Bhyve crash: Effective AML package length is zero.

[Peter Grehan]

Hi William,

> /usr/sbin/bhyve -c 1 -m 1G -A -I -H -P -s 0:0,hostbridge -s
> 2:0,virtio-net,tap0,mac=52:54:00:dc:cd:c5 -s
> 4:0,ahci-cd,/var/lib/libvirt/images/FreeBSD-10.1-RELEASE-amd64-disc1.iso
> -s 3:0,ahci-hd,/var/lib/libvirt/images/bhyve_freebsd.img -Y -l
> com1,/dev/nmdm0A  bhyve
>
> I get the output of the BSD loader from /dev/nmdm0B correctly.
> Following that, the bhyve command appears to hang after I recieve:
>
> /tmp/bhyve.OLmK2S8     84:       Name (PPRT, Package () Remark   2095
> - Effective AML package length is zero ^
>
> No data seems to come through /dev/nmdm0B either. I'm sure that once
> again this is a PEBKAC though, so some tips would be most
> appreciated.

  You'll need to configure an LPC (aka PCI-ISA) bridge for the UART to 
be handled correctly in ACPI e.g. "-s 1:0,lpc"

later,

Peter.