kern/41210: configuring fdc0 at pnpbios0 causes kernel uvm fault

[hramrach%centrum.cz@localhost]

>Number:         41210
>Category:       kern
>Synopsis:       configuring fdc0 at pnpbios0 causes kernel uvm fault
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Apr 14 21:15:00 +0000 2009
>Originator:     Michal Suchanek
>Release:        5.0 RC3
>Organization:
>Environment:
i386
>Description:
I tried to build kernel without acpi as acpi does not work for me.

The next thing to try was pnpbios but configuring fdc at pnpbios causes kernel 
uvm fault.

disabling the fdc or pnpbios allows booting the kernel

other pnpbios devices (npx, com, lpt, pckbc) work
>How-To-Repeat:
disable acpi

configure 
fdc* at pnpbios? index ?
>Fix: