[Cbe-oss-dev] physical memory with recent PS3 kernels

[Geoff Levand]

Marcus G. Daniels wrote:
> In the last week or so, using the ps3-linux kernel, I've noticed that 
> the reported memory has gone down to about 100 megs.  I tried disabling 
> CONFIG_SPARSEMEM_VMEMMAP, etc. as described  in this 
> e-mail,http://ozlabs.org/pipermail/cbe-oss-dev/2008-May/004721.html but 
> the problem remains.
> Anyone know offhand if there is a configuration that avoids this?

Try CONFIG_NUMA=n.  It might hide the problem.

I recently found a bug that is overwriting the device tree
data.  One result of this is that the hot plug memory is
not mapped in, so the system boots with just the 128 MiB of
boot mem.  I believe this is the same problem as yours.

I am working on a fix.

-Geoff