Logically restricting RAM usage

[Bernd Walter]

On Mon, Jun 30, 2003 at 12:36:40PM +1000, Peter Jeremy wrote:
> This should be a FAQ but I can't find it in the FAQ or the 5.1
> hardware notes.  I thought it was discussed here recently, but can't
> find it in either my own archives or via the FreeBSD mailing list
> search.
> 
> I have access to an AS4100 with 2.5GB RAM.  I'd like to install
> FreeBSD but it's not feasible to physically remove memory.  I can't
> find anything in the SRM to let me disable memory, is there a
> bootloader option to limit memory?

hw.physmem="2G" should do.

You could also try http://www.cosmo-project.de/~bernd/lm-alpha.diff.
Thereticaly it should add large mem support for KN300 systems, but it is
not tested beyound compiling yet.
You need hardware with busdma ported drivers to use this patch on a
large mem system.

-- 
B.Walter                   BWCT                http://www.bwct.de
ticso at bwct.de                                  info at bwct.de