Re: ACPI causes page fault/panic upon reboot
From: Peter Schultz (pmes_at_bis.midco.net)
Date: 12/31/03
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- In reply to: Dan Hulme: "Re: ACPI causes page fault/panic upon reboot"
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Date: Wed, 31 Dec 2003 08:12:29 -0600 To: Dan Hulme <d@diefree.com>
Dan Hulme wrote:
> Disabling ACPI fixes the problem. The problem appears to be in dc0,
> however. See my other reply for details.
>
You might be able to use ACPI, run this command:
`acpidump -t -d > your.asl'
In your.asl, change if statements that compare the value of _OS from
"Windows" to "FreeBSD". For example*:
If (MCTH (\_OS, "Microsoft Windows NT"))
{
Return (PIC1)
}
Else
{
Return (PIC0)
}
Overridden for use with FreeBSD:
If (MCTH (\_OS, "FreeBSD"))
{
Return (PIC1)
}
Else
{
Return (PIC0)
}
After you customize your.asl, you'll want to compile** it, run:
`iasl -f your.asl'
DSDT.aml is the default output filename for the above command. It's
machine code you can offer to ACPI instead of using the DSDT provided
with your motherboard. You do this by editing /boot/loader.conf, add:
acpi_dsdt_load="YES"
acpi_dsdt_name="/boot/DSDT.aml"
Remember to move DSDT.aml to the /boot directory. That's what I've done
to get ACPI working back to how it was in the past.
HTH,
Pete...
* From my OEM ASL, a partnership with Microsoft?
** We're forcing compilation because it seems most OEM ASLs are buggy.
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- Previous message: Hajimu UMEMOTO: "Re: kern.osreldate and EAI_NODATA deprecation"
- In reply to: Dan Hulme: "Re: ACPI causes page fault/panic upon reboot"
- Next in thread: Dan Hulme: "Re: ACPI causes page fault/panic upon reboot"
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