misc/64879: FreeBSD 4.9 freezes when I try to get the sound card working

[Alejandro Valenzuela]

>Number:         64879
>Category:       misc
>Synopsis:       FreeBSD 4.9 freezes when I try to get the sound card working
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Mar 28 20:30:19 PST 2004
>Closed-Date:
>Last-Modified:
>Originator:     Alejandro Valenzuela
>Release:        FreeBSD 4.9
>Organization:
Universidad Nacional Autónoma de México
>Environment:
FreeBSD citlalmina.earthshakers.xs3 4.9-RELEASE FreeBSD 4.9-RELEASE #18: Fri Jan 16 20:30:19 GMT 2004     lanjoe9 at citlalmina.earthshakers:/usr/src/sys/compile/CITL  i386

>Description:
My computer is supposed to have an ICH3 compatible sound card (Yamaha AC-XG, according to windoz), but when I try kldloading the sound driver or loading the kernel with the pcm driver compiled in it, the system freezes with the next messages:
-----
fwohci0: <Texas Instruments TSB43AB22/A> at device 7.0 on pci2
fwohci0: Invalid irq 255
fwohci0: Please switch PNP-OS to 'No' in BIOS
fwohci0: Could not map memory
device_probe_and_attach: fwohci0 attach returned 6
fwohci0: <Texas Instruments TSB43AB22/A> at device 7.0 on pci2
fwohci0: Invalid irq 255
fwohci0: Please switch PNP-OS to 'No' in BIOS
fwohci0: Could not map memory
device_probe_and_attach: fwohci0 attach returned 6
fwohci0: <Texas Instruments TSB43AB22/A> at device 7.0 on pci2
fwohci0: Invalid irq 255
fwohci0: Please switch PNP-OS to 'No' in BIOS
fwohci0: Could not map memory
device_probe_and_attach: fwohci0 attach returned 6
pcm0: <Intel ICH3 (8201CA)> at device 31.5 on pci0
pcm0: Unable to map IO port space
device_probe_and_attach: pcm0 attach returned 6
------

I've got a friend who has an older Toshiba laptop with the same sound card (at least according to windoze) and it works perfectly there.
He uses FreeBSD 4.9 too.
>How-To-Repeat:
      #kldload snd.ko
or
#kldload snd_ich.ko
or 
#kldload snd_pcm.ko

(the rest don't work)
>Fix:
      I haven't been able to do much since I am pretty much a newbie.
After lots of tries, I looked at the driver sources and modified it a bit  (added a few printf() statements to get an idea of what the driver does). The machine freezes after several (about 4) "Probe" operations... 
>Release-Note:
>Audit-Trail:
>Unformatted: