lockup on SMP machine

[Zahemszky Gábor]

Hi!

I've got a Dell WS210, 2-processors system (2 P-III/550). (Last BIOS, 
version A10.) As an SMP system, it works prefectly:

$ fgrep -i cpu /var/run/dmesg.boot
cpu0 BSP:
cpu0 on motherboard
cpu1 on motherboard
SMP: AP CPU #1 Launched!
cpu1 AP:

But if I switch on acpi (set hint.acpi.0.disabled=0 on loader prompt), 
it locks. Here are the last lines from a verbose ACPI- boot:

Preloaded elf module "/boot/kernel/if_xl0" at ....
	snd_cmi
	sound
	snd_mss
	usb
	ugen
	ulpt
	umass
	agp
	ng_ubt
	r128
	smbfs
	libmchain
	libiconv
	acpi
Table 'FACP' at 0xfdf20
Table 'APIC' at 0cfdf94
MADT: Found table at 0xfdf94
MP configuration Table version 1.4 found at 0xc00f0000
APIC: Using the MADT enumerator.
MADT: Found CPU APIC ID 0 ACPI ID 1: enabled
SMP: Added CPU 0 (AP)
MADT: Found CPU APIC ID 1 ACPI ID 2: enabled
SMP: Added CPU 1 (AP)

- and now nothing more. I don't know anything about ACPI/SMP, but 
without acpi, the first processor is BSP, and the second is AP. With 
acpi, both of them are named AP.

Is it possible to use both of the processors, and the ACPI 
implementation on this machine? By the way, OS version is 5-STABLE from 
tomorrow (June 27, 2005, CEST) morning.

Bye,

Gabor < Gabor at Zahemszky dot HU >

-- 
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