[linux-dvb] Garbled video/audio from TwinHan DVB-C card

Svein Olav Bjerkeset svein.olav at bjerkeset.com
Sun Oct 30 20:13:56 CET 2005


> You can check this out whether it helps, for the time being ..
>
> http://www.linuxtv.org/pipermail/linux-dvb/2005-September/004866.html
>
> Manu
>

When using dvb-kernel and 2.6.14, I get an Oops when running czap:


Unable to handle kernel NULL pointer dereference at virtual address 0000004c
 printing eip:
d5a62091
*pde = 0e822067
*pte = 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in: dvb_bt8xx nxt6000 mt352 dvb_pll sp887x dst_ca dst bt878
dvb_core cx24110 or51211 lgdt330x tuner bttv video_buf v4l2_common
btcx_risc tveeprom videodev nfs lockd sunrpc snd_via82xx snd_ac97_codec
snd_ac97_bus
CPU:    0
EIP:    0060:[<d5a62091>]    Not tainted VLI
EFLAGS: 00010246   (2.6.14)
EIP is at dvb_bt8xx_start_feed+0x21/0xa0 [dvb_bt8xx]
eax: d5b78000   ebx: ca5ed064   ecx: 00000000   edx: fffffe00
esi: 00000000   edi: d5b0900c   ebp: d5b09000   esp: c924fdf0
ds: 007b   es: 007b   ss: 0068
Process czap (pid: 6021, threadinfo=c924e000 task=c6947a50)
Stack: c924fdf8 c05a3204 00000205 d5b78000 ca5ed064 d5b78000 d5b0900c
d5b41cef
       d5b78000 00000000 00000005 d5b3fc21 d5b78000 00000205 00000005
00000001
       00008000 00000000 00000000 00000101 ca5ed24c cfc91a20 c0178256
c924fea8
Call Trace:
 [<d5b41cef>] dmx_ts_feed_start_filtering+0x4f/0xf0 [dvb_core]
 [<d5b3fc21>] dvb_dmxdev_filter_start+0x2b1/0x430 [dvb_core]
 [<c0178256>] dput+0x116/0x2d0
 [<d5b40446>] dvb_demux_do_ioctl+0x96/0x260 [dvb_core]
 [<d5b3e7d4>] dvb_usercopy+0xb4/0x171 [dvb_core]
 [<d5b3feb6>] dvb_demux_open+0x116/0x160 [dvb_core]
 [<d5b3e121>] dvb_device_open+0xc1/0x200 [dvb_core]
 [<c0168aaa>] chrdev_open+0xda/0x1f0
 [<c015d744>] __dentry_open+0x1a4/0x250
 [<d5b4063f>] dvb_demux_ioctl+0x2f/0x40 [dvb_core]
 [<d5b403b0>] dvb_demux_do_ioctl+0x0/0x260 [dvb_core]
 [<c0172f93>] do_ioctl+0x93/0xa0
 [<c017316b>] vfs_ioctl+0x6b/0x230
 [<c0173375>] sys_ioctl+0x45/0x70
 [<c0102e97>] sysenter_past_esp+0x54/0x75
Code: b9 83 c4 0c 5b 5e 5f c3 89 f6 83 ec 1c 8b 0d c0 50 a6 d5 8b 44 24 20
89 5c 24 10 89 74 24 14 89 7c 24 18 85 c9 8b b0 f4 10 00 00 <8b> 5e 4c 75
3a 8b 56 04 bf ea ff ff ff 85 d2 74 1c ff 0b 0f




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