2.6.9-mm1: NForce3 problem (IRQ sharing issue?)

[Rafael J. Wysocki]

Hi,

I have a problem with 2.6.9-mm1 on an AMD64 NForce3-based box.  Namely, after 
some time in X, USB suddenly stops working and sound goes off simultaneously 
(it's quite annoying, as I use a USB mouse ;-)).  It is 100% reproducible and 
it may be related to the sharing of IRQ 5:

rafael@albercik:~> cat /proc/interrupts
           CPU0
  0:    3499292          XT-PIC  timer
  1:       7135          XT-PIC  i8042
  2:          0          XT-PIC  cascade
  5:       6945          XT-PIC  NVidia nForce3, ohci_hcd
  8:          0          XT-PIC  rtc
  9:       1416          XT-PIC  acpi, yenta
 10:          2          XT-PIC  ehci_hcd
 11:      37266          XT-PIC  SysKonnect SK-98xx, yenta, ohci1394, ohci_hcd
 12:      13781          XT-PIC  i8042
 14:         16          XT-PIC  ide0
 15:      23601          XT-PIC  ide1
NMI:          0
LOC:    3498657
ERR:          1
MIS:          0

(NVidia nForce3 is a sound chip, snd_intel8x0).  After it happens I can't 
reboot the box cleanly (the ohci-hcd driver cannot be reloaded) and it does 
not leave any traces in the log.

Please let me know if you need any more information.

Greets,
RJW

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