[linux-dvb] Re: Full featured DVB-T card update

[Juri Haberland <juri@koschikode.com>]

Juri Haberland wrote:
> juergen peitz wrote:

>> The crash could only be solved by reloading "dvb-ttpci.o".
>> Don't know if there still will be crashes during normal usage of the card or 
>> if it just was caused by stressing the card to much with to fast channel 
>> switchings.
>> It would be interesting for me get some more debug results, like average and 
>> maximum delay and how often a lock up is reported.
> 
> Ok, I'll enable debugging then.

So I did. And it did nothing good :(

The first run ended in a locked up frontend after VDR started it's EPG
scan without any lockup-message in the logs:

[loading the driver and starting vdr, then I switched to a couple of
channels:]
Aug  9 12:06:41 glotze kernel: sp8870_set_frontend: Delay (40 usec)
Aug  9 12:06:44 glotze vdr[32402]: switching to channel 3
Aug  9 12:06:44 glotze kernel: sp8870_set_frontend: Delay (440 usec)
Aug  9 12:06:47 glotze vdr[32402]: switching to channel 4
Aug  9 12:06:47 glotze kernel: sp8870_set_frontend: Delay (20 usec)

[and after five hours the EPG scan kicks in:]

Aug  9 17:07:07 glotze kernel: sp8870_set_frontend: Delay (20 usec)
Aug  9 17:07:28 glotze kernel: sp8870_set_frontend: Delay (50 usec)
Aug  9 17:07:49 glotze kernel: sp8870_set_frontend: Delay (50 usec)
...
Aug  9 17:43:35 glotze kernel: sp8870_set_frontend: Delay (20 usec)
Aug  9 17:43:56 glotze kernel: sp8870_set_frontend: Delay (40 usec)
Aug  9 17:44:17 glotze kernel: sp8870_set_frontend: Delay (50 usec)
Aug  9 17:44:59 glotze kernel: sp8870_set_frontend: firmware lockup!
Aug  9 17:44:59 glotze kernel: sp8870_set_frontend: Delay (10 usec)
Aug  9 17:44:59 glotze kernel: sp8870_set_frontend: firmware lockup
recovered!
Aug  9 17:45:01 glotze kernel: sp8870_set_frontend: Delay (0 usec)
Aug  9 17:45:32 glotze last message repeated 108 times
Aug  9 17:45:40 glotze last message repeated 44 times
Aug  9 17:45:41 glotze kernel: sp8870_set_frontend: Delay (20 usec)
Aug  9 17:45:50 glotze kernel: sp8870_set_frontend: Delay (0 usec)
Aug  9 17:46:21 glotze last message repeated 106 times
Aug  9 17:47:22 glotze last message repeated 213 times
Aug  9 17:48:23 glotze last message repeated 167 times
Aug  9 17:49:24 glotze last message repeated 213 times
...
and so on for hours, until I came back in, tried to switch to different
channels and had to reload the driver.
Unfortunatly I forgot to change the script which reloads the driver so
the alps_tdlb7.o loaded without debug=1.
But after another five hours VDR's EPG-scan kicked in once again and I
got this in my logs:

Aug 10 05:27:24 glotze kernel: sp8870_set_frontend: firmware
crash!!!!sp8870_set_frontend: firmware crash!!!!sp8870_set_frontend:
firmware crash!!!!sp8870_set_front
end: firmware crash!!!!sp8870_set_frontend: firmware
crash!!!!sp8870_set_frontend: firmware crash!!!!sp8870_set_frontend:
firmware crash!!!!sp8870_set_frontend: fir
mware crash!!!!sp8870_set_frontend: firmware
crash!!!!sp8870_set_frontend: firmware crash!!!!sp8870_set_frontend:
firmware crash!!!!sp8870_set_frontend: firmware cr
ash!!!!sp8870_set_frontend: firmware crash!!!!sp8870_set_frontend:
firmware crash!!!!sp8870_set_frontend: firmware
crash!!!!sp8870_set_frontend: firmware crash!!!!s
p8870_set_frontend: firmware crash!!!!sp8870_set_frontend: firmware
crash!!!!sp8870_set_frontend: firmware crash!!!!sp8870_set_frontend:
firmware crash!!!!sp8870_se
t_frontend: firmware crash!!!!sp8870_set_frontend: firmware
crash!!!!sp8870_set_frontend: firmware crash!!!!sp8870_set_frontend:
firmware crash!!!!sp8870_set_fronte
nd: firmware crash!!!!sp8870_set_frontend:

This repeated roughly every 11 minutes until I tried to switch to another
channel...

I'm now running again with debug=1 after I shut off the machine and
rebooted it to get the card into a clean state.

Cheers,
Juri



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