ACPI freeze the kernel while booting

[YONETANI Tomokazu]

On Thu, Feb 02, 2006 at 02:27:11PM +0100, pidanc_j wrote:
> When enabling ACPI in my laptop, the kernel froze after displaying this:
> 
> [...]
> acpi0: <INSYDE RSDT_000> [tentative] on motherboard
> AcpiOsDerivePciId: bus 2 dev 0 func 0
> AcpiOsDerivePciId: bus 2 dev 2 func 0
> AcpiOsDerivePciId: bus 2 dev 6 func 0
> AcpiOsDerivePciId: bus 0 dev 31 func 0
> AcpiOsDerivePciId: bus 0 dev 31 func 0
> AcpiOsDerivePciId: bus 0 dev 31 func 0

Can you drop into DDB by pressing CTRL+ALT+ESC here?  If so, please
type in `trace' command on the DDB prompt and show me the first several
lines displayed.

> My laptop is a Compal CL-56.
> I didn't notice problems with acpi disabled in dragonflyBSD.

As a workaround, you can use `debug.acpi.disabled' knob in the boot loader.
Try ec, cmbat, thermal, sysresource, acad, or any combination of them first
(space-separated).
The list of other possible sub-devices can be obtained by the following
command:
$ man acpi | less +/sub-devices

And please send me the output of the following command:
$ acpidump -dt > foo.asl

Cheers.