PII SMP system hangs during boot with ACPI enabled

[John Baldwin]

On 21-Dec-2003 John Polstra wrote:
> On 02-Dec-2003 John Baldwin wrote:
>> 
>> On 23-Nov-2003 John Polstra wrote:
>>> I have an old dual PII/400 system that I'm trying to set up as a
>>> -current scratchbox.  The motherboard is a Tyan S1836DLUAN with the
>>> Intel 440BX chipset.  I upgraded the BIOS to the latest from Tyan's
>>> web site.  It is supposed to support ACPI.  I'm using -current from
>>> around noon Pacific time, November 23 (today).
>>> 
>>> The system boots and runs fine if I disable ACPI either in loader.conf
>>> or in the BIOS, but if ACPI is enabled it hangs fairly late in the
>>> boot, right after these messages:
>>> 
>>> lo0: bpf attached
>>> acpi_cpu0: set speed to 100.0%
>>> acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%
> [...]
>> Try http://www.FreeBSD.org/~jhb/patches/acpi_irq.patch
> 
> Bingo!  Looks like you nailed it.  I got home from vacation, updated
> to the latest -current, confirmed it was still broken, and applied
> your patch (which still applied cleanly).  I had to change a couple of
> identifiers to make it compile:
> 
>     APIC_TRIGGER_LEVEL     ==> TRIGGER_LEVEL
>     APIC_POLARITY_ACTIVEHI ==> POLARITY_ACTIVE_HIGH
> 
> I assume those were just typos, and I hope I guessed the right
> replacements.  Anyway, now the system boots and runs fine with ACPI
> enabled, and things like "shutdown -p" do the right thing.  Thanks!
> Your patch looks like a keeper.

Well, except that it breaks other machines like my test machines here. :)
I'm trying to work on making it work better though as well as not hardcode
9 for the SCI interrupt.  Watch this space.

-- 

John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/