From owner-freebsd-acpi@FreeBSD.ORG  Fri Nov 25 17:01:04 2005
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Date: Fri, 25 Nov 2005 09:00:55 -0800
From: Nate Lawson <nate@root.org>
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To: Bruno Ducrot <ducrot@poupinou.org>
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Cc: freebsd-acpi@freebsd.org, Timm Florian Gloger <timm.gloger@gmail.com>
Subject: Re: System freezes when using ACPI
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Bruno Ducrot wrote:
> On Fri, Nov 25, 2005 at 02:55:13PM +0100, Timm Florian Gloger wrote:
> 
>>hey list,
>>
>>i installed a fresh 6.0 stable system on my machine.
>>
>>when using acpi the system freezes after less than 10 minutes.
>>with disabled acpi there is no such problem and the system runs fine.
>>
>>i am new to freebsd so i dont know all the things which may influence
>>the acpi driver to misbehave.
>>
>>i attached the outputs which are mentioned in the handbook.
>>
>>the system is:
>>
>>asus a7n8x deluxe rev 2.0 bios 1008
>>amd athlon xp 3000+ fsb 400
>>1 gb ddr400 ram
>>nforce 2 chipset (firewire disabled)
>>sapphire radeon 9800 pro
>>
>>if there are any further information required to get the system work
>>properly ...
> 
> 
> Looks like when you enable ACPI then APIC will be used for
> interrupts whereas ATPIC will be used whithout ACPI.
> 
> I guess the problem come from APIC, not ACPI (unless of course the
> configuration things coming from ACPI is wrong).

If it is the APIC, just set this in /boot/loader.conf:
hint.apic.0.disabled="1"

-- 
Nate