[linux-dvb] Re: WinTV nova problem?

[Ralph Metzler <rjkm@convergence.de>]

Rainer Zocholl writes:
 > >> Jepp. But the problem seems not to be in the application.
 > 
 > >Why?
 > 
 > Because i got too kernel panics from the driver while
 > in the interrupt. 
 > Always in a (one of several) memcpy) routines.


It would help to know in what kind of filter this occurs. 
Is VDR using section filters a the same time?
Is VDR using the DVR device (TS) or PES streams coming from the demux device?

I think VDR uses the DVR device but in this case the copy routines
are really simple and I don't know what could go wrong there.
 
If section filters are used at the same time the problem is more
likely to be in the section filter routines in dvb_demux.c.
I tried to write them in such a way that they don't cause
overflows even if the data is corrupt but there still could be 
bugs in there. 



 > >> These messages are only indicators. From DVB-drvicer i didn't get
 > >> such (warning) messages (if i do not count the kernel oopses that
 > >> sometimes happened in DVBdemux etc. memcpy-routines because the
 > 
 > >Do you mean dvb_demux.c?
 > >Where does this oops occur in there?
 > >Can you run it through ksymoops?

 [...]

 > For example:
 > "objdump -D -S dvbdemux.o"
 > would have helped a lot, but i did not know that trick.


I would really need a ksymoops dump and an "objdump -D -S dvb_demux.o"
of the same routine to show me where exactly the oops occurs.



 > The problem is, that the box has only 2 PCI slots and only
 > one serial. It uses lirc serial so i can't use V.24 terminal emu
 > writing a log file. I tried to make the dvb IR run, 
 > but i found that it was a miss information/understanding:
 > I thought that dvb now supports the IR input on the 2.1 DVB-s for lirc,
 > but it should read, that dvb can now use IR _form_ lirc.
 > And lirc does only support the Hauppage IP control unit (the 
 > "device" with the two AAA batteries ;-) ) and not the IR receiver.


I don't exactly understand what you mean.
The driver DOES support the IR input of the 2.1 card. 
Somebody even reported it works on his old 1.3 card with the receiver
on the CI interface (although it does not work on mine).


Ralph


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