[linux-dvb] cx24123 receives wrong tone [heur][sls]

[Giuliano A. Montecarlo]

Steve Toth wrote:

> <cut>
>
>>>     
>>
>> No, I don't have a previous build anymore. I've recompiled 
>> kernel+dvb+v4l, with the hope that it helps, but still still the 
>> "CASE reached default with tone=2".
>>
>> # ./dvbtune -f 12551500 -p v -s 22000000
>> Using DVB card "Conexant CX24123/CX24109"
>> tuning DVB-S to L-Band:0, Pol:V Srate=525163520, 22kHz=off
>> ERROR setting tone
>> : Operation not supported
>> polling....
>> Getting frontend event
>> FE_STATUS:
>> polling....
>> (...)
>> polling....
>>
>>   
>
>
> Just a minor detail. The symbol rate being reported by dvbtune looks 
> wrong, it says 525163520. I think dvbtune takes its input measured in 
> Ksps, try 22000. Not sure if this will break anything (or fix anything 
> for that matter).
>
> I'm using v 0.5 of dvbtune here on 2.6, and in the office on 2.4 and 
> the driver is behaving as expected.
>
> Can you rebuild with the old config to rule out a tool/app problem? I 
> was running tuning tests from 11800 all the way to 127xx using test 
> modulators and live streams in the office without a problem. Maybe 
> something else for you broke recently?
>
> I know for certain DiSEqC is not supported. I have not done that yet.
>
> Steve
>
22000 does not fix anything nor break.
I found out that dvbdate does something REAL bad, maybe that's kind of 
related to my problem. I will try disabling SMP and preemt, maybe that 
helps:

Nov 21 04:31:27 Novoli Unable to handle kernel NULL pointer dereference 
at 0000000000000008 RIP:
Nov 21 04:31:27 Novoli 
<ffffffff884b5198>{:video_buf_dvb:videobuf_dvb_start_feed+40}
Nov 21 04:31:27 Novoli PGD 2dcdf067 PUD 7c7e067 PMD 0
Nov 21 04:31:27 Novoli Oops: 0000 [1] PREEMPT SMP
Nov 21 04:31:27 Novoli CPU 0
Nov 21 04:31:27 Novoli Modules linked in: cx88_dvb cx8802 cx88xx 
btcx_risc tveeprom videodev mt352 or51132 video_buf_dvb dvb_core 
video_buf nxt200x firmware_class lgdt330x cx22702 dvb_pll cx24123 
hci_usb bluetooth parport_pc parport snd_via82xx snd_ac97_codec 
snd_ac97_bus snd_mpu401_uart snd_rawmidi i2c_viapro i2c_algo_bit 
ir_common compat_ioctl32 ohci1394 ieee1394 i2c_core nvidia
Nov 21 04:31:27 Novoli Pid: 20322, comm: dvbdate Tainted: P      
2.6.14-gentoo-r2 #5
Nov 21 04:31:27 Novoli RIP: 0010:[<ffffffff884b5198>] 
<ffffffff884b5198>{:video_buf_dvb:videobuf_dvb_start_feed+40}
Nov 21 04:31:27 Novoli RSP: 0018:ffff81003f3b9cf8  EFLAGS: 00010292
Nov 21 04:31:27 Novoli RAX: 0000000000000000 RBX: 0000000000000000 RCX: 
0000000000000011
Nov 21 04:31:27 Novoli RDX: 00000000ffffffea RSI: 0000000000000000 RDI: 
ffffc20001601000
Nov 21 04:31:27 Novoli RBP: ffffc20001601000 R08: 0000000000000012 R09: 
0000000000000000
Nov 21 04:31:27 Novoli R10: 0000000000000557 R11: 0000000000000000 R12: 
ffff81003b9f5d88
Nov 21 04:31:27 Novoli R13: ffff81003b9f5ae0 R14: ffffc2000059c010 R15: 
ffff81003f3b9e18
Nov 21 04:31:27 Novoli FS:  00000000008b2c00(0000) 
GS:ffffffff80669800(0000) knlGS:00000000083a6f80
Nov 21 04:31:27 Novoli CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Nov 21 04:31:27 Novoli CR2: 0000000000000008 CR3: 0000000039951000 CR4: 
00000000000006e0
Nov 21 04:31:27 Novoli Process dvbdate (pid: 20322, threadinfo 
ffff81003f3b8000, task ffff81003f3eb140)
Nov 21 04:31:27 Novoli Stack: 0000000000000000 ffffc20001601000 
ffff81003b9f5d88 ffff81003b9f5ae0
Nov 21 04:31:27 Novoli ffffc2000059c010 ffffffff884ded8f 
ffffc2000059c018 0000000000000000
Nov 21 04:31:27 Novoli ffffc2000059c018 ffffc2000059c000
Nov 21 04:31:27 Novoli Call 
Trace:<ffffffff884ded8f>{:dvb_core:dmx_section_feed_start_filtering+287}
Nov 21 04:31:27 Novoli 
<ffffffff884dc8cb>{:dvb_core:dvb_dmxdev_filter_start+699}
Nov 21 04:31:27 Novoli <ffffffff80172c08>{do_no_page+1496} 
<ffffffff884dd0a9>{:dvb_core:dvb_demux_do_ioctl+713}
Nov 21 04:31:27 Novoli 
<ffffffff884dcde0>{:dvb_core:dvb_demux_do_ioctl+0} 
<ffffffff884db7a6>{:dvb_core:dvb_usercopy+214}
Nov 21 04:31:27 Novoli <ffffffff80198f74>{do_ioctl+116} 
<ffffffff8019926b>{vfs_ioctl+715}
Nov 21 04:31:27 Novoli <ffffffff801992ed>{sys_ioctl+77} 
<ffffffff8010dcd6>{system_call+126}
Nov 21 04:31:27 Novoli
Nov 21 04:31:27 Novoli
Nov 21 04:31:27 Novoli Code: 48 83 78 08 00 48 8b 98 98 00 00 00 0f 84 
a0 00 00 00 48 8d
Nov 21 04:31:27 Novoli RIP 
<ffffffff884b5198>{:video_buf_dvb:videobuf_dvb_start_feed+40} RSP 
<ffff81003f3b9cf8>
Nov 21 04:31:27 Novoli CR2: 0000000000000008