FreeBSD 8.0 hangs on boot with ACPI enabled

[Joerg Wunsch]

As John Baldwin wrote:

> So this is actually way too early.  The specific issue I'm referring
> to is ACPI setting the BAR to zero when ACPI is initialized long
> before we ever get to this point.  Hmmmmm.  Can you get the output
> of 'devinfo -ur' with ACPI enabled?  Also, you can maybe try setting
> 'debug.acpi.disabled=sysres' from the loader.

Unfortunately, it's getting even more puzzling now. :-/

When I set debug.acpi.disabled=sysres in the loader, I no longer get
the resource allocation failure, thus ahc0 correctly gets the 0xde00
IO address range.  Nevertheless, the boot hangs by the time when it
wants to detect the disks.

When I don't set debug.acpi.disabled=sysres, I'm back at the resource
allocation failure.

The only way to boot FreeBSD 8 is to disable ACPI.

Are you interested in the devinfo -ur output from the FreeBSD 6.2 boot
CD-ROM?  I didn't spot anything interesting in it, but alas forgot to
save it from the serial console link into a file.

-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)