5.0_RC1 intel quadcore stuck at fdc0

[Zafer AydoÄan <zafer%aydogan.de@localhost>]

hello list,

on an intel quadcore machine 5.0_RC1 with acpi enabled hangs at
"fdc at isa0 port 0x3f0-0x3f7 irq 6 drq 2".
and without acpi it hangs at  "attimer0: attached to pcppi0".
I also see that only one cpu is detected, the others
fail to become ready.
This is an ICH9 chipset.
I also tried booting without the keyboard plugged in. No success.

Whats the solution/workaround for this ?

cheers, Zafer.