ADI AD1888 AC97 codec
The kernel panic right after running "./soundon":
- Code: Select all
oss: Probing the hardware for MPU-401 (UART) failed.
AC97: Codec/mixer chip doesn't seem to be alive.
oss: Probing the hardware for Intel ICH AC97 audio controller failed.
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x0
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc22392fa
stack pointer = 0x20:0xd450ebc0
frame pointer = 0x20:0xd450ebc4
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 1006 (sndconf)
trap number = 12
panic: page fault
Dumping 478 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 479MB (122416 pages) 463 447 ...
Now I found that it will panic if the Virtual Mixer is loaded. If that is not there and just ICH5, it will not panic and the driver will load. In either case, the driver will not produce sound. I think this is due to the failure to detect the ADI AD1888 codec.