Re: FreeBSD/amd64 on machine without ACPI BIOS? == works

[Denis Fortin]

On 2011-12-09 10:10:18, Lev Serebryakov l...@freebsd.org wrote:
 Soekris (famous developer of small x86-compatible appliance-like
 hardware) released *net6501* some time ago, which is based on Atom (E6xx)
 CPU. It seems, that 64-bit version of Linux could run on it without 
problems.

 But FreeBSD/amd64 can not. It stops after kernel detect some devices
 without any errors or panics.

Nicholas Esborn and I have been looking at this on soekris-tech
and found that if you enable the optional MPSPEC mptable support
in the kernel by adding device mptable to the GENERIC
configuration and rebuild a kernel, you get a FreeBSD 9.0-RC3
amd64 kernel that works fine on the Soekris net6501 in 64-bit
mode.

The GENERIC 32-bit i386 kernel finds the mptable and works fine
out of the box, without any changes or options.

I don't know why device mptable is optional, but enabling it
allows the net6501 to work with amd64.  I assume it's too late
to do something about this for 9.0-RELEASE?

Cheers,

Denis, for...@acm.org

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Re: FreeBSD/amd64 on machine without ACPI BIOS? == works

[Adrian Chadd]

 FWIW, it should be easy to ship a config file for that soekris, which
just does:

include GENERIC
device mptable

It may be worthwhile at least considering this (along with a couple of
comments explaining why the default kernel doesn't work on the soekris
board) for 9.0.

Question: can you load it at boottime as a module?


Adrian
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