Fatal trap 12 during bootup on Dell Cpt with acpi enabled

[LordYoukai]

It says the ACPI driver cannot be loaded after boot in the cases of 
booting single user and booting multiuser. It always panics after 
detecting ata0.

On 3/11/2010 3:19 AM, Alex Hornung wrote:
: I was experimenting with the latest Dragonfly build on a spare Dell Cpt
: laptop. If you boot with acpi enabled, you get a kernel fault right
: after it outputs "ata0:<ATA channel 0>  on atapci0"
Could you please start up without acpi loaded, and then try loading acpi
later with kldload and see if that panics, too?
If so, try and get a dump by writing 'call dumpsys' at the ddb>  prompt. Once
you have the dump, when you reboot again (without acpi loaded, so it doesn't
panic), the dump will be written to /var/crash.
If you can then upload that dump somewhere, someone might be able to figure
out what the problem is.
Cheers,
Alex Hornung