[linux-dvb] Re: popen for ac3 and thread (ringbuffer)problem

["Robert Schneider" <Robert.Schneider@de.ibm.com>]

As mentioned already, I'm fighting the same thing. I have version 0.92 and 
a driver version from CVS last week. As Stephan describes the bug appears 
after you have used the OSD once or twice and it strikes very often when I 
use the jump feature. Pressing the Jump button, the OSD appears, I enter 
the time and press left or right and after that the whole thing is gone. I 
can also see this with a patched version (Showmode) when fast forwarding 
everything is ok and exactly when I press the Play button, it crashes.

I can reload the driver but I have to do it twice, then my systems works 
again without bogus behavior.

Regards,

Robert




Stephan Schreiber <stephan@sschreiber.de>
Sent by: linux-dvb-bounce@linuxtv.org
21.08.2001 00:12
Please respond to Stephan Schreiber

 
        To:     Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>, linux-dvb@linuxtv.org
        cc: 
        Subject:        [linux-dvb] Re: popen for ac3 and thread  (ringbuffer)problem

 

Hi Klaus,

I tried this several times now with two different DVDs (both with AC3 
sound)
>and was able to switch the OSD on and off until my thumb began to hurt 
;-)
>
>Since I don't have actual AC3 hardware I have started VDR with
>
>   vdr -a'cat > filename'
>
>to simulate VDR's Dolby Digital output. Maybe those of you who get these
>hangups could try this, too: don't use the '-a...' option you usually 
use,
>but use one similar to mine, thus leaving out the actual external AC3
>processing. Do the hangups still happen then (with the original VDR 
version)?


Unfortunately they do. I just tried it. It is not AC3DEC's fault.
Unpatched VDR 0.91, Patched (your version) Siemens Driver 20010803.
Siemens DVB-C, K6/III-500 CPU, Asus P5A Board, CI with IRDETO ALLCAM 
installed.
WinFast4x Soundcard (my el-crappo SB Live has expired).

It really is somehow related to the OSD. DVD Playback never crashes, ONLY 
when I push the menu button with a not totally freshly loaded driver. It 
works once or twice, then the whole thing freezes.
It never happens during fast forward/rewind or other commands where I'd 
rather expect something fishy.

The interesting thing about all that is that a driver reload is not 
possible after this kind of crash.
dvb_mon becomes a zombie and the driver won't rmmod.
I rarely experience any crashes otherwise (not even with excessive 
zapping), but when I do, the driver will always reload without any 
problem.

I'll try the latest driver with vdr 0.92 ASAP, the error might as well be 
gone already (?).....


Greetings
Stephan



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