcor.de
Wed Feb 20 01:12:03 CET 2008


Am Dienstag, den 19.02.2008, 22:48 +0000 schrieb Nicolas Will:
> On Tue, 2008-02-19 at 22:56 +0100, Jonas Anden wrote:
> > > > There is not a lot being said about the Nova-T 500 the last week.
> > > > Don´t know if that is a good (coders coding) or a bad (nothin
> > > > happening)
> > > 
> > > Or coders busy on other code, or coders who ran out of ideas, or
> > coders
> > > enjoying life, etc.
> > 
> > ..or just waiting for the problem to reappear ;( The trouble with the
> > second tuner dying is tricky (for me) to isolate.
> > 
> > As a workaround, enabling full debug (debug=15) on the dvb_usb_dib0700
> > module has made my system rock solid. I turned on debugging to try to
> > isolate the issue, but with debugging enabled the problem does not
> > appear (at least not on my system).
> > 
> > I haven't really figured out *what* in the debug code is helping yet,
> > but I still suspect that this is timing-related and the debug code
> > simply slows things down a bit. Enabling debugging will put a whole
> > lot
> > of "junk" in your system log files, but at least the second tuner wont
> > die on you. If you go this path, make sure your log rotation works as
> > it
> > should -- my weekly rotated logs are up to 130 MB in size ;)
> 
> Now stop that logging madness and get back to work!
> 
> ...
> 
> ;o)
> 
> 
> This is a rather comical situation, though... The debugging tool is
> providing a rather unexpected and unwelcomed fix.
> 
> Nico
> 

Hi,

no, it is not. It is well known!

Timings are very critical on almost all drivers.

We hold breath on almost everything coming down from above, nobody has
the ability, or whom should ever want it, to test all possible side
effects on all supported devices ...

That something breaks is very common, and that others have to give the
plumbers, is nothing new.

To stay fair, it mostly has a good reason, and if there are some
remaining ticks left, you might get it adjusted, but ...

On the other side it is the same ...

Cheers,
Hermann










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