In my application, I usually used /dev/audio device for audio recording/playing.
But with P4 and VIA8235 chipset M/B, I could not use /dev/audio and /dev/dsp devices.
If I try, I have these errors:


#cat a > /dev/dsp
Unable to handle kernel paging request at virtual address c6858000
printing eip:
c6853a9c
*pde = 05daf067
*pte = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c6853a9c>] Not tainted
EFLAGS: 00010282
eax: 00007fff ebx: fffff400 ecx: c6857ffd edx: 00000076
esi: 00000001 edi: 00007675 ebp: 75747675 esp: c4763e78
ds: 0018 es: 0018 ss: 0018
Process cat (pid: 967, stackpage=c4763000)
Stack: 76763ea8 fffff42a c6853a38 c6853ac2 c68536a6 c5cd2e0c c5cd2df0 00000010
00000003 00000001 00000001 00000000 c688e007 fffff500 fffff400 00000153
00006018 c4c98c80 c5cd2d80 c468e700 c68540fc c5cd2d80 c4c98c80 c4c98d40
Call Trace: [<c6853a38>] [<c6853ac2>] [<c68536a6>] [<c68540fc>] [<c6850c66>]
[<c684d084>] [<c684d208>] [<c684ef75>] [<c012fe76>] [<c0122179>] [<c0108913>]


Code: 8b 29 0f b7 31 0f bf 01 0f b7 d6 89 d7 89 f3 ff 64 24 0c 90
Segmentation fault


However, I can do "aplay /usr/share/sounds/phone.wav". It works very clearly. Thus, I guess I installed well drivers but this M/B does not allow dsp and audio devices for audio playing. Recording work fine and only playing has such problems.

What devices are using for aplay?
Any idea?
Thank you,
bkna.





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