I've got a K8WE, and up until a few days ago, snd_ich worked just fine under
6.0-BETA3:
pcm0: <nVidia nForce4> port 0x1800-0x18ff,0x1400-0x14ff mem
0xc8002000-0xc8002fff irq 22 at device 4.0 on pci0
pcm0: [GIANT-LOCKED]
pcm0: <Analog Devices AD1981B AC97 Codec>
Then suddenly, anything playing sound started to hang, and no sound would
come out. I don't remember doing anything at that point in time -- I came
back from work, and it just wasn't working. This message appeared in dmesg:
pcm0: ac97 link rate calibration timed out after 1795248 us
When it happened, I could unload snd_ich, but not sound. And the problem's
been plaguing me ever since: as soon as I load the module, I get the link
rate calibration error. I've since updated to BETA5, but am still seeing
the problem. Additionally, when I tried to kldunload sound earlier today,
my kernel panicked:
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xa0
fault code = supervisor read, page not present
instruction pointer = 0x8:0xffffffff8025155b
stack pointer = 0x10:0xffffffffa7bf79d0
frame pointer = 0x10:0x0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 53790 (kldunload)
trap number = 12
panic: page fault
Uptime: 9m45s
I didn't have a kernel with debugging symbols handy, unfortunately, but
I've
got another one built and ready to go, and I'll see if I can reproduce the
panic later today.
- Damian