[vdr] Re: vdr[3330]: ERROR: can't record MPEG1! - possible cause

[Andreas Schultz <Andreas.Schultz@aschultz.net>]

Hi,

Rainer Zocholl wrote:

> Andreas.Schultz@aschultz.net(Andreas Schultz)  23.09.01 13:31
> 
> 
> 
>>Meanwhile, i believe that it is very unlikely that we would hit this
>>race under normal circumstances.
>>
> 
> I placed the linux vdr disk, the two cards (2.1+nove)
> into an other PC with 700 MHz Celeron with 66Mhz FSB, 
> 2*64MB RAM, i810 Chip set.
> 
> 
> As expected:
> No "MPEG1" errors anymore!
> The budget(nova) card seems to be OK.
> The recording quality of the second card is MUCH better, 
> but has artefacts in audio and video too, but not so many.
> 
> Might it be a problem located nearer to hardware drivers?


This was my first guess, but i didn't want to point the finger to the 
driver developers without having examined all possible other problems.
After inspecting vdr for possible causes, it looks more and more like a 
race in the kernel driver. This is also consistend with the kernel panic 
you had.

Andreas

> 
> 
> 
> 
> 
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 8
> model name      : Celeron (Coppermine)
> stepping        : 3
> cpu MHz         : 701.603
> cache size      : 128 KB
> flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov
> pat pse36 mmx fxsr sse
> bogomips        : 1399.19
> 
> 
> Kernel 2.4.9
> DVB 20010922
> VDR 0.95
> 
> 
> 
> 
> 
> 
> What i get here again the funny messages:
> Sep 23 19:54:34 msi kernel: L64781: init done
> Sep 23 19:54:34 msi kernel: i2c-core.o: driver tda8083 DVB demodulator registered.
> Sep 23 19:54:34 msi kernel: i2c-core.o: I2C adapter 40004: I2C level transfers not supported
> Sep 23 19:54:34 msi kernel: i2c-core.o: I2C adapter 50000: I2C level transfers not supported
> Sep 23 19:54:34 msi kernel: i2c-core.o: driver stv0299 DVB demodulator registered.
> Sep 23 19:54:34 msi kernel: i2c-core.o: I2C adapter 40004: I2C level transfers not supported
> Sep 23 19:54:34 msi kernel: i2c-core.o: I2C adapter 50000: I2C level transfers not supported
> Sep 23 19:54:34 msi kernel: i2c-core.o: driver i2c TV tuner driver registered.
> Sep 23 19:54:35 msi kernel: L64781: probably an EEPROM @ 0x55, skipping ...
> Sep 23 19:54:35 msi kernel: i2c-core.o: client [stv0299] registered to adapter [saa7146(1)](pos. 0).
> Sep 23 19:54:35 msi kernel: tuner: chip found @ 0x61
> ..Rainer---<=====>                         Vertraulich
>              //  
>            //                              
>          <=====>--------------ocholl, Kiel, Germany ------------
> 
> 
>