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From: Vivek Khera <vivek@khera.org>
Date: Mon, 7 May 2007 13:51:30 -0400
To: FreeBSD AMD64 <freebsd-amd64@freebsd.org>
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Subject: Re: Installing FreeBSD on AMD64 - system freezes during boot
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On May 5, 2007, at 5:09 PM, Fabian Wenk wrote:

> If ACPI disabled does work, you will need the following in /boot/ 
> loder.conf:
>
> hint.acpi.0.disabled="1"

That's a mighty big stick... I've found that with some trial and  
error, you can find the specific acpi component that is uncooperative  
and disable just that.  For example, I have some systems which don't  
like the ACPI timer.  So for those we have in /boot/loader.conf:

  debug.acpi.disabled="timer"

and it works just fine using some other timer mechanism.