: 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
